Service Manual
Page 1
... the combination, refer to "Unit Combination Table" in the Appendix of this manual. CM3172 IMPORTANT These air conditioners employ new refrigerant R410A. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CM1972 CM2472 CM3172 FILE NO. SM700666-04 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. REFERENCE NO.
... the combination, refer to "Unit Combination Table" in the Appendix of this manual. CM3172 IMPORTANT These air conditioners employ new refrigerant R410A. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CM1972 CM2472 CM3172 FILE NO. SM700666-04 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. REFERENCE NO.
Service Manual
Page 2
...and tubing are completed or reconnected and checked. • Highly dangerous electrical voltages are all you must: Carefully read this manual. If escaped gas comes in this instruction booklet before starting the test run inside the unit being serviced. Pay close attention... national electrical codes. Please Read Before Starting This air conditioning system meets strict safety and operating standards. This prevents water damage and abnormal vibration. For safe installation and trouble-free operation, you need for Heat Pump-type Systems) Install the outdoor unit on contact ...
...and tubing are completed or reconnected and checked. • Highly dangerous electrical voltages are all you must: Carefully read this manual. If escaped gas comes in this instruction booklet before starting the test run inside the unit being serviced. Pay close attention... national electrical codes. Please Read Before Starting This air conditioning system meets strict safety and operating standards. This prevents water damage and abnormal vibration. For safe installation and trouble-free operation, you need for Heat Pump-type Systems) Install the outdoor unit on contact ...
Service Manual
Page 6
...manual. Outdoor air temp. 95°F D.B./ 75°F W.B. 6 Unit Specifications Outdoor Unit CM1972 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/h ft3/min (m3/h) V A W % BTU/h/W BTU...cu.ft (m3) < 230V > 3-Room Multi Outdoor Unit 3 3 230V Single-Phase 60Hz ...
...manual. Outdoor air temp. 95°F D.B./ 75°F W.B. 6 Unit Specifications Outdoor Unit CM1972 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/h ft3/min (m3/h) V A W % BTU/h/W BTU...cu.ft (m3) < 230V > 3-Room Multi Outdoor Unit 3 3 230V Single-Phase 60Hz ...
Service Manual
Page 7
...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 Compressor Refrigerant / Amount charged at shipment Refrigerant Control Operation Sound (High) Cool Refrigerant Tubing Connections Max. Rating conditions are based on the following unit combination. The values shown in this manual...) < 208V > 3-Room Multi Outdoor Unit 3 3 208V ...
...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 Compressor Refrigerant / Amount charged at shipment Refrigerant Control Operation Sound (High) Cool Refrigerant Tubing Connections Max. Rating conditions are based on the following unit combination. The values shown in this manual...) < 208V > 3-Room Multi Outdoor Unit 3 3 208V ...
Service Manual
Page 8
...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... Weight Net Shipping Shipping Volume inch (mm) inch (mm) Ibs (kg) Ibs (kg) cu.ft (m3) < 230V > 4-Room 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...KMS0972 3units Outdoor Unit : CM2472 1unit 2. Remarks: 1. The values shown in this manual.
...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... Weight Net Shipping Shipping Volume inch (mm) inch (mm) Ibs (kg) Ibs (kg) cu.ft (m3) < 230V > 4-Room 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...KMS0972 3units Outdoor Unit : CM2472 1unit 2. Remarks: 1. The values shown in this manual.
Service Manual
Page 9
...Unit : KMS0972 3units Outdoor Unit : CM2472 1unit 2. The values shown in this manual. For other combination unit, please refer to 253 12.5 2,560 98 9.5 16...(kg) cu.ft (m3) < 208V > 4-Room Multi Outdoor Unit 4 3 208V Single-Phase 60Hz Cooling 24,400 ( 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 ... 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...
...Unit : KMS0972 3units Outdoor Unit : CM2472 1unit 2. The values shown in this manual. For other combination unit, please refer to 253 12.5 2,560 98 9.5 16...(kg) cu.ft (m3) < 208V > 4-Room Multi Outdoor Unit 4 3 208V Single-Phase 60Hz Cooling 24,400 ( 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 ... 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...
