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31-08-2009, 10:14 AM #1
Changing length of the evaporating coil
Dear members,
I am upgrading my existing cooling unit. Presently the unit has 750 BTU compressor, which I am increasing to 3600 BTU. The evaporating coil is presently of SS, 5/16" (8 mm) dia.
Coil length is 8 metres
Evaporating coil temperature is -7 degrees
The ambient temperature is around 40 degrees
The condensing temperature is around 55 degrees
Please suggest by how many times I have to increase the length of the evaporator coil to match the new compressor rating.
If any one can suggest the method to calculate the length of the evaporator coil based on these parameters, I would be highly obliged
Thanks and regards
Giridhar
PS: The present design is working perfectly.
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