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Thread: SCREW Compressor Problem
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28-01-2006, 05:32 PM #1
Re: SCREW Compressor Problem
Originally Posted by lana
As you pointed out the discharge pressure gauge could be upstream of the check valve, so the discharge pressure could have indeed read a vacuum also.
I cannot go for the thermosyphon theory. If the liquid line solenoid was open, the liquid could flow into the evaporator IF the evaporator was colder to allow migration (another term that could be used incorrectly for a thermosyphon). A thermosyphon effect/flow is created by a difference in densities of the volatile fluid.
The fluid density difference is created by a temperature differential between two points. Then the fluid will then actually circulate.
However, you said the system had been off several months so I cannot see the refrigerant migrating to the evaporator. The evaporator was probably just as warm as the receiver.
In all probability, the problem was caused by the defective? thermostat not allowing the liquid line solenoid to open.
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