Chapter 12: Vapour Cycle Air conditioning Flashcards
1
Q
what is R134a
A
tetrafluoroethane
2
Q
R134a boiling point
A
-15 degF
3
Q
purpose of receiver dryer
A
reservoir for vapour cycle system (stores refrigerant)
4
Q
problems when water is in refrigerant
A
1) refrigerant mixed with water forms acid
2) water can form into ice and block flow of refrigerant
5
Q
purpose of stand tube in receiver dryer
A
remove refrigerant from receiver dryer
6
Q
how to know if system is low on refrigerant?
A
bubbles in sight glass
