The function of the check valve in the NetCol5000-A air conditioning system is ( ).
A . Filtration of impurities in the system
B . Controlling refrigerant flow
C . Effective control of gas or liquid backflow
D . Protect the water pump
Answer: C
The function of the check valve in the NetCol5000-A air conditioning system is ( ).
A . Filtration of impurities in the system
B . Controlling refrigerant flow
C . Effective control of gas or liquid backflow
D . Protect the water pump
Answer: C