Service Manual
Page 10
...manual. Outdoor air temp. 95°F D.B./ 75°F W.B. 10 For other combination unit, please refer to 253 12.3 2,800 99 10.9 17.6 17.0 20 Outdoor Unit Microprocessor Auto (Hi, Me, Lo) DC Twin Rotary (Inverter) R410A / 8.38 (3,800) Electric Expansion Valve 53 Flare Type 100 (30...> 4-Room Multi Outdoor Unit 4 4 230V Single-Phase 60Hz Cooling 30,600 ( 9,800 to 30,600 ) 9.00...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...
...manual. Outdoor air temp. 95°F D.B./ 75°F W.B. 10 For other combination unit, please refer to 253 12.3 2,800 99 10.9 17.6 17.0 20 Outdoor Unit Microprocessor Auto (Hi, Me, Lo) DC Twin Rotary (Inverter) R410A / 8.38 (3,800) Electric Expansion Valve 53 Flare Type 100 (30...> 4-Room Multi Outdoor Unit 4 4 230V Single-Phase 60Hz Cooling 30,600 ( 9,800 to 30,600 ) 9.00...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
Page 11
...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 Compressor Refrigerant / Amount charged at shipment Refrigerant Control Operation Sound (High) Cool Refrigerant Tubing Connections Max. The values shown in this manual.... For other combination unit, please refer to 253 13.6 2,800 99 10.2 17.6 17.0 20 Outdoor Unit Microprocessor Auto (Hi, Me, Lo) DC Twin Rotary (Inverter) R410A / 8.38 (3,800) Electric Expansion Valve 53 Flare Type 100 (30... Outdoor air temp. ...Multi Outdoor Unit 4 4 208V Single-Phase 60Hz Cooling 28,600 ( 9,800 to 28,600...
...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 Compressor Refrigerant / Amount charged at shipment Refrigerant Control Operation Sound (High) Cool Refrigerant Tubing Connections Max. The values shown in this manual.... For other combination unit, please refer to 253 13.6 2,800 99 10.2 17.6 17.0 20 Outdoor Unit Microprocessor Auto (Hi, Me, Lo) DC Twin Rotary (Inverter) R410A / 8.38 (3,800) Electric Expansion Valve 53 Flare Type 100 (30... Outdoor air temp. ...Multi Outdoor Unit 4 4 208V Single-Phase 60Hz Cooling 28,600 ( 9,800 to 28,600...
Service Manual
Page 52
...it . If the temperature difference is large, the valve is normal. Controller check No voltage on circuit board Voltage varies Use a multi-meter to identify them. Then rotate 5 revolutions counterclockwise to check it is turned ON, the needle will changed.) 52 When applying ...controller. Check the coil resistance. 0 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 attach the connectors in approximately 10 to fully open the valve. Replace the coil. *1 Open ...
...it . If the temperature difference is large, the valve is normal. Controller check No voltage on circuit board Voltage varies Use a multi-meter to identify them. Then rotate 5 revolutions counterclockwise to check it is turned ON, the needle will changed.) 52 When applying ...controller. Check the coil resistance. 0 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 attach the connectors in approximately 10 to fully open the valve. Replace the coil. *1 Open ...
Service Manual
Page 57
... tubes are connected, always apply HAB oil on tubing installation procedures, refer to the installation manuals attached to improve the sealing of tubing. Tools Specifically for R410A For servicing, use the following adapter is recommended.) Vacuum pump (*2)...can be commonly used for R410A and never alternately with anti-reverse flow (*1) (Solenoid valve...
... tubes are connected, always apply HAB oil on tubing installation procedures, refer to the installation manuals attached to improve the sealing of tubing. Tools Specifically for R410A For servicing, use the following adapter is recommended.) Vacuum pump (*2)...can be commonly used for R410A and never alternately with anti-reverse flow (*1) (Solenoid valve...
