Watts Aerco Benchmark 5000 User manual

Heating and Hot Water Solutions
AERCO International, Inc. • 100 Oritani Drive • Blauvelt, NY 10913
USA: T: [phone] • Toll Free: [phone] • AERCO.com
Technical Support • [phone] • Mon-Fri, 8 am - 5 pm EST
© 2020 AERCO
Reference Manual
Benchmark®Boilers with
Edge [i] Controller
Natural Gas, Propane Gas and Dual Fuel
Modulating & Condensing Boilers
Models 750 through 6000
Other documents for this product include:
OMM-0144, GF-217 Installation and Startup Manual
OMM-0145, GF-218 Operation-Service Manual
TAG-0019, GF-2070 Boiler Application Guide
TAG-0022, GF-2050 Vent-Combustion Air Guide
TAG-0047, GF-2030 Benchmark Gas Guide
TAG-0048, GF-2060 Benchmark Power Guide
Applies to serial numbers:
G-20-0100 and above –BMK 750 –5000N
N-20-0050 and above –BMK 5000 & 6000
OMM-0146_A • GF-219 • 5/25/2020
Disclaimer
The information contained in this manual is subject to change without notice
from AERCO International, Inc. AERCO makes no warranty of any kind with
respect to this material, including, but not limited to, implied warranties of
merchantability and fitness for a particular application. AERCO International is
not liable for errors appearing in this manual, not for incidental or
consequential damages occurring in connection with the furnishing,
performance, or use of these materials.

Benchmark with Edge [I] Controller: Reference Manual
CONTENTS
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Table of Contents
TABLE OF CONTENTS...........................................................................................2
SECTION 1: SAFETY PRECAUTIONS ...................................................................3
1.1 WARNINGS & CAUTIONS .....................................................................................................................3
1.2 EMERGENCY SHUTDOWN...................................................................................................................4
1.3 PROLONGED SHUTDOWN...................................................................................................................4
SECTION 2: BENCHMARK 750 & 1000 PART LIST...............................................5
SECTION 3: BENCHMARK 1500 & 2000 PART LIST...........................................15
SECTION 4: BENCHMARK 2500 & 3000 PART LIST...........................................27
SECTION 5: BENCHMARK 4000 & 5000N PART LIST ........................................45
SECTION 6: BENCHMARK 5000 & 6000 PART LIST...........................................59
SECTION 7: SENSOR RESISTANCE CHART........................................................75

Benchmark with Edge [I] Controller: Reference Manual
SECTION 1: SAFETY PRECAUTIONS
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SECTION 1: SAFETY PRECAUTIONS
1.1 WARNINGS & CAUTIONS
Installers and operating personnel MUST, at all times, observe all safety regulations. The
following warnings and cautions are general and must be given the same attention as specific
precautions included in these instructions. In addition to all the requirements included in this
AERCO Instruction Manual, the installation of units MUST conform with local building codes, or,
in the absence of local codes, ANSI Z223.1 (National Fuel Gas Code Publication No. NFPA-54)
for gas-fired boilers and ANSI/NFPASB for LP gas-fired boilers. Where applicable, the equipment
shall be installed in accordance with the current Installation Code for GasBurning Appliances and
Equipment, CSA B149.1, and applicable Provincial regulations for the class; which should be
carefully followed in all cases. Authorities having jurisdiction should be consulted before
installations are made.
IMPORTANT!
This Instruction Manual is an integral part of the product and must be maintained in legible
condition. It must be given to the user by the installer and kept in a safe place for future reference.
WARNING!
•Do not use matches, candles, flames, or other sources of ignition to check for gas leaks.
•Fluids under pressure may cause injury to personnel or damage to equipment when released.
Be sure to shut off all incoming and outgoing water shutoff valves. Carefully decrease all
trapped pressures to zero before performing maintenance.
•Before attempting to perform any maintenance onthe unit, shut off all gas and electrical inputs
to the unit.
•The exhaust vent pipe of the unit operates under a positive pressure and therefore must be
completely sealed to prevent leakage of combustion products into living spaces.
•Electrical voltages up to 120 VAC (BMK750 –2000), 208 or 480 VAC (BMK2500 –
BMK3000), 480 VAC (BMK4000 & 5000N), or 208, 480 or 575 VAC (BMK5000 & 6000) and
24 volts AC may be used in this equipment. On international units, the voltage can be 220V
to 240V single phase. Therefore the cover on the unit’s power panel (located behind the unit’s
front panel) must be installed at all times, except during maintenance and servicing.
•A single-pole switch for single phase units, or three-pole switch for three phase units, must be
installed on the electrical supply line external to the unit. The switch must be installed in an
easily accessible position to quickly and safely disconnect electrical service. Do not affix
switch to unit sheet metal enclosures.
CAUTION!
•Many soaps used for gas pipe leak testing are corrosive to metals. The piping must be rinsed
thoroughly with clean water after leak checks have been completed.
•DO NOT use this boiler if any part has been under water. Call a qualified service technician
to inspect and replace any part that has been under water.

