Service Manual
Page 1
... the combination, refer to "Unit Combination Table" in the Appendix of this manual. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CM1972 CM2472 CM3172 FILE NO. REFERENCE NO. Pay special attention when servicing the unit. 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. CM3172 IMPORTANT These air conditioners employ new refrigerant R410A.
... the combination, refer to "Unit Combination Table" in the Appendix of this manual. TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CM1972 CM2472 CM3172 FILE NO. REFERENCE NO. Pay special attention when servicing the unit. 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. CM3172 IMPORTANT These air conditioners employ new refrigerant R410A.
Service Manual
Page 2
...Do not supply power to walls and floors. Sharp edges or thin aluminum fins on the air conditioner can cause accidental injury or death. • Ground the unit following local electrical codes. ...is leaking. For safe installation and trouble-free operation, you must: Carefully read this manual. SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH....escaped gas comes in severe personal injury or death. Important! As the installer or service person, it operates safely and efficiently. Follow each installation or repair step exactly ...
...Do not supply power to walls and floors. Sharp edges or thin aluminum fins on the air conditioner can cause accidental injury or death. • Ground the unit following local electrical codes. ...is leaking. For safe installation and trouble-free operation, you must: Carefully read this manual. SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH....escaped gas comes in severe personal injury or death. Important! As the installer or service person, it operates safely and efficiently. Follow each installation or repair step exactly ...
Service Manual
Page 52
... service magnet and rotate at the inlet and outlet tubes of the electric expansion valve. Then start the unit and measure the temperature at least 5 revolutions counterclockwise to fully open the valve. Sequence CM1972 ...service magnet and rotate 5 revolutions clockwise to check it is normal if the temperature difference between the gray lead wire and the other means while welding. Controller check No voltage on circuit board Voltage varies Use a multi... to reapply the outdoor power after you have manually checked the electric expansion valve, be sure to identify them.
... service magnet and rotate at the inlet and outlet tubes of the electric expansion valve. Then start the unit and measure the temperature at least 5 revolutions counterclockwise to fully open the valve. Sequence CM1972 ...service magnet and rotate 5 revolutions clockwise to check it is normal if the temperature difference between the gray lead wire and the other means while welding. Controller check No voltage on circuit board Voltage varies Use a multi... to reapply the outdoor power after you have manually checked the electric expansion valve, be sure to identify them.
Service Manual
Page 57
However, they must not be used for R22 and R407C. Tools Specifically for R410A For servicing, use the following tools for R410A Tool Distinction Tools specifically for R410A Tools which can be used for R410A and never alternately with... diameter of the unit. 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 ...
However, they must not be used for R22 and R407C. Tools Specifically for R410A For servicing, use the following tools for R410A Tool Distinction Tools specifically for R410A Tools which can be used for R410A and never alternately with... diameter of the unit. 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 ...
Service Manual
Page 61
... use its existing tubing. Retro-Fitting Existing 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 this service manual or the installation manual that used . 61 9-7.
... use its existing tubing. Retro-Fitting Existing 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 this service manual or the installation manual that used . 61 9-7.
Service Manual
Page 63
...in its respective manual. Type of Outdoor Unit Installation 3. Indoor Unit 2-2. Diagram of Copper Tube and Insulation Material 1-5. AIR PURGING 18 I Pump Down 5. General Precautions on the typical appearance of the air conditioner that of ...169; SANYO 2007 SANYO Commercial Solutions A Division of Outdoor Unit 2-6. For Outdoor Unit INSTALLATION INSTRUCTIONS - CONNECTING A HOME AUTOMATION DEVICE 26 The illustrations are installing. 8. Flaring Procedure with a Flare Tool 3-4. Inverter Multi Split System Air Conditioner - COOL/DRY Model This air conditioner uses the...
