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Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE
OMM-0122_D
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GF-206
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5/9/2019
Technical Support
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(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 50 of 164
BMK 1500-3000 Burner Inspection Instructions
Figure 4-5c: BMK 2500/3000 Burner Assembly Mounting Details
Figure 4-5d: BMK 2500/3000 Burner Assembly Mounting Details
5/16” x 1-3/4” BOLTS,
5/16” WASHERS &
NYLOCK NUTS (4 each)
BLOWER PLENUM
GAS TRAIN
AIR FILTER
A/F VALVE
PLENUM
BLOWER
BURNER
PLATE
3/8”-16
HEX NUTS
(8 each)
AIR/FUEL
VALVE FILTER
IGNITER-
INJECTOR
ASSEMBLY
1/2” NUTS
& BOLTS (4 each)
3/8”-16
HEX NUTS
(8 each)
5/16” x 1-3/4” BOLTS,
5/16” WASHERS &
NYLOCK NUTS
(4 each)
A/F VALVE
PLENUM
AIR
FILTER
AIR/FUEL
VALVE
GAS
TRAIN
BLOWER
PLENUM
GAS INLET
PIPE
BLOCKED INLET
SWITCH
BLOWER
PROOF
SWITCH
BLOWER
MANUAL
SHUT-OFF
VALVE