Specifications

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R22 Heat Pump / Cooling Only

Si38-304

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Summary of content (346 pages)

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Si38-304 R22 Heat Pump / Cooling Only http://splitoff.ru/tehn-doc.html , , , .
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Si38-304 R22 Heat Pump / Cooling Only R22 Heat Pump / Cooling Only ........................................................ i 1. Introduction ............................................................................................ vi 1.1 Safety Cautions ....................................................................................... vi 1.2 PREFACE ................................................................................................x Part 1 General Information ........................
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Si38-304 3.3 3.4 3.5 3.6 3.7 Defrosting Operation ..............................................................................99 Pump-down Residual Operation ..........................................................100 Restart Standby....................................................................................101 Stopping Operation ..............................................................................102 Pressure Equalization prior to Startup..............................................
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Si38-304 2.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........188 2.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger ..............................................................................189 2.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes..........190 2.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........191 2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller ........................
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Si38-304 2.48 “UC” Address Duplication of Central Remote Controller ........................235 2.49 “UE” Malfunction of Transmission Between Central Remote Controller and Indoor Unit.....................................................................................236 2.50 “UF” Refrigerant System not Set, Incompatible Wiring/Piping ...............238 2.51 “UH” Malfunction of System, Refrigerant System Address Undefined...239 3. Troubleshooting (OP: Central Remote Controller) ...........................
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Si38-304 4.2 Option Lists (Outdoor Unit)...................................................................313 5. Piping Installation Point.......................................................................314 5.1 Piping Installation Point ........................................................................314 5.2 The Example of A Wrong Pattern.........................................................315 6. Selection of Pipe Size, Joints and Header ..........................................316 6.
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Introduction Si38-304 1. Introduction 1.1 Safety Cautions Cautions and Warnings Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “ Caution” items can also lead to serious accidents under some conditions if they are not followed.
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Si38-304 Introduction Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks. Be sure to turn off the power switch and unplug the power cable when cleaning the equipment.
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Introduction Si38-304 Warning Be sure to use the specified cable to connect between the indoor and outdoor units. Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals. Improper connections can cause excessive heat generation or fire. When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable.
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Si38-304 Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can cause the unit to fall, resulting in injury. Check the grounding, and repair it if the equipment is not properly grounded.
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Introduction 1.2 Si38-304 PREFACE Thank you for your continued patronage of Daikin products. This is the new service manual for Daikin's Year 2003 VRVII series Heat Pump / Cooling Only System. Daikin offers a wide range of models to respond to building and office air conditioning needs. We are confident that customers will be able to find the models that best suit their needs. This service manual contains information regarding the servicing of VRVII series Heat Pump / Cooling Only System. July.
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Si38-304 Part 1 General Information 1. Model Names of Indoor/Outdoor Units....................................................2 2. External Appearance...............................................................................3 2.1 Indoor Units ..............................................................................................3 2.2 Outdoor Units ...........................................................................................4 3. Combination of Outdoor Units........................
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Model Names of Indoor/Outdoor Units Si38-304 1.
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Si38-304 External Appearance 2. External Appearance 2.
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External Appearance 2.2 Si38-304 Outdoor Units RX (Y) 5M RX (Y) 8M,10M RX (Y) 12M,14M,16M 5HP 8,10HP 12,14,16HP RX (Y) 18M, 20M 4 RX (Y) 22M, 24M, 26M 18, 20HP 22, 24, 26HP RX (Y) 28M, 30M, 32M RX (Y) 34M, 36M 28, 30, 32HP 34, 36HP RX (Y) 38M, 40M, 42M RX (Y) 44M, 46M, 48M 38, 40, 42HP 44, 46, 48HP : http://splitoff.ru/tehn-doc.
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Si38-304 Combination of Outdoor Units 3. Combination of Outdoor Units Module System Number of Capacity units 5 8 10 12 5HP 1 O 8HP 1 O 10HP 1 O 12HP 1 O 14HP 1 16HP 1 18HP 2 O O 20HP 2 OO 22HP 2 O O 24HP 2 O 26HP 2 O 28HP 2 O 30HP 2 32HP 2 34HP 3 OO 36HP 3 OO 38HP 3 O O 40HP 3 O 42HP 3 O 44HP 3 O 46HP 3 48HP 3 ∗ Up to a maximum 48HP are realized by combining 8, 10, 12, 14 and 16HP. General Information 14 16 O O O O O O O OO O O O : http://splitoff.ru/tehn-doc.
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Capacity Range Si38-304 4. Capacity Range Outdoor Units Capacity Range 5HP 8HP 10HP 12HP 14HP 16HP 18HP 20HP 22HP 24HP 26HP RX (Y) 5M 8M 10M 12M 14M 16M 18M 20M 22M 24M 26M No of Indoor Units to be Connected 8 13 16 62.5 ~ 162.
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Si38-304 Part 2 Specifications 1. Specifications ..........................................................................................8 1.1 Outdoor Units ...........................................................................................8 1.2 Indoor Units ............................................................................................41 Specifications : http://splitoff.ru/tehn-doc.
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Specifications Si38-304 1. Specifications 1.1 Outdoor Units 1.1.1 Heat Pump 50Hz Model Name RXY5MY1(E) RXY8MY1(E) +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h 12,500 49,200 22,400 88,800 +2 Cooling Capacity (19.0°CWB) kW kW 14.4 14.0 26.0 25.2 kcal / h Btu / h 13,800 54,600 21,500 85,400 kW Y1 16.0 Ivory White (5Y7.5/1) 25.0 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) 1600×635×765 Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name RXY10MY1(E) RXY12MY1(E) +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h 25,000 98,700 30,000 118,000 +2 Cooling Capacity (19.0°CWB) kW kW 28.9 28.0 34.5 33.5 kcal / h Btu / h 27,000 108,000 30,000 118,000 kW Y1 31.5 Ivory White (5Y7.5/1) 34.7 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) 1600×930×765 Light Camel (2.5Y6.5/1.5) 1600×1240×765 Cross Fin Coil Hermetically Sealed Scroll Type Cross Fin Coil Hermetically Sealed Scroll Type 19.
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Specifications Si38-304 Model Name RXY14MY1(E) RXY16MY1(E) +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h 35,500 141,000 40,000 158,000 +2 Cooling Capacity (19.0°CWB) kW kW 41.2 40.0 46.4 45.0 kcal / h Btu / h 35,500 142,000 40,000 154,000 kW Y1 41.5 Ivory White (5Y7.5/1) 45.0 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) 1600×1240×765 Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RXY18MY1(E) RXY20MY1(E) Model Name (Independent Unit) RXY10MY1(E)+RXY10MY1(E) 50,000 kcal / h RXY8MY1(E)+RXY10MY1(E) 47,400 +1 Cooling Capacity (19.5°CWB) Btu / h kW 188,000 54.8 197,000 57.7 +2 Cooling Capacity (19.0°CWB) kW kcal / h 53.2 48,500 56.0 54,000 +3 Heating Capacity Btu / h kW 193,000 56.5 216,000 63.0 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RXY22MY1(E) RXY24MY1(E) Model Name (Independent Unit) RXY10MY1(E)+RXY14MY1(E) 60,500 kcal / h RXY10MY1(E)+RXY12MY1(E) 55,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 217,000 63.4 240,000 70.1 +2 Cooling Capacity (19.0°CWB) kW kcal / h 61.5 57,000 68.0 62,500 +3 Heating Capacity Btu / h kW 226,000 66.2 250,000 73.0 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RXY26MY1(E) RXY28MY1(E) Model Name (Independent Unit) RXY12MY1(E)+RXY16MY1(E) 70,000 kcal / h RXY10MY1(E)+RXY16MY1(E) 65,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 257,000 75.3 276,000 80.9 +2 Cooling Capacity (19.0°CWB) kW kcal / h 73.0 67,000 78.5 70,000 +3 Heating Capacity Btu / h kW 262,000 76.5 272,000 79.7 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RXY30MY1(E) RXY32MY1(E) Model Name (Independent Unit) RXY16MY1(E)+RXY16MY1(E) 80,000 kcal / h RXY14MY1(E)+RXY16MY1(E) 75,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 299,000 87.6 316,000 92.8 +2 Cooling Capacity (19.0°CWB) kW kcal / h 85.0 75,500 90.0 80,000 +3 Heating Capacity Btu / h kW 296,000 86.5 308,000 90.0 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RXY34MY1(E) RXY36MY1(E) Model Name (Independent Unit) RXY10MY1(E)+RXY10MY1(E)+RXY16MY1(E) 90,000 kcal / h RXY10MY1(E)+RXY10MY1(E)+RXY14MY1(E) 85,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 338,000 99.0 355,000 104 +2 Cooling Capacity (19.0°CWB) kW kcal / h 96.0 89,500 101 94,000 +3 Heating Capacity Btu / h kW 358,000 105 370,000 108 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.
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Specifications Si38-304 Model Name (Combination Unit) RXY38MY1(E) RXY40MY1(E) Model Name (Independent Unit) RXY10MY1(E)+RXY14MY1(E)+RXY16MY1(E) 101,000 kcal / h RXY10MY1(E)+RXY12MY1(E)+RXY16MY1(E) 95,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 375,000 110 398,000 116 +2 Cooling Capacity (19.0°CWB) kW kcal / h 107 97,000 113 103,000 +3 Heating Capacity Btu / h kW 380,000 111 404,000 118 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.
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Si38-304 Specifications Model Name (Combination Unit) RXY42MY1(E) RXY44MY1(E) Model Name (Independent Unit) RXY12MY1(E)+RXY16MY1(E)+RXY16MY1(E) 110,000 kcal / h RXY10MY1(E)+RXY16MY1(E)+RXY16MY1(E) 105,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 415,000 122 434,000 127 +2 Cooling Capacity (19.0°CWB) kW kcal / h 118 107,000 124 110,000 +3 Heating Capacity Btu / h kW 416,000 122 426,000 125 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.
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Specifications Si38-304 Model Name (Combination Unit) RXY46MY1(E) RXY48MY1(E) Model Name (Independent Unit) RXY16MY1(E)+RXY16MY1(E)+RXY16MY1(E) 120,000 kcal / h RXY14MY1(E)+RXY16MY1(E)+RXY16MY1(E) 116,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 457,000 134 474,000 139 +2 Cooling Capacity (19.0°CWB) kW kcal / h 130 116,000 135 120,000 +3 Heating Capacity Btu / h kW 450,000 132 462,000 135 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.
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Si38-304 Specifications 1.1.2 Heat Pump 60Hz kcal / h RXY5MYL(E) RXY5MTL(E) 12,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 49,200 14.4 78,900 23.1 +2 Cooling Capacity (19.0°CWB) kW kcal / h 14.0 13,800 22.4 21,500 +3 Heating Capacity Btu / h kW 54,600 16.0 85,400 25.0 YL, TL YLE, TLE Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) mm 1600×635×765 Cross Fin Coil 1600×930×765 Cross Fin Coil Hermetically Sealed Scroll Type 19.
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Specifications Si38-304 Model Name RXY10MYL(E) RXY10MTL(E) RXY12MYL(E) RXY12MTL(E) 25,000 98,700 30,000 118,000 +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h kW 28.9 34.5 +2 Cooling Capacity (19.0°CWB) kW 28.0 33.5 kcal / h Btu / h 27,000 108,000 30,000 118,000 kW YL, TL 31.5 Ivory White (5Y7.5/1) 34.7 Ivory White (5Y7.5/1) YLE, TLE mm Light Camel (2.5Y6.5/1.5) 1600×930×765 Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name RXY14MYL(E) RXY14MTL(E) RXY16MYL(E) RXY16MTL(E) 35,500 141,000 40,000 158,000 +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h kW 41.2 46.4 +2 Cooling Capacity (19.0°CWB) kW 40.0 45.0 kcal / h Btu / h 35,500 142,000 40,000 154,000 kW YL, TL 41.5 Ivory White (5Y7.5/1) 45.0 Ivory White (5Y7.5/1) YLE, TLE mm Light Camel (2.5Y6.5/1.5) 1600×1240×765 Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RXY18MYL(E) RXY18MTL(E) RXY20MYL(E) RXY20MTL(E) Model Name (Independent Unit) RXY10MYL(E)+RXY10MYL(E) RXY10MTL(E)+RXY10MTL(E) 50,000 kcal / h RXY8MYL(E)+RXY10MYL(E) RXY8MTL(E)+RXY10MTL(E) 45,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 178,000 52.0 197,000 57.7 +2 Cooling Capacity (19.0°CWB) kW kcal / h 50.4 48,500 56.0 54,000 +3 Heating Capacity Btu / h kW 193,000 56.5 216,000 63.0 YL, TL YLE, TLE Ivory White (5Y7.
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Si38-304 Specifications Model Name (Combination Unit) RXY22MYL(E) RXY22MTL(E) RXY24MYL(E) RXY24MTL(E) Model Name (Independent Unit) RXY10MYL(E)+RXY14MYL(E) RXY10MTL(E)+RXY14MTL(E) 60,500 kcal / h RXY10MYL(E)+RXY12MYL(E) RXY10MTL(E)+RXY12MTL(E) 55,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 217,000 63.4 240,000 70.1 +2 Cooling Capacity (19.0°CWB) kW kcal / h 61.5 57,000 68.0 62,500 +3 Heating Capacity Btu / h kW 226,000 66.2 250,000 73.0 YL, TL YLE, TLE Ivory White (5Y7.
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Specifications Si38-304 Model Name (Combination Unit) RXY26MYL(E) RXY26MTL(E) RXY28MYL(E) RXY28MTL(E) Model Name (Independent Unit) RXY12MYL(E)+RXY16MYL(E) RXY12MTL(E)+RXY16MTL(E) 70,000 kcal / h RXY10MYL(E)+RXY16MYL(E) RXY10MTL(E)+RXY16MTL(E) 65,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 257,000 75.3 276,000 80.9 +2 Cooling Capacity (19.0°CWB) kW kcal / h 73.0 67,000 78.5 70,000 +3 Heating Capacity Btu / h kW 262,000 76.5 272,000 79.7 YL, TL YLE, TLE Ivory White (5Y7.
