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What could happen if a semi hermetic compressor is operated with the suction service valve backseated and the discharge valve frontseated?

the compressor capacity will increase


What is suction and discharge superheat?

Suction superheat is the heat added to the refrigerant above that required to change its state from liquid to vapour (as happens in the evaporator). This heat is added both in the evaporator, in the suction line and (where applicable) in the suction accumulator.Discharge superheat is suction superheat plus heat of compression, and must be removed in the condenser before condensation, the change of state from vapour to liquid, can occur.The HVAC Veteran


How do you calculate superheat temp?

take your gages and put them on the beginning of the evaporator (afte metering device or txv) and look at saturation temp then get your temp at the suction line (before the compressor)


What is the superheat if the suction pressure is 60 psig and the suction line temperature is 40 degrees?

-5 something is wrong


How is work quench valve in reefer?

A refrigeration circuit is provided with a quench line connecting the liquid line and the suction line and containing a QEV. The QEV is controlled responsive to the superheat of the refrigerant supplied to the compressor. By injecting liquid refrigerant downstream of the suction modulation valve and the sensor for the TXV, the system can be operated at low capacity without overheating the compressor oil.


Descride two methods for cooling and overheated compressor?

1) Most hermetic compressors are cooled by the suction gas. If there is an undercharge, there will be an undercooling (or overheating) of the motor. 2) Ambient air is used to cool the air in the fan department.


What side of compressor is suction on 5.9 V8 1996 Dodge?

The larger line is suction. The larger line is the suction side which should be on the right side of the compressor......


What is the relationship between evaporator air flow and suction superheat?

air flow and liquid change of state


What is suction machine?

The opposite of a compressor. A vacumn cleaner is a suction device. Were you ever on a baby bottle. You used suction to get the formular out of there. A suction machine sucks!


How do you mesure superheat?

take your gages and put them on the beginning of the evaporator (afte metering device or txv) and look at saturation temp then get your temp at the suction line (before the compressor) then take you first temp and your second temp and subtract you highest temp from you lowest temp and that would be your superheat


How would you prove a bad suction reed in a compressor?

To prove a bad suction reed in a compressor, you would need to do a pressure test. You can isolate the compressor and check for pressure drop in the suction line. A significant pressure drop would indicate a faulty suction reed. Additionally, you can inspect the reed valve for visible signs of damage or wear.


What is a suction line on an Air Conditioner?

The suction line connects the evaporator outlet and the compressor intlet. Low pressure refrigerator vapour is drawn from the evaporator to the compressor through this line.