How to Conduct Wotech Heat Pump Leakage Check?

How to Conduct Wotech Heat Pump Leakage Check?

There are three leakage checks during heat pump production in Wotech. 

After the building of refrigeration system, nitrogen is charged into the copper pipes. Soap-suds is brushed on the surface of copper pipes especially the welding point. If leakage exist, there are bubbles popping out.

The second leakage check is conducted after the charging of refrigerant. The welding points are checked with the sniffer. Leakage detector can recognize the leakage of 2g/year. 

The third leakage check is after the performance testing. Refrigeration runs through the whole system. Leakage is easier to be found. 

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