Pingo
20-04-2011, 09:40 PM
Hi
I hope someone can help me out on a problem with a Trane chiller controller,
The chiller is a ECGCE 205 model year 1991
(I am trying to keep it running for one more year)
The chiller has 4 scroll compressors controlled by a SCM controller.
Module A works compressors 1and 2
Module B works compressors 3and 4
On my visit to the site on Monday,compressors 1and 2 are working fine but module B is not operating the compressors, no faults are being shown on the display, checked all the gas pressures, Hp switches , overloads etc etc.
all are Ok, just awaiting a signal to start from the B module.
Temperature set point is 7c and so i allowed the temperature of the water to rise to 18c to try and start the 3and 4 compressors from Module B.
But this is not doing the trick, only module A operates and runs compressors 1and 2
On the B module the Green LED light is on for the LP switch. which is the normal indication for the LP switch and show it made.
Does anyone have any service and commissioning information for the controller ? ( I have the Installation/operation/maintenance manual for the SCM)
Trane want over £3K for Module A and £2K for module B so i would like to try and repair it and save the customer a lot of money before the main project of replacing the chiller
regards Pingo
I hope someone can help me out on a problem with a Trane chiller controller,
The chiller is a ECGCE 205 model year 1991
(I am trying to keep it running for one more year)
The chiller has 4 scroll compressors controlled by a SCM controller.
Module A works compressors 1and 2
Module B works compressors 3and 4
On my visit to the site on Monday,compressors 1and 2 are working fine but module B is not operating the compressors, no faults are being shown on the display, checked all the gas pressures, Hp switches , overloads etc etc.
all are Ok, just awaiting a signal to start from the B module.
Temperature set point is 7c and so i allowed the temperature of the water to rise to 18c to try and start the 3and 4 compressors from Module B.
But this is not doing the trick, only module A operates and runs compressors 1and 2
On the B module the Green LED light is on for the LP switch. which is the normal indication for the LP switch and show it made.
Does anyone have any service and commissioning information for the controller ? ( I have the Installation/operation/maintenance manual for the SCM)
Trane want over £3K for Module A and £2K for module B so i would like to try and repair it and save the customer a lot of money before the main project of replacing the chiller
regards Pingo