Watts AERCO Benchmark OMM-0121 Operation And Maintenance Manual page 41

Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE
IGNITER-
INJECTOR
ASSEMBLY
LEAN O SENSOR
2
PLENUM FLANGE/
BURNER TOP PLATE
BURNER
Figure 4-1b: BMK 1500/2000 Burner Assembly (Removed from Boiler)
BLOWER
BLOWER
PLENUM
LEAN O SENSOR
2
BURNER
PLATE FLANGE
IGNITOR-INJECTOR
ASSEMBLY
BURNER
Figure 4-1c: BMK 2500/3000 Burner Assembly (Removed from Boiler)
OMM-0122_D • GF-206 • 5/9/2019
BLOWER
BLOWER
PLENUM
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
BLOCKED
INLET
SWITCH
FLAME
DETECTOR
FLAME
OBSERVATION
PORT
BLOCKED
INLET
SWITCH
FLAME
DETECTOR
FLAME OBSERVATION PORT
A/F VALVE
PLENUM
AIR/FUEL
VALVE
A/F VALVE
PLENUM
AIR/FUEL
VALVE
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