Air-Purge Procedureand Pipe - Samsung AQ07A1VE Service Manual

Operating Instructions and Installation
3-2-2(g) Air-Purge Procedureand pipe.
1. Connect each assembly pipe to the appropriate valve on the
outdoor unit and tighten the flare nut.
2 Connect the charging hose of low pressure side of manifold
gauge to the packed valve having a service port (3/8" or
1/2" Packed valve) as shown at the figure.
3 Open the valve of the low pressure side of manifold gauge
counter-clockwise.
4. Purge the air from the system using vacuum pump for about
10 minutes.
- Close the valve of the low pressure side of manifold gauge
clockwise.
- Remove the hose of the low pressure side of manifold
gauge.
5. Set valve cork of both liquid side and gas side of packed
valve to the open position.
6. Mount the valve stem nuts to the 2-way and 3-way valve.
And mount the service port cap to 3-way valve.
7. Check for gas leakage.
- At this time, especially check for gas leakage from the
3-way valve's stem nuts, and from the service port cap.
3-10
Outdoor unit
Gas pipe side
A
Liquid pipe side
B
B
(liquid)
Valve stem
Indoor unit
C
D
Vacuum Pump
A
(gas)
Stem cap
Samsung Electronics