AIR-COOLED SPLIT-TYPE DUCTED AIR CONDITIONERS DATA BOOK Series : PEH HEAT PUMP : Model PEH-7, 8, 10MYB
CONTENTS SAFETY PRECAUTIONS ----------------------------------------------2 LINE UP --------------------------------------------------------------------4 MODEL-DESIGNATION BREAKDOWN----------------------------5 SPECIFICATIONS -------------------------------------------------------6 ELECTRICAL DATA------------------------------------------------------7 SELECTION PROCEDURE -------------------------------------------8 CAPACITY TABLES ----------------------------------------------------10 OPERATION RANGE------
SAFETY PRECAUTIONS • 1.1. Before installation and electric work s Before installing the unit, make sure you read all the “Safety precautions”. • • s The “Safety precautions” provide very important points regarding safety. Make sure you follow them. • Symbols used in the text • Warning: Describes precautions that should be observed to prevent danger of injury or death to the user. • • Caution: Describes precautions that should be observed to prevent damage to the unit. 1.2.
• Remote controller is not allowed to install for the place where direct sunshine strikes. 1.4. Before starting the test run Caution: • • • • • • • • Turn on the power at least 12 hours before starting operation. - Starting operation immediately after turning on the main power switch can result in severe damage to internal parts. Keep the power switch turned on during the operational season. Do not touch the switches with wet fingers. - Touching a switch with wet fingers can cause electric shock.
LINE UP Cooling capacity (gross) Heating capacity PEH-7MYB PEH-8MYB PEH-10MYB kW 18.8 22.0 28.8 Btu/h 64,200 75,100 98,300 kcal/h 16,200 19,000 24,800 kW 20.1 22.0 28.
MODEL-DESIGNATION BREAKDOWN P E H - 10 M Y B -EU Service reference Design Sequence Electrical Supply Y = 3 phase 380~415V 50Hz 4 wires of PEH-7, 8 Indoor unit ( InY =case 1 phase 220~240V 50Hz 2 wires ) Compressor Horsepower 7 = 7 HP 8 = 7.
SPECIFICATIONS PEH-7~10MYB Model name Service reference indoor Power supply outdoor PEH-7MYB PEH-7MYB-EU PEH-8MYB PEH-8MYB-EU PEH-10MYB PEH-10MYB-EU ~ 220~240V 50Hz 3N~ 380~415V 50Hz 18.8 64,200 ~ 220~240V 50Hz 3N~ 380~415V 50Hz 22.0 75,100 16,200 19,000 18.7 63,800 16,100 3N~ 380~415V 50Hz 3N~ 380~415V 50Hz 28.8 98,300 24,800 24.8 84,600 21,400 21.1 72,000 18,200 22.0 75,100 19,000 27.7 94,500 23,900 28.
ELECTRICAL DATA PEH-7,8,10MYB Cooling TOTAL INPUT TOTAL RUN CURRENT POWER FACTOR START CURRENT kW A % A PEH-7MYB PUH-7MYF 7.2 15.0 69.0 COMPRESSOR INPUT RUN CURRENT INDOOR side External static pressure O/D FAN INPUT RUN CURRENT I/D FAN INPUT RUN CURRENT kW A Pa kW A kW A 6.31 11.5 125 0.19 0.46 0.7 3.0 7.51 13.5 125 0.19 0.45 0.89 4.0 9.55 16.9 150 0.25 0.75 1.12 1.8 TOTAL INPUT TOTAL RUN CURRENT POWER FACTOR START CURRENT kW A % A 7.2 15.2 69.0 8.6 18.0 71.0 10.9 19.6 80% 77.
SELECTION PROCEDURE 1. Model Selection (With actual examples) First step, to select the approximate model: Based on the cooling load and the cooling capacity listed in the capacity table, select the applicable model.
(Step-3) Calculation of net capacity Based on the indoor conditioned temperature (WB,DB), designed outdoor temperature (DB), and the actual air flow obtained in Step-2, obtain the gross capacity from the gross capacity tables (pages 10, 11, 13, 14, 16, 17). Then, calculate the net capacity from the formula below by using the fan motor input obtained in Step-2. Net capacity (kW) = Gross capacity (kW) - Fan motor input (kW) Example: PEH-8MYB Condition: Cooling Indoor conditioned temp.
