– 162 –
No.
6
Part name
Compressor
Compressor lead
(Continued)
Procedure
3. Vacuuming
1) Connect the vacuum pump to the charge
port of the gas pipe valve and then drive
the vacuum pump.
2) Carry out vacuuming until the vacuum
low pressure gauge indicates 1 (mmHg).
NOTE:
Before vacuuming, open PMV fully. If PMV is
closed, vacuuming may be impossible between
the liquid pipe valve and PMV of the outdoor unit.
Forced full-opening method of PMV
∗
Turn on the leakage breaker.
∗
Turn on 1 and 3 of DIP SW804 on the control
P.C. board of the outdoor unit.
∗
Keep pushing SW801 on the control P.C. board
of the outdoor unit for 1 second or more.
∗
After pushing SW801 for 1 second or more,
turn off the leakage breaker within 2 minutes.
4. Refrigerant charging
1) Add the quantity of refrigerant specified
by the pipe length into the charge port of
the valve.
Remarks
1. Detachment
1) Carry out works of 1 of
1
and
3
.
2) While pulling the coil upward and
removing the spring which pinches the
copper pipe, remove the coil from PMV
main body.
2. Attachment
1) Match the spring to the copper pipe and
fix it.
PMV coil
7
SW804
SW801
PMV coil
Spring
PMV main body