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Si38-304 Specifications Model Name (Combination Unit) RXY30MYL(E) RXY30MTL(E) RXY32MYL(E) RXY32MTL(E) Model Name (Independent Unit) RXY16MYL(E)+RXY16MYL(E) RXY16MTL(E)+RXY16MTL(E) 80,000 kcal / h RXY14MYL(E)+RXY16MYL(E) RXY14MTL(E)+RXY16MTL(E) 75,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 299,000 87.6 316,000 92.8 +2 Cooling Capacity (19.0°CWB) kW kcal / h 85.0 75,500 90.0 80,000 +3 Heating Capacity Btu / h kW 296,000 86.5 308,000 90.0 YL, TL YLE, TLE Ivory White (5Y7.
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Specifications Si38-304 Model Name (Combination Unit) RXY34MYL(E) RXY34MTL(E) RXY36MYL(E) RXY36MTL(E) Model Name (Independent Unit) RXY10MYL(E)+RXY10MYL(E)+RXY16MYL(E) RXY10MTL(E)+RXY10MTL(E)+RXY16MTL(E) 90,000 kcal / h RXY10MYL(E)+RXY10MYL(E)+RXY14MYL(E) RXY10MTL(E)+RXY10MTL(E)+RXY14MTL(E) 85,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 338,000 99.0 355,000 104 +2 Cooling Capacity (19.0°CWB) kW kcal / h 96.
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Si38-304 Specifications Model Name (Combination Unit) RXY38MYL(E) RXY38MTL(E) RXY40MYL(E) RXY40MTL(E) Model Name (Independent Unit) RXY10MYL(E)+RXY14MYL(E)+RXY16MYL(E) RXY10MTL(E)+RXY14MTL(E)+RXY16MTL(E) 101,000 kcal / h RXY10MYL(E)+RXY12MYL(E)+RXY16MYL(E) RXY10MTL(E)+RXY12MTL(E)+RXY16MTL(E) 95,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 375,000 110 398,000 116 +2 Cooling Capacity (19.
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Specifications Si38-304 Model Name (Combination Unit) RXY42MYL(E) RXY42MTL(E) RXY44MYL(E) RXY44MTL(E) Model Name (Independent Unit) RXY12MYL(E)+RXY16MYL(E)+RXY16MYL(E) RXY12MTL(E)+RXY16MTL(E)+RXY16MTL(E) 110,000 kcal / h RXY10MYL(E)+RXY16MYL(E)+RXY16MYL(E) RXY10MTL(E)+RXY16MTL(E)+RXY16MTL(E) 105,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 415,000 122 434,000 127 +2 Cooling Capacity (19.
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Si38-304 Specifications Model Name (Combination Unit) RXY46MYL(E) RXY46MTL(E) RXY48MYL(E) RXY48MTL(E) Model Name (Independent Unit) RXY16MYL(E)+RXY16MYL(E)+RXY16MYL(E) RXY16MTL(E)+RXY16MTL(E)+RXY16MTL(E) 120,000 kcal / h RXY14MYL(E)+RXY16MYL(E)+RXY16MYL(E) RXY14MTL(E)+RXY16MTL(E)+RXY16MTL(E) 116,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 457,000 134 474,000 139 +2 Cooling Capacity (19.
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Specifications Si38-304 1.1.3 Cooling Only 50Hz Model Name kcal / h RX5MY1(E) 12,500 RX8MY1(E) 22,400 +1 Cooling Capacity (19.5°CWB) Btu / h kW 49,200 14.4 88,800 26.0 +2 Cooling Capacity (19.0°CWB) kW Y1 14.0 Ivory White (5Y7.5/1) 25.2 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) 1600×635×765 Light Camel (2.5Y6.5/1.5) 1600×930×765 Cross Fin Coil Hermetically Sealed Scroll Type Cross Fin Coil Hermetically Sealed Scroll Type 19.36 6480 19.36+14.
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Si38-304 Specifications Model Name RX10MY1(E) RX12MY1(E) +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h 25,000 98,700 30,000 118,000 +2 Cooling Capacity (19.0°CWB) kW kW 28.9 28.0 34.5 33.5 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) mm 1600×930×765 Cross Fin Coil 1600×1240×765 Cross Fin Coil Hermetically Sealed Scroll Type 19.36+14.68 Hermetically Sealed Scroll Type 19.36+14.
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Specifications Si38-304 Model Name RX14MY1(E) RX16MY1(E) +1 Cooling Capacity (19.5°CWB) kcal / h Btu / h 35,500 141,000 40,000 158,000 +2 Cooling Capacity (19.0°CWB) kW kW 41.2 40.0 46.4 45.0 Y1 Y1E Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) Ivory White (5Y7.5/1) Light Camel (2.5Y6.5/1.5) mm 1600×1240×765 Cross Fin Coil 1600×1240×765 Cross Fin Coil Hermetically Sealed Scroll Type 19.36+14.68+14.68 Hermetically Sealed Scroll Type 19.36+14.68+14.
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Si38-304 Specifications Model Name (Combination Unit) RX18MY1(E) RX20MY1(E) Model Name (Independent Unit) RX10MY1(E)+RX10MY1(E) 50,000 kcal / h RX8MY1(E)+RX10MY1(E) 47,400 +1 Cooling Capacity (19.5°CWB) Btu / h kW 188,000 54.8 197,000 57.7 +2 Cooling Capacity (19.0°CWB) kW Y1 53.2 Ivory White (5Y7.5/1) 56.0 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×930×765) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RX22MY1(E) RX24MY1(E) Model Name (Independent Unit) RX10MY1(E)+RX14MY1(E) 60,500 kcal / h RX10MY1(E)+RX12MY1(E) 55,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 217,000 63.4 240,000 70.1 +2 Cooling Capacity (19.0°CWB) kW Y1 61.5 Ivory White (5Y7.5/1) 68.0 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RX26MY1(E) RX28MY1(E) Model Name (Independent Unit) RX12MY1(E)+RX16MY1(E) 70,000 kcal / h RX10MY1(E)+RX16MY1(E) 65,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 257,000 75.3 276,000 80.9 +2 Cooling Capacity (19.0°CWB) kW Y1 73.0 Ivory White (5Y7.5/1) 78.5 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RX30MY1(E) RX32MY1(E) Model Name (Independent Unit) RX16MY1(E)+RX16MY1(E) 80,000 kcal / h RX14MY1(E)+RX16MY1(E) 75,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 299,000 87.6 316,000 92.8 +2 Cooling Capacity (19.0°CWB) kW Y1 85.0 Ivory White (5Y7.5/1) 90.0 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×1240×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RX34MY1(E) RX36MY1(E) Model Name (Independent Unit) RX10MY1(E)+RX10MY1(E)+RX16MY1(E) 90,000 kcal / h RX10MY1(E)+RX10MY1(E)+RX14MY1(E) 85,500 +1 Cooling Capacity (19.5°CWB) Btu / h kW 338,000 99.0 355,000 104 +2 Cooling Capacity (19.0°CWB) kW Y1 96.0 Ivory White (5Y7.5/1) 101 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×930×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RX38MY1(E) RX40MY1(E) Model Name (Independent Unit) RX10MY1(E)+RX14MY1(E)+RX16MY1(E) 101,000 kcal / h RX10MY1(E)+RX12MY1(E)+RX16MY1(E) 95,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 375,000 110 398,000 116 +2 Cooling Capacity (19.0°CWB) kW Y1 107 Ivory White (5Y7.5/1) 113 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×1240×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Si38-304 Specifications Model Name (Combination Unit) RX42MY1(E) RX44MY1(E) Model Name (Independent Unit) RX12MY1(E)+RX16MY1(E)+RX16MY1(E) 110,000 kcal / h RX10MY1(E)+RX16MY1(E)+RX16MY1(E) 105,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 415,000 122 434,000 127 +2 Cooling Capacity (19.0°CWB) kW Y1 118 Ivory White (5Y7.5/1) 124 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×930×765)+(1600×1240×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Specifications Si38-304 Model Name (Combination Unit) RX46MY1(E) RX48MY1(E) Model Name (Independent Unit) RX16MY1(E)+RX16MY1(E)+RX16MY1(E) 120,000 kcal / h RX14MY1(E)+RX16MY1(E)+RX16MY1(E) 116,000 +1 Cooling Capacity (19.5°CWB) Btu / h kW 457,000 134 474,000 139 +2 Cooling Capacity (19.0°CWB) kW Y1 130 Ivory White (5Y7.5/1) 135 Ivory White (5Y7.5/1) Y1E mm Light Camel (2.5Y6.5/1.5) (1600×1240×765)+(1600×1240×765)+(1600×1240×765) Light Camel (2.5Y6.5/1.
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Si38-304 1.2 Specifications Indoor Units Ceiling Mounted Cassette Type (Double-flow) Model FXC20LVE FXC25LVE FXC32LVE kcal/h 2,000 2,500 3,150 4,000 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 15,900 kW 2.3 2.9 3.7 4.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 4.5 kcal/h 2,200 2,800 3,400 4,300 Btu/h 8,500 10,900 13,600 17,000 +3 Heating Capacity kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 3.2 4.0 5.
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Specifications Si38-304 Ceiling Mounted Cassette Type (Double-flow) Model +1 Cooling Capacity (19.5°CWB) +2 Cooling Capacity (19.0°CWB) +3 Heating Capacity FXC50LVE FXC63LVE FXC80LVE kcal/h 5,000 6,300 8,000 12,500 Btu/h 19,900 25,000 31,800 49,600 kW 5.8 7.3 9.3 14.5 kW 5.6 7.1 9.0 14.0 kcal/h 5,400 6,900 8,600 13,800 Btu/h 21,500 27,300 34,100 54,600 kW 6.3 8.0 10.0 16.
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Si38-304 Specifications Ceiling Mounted Cassette Type (Multi-flow) Model FXF25LVE FXF32LVE FXF40LVE kcal/h 2,500 3,150 4,000 5,000 +1 Cooling Capacity (19.5°CWB) Btu/h 9,900 12,500 15,900 19,900 kW 2.9 3.7 4.7 5.8 +2 Cooling Capacity (19.0°CWB) kW 2.8 3.6 4.5 5.6 +3 Heating Capacity kcal/h 2,800 3,400 4,300 5,400 Btu/h 10,900 13,600 17,000 21,500 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 3.2 4.0 5.0 6.
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Specifications Si38-304 Ceiling Mounted Cassette Type (Multi-flow) Model +1 Cooling Capacity (19.5°CWB) +2 Cooling Capacity (19.0°CWB) +3 Heating Capacity FXF63LVE FXF80LVE FXF100LVE kcal/h 6,300 8,000 10,000 12,500 Btu/h 25,000 31,800 39,700 49,600 kW 7.3 9.3 11.6 14.5 kW 7.1 9.0 11.2 14.0 kcal/h 6,900 8,600 10,800 13,800 Btu/h 27,300 34,100 42,700 54,600 kW 8.0 10.0 12.5 16.
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Si38-304 Specifications Ceiling Mounted Cassette Corner Type Model FXK25LVE FXK32LVE FXK40LVE kcal/h 2,500 3,150 4,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 9,900 12,500 15,900 25,000 kW 2.9 3.7 4.7 7.3 +2 Cooling Capacity (19.0°CWB) kW 2.8 3.6 4.5 7.1 +3 Heating Capacity kcal/h 2,800 3,400 4,300 6,900 Btu/h 10,900 13,600 17,000 27,300 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXK63LVE 3.2 4.0 5.0 8.
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Specifications Si38-304 Ceiling Mounted Low Silhouette Duct Type +6 Model FXYD20KAVE FXYD25KAVE kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 2.5 3.2 4.
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Si38-304 Specifications Ceiling Mounted Low Silhouette Duct Type +6 Model FXYD40KAVE FXYD50KAVE kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 5.0 6.3 8.
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Specifications Si38-304 Ceiling Mounted Built-in Type Model FXS20LVE FXS25LVE kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXS32LVE 2.5 3.2 4.
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Si38-304 Specifications Ceiling Mounted Built-in Type Model FXS40LVE FXS50LVE kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 5.0 6.3 8.
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Specifications Si38-304 Ceiling Mounted Built-in Type Model +1 Cooling Capacity (19.5°CWB) +2 Cooling Capacity (19.0°CWB) +3 Heating Capacity FXS80LVE FXS100LVE kcal/h 8,000 10,000 12,500 Btu/h 31,800 39,700 49,600 kW 9.3 11.6 14.5 kW 9.0 11.2 14.0 kcal/h 8,600 10,800 13,800 Btu/h 34,100 42,700 54,600 kW 10.0 12.5 16.
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Si38-304 Specifications Ceiling Mounted Built-in (Rear Suction Type) Model FXYB20KV1 FXYB25KV1 kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 2.5 3.2 4.
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Specifications Si38-304 Ceiling Mounted Built-in (Rear Suction Type) Model FXYB40KV1 FXYB50KV1 kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) 5.0 6.3 8.
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Si38-304 Specifications Ceiling Mounted Built-in (Rear Suction Type) Model +1 Cooling Capacity (19.5°CWB) +2 Cooling Capacity (19.5°CWB) +3 Heating Capacity FXYB80KV1 FXYB100KV1 kcal/h 8,000 10,000 12,500 Btu/h 31,800 39,700 49,600 kW 9.3 11.6 14.5 kW 9.0 11.2 14.0 kcal/h 8,600 10,800 13,800 Btu/h 34,100 42,700 54,600 kW 10.0 12.5 16.
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Specifications Si38-304 Ceiling Mounted Duct Type Model FXM40LVE FXM50LVE FXM63LVE kcal/h 4,000 5,000 6,300 8,000 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 31,800 kW 4.7 5.8 7.3 9.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 9.0 +3 Heating Capacity kcal/h 4,300 5,400 6,900 8,600 Btu/h 17,000 21,500 27,300 34,100 kW Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXM80LVE 5.0 6.3 8.0 10.
