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Piping
Liebert
®
SRC
™
User Manual 70
5.5.3 Removing Purge and Test Equipment
When evacuation is completed, turn-off all valves a t the outdoor unit and safely disengage the manifold
valve and vacuum pump using the following steps.
1. Using a wrench, turn the valve of the liquid stem counter-clockwise to fu
lly open the valve, Figure 5-
40, page 67.
2. Turn the valve of the gas temp counter-clockwise to fully open the valve.
3. Loosen the charge hose connected to the gas-side service port slightly to release the pressure, and
remove the
hose.
4. Replace the flare nut and its cap on the gas service port, and fasten the flare nut securely using an
adjustable wrench.
• This step is very important to prevent leakage from the system.
5. Replace the valve caps at both
gas- and liquid-side service valves and fasten them tightly.
MFL67502030 17. 7. 13. 오오 3:05 Page 80
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