163
No. Component
Procedure
Remarks
⑬
Compressor
installation
2. Installation of compressor
1) Install the compressor in the reverse procedure
of removal.
CAUTION
The tightening torque of the hexagonal bolt to
fix the compressor is 11.0 N•m (110 Kgf•cm).
3. Vacuuming
1) Connect the vacuum pump to the valve charge
ports on the liquid and gas pipes.
2) Vacuum until the vacuum low-pressure gauge
indicates -755 mmHg.
CAUTION
Before vacuuming, open PMV fully.
Vacuuming of the outdoor heat exchanger will
not occur if PMV is closed.
Method of opening compulsion of PMV
completely
• Turn on the power to the outdoor unit.
• Short CN300 and CN301 on I/F P.C. board.
• Turn off the power to the outdoor unit within
2 minutes of short-circuiting.
4. Refrigerant charging
Add the same amount of refrigerant as the
remaining refrigerant from the charge port of the
valve.
5. Installation of sound-insulation mat
1) Start installing the sound-insulation mat (inside)
from the “adjustment position” between the
compressor and pipe, and the sound-insulation
mat (outside) up to the “adjustment position”
between the pipe and partition plate.
Partition
plate
Discharge
pipe
Suction pipe
Compresso r
Sound-insulation mat
(inside)
Sound-insulation
mat (outside-1)
Sound-insulation
mat (outside-2)