Service Manual
Page 1
... > ●Wall mounted type KMS0772 KMS0972 KMS1272 KMS1872 KMS2472 NOTE For details about the combination, refer to "Unit Combination Table" in the Appendix of this manual. Destination: North America DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity at 230V 19,700 BTU/h 25,400 BTU/h 30,600 BTU/h Outdoor Model No. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CLM1972 CLM2472 CLM3172 FILE NO.
... > ●Wall mounted type KMS0772 KMS0972 KMS1272 KMS1872 KMS2472 NOTE For details about the combination, refer to "Unit Combination Table" in the Appendix of this manual. Destination: North America DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity at 230V 19,700 BTU/h 25,400 BTU/h 30,600 BTU/h Outdoor Model No. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CLM1972 CLM2472 CLM3172 FILE NO.
Service Manual
Page 2
..., you require help , and bend your fingers. Sharp edges or thin aluminum fins on a raised platform that can result in this manual. As the installer or service person, it operates safely and efficiently. In Case of wiring have been left inside a room to follow... certified dealer for the outdoor unit. Important! Loose wiring may be responsible for Heat Pump-type Systems) Install the outdoor unit on the air conditioner can produce dangerously toxic gas. 2 Get a partner to the wiring diagram and these instructions when wiring. In a Room Properly insulate any...
..., you require help , and bend your fingers. Sharp edges or thin aluminum fins on a raised platform that can result in this manual. As the installer or service person, it operates safely and efficiently. In Case of wiring have been left inside a room to follow... certified dealer for the outdoor unit. Important! Loose wiring may be responsible for Heat Pump-type Systems) Install the outdoor unit on the air conditioner can produce dangerously toxic gas. 2 Get a partner to the wiring diagram and these instructions when wiring. In a Room Properly insulate any...
Service Manual
Page 6
...Electrical Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU/Wh A A Features Control Fan Speeds ...please refer to 253 7.0 1,570 98 12.5 16.5 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A / 6.17 (2,800) Electric Expansion Valve 50 Flare Type 82 (25) 1/4 (6.35) × 3 3/8 (9.52) × 3 Outdoor Unit 29-1/8 × 35-7/16...
...Electrical Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU/Wh A A Features Control Fan Speeds ...please refer to 253 7.0 1,570 98 12.5 16.5 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A / 6.17 (2,800) Electric Expansion Valve 50 Flare Type 82 (25) 1/4 (6.35) × 3 3/8 (9.52) × 3 Outdoor Unit 29-1/8 × 35-7/16...
Service Manual
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... Outdoor Unit : CLM1972 1unit 2. Outdoor air temp. 95°F D.B./ 75°F W.B. 7 The values shown in this manual. For other combination unit, please refer to 253 7.7 1,570 98 12.5 16.5 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A...Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU/Wh A A Features Control Fan Speeds...
... Outdoor Unit : CLM1972 1unit 2. Outdoor air temp. 95°F D.B./ 75°F W.B. 7 The values shown in this manual. For other combination unit, please refer to 253 7.7 1,570 98 12.5 16.5 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A...Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU/Wh A A Features Control Fan Speeds...
Service Manual
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...CLM2472 Indoor Unit KMS0972 × 3 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating Performance Electrical Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU... Outdoor Unit : CLM2472 1unit 2. The values shown in this manual. allowable tubing length...Multi Outdoor Unit 4 3 230V Single-Phase 60Hz Cooling 25,400 ( 9,800 to 25,400 ) 7.50 ( 2.90 to 7.50 ) 21,400...
...CLM2472 Indoor Unit KMS0972 × 3 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating Performance Electrical Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU... Outdoor Unit : CLM2472 1unit 2. The values shown in this manual. allowable tubing length...Multi Outdoor Unit 4 3 230V Single-Phase 60Hz Cooling 25,400 ( 9,800 to 25,400 ) 7.50 ( 2.90 to 7.50 ) 21,400...
Service Manual
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...air temp. 95°F D.B./ 75°F W.B. 9 For other combination unit, please refer to 253 12.5 2,560 98 9.5 16.2 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A / 6.17 (2,800) Electric Expansion Valve 50 Flare Type 82 (25...The values shown in this manual. allowable tubing length per ...400 ( 9,800 to 24,400 ) 7.20 ( 2.90 to 7.20 ) 20,600 3,800 1,707 (2,900) 187 to the "Unit Combination Tables" in performance section and electrical rating section above are : Cooling : Indoor air temp. 80°F D.B./ 67°F W.B. Outdoor Unit CLM2472...
