44 Floor Standing Type Air Conditioner
3-Way Valve
2) Heating Mode
(After Evacuation)
CLOSE
Lo
OPEN
(1)
Gas side
Liquid side
Indoor unit
Check valve
Charging
cylinder
Outdoor unit
Open
Open
3-Way
valve
3-Way
valve
• Procedure
Connect the charge hose to the charge cylinder.
• Connect the charge hose which you disconnected
from the vacuum pump to the valve at the bottom
of the cylinder.
• If you are using a gas cylinder, use a scale and
reverse the cylinder so that the system can be
charged with liquid.
Purge the air from the charge hose.
• Open the valve at the bottom of the cylinder and
press the check valve on the charge set to purge
the air. (Be careful of the liquid refrigerant). The
procedure is the same if using a gas cylinder.
Open the valve (Lo side) on the charge set and
charge the system with liquid refrigerant.
• If the system can not be charged with the speci-
fied amount of refrigerant, it can be charged with a
little at a time (approximately 150g each time)
while operating the air conditioner in the cooling
cycle; however, one time is not sufficient, wait
approximately 1 minute and then repeat the pro-
cedure (pumping down-pin).
Immediately disconnect the charge hose from the
3-way valve's service port.
• Stopping partway will allow the gas to be dis-
charged.
• If the system has been charged with liquid refriger-
ant while operating the air conditioner turn off the
air conditioner before disconnecting the hose.
Mount the valve stem nuts and the service port nut.
- Use a torque wrench to tighten the service port nut.
- Be sure to check gas leakage.
This is different from previous procedures.
Because you are charging with liquid refrigerant
from the gas side, absolutely do not attempt to
charge with larger amounts of liquid refrigerant
while operating the air conditioner.
Содержание LP-C808FA0
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