deepakp
27-07-2011, 06:59 AM
Hi,
We have a refrigeration system (propane based) with 2 parallel oil injected screw compressors and common evaporator, economiser. There is a 'superfeed' line from the economiser to the compressor.
Recently the superfeed pressure (along with the economiser pressure) goes up and beyond a particular pressure starts affecting the refrigeration. (Temperature goes to -8 deg C from -16 deg C). When compressor is changed over the problem disappears.
Economiser has liquid level through out.
Any ideas on what could be wrong. Will low levels of refrigerant circulating in the system cause such behaviour? Or is it a compressor related issue?
Thanks for your time...
Deepak
We have a refrigeration system (propane based) with 2 parallel oil injected screw compressors and common evaporator, economiser. There is a 'superfeed' line from the economiser to the compressor.
Recently the superfeed pressure (along with the economiser pressure) goes up and beyond a particular pressure starts affecting the refrigeration. (Temperature goes to -8 deg C from -16 deg C). When compressor is changed over the problem disappears.
Economiser has liquid level through out.
Any ideas on what could be wrong. Will low levels of refrigerant circulating in the system cause such behaviour? Or is it a compressor related issue?
Thanks for your time...
Deepak