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Hi
3 hp Condensing unit connected to 20000 btu evaporator in Walk In Cooler. Customer wants to add
Small Cooler case maybe 4000 btu to the same line.
I heard that condensing unit should be bypassed to have this setup
PS
Thanks Magoo
I did not put my problem correctly
you can bypass the condensing unit if you dont want refrigeration effect.what is your grasp of the term basic commercial condensing unit,mine is compressor+condenser+receiver=simple condensing unit
Sorry for my stupidity
My question is simple
Some times and maybe more when Walk in Cooler solenoid will close line
3 HP compressor will push refrigerant to 4000 btu coil ?
no it wont the tx valve or similar will create the other pressure drop for refrigerant flow
Thank you for replay
May be I cannot explain clearly
It is two different evaporators in two different locations
This system will have big difference in capacity
Between 20000 btu +4000btu (24000) and 4000
And compressor on low capacity will starting and stopping continuously
I am not sure but I think I found answer
I need discharge bypass valve
What do you think
Thank you again
YOU NEED A HOT GAS BY PASS VALVE FOR COMPENSATING THE CAPACITY DROP ( DIFFERENCE IN BTUs) . this would ensure that the condensing unit operates on small capacity evaporator . alternatively , you can install a frequency drive . HOWEVER THE LOW CAPACITY EVAPORATOR USING A HIGH CAPACITY COND UNIT WILL RESULT IN OIL RETURN ISSUES .