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Adoption of New Refrigerant
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
WARNING
Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to
have a service person do it. Do not attempt it yourself.
The cleaning diagram for the air filter is there for the service person, and not for the customer.
CONTENTS1. SPECIFICATIONS ...................................................................................... 4
1-1. Indoor Unit ........................................................................................................... 4
1-2. Outdoor Unit ........................................................................................................ 9
1-3. Operation Characteristic Curve ....................................................................... 11
1-4. Capacity Variation Ratio According to Temperature ...................................... 13
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ...................................... 14
2-1. Indoor Unit ......................................................................................................... 14
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM.............................. 17
3-1. Indoor Unit ......................................................................................................... 17
3-2. Outdoor Unit ...................................................................................................... 18
4. WIRING DIAGRAM................................................................................... 21
4-1. Indoor Unit ......................................................................................................... 21
5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 23
5-1. Indoor Unit ......................................................................................................... 23
6. REFRIGERANT R410A ............................................................................ 24
6-1. Safety During Installation/Servicing ...............................................................24
6-2. Refrigerant Piping Installation ....................................................................... 24
6-3. Tools .................................................................................................................. 28
6-4. Recharging of Refrigerant................................................................................ 29
6-5. Brazing of Pipes................................................................................................ 30
6-6. Tolerance of Pipe Length and Pipe Head........................................................ 32
6-7. Additional Refrigerant Amount........................................................................ 34
6-8. Piping Materials and Sizes............................................................................... 36
6-9. Branch Pipe....................................................................................................... 37
6-10. Distributor ......................................................................................................... 37