Aerco Benchmark BMK 750 User Manual page 45

Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
SECTION 4 – MAINTENANCE
BMK 750/1000 Burner Inspection Instructions
REAR
BURNER PLATE
3/16"–16 HEX NUTS (8)
IGNITER-INJECTOR
STAGED IGNITION
ASSEMBLY
1/2" BOLTS & NUTS (4)
(GAS TRAIN-to-A/F
VALVE)
Figure 4-4a: BMK 750/1000 Burner Assembly Mounting Details (Overhead View)
BLOWER PROOF SWITCH
BLOWER
O2 SENSOR
FLAME DETECTOR
BURNER GASKET
BURNER PLATE
BURNER
Figure 4-4b: BMK 750/1000 Burner Assembly (Exploded View)
8. Next, loosen and remove the igniter-injector from the burner plate using a 1" open-end
wrench.
OMM-0128_0C
GF-206-K
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
FRONT
BLOWER
BLOWER PROOF
SWITCH
BLOCKED INLET
SWITCH
AIR FILTER
BLOCKED INLET
SWITCH
AIR/FUEL VALVE
STAGED IGNITION
IGNITER/INJECTOR
Page 45 of 146
11/29/2017