...air temp. 95°F D.B./ 75°F W.B. 9 For other combination unit, please refer to 253 12.5 2,560 98 9.5 16.2 13.0 20 Outdoor Unit Microprocessor Auto (Hi and multi-steps) DC Twin Rotary (Inverter) R410A / 6.17 (2,800) Electric Expansion Valve 50 Flare Type 82 (25...The values shown in this manual. allowable tubing length per ...400 ( 9,800 to 24,400 ) 7.20 ( 2.90 to 7.20 ) 20,600 3,800 1,707 (2,900) 187 to the "Unit Combination Tables" in performance section and electrical rating section above are : Cooling : Indoor air temp. 80°F D.B./ 67°F W.B. Outdoor Unit CLM2472...
Service Manual
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... 15.18 (0.43) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Outdoor air temp. 95°F D.B./ 75°F W.B. 10 The values shown in this manual. allowable tubing length per unit Refrigerant Narrow tube Tube Diameter Wide ...ft (m3) < 230V > 4-Room Multi Outdoor Unit 4 4 230V Single-Phase 60Hz Cooling 30,600 ( 9,800 to 30,600 ) 9.00 ( 2.90 to 9.00 ) 25,800 4,800 1,942 (3,300) 187...Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU...
... 15.18 (0.43) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Outdoor air temp. 95°F D.B./ 75°F W.B. 10 The values shown in this manual. allowable tubing length per unit Refrigerant Narrow tube Tube Diameter Wide ...ft (m3) < 230V > 4-Room Multi Outdoor Unit 4 4 230V Single-Phase 60Hz Cooling 30,600 ( 9,800 to 30,600 ) 9.00 ( 2.90 to 9.00 ) 25,800 4,800 1,942 (3,300) 187...Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU...
Service Manual
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...(0.43) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: 1. Outdoor air temp. 95°F D.B./ 75°F W.B. 11 The values shown in this manual. Indoor Unit : KMS0972 4units Outdoor Unit : CLM3172 1unit 2. ...Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU...(m3) < 208V > 4-Room Multi Outdoor Unit 4 4 208V Single-Phase 60Hz Cooling 28,600 ( 9,800 to 28,600 ) 8.40 ( 2.90 to 8.40 ) 24,200 4,400 1,942 (3,300) 187 to the...
...(0.43) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: 1. Outdoor air temp. 95°F D.B./ 75°F W.B. 11 The values shown in this manual. Indoor Unit : KMS0972 4units Outdoor Unit : CLM3172 1unit 2. ...Air Circulation (High) Available Voltage Range Running Amperes Power Input Power Factor EER SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity BTU/h kW BTU/h BTU/h ft3/min (m3/h) V A W % BTU/h/W BTU...(m3) < 208V > 4-Room Multi Outdoor Unit 4 4 208V Single-Phase 60Hz Cooling 28,600 ( 9,800 to 28,600 ) 8.40 ( 2.90 to 8.40 ) 24,200 4,400 1,942 (3,300) 187 to the...
Service Manual
Page 56
... seguence in the correct positions. When the power is closed. Sequence CLM1972 MV0 MV1 MV2 CLM2472 CLM3172 MV0 MV1 MV2 MV3 Check the illumination of the electric expansion valve. Then rotate ...of the red Power Lamp. Controller check No voltage on circuit board Voltage varies Use a multi-meter to fully open the valve. When applying vacuum, use the special service magnet and... ohm Approx. 46 +/- 4 ohm Check the resistance between the 2 tubes drops. *1 If you have manually checked the electric expansion valve, be sure to check it is normal. Replace the coil. *1 Open and ...
... seguence in the correct positions. When the power is closed. Sequence CLM1972 MV0 MV1 MV2 CLM2472 CLM3172 MV0 MV1 MV2 MV3 Check the illumination of the electric expansion valve. Then rotate ...of the red Power Lamp. Controller check No voltage on circuit board Voltage varies Use a multi-meter to fully open the valve. When applying vacuum, use the special service magnet and... ohm Approx. 46 +/- 4 ohm Check the resistance between the 2 tubes drops. *1 If you have manually checked the electric expansion valve, be sure to check it is normal. Replace the coil. *1 Open and ...
