– 46 –
• Procedure
¤
Confirm that both the 3-way (liquid side) valve and
the 3-way(gas side) valve are set to the closed
position.
¤Ł
Connect the charge set and a gas cylinder to the
service port of the 3-way(gas side) valve.
• Leave the valve on the gas cylinder closed.
¤Ø
Air purging.
• Open the valves on the gas cylinder and the charge
set. Purge the air by loosening the flare nut on the
3-way(liquid side) valve approximately 45° for 3
seconds then closing it for 1 minute; repeat 3 times.
• After purging the air, use a torque wrench to tighten
the flare nut on liquid side valve.
¤Œ
Check gas leakage.
• Check the flare connections for gas leakage.
¤º
Discharge the refrigerant.
• Close the valve on the gas cylinder and discharge
the refrigerant until the gauge indicates 3 to
5kg/cm
2
g
¤
Disconnect the charge set and the gas cylinder,
and set the 3-way(liquid side) and 3-way(gas side)
valves to the open position.
• Be sure to use a hexagonal wrench to operate the
valve stems.
¤
Mount the valve stem nuts and the service port nut.
• Use torque wrench to tighten the service port nut.
• Be sure to check gas leakage.
1) Re-air purging
(Re-installation)
CLOSE
OPEN
R22
Gas side
Gas cylinder
Liquid side
Indoor unit
Outdoor unit
Closed
3-Way
valve
Closed
3-Way
valve
Содержание LP-E5020CL
Страница 12: ... 12 3 LP E5020CL LP E5022CL CA WIRING DIAGRAM ...
Страница 13: ... 13 4 LP E5022HL HA ...
Страница 66: ... 66 10 ELECTRONIC CONTROL DEVICE 10 1 MAIN P C B ASM ...
Страница 68: ... 68 11 1 Circuit and Troubleshooting 11 SCHEMATIC DIAGRAM ...
Страница 71: ... 71 6 51 49 47 44 50 14 11 11 1 12 10 10 1 8 9 9 1 9 2 46 42 40 48 5 6 7 49 45 55 43 1 ...
Страница 79: ...P NO 3828A30074N Printed in Korea ...