Samsung AP-3607BR Owner's Instructions & Installation Manual page 33

AIR PURGE
AIR PURGE
● Be sure to perform the air purge of the indoor unit, and piping using the refrigerant of the outdoor unit at
the time of installation.
1. Connect the charging hose of low pressure side of manifold
gauge to the packed valve having a service port (5/8"
Packed valve) as shown at the figure.
2. Open the valve of the low pressure side of manifold gauge
counter-clockwise.
3. 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.
4. Set valve cork of both liquid side and gas side of packed
valve to the open position.
5. Mount the valve stem nuts to the 3-way valve.
And mount the service port cap to 3-way valve.
6. 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.
32
E-
Outdoor unit
A
Gas pipe side
B
Liquid pipe side
B
(gas)
(liquid)
Valve stem
Indoor unit
C
D
Vacuum Pump
A
Stem cap