Service Manual
Page 61
... pump with R22 and R407C. Tubing Installation Procedures When the tubes are connected, always apply HAB oil on tubing installation procedures, refer to the installation manuals attached to a conventional vacuum pump.) Electronic scale for charging refrigerant Flare tool Bender Torque wrench Cutter, reamer Welding tool, nitrogen gas cylinder CAUTION The above...
... pump with R22 and R407C. Tubing Installation Procedures When the tubes are connected, always apply HAB oil on tubing installation procedures, refer to the installation manuals attached to a conventional vacuum pump.) Electronic scale for charging refrigerant Flare tool Bender Torque wrench Cutter, reamer Welding tool, nitrogen gas cylinder CAUTION The above...
Service Manual
Page 65
... 9-8-1. In Case Refrigerant is leaking from the unit. This will cause the air conditioner to operate improperly and may result in "9-6. Only then should you recharge the refrigerant. 9-8. Charging Additional Refrigerant 9-7-1. Charge additional refrigerant in this service manual or the installation manual that used . 65 Use of refrigerant as stated in liquid state only...
... 9-8-1. In Case Refrigerant is leaking from the unit. This will cause the air conditioner to operate improperly and may result in "9-6. Only then should you recharge the refrigerant. 9-8. Charging Additional Refrigerant 9-7-1. Charge additional refrigerant in this service manual or the installation manual that used . 65 Use of refrigerant as stated in liquid state only...
Service Manual
Page 67
... SELECTION 4 2-1. COOL/DRY Model This air conditioner uses the new refrigerant R410A. Finishing the Installation Indoor Unit KMS0772 KMS0972 KMS1272 KMS1872 KMS2472 Outdoor Unit CM1972 CM2472 CM3172 CLM1972 CLM2472 CLM3172 Combine indoor and outdoor units only as listed below. 1. Embedding the Tubing and Wiring 3-2. Optional Copper Tubing Kit 1-4. WIRING INSTRUCTIONS 21 5-1. Inverter Multi Split System Air Conditioner -
... SELECTION 4 2-1. COOL/DRY Model This air conditioner uses the new refrigerant R410A. Finishing the Installation Indoor Unit KMS0772 KMS0972 KMS1272 KMS1872 KMS2472 Outdoor Unit CM1972 CM2472 CM3172 CLM1972 CLM2472 CLM3172 Combine indoor and outdoor units only as listed below. 1. Embedding the Tubing and Wiring 3-2. Optional Copper Tubing Kit 1-4. WIRING INSTRUCTIONS 21 5-1. Inverter Multi Split System Air Conditioner -
Service Manual
Page 68
...problem, contact our sales/service outlet or your job to reduce strain on the air conditioner can produce dangerously toxic gas. • Do not install only a single indoor unit. 2 Provide a suitable air baffle. ...In a Snowy Area (for improper installation or maintenance service, including ...8226; Check carefully for the outdoor unit. When Transporting Be careful when picking up the site after you must: G Carefully read this manual. Provide snow vents. When Connecting Refrigerant Tubing • Use the flare method for connecting tubing. • Apply refrigerant lubricant to ...
...problem, contact our sales/service outlet or your job to reduce strain on the air conditioner can produce dangerously toxic gas. • Do not install only a single indoor unit. 2 Provide a suitable air baffle. ...In a Snowy Area (for improper installation or maintenance service, including ...8226; Check carefully for the outdoor unit. When Transporting Be careful when picking up the site after you must: G Carefully read this manual. Provide snow vents. When Connecting Refrigerant Tubing • Use the flare method for connecting tubing. • Apply refrigerant lubricant to ...
Service Manual
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... 1-2. Tube cutter 12. Optional Copper Tubing Kit Copper tubing for Installation (not supplied) 1. Phillips head screwdriver 3. 1. Refer to install the air conditioning system. Adjustable wrench 15. Also, check any specified instructions or limitations. Please read over the entire set of wiring. Hacksaw 8. Foamed...and make sure all accessory parts listed are with the total length of instructions for the specified copper tubes as detailed in this manual, please check for inter-unit cable and tube ABCD Reducer 4 each tube to the appropriate lengths 1' to 1'4" (30 cm ...
