Aerco Benchmark BMK 750 User Manual page 39

Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
SECTION 4 – MAINTENANCE
IGNITER-
INJECTOR
ASSEMBLY
LEAN O SENSOR
2
PLENUM FLANGE/
BURNER TOP PLATE
BURNER
BLOWER
BLOWER
PLENUM
LEAN O SENSOR
2
BURNER
PLATE FLANGE
IGNITOR-INJECTOR
ASSEMBLY
BURNER
OMM-0128_0C
GF-206-K
BLOWER
BLOWER
PLENUM
Figure 4-1b: BMK 1500/2000 Burner Assembly
Figure 4-1c: BMK 2500/3000 Burner Assembly
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
BLOCKED
INLET
SWITCH
FLAME
DETECTOR
FLAME
OBSERVATION
PORT
BLOCKED
INLET
SWITCH
FLAME
DETECTOR
FLAME OBSERVATION PORT
Ph.: 800-526-0288
A/F VALVE
PLENUM
AIR/FUEL
VALVE
A/F VALVE
PLENUM
AIR/FUEL
VALVE
Page 39 of 146
11/29/2017