– 36 –
• Procedure
①
Confirm that both the 3-way (liquid side) valve and
the 3-way(gas side) valve are set to the closed
position.
②
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.
③
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.
④
Check gas leakage.
• Check the flare connections for gas leakage.
⑤
Discharge the refrigerant.
• Close the valve on the gas cylinder and discharge
the refrigerant until the gauge indicates 3 to
5kg/cm
2
g
⑥
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.
⑦
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
Summary of Contents for LP-10091CL/XL
Page 1: ...Package Air Conditioner SERVICE MANUAL MODEL LP 10091CL XL LP 15091CL XL LP 20091CL XL ...
Page 7: ...2 1 LP 10091CL XL 2 2 LP 15091CL XL 2 3 LP 20091CL XL 7 2 DIMENSIONS ...
Page 53: ... 53 9 ELECTRONIC CONTROL DEVICE 9 1 MAIN P C B ASSY ...
Page 55: ... 55 10 SCHEMATIC DIAGRAM LP 10091CL XL LP 15091CL XL ...
Page 57: ... 57 22 19 10 4 5 1 12 21 20 15 13 16 2 9 8 7 18 17 6 3 11 14 ...
Page 62: ... 62 3 13 12 9 11 10 2 8 1 6 5 7 4 16 17 24 25 22 20 14 15 23 21 26 19 ...
Page 67: ... 67 3 13 12 9 11 10 2 8 1 6 5 7 4 16 17 24 25 22 20 14 15 23 21 26 19 ...
Page 76: ...11 6 Outdoor Unit LP 20091CL 20091XL 1 Exploded View 76 ...