Watts Aerco Benchmark OMM-0117 Operation And Maintenance Manual page 49

Benchmark 5000-6000 Operation & Maintenance Manual
SECTION 4 – MAINTENANCE
BMK 5000/6000 Burner Inspection Instructions
18. Remove the Blower from the Burner by pulling outward. Be careful not to allow it to swing
and damage other equipment components. Refer to the exploded view in Figure 4-6.
19. Lower the Blower assembly down approximately 16" until it is clear of the Burner Flange.
20. Remove the Burner by pulling straight out.
21. Gently slide the Burner out of the boiler using care to avoid tearing the mesh burner fabric,
or cock the Burner to one side or the other.
22. Remove and replace the two (2) Burner Gaskets (see Figure 4-6) and clean the gasket
surface on the burner front plate.
23. To reassemble, begin with the Burner assembly and reinstall all the components in the
reverse order that they were removed. The Burner may have a nut installed at the base
position to keep the Burner level while installing the Blower (Figure 4-6).
24. Ensure that the Pilot Burner and Pilot Flame Detectors cutouts in the Blower Flange are
properly aligned with the Burner Front Plate.
BURNER FRONT PLATE
TURN-BUCKLE
BLOWER FLANGE
PILOT FLAME
DETECTORS
BLOWER
Figure 4-5a: Burner Assembly Mounting Details – Right-Front View
OMM-0118_B • GF-203 • 5/9/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
3/8-16 HEX NUTS
& WASHERS (8)
MAIN FLAME
DETECTOR
PILOT
BURNER
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