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TRG-TRC011-EN 49
period four
Maintenance Considerations
notes
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.
▲
◆ Verify proper operation
▲
◆ Inspect burner firing rate,
blower, linkage, and
safety controls
◆ Test run with alternate
fuel, if dual-fuel burner
Figure 58