Models: A5CM 20 E/ER A5CM 25 E/ER A5CM 28 E/ER Ceiling Convertible Split Systems ACM - E- 2006
CONTENTS 1. NOMENECLATURE ................................................................................................... 1 2. FEATURES ................................................................................................................ 3 3. PRODUCT LINE-UP .................................................................................................. 4 4. SPECIFICATIONS ..................................................................................................... 7 5.
1.
Outdoor Others A : First issue Air Treatment Devices & Control O B G H : Standard unit : With Contactor : Low Ambient Unit : High ambient unit I L S X : Gold Fin : Long Piping Unit : With H/L Pressure Switch :Oxygen Unit Contoller Type P : Matsushita Rotary M :Mitsubishi Rotary T : Toshiba Rotary Market Region C : Export with CE marking E : Export without marking U : ETL Spec.
2. FEATURES CEILING AND FLOOR INSTALLATION OPTION The unit is uniquely designed with the option to install either below the ceiling or mounted at low wall position without any modification needed. Furthermore, the unit is design adds a touch of elegance to suit any interior design requirement EXCELLENT AIR DISTRIBUTION The louver with automatic air swing function fully optimize the room comfort by enables the air flow to be evenly distributed into the room from the front discharge area.
3. PRODUCT LINE UP INDOOR UNIT ACM-E SERIES PRODUCT LINE UP Heat Pump Model Cooling Model 20E 25E 28E 20ER 25ER 28ER ACGIA X X X X ACGNA X X X X ACGIA X X X X ACGNA X X X X ACGIA X X X X ACGNA X X X X ACGIA X X X X ACGNA X X X X ACGIA X X X X ACGNA X X X X ACGIA X X X X ACGNA X X X X Cap. Tube NTP Ionizer Hydrophilic (SLIT) Fin X W/out Cap.
Rotary CE Marking A5LC ACPOA X X X 25C ACPOA X X X 28C ACPOA X X X 35C FCCOA X 20CR ACPOA X X X 25CR ACPOA X X X 28CR ACPOA X X X 35CR FCCOA X X X 5 X X X X X X X X X X X X X X X ETL Copeland Scroll Comp. Special Refrigerant Ctrl + Fin Marking Compressor Grille Safety Devices Drain Elbow Phase Sequencer Nantong Press. SW Low Pressure Switch High Pressure Switch Contactor Low Ambient Kit High Ambient Kit Gold Fin TXV Cap.
General Data - Cooling Only (R410A) INDOOR UNIT A5CM 20E A5CM 25E OUTDOOR UNIT A5LC 20C A5LC 25C Btu/h 17500 20000 W 5130 5860 NOMINAL TOTAL INPUT POWER W 1723 1973 NOMINAL RUNNING CURRENT A 7.6 MODEL NOMINAL CAPACITY POWER SOURCE V/Ph/Hz R410A / OUTDOOR CAP.
General Data - Cooling Only (R410A) INDOOR UNIT MODEL A5CM 28E OUTDOOR UNIT A5LC 28C A5LC 35C Btu/h 27000 30000 W 7900 8790 NOMINAL TOTAL INPUT POWER W 2754 2784 NOMINAL RUNNING CURRENT A 13.0 5.3 NOMINAL CAPACITY POWER SOURCE CONTROL INDOOR UNIT 380 - 415 / 3 / 50 R410A / OUTDOOR CAP.
General Data - Heatpump (R410A) MODEL INDOOR UNIT A5CM 20ER A5CM 25ER OUTDOOR UNIT A5LC 20CR A5LC 25CR Btu/h 17500 20000 W 5130 5860 Btu/h 18500 22000 NOMINAL COOLING CAPACITY NOMINAL HEATING CAPACITY W 5420 6450 NOMINAL TOTAL INPUT POWER (COOLING) W 1723 1973 NOMINAL TOTAL INPUT POWER (HEATING) W 1493 2003 NOMINAL RUNNING CURRENT (COOLING) A 7.6 8.9 NOMINAL RUNNING CURRENT (HEATING) A 6.6 POWER SOURCE R410A / OUTDOOR CAP.
