Samsung ASH-0906ER - Air-Purge Procedure

Samsung Electronics
3-10
Operating Instructions and Installation
3-2-2(g) Air-Purge Procedure
 Use the refrigerant of the outdoor unit to purge air inside indoor unit and pipe.
1. Remove the caps from the 2-way valve(B)
and the 3-way valve(A).
2 Turn the 2-way valve cock approx. 45°
counterclockwise to open it. Close it
about 10 seconds later.
6. Open the 2-way valve and 3-way valve
completely
7. Close the cap of each valve.
8. Check each valve for leakage.
3 Check refrigerant leakage of each joint parts
(A, B, C & D in right figure)
4. Open the 2-way valve again.
5. Open the service valve cap of the 3-way
valve and press the needle valve to
discharge gas for 3 seconds and leave it
for about 1 minute.
Repeat the above procedure for 3 times
to purge air.
Leaking
If leaking, tighten the flare nut one more time.
If continues to leak, although the pipe fixing
area has been tightened again,
repair the leaking area.
Ieaking
not
leaking
A
B
C
D
Indoor Unit
Half union
Gas pipe side
3-way valve
Outdoor Unit
2-way valve
Liquid pipe side
2-Way Valve
3-Way Valve
Flare nut
Stopper
Valve
Stem
Valve
body
Valve Stem cap