Purge The Air From The System - mabe MMI09CDBWCCCHI8 Manual Del Propietário

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purge the air from the system

The air that contains moisture and remains in the refrigeration cycle
may cause a malfunction on the compressor. After connecting the
indoor and outdoor units, release air and moisture from the refrig-
erant using a vacuum pump, as described below.
Note: To protect the environment, be sure not to discharge the re-
frigerant directly into the air.
1. Unscrew and remove caps from the 2 and 3-way valves.
2. Unscrew and remove cap from the service valve.
3. Connect vacuum pump flexible hose to the service valve.
4. Run vacuum pump for 10 to 15 minutes until reaching a vacuum
of 10 mm Hg absolute.
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 detec-
tor.
7. Turn 2 and 3-way valves stems to fully close both valves. Discon-
nect the flexible vacuum pump hose.
8. Replace and tighten all valve caps.