General Data - Heatpump (R410A) INDOOR UNIT MODEL A5CM 28ER OUTDOOR UNIT NOMINAL COOLING CAPACITY NOMINAL HEATING CAPACITY A5LC 28CR A5LC 35CR Btu/h 27000 30000 W 7900 8790 Btu/h 27500 31000 W 8050 9090 NOMINAL TOTAL INPUT POWER (COOLING) W 2754 2784 NOMINAL TOTAL INPUT POWER (HEATING) W 2455 2634 NOMINAL RUNNING CURRENT (COOLING) A 13.0 5.3 NOMINAL RUNNING CURRENT (HEATING) A 11.8 5.0 V/Ph/Hz 220 - 240 / 1 / 50 380 - 415 / 3 / 50 R410A / OUTDOOR CAP.
Electrical Data - Cooling Only (R410A) MODEL INDOOR UNIT A5CM 20E OUTDOOR UNIT A5LC 20C POWER SOURCE INDOOR MOTOR 220 - 240 / 1 / 50 V/Ph/Hz W 101 109 RATED RUNNING CURRENT A 0.46 0.49 MOTOR OUTPUT W 50 65 RATED INPUT POWER POLES 4 POWER SOURCE 220 - 240 / 1 / 50 V/Ph/Hz W 120 132 RATED RUNNING CURRENT A 0.53 0.58 MOTOR OUTPUT W 64 64 RATED INPUT POWER POLES 6 POWER SOURCE MODEL 220 - 240 / 1 / 50 V/Ph/Hz CAPACITOR PF 50.0 50.
Electrical Data - Heatpump (R410A) MODEL INDOOR UNIT A5CM 20ER OUTDOOR UNIT A5LC 20CR INDOOR MOTOR 220 - 240 / 1 / 50 V/Ph/Hz W 101 109 RATED RUNNING CURRENT A 0.46 0.49 MOTOR OUTPUT W 50 65 RATED INPUT POWER POLES 4 POWER SOURCE 220 - 240 / 1 / 50 V/Ph/Hz W 120 132 RATED RUNNING CURRENT A 0.53 0.58 MOTOR OUTPUT W 64 64 RATED INPUT POWER POLES 6 POWER SOURCE MODEL 220 - 240 / 1 / 50 V/Ph/Hz CAPACITOR PF 50.0 50.
Components Data (R410A) MODEL INDOOR UNIT A5CM 20E OUTDOOR UNIT A5LC 20C A5CM 25E A5LC 25C CROSS FLOW TYPE INDOOR FAN INDOOR FAN MOTOR QUANTITY 2 MATERIAL ABS DIRECT DRIVE DIAMETER mm/in 146 / 5.75 LENGTH mm/in 200 / 7.
Components Data (R410A) MODEL INDOOR UNIT A5CM 28E OUTDOOR UNIT A5LC 28C A5LC 35C CROSS FLOW TYPE INDOOR FAN INDOOR FAN MOTOR QUANTITY 2 MATERIAL ABS DIRECT DRIVE DIAMETER mm/in 146 / 5.75 LENGTH mm/in 200 / 7.
Components Data (R410A) MODEL INDOOR UNIT A5CM 20ER OUTDOOR UNIT A5LC 20CR A5CM 25ER A5LC 25CR CROSS FLOW TYPE INDOOR FAN INDOOR FAN MOTOR QUANTITY 2 MATERIAL ABS DIRECT DRIVE DIAMETER mm/in 146 / 5.75 LENGTH mm/in 200 / 7.
Components Data (R410A) MODEL INDOOR UNIT A5CM 28ER OUTDOOR UNIT A5LC 28CR A5LC 35CR CROSS FLOW TYPE 2 Q'TY INDOOR FAN INDOOR FAN MOTOR ABS MATERIAL DIRECT DRIVE DIAMETER mm/in 146 / 5.75 LENGTH mm/in 200 / 7.
