Industrial refrigeration B Flashcards
1
Q
refrigerant in centrifugal chillers
A
R-22 R-134
2
Q
major difference in liquid overfeed system
A
hand expansion valve instead of metering device
3
Q
refrigeration unit for hockey rinks
A
flooded evaporator system
4
Q
refrigerant and coolant for flooded evaporator system
A
ammonia as refrigerant
brine as coolant
5
Q
compressor for ammonia in flooded evaporator system
A
reciprocating
6
Q
freezing point of brine mixture
A
-20C
7
Q
requirement for ammonia system
A
fire line
dual relief valve
8
Q
verify gas tight in lithium bromide chiller
A
helium environment