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Si38-304 Specifications Ceiling Mounted Duct Type Model +1 Cooling Capacity (19.5°CWB) +2 Cooling Capacity (19.0°CWB) +3 Heating Capacity FXM100LVE FXM125LVE FXM200LVE kcal/h 10,000 12,500 20,000 25,000 Btu/h 39,700 49,600 79,000 99,000 kW 11.6 14.5 23.0 28.8 kW 11.2 14.0 22.4 28.0 kcal/h 10,800 13,800 21,500 27,000 Btu/h 42,700 54,600 85,300 107,500 kW 12.5 16.0 25.0 31.
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Specifications Si38-304 Ceiling Suspended Type Model FXH32LVE FXH63LVE kcal/h 3,150 6,300 10,000 +1 Cooling Capacity (19.5°CWB) Btu/h 12,500 25,000 39,700 kW 3.7 7.3 11.6 +2 Cooling Capacity (19.0°CWB) kW 3.6 7.1 11.2 kcal/h 3,400 6,900 10,800 Btu/h 13,600 27,300 42,700 kW 4.0 8.0 12.5 White (10Y9/0.5) White (10Y9/0.5) White (10Y9/0.
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Si38-304 Specifications Wall Mounted Type Model FXA20LVE FXA25LVE kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) Fan 2.5 3.2 4.0 White (10Y9/0.5) White (10Y9/0.5) White (10Y9/0.
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Specifications Si38-304 Wall Mounted Type Model FXA40LVE FXA50LVE kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) Fan 5.0 6.3 8.0 White (10Y9/0.5) White (10Y9/0.5) White (10Y9/0.
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Si38-304 Specifications Floor Standing Type Model FXL20LVE FXL25LVE kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) 2.5 3.2 4.0 Ivory White (5Y7.5/1) Ivory White (5Y7.5/1) Ivory White (5Y7.
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Specifications Si38-304 Floor Standing Type Model FXL40LVE FXL50LVE kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) 5.0 6.3 8.0 Ivory White (5Y7.5/1) Ivory White (5Y7.5/1) Ivory White (5Y7.
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Si38-304 Specifications Concealed Floor Standing Type Model FXN20LVE FXN25LVE kcal/h 2,000 2,500 3,150 +1 Cooling Capacity (19.5°CWB) Btu/h 7,900 9,900 12,500 kW 2.3 2.9 3.7 +2 Cooling Capacity (19.0°CWB) kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 +3 Heating Capacity kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) 2.5 3.2 4.
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Specifications Si38-304 Concealed Floor Standing Type Model FXN40LVE FXN50LVE kcal/h 4,000 5,000 6,300 +1 Cooling Capacity (19.5°CWB) Btu/h 15,900 19,900 25,000 kW 4.7 5.8 7.3 +2 Cooling Capacity (19.0°CWB) kW 4.5 5.6 7.1 +3 Heating Capacity kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) 5.0 6.3 8.
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Si38-304 Part 3 Refrigerant Circuit 1. Refrigerant Circuit .................................................................................64 1.1 RXY5M ...................................................................................................64 1.2 RXY8, 10, 12M .......................................................................................66 1.3 RXY14, 16M ...........................................................................................68 2. Functional Parts Layout ...........
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Refrigerant Circuit Si38-304 1. Refrigerant Circuit 1.1 RXY5M No. in refrigerant Symbol system diagram Major Function A M1C Inverter compressor (INV) Inverter compressor is operated on frequencies between 52 Hz and 210 Hz by using the inverter. The number of operating steps is as follows when Inverter compressor is operated. RXY5M : 20 steps D M1F Inverter fan Since the system is of air heat exchanging type, the fan is operated at 8-step rotation speed by using the inverter.
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Si38-304 Refrigerant Circuit RXY5M Refirgerant Circuit : http://splitoff.ru/tehn-doc.
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Refrigerant Circuit 1.2 Si38-304 RXY8, 10, 12M No. in refrigerant Symbol system diagram 66 Name Major Function A M1C Inverter compressor (INV) Inverter compressor is operated on frequencies between 52 Hz and 210 Hz by using the inverter, while Standard compressor is operated with commercial power supply only. The number of operating steps is as follows when Inverter compressor is operated in combination with Standard compressor.
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Si38-304 Refrigerant Circuit RXY8, 10, 12M J S U L D E F I G M K T N V Q P B A O Refirgerant Circuit H : http://splitoff.ru/tehn-doc.
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Refrigerant Circuit 1.3 Si38-304 RXY14, 16M No. in refrigerant Symbol system diagram Major Function A M1C Inverter compressor (INV) B M2C Standard compressor 1 (STD1) C M3C Standard compressor 1 (STD2) D M1F Inverter fan Since the system is of air heat exchanging type, the fan is operated at 8-step rotation speed by using the inverter.
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Si38-304 Refrigerant Circuit RXY14, 16M J S U L D E F I M G K T N V Q P R A B C O Refirgerant Circuit H : http://splitoff.ru/tehn-doc.
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Functional Parts Layout Si38-304 2. Functional Parts Layout 2.1 RXY5M Plan Y4S Solenoid valve (Injection) High pressure switch (High pressure protection INV) S1PH Front View 70 : http://splitoff.ru/tehn-doc.
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Si38-304 2.2 Functional Parts Layout RXY8, 10, 12M Plan Front View Refirgerant Circuit : http://splitoff.ru/tehn-doc.
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Functional Parts Layout 2.3 Si38-304 RXY14, 16M Plan Front View 72 : http://splitoff.ru/tehn-doc.
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Si38-304 Refrigerant Flow for Each Operation Mode 3.
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Refrigerant Flow for Each Operation Mode Si38-304 Cooling Oil Return Operation Indoor unit operation Fan ON " ON " Fan OFF " OFF " Fan OFF " ON " Heat exchanger Heat exchanger Heat exchanger Fan Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure EXV : Normal control Filter Filter Indoor unit Thermostat "ON" EXV : 200 pls Filter Filter Indoor unit EXV : 200 pls Filter Filter Indoor unit Thermostat "OFF" 4D041235 74 : http://spl
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Si38-304 Refrigerant Flow for Each Operation Mode Heating Oil Return & Defrost Operation Indoor unit operation Fan OFF " ON " Heat exchanger Fan OFF " OFF " Heat exchanger Fan OFF " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV : Initial 448pls, then max. 2000pls depends on suction SH Filter Filter Indoor unit Thermostat "ON" Fan EXV : Initial 448pls, then max.
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Refrigerant Flow for Each Operation Mode Si38-304 Heating Operation Indoor unit operation Fan ON Fan LL " ON " Heat exchanger Fan OFF " OFF " Heat exchanger " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV : Normal control Filter Filter Indoor unit Thermostat "ON" Fan Fan EXV : 200~700pls EXV : 200~700pls Filter Filter Indoor unit Filter Filter Indoor unit Thermostat "OFF" 4D041235 76 : http://splitoff.
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Si38-304 Refrigerant Flow for Each Operation Mode RXY8, 10, 12M Cooling Operation Indoor unit operation Fan ON Fan ON " ON " Fan OFF Heat exchanger " OFF " Heat exchanger " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan Fan Electronic expansion valve Filter Filter Indoor unit Electronic expansion valve Filter Filter Indoor unit Thermostat "ON" Fan Electronic expansion valve Filter Filter Indoor unit Thermostat "
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Refrigerant Flow for Each Operation Mode Si38-304 Cooling Oil Return Indoor unit operation Fan ON " ON " Fan OFF " OFF " Fan OFF " ON " Heat exchanger Heat exchanger Heat exchanger Fan Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure EXV : 200 pls EXV : Normal control Filter Filter Indoor unit Filter Filter Indoor unit Thermostat "ON" EXV : 200 pls Filter Filter Indoor unit Thermostat "OFF" S Oil equalizing pipe to other ou
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Si38-304 Refrigerant Flow for Each Operation Mode Heating Oil Return & Defrost Indoor unit operation Fan OFF " ON " Fan OFF Heat exchanger " OFF " Heat exchanger Fan OFF " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV : Initial 448pls, then max. 2000pls depends on suction SH Filter Filter Indoor unit Fan EXV : Initial 448pls, then max.
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Refrigerant Flow for Each Operation Mode Si38-304 Heating Operation Indoor unit operation Fan ON Fan LL Fan OFF Heat exchanger Heat exchanger Heat exchanger Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV: Normal control Filter Filter Indoor unit EXV: 200~700pls Filter Filter Indoor unit Thermostat "ON" EXV: 200~700pls Filter Filter Indoor unit Thermostat "OFF" S Oil equalizing pipe to other outdoor units S Liquid pi
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Si38-304 Refrigerant Flow for Each Operation Mode RXY14, 16M Cooling Operation Indoor unit operation Fan ON Fan ON " ON " Fan OFF Heat exchanger " OFF " Heat exchanger " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan Fan Electronic expansion valve Filter Filter Indoor unit Electronic expansion valve Filter Filter Indoor unit Thermostat "ON" Fan Electronic expansion valve Filter Filter Indoor unit Thermostat "OFF
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Refrigerant Flow for Each Operation Mode Si38-304 Cooling Oil Return Operation Indoor unit operation Fan ON " ON " Fan OFF " OFF " Fan OFF " ON " Heat exchanger Heat exchanger Heat exchanger Fan Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure EXV : Normal control Filter Filter Indoor unit EXV : 200 pls Filter Filter Indoor unit Thermostat "ON" EXV : 200 pls Filter Filter Indoor unit Thermostat "OFF" S Oil equalizing pipe to
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Si38-304 Refrigerant Flow for Each Operation Mode Heating Oil Return & Defrost Operation Indoor unit operation Fan OFF " ON " Fan OFF Heat exchanger " OFF " Heat exchanger Fan OFF " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV : Initial 448pls, then max. 2000pls depends on suction SH Filter Filter Indoor unit Fan EXV : Initial 448pls, then max.
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Refrigerant Flow for Each Operation Mode Si38-304 Heating Operation Indoor unit operation Fan ON Fan LL Fan OFF Fan OFF Heat exchanger Heat exchanger Heat exchanger Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan EXV: Normal control Filter Filter Indoor unit EXV: 200~700pls Filter Filter Indoor unit Thermostat "ON" EXV: 200~700pls Filter Filter Indoor unit Thermostat "OFF" S Oil equalizing pipe to other outdoor units S L
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Si38-304 Part 4 Function 1. Operation Mode ....................................................................................86 2. Basic Control.........................................................................................87 2.1 2.2 2.3 2.4 Normal Operation ...................................................................................87 Compressor PI Control...........................................................................88 Electronic Expansion Valve PI Control.................
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Operation Mode Si38-304 1.
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Si38-304 Basic Control 2. Basic Control 2.
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Basic Control 2.2 Si38-304 Compressor PI Control Compressor PI Control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance. [Cooling operation] Controls compressor capacity to adjust Te to achieve target value (TeS).
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Si38-304 Basic Control Compressor Operating Priority Each compressor operates in the following order of priority. In the case of multi-outdoor-unit system, each compressor operates in any of Pattern 1 through Pattern 3 according to the rotation of outdoor units. Pattern 1 Pattern 2 RX(Y)5M INV: Inverter compressor STD1: Standard compressor 1 STD2: Standard compressor 2 Pattern 3 RX(Y)8,10,12M RX(Y)14,16M No. 1 No. 1 No. 2 No. 1 No. 2 No.
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Basic Control RX(Y)5M STEP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Si38-304 RX(Y)8,10,12M INV 52Hz 57Hz 62Hz 68Hz 74Hz 81Hz 88Hz 96Hz 104Hz 110Hz 116Hz 124Hz 133Hz 143Hz 158Hz 165Hz 177Hz 189Hz 202Hz 210Hz STEP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 INV 52Hz 57Hz 62Hz 68Hz 74Hz 81Hz 88Hz 96Hz 104Hz 110Hz 116Hz 124Hz 133Hz 143Hz 158Hz 165Hz 177Hz 189Hz 202Hz 210Hz 52Hz 74Hz 96Hz 116Hz 133Hz 158Hz 177Hz 202Hz 210Hz RX(Y)18,20,22M STEP 1 2 3 4 5 6 7 8 9 1
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Si38-304 Basic Control RX(Y)30,32M STEP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Master unit INV 52Hz 57Hz 62Hz 68Hz 74Hz 81Hz 88Hz 96Hz 104Hz 110Hz 116Hz 124Hz 133Hz 143Hz 158Hz 165Hz 177Hz 189Hz 202Hz 210Hz 52Hz 74Hz 96Hz 116Hz 133Hz 158Hz 177Hz 202Hz 210Hz 52Hz 88Hz 124Hz 158Hz 189Hz 210Hz 52Hz 88Hz 124Hz 158Hz 189Hz 52Hz 104Hz 143Hz 189Hz 52Hz 104Hz 143Hz 189Hz RX(Y)34,36,38M Slave unit INV OFF OFF OFF OFF
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Basic Control Si38-304 RX(Y)40,42,44M STEP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Master unit INV Slave unit1 INV Slave unit2 INV 52Hz OFF OFF 57Hz OFF OFF 62Hz OFF OFF 68Hz OFF OFF 74Hz OFF OFF 81Hz OFF OFF 88Hz OFF OFF 96Hz OFF OFF 104Hz OFF OFF 110Hz OFF OFF 116Hz OFF OFF 124Hz OFF OFF 133Hz OFF OFF 143Hz OFF OFF 158Hz OFF OFF 165Hz OFF OFF 177Hz OFF OFF 189Hz OFF OFF 202Hz OFF
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Si38-304 Basic Control RX(Y)46,48M STEP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 • • • Master unit INV 52Hz 57Hz 62Hz 68Hz 74Hz 81Hz 88Hz 96Hz 104Hz 110Hz 116Hz 124Hz 133Hz 143Hz 158Hz 165Hz 177Hz 189Hz 202Hz 210Hz 52Hz 74Hz 96Hz 116Hz 133Hz 158Hz 177Hz 202Hz 210Hz 52Hz 88Hz 124Hz 158Hz 189Hz 210Hz 52Hz 88Hz 124Hz 158Hz 189Hz 210Hz 52Hz 104Hz 143Hz 189Hz 210Hz 52Hz 104H
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Basic Control 2.3 Si38-304 Electronic Expansion Valve PI Control Main Motorized Valve EV1 Control Carries out the motorized valve (Y1E) PI control to maintain the evaporator outlet superheated degree (SH) at constant during heating operation to make maximum use of the outdoor unit heat exchanger (evaporator).