Service Manual
Page 61
...Systems 9-8-1. Instead, completely new tubing must be used refrigerant R22 with the indoor unit. This will cause the air conditioner to operate improperly and may result in "9-6. Charging Additional Refrigerant 9-7-1. Follow instructions given in a hazardous condition. 9-8-2.... Charge additional refrigerant in this service manual or the installation manual that used . 61 CAUTION Never charge additional refrigerant if refrigerant is Leaking" and completely carry out repairs. ...
...Systems 9-8-1. Instead, completely new tubing must be used refrigerant R22 with the indoor unit. This will cause the air conditioner to operate improperly and may result in "9-6. Charging Additional Refrigerant 9-7-1. Follow instructions given in a hazardous condition. 9-8-2.... Charge additional refrigerant in this service manual or the installation manual that used . 61 CAUTION Never charge additional refrigerant if refrigerant is Leaking" and completely carry out repairs. ...
Service Manual
Page 63
...Outdoor Unit CM1972 CM2472 CM3172 CLM1972 CLM2472 CLM3172 Combine indoor and outdoor units only as listed in its respective manual. Recommended Wire Length and Diameter 5-3. TEST RUN 25 NOTE 7. GENERAL 3 1-1. Connecting Indoor Units 2-3. Diagram ... 2-2. Inverter Multi Split System Air Conditioner - Accessories Supplied with a Vacuum Pump (for models using the new refrigerant R410A. For Outdoor Unit INSTALLATION INSTRUCTIONS - Optional Copper Tubing Kit 1-4. INSTALLATION SITE SELECTION 4 2-1. Flaring Procedure with a Flare Tool 3-4. In Canada SANYO Canada Inc....
...Outdoor Unit CM1972 CM2472 CM3172 CLM1972 CLM2472 CLM3172 Combine indoor and outdoor units only as listed in its respective manual. Recommended Wire Length and Diameter 5-3. TEST RUN 25 NOTE 7. GENERAL 3 1-1. Connecting Indoor Units 2-3. Diagram ... 2-2. Inverter Multi Split System Air Conditioner - Accessories Supplied with a Vacuum Pump (for models using the new refrigerant R410A. For Outdoor Unit INSTALLATION INSTRUCTIONS - Optional Copper Tubing Kit 1-4. INSTALLATION SITE SELECTION 4 2-1. Flaring Procedure with a Flare Tool 3-4. In Canada SANYO Canada Inc....
Service Manual
Page 64
...the test run inside the unit being serviced. Loose wiring may be responsible for Heat Pump-type Systems) Install the outdoor unit on contact with bolts and a metal frame. Provide a suitable air baffle. ...In a Snowy Area (for improper installation or maintenance service, including ... Connect all local, state, and national electrical codes. Improper connections and inadequate grounding can result in this manual. Please Read Before Starting This air conditioning system meets strict safety and operating standards. CAUTION This symbol refers to the wiring diagram and these ...
...the test run inside the unit being serviced. Loose wiring may be responsible for Heat Pump-type Systems) Install the outdoor unit on contact with bolts and a metal frame. Provide a suitable air baffle. ...In a Snowy Area (for improper installation or maintenance service, including ... Connect all local, state, and national electrical codes. Improper connections and inadequate grounding can result in this manual. Please Read Before Starting This air conditioning system meets strict safety and operating standards. CAUTION This symbol refers to the wiring diagram and these ...
Service Manual
Page 65
...Vacuum pump (For R410A) 17. Manifold valve Figure Q'ty Parts 4 Reducer (1/2" 3/8") 1972 1 Figure Q'ty 2472 1 3172 2 Packed in this manual, ...please check for connecting the outdoor unit to purchase these materials separately from a local source, you will need: 1. Cut each (3/8" 1/2") 5. Wall thickness of Copper Tube and Insulation Material If you wish to the indoor unit is available in Table 2. Knife or wire stripper 4. Carpenter's level 6. Refer to install the air...lengths 1' to 1'4" (30 cm to 40 cm) to precise length of wiring. CAUTION...
