Installation of Unit
Vacuum
Drying of
the
Connecting
Pipes
and
the
Indoor
Unit
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor.
1.Confirm that both the liquid side valve and the gas side valve are set to the closed position.
2.After connecting the piping, check the joints for gas leakage with gas leak detector.
3.Remove the service port nut, and connect the gauge manifold and the vacuum pump to the service port by the charge hose.
4.Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below - 76cmHg.
5.Remove the valve stem nuts, and fully open the stems of the
6.Tighten the valve stem nuts of the
7.Disconnect the charge hose and fit the nut to the service port. (Tightening torque: 1.8kg.m)
Indoor unit | Liquid side |
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| Closed | Outdoor unit |
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| Gas side |
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| valve | Closed |
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Vaccum pump |
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OPEN | CLOSE |
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| Installation Manual | 17 |
ENGLISH