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Si38-304 2.4 Basic Control Cooling Operation Fan Control In cooling operation with low outdoor air temperature, this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan. STEP9 Pc: HP pressure sensor detection value Pc>2.01MPa Pc<1.72MPa Pc>2.15MPa STEP8 Pc<1.18MPa Pc>1.81MPa Fan Steps STEP7 RX(Y)5M Pc<1.18MPa Pc>1.81MPa STEP6 Pc<1.18MPa Pc>1.81MPa STEP5 Pc<1.
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Special Control Si38-304 3. Special Control 3.1 Startup Control 3.1.
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Si38-304 3.2 Special Control Oil Return Operation 3.2.1 Oil Return Operation in Cooling Operation Outdoor unit actuator Compressor Oil return preparation operation Upper limit control Oil return operation 124 Hz + ON + OFF Post-oil-return operation 124 Hz + ON + OFF Outdoor unit fan Fan control Fan control Fan control Four way valve OFF OFF OFF Main motorized valve (EV1) ∗Value in ( ) are for RX(Y)5M only.
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Special Control Si38-304 3.2.2 Oil Return Operation in Heating Operation (H / P model only) Outdoor Unit Actuator Oil return preparation operation Oil return operation Post-oil-return operation Compressor Upper limit control 124 Hz + ON + ON 2-step increase from (74 Hz + OFF + OFF) to (Pc - Pe>0.4 MPa) time Outdoor unit fan STEP8 or STEP9 OFF STEP9 Four way valve ON OFF ON Main motorized valve (EV1) ∗Value in ( ) are for RXY5M only.
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Si38-304 3.3 Special Control Defrosting Operation (H / P model only) Defrost preparation operation Outdoor unit actuator Defrost operation Post Defrost operation 2-step increase from (74 Hz + OFF + OFF) to (Pc - Pe>0.4 MPa) Compressor Upper limit control 143 Hz + ON + ON Outdoor unit fan STEP8 or STEP9 OFF Four way valve ON OFF ON Main motorized valve (EV1) ∗Value in ( ) are for RX(Y)5M only.
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Special Control 3.4 Si38-304 Pump-down Residual Operation 3.4.1 Pump-down Residual Operation in Cooling Operation Actuator Master unit operation Slave unit operation Compressor 210 Hz + OFF + OFF OFF Outdoor unit fan Fan control OFF Four way valve OFF OFF Main motorized valve (EV1) ∗Value in ( ) are for RX(Y)5M only.
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Si38-304 3.5 Special Control Restart Standby Actuator Operation Remarks Compressor OFF  Outdoor unit fan Ta>30°C: STEP5 Ta≤30°C: OFF  Four way valve Holds ON  Main motorized valve (EV1) 0 pls  Subcooling motorized valve (EV2) 0 pls  OFF In the case of RX(Y)5M , this valve turns ON. ON In the case of slave units, this valve turns OFF.
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Special Control 3.6 Si38-304 Stopping Operation 3.6.
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Si38-304 Special Control 3.6.2 Stopping Operation of Slave Units During Master Unit is in Operation With Multi-Outdoor-Unit System In cooling operation: The system operates in Mode A or Mode B listed in the table below.
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Special Control 3.7 Si38-304 Pressure Equalization prior to Startup Actuator Operation Remarks Compressor OFF  Outdoor unit fan Cooling:OFF Heating:STEP 4  Four way valve Holds ON  Main motorized valve (EV1) 0 pls  Subcooling motorized valve (EV2) 0 pls  Hot gas bypass valve (SVP) OFF In the case of RX(Y)5M, this valve turns ON.
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Si38-304 Protection Control 4. Protection Control 4.1 High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure. [In cooling operation] + In the case of multi-outdoor-unit system, each outdoor unit performs this control individually in the following sequence.
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Protection Control 4.2 Si38-304 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. [In cooling operation] + In the case of multi-outdoor-unit system, the entire system performs this control in the following sequence. Low pressure not limited Pe<0.16MPa Pe: LP pressure sensor detection value for master unit Pe>0.20MPa Low pressure limited All STD compressors stop. Pe<0.
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Si38-304 4.3 Protection Control Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature. + Each compressor performs the discharge pipe temperature protection control individually in the following sequence. [INV compressor] Discharge pipe temp.
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Protection Control 4.4 Si38-304 Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction, or transient inverter overcurrent, and fin temperature increase. + In the case of multi-outdoor-unit system, each INV compressor performs these controls in the following sequence.
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Si38-304 4.5 Protection Control STD Compressor Overload Protection This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of STD compressor such as locking. STD compressor ON Demand to operate. CT detection current value>A for more than 3 sec. 200- V unit 400- V unit A 28.8A 15.0A STD compressor OFF for 30 min. When occurring 3 times within 90 minutes, the malfunction code “ E6 ”is output. 4.
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Other Control Si38-304 5. Other Control 5.1 Outdoor Unit Rotation In the case of multi-outdoor-unit system, this outdoor unit rotation is used to prevent the compressor from burning out due to unbalanced oil level between outdoor units. [Details of outdoor unit rotation] In the case of multi-outdoor-unit system, each outdoor unit is given an operating priority for the control. Outdoor unit rotation makes it possible to change the operating priority of outdoor units.
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Si38-304 5.2 Other Control Emergency Operation If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit from operating to perform emergency operation only with the operative compressor or outdoor unit. Caution "For making a compressor unable to operate due to malfunction, etc., be sure to conduct the work with emergency operation setting. Never execute work such as disconnection of the power cable from magnet contactor.
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Other Control Si38-304 • With RX(Y)14M and 16M, if INV compressor is inhibited from operating, only 1 STD compressor can operate for reasons of oil equalization. • With RX(Y)14M and 16M, STD1 compressor cannot be inhibited from operating for reasons of oil equalization. • When 1 outdoor unit is installed (with RX (Y) 8M to 16M), automatic backup operation cannot be performed. 5.2.
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Si38-304 Other Control • To inhibit the slave unit 2 from operating → Set setting mode 2 from No. 40 to No. 2. (Procedure) (1) Press and hold the MODE button (BS1) for 5 sec. or more. (2) Press the SET button (BS2) 40 times. (3) Press the RETURN button (BS3) once. (4) Press the SET button (BS2) once. (5) Press the RETURN button (BS3) twice. (6) Press the MODE button (BS1) once.
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Outline of Control (Indoor Unit) Si38-304 6. Outline of Control (Indoor Unit) 6.1 Drain Pump Control 1. The drain pump is controlled by the ON/OFF buttons (4 button (1) - (4) given in the figure below). 6.1.1 When the Float Switch is Tripped While the Cooling Thermostat is ON: ∗ 1. The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation. 6.1.
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Si38-304 Outline of Control (Indoor Unit) 6.1.3 When the Float Switch is Tripped During Heating Operation: During heating operation, if the float switch is not reset even after the 5 minutes operation, 5 seconds stop, 5 minutes operation cycle ends, operation continues until the switch is reset. 6.1.
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Outline of Control (Indoor Unit) 6.2 Si38-304 Louver Control for Preventing Ceiling Dirt We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled. (This feature is available on double flow, multiflow and corner types.
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Si38-304 6.3 Outline of Control (Indoor Unit) Thermostat Sensor in Remote Controller Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit. (This is however limited to when the field setting for the thermostat sensor in remote controller is set to “Use.
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Outline of Control (Indoor Unit) Heating Si38-304 When heating, the hot air rises to the top of the room, resulting in the temperature being lower near the floor where the occupants are. When controlling by body thermostat sensor only, the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature.
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Si38-304 6.4 Outline of Control (Indoor Unit) Freeze Prevention Freeze Prevention by Off Cycle (Indoor Unit) When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit heat exchanger drops too low, the unit enters freeze prevention operation in accordance with the following conditions, and is also set in accordance with the conditions given below. Conditions for starting freeze prevention: Temperature is -1°C or less for total of 40 min.
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Outline of Control (Indoor Unit) 120 Si38-304 : http://splitoff.ru/tehn-doc.
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Si38-304 Part 5 Test Operation 1. Test Operation ....................................................................................122 1.1 Procedure and Outline .........................................................................122 1.2 Operation When Power is Turned On ..................................................125 2. Outdoor Unit PC Board Layout ...........................................................126 3. Field Setting ..................................................................
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Test Operation Si38-304 1. Test Operation 1.1 Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.1.1 Check work prior to turn power supply on Check the below items. 2Power wiring 2Control transmission wiring between units 2Earth wire Check on refrigerant piping ¡ Is the wiring performed as specified? ¡ Are the designated wires used? ¡ Is the grounding work completed? Use a 500V megger tester to measure the insulation.
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Si38-304 Test Operation 1.1.3 Check Operation * During check operation, mount front panel to avoid the misjudging. * Check operation is mandatory for normal unit operation. (When the check operation is not executed, alarm code "U3" will be displayed.) Press and hold the TEST OPERATION button (BS4) on outdoor unit PC board for 5 seconds. ¡ The test operation is started automatically.  The following judgements are conducted within 15 minutes.
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Test Operation Si38-304 1.1.4 Confirmation on normal operation • Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 25°C or higher, the unit can not be operated with heating mode. See the instruction manual attached.) Confirm that the indoor/outdoor units can be operated normally.
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Si38-304 1.2 Test Operation Operation When Power is Turned On 1.2.1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address (indoor-outdoor address, etc.). Status Outdoor unit Test lamp H2P .... Blinks Can also be set during operation described above. Indoor unit If ON button is pushed during operation described above, the “UH” malfunction indicator blinks. (Returns to normal when automatic setting is complete.) 1.2.
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Outdoor Unit PC Board Layout Si38-304 2.
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Si38-304 Field Setting 3. Field Setting 3.1 Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller. At the time of installation or after service inspection / repair, make the local setting in accordance with the following description. Wrong setting may cause malfunction. (When optional accessory is mounted on the indoor unit, setting for the indoor unit may be required to change. Refer to information in the option handbook.) 3.1.
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Field Setting Si38-304 3.1.2 Wireless Remote Controller - Indoor Unit BRC7C type 1. When in the normal mode, push the button for 4 seconds or more, and operation then enters the “field set mode.” 2. Select the desired “mode No.” with the button. 3. Pushing the button, select the first code No. 4. Pushing the button, select the second code No. 5. Push the timer button and check the settings. 6. Push the button to return to the normal mode.
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Si38-304 Field Setting 3.1.3 Simplified Remote Controller BRC2A51 Group No. setting by simplified remote controller. 1. Remove the cover of remote controller. 2. While in normal mode, press the [BS6] BUTTON (field set) to enter the FIELD SET MODE. 3. Select the mode No. [00] with [BS2] BUTTON (temperature setting V) and [BS3] BUTTON (temperature setting W). 4. Select the group No. with [BS9] BUTTON (set A) and [BS10] BUTTON (set B). (Group Nos. increase in the order of 1-00, 1-01......1-15, 2-00,.....
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Field Setting Si38-304 3.1.4 Setting Contents and Code No. – VRV Unit VRV Mode Setting Setting Contents system No. Switch No. indoor Note 2 unit 0 Filter contamination heavy/ settings 10(20) light (Setting for display time to clean air filter) (Sets display time to clean air filter to half when there is heavy filter contamination.) 12(22) 13(23) 15(25) Super long life filter Light 02 Approx. 10,000 hrs. 03 04 — — Super long life filter — — Heavy Approx. 5,000 hrs.
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Si38-304 Field Setting 3.1.
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Field Setting Si38-304 3.1.6 Detailed Explanation of Setting Modes Filter Sign Setting If switching the filter sign ON time, set as given in the table below. Set Time Filter Specs. Standard Long Life Ultra Long Life Filter 200 hrs. 100 hrs. 2,500 hrs. 1,250 hrs. 10,000 hrs. 5,000 hrs. Setting Contamination Light Contamination Heavy Ultra-Long-Life Filter Sign Setting When a Ultra-long-life filter is installed, the filter sign timer setting must be changed. Setting Table Mode No.
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Si38-304 Field Setting Air Flow Adjustment - Ceiling height Make the following setting according to the ceiling height. The setting position No. is set to “01” at the factory. In the Case of FXA, FXH Mode No. Setting Switch No. 13(23) 0 Setting Position Setting No. 01 Wall-mounted type: Standard 02 03 Wall-mounted type: Slight increase Wall-mounted type: Normal increase In the Case of FXF25~80 Mode No. 13 (23) First Second code code No. No.
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Field Setting Si38-304 Setting of Air Flow Direction Adjustment Range Make the following air flow direction setting according to the respective purpose. Setting Table Mode No. First Code No. Second Code No. Setting 13 (23) 4 01 02 Upward (Draft prevention) Standard 03 Downward (Ceiling soiling prevention) Air flow rate switching at discharge grille for field air flow rate switching When the optional parts (high performance filter, etc.
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Si38-304 Field Setting 3.1.7 Centralized Control Group No. Setting BRC1A Type If carrying out centralized control by central remote controller or unified ON/OFF controller, group No. must be set for each group individually by remote controller. Group No. setting by remote controller for centralized control 1. When in the normal mode, push the button for 4 seconds or more, and operation then enters the “field setting mode.” 2. Set mode No. “00” with the button. ∗ 3.
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Field Setting Si38-304 Group No.
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Si38-304 Field Setting 3.1.8 Setting of Operation Control Mode from Remote Controller (Local Setting) The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller. Furthermore, operations such as remote controller ON/OFF can be limited in accordance with the combination conditions. (Refer to information in the table below.) Centralized controller is normally available for operations.