...Vacuum pump (For R410A) 17. Manifold valve Figure Q'ty Parts 4 Reducer (1/2" 3/8") 1972 1 Figure Q'ty 2472 1 3172 2 Packed in this manual, ...please check for connecting the outdoor unit to purchase these materials separately from a local source, you will need: 1. Cut each (3/8" 1/2") 5. Wall thickness of Copper Tube and Insulation Material If you wish to the indoor unit is available in Table 2. Knife or wire stripper 4. Carpenter's level 6. Refer to install the air...lengths 1' to 1'4" (30 cm to 40 cm) to precise length of wiring. CAUTION...
Service Manual
Page 67
....)* CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 - G Install the indoor unit more detailed charging information, refer to the Technical & Service Manual. 5 Table 3 Model Max. Allowable Total Tubing Length at shipment (L1+L2+L3) or (L1+L2+L3+L4) (ft.) Limit of Total Tubing Length (L1+L2...
....)* CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 - G Install the indoor unit more detailed charging information, refer to the Technical & Service Manual. 5 Table 3 Model Max. Allowable Total Tubing Length at shipment (L1+L2+L3) or (L1+L2+L3+L4) (ft.) Limit of Total Tubing Length (L1+L2...
Service Manual
Page 79
...with a proper insulation material. Insulation of Refrigerant Tubing I M P O R TA N T To prevent heat loss and wet floors due to "Tubing Check Control" in the wall to the top of the insulation... has been insulated, never try to bend it enters the wall. Also, be sure the condensation drain hose splits away from entering. (Fig. 19) Torque wrench Indoor unit Spanner Outdoor unit Fig. 15 Min. 5/16"... taping over the tubing, use sealing putty to seal off the hole in the Technical & Service Manual. 3-6. The thickness of the tubing where it into a narrow curve, as 1 bundle with armoring...
...with a proper insulation material. Insulation of Refrigerant Tubing I M P O R TA N T To prevent heat loss and wet floors due to "Tubing Check Control" in the wall to the top of the insulation... has been insulated, never try to bend it enters the wall. Also, be sure the condensation drain hose splits away from entering. (Fig. 19) Torque wrench Indoor unit Spanner Outdoor unit Fig. 15 Min. 5/16"... taping over the tubing, use sealing putty to seal off the hole in the Technical & Service Manual. 3-6. The thickness of the tubing where it into a narrow curve, as 1 bundle with armoring...
Service Manual
Page 80
...110 kgf·cm) (Tighten by using the vacuum pump adapter, read the vacuum pump adapter manual, and use a stop valve for the test run has been completed. G When using a hex wrench to perform the air purge. (Never perform an air purge by using the refrigerant gas cylinder or other ...servicing, use a wrench to turn approximately 30 .) pressure gauges)...
...110 kgf·cm) (Tighten by using the vacuum pump adapter, read the vacuum pump adapter manual, and use a stop valve for the test run has been completed. G When using a hex wrench to perform the air purge. (Never perform an air purge by using the refrigerant gas cylinder or other ...servicing, use a wrench to turn approximately 30 .) pressure gauges)...
Service Manual
Page 87
... whether the inter-unit cables are connected incorrectly, or whether the narrow tubes A and B are operated simultaneously, it is an error in tubing, pump-down . Checking tubing and wiring Perform the test run and check that all local and national regulations. (1) Remove access panel "C". (Fig. 32... may flow to indoor unit B when indoor unit A is an error in the indoor unit installation manual. Fig. 33 25 Correct the connections. After making corrections, again purge the air from locality to locality. G Perform the test run procedures in tubing or wiring. CAUTION G Stop ...
... whether the inter-unit cables are connected incorrectly, or whether the narrow tubes A and B are operated simultaneously, it is an error in tubing, pump-down . Checking tubing and wiring Perform the test run and check that all local and national regulations. (1) Remove access panel "C". (Fig. 32... may flow to indoor unit B when indoor unit A is an error in the indoor unit installation manual. Fig. 33 25 Correct the connections. After making corrections, again purge the air from locality to locality. G Perform the test run procedures in tubing or wiring. CAUTION G Stop ...