Safety Devices MODEL INDOOR UNIT A5CM 20E OUTDOOR UNIT A5LC 20C SAFETY DEVICE OPEN kPa / psi N/A CLOSE kPa / psi N/A N/A TYPE LOW PRESSURE SWITCH OPEN kPa / psi N/A CLOSE kPa / psi N/A N/A PHASE SEQUENCER DISCHARGE THERMOSTAT SETTING MODEL A5CM 28E OUTDOOR UNIT A5LC 28C TYPE SAFETY DEVICE NC kPa / psi N/A 4137 / 600 CLOSE kPa / psi N/A 3310 / 480 TYPE LOW PRESSURE SWITCH N/A NC OPEN kPa / psi N/A 48 / 7 CLOSE kPa / psi N/A 152 / 22 N/A YES N/A 130 / 266 INDOOR
5. OPERATING RANGE Ensure the operating temperature is in allowable range. Cooling only Outdoor temp. (°CDB) 54 High ambient unit 46 Standard point 35 Caution : The use of your air conditioner outside the range of working temperature and humidity can result in serious failure. 19 Low ambient kit -5 24 15 Indoor temp. (°CWB) Heatpump Heating Cooling 54 Outdoor temp. (°CDB) Outdoor temp.
6. PERFORMANCE TABLE Interpolation and Extrapolation method can be used to get the total capacity, TC and sensible capacity, SC at those temperatures which are not stated out in the table. Example: Model: ACM 20E - ALC 20C Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Solution: Overall Based on the Performance table on Pg. 37, 1. Refer to the Indoor DB column, - 23°C is located between 20°C and 24°C (Thus, Interpolation need to be applied) 2.
Details: 1st Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 24°C DB, 15°C WB Outdoor Condition: 35°C DB Indoor DB °C Indoor WB °C 24 15 16 17 Outdoor DB ° C 35 TC (kW) SC (kW) x1 5.211 5.350 y1 3.749 3.510 Total capacity, TC ⇒ x1 = 5.071kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)* Sensible capacity, SC Extrapolation Method: ⇒ 17°C - 15°C = 17°C - 16°C 3.510kW - y 1 3.510kW - 3.749kW ⇒ y1 = 3.
2nd Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 35°C DB Indoor DB °C Indoor WB °C 20 23 24 15 15 15 Outdoor DB ° C 35 TC (kW) SC (kW) 5.071 x3 5.071 2.984 y3 3.988 Total capacity, TC ⇒ x3 = 5.071kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)* Sensible capacity, SC Interpolation Method: ⇒ 24°C - 20°C 3.988kW - 2.984kW = 24°C - 23°C 3.988kW - y 3 ⇒ y3 = 3.
3rd Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB 35 Indoor DB °C Indoor WB °C TC (kW) 24 15 5.071 Outdoor DB ° C 37 SC (kW) TC (kW) SC (kW) 3.737 Total capacity, TC Interpolation Method: 40°C - 35°C = 4.669kW - 5.071kW 40°C - 37°C 4.669kW - x x = 4.910kW Sensible capacity, SC Interpolation Method: 40°C - 35°C = 3.378kW - 3.737kW 40°C - 37°C 3.424kW - y y = 3.593kW 21 x y 40 TC (kW) SC (kW) 4.669 3.
R410A MODELS (COOLING ONLY) MODEL : A5CM 20E / A5LC 20C Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 5.715 3.788 5.176 3.247 4.622 2.692 4.068 2.137 3.514 1.581 2.849 0.915 16 5.842 3.492 5.340 2.990 4.830 2.481 4.320 1.971 3.811 1.462 3.199 0.850 16 5.842 4.601 5.340 4.099 4.830 3.590 4.320 3.080 3.811 2.570 3.199 1.959 17 5.968 4.306 5.
R410A MODELS (COOLING ONLY) MODEL : A5CM 28E / A5LC 28C Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 8.088 5.364 7.605 4.869 7.036 4.410 6.468 3.951 5.899 3.492 5.217 2.942 16 8.340 5.050 7.847 4.607 7.311 4.182 6.776 3.758 6.241 3.333 5.598 2.823 16 8.340 6.350 7.847 5.907 7.311 5.483 6.776 5.058 6.241 4.633 5.598 4.123 17 8.591 6.036 8.
R410A MODELS (HEATPUMP) MODEL : A5CM 20ER / A5LC 20CR COOLING MODE Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 5.715 3.788 5.176 3.247 4.622 2.692 4.068 2.137 3.514 1.581 2.849 0.915 16 5.842 3.492 5.340 2.990 4.830 2.481 4.320 1.971 3.811 1.462 3.199 0.850 16 5.842 4.601 5.340 4.099 4.830 3.590 4.320 3.080 3.811 2.570 3.199 1.959 17 5.968 4.
R410A MODELS (HEATPUMP) MODEL : A5CM 25ER / A5LC 25CR COOLING MODE Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 5.924 4.060 5.602 3.715 5.279 3.405 4.956 3.096 4.633 2.787 4.246 2.416 16 6.138 3.823 5.810 3.519 5.481 3.233 5.153 2.947 4.824 2.662 4.430 2.319 16 6.138 4.870 5.810 4.566 5.481 4.281 5.153 3.995 4.824 3.710 4.430 3.367 17 6.352 4.
R410A MODELS (HEATPUMP) MODEL : A5CM 28ER / A5LC 28CR COOLING MODE Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 8.088 5.364 7.605 4.869 7.036 4.410 6.468 3.951 5.899 3.492 5.217 2.942 16 8.340 5.050 7.847 4.607 7.311 4.182 6.776 3.758 6.241 3.333 5.598 2.823 16 8.340 6.350 7.847 5.907 7.311 5.483 6.776 5.058 6.241 4.633 5.598 4.123 17 8.591 6.
R410A MODELS (HEATPUMP) MODEL : A5CM 28ER / A5LC 35CR COOLING MODE Outdoor DB°C ID DB°C 20 24 28 30 ID WB°C 20 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 8.685 5.968 8.330 5.594 7.924 5.300 7.519 5.005 7.113 4.711 6.626 4.357 16 8.967 5.676 8.571 5.361 8.150 5.086 7.729 4.811 7.308 4.537 6.803 4.207 16 8.967 6.976 8.571 6.661 8.150 6.387 7.729 6.112 7.308 5.837 6.803 5.507 17 9.249 6.
7.
A5LC 35C/CR Note : Dimension in mm 29
8.
MODEL : A5CM 28E - A5LC 35C MODEL : A5CM 20ER - A5LC 20CR 31
MODEL : A5CM 25ER - A5LC 25CR MODEL : A5CM 28ER - A5LC 28CR 32
MODEL : ACM 28ER - ALC 30CR MODEL : A5CM 28ER - A5LC 35CR 33
INDOOR UNIT MODEL: A5CM 20/25E (WITH IONIZER) OUTDOOR UNIT MODEL: A5LC 20/25C 34
INDOOR UNIT MODEL: A5CM 28E (WITH IONIZER) OUTDOOR UNIT MODEL: A5LC 28C 35
INDOOR UNIT MODEL: A5CM 28E (WITH IONIZER) OUTDOOR UNIT MODEL: A5LC 35C 36
HEATPUMP INDOOR UNIT MODEL: A5CM 20/25ER (WITH IONIZER) OUTDOOR MODEL: A5LC 20/25CR 37
INDOOR UNIT MODEL: A5CM 28ER (WITH IONIZER) OUTDOOR UNIT MODEL: A5LC 28CR 38
INDOOR UNIT MODEL: A5CM 28ER (WITH IONIZER) OUTDOOR UNIT MODEL: A5LC 35CR 39
10. CONTROLLER G12 REMOTE CONTROLLER Personalised Setting Temperature Setting x To set the desired room temperature, press the button to increase or decrease the set temperature. x The temperature setting range is from 16qC to 30qC x Press both buttons simultaneously to toggle the temperature setting between qC and qF x Press and hold the button for 3s to initiate personalized setting. x Set the individual setting e.g.
SLM AC-5300 (OPTIONAL) 1. “ON/OFF” switch x Press to start the air conditioner unit. x Press again to stop the unit. 6. “Sleep” mode x Press button to activate the sleep function can only be activated under “cool” or heating mode operation. When it is activated under “cool” mode operation, the set temperature will increase 0.5°C after 30 minutes, 1°C after 1 hour and 2°C after 2 hours. If it is actiaved under “HEAT” mode operation, the set temperature will be descreased 0.
