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TriPac Glossary
61
high pressure relief valve:
A safety valve on the
refrigeration system that allows refrigerant to escape from the
system if pressure exceeds a predetermined value.
hp (horsepower):
A unit of power equivalent to 746 watts
or 550 foot-pounds per second.
HPCO (High Pressure Cut Out Switch):
A
pressure-operated switch that opens to stop unit operation
when discharge pressure reaches a predetermined maximum.
kPa:
Kilopascals. A metric unit of pressure. 1 kPa = 0.01 bar =
0.145 psi.
LPCO (Low Pressure Cut Out Switch):
A
pressure-operated switch that opens to stop unit operation
when suction pressure reaches a predetermined minimum.
no. 1 diesel fuel:
A grade of diesel fuel formulated to
prevent “jelling” in low ambient temperatures.
no. 2 diesel fuel:
A grade of diesel fuel formulated for
moderate to warm ambient temperatures.
ohm:
An electrical unit measuring the amount of resistance
(opposition to the current flow) in an electrical circuit.
pre-heat:
The heating of diesel engine glow plugs prior to
start-up. Some engines use an intake manifold heater rather
than glow plugs.
pre-trip inspection:
Checking the operation of a
refrigeration system before loading.
psi:
Pounds per square inch. A unit of pressure.
1 psi = 0.069 bar = 6.89 kPa.
psig:
Pounds per Square Inch Gauge. Pressure in pounds per
square inch as displayed by a gauge calibrated to zero when
open to the atmosphere.
receiver tank:
A refrigerant storage device included in
nearly all Thermo King units.
refrigerant:
The medium of heat transfer in a refrigeration
system which absorbs heat by evaporating at a low temperature
and releases heat by condensing at a higher temperature.
refrigerant oil:
A special oil used to lubricate compressors in
refrigeration systems.
rpm:
Revolutions per minute.
Summary of Contents for TriPac
Page 2: ......
Page 7: ...Table of Contents 3 Recover Refrigerant 64 CALIFORNIA Proposition 65 Warning 65...
Page 8: ...Table of Contents 4...
Page 10: ...Introduction 6...
Page 26: ...Manual Pretrip Inspection Before Starting the TriPac Unit 22...
Page 38: ...TriPac HMI Controller Description and Operation 34...
Page 58: ...Maintenance Inspection Schedule 54...
Page 60: ...TriPac Warranty 56...
Page 62: ...Serial Number Locations 58...
Page 70: ...66...
Page 71: ......