The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

The Turbo Air 3000 Centrifugal Compressor Operator’s Manual
Oil Cooler Cleaning
Deterioration in oil cooler performance may be an indication that it is time to remove the mineral scale
buildup within the oil cooler tubes. When that occurs, clean the tubes as follows:
1. Shut down the compressor, lockout the main motor starter and close the system block valve.
2. Turn off the water and disconnect the two water pipes.
3. Remove the lower plug on the rear header and allow any remaining coolant to drain from the
cooler before replacing the plug.
4. Remove the front and rear headers to expose the tubes. Retain the gaskets.
5. Using a 1/8” (3 mm) rod, probe the tubes to check for blockage. (Since this is a straight tube cooler,
any blockages that are loosened can be safely and easily pushed through and out the end.)
6. When rod cleaning is complete, flush the tubes thoroughly with water.
7. Replace the water headers (using the original gaskets) and then fill all the cooler tubes with a
descaling agent such as Rydlyme.
5—22
WARNING: Be certain to follow the manufacturer’s instructions for safe handling and
disposal of such products. Failure to do so could cause personal injury and/or create a
biohazard.
8. Allow the descaling agent to remain in the tubes for 1 hour.
CAUTION:
Do not allow the descaling agent to remain in the tubes for more than 1 hour. Failure to
follow these instructions will cause component damage.
9. Remove the front and rear headers to again expose the tubes.
10. Allow the descaling agent to completely drain from the tubes, and then flush out the tubes thoroughly
with water.
11. Reassemble the headers, this time using new replacement gaskets.
12. Recharge the cooler, being sure to loosen the vent plug on the rear header to prevent air entrapment
in the cooler.