- 10 - 23. 5 21. 4 22. 2 22. 9 23. 5 24. 1 24. 6 22. 2 22. 9 23. 5 24. 1 24. 6 25. 2 22. 9 23. 5 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 25. 2 22. 9 20 24 22. 2 19 24. 6 21. 4 18 23 20. 9 17 24. 1 20. 3 22 1 0. 9 22. 2 19 16 1 3. 1 1 4. 5 1 5. 6 1 6. 9 1 7. 9 1 1. 1 1 2. 3 1 3. 5 1 4. 6 1 6. 1 1 0. 1 1 7. 3 1 1. 3 1 2. 7 1 3. 8 1 5. 1 1 6. 1 1 0. 3 1 1. 7 1 2. 9 1 3. 9 1 5. 2 1 6. 6 1 2. 0 21. 4 1 3. 1 1 4. 4 1 5. 6 18 20.
- 11 - 21.1 21. 7 19.6 20.3 21.1 21.7 22.4 23. 0 20.3 21.1 21.7 22.4 23.0 23.7 21.1 21.7 20 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 23.7 20.3 19 24 19.6 18 23.0 19.0 17 23 18.4 16 22.4 20. 3 19 22 19.6 18 18.4 16 19.0 17.9 15 17 19.0 17 12. 8 14. 0 15. 0 16. 3 17. 3 10. 4 11. 7 13. 0 14. 1 15. 6 9 .4 16. 6 10. 7 11. 9 13. 1 14. 2 15. 4 9 .6 10. 9 12. 2 13. 3 14. 6 15. 8 9 .9 11. 1 12. 3 13. 4 14. 5 10. 1 11. 2 12.
- 12 - Q kW 13.3 13.1 12.9 12.8 12.6 12.5 12.3 12.2 12.1 12.0 11.9 11.7 11.6 Indoor DB°C 15 16 17 18 19 20 21 22 23 24 25 26 27 -15. 0 kW T/I 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 4.4 4.4 4.3 4.2 4.1 Outdoor WB°C - 10. 0 12. 5 12. 7 12. 9 13. 1 13. 3 13. 5 13. 7 13. 9 14. 0 14. 2 14. 4 14. 5 14. 7 kW Q 5 .5 5 .5 5 .4 5 .3 5 .2 5 .1 5 .0 5 .0 4 .9 4 .8 4 .8 4 .7 4 .6 kW T/I 14. 3 14. 5 14. 7 14. 9 15. 1 15. 3 15. 5 15. 7 15.
- 13 - 26. 8 27. 5 25. 1 26. 0 26. 8 27. 5 28. 2 28. 8 26.0 26. 8 27. 5 28. 2 28. 8 29. 5 26.8 27.5 20 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 29. 5 26. 0 24 25. 1 18 19 28. 8 24. 4 17 23 23.8 16 28. 2 26. 0 19 22 25. 1 18 23. 8 16 24. 4 23. 1 15 17 24. 4 17 1 6. 2 1 7. 9 1 9. 1 20. 6 22. 0 1 3. 9 1 5. 3 1 6. 9 1 8. 2 1 9. 6 20. 8 1 2. 7 1 4. 1 1 5. 7 1 6. 9 1 8. 4 1 9. 6 1 2. 7 1 4. 2 1 5. 6 1 6. 8 1 8. 6 20. 2 1 3.
- 14 - 24.6 25.4 22.9 23.8 24.6 25.4 26.2 27.0 23.8 24.6 25.4 26.2 27.0 27.7 24.6 25.4 20 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 27.7 23.8 19 24 22.9 18 27.0 22.2 17 23 21.6 16 26.2 23.8 19 22 22.9 18 21.6 16 22.2 20.9 15 17 22.2 17 15. 8 17. 2 18. 3 20. 1 21. 4 13. 0 14. 6 16. 0 17. 3 18. 7 19. 7 11. 6 13. 1 14. 7 16. 0 17. 3 18. 3 11. 7 13. 3 14. 7 16. 0 17. 6 18. 8 12. 1 13. 5 14. 7 16. 2 17. 3 12. 2 13. 6 14.
- 15 - Q kW 14.5 14.3 14.2 14.0 13.8 13.6 13.5 13.4 13.2 13.1 13.0 12.8 12.7 Indoor DB°C 15 16 17 18 19 20 21 22 23 24 25 26 27 -15. 0 T/I 5.5 5.4 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 4.5 4.4 4.3 kW Outdoor WB°C - 10. 0 13. 6 13. 9 14. 1 14. 3 14. 5 14. 7 15. 0 15. 2 15. 4 15. 5 15. 7 15. 9 16. 1 kW Q 5 .8 5 .7 5 .6 5 .5 5 .4 5 .3 5 .3 5 .2 5 .1 5 .0 5 .0 4 .9 4 .8 kW T/I 15. 6 15. 8 16. 1 16. 3 16. 5 16. 7 16. 9 17. 2 17.
