AERCO BMK 1500-2000 - Manual (Page 93)

Benchmark 1500 - 2000 Boilers
CHAPTER 7 – MAINTENANCE
OMM-0097_0D AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 93 of 188
GF-142
Ph.: 800-526-0288
Burner Assembly Inspection and Maintenance Procedure – Continued
Figure 7-4b: Burner Assembly Mounting Details
Figure 7-5: Bare Burner and Replacement Gaskets Location
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
81183 – UPPER RELEASE GASKET
81166 – MIDDLE BURNER GASKET
81186 – LOWER RELEASE GASKET
BARE
BURNER
INSTALLED
IN HEAT
EXCHANGER
ASSY.
IMPORTANT!
Use ALL THREE gaskets provided, even if there
is only one existing gasket being replaced.
NOTE
The LOWER RELEASE
GASKET (P/N 81186) features
four tabs around its periphery.