Installation procedure

Refrigerant piping

Vacuum pumping

With a vacuum pump, create vacuum from the stop valve of the outdoor unit.

Emptying with refrigerant sealed in the outdoor unit is absolutely forbidden.

Open all valves

Open all the valves on the outdoor unit.

Gas leakage detection

Check with a leakage detector or soap water that if there is gas leakage at the pipe connections and bonnets.

Insulation treatment

Conduct insulation treatment on both the gas side and liquid side of pipes respectively. During cooling operation, both the liquid and gas sides are cold and thus shall be insulated

so as to avoid dew generation.

The insulating material at gas side shall be resistant to a temperature above 120*.

The indoor unit pipe connection part shall be insulated.

The notch upward (Attached detail view)

Indoor unit

Field piping side

Subsidiary insulation tube

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MRV Communications AE092FCAHA, AE182FCAHA manual Vacuum pumping, Open all valves, Gas leakage detection

AE092FCAHA, AE182FCAHA specifications

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