- 16 - 35. 1 36. 0 32.8 34.0 35.1 36.0 36. 9 37. 7 34.0 35.1 36.0 36.9 37.7 38. 6 35.1 36.0 20 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 38.6 34.0 19 24 32.8 18 37.7 32.0 17 23 31.1 16 36.9 34. 0 19 22 32. 8 18 31.1 16 32.0 30.2 15 17 32. 0 17 21. 2 23. 0 24. 7 26. 3 27. 8 1 8. 1 20. 0 21. 4 23. 0 24. 9 26. 8 1 6. 6 1 8. 4 20. 2 21. 8 23. 4 25. 0 1 6. 6 1 8. 6 20. 4 22. 0 23. 7 25. 5 1 7. 3 1 8. 7 20. 5 22. 1 23.
- 17 - 32.3 33.3 30.0 31.1 32.3 33.3 34.3 35.3 31.1 32.3 33.3 34.3 35.3 36.3 32.3 33.3 20 21 18 19 20 21 22 23 19 20 21 22 23 24 20 21 36.3 31.1 19 24 30.0 35.3 29.1 17 18 23 28.2 16 34.3 31.1 19 22 30.0 18 28.2 16 29.1 27.4 15 17 29.1 17 20. 7 22. 2 23. 6 24. 9 26. 4 17. 1 19. 1 20. 6 22. 3 23. 9 25. 5 15. 5 17. 5 19. 0 20. 6 22. 1 23. 7 15. 3 17. 4 19. 0 20. 7 22. 7 24. 3 16. 2 17. 7 19. 5 21. 2 22. 4 16. 3 18. 1 19.
- 18 - Q kW 19.0 18.8 18.5 18.3 18.1 17.9 17.7 17.5 17.3 17.2 17.0 16.8 16.6 Indoor DB°C 15 16 17 18 19 20 21 22 23 24 25 26 27 -15. 0 6.8 6.7 6.5 6.4 6.2 6.1 6.0 5.8 5.7 5.6 5.6 5.5 5.4 kW T/I Outdoor WB°C - 10. 0 17. 9 18. 1 18. 4 18. 7 19. 0 19. 3 19. 6 19. 9 20. 1 20. 3 20. 6 20. 8 21. 0 kW Q 7 .2 7 .1 7 .0 6 .9 6 .8 6 .7 6 .5 6 .4 6 .4 6 .3 6 .2 6 .1 6 .0 kW T/I 20. 4 20. 7 21. 0 21. 3 21. 6 21. 9 22. 2 22. 5 22.
OPERATION RANGE The range of working temperatures is as below. Make sure which unit you are using and confirm the range of application. Heating Cooling 15 Outdoor temp.(˚CWB) Outdoor temp.(˚CDB) 50 46 40 30 Range for continuous operation 20 10 0 -5 -10 10 15 20 24 25 30 10 5 Range for continuous operation 0 -5 -10 -15 10 Indoor temp.(˚CWB) 15 20 25 27 30 Indoor temp.
FAN PERFORMANCE PEH-7MYB Fan Performance Curve 50Hz (Pa) 450 400 Recommended Range Fan speed (rpm) 1400 350 Total static pressure 1300 For Hi speed operation line 300 1200 250 200 150 1100 For Low speed operation line 1000 900 800 100 l SP rna Inte 50 0 48 50 800 833 55 917 60 1,000 65 1,083 70 1,167 75 (CMM) 1,250 (L/S) Air flow factory pre setting ESP = 125Pa PEH-10MYB PEH-8MYB Fan Performance Curve 50Hz (Pa) 450 400 (Pa) 400 For Hi speed operation line 300 Total static pressur
SOUND DATA Indoor units Sound Levels OCTAVE BAND FREQ. Hz SPL dB(A) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz PEH-7MYB 55 62 60 54 53 50 42.5 37 31.5 PEH-8MYB 56 63 61 55 54 51 43.5 38 32.5 PEH-10MYB 59 62 62.5 58.5 59.5 53 48 43.5 36 MODEL Outdoor units Sound Levels OCTAVE BAND FREQ. Hz SPL dB(A) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz cool 59 65 63 63.
OUTLINE DIMENSIONS (unit; mm) PEH-7,8MYB *Except: Drain size (unit; inch) 104 1102 130 130 130 130 34 130 130 130 130 31 24-ø3.1 HOLES 40 AIR INLET DUCT FLANGE 199 100 31 1280 20 22-ø3.
PUH-7,8,10MYF (Standard) AIR INLET A 30 1212 20 4-ø15 HOLES (HUNGING) DETAIL A AIR INLET 30 20 490 30 490(BOLT PITCH) 10 AIR OUTLET B 20 4-10X20 HOLES (FOR MOUNTING ANCHOR BOLT M8) 20 550 1180 20 20 1180 30 20 550 490 1212(BOLT PITCH) 10 1212 20 DETAIL B 1480 CONTROL BOX 66 30 170 REFRAIGERANT PIPE 7,8MYF:ø25.4(1 FLANGE) 10MYF:ø28.6(1-1/8 FLANGE) 142 95 REFRAIGERANT PIPE ø15.