Benchmark with Edge [I] Controller: Reference Manual
SECTION 1: SAFETY PRECAUTIONS
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1.2 EMERGENCY SHUTDOWN
If overheating occurs or the gas supply fails to shut off, close the manual gas shutoff valve (Figure
1-1) located external to the unit.
NOTE:
The Installer must identify and indicate the location of the emergencyshutdown manual gas valve
to operating personnel.
Figure 1-1: Manual Gas Shutoff Valve
In addition, to ensure safety an emergency shutdown procedure that addresses the following
points should be designed and implement at the site:
•For automatically operated unattended boilers located in a boiler room, provide a manually
operated remote shutdown switch or circuit breaker located just inside or outside each boiler
room door. Design the system so activation of the emergency shutdown switch or circuit
breaker will immediately shut off the fuel supply to the unit(s).
•For automatically operated unattended boilers in a location other than a boiler room, provide a
manually operated remote shutdown switch or circuit breaker marked for easy identification at a
location readily accessible in the event of boiler mis-operation.
•Design the system so activation of the emergency shutdown switch or circuit breaker will
immediately shut off the fuel.
•For boilers monitored and/or operated from a continuously occupied control room, provide an
emergency shutdown switch in the control room that is hard-wired to immediately shut off the
fuel upon activation.
1.3 PROLONGED SHUTDOWN
If there is an emergency, turn off the electrical power supply to the AERCO boiler and close the
manual gas valve located upstream from the unit. The installer must identify the emergency shut-
off device.
If the unit is being shut down for an extended period of time, such as a year or more, complete
the instructions in Section 8.12: Shutting Boiler Down For Extended Period in the Benchmark
750-6000 with Edge [i] Operation-Maintenance Manual (OMM-0145, GF-218).
When returning a unit to service after a prolonged shutdown, it is recommended that the
instructions in Section 4: Initial Startup Procedures and Section 5: Safety Device Testing of the
Benchmark 750-6000 with Edge [i] Operation-Maintenance Manual (OMM-0145, GF-218)
be performed to verify that all system-operating parameters are correct. (This page intentionally
blank)
VALVE
OPEN
VALVE
CLOSED

Benchmark with Edge [I] Controller: Reference Manual
SECTION 2: BENCHMARK 750 & 1000 PART LIST
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SECTION 2: BENCHMARK 750 & 1000 PART LIST
Item #
Qty
Part #
Description
EXHAUST MANIFOLD
1
1
92094
Boiler Drain Valve: 3/4 “
2
1
43086
Exhaust Manifold
3
1
84045
Exhaust Manifold Seal
4
2
9-22
Pipe Plug
HEAT EXCHANGER
5
1
58179-1
BMK 750 Heat Exchanger
58179-2
BMK 1000 Heat Exchanger
6
1
80080
Insulation: Shell
7
1
123692
Plug, 1-1/2” NPT
CONTROLS
8
2
123449
Temperature Sensor
9
1
93360
3/4“ Plug, NPT
10
1
61030
Temperature Sensor
11
1
58132 
Thermowell
12
1
69126 
Low Water Cutoff
Replacement Kit and/or Catalog number
UPPER LEFT-REAR VIEW
LOWER LEFT SIDE VIEW
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 750 & 1000 with Edge [i] Part List
Benchmark 750 –29502-TAB rev A 10/05/2019
Benchmark 1000 –29504-TAB rev A 10/24/2019
Sheet 1 of 5
LOWER RIGHT SIDE VIEW
8
2
1
3
5
7
8
6
4
4
9
10
12
11

