Beko BEHPI 090, Installation Manual

Page: 45 / 120

Split-type room air conditioner / Installation Manual
45 / 120 EN
Manifold gauge
Low pressure valve
Fig. 8.1
Compound gauge
-76cmHg
Low pressure valve
Pressure hose/Charge hose
Pressure gauge
High pressure valve
Charge hose
Vacuum pump
1. Connect the charge hose of the manifold gauge to service port on the outdoor unit’s low pressure
valve.
2. Connect another charge hose from the manifold gauge to the vacuum pump.
3. Open the Low Pressure side of the manifold gauge. Keep the High Pressure side closed.
4. Turn on the vacuum pump to evacuate the system.
5. Run the vacuum for at least 15 minutes, or until the Compound Meter reads -76cmHG (-10
5
Pa).
6. Close the Low Pressure side of the manifold gauge, and turn off the vacuum pump.
7. Wait for 5 minutes, then check that there has been no change in system pressure.
8. If there is a change in system pressure, refer to Gas Leak Check section for information on how to
check for leaks. If there is no change in system pressure, unscrew the cap from the packed valve
(high pressure valve).
9. Insert hexagonal wrench into the packed valve (high pressure valve) and open the valve by turning
the wrench in a 1/4 counterclockwise turn. Listen for gas to exit the system, then close the valve
after 5 seconds.
10. Watch the Pressure Gauge for one minute to make sure that there is no change in pressure. The
Pressure Gauge should read slightly higher than atmospheric pressure.
8 Air evacuation