Operating State and Fault Table Wireless Remote Control – Handset LED Indicator Light Display Cooling Only COOL Heatpump DRY COOL FAN DRY FAN HEAT Normal Operation / Fault Indication COOL DRY FAN HEAT Cool mode | | | Heat mode Dry mode Fan mode | Auto mode in cooling operation | | Auto mode in heating operation Defrost operation Room air sensor open or short Outdoor coil sensor open Compressor overload / indoor coil sensor short / outdoor coil sensor short Gas leak Water pump | - ON - Bli
Wired Remote Control – SLM Cooling / Heatpump Model Error Code at 7 Segment Display Operation / Faulty Indication Blink E1 Room sensor open or short Blink E2 Indoor coil sensor open Blink E3 Outdoor coil sensor open Compressor overload / Blink E4 Indoor coil sensor short / Outdoor coil sensor short Blink E5 Gas leak Blink E6 Water pump faulty Phase Sequencer LED_P LED_R LED_S LED_T (Red) (Yellow) (Yellow) (Yellow) On - - - Reverse Phase Blink Blink Blink Blink S & T Phase Miss
11. INSTALLATION Caution Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them. (1) Installation of Indoor Unit Preliminary Site Survey x Electrical supply and installation is to confirm to local authority's (e.g. National Electrical Board) codes and regulations. x Voltage supply fluctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply fluctuation.
Please ensure that the following steps are taken: x Check the gradient for drainage flow as recommended in Figure B. x Provide clearance for easy servicing and optimal air flow as shown in Figure C. x The indoor unit must be installed such that there is no short circuit of the cool discharge air with the warm return air. x Don not install the indoor unit where there is direct sunlight shining on the unit. The location should be suitable for piping and drainage installation.
Under Ceiling Installation Install the Suspension Bolts 1. Install the suspension bolts so that it can support the indoor unit. 2. Adjust the distance to ceiling before installation. 3. Refer to the dimension given (Figure A) to install the unit. Install the Indoor Unit 1. Insert the suspension bolts into the fittings of the hanger bracket. 2. Set the nuts and washer on the both side of the metal fittings. 3. Secure it with nuts. 4. Attach the hanger cover (4 pcs) to the units.
Floor standing installation 1. Refer to the dimension as illustrated when installing the mounting bracket. 2. Determine the pipe hose position using the rear piping hole. Drill the pipe hole at the slight downward slant to the outdoor side.
Piping and Drain Hose Installation Under Ceiling Type 1. The piping direction can be 2 ways as illustrated. 2. The drain hose is only 1 way. OR Floor standing type OR How to Install the Drain Hose 1. Remove the 2 screws and the drain pipe holder. 2. Cut a slit for the drain hose hole. 3. Place the drain hose on the v-shape area and secure it with drain pipe holder and 2 screws.
How to Remove the Air Inlet Grille 1. Remove the air inlet grille by both hands as the direction shown. 2. Loosen the screws for fixing the panel arm (3 screws - Left, Right and Center). Do not remove the screws at this time. 3. Move the air inlet grille upward, and then turn it backwards. (Do not use too much force). 4. Remove the grille holder (both left and right side). After that, remove the air intake grille. 5. Remove the grille holder (center) from the panel.
How to install the air filter To Adjust the Vane Direction Adjust the vane linkage as the direction shown to get the required vane direction.
(2) INSTALLATION OF OUTDOOR UNIT As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to achieve maximum cooling capacity, the location selected for outdoor unit should fulfill the following requirements : x Install the condensing (outdoor) unit in a way such that hot air distributed by the outdoor condensing unit cannot be drawn in again (as in the case of short circuit of hot discharge air). Allow sufficient space for maintenance around the unit.
(3) REFRIGERANT PIPING MAXIMUM PIPING LENGTH AND MAXIMUM NUMBER OF BENDS When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as the result the compressor may become defective.
(4) WIRING ELECTRICAL CONNECTIONS x Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL CODES for field wiring rules. Be sure that installations comply with the rules and regulations. GENERAL PRECAUTIONS x x x x x Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring according to the wiring diagram. Provide a power outlet to be used exclusively for each unit.
