Appendix G: Part List Drawings - Watts Aerco BENCHMARK 750 User Manual
Gas-fired boilers
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Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
Appendix G: PART LIST DRAWINGS
Item #
Qty
Part #
EXHAUST MANIFOLD
1
1
43086
2
1
84045
3
6
9-22
GAS TRAIN
4
1
22286
5
1
99017
6
1
81155
7
1
61002-1
9
1
61002-12
10
1
92077
BURNER, AIR/FUEL VALVE
1
24276-1
11
24276
24367-1
12
1
24367-2
13
1
24277
14
1
81143
15
1
59171
16
1
59104
28317
17
1
28249
HOSES & INSULATION
18
1
97087-20
19
1
80080
BLOWER
20
1
58061
22
1
81064
23
1
88004
24
1
24356-1
25
1
61026
26
1
58023
27
1
59139
CONTROLS
28
1
123966
29
1
123552
30
1
60011-4
Not shown on drawing
:AERCO
International, Inc.
Blauvelt, NY 10913
OMM-0119_0A
GF-130-I
APPENDIX G – PART LIST DRAWINGS
Benchmark 750 - 1000 Part List
Description
MANIFOLD: EXHAUST
MANIFOLD: SEAL
PIPE PLUG: 1/4" NPT: STEEL
BMK 750 /1000 GAS TRAIN ASSY
SNUBBER: PRESSURE: 1/4"
GASKET: 1 1/4" PIPE FLANGE
PRESSURE SWITCH: 2.6" W.C. FALL
N.O.
HIGH GAS PRESSURE SWITCH 4.7" W.C.
1/4" NPT MXF BRASS BALL VALVE
BURNER ASSEMBLY: BMK 750
BURNER ASSEMBLY: BMK 1000
BMK 1000 A/F Valve FRU kit
BMK 750 A/F Valve FRU kit
STAGED IGNITION ASSY
BURNER GASKET
REFLECTOR: SIGHT GLASS
OBSERVATION PORT
BMK 750 HEAT EXCHANGER
BMK 1000 HEAT EXCHANGER
FLEX GAS TUBE 20" (50.8 cm)
SHELL INSULATION
BLOWER ASSEMBLY REPLACEMENT KIT
BLOWER OUTLET GASKET
O-RING #2-244 BUNA-N
FLAME DETECTOR KIT
LEAN OXYGEN SENSOR
IGNITER-INJECTOR REPLACEMENT KIT
AIR FILTER: 6" X 4.5 (11.4 cm) LG
SWITCH: OVER TEMP-AUTO RESET
SWITCH: OVER TEMP-MANUAL RESET
BMK 750 BLOWER PROOF SWITCH
Benchmark 750-1000 Part List
Whole Boiler: BMK 750 – 28321-CHI
BMK 1000 – 28253-CHI
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Item #
Qty
Part #
CONTROLS (Continued)
31
1
61002-5
32
1
65085
34
2
60026
35
1
64081
36
1
65011
37
1
65109
38
1
69145
40
2
65121
41
3
65122
42
2
65118
43
1
69177
44
1
69005
45
1
61034
46
1
63063
47
2
124512
48
1
123449
49
1
58132
50
1
33137
51
1
181197
52
1
69151
53
2
124326
54
2
51006
55
1
63097
56
1
63090
57
1
124327
58
1
63182
59
1
63147
60
1
65156
61
1
61030
62
1
61024
63
1
65104
64
1
63083
65
1
63085
66
1
24468
67
1
69038
68
1
GP-122774
69
1
65162
Description
BLOCKED INLET SWITCH -4.5 W.C.
IGNITION TRANSFORMER
CIRCUIT BREAKER 2 POLE 20A
ECU O2 SENSOR
TRANSFORMER 115V/24V 100VA
12V POWER SUPPLY
RAIL: DIN: 8 1/2"(21.6 cm) LG
TERMINAL BLOCK: DIN MOUNTED: WHT
TERMINAL GROUND BLOCK: DIN
MOUNTED
FUSE TERMINAL: DIN MOUNTED
LIMIT CONTROL TEMP CONTROLLER
ACTUATOR, SSOV w PRESSURE REG
SPARK MONITOR
BENCHMARK PUMP RELAY
FUSE: 4 AMP
SENSOR: TEMPERATURE
THERMOWELL
ELECTRICAL PANEL
CONTROL BOX: C-MORE
PCB ASSY
RELAY: OMRON MY2DC24[S]
CLIP: HOLD-DOWN
I/O SENSOR/COMM HARNESS
TEMP LIM CONT PWR HARNESS
HARNESS: INTERLOCK HARNESS
SHELL HARNESS
HARNESS: WIRING: GAS TRAIN
FLAME ROD SIGNAL AMPLIFIER
OUTLET TEMP SENSOR
AIR INLET TEMPERATURE SENSOR
CABLE: H.V. IGNITION
HARNESS: O2 SENSOR
CONTROL HARNESS: BMK 1000 & 750
2000VA TRANSFORMER ASSY
ACTUATOR, SSOV w/o P.O.C. SWITCH
VALVE, VENT 3/4"
24V POWER SUPPLY (SEQUENCING
ISOLATION VALVE)
03/11/2016
Sheet 1 of 6
Page 151 of 170
11/03/2016
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