
Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE
OMM-0122_D
•
GF-206
•
5/9/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 41 of 164
Figure 4-1b: BMK 1500/2000 Burner Assembly (Removed from Boiler)
Figure 4-1c: BMK 2500/3000 Burner Assembly (Removed from Boiler)
BLOWER
BLOWER
PLENUM
IGNITER-
INJECTOR
ASSEMBLY
FLAME
DETECTOR
BURNER
PLENUM FLANGE/
BURNER TOP PLATE
FLAME
OBSERVATION
PORT
AIR/FUEL
VALVE
BLOCKED
INLET
SWITCH
LEAN O
2
SENSOR
A/F VALVE
PLENUM
BLOWER
BLOWER
PLENUM
IGNITOR-INJECTOR
ASSEMBLY
FLAME
DETECTOR
BURNER
BURNER
PLATE FLANGE
FLAME OBSERVATION PORT
AIR/FUEL
VALVE
BLOCKED
INLET
SWITCH
LEAN O
2
SENSOR
A/F VALVE
PLENUM