CENTER OF GRAVITY (Outdoor unit) (1) Caution for lifting G Z X Y G : Center of gravity Item Center of gravity(mm) Model name X Y Z Net weight (kg) PUH-7MYF 290 490 510 188 PUH-8MYF 290 490 510 188 PUH-10MYF 280 480 500 221 - 24 -
WIRING DIAGRAMS PEH-7,8MYB REMOTE CONTROLLER REMOTE CONTROLLER BOARD CN TB6 LCD POWER SUPPLY ~PE 220/230/240V 50HZ PE TB2 52F 51F RED L1 L2 L3 N PE X2-1 RED C01 C01 1 X1-1 BROWN 2 MF1 5 C 6 BLUE TH6 4 TH4 PE PE 1 2 TB5 TH5 1 2 CN22 1 2 CN90 3 4 5 6 7 8 9 PE INLET DUCT PE OUTLET DUCT 5 4 3 2 1 1 2 CN41 3 SW1 4 4 3 2 1 1 CN29 2 INDOOR 1 2 CN2L CONTROLLER BOARD 1 2 CN32 3 LED2 1 CN21 2 SWE 1 CN20 2 X4 X5 X6 LED3 ON OFF X4 X5 X6 7 5 3 1 CN03 DC14V ON OFF SW2 LED1 2 1 CN
PEH-10MYB REMOTE CONTROLLER REMOTE CONTROLLER BOARD CN TB6 LCD CIRCUIT BREAKER (FIELD SUPPLY) PEH-10MYB-EU :15A POWER SUPPLY 3N~PE 380/400/415V 50HZ Attach the accessory Remove PE C01 C02 1 1 MF1 2 2 3 3 PE TB2 L1 L2 L3 N PE 52F 51F C01 RED WHITE BLACK 1 2 3 C02 MF1 2 3 1 1 2 3 This circuit diagram shows connections. (If the external static pressure is less than 30 pa, change to connections.
PUH-7,8,10MYF ( 1) MF2 MC TH1 ( 1) MF3 Red White Black 49C 51C 1 CN23 (3P) CNMNT (5P) CN40 (6P) TH3 2 1 2 1 2 1 CN2 (2P) CN3 (2P) CN4 (2P) 3 1 1 1 3 1 1 3 (3P) (3P) C11 C22 (3P) C12 N V 52C 5 CH CNFAN 1 (5P) CNFC2 (6P) F.C.
REFRIGERANT SCHEMATICS PEH-7,8,10MYB PUH-7,8,10MYF INDOOR PEH Sensor Inlet air (TH6) Sensor (TH4) OUTDOOR PUH Heat exchanger Extension pipe (Field supply) (21S4) 4-Way valve Sensor Heat exchanger Condensing, Evaporating Temp.
SAFETY & CONTROL DEVICES PEH-7,8,10MYB PUH-7,8,10MYF NO. PEH-7MYB PUH-7MYF PEH-8MYB PUH-8MYF PEH-10MYB PUH-10MYF COMPRESSOR OVER CURRENT RELAY 51C 19.0A 22.0A 31.0A COMPRESSOR INTERNAL THERMOSTAT 49C ITEM 105 ± 5 °C off 3.3 HIGH PRESSURE SWITCH INDOOR FAN MOTOR OVER CURRENT RELAY 51F 5A +0 -0.15 83±11 °C on MPa off 6.
OPTION PEH-7MYB PUH-7MYF ITEM OUTDOOR UNIT AIR OUTLET GUIDE PEH-8MYB PUH-8MYF PAC-207FG M-NET ADAPTOR PAC-SF48MA-E ✻1 : Outdoor unit with air outlet guide is special order in some customers.
INSTALLATION 1. Indoor unit 1-1. Accessory The unit is provided with the following accessory: [Fig. 1-1.0.1] A B A Air outlet B Remote controller (accessary) Selecting an installation site Select a site with sturdy fixed surface sufficiently durable against the weight of unit. Service space • Before installing unit, the routing to carry in unit to the installation site should be determined. [Fig. 1-2.2.1] • Select a site where the unit is not affected by entering air.
1-3. Fixing hanging bolts 1-3.1. Fixing hanging bolts [Fig. 1-3.1.1] (Use M10 hanging bolts. The bolts should be supplied in the field.) (Give site of suspension strong structure.) E Hanging structure • E Ceiling: The ceiling structure varies from one building to one another. For detailed information, consult your construction company. A 1 Reinforcing the ceiling with additional members (edge beam, etc) must be required to keep the ceiling at level and to prevent the ceiling from vibrations.