Benchmark with Edge [I] Controller: Reference Manual
SECTION 2: BENCHMARK 750 & 1000 PART LIST
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Item #
Qty
Part #
Description
BURNER-BLOWER (See full diagram below)
14
1
24276-1
BMK 750 Burner-Blower Assy.
24276
BMK 1000 Burner-Blower Assy.
24276-2
BMK 750/1000 Propane Units
15
1
60011-4
Blower Proof Switch
16
1
81155
Pipe Flange gasket (gas train to A/F Valve)
17
1
61002-5
Blocked Inlet Switch, -4.5” W.C.
18
1
59139
Air Filter, 6” x 4.5” LG
19
1
65085
Ignition Transformer
20
1
97087-20
Flex Gas Tube 20" (50.8 cm)
GAS TRAIN ASSEMBLIES (See full diagrams below)
21
1
22140-1
BMK 750 & 1000 FM Gas Train
22140-2
BMK 750 & 1000 DBB Gas Train
22140-3-1
BMK 750 Propane Gas Train
22140-3-2
BMK 1000 Propane Gas Train
CONTROLS
22
1
24356-1 
Flame Rod
23
1
61026
O2Sensor
24
1
58023 
Ignitor-Injector
25
1
123863
Valve: Ball 1/8" NPT
26
1
59178
Vent: Air 1/8 NPT
27
1
58089 
Staged Ignition Assy.
28
1
58061 
Blower, 8.9” AMETEK
29
1
24367-1 
Air/Fuel Valve Assy., BMK 1000
24367-2 
Air/Fuel Valve Assy., BMK 750
24367-3 
Air/Fuel Valve Assy., BMK 750/1000 Propane
Replacement Kit and/or Catalog number
REAR VIEW
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 750 & 1000 with Edge [i] Part List
Benchmark 750 –29502-TAB rev A 10/05/2019
Benchmark 1000 –29504-TAB rev A 10/24/2019
Sheet 2 of 5
15
18
21
14
17
19
20
16
28
27
26
23
3
22
24
25
29
TOP-REAR VIEW

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SECTION 2: BENCHMARK 750 & 1000 PART LIST
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Enclosure Panels
Item #
Qty
Part #
Description
1
1
37154
Cover Assembly
2
1
25087
Front Frame Assembly
3
1
37155
Left -Rear Panel
4
1
37156
Right -Rear Panel
5
1
39217
Air Inlet Adapter 6”
6
2
59179
Handle, Concealed Pull
7
1
25085-3
Front Panel Assembly
8
2
59133
Latch, Compression
9
1
59174
Lifting Bar (removed after installation)
LEFT-REAR VIEW
FRONT-RIGHT VIEW
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 750 & 1000 with Edge [i] Part List
Benchmark 750 –29502-TAB rev A 10/05/2019
Benchmark 1000 –29504-TAB rev A 10/24/2019
Sheet 3 of 5
5
1
2
3
4
7
6
8
6

Benchmark with Edge [I] Controller: Reference Manual
SECTION 2: BENCHMARK 750 & 1000 PART LIST
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Power Panel
Item #
Qty
Part #
Description
1
1
24477
Power Panel
2
5
69141
DIN Rail End Stop
3
1
65109
12V POWER SUPPLY
4
2
65118
Fuse Terminal: DIN Mounted
5
2
65121
Terminal Block, White
6
1
60037
2 Pole Circuit Breaker, 20A
7
3
65122
Terminal Ground Block: DIN Mounted
8
2
65120
Terminal Block, Black
9
1
65156
Amplifier, Flame Rod Signal
10
1
65162
24V Power Supply (Sequencing Valve)
11
1
65011
Transformer, 115/24V 100VA
12
1
69102-2
Pump Relay
Front View (Front panel removed)
13
1
69344-3
Edge [i] Control Panel
14
1
69172
I/O Board
15
1
123966
Over Temp Switch
16
1
64088
Temp Limit Controller
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 750 & 1000 with Edge [i] Part List
Benchmark 750 –29502-TAB rev A 10/05/2019
Benchmark 1000 –29504-TAB rev A 10/24/2019
Sheet 4 of 5
13
14
16
15
4
5
2
7
1
9
10
8
2
3
2
6
12
11

