Watts Aerco Benchmark 5000 Reference Manual page 46

Benchmark with Edge [I] Controller: Reference Manual
SECTION 5: BENCHMARK 4000 & 5000N PART LIST
Item # Qty Part #
CONTROLS (continued)
15 1 61056
16 1 59178
17 1 123863
69126 
18 1
61030
19 1
123449
20 1 64081
21 1 65085
BURNER-BLOWER ASSY
(See
58195-1 
22 1
23 1 97087-72
24 1 88003
25 1 88014
26 1 81215
27 1 81216
24311-11 
28 1

Replacement Kit and/or Catalog number
25 23
UPPER-RIGHT REAR VIEW
AERCO International,
Inc. Blauvelt, NY
10913
OMM-0146_A • GF-219 • 5/25/2020
Description
Temperature Sensor, Dual
Thermocouple, BMK5000N
Air Vent: 1/8 NPT
Valve: Ball 1/8" NPT
Low Water Cutoff
Temperature Sensor, BMK 4000
Temperature Sensor, BMK 5000N
ECU (for O Sensor, behind cover)
2
Ignition Transformer
full diagram 26017-TAB below)
Blower 480 V BMK 4000/5000N
Flex Gas Tube 72" (1.83 m)
O-Ring, #2-339
Air Filter, 6" X 12"
Blower/Plenum Gasket
A/F Valve–Blower Gasket
BMK 4000 A/F Valve Assy.
20
21
Benchmark 4000 & 5000N with Edge [i] Part List
BMK 4000 29465-TAB Rev A
BMK 5000N 29468-TAB rev A
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
HOT WATER OUTLET
15
19
18
2
25 24 28 27
LEFT SIDE VIEW
16 17
26 22
1/24/2020
Sheet 2 of 5
Page 46 of 76