1-4.2. Confirming the unit’s position and fixing hanging bolts [Fig. 1-4.2.1] s Use the gage supplied with the panel to confirm that the unit body and hanging bolts are positioned in place. If they are not positioned in place, it may result in dew drops due to wind leak. Be sure to check the positional relationship. s Use a level to check that the surface indicated by A is at level. Ensure that the hanging bolt nuts are tightened to fix the hanging bolts.
Caution: • • • Use refrigerant piping made of C1220 (CU-DHP) phosphorus deoxidized copper as specified in the JIS H3300 “Copper and copper alloy seamless pipes and tubes”. In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant. Never use existing refrigerant piping.
1 Pull out the sensor, and remove the sensor fixture. [Fig. 1-7.0.3] 2 Connect the inlet duct. 1302 A PEH-10 PEH-7,8 1102 B 3 Drill a sensor hole (ø12.5 dia.) on the side on the duct. 34 20 PEH-10 66 PEH-7,8 31 60 A 380 H 4 Assemble the sensor and fixiture. • When pulling out the sensor, do not pull it by the lead wire. Doing so may result in wire breakage. • Before connecting the inlet duct, make sure that the sensor and its fixture are removed.
Caution: 1-8.2. Connecting procedures • • The remote controller cord may be extended up to 500 m. Since the remote controller cord supplied with the unit is 10 m-long, use those electric wires or (two-core) cables of 0.3 mm2 to 1.25 mm2 for extension. Do not use multiconductor cables to prevent possible malfunction of the unit. (1) Connect the remote controller cord to the terminal block for the lower case. [Fig. 1-8.2.
4 Setting the refrigerant address/unit number [Fig. 1-8.4.2] Press the E MODE button to designate the refrigerant address/unit number. [1 display momentarily. -] will flash in the mode number ⁄ 6 1Hr. ON OFF CLOCK FILTER ˚C STAND BY DEFROST * ˚C CLOCK CHECK MODE INDOOR UNIT ADDRESS NO FUNCTION 2 Fan draft operation will start when settings are confirmed using the E MODE button.
Other function selections Now that you know how to change the power voltage setting, there are several other settings that can be changed as well. The following Table lists the various settings that can be changed through the remote controller and the default settings of the various units. Table 1 Function Power failure automatic recovery Indoor temperature detecting LOSSNAY connectivity Power voltage Filter sign Fan speed No.
1-9. Electrical wiring Precautions on electrical wiring [Wiring example] (For metal piping) Warning: Breaker Capacity Fuse PEH-7, 8MYB 2.0 mm2 or thicker 15 A 15 A 2.0 mm2 or thicker 15 A 15 A Power Cable Electrical work should be done by qualified electrical engineers in accordance with “Engineering Standards For Electrical Installation” and supplied installation manuals. Special circuits should also be used.
2. Outdoor unit 2-1. Confirmation of parts attached 1 Connecting pipe × 1 (Connecting pipe is attached in front of compressor.) 2-2. 2 Packing (inside ø23, outside ø35) × 1 Space required around unit [Fig. 2-2.0.1] B A 150 over B 150 over 150 over 500 over (1) Basic space required (in case of ) A space of at least 150 mm is necessary at the inlet surface. Taking servicing, etc. at the service panel side, a space of at least 500 mm should be provided and outlet side is open.
2-5. Refrigerant piping installation Flare connection must be applied to the indoor unit and liquid piping of the outdoor unit, whilst flange connection must be applied to the gas piping of the outdoor unit. For the branching, brazing connection must be applied. 8 Always use a non-oxidizing brazing material for brazing the parts. If a nonoxidizing brazing material is not used, it could cause clogging or damage to the compressor unit. 9 Never perform outdoor unit piping connection work when it is raining.
A Valve stem [Fully closed at the factory, when connecting the piping, when evacuating, and when charging additional refrigerant. Open fully after the operations above are completed.] [Fig. 2-6.2.3] B Stopper pin [Prevents the valve stem from turning 90° or more.] C Packing (Accessory) [Manufacturer: Nichiasu corporation] [Type: T/#1991-NF] D Connecting pipe (Accessory) [Use packing and securely install this pipe to the valve flange so that gas leakage will not occur.
2 Evacuation Evacuate with the ball valve of the outdoor unit closed and evacuate both the connection piping and the indoor unit from the service port provided on the ball valve of the outdoor unit using a vacuum pump. (Always evacuate from the service port of both the liquid pipe and the gas pipe.) After the vacuum reaches 5 Torr, continue evacuation for at least one hour or more. * Never perform air purging using refrigerant.
