El Padre
01-07-2009, 03:43 PM
Hi,
I just had to get out of the sun for a couple of minutes as my client is going to wonder why my face is tanned and not the back of my neck!
I have a site with the above chiller, during the winter or prolonged periods of low demand, circuit number two fails on low oil pressure/flow, I can understand why as the compressor runs unloaded for extended periods of time, I left the circuit locked out on the control panel, I pumped the circuit down today and then ran it and monitored it carefully;
Sat. Suction = 4 Sat. Condensing = 39 SH = 5 SC = 6 Oil Pressure = 763 Kpa Oil Temp. = 54 Current = 92 95 98 %FLA = 57 59 60.
As you can see with enough load the circuit runs fine, what I cannot understand is why does circuit number one run "perfectly" all year round and cope with the variations in load? Could it be the way that the evaporator is designed?
Anyone else had the same?
Cheers :cool:
I just had to get out of the sun for a couple of minutes as my client is going to wonder why my face is tanned and not the back of my neck!
I have a site with the above chiller, during the winter or prolonged periods of low demand, circuit number two fails on low oil pressure/flow, I can understand why as the compressor runs unloaded for extended periods of time, I left the circuit locked out on the control panel, I pumped the circuit down today and then ran it and monitored it carefully;
Sat. Suction = 4 Sat. Condensing = 39 SH = 5 SC = 6 Oil Pressure = 763 Kpa Oil Temp. = 54 Current = 92 95 98 %FLA = 57 59 60.
As you can see with enough load the circuit runs fine, what I cannot understand is why does circuit number one run "perfectly" all year round and cope with the variations in load? Could it be the way that the evaporator is designed?
Anyone else had the same?
Cheers :cool: