After the NetCol5000-A25kW half-cabinet air-conditioning refrigerant pipeline is installed, do the nitrogen charge pressure maintaining, the nitrogen pressure is () Mpa.

After the NetCol5000-A25kW half-cabinet air-conditioning refrigerant pipeline is installed, do the nitrogen charge pressure maintaining, the nitrogen pressure is () Mpa.
A . 0.8
B . 2
C . 2.5
D . 3

View Answer

Answer: D