...in its respective manual. Type of Outdoor Unit Installation 3. Indoor Unit 2-2. Diagram of Copper Tube and Insulation Material 1-5. AIR PURGING 18 I Pump Down 5. General Precautions on the typical appearance of the air conditioner that of ...169; SANYO 2007 SANYO Commercial Solutions A Division of Outdoor Unit 2-6. For Outdoor Unit INSTALLATION INSTRUCTIONS - CONNECTING A HOME AUTOMATION DEVICE 26 The illustrations are installing. 8. Flaring Procedure with a Flare Tool 3-4. Inverter Multi Split System Air Conditioner - COOL/DRY Model This air conditioner uses the...
Service Manual
Page 64
...to the matching surfaces of wiring have been left inside a room to a hazard or unsafe practice which can result in this manual. Provide a suitable air baffle. ...In a Snowy Area (for additional instructions. For safe installation and trouble-free operation, you require help , and bend...the instructions in severe personal injury or death. IMPORTANT! As the installer or service person, it can cut your certified dealer for Heat Pump-type Systems) Install the outdoor unit on the air conditioner can produce dangerously toxic gas. • Do not install only a single indoor...
...to the matching surfaces of wiring have been left inside a room to a hazard or unsafe practice which can result in this manual. Provide a suitable air baffle. ...In a Snowy Area (for additional instructions. For safe installation and trouble-free operation, you require help , and bend...the instructions in severe personal injury or death. IMPORTANT! As the installer or service person, it can cut your certified dealer for Heat Pump-type Systems) Install the outdoor unit on the air conditioner can produce dangerously toxic gas. • Do not install only a single indoor...
Service Manual
Page 67
... any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. No additional charge of Additional Refrigerant (oz./ft.)* CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 - Table 3 Model Max. CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2... manner 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. No additional charge of Additional Refrigerant (oz./ft.)* CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 - Table 3 Model Max. CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2... manner 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 79
...of the insulation should be sure the condensation drain hose splits away from the bottom of the outdoor unit to bend...16 Insulation Thickness: min. 5/16" (8 mm) Fig. 17 Clamp Insulated tubes Fig. 18 Apply putty here Tubing Fig. 19 17 As you wrap the tubing, overlap half of condensation, both tubes must be a minimum 5/16" (8 mm). (Fig.... After finishing insulating and taping over the tubing, use sealing putty to seal off the hole in the Technical & Service Manual. 3-6. For more details, refer to wall, using 1 clamp approx. Insulation of Refrigerant Tubing I M P O...
...of the insulation should be sure the condensation drain hose splits away from the bottom of the outdoor unit to bend...16 Insulation Thickness: min. 5/16" (8 mm) Fig. 17 Clamp Insulated tubes Fig. 18 Apply putty here Tubing Fig. 19 17 As you wrap the tubing, overlap half of condensation, both tubes must be a minimum 5/16" (8 mm). (Fig.... After finishing insulating and taping over the tubing, use sealing putty to seal off the hole in the Technical & Service Manual. 3-6. For more details, refer to wall, using 1 clamp approx. Insulation of Refrigerant Tubing I M P O...
Service Manual
Page 80
Therefore, they must always be sure to use a vacuum pump to perform the air purge. (Never perform an air purge by using the vacuum pump adapter, read the vacuum pump adapter manual, and use a stop valve for the test run has been completed. Use the same procedures for Test... each tube (both narrow and wide tubes. (3) Connect a vacuum pump and a manifold valve (with A/C that both narrow and wide tube service valves on wide tube side I Air Purging with a Vacuum Pump (for all wiring for this stage. G pressure in the system rises G operating current rises G cooling efficiency drops...
Therefore, they must always be sure to use a vacuum pump to perform the air purge. (Never perform an air purge by using the vacuum pump adapter, read the vacuum pump adapter manual, and use a stop valve for the test run has been completed. Use the same procedures for Test... each tube (both narrow and wide tubes. (3) Connect a vacuum pump and a manifold valve (with A/C that both narrow and wide tube service valves on wide tube side I Air Purging with a Vacuum Pump (for all wiring for this stage. G pressure in the system rises G operating current rises G cooling efficiency drops...