Air Purge - Samsung AP500F Owner's Instructions & Installation Manual

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 (3/4" 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.
Outdoor unit
A Gas pipe side
Liquid pipe side
B
A
B
(gas)
(liquid)
Valve stem
/
Indoor unit
C
D
Vacuum
pump
Stem cap
29
E-