2-7.2. Wiring and fitting capacities Main wire Indoor Outdoor Unit Unit Electrical work Main power supply wire thickness and switch capacities. Power supply thickness *1 Overcurrent protector *2 Power supply thickness *1 Overcurrent protector *2 PUH-7, 8 PUH-10 mm2 8 or more 14 or more A 50 60 mm2 2.
TEST RUN 1.1. Before test run Operating procedures The test run can be carried out either from the outdoor unit or the indoor unit. 1 Turn on the main power supply While the room temperature display on the remote controller reads “CENTRALLY CONTROLLED”, the remote controller is disabled. Turn off the “CENTRALLY CONTROLLED” display before using the remote controller. 1.
[Fig. 1.3.1] 2) Outdoor unit 3 (1) 1) Check Items • 1Hr. • Check that there is no negative phase and open phase. (The F1 message for negative phase and the F2 message for open phase will flash at LED 1 on the outdoor substrate. If this happens, rewire correctly.) • / Measure the impedance between power terminals (Single phase: L, N, ) and the ground with a 500 V Megger and check triple phase: L1, L2, L3, N, that it is 1.0 MΩ or more. Do not operate the equipment if measurement is less than 1.0 MΩ.
5 Canceling self-diagnosis 1 First, check the electricity current marker The following two methods can be used to cancel self-diagnosis. If the correct voltage (DC 12 V) is not displayed on the remote controller, the electric current marker will be lit. Press the CHECK button twice within three seconds to cancel self-diagnosis. The display screen will return to the status before self-diagnosis. If the electricity current marker is not lit, check the remote controller wiring and the indoor units.
STANDARD OPERATION DATA (1) PEH-7MYB/PUH-7MYF Cooling Refrigerant circuit Electrical characteristics Operation condition Operation condition Heating Voltage V 380 400 415 380 400 Power source frequency Hz 50 50 50 50 50 50 Indoor air conditioning (DB/WB) ˚C 27/19 27/19 27/19 20/- 20/- 20/- Outdoor air conditioning (DB/WB) ˚C 35/24 35/24 35/24 7/6 7/6 7/6 Piping length m 5 5 5 5 5 5 Refrigerant charge kg 5.7 5.7 5.7 5.7 5.7 5.7 11.
SERVICE DATA 1 CONTROL [1] Composition of Control Indoor/outdoor connection terminal block 3N~ 380/400/415 V 50 Hz Electrical terminal block 1 Function block diagram outdoor Magnetic contractor Fuse Transformer Fuse DC5V for microcomputer Indoor/outdoor connection terminal block Communication circuit Fuse Fuse Semiconductor relay 4-way valve, solenoid valve, crankcase heater Fan control Outdoor fan DC/DC converter Semiconductor relay LED1 indoor Remote controller terminal block
[2] Control specifications (1) Protection functions 1) The main protection devices for the outdoor unit are: 1 High pressure protection (63H1) 2 Compressor overcurrent protection (51C) 3 Liquid temp thermistor trouble (TH1) 4 Discharge temperature protection (TH2 >= 135 °C) 5 Discharge temp thermistor trouble (TH2) 6 Condenser/evaporater temp thermistor trouble (TH3) 2) When tripping of a detection device is sensed, the check mode is entered and the compressor is stopped.
(3) Fan control Controls the fan speed based on the piping temperature (TH1) to perform cooling at low outdoor temperatures and heating at high outdoor temperatures. 1) Control at cooling 1 When the compressor stops, the fan stops (fan output = 0 %). 2 When the power is turned on, or when the compressor is restarted after it has been stopped for 30 minutes or longer, the piping temperature ( TH1) determines the fan output.
2) Control at heating 1 When the compressor is stopped and during defrosting, the fan is stopped. 2 When the power is turned on, or when the compressor is restarted after being stopped for 30 minutes or longer, the piping temperature (TH1) determines the fan step. TH1 > 8 °C Fan output = 60 % TH1 =< 8 °C Fan output = 100 % 3 When the compressor is restarted within 30 minutes, the fan step is the step before the compressor was stopped.
(5) Bypass solenoid valve control (SV1) 1) Control at cooling 1 While the compressor is stopped, the solenoid valve is OFF. 2 When the power is turned on, or when the compressor is restarted after it has been stopped for 30 minutes or longer, if the liquid temperature (TH1) in 25 °C or higher then the solenoid valve turns ON for 2 minutes. 3 When the mode is changed from heating to cooling, solenoid valve operation conforms to item 2.
