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Installation procedure
l In installation, if there is refrigerant gas leakage, please take ventilation measures
immediately. The refrigerant gas will generate poisonous gas upon contacting fire.
l After installation, please verify that there is no refrigerant leakage. The leaked re-
frigerant gas will produce poisonous gas when meeting fire source such as heater
and furnace etc.
Allowable pipe length and drop
These parameters differ according to the outdoor unit. See the instruction manual attached
with the outdoor unit for details.
Pipe material and size
Pipe material
Phosphorus deoxidized copper seamless pipe (TP
Model
Pipe size
(mm)
Liquid side
Supplementary refrigerant
R22*AE182FCAJA*AE182FCAJA
R407C*AE182FCBJA*AE182FCBJA
The refrigerant supplementation shall be as specified in the installation instructions
attached with the outdoor unit. The added refrigerant shall be R407CorR22.
The adding procedure shall be aided with a measuring meter for a specified amount
of supplemented refrigerant
Requirement
l Overfilling or underfilling of refrigerant will cause compressor fault. The amount of the
added refrigerant shall be as specified in the instructions.
Connection of refrigerant pipe
Conduct flared connection work to connect all refrigerant pipes.
l The connection of indoor unit pipes must use double spanners.
l The installing torque shall be as given in the following table.
Connecting pipe
O.D.(mm)
ÿ6.35
ÿ9.52
ÿ12.70
ÿ15.88
! Caution
AE092FCAJA
AE092FCBJA
Gas side
ÿ9.52
ÿ6.35
Installing torque
(N-m)
11.8 (1.2kgf-m)
24.5 (2.5kgf-m)
49.0 (5.0 kgf-m)
78.4 (8.0 kgf-m)
29
Increased installing
torque (N-m)
13.7 (1.4 kgf-m)
29.4 (3.0 kgf-m)
53.9 (5.5 kgf-m)
98.0 (10.0 kgf-m)
efrigerant piping
R
) for air conditioner
2
AE182FCAJA
AE182FCBJA
ÿ15.88
ÿ9.52
Double-spanner
operation
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