Chapter 5: Maintenance
5.3.3.2 Standard Cleanout Procedure
1.Turn off power to unit at the main power disconnect switch.
2.Remove the old compressor and install the new compressor.
3.Remove the liquid line drier and install an oversized liquid line
4.Evacuate the system according to standard procedures. Normally, this will include the use of a
5.Recharge the system.
6.Turn on the power at the main power disconnect switch and start the system.
5.3.3.3 Burn-Out/Acidic Cleanup Procedure
1.These systems should be cleaned using the suction line
2.Turn off power to the unit at the main power disconnect switch.
3.Remove the
4.Install a suction line
5.Remove the liquid line drier and install an oversized liquid line
6.Check the expansion valve, sight glass, and other controls to see if cleaning or replacement is required.
7.Evacuate the system according to standard procedures. Normally this will include the use of a
8.Recharge the system through the access valve on the suction line
9.Turn on power at the main power disconnect switch and start the system.
10.A permanently installed suction line
11.In 24 hours, take an oil sample. Observe the color and test for acidity. If the oil is dirty or acidic, replace the suction line
12.In two weeks, examine oil to determine if another suction line
5.3.4 Component Replacement
Check all electrical connections to ensure they are tight and properly made. Check all circuit breakers, contactors, and wiring. The contactors should be examined and replaced if contacts are worn or pitted.
1.Turn off power to the unit at the main power disconnect switch.
2.Remove the old component and install the new one.
3.Turn on power at the main power disconnect switch and start the system.
5.3.4.1 Fan Replacement
The EC Fans are located behind the front access panel. The panel must be removed to access the fans. The fans are equipped with quick connect fittings for the power and control cables to make
Remove the four
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