Trane TRG-TRC011-EN manual Maintenance Considerations

period four

Maintenance Considerations

notes

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◆Check level of liquid refrigerant in purge condensing unit

◆Check vacuum pump oil

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◆Inspect purge condensing coil and clean as necessary

◆Change vacuum pump oil as needed

Figure 57

Most purges are fully automatic and generally require less maintenance than previous-generation manually operated purges. Purge-related maintenance procedures are simple.

νWeekly: With the purge unit operating, check the purge tank condensing activity by observing the liquid refrigerant level in the sump sight glass and checking the vacuum pump oil.

νSemiannually: Inspect the air-cooled condensing-unit coil and clean as needed. A fouled coil will reduce purge efficiency and capacity. Change the vacuum pump oil as needed.

As mentioned in Period Three, the purge can be used to indicate an air leak or depletion of the corrosion inhibitor. Leaks can be detected early by comparing pump-out activity over the last 24 hours to the 30-day average. The hermetic integrity of the absorption chiller is critical to its operation. Any leaks should be addressed immediately.

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