Safety Device Testing; Burner Inspection; Condensate Drain Trap - Watts AERCO Edge CFR 3000 Operator's And Service Manual

SECTION 8 MAINTENANCE

8.4 Safety Device Testing

Systematic and thorough tests of the operating and safety devices should be performed to ensure that
they are operating as designed. Certain code requirements, such as ASME CSD-1, require that these
tests be performed on a scheduled basis. Test schedules must conform to local jurisdictions. The results
of the tests should be recorded in a logbook.
See Section 5: Safety Device Testing for a description and instructions for performing these tests.

8.5 Burner Inspection

The burner assembly should be inspected every 24 months to ensure that all components are intact and
functioning as designed. This requires the replacement of one or two burner gaskets (depending on the
model), and blower and gas train O-Rings, which are included in all 24 Month Maintenance Kits. If the
burner is not fully intact, it must be replaced as soon as possible.
The burner assembly is located at the top of the unit's heat exchanger. The burner assembly may be hot.
Therefore, allow the unit to cool sufficiently before removing the burner assembly.
Burner inspection parts are included all 24 Month Maintenance Kits. Instructions are in the Technical
Instruction Documents (TIDs) included with the kits:
Figure 8-2: Burner Assembly Mounting Details

8.6 Condensate Drain Trap

All CFR boilers contain a condensate trap (P/N 24789), located external to the unit, attached to the
exhaust manifold's drain at the rear of the unit.
This trap must be inspected for leaks and blockages, cleaned to ensure that the float is free to move,
and condensate flows normally, and the O-Ring (P/N 84017 included in all 24 Month Maintenance Kits)
replaced if it is worn or damaged. In addition, you must ensure the vent (under the removable cover) is
free and clear of obstructions.
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