Author Question: A system using R-404a has an evaporation temperature of 20F. If the line length is 100 ft and a 7/8 ... (Read 30 times)

jCorn1234 · **on:** Jul 27, 2018

A system using R-404a has an evaporation temperature of 20F. If the line length is 100 ft and a 7/8 in line is used, what is the maximum capacity of the system?

A) 2 tons B) 3 tons C) 2.5 tons D) 1.5 tons

Question 2

The hot gas lines need to be insulated:

A) Always.
B) If they are exposed to cold temperatures that could cause the refrigerant to condense in the line.
C) For systems using HFC refrigerants.
D) Never.