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FTC HVA 1220 Midterm Test

True/False
Indicate whether the statement is true or false.

Tc: Temperature at condenser or liquid line.
Te= Temperature at evaporator or suction line.

Ts= Saturation temperature from P/T chart.

SH(Super Heat)= Te-Ts
SC(Subcooling)= Ts-Tc
 

 1. 

The Super heat (SH) at value for a gas with these specs is:
GAS: R-134A
Te=59.6 °F
PSIG= 45

SH= 10°F
 

 2. 

The Super heat value for a gas with these specs is:
GAS: R-134A
Te=70 °F
PSIG= 60

SH= 8  °F
 

 3. 

The Super heat value for a gas with these specs is:
GAS: R-134A
Te=40.6 °F
PSIG= 30

SH= 6  °F
 

 4. 

The Subcooling (SC) value for a gas with these specs is:
GAS: R-134A
Tc=90.5 °F
PSIG= 125

SC= 10  °F
 

 5. 

The Subcooling  value for a gas with these specs is:
GAS: R-134A
Tc=97.3 °F
PSIG=140

SC= 10  °F
 

 6. 

The Subcooling  value for a gas with these specs is:
GAS: R-134A
Tc=95.8. °F
PSIG=160

SC= 10  °F
 

 7. 

The Subcooling  value for a gas with these specs is:
GAS: R-22
Tc=108.1 °F
PSIG=250

SC= 10  °F
 

 8. 

The Subcooling  value for a gas with these specs is:
GAS: R-22
Tc=122.1 °F
PSIG=300

SC= 10  °F
 

 9. 

The Subcooling  value for a gas with these specs is:
GAS: R-410 A
Tc=106.1 °F
PSIG=400

SC= 10  °F
 

 10. 

The Subcooling  value for a gas with these specs is:
GAS: R-410 A
Tc=116.8 °F
PSIG=460

SC= 10  °F
 



 
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