Compressor
The main goal of a basic refrigeration system is to ____________ temperature in an area by removing ____________ from it.
Lower Heat
In the Condenser, the refrigerant ________ Heat.
Rejects
True or False
"Change of State" is another way of Saiyan "Phase Change".
True
At the Metering Device, the refrigerant enters as a high pressure, high temp liquid and exits as a low pressure, low temp _______.
A. Vapor B. Solid
C. Liquid D. None of the Above.
C. Liquid.
At the Evaporator, the refrigerant enters as a low pressure, low temp liquid and exits as a low pressure, low temp ________________.
A. Superheated Vapor B. Superheated Liquid
C. Subcooled Liquid D. Subcooled Vapor
A. Superheated Vapor
Vapor Vapor
At the condenser, the refrigerant enters as a high pressure, high temperature superheated vapor and exits as a high pressure, high temperature, _______ liquid.
Subcooled
True or False
During the phase change, the refrigerant is in the saturated state.
True
Installed on the Liquid Line to trap any water and debris from flowing through the system.
What is "Filter Dryer"
Superheat occurs when the refrigerant gains heat after it has changed from a saturated state into a ________ state.
A. Vapor B. Solid
C. Liquid D. None of the Above.
A. Vapor
What pressurizes vaper refrigerant?
Compressor
___________ occurs when the refrigerant loses heat after it has changed from a saturated refrigerant to a liquid.
A. Superheating B. Total Superheating
C. Subcooling D. Saturation
C. Subcooling
Changes the direction of the refrigerant flow in a system
Reversing Valve
Comprised of a large vapor tube and a small liquid tube.
What is "Line Set"
Where the refrigerant absorbs heat and changes to a vapor.
Evaporator Coil
Allows the flow of refrigerant to be shut off for servicing and provides an access to read system pressures.
A. Ball Valve B. Service Valve with Port
C. Schrader Valve D. None of the above.
B. Service Valve with Port.
A tank that protects the Compressor by only allowing vapor refrigerant to enter the suction side of the compressor.
Accumulator.
Both liquid and vapor exist at the same moment, in the same location.
Saturated
A restriction that causes the refrigerant to reduce in pressure in order to expand: can be fixed or regulating.
What is "Metering Device"
The temp increase of vapor refrigerant above its saturated temp.
Superheat.
Explain what the role of the compressor has in separating the high and low sides of a system.
At the compressor inlet there is low pressure, low temp, superheated vapor and at the compressor outlet there is high pressure, high temp, superheated vapor.
Explain what the role the metering device has in separating the high and low sides of a system.
Metering devise inlet has high pressure, high temp, subcooled liquid and the outlet has low pressure, low temp, subcooled liquid.
Where the refrigerant rejects heat and changes to a liquid.
Condenser Coil.
How is a regulating metering device such as a TXV different than a piston metering device?
A TXV reduces or enlarges the orifice size depending on the heat load of the evaporator.
A piston is a fixed orifice.
Subcooling.