[3] Function of switches and connectors (outdoor unit) (1) Function of switches 1) Function of switches (Normal mode) Kind of switch Switch SW1 CN33 When open (Normal) DIP SW Pole Function 1 None 2 Abnormality history clear Normal mode SW3 = Unrelated Operation by switch operation ON OFF – – Clear 123456 3 ON OFF 4 ON OFF 0 123456 5 Refrigerant system address setting 5 123456 10 SW2 Tact SW DIP SW 8 123456 ON OFF 12 4 123456 ON OFF 9 123456 ON OFF 13 14 Running or stopped See
The operation status and check code contents can be ascertained by means of the 2-digit number and symbol on digital display light emitting diode LED2 by operating DIP switch SW2. • When ON (normal operation): Displays the operation mode.
Self diagnosis by SW2 • PUH-7, 8, 10MYF SW2 setting Display contents Description of display 123456 Liquid temperature (TH1) –39 - 88 –39 - 88 (When 0 °C or lower, “–”and temperature are displayed alternately.) When –10, every other second – ←→ 10 °C 123456 Discharge temperature (TH2) 0 - 216 0 - 216 (When 100 or higher, 100s digit and 10s and units digits are displayed alternately.
SW2 setting 123456 ON OFF Display contents Description of display Newest check code Newest outdoor unit abnormality Check display When no check mode,“00” When piping thermistor abnormal U4 Operation mode when abnormality occurred Operation mode when abnormally stopped Comp only ON at cooling operation C4 Unit Code display 123456 ON OFF Code display Liquid temperature (TH1) when abnormality occurred – 39 - 88 –39 - 88 (When 0 °C or lower, “–” and temperature are displayed alt
SW2 setting Display contents Outdoor unit set information 1 Description of display Outdoor unit capacity is displayed as function code.
SW2 setting 123456 Display contents Indoor unit control status Indoor 1, 2 ON OFF Description of display Control mode display system – Indoor unit No.2 Indoor unit No.4 Indoor unit No.1 Indoor unit No.3 Display 123456 0 1 2 3 4 5 6 7 Indoor unit control status Indoor 3, 4 ON OFF Condenser/evaporater temperature (TH3) 123456 ON OFF Outdoor unit control status Display 0 1 2 3 4 5 6 7 123456 ON OFF 123456 °C Indoor unit No.1 Indoor unit No.
SW2 setting 123456 Display contents Communication demand capacity 0 - 255 ON OFF Description of display 0 - 255 When communication demand not set: 100 % (When 100 or higher, 100s digit and 10s and units digits are displayed alternately.
SW2 setting Display contents Unit Thermostat ON time up to abnormal stop 0 - 999 0 - 999 (When 100 or higher, 100s digit and 10s and units digits are displayed alternately.) When 245, every other second 2 ←→ 45 123456 Indoor unit condenser/ evaporater temp temperature (TH3) Indoor 1 –39 - 88 –39 - 88 (When 0 °C or lower, “–”and temperature are displayed alternately.) When there are no indoor units, “00” is displayed.
[4] Simple parts check method Part name Judgment instructions Thermistor (TH1) Thermistor (TH2) Thermistor (TH3) Disconnect the connector and measure the resistance value with a multimeter. (Ambient temperature 10 °C to 30 °C) Fan motor Measure the resistance value across the terminals with a multimeter.
[5] Reference Data Low temperature thermistor Thermistor (TH1) Thermistor (TH3) Thermistor (TH1) Thermistor (TH3) Thermistor Ro = 15 kΩ ± 3 % B constant = 3,460 kΩ ± 2 % 1 273 + t 1 273 Rt = 15 exp {3,460 (–––––– – ––––)} 40 15 kΩ 9.7 kΩ 6.4 kΩ 5.3 kΩ 4.3 kΩ 3.
[6] Emergency operation 1) When the following check displays occur at the outdoor unit, or when the wired remote controller or indoor unit microcomputer fails, if there are no other defects, emergency operation is possible by shorting the connector (CN31) on the outdoor controller board.
4) Emergency operation method * Before starting, recheck that the trouble allows emergency operation.
[7] Self-diagnosis and troubleshooting Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting Cause Judgment method and remedy 1 Voltage not applied to outdoor unit ter- 1 minal block TB1. a. Check power supply circuit breaker. a. Power supply circuit breaker not b. Check power supply terminal block closed. connections. b. Power supply terminals connection c. Check power supply terminal block faulty, or disconnected. connections. c.
Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting U2 Cause Judgment method and remedy Discharge temperature abnormal 1 Compressor overheating due to insuf- 1 Check input super heat. ficient refrigerant. When the discharge thermistor temCheck for refrigerant leakage and check perature (TH2) exceeds 135 °C while piping length. the compressor is operating, an abCharge with additional refrigerant.
Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting Cause EO Remote controller communica- 1 Remote controller send/receive tions receive abnormal (remote circuit faulty. controller). 2 Refrigerant address “0” indoor control1) When transmission from refrigerler board send/receive circuit faulty. ant address “0” IC is not received 3 Noise entered on remote controller normally even once in 3 minutes, transmission line. an abnormality is recognized.
Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting P1 P2 Cause Judgment method and remedy Intake sensor abnormal 1) If thermistor open or short is detected and the compressor enters the 3 minutes restart prevention mode and does not return to normal after 3 minutes, an abnormality is recognized. (If returned, returns to normal operation.) 2) Always detected during cool, dry, and heat operations.
Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting P6 Freezing/excessive rise protection operation 1) Freezing protection When the piping temperature remains at –15 °C or lower for 3 minutes after 3 minutes have elapsed since the compressor started, the compressor enters the 6 minutes restart prohibit mode and if the piping temperature again remains at –15 °C for 3 minutes within 16 minutes after 6 minutes restarti
Abnormal- Meaning of abnormality display and ity display abnormality troubleshooting P8 E4 Cause Judgment method and remedy Piping temperature abnormal When the piping temperature stays outside the cooling area for 1 minute after 3 minutes have elapsed since the compressor was started, the indoor fan operates at low speed.
Symptom and operation when normal Cause Symptom judgment and remedy 1. No remote controller display 1 DC14 V is not supplied to remote con- 1 Check LED2 on indoor controller board. troller. 1) Steady light (No power O display on liquid crystal Check remote controller wire open or faulty panel.) contact. 2 DC14V is supplied to remote controller 2) Flashing but nothing is displayed. Check for remote controller wire short.
Symptom and operation when normal 7. Remote controller display is normal and heating operation is performed but without any capacity (does not heat). Cause Symptom judgment and remedy 1 Insufficient refrigerant. 1 - Since the discharge temperature rises when 2 Refrigerant piping heat insulation insuffithere is leakage, judge by measuring the temcient. perature. 3 Filter clogged. - Check piping connections, etc. for gas leak4 Indoor unit heat exchanger clogged. age. 5 Air duct short cycle.
Erroneous wiring contents Condition Outdoor side S1 S2 S3 Indoor side Trial run S1 (relocation) S2 S3 Outdoor side S1 S2 S3 Indoor side Trial run S1 S2 relocation S3 Outdoor side S1 S2 S3 Indoor side Trial run S1 S2 relocation S3 Outdoor side S1 S2 S3 Indoor side Trial run S1 S2 relocation S3 Outdoor side S1 S2 S3 Indoor side Trial run S1 S2 relocation S3 Outdoor side S1 S2 S3 Indoor side Trial run S1 S2 relocation S3 Outdoor
INSTRUCTIONS FOR USE 1. Check points for operation Check the following points before you operate your air conditioner. (1)Check that there is nothing blocking the flow of air from the air outlet into the air inlet. Indoor unit Inlet grille Outlet grille Ceiling Ceiling Obstacle blocking air inlet Obstacle blocking air outlet Outdoor unit Obstacle blocking air inlet/outlet (2)Make sure the air conditioner is properly grounded by checking the ground terminal.
2. Caution for use Keep the following points in mind to safeguard against failures and breakdowns. (1) This air conditioner does not restart within 3min. after shut down.(These models have a crankcase heater in the compressor. If the air conditioner is shut down for a short time, please do not turn the power switch to OFF, but turn the operation switch to OFF.) (2) If the air conditioner is shut down by a power failure, set the operation switch to OFF.
3.3 Cleaning the Outdoor Unit Heat Exchanger If you use your air conditioner for prolonged periods, the outdoor heat exchanger will become dirty, impairing its function and reducing air conditioners performance. Consult your equipment supplier or air conditioning contractor on how to clean the heat exchanger. 4. When beginning to use air conditioner again Please turn on the power supply after confirming an following check is done and abnormality is not found.
7. Transferring work, and construction 7.1 Transfer of installation 1. When removing and reinstalling the air conditioner when you enlarge your home, remodel, or move, consult with your dealer in advance to ascertain the cost of the professional engineering work required for transferring the installation. 2. Please do not mix the one other than a specified refrigerant when you add the refrigerant (R-22) at the installation and the transferring. 3.
SPECIFICATION GUIDELINES Air to air reverse cycle split air conditioning system. The systems shall operate at out door ambient temperatures as high as __ ºC. The system shall have a total cooling capacity of __kW or greater with an indoor air quantity of __ L/s at __ ºC DB and __ ºC WB entering indoor coil temperature with a __ ºC temperature entering the outdoor coil. The system shall have a sensible heat capacity of kW or greater with a room DB temperature of __ ºC.
DATA BOOK Issuued in Jan. 2003 MEE02K133-A Printed in Japan. PEH-MYB New publication effective Jan. 2003. Specifications subject to change without notice.
