period four
Maintenance Considerations
notes
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◆Verify proper operation
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◆Inspect burner firing rate, blower, linkage, and safety controls
◆Test run with alternate fuel, if dual-fuel burner
Figure 58
The burner is the heart of a direct-fired absorption chiller. Correct operation is, therefore, necessary for optimum chiller performance. Daily checks should be made in accordance with the manufacturer’s recommendations. Each cooling season, the burner’s firing rate, blower, linkage, and safety controls should be checked to ensure proper operation. If a dual-fuel burner is being used, it should be periodically test run with the alternate fuel to ensure reliable operation.
Manufacturers of direct-fired absorption chillers provide detailed burner maintenance checklists, generally with maintenance requirements at 3-, 6-, and 12-month intervals. To ensure efficiency and increase longevity of both the burner and the chiller, consult manufacturers’ maintenance manuals and follow their instructions.
With indirect-fired absorption chillers, periodic inspection of the energy valve is recommended to check for leaks. Again, consult manufacturers’ maintenance manuals for specific recommendations.
