Hi,

Does anyone have access to a Trane service manual ?

Twin Helirotor compressors. Lead compressor tripping (every few days) on high oil temeperature. Ran the machine today for most of the day and no problems have reoccurred, exept an alarm for the condenser fan variable speed drive. Setpoint for entering water temp was set at 6 degrees C, thought this was too low as a few evaporator temp trips had been happening so increased to 9 degrees (no glycol in water) and the oil temp seemed to stabilise at about 70 degrees C.

Even better if anyone else has come across this and has an idea. Using R134a refrigerant.

Thanks