Diagram shows typical charging method: Note : R407C – Fix filter dryer R22 - Nil R410A - Nil (7) OVERALL CHECKING x x x x Ensure the following, in particular: 1. The unit is mounted solidly and rigid in position. 2. Piping and connections are leak proof after charging. 3. Proper wiring has been done. Drainage check – pour some water into drain pan. Test run 1. Conduct a test run after water drainage test and gas leakage test. 2.
(9) SPECIAL PRECAUTIONS WHEN DEALING WITH REFRIGERANT R410A UNIT i) WHAT IS NEW REFRIGERANT R410A? R410A is a new HFC refrigerant which does not damage the ozone layer. The working pressure of this new refrigerant is 1.6 times higher than conventional refrigerant (R22), thus proper installation / servicing is essential. ii) COMPONENTS Mixture weight composition R32(50%) and R125(50%) iii) CHARACTERISTIC x R410A liquid and vapor components have different compositions when the fluid evaporates or condenses.
d) When charging R410A, ensure that only liquid is being withdrawn from the cylinder or can. This is to ensure that only the original composition of R410A is being delivered into the system. The liquid composition can be different from the vapor composition. Invert cylinder without dip-pipe Dip-pipe Liquid withdrawal f) Normally, the R410A cylinder or can is being equipped with a dip pipe for liquid withdrawal.
12. SERVICING AND MAINTENANCE Warning : Disconnect from main supply before servicing the air conditioner The unit is designed to give long life operation with minimum maintenance required. However, it should be regularly checked and the following items should be given due attention. Components Maintenance Procedure Recommended Schedule Indoor Air Filter 1. Remove any dust adhering on the filter by using a vacuum cleaner or wash in lukewarm water (below 40qC/104qF) with a neutral cleaning detergent. 2.
PRE START UP MAINTENANCE (AFTER EXTENDED SHUTDOWN) – – – – – – – Inspect thoroughly and clean indoor and outdoor units. Clean or replace air filters. Clean condensate drain line. Clean clogged indoor and outdoor coils. Check fan imbalance before operation. Tighten all wiring connections and panels. Check for refrigerant leakage. The design of the ALC outdoor series allows servicing to be carried out readily and easily. The removal of the top/front and back panel make almost every part accessible.
13. TROUBLESHOOTING When a malfunction of the air conditioner unit is detected, immediately switch off the main power supply before proceeding with the following troubleshooting procedures. The following are common fault conditions and simple troubleshooting tips. If any other fault conditions which are not listed occur, contact your nearest local dealer. DO NOT attempt to troubleshoot the unit by yourself.
Diagnostic Guidelines By means of pressure reading: High side Low side Ɣ Ɣ High side Low side High side Low side High side Low side High side Low side Probable cause Too high A little high Normal Circuit Too low Data A little low Pressure Ɣ Ɣ Ɣ Ɣ Ɣ Ɣ 1. 2. 3. 4. Overcharged with refrigerant. Non-condensable gases in refrigerant circuit (e.g. air) Obstructed air-intake / discharge. Hot air short circuiting in outdoor unit. 1. Poor compression / no compression (compressor defective) 2.
By means of diagnostic flow chart: Generally, there are two kinds of problems, i.e. starting failure and insufficient cooling/heating. “Starting failure” is caused by electrical defect while improper application or defects in refrigerant circuit causes “Insufficient cooling / heating”. i) Diagnosis of Electric Circuit The most common causes of air conditioner failure to “start” are : a) Voltage not within ±10% of rated voltage. b) Power supply interrupted. c) Improper control settings.
ii ) Diagnosis of Refrigerant Circuit / Application There might be some causes where the unit starts running but does not perform satisfactorily, i.e. insufficient cooling. Judgement could be made by measuring temperature difference of indoor unit’s intake and discharge air as well as running current. Satisfactory operation with temperature difference of air intake & discharge of indoor unit 8°C to 13°C.
Satisfactory operation with temperature difference of air intake & discharge of indoor unit 14°C to 20°C.
14. EXPLODED VIEW & PARTS LIST MODEL: A5CM 20/25/28E/ER No Description 1 Assy., Top Panel 2 Assy., Coil ACM 20E/ER, A5CM 25E/ER A5CM 20E/ER ACM 25E/ER, ACM 28ER, A5CM 28E/ER ACM 28E 3 Assy., Vane 4 Assy., Drain Pan ACM / A5CM 20/25/28E ACM / A5CM 20/25/28ER 5 Assy.
