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Installation instructions
INNOVAIR DC INVVERTER QUANTUM
SERVICE MANUAL
w w w . i n n o v a i r . c o m
1. Unscrew and remove caps from 2 and 3-way valves.
2. Unscrew and remove cap from service valve.
3. Connect vacuum pump flexible hose to the service valve.
4. Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.
5. With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop
the vacuum pump.
6. Open 2-way valve , 1/4 turn, then close it after 10 seconds. Check tightness of all joints using liquid
soap or an electronic leak detector.
7. Turn 2 and 3-way valves stem to fully close the valves. Disconnect the flexible vacuum pump hose.
8. Replace and tighten all valve caps.
Air purging
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the
compressor. After connecting the indoor and outdoor units, release air and moisture from the refrigerant
cycle using a vacuum pump, as shown below.
Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.
How to Purge Air Tubes: