Centravac Chiller limited on high current
Centravac Chiller limited on high current
(OP)
one of the trane centrifugal chiller capacity is limited on high current (99%). condenser pressure is at 8.5 psig. Entering water temperature (condenser side) is 77 deg F. Also, inlet guide vanes are open 85 %. I suspect that there is oil in the evaporator tubes. Sight glass is to the top (cant see the upper level) but the evaporator refrigirant temp is 38.7 deg F which seems normal. Based on the privious years trends, I expect the load to be about 90 %.
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Other running chiller with the same load is running at 90 % which is expected. Also, inlet guide vanes are open 67 %.
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Any suggestions????
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Other running chiller with the same load is running at 90 % which is expected. Also, inlet guide vanes are open 67 %.
.
Any suggestions????





RE: Centravac Chiller limited on high current
RE: Centravac Chiller limited on high current
RE: Centravac Chiller limited on high current
Here are the specs.
PARAMETERS
Evaporator Entering Water Temp-55.7 deg F
Evaporator Leaving Water Temp-45.9 deg F
Condenser Entering Water Temp-78.3 deg F
Condenser Leaving Water Temp-87.9 deg F
Saturated Evap Temp-37.9 deg F
Evap RFGT pressure- -7.8 psig
Saturated Con Temp-95.3 deg F
Cond Rfgt pressure-7.0 deg F
Inlet Guide Vane position %-84
Inlet Guide Vane position deg-75.6
Compressor phase current A-96.8 % (317 amps)
Compressor phase current B-100.5 % (329 amps)
Compressor phase current C-99.8 % (325 amps)
RE: Centravac Chiller limited on high current