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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.
NOTE
A direct current motor is adopted for indoor fan motor in the Concealed Duct Standard Type air conditioner.
Caused from its characteristics, a current limit works on the direct current motor. When replacing the high-
performance filter or when opening the service board, be sure to stop the fan. If an above action is executed
during the fan operation, the protective control works to stop the unit operation, and the check code “P12”
may be issued. However it is not a trouble. When the desired operation has finished, be sure to reset the
system to clear “P12” error code using the leak breaker of the indoor unit. Then push the operation stop
button of the remote controller to return to the usual operation.
CONTENTS
SAFETY CAUTION ............................................................................................ 4
1. SPECIFICATIONS ......................................................................................... 9
1-1. Indoor Unit........................................................................................................... 9
1-2. Outdoor Unit...................................................................................................... 17
1-3. Operation Characteristic Curve ....................................................................... 19
2. AIR DUCTING WORK ................................................................................. 22
2-1. Static Pressure Characteristics of Each Model ............................................. 22
3. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ......................................... 24
3-1. Indoor Unit......................................................................................................... 24
3-2. Outdoor Unit...................................................................................................... 28
4. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM ................................ 31
4-1. Indoor Unit/Outdoor Unit ................................................................................. 31
5. WIRING DIAGRAM ..................................................................................... 39
5-1. Indoor Unit......................................................................................................... 39
5-2. Outdoor Unit (Wiring Diagram) ........................................................................ 42
6. SPECIFICATIONS OF ELECTRICAL PARTS............................................. 46
6-1. Indoor Unit......................................................................................................... 46
6-2. Outdoor Unit...................................................................................................... 48
6-3. Accessory Separate Soldparts ........................................................................ 50
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