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TM 5-4120-375-14
operation of the refrigeration system.
SERVICE VALVES- Valves for suction and discharge when air
gerant is being tested and serviced.
SIGHT GLASS- A diagnostic tool to observe refrigerant flow
l e v e l .
APPENDIX F
GLOSSARY
COMPRESSOR-
Compresses low pressure refrigerant vapor from the evaporator
into high pressure, high temperature vapor.
CONDENSER-
Cools the hot, high pressure refrigerant gas causing it to
condense into high pressure liquid refrigerant.
CRANKCASE HEATER-
Prevents migration of liquid refrigerant into the com-
pressor in cold weather.
EVAPORATOR-
Cools and dehumidifies the air
FILTER-DIRER-Removes any traces of moisture
before it enters the room.
from the refrigerant system.
HIGH PRESSURE CUTOUT-
Interrupts power to the compressor when the refrigerant
system pressure becomes too high.
LIQUID LINE SOLENOID- Opens or closes the liquid refrigerant line from the
condenser coil to the evaporator coil expansion valve.
LOW PRESSURE CUTOUT-
Interrupts power to the compressor when the refrigerant
system pressure becomes too low.
LIQUID THERMAL EXPANSION VALVE-
Meters liquid refrigerant into the evaporator
c o i l d i s t r i b u t o r .
QUENCH THERMAL EXPANSION VALVE-
Injects liquid refrigerant into the
recirculatting gas in the bypass circuit to maintain the
temperature of the gas below its extreme limit.
RECEIVER-
A reservoir for liquid refrigerant which tends to stabalize
conditioner refri-
and refrigerant
F-1/(F-2 blank)
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