Benchmark with Edge [I] Controller: Reference Manual
SECTION 2: BENCHMARK 750 & 1000 PART LIST
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Benchmark 750/1000 Spare Parts Kit P/N 58037-TAB
Part
Number
Description
58037-1
30 PSI
Apollo
58037-2
50 PSI
Conbraco
58037-3
75 PSI
Apollo
58037-4
100 PSI
Watts
58037-5
150 PSI
Watts
58037-6
60 PSI
Watts
58037-7
125 PSI
Watts
58037-8
160 PSI
Kunkle
24286
6” Exhaust Kit
1
1
1
1
1
1
1
1
24441
Condensate Trap Assy.
1
1
1
1
1
1
1
1
92006-5
1” Ball Valve
1
1
1
1
1
1
1
1
123675-5
Tridicator
1
1
123675-6
Tridicator
1
1
1
1
123675-7
Tridicator
1
1
92014
Pressure Relief Valve
1
92015-13
Pressure Relief Valve
1
92015-15
Pressure Relief Valve
1
92015-16
Pressure Relief Valve
1
92015-20
Pressure Relief Valve
1
92015-484
Pressure Relief Valve
1
92015-361
Pressure Relief Valve
1
123659
Pressure Relief Valve
1
9-234
3/4” Close Nipple
1
1
1
1
1
1
1
Wiring Harnesses (not shown in figures below)
Part #
Description
63038
HARNESS: BLOWER
63097
HARNESS: SENSOR/COMM
63147
HARNESS: WIRING: GAS TRAIN
63182
HARNESS: SHELL
63083
HARNESS: 02 SENSOR
65104
CABLE: H.V. IGNITION
124327
HARNESS: INTERLOCK
Additional Benchmark 750/1000 Kits Available
Part #
Description
27086-1 
Actuator: SSOV w/o P.O.C. Switch FRU Kit
64048 
SSOV With Pressure Regulator FRU Kit
24367-1 
A/F Valve Assy FRU Kit BMK 1000
24367-2 
A/F Valve Assy FRU Kit BMK 750
58061 
Blower FRU Kit: AMETEK 8.9"
24356-1 
Flame Rod
58023 
Ignitor-Injector
Replacement Kit and/or Catalog number
Other Accessories / Parts (Optional)
Part #
Description
92084-6
Motorized Sequencing Valve
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 750 & 1000 with Edge [i] Part List
Benchmark 750 –29502-TAB rev A 10/05/2019
Benchmark 1000 –29504-TAB rev A 10/24/2019
Sheet 5 of 5

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SECTION 2: BENCHMARK 750 & 1000 PART LIST
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Benchmark 750/1000 FM Gas Train
P/N 22140-1 rev J –10/31/2019
Item
Qty
Part #
Description
Item
Qty
Part #
Description
1
1
95026
Flange 1.25" NPT 125#: Threaded
16
1
92006-5
Ball Valve: 1" NPT
3
1
92036
Valve: SSOV 1" NPT
24
1
61002-12
High Gas Pressure Switch 4.7" W.C.
4
1
64048 
Actuator: SSOV w/ Regulator
26
2
92077
Ball Valve, 1/4" NPT MXF Brass
6
2
12951-2
Bushing: Control Box
28
1
99017
Snubber: Pressure: 1/4"
7
1
61002-1
Low Pressure Switch: 2.6" W.C. Fall N.O.
30
1
97087-20
Flexible Gas Tube: 20" LG
13
2
9-22
Pipe Plug: 1/4" NPT: Steel
31
1
99015
Damping Orifice: SSOV
Replacement Kit and/or Catalog number
26
4
13
24
7
30
31
1
16
6
3
28
13
26

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Benchmark 750/1000 DBB Gas Train
P/N 22140-2 rev H –10/31/2019
Item
Qty
Part #
Description
Item
Qty
Part #
Description
1
1
95026
Flange 1.25" NPT 125#: Threaded
16
1
92006-5
Ball Valve: 1" NPT
3
2
92036
Valve: SSOV 1" NPT
18
1
27086-1 
Actuator: SSOV w/o P.O.C. Switch
4
1
64048 
Actuator: SSOV w/ Regulator
19
1
61002-12
High Gas Pressure Switch 4.7" W.C.
6
4
12951-2
Bushing: Control Box
21
1
GP-122774 
Vent Valve: 3/4" NPT
7
1
61002-1
Low Pressure Switch: 2.6" W.C. Fall N.O.
23
1
99017
Snubber: Pressure: 1/4"
8
1
99015
Damping Orifice: SSOV
33
3
92077
Ball Valve, 1/4" NPT MXF Brass
13
3
9-22
Pipe Plug: 1/4" NPT: STEEL
36
1
97087-20
Flexible Gas Tube: 20" " (50.8 cm) LG
Replacement Kit and/or Catalog number
19
4
33
33
7
6
13
6
23
3
1
36
18
21
16
13
8