MODEL: A5LC 20C No Description 1 Assy. Base Pan ALC 18C ALC 20C A5LC 20C 2 Assy. Outdoor Coil ALC 18C ALC 20C A5LC 20C 3 Motor Bracket 4 Fan Motor ALC 18C ALC / A5LC 20C 5 Fan Blade 6 Valve Bracket ALC 18/20C A5LC 20C 7 ALC 18/20C Assy. Flare Valve 3 Ways 5/8" A5LC 20C Assy. Flare Valve 3 Ways 1/2" 8 Assy. Flare Valve 2 Ways 1/4" ALC 18/20C A5LC 20C Part No No Description 9 Back Panel, Right 10 Compressor ALC 18C ALC 20C A5LC 20C 11 Front Panel, Left 12 Service Panel 13 Terminal Cover Panel 14 Assy.
MODEL: A5LC 25 / 28C No Description 1 Assy. Base Pan 2 Assy. Outdoor Coil ALC 25/28C A5LC 25C/28C 3 Motor Bracket 4 Fan Motor ALC / A5LC 25C ALC / A5LC 28C 5 Fan Blade 6 Valve Bracket ALC 25/28C A5LC 25C A5LC 28C 7 Assy. Flare Valve 3 Ways 5/8" ALC 25/28C A5LC 25C/28C 8 ALC25/28C Assy. Flare Valve 2 Ways 3/8" A5LC 25C Assy. Flare Valve 2 Ways 1/4" A5LC 28C Assy.
MODEL: A5LC 20CR No Description 1 Assy. Base Pan ALC 20CR A5LC 20CR 2 Assy. Outdoor Coil ALC 20CR A5LC 20CR 3 Motor Bracket 4 Fan Motor 5 Fan Blade 6 Valve Bracket ALC 18/20CR A5LC 20CR 7 ALC 18/20CR Assy. Flare Valve 3 Ways 5/8" A5LC 20CR Assy. Flare Valve 3 Ways 1/2" 8 Assy. Flare Valve 2 Ways 1/4" ALC 18/20CR A5LC 20CR 9 Back Panel, Right Part No No Description 10 Compressor ALC 20CR A5LC 20CR 11 Front Panel, Left 12 Service Panel 13 Terminal Cover Panel 14 Assy.
MODEL: A5LC 25 / 28CR No Description 1 Assy. Base Pan 2 Assy. Outdoor Coil ALC 25/28CR A5LC 25/28CR 3 Motor Bracket 4 Fan Motor ALC / A5LC 25CR ALC / A5LC 28CR 5 Fan Blade 6 Valve Bracket ALC 25/28CR A5LC 25CR A5LC 28CR 7 Assy. Flare Valve 3 Ways 5/8" ALC 25/28CR A5LC 25C/28CR 8 ALC25/28CR Assy. Flare Valve 2 Ways 3/8" A5LC 25CR Assy. Flare Valve 2 Ways 1/4" A5LC 28CR Assy.
MODEL: A5LC 35 C/CR No Description 1 Assy. Base Pan 2 Assy. Flare Valve 3/8" ALC 30C/CR A5LC 35C/CR 3 Assy. Flare Valve 5/8" ALC 30C/CR A5LC 35C/CR 4 Panel, Partition 5 Compressor ALC 30C/CR 220-240V / 1Ph / 50Hz 380-415V / 3Ph / 50Hz A5LC 35C/CR 6 Service Panel 7 Accumulator ALC 30C/CR A5LC 35C/CR 8 Back Panel, Right 9 Top Panel Part No A50014053238 No Description 10 Assy. Coil ALC 30C ALC 30CR A5LC 35CR 11 Bracket, Fan Motor 12 Side Panel, Left 13 Fan Motor 14 Fan Blade 15 Assy.
While upmost care is taken in ensuring that all details in the publication are correct at time of going to press, we are constantly striving for improvement and therefore reserve the rights to alter model specifications and equipment without prior notice. Details of specifications and equipment are also subject to change to suit local conditions and equipments and not all models are available in every market.
