Soleus Air KFHIP-09-OD installation manual Air Purging and Leakage Test, Install the Outdoor Unit

◆Install the Outdoor Unit

•Air Purging and Leakage Test

1.Remove the flare nuts of charging end from gas valve.

2.Connect the charging hose in the middle to the vacuum pump, then Low-pressure (Lo) end should be connected to charging end of gas valve. (Shown in Fig. 9)

3.Open the vacuum pump to evacuate. When multi-meter indicates 1 bar, fully tighten Lo handle of manifold valve and stop evacuation. Keep it for over 15 minutes to ensure the pressure is constant.

4.Remove bonnets of gas and liquid valve.

5.Slightly loosen core of liquid valve with hexagon wrench until the pressure exceeds 0 bars.

6.Remove charging hose from charging end of gas valve and screw the flare nuts of charging end.

7.Open cores of gas and liquid valve entirely by hexagon wrench.

8.Tighten the bonnets of gas and liquid valve, and then test whether there is any leakage or not.

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