2. Air purging by the refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the closed position.
2). Connect the charge set and a charging cylinder to the service port of the 3-way valve
Leave the valve on the charging cylinder closed.
3). Air purging.
Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on
the 2-
way 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 the 2-way valve.
4). Check the gas leakage
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the
2-
way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa.
6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open
position
Be sure to use a hexagonal wrench to operate the valve stems.
7). Mount the valve stems nuts and the service port cap
Содержание PAC1203711
Страница 1: ...Service Manual PAC1203711 PAC1803711 PAC2403711 ...
Страница 9: ...Model L mm R mm H mm Dimension of installation hole mm PAC1203711 100 95 45 65 PAC1803711 110 100 45 ...
Страница 10: ...Model L mm R mm H mm Dimension of installation hole mm PAC2403711 293 163 45 65 H L R ...
Страница 24: ...Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage ...