Evaporators Flashcards
1
Q
High temp refrigeration temp ranges
A
47f - 60f
2
Q
Medium temp refrigeration box temps
A
28f - 40f
3
Q
Low temp refrigeration box temps
A
-20f - 0f
4
Q
What type of expansion device to flooded evaporators use ?
A
Float type device
5
Q
Why is a multi circuit evaporator used ?
A
Reduced pressure drop across the coil
6
Q
What is commonly used to defrost ice buildup on low temp evaporators ?
A
Electric heat, hot gas from compressor
(During off cycle - pumped down)
7
Q
Fin spacing ?
A
A/C = 14 fine/lnch
Cooler = 8-10 fins/inch
Freezer = 4-6 fins/inch