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Field Setting How to Select Operation Mode Example ON by remote controller (Unified ON by central remote controller) ↓ Rejection Si38-304 Whether operation by remote controller will be possible or not for turning on/off, controlling temperature or setting operation mode is selected and decided by the operation mode given on the right edge of the table below.
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Si38-304 3.2 Field Setting Field Setting from Outdoor Unit 3.2.1 Field Setting from Outdoor Unit Setting by dip switches The following field settings are made by dip switches on PC board. Dipswitch No. DS1-1 Caution Setting item Setting ON OFF (Factory set) Cool / Heat select Used to set cool / heat select by remote controller equipped with outdoor unit. ON DS1-2 ~DS1-4 OFF (Factory set) DS2-1 ~4 DS3-1, 2 Description Not used Do not change the factory settings.
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Field Setting Si38-304 BS1 BS2 BS3 BS4 BS5 MODE SET RETURN TEST RESET (V2760) There are the following three setting modes. c Setting mode 1 (H1P off) Initial status (when normal) : Used to select the cool/heat setting. Also indicates during “abnormal”, “low noise control” and “demand control”. d Setting mode 2 (H1P on) Used to modify the operating status and to set program addresses, etc. Usually used in servicing the system.
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Si38-304 Field Setting a. “Setting mode 1” “Normally, “Setting mode 1” is set. In case of other status, push MODE button (BS1) one time and set to “Setting mode 1”. Push the SET button (BS2) and set LED display to a setting item you want. l Regarding setting item No. 1,5,6, only the present status is displayed. For the respective description, refer to the table shown on lower right. l The cool/heat selection setting can be changed on setting item 2, 3, 4.
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Field Setting Si38-304 b. “Setting mode 2” No. Push and hold the MODE button (BS1) for 5 seconds and set to “Setting mode 2”. EMG (Emergency operation 1) 1 Cool/heat unified address Low noise/demand address Sets address for cool/heat unified operation. Allows forced operation of indoor unit fan while unit is stopped.
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Si38-304 Field Setting No.
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Field Setting Si38-304 Setting item display No. 0 1 Setting item EMG (emergency operation) INV compressor operation inhibited.
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Si38-304 Field Setting Setting item display No.
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Field Setting Si38-304 c. Monitor mode No. To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”. LED display Setting item H1P Push the RETURN button (BS3) to display different data of set items.
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Si38-304 Field Setting Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and enter the data for each setting. + Data such as addresses and number of units is expressed as binary numbers; the two ways of expressing are as follows: 9 797997 16 32 4 8 1 2 In c the address is 010110 (binary number), which translates to 16 + 4 + 2 = 22 (base 10 number). In other words, the address is 22. 977 7979 64 16 No.12 128 32 977 7997 4 No.13 8 The No.
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Field Setting Si38-304 3.2.2 Cool / Heat Mode Switching There are the following 5 cool/heat switching modes. c Set cool/heat separately for each outdoor unit system by indoor unit remote controller. d Set cool/heat separately for each outdoor unit system by cool/heat switching remote controller. e Set cool/heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller.
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Si38-304 Field Setting d Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller It does not matter whether or not there is outdoor - outdoor unit wiring. Set outdoor unit PC board DS1-1 to “outdoor” (factory set). Set cool/heat switching to “individual” for “Setting mode 1” (factory set). Test Operation : http://splitoff.ru/tehn-doc.
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Field Setting Si38-304 e Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Indoor Unit Remote Controller Install the outdoor unit external control adapter on either the outdoor-outdoor, indooroutdoor, or transmission line. Set outdoor unit PC board DS1-1 to “Indoor” (factory set).
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Si38-304 Field Setting f Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Cool/Heat Switching Remote Controller Add and change the following items to e. + Install cool/heat switching remote controller on the group master outdoor unit. + Set SS1 on the group master outdoor unit PC board. Supplementation on e and f.
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Field Setting Si38-304 Address setting for e and f (Set lower 5 digits with binary number.) [No.0 to No.31] Address No. No 0 Adapter PCB Outdoor unit PCB LED Set with setting mode 2 87 DS2 DS1 77777 0 No 1 87 0 77778 1 No 2 87 1 77787 2 No 3 87 2 77788 3 No 4 87 4 4 ~ No 31 77877 ~ ~ No 30 3 87 88887 87 88888 8ON 7OFF 30 30 31 31 Upper position (ON) lower position (OFF) (The shaded part shows knob) (V2724) 152 : http://splitoff.ru/tehn-doc.
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Si38-304 Field Setting 3.2.3 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adapter (optional), you can lower operating noise by 2-3 dB. A. When the low noise operation is carried out by external instructions (with the use of the outdoor unit external control adapter) 1. Set “External low noise / Demand YES/NO setting” to “External low noise / Demand YES”.
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Field Setting Si38-304 Image of operation in the case of A Image of operation in the case of B Image of operation in the case of A, B 154 : http://splitoff.ru/tehn-doc.
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Si38-304 Field Setting Setting of Demand Operation By connecting the external contact input to the demand input of the outdoor unit external control adapter (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. A. When the demand operation is carried out by external instructions (with the use of the outdoor unit external control adapter).
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Field Setting Si38-304 Image of operation in the case of A Power consumption The power consumption during the demand level 1 instructing can be set with the "Demand 1 level setting". ("70 % of rated power consumption" has been set at factory.) Rated power consumption 80 % of rated power consumption 70 % of rated power consumption 60 % of rated power consumption Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing Power consumption set by "Demand 1 level setting".
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Si38-304 Field Setting Detailed Setting Procedure of Low Noise Operation and Demand Control 1. Setting mode 1 (H1P off) c In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 2 is entered and H1P lights. During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are displayed. 2. Setting mode 2 (H1P on) c In setting 1, push and hold the BS1 (MODE button) for more than 5 seconds. → Setting mode 2 is entered and H1P lights.
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Field Setting Si38-304 d c Setting No. Setting contents e Setting No. indication Setting No.
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Si38-304 Field Setting 3.2.4 Setting of Refrigerant Additional Charging Operation When additional refrigerant is not charged all with outdoor unit in stop mode, operate the outdoor unit and charge the liquid refrigerant from the service port of liquid stop value. The additional charging operation is activated by pushbutton switch on the outdoor unit PC board. [Additional refrigerant charge total flow] STEP 1 Confirm LIQ & SUCTION and Oil equalizing Stop valve closed.
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Field Setting Si38-304 [Operation procedure detail] c After turning the respective remote switch of indoor and outdoor units off and charging the refrigerant, turn on the power of indoor and outdoor units. Do not fail to turn the power off and charge the refrigerant with outdoor unit in stop mode before adding the refrigerant following this procedure, otherwise resulting in trouble.
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Si38-304 Field Setting 3.2.6 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of indoor and outdoor units to turn on some solenoid valves. [Operating procedure] c With Setting Mode 2 while the unit stops, set (B) Refrigerant recovery / Vacuuming mode to ON. The expansion valves of indoor and outdoor units fully open and some of solenoid valves open.
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Field Setting 162 Si38-304 : http://splitoff.ru/tehn-doc.
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Si38-304 Part 6 Troubleshooting 1. Troubleshooting by Remote Controller ...............................................165 1.1 1.2 1.3 1.4 The INSPECTION / TEST Button.........................................................165 Self-diagnosis by Wired Remote Controller .........................................166 Self-diagnosis by Wireless Remote Controller .....................................167 Operation of The Remote Controller’s Inspection / Test Operation Button .....................................
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Si38-304 2.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise .............................................213 2.32 “L5” Outdoor Unit: Inverter Compressor Abnormal ...............................214 2.33 “L8” Outdoor Unit: Inverter Current Abnormal.......................................215 2.34 “L9” Outdoor Unit: Inverter Start up Error..............................................216 2.35 “LC” Outdoor Unit: Malfunction of Transmission Between Inverter and Control PC Board........
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Si38-304 Troubleshooting by Remote Controller 1. Troubleshooting by Remote Controller 1.1 The INSPECTION / TEST Button The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Indoor unit settings can be made • Filter sign time • Air flow direction • Others Depress Inspection/Test Operation button for more than 4 seconds. Local setting mode Service mode Depress Inspection/Test Operation button for more than 4 seconds. Service data can be obtained.
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Troubleshooting by Remote Controller 1.2 Self-diagnosis by Wired Remote Controller Explanation 166 Si38-304 If operation stops due to malfunction, the remote controller’s operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when the inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop. See page 173 for malfunction code and malfunction contents.
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Si38-304 1.3 Troubleshooting by Remote Controller Self-diagnosis by Wireless Remote Controller In the Case of BRC7C ~ Type If equipment stops due to a malfunction, the operation indicating LED on the light reception section flashes. The malfunction code can be determined by following the procedure described below. (The malfunction code is displayed when an operation error has occurred. In normal condition, the malfunction code of the last problem is displayed.) 1.
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Troubleshooting by Remote Controller Si38-304 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed. 168 : http://splitoff.ru/tehn-doc.
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Si38-304 Troubleshooting Troubleshooting by Remote Controller : http://splitoff.ru/tehn-doc.
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Troubleshooting by Remote Controller 1.4 Si38-304 Operation of The Remote Controller’s Inspection / Test Operation Button Unit 0 Malfunction code L0 Inspection Malfunction code blinks when a malfunction occurs. Normal display (No display) Inspection/test operation Push the button. 0 Unit L0 Malfunction code Inspection Inspection mode Inspection/test operation Example of capacity code display 0 7 1... Capacity code F... Indoor unit system code C... Indoor unit type code J...
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Si38-304 1.5 Troubleshooting by Remote Controller Remote Controller Service Mode How to Enter the Service Mode Service Mode Operation Method Troubleshooting 1. Select the mode No. Set the desired mode No. with the button. (For wireless remote controller, Mode 43 only can be set.) 2. Select the unit No. (For group control only) Select the indoor unit No. to be set with the time mode . (For wireless remote controller, button.) 3. Make the settings required for each mode.
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Troubleshooting by Remote Controller Mode No 40 Function Malfunction hysteresis display Si38-304 Contents and operation method Remote controller display example Display malfunction hysteresis. The history No. can be changed with the button. Unit 1 Malfunction code 2-U4 40 Malfunction code Hystory No: 1 - 9 1: Latest (VE007) 41 Display of sensor and address data Display various types of data. Select the data to be displayed with the button. Sensor data 0: Thermostat sensor in remote controller.
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Si38-304 1.6 Troubleshooting by Remote Controller Remote Controller Self-Diagnosis Function The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunction code and display of malfunctioning unit No. let you know the contents and location of the malfunction.
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Troubleshooting by Remote Controller Indoor Unit Outdoor Unit 174 Si38-304 Malfunction code Operation lamp Inspection display Unit No.
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Si38-304 Outdoor Unit System Centrali zed Control and Schedu le Timer Heat Reclai m Ventilat ion Troubleshooting by Remote Controller Malfunction code Operation lamp Inspection display Unit No.
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Troubleshooting by Remote Controller Si38-304 Malfunction code indication by outdoor unit PCB Monitor mode Contents of malfunction To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”. Malfunction code Abnormal discharge pressure HPS activated E3 Abnormal suction pressure Abnormal Pe E4 Compressor lock Detection of INV compressor lock E5 Activation of OC Detection of STD1 compressor lock E6 * Refer P.124 for Monitor mode.
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Si38-304 Troubleshooting by Remote Controller Malfunction Confirmation of malfunction 1 code LED1 LED2 LED3 LED4 LED5 E3 . 7 8 7 7 Confirmation of malfunction 2 Confirmation of malfunction 3 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED6 LED7 . . E7 . . . . . . 8 8 8 8 8 8 7 7 7 7 7 7 7 7 7 7 7 7 7 . . . . . . 7 7 . . . . 7 . 7 7 . . . . . . . 8 8 8 8 8 8 8 8 8 8 8 8 7 7 7 7 . 7 7 7 7 . 7 . E9 . 8 7 . 7 7 . . . . . . . . .
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Troubleshooting by Indication on the Remote Controller Si38-304 2. Troubleshooting by Indication on the Remote Controller 2.
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Si38-304 2.2 Troubleshooting by Indication on the Remote Controller “A1” Indoor Unit: PC Board Defect Remote Controller Display A1 Applicable Models All indoor unit models Method of Malfunction Detection Check data from E²PROM. Malfunction Decision Conditions When data could not be correctly received from the E²PROM E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power supply is turned off.
PAGE 191
Troubleshooting by Indication on the Remote Controller 2.3 Si38-304 “A3” Indoor Unit: Malfunction of Drain Level Control System (33H) Remote Controller Display A3 Applicable Models FXC, FXF, FXS, FXA, FXK, FXH (Option) , FXM (Option), FXYB Method of Malfunction Detection By float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF.
PAGE 192
Si38-304 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. NO Is power supply 220~240V provided? Provide 220~240V power supply. YES The float switch is connected to X8A of the indoor unit PC board. NO A short circuit connector is connected to X8A. NO Connect either a short circuit connector or float switch and turn on again.
PAGE 193
Troubleshooting by Indication on the Remote Controller 2.
PAGE 194
Si38-304 2.5 Troubleshooting by Indication on the Remote Controller “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA) Remote Controller Display A7 Applicable Models FXC, FXA, FXF, FXH, FXK Method of Malfunction Detection Utilizes ON/OFF of the limit switch when the motor turns. Malfunction Decision Conditions When ON/OFF of the microswitch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time (about 30 seconds).
PAGE 195
Troubleshooting by Indication on the Remote Controller Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is power supply 220~240V provided? NO Provide 220~240V power supply. YES Indoor unit is a model equipped with a swing flap function NO Replace indoor unit PC board. YES The swing motor works when the power supply is turned off and then back on.
PAGE 196
Si38-304 2.
PAGE 197
Troubleshooting by Indication on the Remote Controller Si38-304 ∗1: Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins. (Normal) Pin No. 1. White 2. Yellow 3. Orange 4. Blue 1. White 2. Yellow 3. Orange 4. Blue 5. Red 6. Brown × { Approx. 300Ω × × { Approx. 150Ω × × { Approx. 300Ω × { Approx. 150Ω × 5. Red { Approx. 150Ω × { Approx. 150Ω × 6.
