dkemper
02-08-2007, 02:35 AM
What is the best technique to adjust the superheat on a multiple evaporator unit?
Should I close off the solenoid valve for one evaporator and adjust the valves when they are the only one supplied with refrigerant or is it best to adjust and balance the expansion valves with both supplied with refrigerant?
It seems to me both techniques have issues.
If each is adjusted separately, the compressor becomes over capacity for the single evaporator.
If both are left running, I'd think it be quite the challenge to balance the real pressures and refrigerant flows through the different valves since the settings on one would effect the overall pressures in the entire system.
I think I'm tempted to start with each valve isolated from the other and once close, then balance them together.
I guess I'm asking, what is the best practice?
Thanks!
Win
Should I close off the solenoid valve for one evaporator and adjust the valves when they are the only one supplied with refrigerant or is it best to adjust and balance the expansion valves with both supplied with refrigerant?
It seems to me both techniques have issues.
If each is adjusted separately, the compressor becomes over capacity for the single evaporator.
If both are left running, I'd think it be quite the challenge to balance the real pressures and refrigerant flows through the different valves since the settings on one would effect the overall pressures in the entire system.
I think I'm tempted to start with each valve isolated from the other and once close, then balance them together.
I guess I'm asking, what is the best practice?
Thanks!
Win