２１
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Install outdoor unit
Air purging and leakage test
Electric Wiring
1. Disassemble handle of right side plate or front side plate of outdoor unit.
4. Ensure if wire has been fixed well.
5. Install handle or front side plate.
NOTE:
Wrong wiring may cause
spare parts malfunction.
After the cable fixed, make sure
there should be a free space
between the connection and
fixing place on the lead wire.
2. Take off wire clamp, connect and fix power connect cord to terminal of line bank.
Wiring should fit that of indoor
unit.
3. Fix the power connection cable with wire clamp, for cooling and heating unit, then use the
wire clamp to fix the signal control wire, then connect the corresponding connector.
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5
-1.0 10
pa(-76cmHg)
５
Air purging and leakage test
Liquid pipe
Gas pipe
Valve
cap
Vacuum
gauge
Vacuum pump
Fig.
1. Connect charging hose of manifold valve to charge end of low
pressure valve (both high/low pressure valves must be tightly
shut).
2. Connect joint of charging hose to vacuum pump.
3. Fully open handle handle of Lo manifold valve.
4. Open the vacuum pump to evacuate. At the beginning, slightly
loosen joint nut of low pressure valve to check if there
is air coming inside.
5. After finishing evacuation, shut Lo handle of manifold
valve to stop the vacuum pump. (Keep evacuating for
more than 15 minutes and make sure the reading of
multi-meter is
6. Fully open high/low pressure valves.
7. Remove charging hose from charging end of low
pressure valve.
8. Tighten bonnet of low-pressure valve. (As shown in Fig.5)
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