Benchmark with Edge [I] Controller: Reference Manual
SECTION 2: BENCHMARK 750 & 1000 PART LIST
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BMK 750/1000 PROPANE Gas Train
P/N 22140-3 rev K –10/31/2019 Includes 22140-3-1 (BMK 750) and 22140-3-2 (BMK 1000)
Item
Qty
Part #
Description
Item
Qty
Part #
Description
1
1
95026
Flange: 1.25" NPT 125# Threaded
29
1
93474
Reducing Coupling 1 X 1/2"
2
1
92103
Valve: SSOV 1/2" NPT
31
1
99017
Snubber: Pressure: 1/4"
3
1
64048 
Actuator: SSOV w/ Regulator
32
1
97087-20
Flexible Gas Tube, 20"
11
1
93420
Union, 1/2" NPT Female Black Mi
33
1
99015
Damping Orifice: SSOV
12
2
9-22
Pipe Plug: 1/4" NPT: Steel
34
1
61002-12
High Gas Pressure Switch 4.7” W.C. BMK 750
23
2
12951-2
Bushing: Control Box
61002-17
High Gas Pressure Switch 10.5” W.C. BMK 1000
24
1
92006-3
Ball Valve, Full Port 1/2" NPT Brass
35
1
61002-8
Low Gas Pressure Switch 4.4” W.C. BMK 750
25
2
92077
Ball Valve, 1/4" NPT MXF Brass
61002-21
Low Gas Pressure Switch 7.5” W.C. BMK 1000
Replacement Kit and/or Catalog number
22140-3-1
BMK 750 Propane Gas Train
22140-3-2
BMK 1000 Propane Gas Train
1
32
24
11
29
25
12
3
23
31
2
33
35
34

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Benchmark 750/1000 Burner, Blower, Air/Fuel Valve Assy.
P/N 24276-TAB Rev L –02/25/2019
Item
Qty
Part #
Description
Item
Qty
Part #
Description
1
1
42140
Plate: Burner
14
1
24367-1 
A/F Valve Assy BMK 1000
2
1
81143
Gasket: Burner
24367-2 
A/F Valve Assy BMK 750
3
1
81064
Gasket: Blower
24298-2
A/F Valve Assy BMK 750/1000 Propane
4
1
59104
Observation Port
16
1
61002-5
Blocked Inlet Switch -4.5" W.C.
5
1
24277
Staged Ignition Assy
17
1
59171
Reflector: Sight Glass
6
1
24356-1 
Flame Rod
18
1
61026
Oxygen Sensor
7
1
88004
O-Ring #2-244 BUNA-N
22
1
58023 
Ignitor-Injector
8
1
81048
Flame Rod Gasket
23
1
9-21
Plug: Hex HD 1/8 NPT
10
1
60011-4
Switch Assy: Blower Proof
24
1
123449
Air Inlet Temperature Sensor
11
3
53033
Washer: Clocking
25
1
58061 
Blower FRU Kit: AMETEK 8.9"
12
1
46026
Burner
Replacement Kit and/or Catalog number
4
6
8
17
22
11
25
1
2
3
5
7
10
12
14
14
16
18
24
23

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(This page intentionally blank)

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SECTION 3: BENCHMARK 1500 & 2000 PART LIST
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SECTION 3: BENCHMARK 1500 & 2000 PART LIST
Item #
Qty
Part #
Description
EXHAUST MANIFOLD
1
1
39187
Exhaust Manifold
2
1
92094
Boiler Drain Valve: 3/4 “
3
1
81165
Exhaust Manifold Seal
4
2
9-22
Pipe Plug - Exhaust Manifold
HEAT EXCHANGER
5
1
58179-3 
BMK 1500 Heat Exchanger
58179-4 
BMK 2000 Heat Exchanger
6
2
123692
Plug, 1-1/2” NTP
7
1
80089
Shell Insulation
CONTROLS
8
2
123449
Temperature Sensor
9
1
58132 
Thermowell
10
1
61030
Temperature Sensor
11
1
69126 
Low Water Cutoff
Replacement Kit and/or Catalog number
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 –29506-TAB rev A 12/10/2019
Benchmark 2000 –29508-TAB rev A 12/16/2019
Sheet 1 of 5
UPPER LEFT-REAR VIEW
11
9
10
2
8
LOWER LEFT-REAR VIEW
1
2
3
5
4
8
8
6
7

