Replacing Cooling System Components; Replacing The Compressor Start Relay And Overload Protector; Replacing The Fan Motor; Replacing The Hot Gas Valve And Filter Dryer - EdgeStar IB450SSP Service Manual

Replacing Cooling System Components

NOTE: Please see the cooling system diagram. Please check for refrigerant leaks after any service
is performed to the cooling system.

Replacing the compressor start relay and overload protector.


To replace the relay and overload protector, remove the rear panel, locate the compressor, take
the clip off the cover to relay and overload protector, open the cover, replace the relay and
overload protected.

Reverse the above steps to reassemble.

To replace the compressor, remove the rear panel, and left side, and locate the compressor.

Add low side access valve, locate and repair leak, replace dryer, add nitrogen, pull vacuum and
weigh in the refrigerant charge indicated on the data plate.

Reverse the above steps to reassemble.

Replacing the fan motor.


Remove the top cover, rear and left sides.

Locate the fan motor, unplug the lines connected to the fan motor, loosen the screws of the
bracket holding fan motor to the base. Replace with new fan.

Reverse the above steps to reassemble.

Replacing the hot gas valve and filter dryer.


Remove the rear, top cover and the left side.

Locate the dryer and hot gas valve, add low side access valve, recover refrigerant, replace dryer
and valve, add nitrogen, pull vacuum and weigh in the refrigerant charge indicated on the data
plate.

Reverse the above steps to reassemble.
19