PAGE 198
Si38-304 2.7 Troubleshooting by Indication on the Remote Controller “AF” Indoor Unit: Drain Level above Limit Remote Controller Display AF Applicable Models FXC, FXF, FXS, FXK, FXM, FXYB Method of Malfunction Detection Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-operation. Malfunction Decision Conditions When the float switch changes from ON to OFF while the compressor is in non-operation.
PAGE 199
Troubleshooting by Indication on the Remote Controller 2.8 Si38-304 “AJ” Indoor Unit: Malfunction of Capacity Determination Device Remote controller display AJ Applicable Models All indoor unit models Method of Malfunction Detection Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the IC memory on the indoor unit PC board, and whether the value is normal or abnormal is determined. Malfunction Decision Conditions Operation and: 1.
PAGE 200
Si38-304 2.9 Troubleshooting by Indication on the Remote Controller “C4” Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger Remote Controller Display C4 Applicable Models All indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by heat exchanger thermistor. Malfunction Decision Conditions When the heat exchanger thermistor becomes disconnected or shorted while the unit is running.
PAGE 201
Troubleshooting by Indication on the Remote Controller Si38-304 2.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes Remote Controller Display C5 Applicable Models All indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by gas pipe thermistor. Malfunction Decision Conditions When the gas pipe thermistor becomes disconnected or shorted while the unit is running.
PAGE 202
Si38-304 Troubleshooting by Indication on the Remote Controller 2.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air Remote Controller Display C9 Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by suction air temperature thermistor. Malfunction Decision Conditions When the suction air temperature thermistor becomes disconnected or shorted while the unit is running.
PAGE 203
Troubleshooting by Indication on the Remote Controller Si38-304 2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller Remote Controller Display CJ Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by remote controller air temperature thermistor.
PAGE 204
Si38-304 Troubleshooting by Indication on the Remote Controller 2.13 “E1” Outdoor Unit: PC Board Defect Remote Controller Display E1 Applicable Models RX(Y)5~48M Method of Malfunction Detection Check data from E²PROM Malfunction Decision Conditions When data could not be correctly received from the E²PROM E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power supply is turned off.
PAGE 205
Troubleshooting by Indication on the Remote Controller Si38-304 2.14 “E3” Outdoor Unit: Actuation of High Pressure Switch Remote Controller Display E3 Applicable Models RX(Y)5~48M Method of Malfunction Detection Abnormality is detected when the contact of the high pressure protection switch opens. Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode.
PAGE 206
Si38-304 Troubleshooting by Indication on the Remote Controller 2.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor Remote Controller Display E4 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pressure.
PAGE 207
Troubleshooting by Indication on the Remote Controller Si38-304 2.16 “E5” Compressor Motor Lock Remote Controller Display E5 Applicable Models RX(Y)5~48M Method of Malfunction Detection Inverter PC board takes the position signal from UVWN line connected between the inverter and compressor, and detects the position signal pattern.
PAGE 208
Si38-304 Troubleshooting by Indication on the Remote Controller 2.17 “E6” Standard Compressor Motor Overcurrent/Lock Remote Controller Display E6 Applicable Models RX(Y)5~48M Method of Malfunction Detection Detects the overcurrent with current sensor (CT). Malfunction Decision Conditions Malfunction is decided when the detected current value exceeds the below mentioned value for 2 seconds. 400 V unit : 15.0 A 200 V unit : 28.
PAGE 209
Troubleshooting by Indication on the Remote Controller Si38-304 2.18 “E7” Malfunction of Outdoor Unit Fan Motor Remote Controller Display E7 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs.
PAGE 210
Si38-304 Troubleshooting by Indication on the Remote Controller Troubleshooting 1A Check No. 12 Check on pulse input of position signal of fan inverter PCB Is the LED (HAP) on fan inverter PCB blinking? NO Replace the fan inverter PCB. YES Check No. 8 Check on connector of fan motor (Power supply cable) Are the resistance values between phases of U, V, W balanced? Is there any short circuiting between phases of U, V, W? NO Replace the fan motor of outdoor unit. YES Check No.
PAGE 211
Troubleshooting by Indication on the Remote Controller Si38-304 2.19 “E9” Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y2E) Remote Controller Display E9 Applicable Models RX(Y)5~48M Method of Malfunction Detection Check disconnection of connector Check continuity of expansion valve coil Malfunction Decision Conditions Error is generated under no common power supply when the power is on.
PAGE 212
Si38-304 Troubleshooting by Indication on the Remote Controller ∗1 Coil check method for the moving part of the electronic expansion valve Disconnect the electronic expansion valve from the PC board and check the continuity between the connector pins. (Normal) Pin No. 1. White 1. White 2. Yellow 3. Orange 4. Blue 2. Yellow 3. Orange 4. Blue 5. Red 6. Brown × × × { × × { × { × × { 5. Red 6. Brown × : Continuity Approx. 300Ω { : Continuity Approx.
PAGE 213
Troubleshooting by Indication on the Remote Controller Si38-304 2.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature Remote Controller Display F3 Applicable Models RX(Y)5~48M Method of Malfunction Detection Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.
PAGE 214
Si38-304 Troubleshooting by Indication on the Remote Controller 2.21 “F6” Refrigerant Overcharged Remote Controller Display F6 Applicable Models RX(Y)5~48M Method of Malfunction Detection Refrigerant overcharge is detected from the receiver gas pipe temperature during test operation. Malfunction Decision Conditions When the receiver gas pipe temperature is lower than evaporating temperature during test operation.
PAGE 215
Troubleshooting by Indication on the Remote Controller Si38-304 2.22 “H7” Abnormal Outdoor Fan Motor Signal Remote Controller Display H7 Applicable Models RX(Y)5~48M Method of Malfunction Detection Detection of abnormal signal from fan motor. Malfunction Decision Conditions In case of detection of abnormal signal at starting fan motor.
PAGE 216
Si38-304 Troubleshooting by Indication on the Remote Controller 2.23 “H9” Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T) Remote Controller Display H9 Applicable Models RX(Y)5~48M Method of Malfunction Detection The abnormal detection is based on current detected by current sensor. Malfunction Decision Conditions When the outside air temperature sensor has short circuit or open circuit.
PAGE 217
Troubleshooting by Indication on the Remote Controller Si38-304 2.24 “J2” Current Sensor Malfunction Remote Controller Display J2 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected according to the current value detected by current sensor. Malfunction Decision Conditions When the current value detected by current sensor becomes 5A (400 V unit) and 3A (200 V unit) or lower during STD compressor operation and 40A or more during STD compressor stop.
PAGE 218
Si38-304 Troubleshooting by Indication on the Remote Controller 2.25 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R31~33T) Remote Controller Display J3 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from the temperature detected by discharge pipe temperature thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
PAGE 219
Troubleshooting by Indication on the Remote Controller Si38-304 2.26 “J5” Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe Remote Controller Display J5 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from the temperature detected by the suction pipe temperature thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.
PAGE 220
Si38-304 Troubleshooting by Indication on the Remote Controller 2.27 “J6” Outdoor Unit: Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger Remote Controller Display J6 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from the temperature detected by the heat exchanger thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the heat exchange thermistor is detected.
PAGE 221
Troubleshooting by Indication on the Remote Controller Si38-304 2.28 “J9” Malfunction of Receiver Gas Pipe Thermistor (R5T) Remote Controller Display J9 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected according to the temperature detected by receiver gas pipe thermistor (= Subcooling heat exchanger gas pipe thermistor). Malfunction Decision Conditions When the receiver gas pipe thermistor is short circuited or open.
PAGE 222
Si38-304 Troubleshooting by Indication on the Remote Controller 2.29 “JA” Outdoor Unit: Malfunction of High Pressure Sensor Remote Controller Display JA Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from the pressure detected by the high pressure sensor. Malfunction Decision Conditions When the high pressure sensor is short circuit or open circuit.
PAGE 223
Troubleshooting by Indication on the Remote Controller Si38-304 2.30 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor Remote Controller Display JC Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from pressure detected by low pressure sensor. Malfunction Decision Conditions When the low pressure sensor is short circuit or open circuit. Supposed Causes Defect of low pressure sensor system Connection of high pressure sensor with wrong connection.
PAGE 224
Si38-304 Troubleshooting by Indication on the Remote Controller 2.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Remote Controller Display L4 Applicable Models RX(Y)5~48M Method of Malfunction Detection Fin temperature is detected by the thermistor of the radiation fin. Malfunction Decision Conditions When the temperature of the inverter radiation fin increases above 89°C.
PAGE 225
Troubleshooting by Indication on the Remote Controller Si38-304 2.32 “L5” Outdoor Unit: Inverter Compressor Abnormal Remote Controller Display L5 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor. Malfunction Decision Conditions When an excessive current flows in the power transistor. (Instantaneous overcurrent also causes activation.
PAGE 226
Si38-304 Troubleshooting by Indication on the Remote Controller 2.33 “L8” Outdoor Unit: Inverter Current Abnormal Remote Controller Display L8 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected by current flowing in the power transistor. Malfunction Decision Conditions When overload in the compressor is detected.
PAGE 227
Troubleshooting by Indication on the Remote Controller Si38-304 2.34 “L9” Outdoor Unit: Inverter Start up Error Remote Controller Display L9 Applicable Models RX(Y)5~48M Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor.
PAGE 228
Si38-304 Troubleshooting by Indication on the Remote Controller 2.35 “LC” Outdoor Unit: Malfunction of Transmission Between Inverter and Control PC Board Remote Controller Display LC Applicable Models RX(Y)5~48M Method of Malfunction Detection Check the communication state between inverter PC board and control PC board by microcomputer. Malfunction Decision Conditions When the correct communication is not conducted in certain period.
PAGE 229
Troubleshooting by Indication on the Remote Controller Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Are the connectors between the main PC board (A1P), fan drive PC board (A3P) and inverter PC board (A2P) connected securely? NO Connect transmission wiring and turn on again. YES The transmission wiring between the outdoor unit PC board, fan drive board and inverter unit is disconnected.
PAGE 230
Si38-304 Troubleshooting by Indication on the Remote Controller 2.36 “P1” Outdoor Unit: Inverter Over-Ripple Protection Remote Controller Display P1 Applicable Models RX(Y)5~48M Method of Malfunction Detection Imbalance in supply voltage is detected in PC board. Malfunction Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status. Malfunction is not decided while the unit operation is continued.
PAGE 231
Troubleshooting by Indication on the Remote Controller Si38-304 2.37 “P4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor Remote Controller Display P4 Applicable Models RX(Y)5~48M Method of Malfunction Detection Resistance of radiation fin thermistor is detected when the compressor is not operating. Malfunction Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status.
PAGE 232
Si38-304 Troubleshooting by Indication on the Remote Controller 2.38 “UO” Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Controller Display U0 Applicable Models RX(Y)5~48M Method of Malfunction Detection Short of gas malfunction is detected by discharge pipe temperature thermistor. Malfunction Decision Conditions Microcomputer judge and detect if the system is short of refrigerant. +Malfunction is not decided while the unit operation is continued.
PAGE 233
Troubleshooting by Indication on the Remote Controller Si38-304 2.39 “U1” Reverse Phase, Open Phase Remote Controller Display U1 Applicable Models RX(Y)5~48M Method of Malfunction Detection Detection is based on the voltage in main circuit capacitor for inverter and supply voltage. The phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged.
PAGE 234
Si38-304 Troubleshooting by Indication on the Remote Controller 2.40 “U2” Power Supply Insufficient or Instantaneous Failure Remote Controller Display U2 Applicable Models RX(Y)5~48M Method of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage.
PAGE 235
Troubleshooting by Indication on the Remote Controller Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is connection wire connected between the connector X21A and X6A? NO Repair wiring. YES Turn on again. Turn K1M ON. NO YES The voltage between the P and N terminals is 380 VDC (Y1, YL) and 190VDC (TL) or more when the compressor is running.
PAGE 236
Si38-304 Troubleshooting by Indication on the Remote Controller 2.41 “U3” Check Operation not executed Remote Controller Display U3 Applicable Models RX(Y)5~48M Method of Malfunction Detection Check operation is executed or not Malfunction Decision Conditions Malfunction is decided when the unit starts operation without check operation. Supposed Causes Check operation is not executed.
PAGE 237
Troubleshooting by Indication on the Remote Controller Si38-304 2.42 “U4” Malfunction of Transmission Between Indoor Units Remote Controller Display U4 Applicable Models All model of indoor unit RX(Y)5~48M Method of Malfunction Detection Microcomputer checks if transmission between indoor and outdoor units is normal.
PAGE 238
Si38-304 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Has the indoor or outdoor unit PC board been replaced, or has the indoor - outdoor or outdoor - outdoor unit transmission wiring been modified? YES Push and hold the RESET button on the master outdoor unit PC Board for 5 seconds. ∗ The unit will not operate for up to 12 minutes.
PAGE 239
Troubleshooting by Indication on the Remote Controller Si38-304 2.43 “U5” Malfunction of Transmission Between Remote Controller and Indoor Unit Remote Controller Display U5 Applicable Models All models of indoor units Method of Malfunction Detection In case of controlling with 2-remote controller, check the system using microcomputer is signal transmission between indoor unit and remote controller (main and sub) is normal.
PAGE 240
Si38-304 Troubleshooting by Indication on the Remote Controller 2.44 “U7” Malfunction of Transmission Between Outdoor Units Remote Controller Display U7 Applicable Models All models of indoor units Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and remote controller is normal.
PAGE 241
Troubleshooting by Indication on the Remote Controller Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the outdoor units multi connection transmission wiring normal? NO Fix the outdoor units multi connection transmission wiring and reset power. YES Is the indoor / outdoor unit transmission wiring normal? NO Fix the indior / outdoor unit transmission wiring. YES C/H SELECT is set to "IND".