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SECTION 3: BENCHMARK 1500 & 2000 PART LIST
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GAS TRAIN ASSEMBLIES (See full diagrams below)
12
1
22188
BMK 1500/2000 FM GAS TRAIN ASSY
22199
BMK 1500/2000 GAS TRAIN: DBB
22198
BMK 1500/2000 DUAL FUEL GAS TRAIN:
–22188-1 Natural Gas Gas Train
–22197 Propane Gas Train
22201
BMK 1500/2000 DBB Dual Fuel GAS TRAIN:
–22199-1 Natural Gas Gas Train
–22200 Propane Gas Train
BURNER-BLOWER (See full diagram below)
13
1
24378
BMK 1500 Burner-Blower Assy.
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 –DUAL FUEL ONLY
19
1
43091
Blower Plenum
20
1
124866
Staged Ignition Assy.
21
1
61026
O2Sensor
22
1
59104
Observation Port
23
1
59178
Air Vent, 1/8" NPT
24
1
123863
Valve: Ball, 1/8" NPT
25
1
24356-1 
Flame Rod and Gasket
Replacement Kit and/or Catalog number
LEFT-SIDE VIEW
19
20
22
25
23
21
24
16
13
12
15
18
14
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 –29506-TAB rev A 12/10/2019
Benchmark 2000 –29508-TAB rev A 12/16/2019
Sheet 2 of 5
TOP-REAR VIEW

Benchmark with Edge [I] Controller: Reference Manual
SECTION 3: BENCHMARK 1500 & 2000 PART LIST
OMM-0146_A • GF-219 •5/25/2020 Technical Support •[phone] •Mon-Fri, 8 am - 5 pm EST Page 17 of 76
Enclosure Panels
Item #
Qty
Part #
Description
1
1
30159
Top Panel: Front
2
1
30160
Top Panel: Back
3
1
37158
Back Panel: Left
4
1
37157
BACK PANEL: RIGHT
5
1
39218
6" Air Inlet Adapter, BMK 1500
39215
8" Air Inlet Adapter, BMK 2000
6
4
59133
Latch, Compression
7
1
25087
Front Frame Assembly
8
2
30155
Side Panel
9
2
59179
Handel, Concealed Pull
10
1
25085-3
Front Panel Assembly
11
1
65147
EBM 12VDC Axial Vent Fan
DUAL FUEL ONLY
5
6
7
8
1
2
3
4
10
9
6
11
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 –29506-TAB rev A 12/10/2019
Benchmark 2000 –29508-TAB rev A 12/16/2019
Sheet 3 of 5

Benchmark with Edge [I] Controller: Reference Manual
SECTION 3: BENCHMARK 1500 & 2000 PART LIST
OMM-0146_A • GF-219 •5/25/2020 Technical Support •[phone] •Mon-Fri, 8 am - 5 pm EST Page 18 of 76
Power Panel
Item #
Qty
Part #
Description
1
1
69274
Power Panel 110-220V, Single Phase
2
1
69172
I/O Board (for Edge [i])
3
1
123966
Adjustable Temp Limit Switch
4
1
64088
Digital Limit Control Temperature
5
1
63035-1
Fuel Selector Switch & Harness
–Dual Fuel Only
6
1
65162
24V Power Supply (Sequencing Valve)
7
1
65109
12V POWER SUPPLY
8
2
65118
Fuse Terminal: DIN Mounted
9
2
65120
Terminal Block, Black
10
3
65122
Terminal Ground Block: DIN Mounted
11
1
60037
2 Pole Circuit Breaker, 20A
12
3
69141
DIN Rail End Stop
13
2
65121
Terminal Block, White
14
1
69102-3
Relay
15
1
65156
Flame Rod Signal Amplifier
16
1
123552
Over Temp Switch, Manual Reset
Front View (Front panel removed)
17
1
69344-3
Edge [i] Control Panel
18
1
33170
Controller Mounting Plate
19
1
60011-4
Blower Proof Switch, BMK 1500
60011-2
Blower Proof Switch, BMK 2000
21
1
61002-5
Blocked Inlet Switch, -4.5” W.C.
9
8
6
11
2
7
POWER
PANEL
PARTIAL FRONT VIEW
3
4
1
5
10
13
12
12
12
16
20
17
18
19
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 –29506-TAB rev A 12/10/2019
Benchmark 2000 –29508-TAB rev A 12/16/2019
Sheet 4 of 5
15
14

