Operating Instructions and Installation
Samsung Electronics3-10
3-2-2(f) Air-Purge Procedure
1. Connect each assembly pipe to the appropriate valve on the
outdoor unit and tighten the flare nut.
3. Open the valve of the low pressure side of manifold gauge
counter-clockwise.
6. Mount the valve stem nuts to the 2-way and 3-way valve.
6. And mount the service port cap to 3-way valve.
4. Purge the air from the system using vacuum pump for about
30 minutes.
- After that, please recheck that pressure is staloilization.
- Close the valve of the low pressure side of manifold gauge
clockwise.
- Remove the hose of the low pressure side of manifold
gauge.
7. Check for gas leakage.
6. - At this time, especially check for gas leakage from the
3-way valve’s stem nuts, and from the service port cap.
5. Set valve cork of both liquid side and gas side of packed
valve to the open position.
2. Connect the charging hose of low pressure side of
manifold gauge to the packed valve having a service port
(3/8” Packed valve) as shown at the figure.
A
B
C
D
Outdoor unit
Indoor unit
Gas pipe side
Liquid pipe side
Vacuum Pump
B
(liquid)
A
(gas)
Valve stem
Stem cap
DB98_06187A(2)_1 2/19/03 2:50 PM Page 2-14
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