Service Manual 39
3-Way Valve
• Procedure
Confirm that both 3-way(liquid side) and 3-way(gas
side) valves are set to the open position.
• Remove the valve stem caps and confirm that the
valve stems are in the raised position.
• Be sure to use a hexagonal wrench to operate the
valve stems.
Operate the unit for 10 to 15 minutes.
Stop operation and wait for 3 minutes, then con-
nect the charge set to the service port of the 3-way
(gas side) valve.
- Connect the charge hose with the push pin to the
service port.
Air purging of the charge hose.
• Open the low-pressure valve on the charge
equipment slightly to purge air from the charge
hose.
Set the 3-way(liquid side) valve to the closed
position.
Operate the air conditioner at the cooling cycle and
stop it when the gauge indicates 1 kg/cm
2
g
Immediately set the 3-way(gas side) valve to the
closed position.
- Do this quickly so that the gauge ends up indicat-
ing 3 to 5kg/cm
2
g.
Disconnect the charge set, and mount the
3-way(liquid side) and 3-way(gas side) valve's stem
nuts and the service port nut.
- Use torque wrench to tighten the service port nut.
- Be sure to check gas leakage.
Lo
CLOSE
CLOSE
Purge the air
Gas side
Liquid side
Indoor unit
Outdoor unit
Closed
Open
3-Way
valve
3-Way
valve
Pumping down
Содержание LP-C808FA0
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