2A652 vol 4 Ed. 6.
A heat setting is selected.
A constant flame is established.
The temperature gauge reads COOL.
The inside temperature reaches 140 degrees Fahrenheit (°F).
When the temperature gauge reads COOL.
Never, as it will result in serious engine damage.
When ambient temperature is below 32 degrees Fahrenheit (°F).
During the engine start up with the ignition switch in PREHEAT position.
Ample warm-up time.
A minimum of 45 seconds.
System voltage indicates 120 volts alternating current (VAC).
The inside chamber temperature reaches 140 degrees Fahrenheit (°F).
Without first talking with the operator.
Without first consulting your supervisor.
Unless accurate technical data is available.
Unless in the presence of an experienced mechanic.
Operate in moderate to high pressure.
Operate in low to moderate pressure.
Be semi-corrosive to metals.
Have a high boiling point.
30 pounds of oil pressure is reached on the engine oil pressure gauge.
The start switch is released.
The engine warms up.
The engine starts.
Low pressure cutout.
Pressure control cutout.
Compressor pump down overload.
Remove and store refrigerant.
Remove refrigerant and separate acids from the refrigerant.
Remove and store refrigerant and separate oil and acids from the refrigerant.
Receiver inlet valve.
Receiver outlet valve.
Discharge service valve.
An air compressor fan only.
An expansion turbine only.
A heat exchanger and an expansion turbine.
An expansion turbine and a compressor fan.
Ensure the engine is at governed speed before engaging compressor.
Allow compressor oil and discharge pressures to stabilize.
Defrost the evaporator.
Build-up oil pressure.
Condensing refrigerant absorbs heat from the air stream.
Boiling refrigerant absorbs heat from the air stream.
Condensing refrigerant looses heat to the air stream.
Boiling refrigerant looses heat to the air stream.
Permit refrigerant pressure to equalize.
Perform maximum refrigerant pump down.
Place heating/cooling switch in HEATING position.
Place the reversing valve lever in the HEATING position.
Isolate the problem.
Perform a service inspection.
Perform an operational check.
Recognize the write-up as a malfunction.
Sweating at the outlet of a component.
Frosting at the outlet of a component.
Abnormal compressor noise.
Increased suction pressure. Please
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