My customer has a 50 ton Trane Compressor
M/N: CRHR500C-4HAT, 460v r22 50ton.
He would like to replace the crankcase heater on this unit.
That would be a part #HTR-1566.
This unit appears to have no immersion well. The heater screws right into the crankcase.
He is concerned about contaminating his system.
Can he just quickly unscrew the old & screw in the new below the oil level & maintain the integrity of the system? (De-energized,of course.)
Does He have to evacuate the whole system to do this?
Are any Exterior Heaters available for a compressor this size?