Show:
Compressors
Condensers
Evaporators
Metering Devices
Supermarket Refrigeration
100
Hermetic,Semi hermetic,and open are ____ compressors
What is reciprocating
100
Where latent heat of __________ occurs.
What is Condensation
100
A pipe which transports condensate outside of the building.
What is a Drain Line?
100
A device which maintains constant superheat.
What is a TXV?
100
The temperature at which meat should be stored/displayed.
What is 28 degrees F?
200
Piston drops thus lowering pressure in the cylinder, pulls intake valve open, and sucks vapor into the cylinder.
What is Compressor Intake?
200
The difference between the condensing temperature and the incoming air from the condenser.
What is a Condenser Split?
200
To remove moisture from a refrigerated space.
What is Dehumidification?
200
A 2 degree F increase in superheat on a Sporlan TXV.
What is one half-turn clockwise?
200
The temperature at which frozen food should be stored.
What is -10 degrees F?
300
Upon completion of an Intake stroke the piston is at the bottom of the cylinder and the intake valve closes. What happens to the pressures?
What is Equalize or Equalization?
300
Two methods with which to control head pressure.
What are Fan Cycle Controls and Condenser Flooding.
300
Any heat absorbed after a liquid has vaporized into a 100% saturated vapor.
What is Sensible Heat or "Superheat"?
300
A common tool used by technicians to secure sensing bulbs to the line.
What is a Radiator Clamp?
300
A system with multiple compressors on a single refrigeration circuit.
What is a Parallel Rack System?
400
Compression Ratio Calculation.
What is Absolute Discharge Pressure / Absolute Suction Pressure?
400
Water flows within the inner tube of the condenser while the refrigerant flows through the outer tube.
What is a Water Cooled Condenser?
400
Air temperature entering the evaporated - Leaving Evaporator.
What is Delta T?
400
A device which senses evaporator outlet pressure to maintain consistent superheat.
What is an Externally Equalized TXV?
400
A valve used to maintain specific suction pressure in the evaporators connected to the same condensing unit.
What is an Evaporator Pressure Regulating Valve (EPR Valve)?
500
Surfaces which become diluted during the start-up of a Flooded Start.
What are Crankshaft Bearing Surfaces?
500
Restricts liquid flow out of the condenser, backs up refrigerant, raises head pressure, and bypasses hot gas (+ some liquid) to receiver.
What is a Head Pressure Regulating Valve?
500
A "time initiated" system control.
What is Defrost?
500
The phenomenon of some liquid flashing to vapor through a pressure drop.
What is Adibiatic Expansion?
500
The equivalent of a 0.5% increase in system efficiency.
What is 1 degree F of subcooling?