PAGE 242
Si38-304 Troubleshooting by Indication on the Remote Controller 2.45 “U8” Malfunction of Transmission Between Master and Slave Remote Controllers Remote Controller Display U8 Applicable Models All models of indoor units Method of Malfunction Detection In case of controlling with 2-remote controller, check the system using microcomputer if signal transmission between indoor unit and remote controller (main and sub) is normal.
PAGE 243
Troubleshooting by Indication on the Remote Controller Si38-304 2.
PAGE 244
Si38-304 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. "U9" has been displayed for 2 minutes or more. YES Re-diagnose by display after passage of 2 minutes or more. NO Turn on all indoor units. NO The "UA" display blinks on the remote controllers of other units within the same refrigerant system. YES Refer to failure diagnosis for "UA" malfunction code.
PAGE 245
Troubleshooting by Indication on the Remote Controller Si38-304 2.47 “UA” Excessive Number of Indoor Units Remote Controller Display UA Applicable Models All models of indoor unit RX(Y)5~48M Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Excess of connected indoor units Defect of outdoor unit PC board (A1P) Mismatching of the refrigerant type of indoor and outdoor unit. Setting of outdoor P.C. board was not conducted after replacing to spare parts P.C. board.
PAGE 246
Si38-304 Troubleshooting by Indication on the Remote Controller 2.
PAGE 247
Troubleshooting by Indication on the Remote Controller Si38-304 2.49 “UE” Malfunction of Transmission Between Central Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models All models of indoor units Centralized controller Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal.
PAGE 248
Si38-304 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Has an indoor unit once connected been remove or its address changed? YES Reset power supply simultaneously for all optional controllers for centralized control. NO Is the power supply turned on for indoor units displaying malfunction? NO Turn indoor unit's power supply.
PAGE 249
Troubleshooting by Indication on the Remote Controller Si38-304 2.
PAGE 250
Si38-304 Troubleshooting by Indication on the Remote Controller 2.
PAGE 251
Troubleshooting (OP: Central Remote Controller) Si38-304 3. Troubleshooting (OP: Central Remote Controller) 3.1 “UE” Malfunction of Transmission Between Central Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models All models of indoor units RX(Y)5~48M Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and central remote controller is normal.
PAGE 252
Si38-304 3.2 Troubleshooting (OP: Central Remote Controller) “M1” PC Board Defect Remote Controller Display M1 Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Defect of central remote controller PC board Troubleshooting Replace the central remote controller PC board. Troubleshooting : http://splitoff.ru/tehn-doc.
PAGE 253
Troubleshooting (OP: Central Remote Controller) 3.
PAGE 254
Si38-304 3.
PAGE 255
Troubleshooting (OP: Central Remote Controller) Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the wiring adaptor for electrical appendices connected? Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously.
PAGE 256
Si38-304 3.5 Troubleshooting (OP: Central Remote Controller) “MC” Address Duplication, Improper Setting Remote Controller Display MC Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of centralized remote controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
PAGE 257
Troubleshooting (OP: Schedule Timer) Si38-304 4. Troubleshooting (OP: Schedule Timer) 4.1 “UE” Malfunction of Transmission Between Central Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models Schedule timer Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal.
PAGE 258
Si38-304 Troubleshooting (OP: Schedule Timer) Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Has an indoor unit once connected been removeor its address changed? YES Reset power supply simultaneously for all optional controllers for centralized control. NO Is the power supply turned on for indoor units displaying malfunction? NO Turn indoor unit's power supply.
PAGE 259
Troubleshooting (OP: Schedule Timer) 4.2 Si38-304 “M1” PC Board Defect Remote Controller Display M1 Applicable Models Schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Defect of schedule timer PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Reset power supply.
PAGE 260
Si38-304 4.
PAGE 261
Troubleshooting (OP: Schedule Timer) 4.4 Si38-304 “MA” Improper Combination of Optional Controllers for Centralized Control Remote Controller Display MA Applicable Models All models of indoor units, schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 250 Improper combination of optional controllers for centralized control More than one master controller is connected.
PAGE 262
Si38-304 Troubleshooting (OP: Schedule Timer) Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
PAGE 263
Troubleshooting (OP: Schedule Timer) 4.5 Si38-304 “MC” Address Duplication, Improper Setting Remote Controller Display MC Applicable Models All models of indoor units, schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of optional controller for centralized control Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
PAGE 264
Si38-304 Troubleshooting (OP: Unified ON/OFF Controller) 5. Troubleshooting (OP: Unified ON/OFF Controller) 5.
PAGE 265
Troubleshooting (OP: Unified ON/OFF Controller) Si38-304 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is a malfunction code displayed on the remote controller? YES Diagnose the cause with the air conditioner's failure diagnosis manual. NO Has a once connected indoor unit been removed or its address changed? YES Reset power supply for all optional controllers for centralized control simultaneously.
PAGE 266
Si38-304 5.
PAGE 267
Troubleshooting (OP: Unified ON/OFF Controller) Si38-304 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Caution Has a once connected optional controller for centralized control been disconnected or itsaddress changed? YES Reset power supply simultaneously for all optional controllers for centralized control.
PAGE 268
Si38-304 Troubleshooting (OP: Unified ON/OFF Controller) 2A Is the wiring adaptor for electrical appendices connected? YES NO Is a schedule timer connected? YES Is a data station connected? NO YES NO Is a parallel interface connected? YES NO Is the schedule timer's individual/combined connector connected? NO Are there two or more optional controllers for centralized control connected with the connector for setting master control? YES YES Cannot be used in combination with a wiring adaptor
PAGE 269
Troubleshooting (OP: Unified ON/OFF Controller) 5.3 Si38-304 Display “Under Host Computer Integrate Control” Blinks (Repeats Double Blink) Remote Controller Display “under host computer integrated control” (Repeats double blink) Applicable Models Unified ON/OFF controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Central control address (group No.) is not set for indoor unit.
PAGE 270
Si38-304 Check No. 8 Check No. 9 Troubleshooting Troubleshooting (OP: Unified ON/OFF Controller) Check on connector of fan motor (Power supply cable) (1) Turn off the power supply. Measure the resistance between phases of U,V,W at the motor side connectors (three-core wire) to check that the values are balanced and there is no short circuiting, while connector or relay connector is disconnected. Red U White V Black W Measure the resistance values between phases U,V,W.
PAGE 271
Troubleshooting (OP: Unified ON/OFF Controller) Check No. 12 Si38-304 Check on pulse input of position signal of fan inverter PCB (1) Disconnect the connector X2A while power supply OFF and operation OFF. (2) Is the voltage between pins No. 4 and 5 on X2A approx. 15 V after power supply is turned on? (3) Connect the connector X2A while power supply OFF and operation OFF.
PAGE 272
Si38-304 Part 7 Replacement procedure for INV compressor, VRV II RX(Y)5M to 48M 1. Replacement procedure for INV compressor, VRV II RX(Y)5M-48M .....................................................................................262 1.1 Replacement procedure .......................................................................262 : http://splitoff.ru/tehn-doc.
PAGE 273
Replacement procedure for INV compressor, VRV II RX(Y)5M-48M Si38-304 1. Replacement procedure for INV compressor, VRV II RX(Y)5M-48M 1.1 Replacement procedure Equalizing seat outlet pipe (1) Collect the refrigerant by using refrigerant Suction pipe recovery unit. (Since the setting on outdoor unit PCB is required for refrigerant recovery, refer to the warning plate Discharge pipe "Precautions in service work" attached on the switch box cover.
PAGE 274
Si38-304 Part 8 Appendix 1. Piping Diagrams..................................................................................264 1.1 Outdoor Unit .........................................................................................264 1.2 Indoor Unit............................................................................................270 2. Wiring Diagrams for Reference...........................................................271 2.1 Outdoor Unit ................................................
PAGE 275
Piping Diagrams Si38-304 1. Piping Diagrams 1.1 Outdoor Unit 1.1.1 Heat Pump RXY5M 4D041235 264 : http://splitoff.ru/tehn-doc.
PAGE 276
Si38-304 Piping Diagrams RXY8M RXY10M RXY12M 4D041236 Appendix : http://splitoff.ru/tehn-doc.
PAGE 277
Piping Diagrams Si38-304 RXY14M RXY16M 4D041237 266 : http://splitoff.ru/tehn-doc.
PAGE 278
Si38-304 Piping Diagrams 1.1.2 Cooling Only RX5M 4D041808 Appendix : http://splitoff.ru/tehn-doc.
PAGE 279
Piping Diagrams Si38-304 RX8M RX10M RX12M 4D041809 268 : http://splitoff.ru/tehn-doc.
PAGE 280
Si38-304 Piping Diagrams RX14M RX16M 4D041810 Appendix : http://splitoff.ru/tehn-doc.
PAGE 281
Piping Diagrams 1.2 Si38-304 Indoor Unit FXC, FXF, FXK, FXYD, FXS, FXYB, FXM, FXH, FXA, FXL, FXN Gas piping connection port Heat exchanger Flare connection : φ19.1 or less Attached piping : Above φ25.
PAGE 282
Si38-304 Wiring Diagrams for Reference 2. Wiring Diagrams for Reference 2.1 Outdoor Unit 2.1.1 Heat Pump RXY5MY1, RXY5MYL Appendix : http://splitoff.ru/tehn-doc.
PAGE 283
Wiring Diagrams for Reference Si38-304 RXY8MY1, RXY8MYL RXY10MY1, RXY10MYL RXY12MY1, RXY12MYL 272 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference RXY14MY1, RXY14MYL RXY16MY1, RXY16MYL Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D041828 RXY5MTL 274 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 3D041829 RXY8MTL RXY10MTL RXY12MTL Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D041830 RXY14MTL RXY16MTL 276 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 2.1.2 Cooling Only 3D041805 RX5MY1 Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D041806 RX8MY1 RX10MY1 RX12MY1 278 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 3D041807 RX14MY1 RX16MY1 Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference 2.2 Si38-304 Field Wiring 2.2.1 50Hz / 60Hz 3D040746A 3D041987 RX(Y)5, 8, 10, 12, 14, 16MY1 RX(Y)5, 8, 10, 12, 14, 16MYL 280 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 3D040747A 3D041988 RX(Y)18, 20, 22, 24, 26, 28, 32MY1 RX(Y)18, 20, 22, 24, 26, 28, 32MYL Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D040748A 3D041989 RX(Y)34, 36, 38, 40, 42, 44, 46, 48MY1 RX(Y)34, 36, 38, 40, 42, 44, 46, 48MYL 282 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 2.2.2 60Hz 3D041990 RXY5, 8, 10, 12, 14, 16MTL Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D041991 RXY18, 20, 22, 24, 26, 28, 30, 32MTL 284 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference 3D041992 RXY34, 36, 38, 40, 42, 44, 46, 48MTL Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference 2.3 Si38-304 Indoor Unit FXC 20L / 25L / 32L / 63LVE 3D034120A 286 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXC 40L / 50L / 80L / 125LVE 3D034121 Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D033829A FXF25L / 32L / 40L / 50L / 63L / 80L / 100L / 125LVE 288 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXK 25L / 32L / 40L / 63LVE 3D035466 Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 FXYD20KAVE / 25KAVE / 32KAVE / 40KAVE / 50KAVE / 63KAVE 3D024108A 290 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXS 20L / 25L / 32L / 40L / 50L / 63L / 80L / 100L / 125LVE 3D035467 Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D037591C FXYB20K / 25K / 32K / 40K / 50K / 63K/ 80K / 100K/ 125KV1 292 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXM 40L / 50L / 63L / 80L / 100L / 125LVE 3D034209A Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 FXM 200L / 250LVE 3D034363 294 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXH 32L / 63L / 100LVE 3D034052A Appendix : http://splitoff.ru/tehn-doc.
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Wiring Diagrams for Reference Si38-304 3D034206A FXA20L / 25L / 32L / 40L / 50L / 63LVE 296 : http://splitoff.ru/tehn-doc.
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Si38-304 Wiring Diagrams for Reference FXL 20L / 25L / 32L / 40L / 50L / 63LVE FXN 20L / 25L / 32L / 40L / 50L / 63LVE 3D034183A Appendix : http://splitoff.ru/tehn-doc.
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List of Electrical and Functional Parts Si38-304 3. List of Electrical and Functional Parts 3.1 Outdoor Unit 3.1.1 RXY5~16MY1 Item Compressor Name Inverter STD.1 STD.2 Symbol Type Output Type Output Type Output Crankcase heater (INV) Crankcase heater (STD.1) Crankcase heater (STD.
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Si38-304 List of Electrical and Functional Parts Item Compressor Name Symbol M1C JT1FBVDKTYR 4.2kW JT1FBVDKTYR 2.0kW JT1FBVDKTYR 3.0kW STD.1 Type Output M2C JT170FBKYE 4.5kW JT170FBKYE 4.5kW JT170FBKYE 4.5kW STD.2 Type Output M3C — JT170FBKYE 4.5kW JT170FBKYE 4.5kW Crankcase heater (INV) Crankcase heater (STD.1) E1HC E2HC Crankcase heater (STD.2) OC protection device for STD compressor E3HC — Cooling Heating Cooling Heating Solenoid valve (Hot gas) — 240V 33W 13A M1F Y1E 0.
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List of Electrical and Functional Parts Si38-304 3.1.2 RXY5~16MYL Item Compressor Name Symbol Model Inverter Type M1C STD.1 Output Type RXY5MYL JT1FBVDKYR 3.2kW M2C — STD.2 Output Type M3C RXY8MYL JT1FBVDKTYR 1.2kW RXY10MYL JT1FBVDKTYR 2.7kW JT170FBKYH 4.5kW JT170FBKYH 4.5kW — Output Fan motor Crankcase heater (INV) E1HC Crankcase heater (STD.1) Crankcase heater (STD.2) E2HC E3HC — — — 13A M1F 0.35kw 0.
