Watts Aerco Benchmark 5000 Reference Manual page 16

Benchmark with Edge [I] Controller: Reference Manual
SECTION 3: BENCHMARK 1500 & 2000 PART LIST
GAS TRAIN ASSEMBLIES
(See
22188 BMK 1500/2000 FM GAS TRAIN ASSY
22199 BMK 1500/2000 GAS TRAIN: DBB
BMK 1500/2000 DUAL FUEL GAS TRAIN:
–
22198
12 1
–
BMK 1500/2000 DBB Dual Fuel GAS TRAIN:
–
22201
–
BURNER-BLOWER full diagram below)
(See
24378 BMK 1500 Burner-Blower Assy.
13 1 24378-1 BMK 2000 Burner-Blower Assy.
24378-2 BMK 2000 DF Burner-Blower Assy.
14 1 65085 Ignition Transformer
15 1 88003 O-Ring, #2-339 (gas train to A/F Valve)
16 1 59138 Air Filter, 6"
17 1 97087-72 Flex Gas Tube 72" (1.83 m) (not shown)
CONTROLS
18 1 66035 EBM 12V Fan
19 1 43091 Blower Plenum
20 1 124866 Staged Ignition Assy.
21 1 61026 O
2
22 1 59104 Observation Port
23 1 59178 Air Vent, 1/8" NPT
24 1 123863 Valve: Ball, 1/8" NPT
24356-1 
25 1 Flame Rod and Gasket

Replacement Kit and/or Catalog number
19
20
21
AERCO International,
Inc. Blauvelt, NY
10913
OMM-0146_A • GF-219 • 5/25/2020
full diagrams below)
22188-1 Natural Gas Gas Train
22197 Propane Gas Train
22199-1 Natural Gas Gas Train
22200 Propane Gas Train
– DUAL FUEL ONLY
Sensor
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 – 29506-TAB rev A
Benchmark 2000 – 29508-TAB rev A
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
LEFT-SIDE VIEW
22
TOP-REAR VIEW
12/10/2019
12/16/2019
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Sheet 2 of 5
Page 16 of 76