Author Question: When the refrigerant passes through the metering device, some of it starts to flash from a liquid to ... (Read 36 times)

wenmo · **on:** Jul 24, 2018

When the refrigerant passes through the metering device, some of it starts to flash from a liquid to a gas because:

A) The pressure has increased above the saturation point.
B) A large amount of heat is added to the refrigerant in the metering device.
C) Of the turbulators located near the end of the metering device.
D) The pressure has dropped to the saturation point.

Question 2

When applied to systems with air-cooled condensers, what is the lowest outside ambient temperature at which balanced-port valves can typically work without head pressure control?

A) 35F B) 15F C) 45F D) 25F