Air Purging With Vacuum Pump; Outdoor Unit - Frigidaire FRS093LW1 Installation Manual

Air purging with vacuum pump

1. Check that each tube(both liquid and gas side tubes) between the indoor and
outdoor units have been properly connected and all wiring for the test run has
been completed. Remove the service valve caps from both the gas and the
liquid side on the outdoor unit. Note that both the liquid and the gas side
service valves on the outdoor unit are kept closed at this stage.
2. When relocating the unit to another place, perform evacuation using vacuum
pump.
3. Pipe length and refrigerant amount:
Connective
pipe length
Less than 16.4'
16.4'~32.8'
Caution in handling the packed valve integrated in the outlets of

outdoor unit.

1. Operation of opening packed valve: Open the valve stem until it hits against
the stopper. Do not try to open it further.
2. Operation of closing packed valve: Securely tighten the valve stem with a special
tool. Then securely tighten the valve stem cap with a spanner or the like. Refer to
tightening torque table in page 17
Note: There is a charging port integrated in the low side outlet, but not in the
high side outlet. The low side outlet is shown in the sketch map below.
Outdoor unit
Packed valve
Air purging
25
Air
purging
Use vacuum pump.
Use vacuum pump.
Refrigerant
Indoor unit
A
B
refrigerant to be charged
R410A: 0.71ozs/ft (Pipe length-16.4')
for valve stem cap tightening torque
Valve body
Gas
C
D
Charge port
Half union
Additional amount of
Valve stem
Stopper
Flare nut
Cap