Boiler Audit

Job scope for the boiler audit should include the following items:

MONTHLY SERVICE:
1. Test combustion for five points on the base fuel on which the boiler is operating.
Backup fuel may be the base fuel for at least two of the twelve monthly tests. Necessary
adjustments to improve fuel air ratios should be made, with readings to record efficiency and
other data both before and after the adjustments are made.
2. Test flame failure control.
3. Test low water control cutoff and auxiliary using the slow drain method.
4. Test high pressure cutoff to be done by customer's operator.
5. Test gas pressure switches at high pressure cutoff and at low pressure cutoff.
6. Test combustion air proving switch.
7. Test auxiliary contacts on motor starter.
8. Test atomizing medium proving switch.
9. Test high and low fire proving switches.
10. Test high and low oil temperature.
11. Test low oil pressure switch.
12. Remove pilot assembly, clean and adjust.
13. Complete service report with recommendations.

ANNUAL SERVICE:
1. Open and washout boiler water-side.
2. Brush tubes and/or clean fireside surfaces.
3. Replace all gaskets on water-side and fireside.
4. Repack feed water pumps.
5. Clean strainers.
6. Replace gauge glass of DA or makeup tank.
7. Test float switches on make-up tank.
8. Shop rebuilt and testing of safety relief valves.