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Si38-304 List of Electrical and Functional Parts RXY12MYL Model RXY14MYL Inverter Type Output M1C JT1FBVDKTYR 4.2kW JT1FBVDKTYR 2.0kW JT1FBVDKTYR 3.0kW STD.1 Type Output M2C JT170FBKYH 4.5kW JT170FBKYH 4.5kW JT170FBKYH 4.5kW STD.2 Type Output M3C — JT170FBKYH 4.5kW JT170FBKYH 4.5kW Item Compressor Name Symbol Crankcase heater (INV) Crankcase heater (STD.1) E1HC E2HC Crankcase heater (STD.
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List of Electrical and Functional Parts Si38-304 3.1.3 RXY5~16MTL Item Compressor Name Symbol Model Inverter Type M1C STD.1 Output Type RXY5MTL JT100FBVD 3.2kW M2C — STD.2 Output Type M3C RXY8MTL JT100FBVDKT 1.2kW RXY10MTL JT100FBVDKT 2.7kW JT170FBK 4.5kW JT170FBK 4.5kW — Output Fan motor Crankcase heater (INV) E1HC Crankcase heater (STD.1) Crankcase heater (STD.2) E2HC E3HC — — — 25A M1F 0.35kw 0.
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Si38-304 List of Electrical and Functional Parts RXY12MTL Model RXY14MTL Inverter Type Output M1C JT100FBVDKT 4.2kW JT100FBVDKT 2.0kW JT100FBVDKT 3.0kW STD.1 Type Output M2C JT170FBK 4.5kW JT170FBK 4.5kW JT170FBK 4.5kW STD.2 Type Output M3C — JT170FBK 4.5kW JT170FBK 4.5kW Item Compressor Name Crankcase heater (INV) Crankcase heater (STD.1) E1HC E2HC Crankcase heater (STD.
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List of Electrical and Functional Parts Si38-304 3.1.4 RX5~16MY1 Item Compressor Name Symbol Model Inverter Type M1C STD.1 Output Type RX5MY1 JT1FBVDKYR 3.2kW M2C — STD.2 Output Type M3C RX8MY1 JT1FBVDKTYR 1.2kW RX10MY1 JT1FBVDKTYR 2.7kW JT170FBKYE 4.5kW JT170FBKYE 4.5kW — Output Fan motor Crankcase heater (INV) E1HC Crankcase heater (STD.1) Crankcase heater (STD.2) E2HC E3HC — — — 13A M1F 0.35kw 0.
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Si38-304 List of Electrical and Functional Parts RX12MY1 Model RX14MY1 Inverter Type Output M1C JT1FBVDKTYR 4.2kW JT1FBVDKTYR 2.0kW JT1FBVDKTYR 3.0kW STD.1 Type Output M2C JT170FBKYE 4.5kW JT170FBKYE 4.5kW JT170FBKYE 4.5kW STD.2 Type Output M3C — JT170FBKYE 4.5kW JT170FBKYE 4.5kW Item Compressor Name Symbol Crankcase heater (INV) Crankcase heater (STD.1) E1HC E2HC Crankcase heater (STD.
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List of Electrical and Functional Parts 3.2 Si38-304 Indoor Side 3.2.
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Si38-304 List of Electrical and Functional Parts Model Parts Name Remote Controller Symbol FXK 25LVE FXK 32LVE Wired Remote Controller FXK 40LVE FXK 63LVE BRC1A61 Wireless Remote Controller Remark Option H/P BRC4C61, C/O BRC4C63 AC 220~240V 50Hz Fan Motor 1φ15W 4P M1F 1φ20W 4P Thermal Fuse 146°C Motors Drain Pump M1P AC 220-240V (50Hz) PLD-12200DM Thermal Fuse 145°C Swing Motor M1S MP8-L [3PA07312-1] AC200~240V Thermistor (Suction Air) R1T ST8601-13 φ4 L630 20kΩ (25°C) (for Heat T
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List of Electrical and Functional Parts Parts Name Remote Controller Symbol Si38-304 FXS 20LVE FXS 25LVE Wired Remote Controller Wireless Remote Controller Fan Motor AC 220~240V 50Hz 1φ85W 1φ125 W 1φ50W M1F 1φ65W Thermistor (Suction Air) R1T (for Heat Thermistors Thermistor Exchanger High Temp.
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Si38-304 List of Electrical and Functional Parts Model Parts Name Remote Controller Symbol FXH 32LVE FXH 63LVE Wired Remote Controller FXH 100LVE BRC1A61 Wireless Controller Remark Option H/P BRC7E63W, C/O BRC7E66 AC 220~240V/220V 50Hz/60Hz Fan Motor M1F 1φ63W 1φ130W Thermal protector 130°C : OFF Motors Capacitor for Fan Motor C1R 80°C : ON 9.0µF-400V 3.
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List of Electrical and Functional Parts Si38-304 Model Parts Name Remote Controller Symbol FXL 20LVE FXL 25LVE Wired Remote Controller FXL 32LVE FXL 40LVE FXL 50LVE Remark FXL 63LVE BRC1A62 Option Wireless Remote Controller H/P BRC4C62, C/O BRC4C64 AC 220~240V 50Hz Motors Fan Motor M1F 1φ15W 1φ25W 1φ35W Thermal protector 135°C : OFF Capacitor for Fan Motor C1R 1.0µF-400V 0.5µF-400V 1.
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Si38-304 Option List 4. Option List 4.1 Option List of Controllers Operation Control System Optional Accessories No.
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Option List Si38-304 Building management system No. Part name Model No. Without PPD 1 1-1 2 intelligent Touch Controller With PPD Electrical box with earth terminal (4blocks) intelligent Manager Number of units to be ECO 21 connected DCS601B51 DCS601B51 DCS002B51 KJB411A 128 units DAM602A52 192 units DAM602A53 256 units Function Air-Conditioning management system that can be controlled by a compact all-in-one unit.
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Si38-304 4.
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Piping Installation Point Si38-304 5. Piping Installation Point 5.1 Piping Installation Point 5m or less than 5m Maximum length from a connection kit. 10m or less from first branch. (Equivalent Piping Length 13m) Connection Kit B Connection Kit A Since there is a possibility that oil may be collect ed on a stop machine side, install piping between outdoor units to go to level or go up to an outdoor unit, and to make a slope.
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Si38-304 5.2 Piping Installation Point The Example of A Wrong Pattern Wrong × Oil is collected to the outdoor unit at the time of a stop, because of bottom omission of piping. (V3039) Wrong × Oil is collected to the low level outdoor unit at the time of a stop, because of downward slope of piping. ¡¡ The example of installation on which oil is not collected.
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Selection of Pipe Size, Joints and Header Si38-304 6. Selection of Pipe Size, Joints and Header 6.1 RXY5MY1, RXY8MY1, RXY10MY1, RXY12MY1, RXY14MY1, RXY16MY1 6.1.1 How to select the REFNET Joint How to select the REFNET Joint Select the REFNET Joint from the following table when using REFNET Joints at the first branch counted from the outdoor unit side. (Ex.
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Si38-304 Selection of Pipe Size, Joints and Header 6.1.4 Piping between the REFNET Joints Select the proper pipe size using the following table based on the total capacity index of indoor units connected downstream. Connection piping size should not exceed the refrigerant piping size selected by "the model with combination units". Total capacity index <100 Liquid φ9.5 Gas φ15.9 100≤x<160 160≤x<330 φ9.5 φ12.7 φ19.1 φ25.4 330≤x<480 480≤x<640 φ15.9 φ19.1 φ34.9 φ34.9 ≥640 φ19.1 φ41.3 6.1.
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Selection of Pipe Size, Joints and Header 6.2 Si38-304 RXY18MY1, RXY20MY1, RXY22MY1, RXY24MY1, RXY26MY1, RXY28MY1, RXY30MY1, RXY32MY1, RXY34MY1, RXY36MY1, RXY38MY1, RXY40MY1, RXY42MY1, RXY44MY1, RXY46MY1, RXY48MY1 6.2.1 How to select the REFNET Joint How to select the REFNET Joint Select the REFNET Joint from the following table.When using REFNET Joints at the first branch counted from the outdoor unit side. (Ex.
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Si38-304 Selection of Pipe Size, Joints and Header 6.2.3 How to select the REFNET header Select the proper branch kit model based on the total capacity index of indoor units installed after the header using the following table. Total capacity index REFNET Header (Kit Name) <100 100≤x<160 KHRJ26K11H KHRJ26K18H 160≤x<330 330≤x<640 KHRJ26K37H KHRJ26K40H+KHRJ26K40HP (Pipe Size Reducer) ·Branching is impossible between refnet header and indoor unit.
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Selection of Pipe Size, Joints and Header Si38-304 6.2.8 Piping between outdoor Unit and Multi Connection Piping Kit Pipe size for direct connection to outdoor unit must be the same as the connection size of outdoor unit. Outdoor Units Gas Liquid Oil RXY8, 10MY1 RXY12-16MY1 φ28.6 φ34.9 φ12.7 φ15.9 φ6.4 6.2.9 The piping minimum thickness ∗ Select the wall thickness in accordance with revelant local and national regulations. R22 320 Size Material φ6.4 O Minimum thickness t (mm) 0.8 φ9.5 φ12.
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Si38-304 Thermistor Resistance / Temperature Characteristics 7. Thermistor Resistance / Temperature Characteristics Indoor unit For air suction For liquid pipe For gas pipe R1T R2T R3T Outdoor unit For outdoor air For coil For suction pipe For Receiver gas pipe For oil T°C -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Appendix R1T R2T R4T R5T R7T 0.0 197.81 186.53 175.97 166.07 156.80 148.
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Thermistor Resistance / Temperature Characteristics Si38-304 Outdoor Unit Thermistors for Discharge Pipe (R3T) T°C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 322 0.0 640.44 609.31 579.96 552.00 525.63 500.66 477.01 454.60 433.37 413.24 394.16 376.05 358.88 342.58 327.10 312.41 298.45 285.18 272.58 260.60 249.00 238.36 228.05 218.24 208.90 200.00 191.53 183.46 175.77 168.44 161.45 154.79 148.43 142.37 136.
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Si38-304 Pressure Sensor 8. Pressure Sensor High Pressure PH=(VH–0.5)×0.98 Low Pressure PL=(VL–0.5)×0.98 3 PH : Detected Pressure [High Side] MPa PL : Detected Pressure [Low Side] MPa VH : Output Voltage [High Side] VDC VL : Output Voltage [Low Side] VDC Detected Pressure PH, PL (kg/cm²) MPa 30.6 3.0 High Pressure (PH) 25.5 2.5 20.4 2.0 15.3 1.5 Low Pressure (PL) 10.2 1.0 5.1 0.5 0 0 1 2 3 Output Voltage (VH, VL) Appendix : http://splitoff.ru/tehn-doc.
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Method of Replacing The Inverter’s Power Transistors and Diode Modules Si38-304 9. Method of Replacing The Inverter’s Power Transistors and Diode Modules 9.1 Method of Replacing The Inverter’s Power Transistors and Diode Modules Inverter P.C.
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Si38-304 Method of Replacing The Inverter’s Power Transistors and Diode Modules Power Transistor IGBT (On Inverter PC Board) (Decision) If other than given above, the power unit is defective and must be replaced. Note: If using a digital tester, ∞ and continuity may be reversed. Diode Module (Decision) If other than given above, the diode module is defective and must be replaced. Note: Appendix If using a digital tester, ∞ and continuity may be reversed. : http://splitoff.ru/tehn-doc.
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Method of Replacing The Inverter’s Power Transistors and Diode Modules 326 : http://splitoff.ru/tehn-doc.
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Si38-304 Index A E A0 .........................................................................178 A1 .........................................................................179 A3 .........................................................................180 A6 .........................................................................182 A7 .........................................................................183 A9 .........................................................................
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Si38-304 LC ........................................................................217 List of Electrical and Functional Parts ..................298 Indoor Unit .....................................................306 Outdoor Unit ..................................................298 Louver Control for Preventing Ceiling Dirt ............116 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure ..............221 Low Pressure Protection Control .........................
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Si38-304 Indoor Units .....................................................41 Outdoor Units ....................................................8 Standard Compressor Motor Overcurrent/Lock ...197 Startup Control .......................................................96 STD Compressor Overload Protection .................109 Stopping Operation ..............................................102 T Test Operation .....................................................122 Procedure and Outline ...................
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Si38-304 iv : http://splitoff.ru/tehn-doc.
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Si38-304 Drawings & Flow Charts A Abnormal Discharge Pipe Temperature................202 Abnormal Outdoor Fan Motor Signal ....................204 Actuation of High Pressure Switch........................194 Actuation of Low Pressure Sensor........................195 Additional refrigerant charge total flow..................159 Address Duplication of Central Remote Controller..........................................235 Address Duplication, Improper Setting.........
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Si38-304 Malfunction of Discharge Pipe Thermistor (R31~33T)......................................................207 Malfunction of Drain Level Control System (33H) ..............................................................180 Malfunction of High Pressure Sensor....................211 Malfunction of Inverter Radiating Fin Temperature Rise ..........................................213 Malfunction of Inverter Radiating Fin Temperature Rise Sensor ...................................................
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Si38-304 RX8MY1 RX10MY1 RX12MY1.......................278 RXY14MTL RXY16MTL .................................276 RXY14MY1, RXY14MYL RXY16MY1, RXY16MYL ........................................273 RXY5MTL .......................................................274 RXY5MY1, RXY5MYL ....................................271 RXY8MTL RXY10MTL RXY12MTL ................275 RXY8MY1, RXY8MYL RXY10MY1, RXY10MYL RXY12MY1, RXY12MYL ...................272 Wiring Diagrams for ReferenceRX5MY1 ..............
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Si38-304 viii : http://splitoff.ru/tehn-doc.
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Head office: Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka, 530-8323 Japan Zandvoordestraat 300, B-8400 Oostende, Belgium Tokyo office: Shinjuku Sumitomo Bldg., 6-1 Nishi-Shinjuku 2-chome, Shinjuku-ku, Tokyo, 163-0235 Japan l For further improvement, specifications or designs are subject to change without prior notice. Printed in Singapore 08/2003 AK : http://splitoff.ru/tehn-doc.