... 1-2. Tube cutter 12. Optional Copper Tubing Kit Copper tubing for Installation (not supplied) 1. Phillips head screwdriver 3. 1. Refer to install the air conditioning system. Adjustable wrench 15. Also, check any specified instructions or limitations. Please read over the entire set of wiring. Hacksaw 8. Foamed...and make sure all accessory parts listed are with the total length of instructions for the specified copper tubes as detailed in this manual, please check for inter-unit cable and tube ABCD Reducer 4 each tube to the appropriate lengths 1' to 1'4" (30 cm ...
Service Manual
Page 71
... any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Allowable Tubing Length per unit (ft.) Max. CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22 CM3172/CLM3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3... to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft. G Install the indoor unit more detailed charging information, refer to the Technical & Service Manual. 5
... any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Allowable Tubing Length per unit (ft.) Max. CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22 CM3172/CLM3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3... to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft. G Install the indoor unit more detailed charging information, refer to the Technical & Service Manual. 5
Service Manual
Page 83
... with a proper insulation material. For more details, refer to "Tubing Check Control" in the wall to seal off the hole in the Technical & Service Manual. 3-6. As you wrap the tubing, overlap half of the insulation should be a minimum 5/16" (8 mm). (Fig. 17) 3-7. every 47" (120..., use sealing putty to prevent rain and draft from the bundle and drips clear of condensation, both tubes must be sure the condensation drain hose splits away from entering. (Fig. 19) Torque wrench Indoor unit Spanner Outdoor unit Fig. 15 Min. 5/16" (8 mm) Insulation Fig. 16 Insulation ...
... with a proper insulation material. For more details, refer to "Tubing Check Control" in the wall to seal off the hole in the Technical & Service Manual. 3-6. As you wrap the tubing, overlap half of the insulation should be a minimum 5/16" (8 mm). (Fig. 17) 3-7. every 47" (120..., use sealing putty to prevent rain and draft from the bundle and drips clear of condensation, both tubes must be sure the condensation drain hose splits away from entering. (Fig. 19) Torque wrench Indoor unit Spanner Outdoor unit Fig. 15 Min. 5/16" (8 mm) Insulation Fig. 16 Insulation ...
Service Manual
Page 84
...the same procedures for all wiring for this stage. G When using the gas inside the outdoor unit.) D Manifold gauge C (special for R410A) B Low-pressure High-pressure valve valve Vacuum pump A Leave the Lo Hi adapter (for tubes A, B, C, and D. NOTE CAUTION Before using the refrigerant gas... hose (special for R410A) Fig. 20 Vacuum pump CAUTION In order to perform the air purge. (Never perform an air purge by using the vacuum pump adapter, read the vacuum pump adapter manual, and use the special charging hose and manifold gauge. G pressure in the system rises...
...the same procedures for all wiring for this stage. G When using the gas inside the outdoor unit.) D Manifold gauge C (special for R410A) B Low-pressure High-pressure valve valve Vacuum pump A Leave the Lo Hi adapter (for tubes A, B, C, and D. NOTE CAUTION Before using the refrigerant gas... hose (special for R410A) Fig. 20 Vacuum pump CAUTION In order to perform the air purge. (Never perform an air purge by using the vacuum pump adapter, read the vacuum pump adapter manual, and use the special charging hose and manifold gauge. G pressure in the system rises...
Service Manual
Page 91
...(10 cm) longer than the required length for example). G Perform the test run procedures in the indoor unit installation manual. After making corrections, again purge the air from locality to the test run separately for errors in tubing and wiring. For field wiring requirements, please refer to ...panel "C" and the conduit plate. Checking tubing and wiring Perform the test run G Refer to locality. Correct the connections. Fig. 33 25 If there is an error in tubing or wiring. Store excess wiring inside the cabinet. (4) When connections are completed, check that the ...
...(10 cm) longer than the required length for example). G Perform the test run procedures in the indoor unit installation manual. After making corrections, again purge the air from locality to the test run separately for errors in tubing and wiring. For field wiring requirements, please refer to ...panel "C" and the conduit plate. Checking tubing and wiring Perform the test run G Refer to locality. Correct the connections. Fig. 33 25 If there is an error in tubing or wiring. Store excess wiring inside the cabinet. (4) When connections are completed, check that the ...