Benchmark with Edge [I] Controller: Reference Manual
SECTION 3: BENCHMARK 1500 & 2000 PART LIST
OMM-0146_A • GF-219 •5/25/2020 Technical Support •[phone] •Mon-Fri, 8 am - 5 pm EST Page 19 of 76
Spare Parts Kits: BMK 1500 P/N 58088-TAB, BMK 2000 P/N 58087-TAB
Part #
Description
123540
External 2” Ball Valve
24441
Condensate Trap
See Table Below
Pressure Relief Valve
See Table Below
Pressure/Temp Gauge
BMK 1500 Spare Parts Kits P/N 58088-TAB
BMK 2000 Spare Parts Kits P/N 58087-TAB
Kit Number *
Description
Pressure
Relief
Valve
Pressure
/Temp
Gauge
Kit Number *
Description
Pressure
Relief Valve
Pressure/
Temp
Gauge
58088-C30
30 PSI (207 kPa) KIT (CONBRACO)
92023-1
123675-5
58087-1
30 PSI (207 kPa)
123620-W30
123675-5
58088-C50
50 PSI (345 kPa) KIT (CONBRACO)
92023-2
123675-5
58087-2
50 PSI (345 kPa)
123620-W50
123675-5
58088-C60
60 PSI (414 kPa) KIT (CONBRACO)
92023-3
123675-6
58087-3
75 PSI (517 kPa)
123620-W75
123675-6
58088-C75
75 PSI (517 kPa) KIT (CONBRACO)
92023-4
123675-6
58087-4
100 PSI (689 kPa)
123620-W100
123675-6
58088-C100
100 PSI (689 kPa) KIT (CONBRACO)
92023-5
123675-6
58087-5
150 PSI (1034 kPa)
123620-W150
123675-7
58088-C125
125 PSI (862 kPa) KIT (CONBRACO)
92023-6
123675-6
58087-6
60 PSI (414 kPa)
123620-W60
123675-6
58088-C150
150 PSI (1034 kPa) KIT (CONBRACO)
92023-7
123675-7
58087-7
125 PSI (862 kPa)
123620-W125
123675-6
58088-W30
30 PSI (207 kPa) KIT (WATTS)
92023-8
123675-5
58087-8
160 PSI (1103 kPa)
123620-K160
123675-7
58088-W50
50 PSI (345 kPa) KIT (WATTS)
92023-9
123675-5
58087-9
40 PSI (276 kPa)
92015-45
123675-5
58088-W60
60 PSI (414 kPa) KIT (WATTS)
92023-10
123675-6
58088-W75
75 PSI (517 kPa) KIT (WATTS)
92023-11
123675-6
58088-W100
100 PSI (689 kPa) KIT (WATTS)
92023-12
123675-6
58088-W125
125 PSI (862 kPa) KIT (WATTS)
92023-13
123675-6
58088-W150
150 PSI (1034 kPa) KIT (WATTS)
92023-14
123675-7
58088-K160
160 PSI (1103 kPa) KIT (KUNKLE)
92023-15
123675-7
*For Dual Fuel units add “DF” to the part number (i.e., 58088-C30-DF)
Other Accessories / Parts (Optional)
Part #
Description
92084-6
MOTORIZED SEQUENCING VALVE
Wiring Harnesses (not shown)
Part #
Description
63057
HARNESS: BLOWER POWER
63058
HARNESS: BLOWER SIGNAL
63083
HARNESS: O2 SENSOR
63090
HARNESS: TEMPERATURE LIMIT CONTROL
63103
HARNESS: SHELL
63104
HARNESS: I/O INTERLOCK
63105
HARNESS: I/O SENSOR/COMM
63111
HARNESS: CONTROL
63121
HARNESS: 12 V POWER SOURCE
63134
VENT FAN POWER WIRE –DUAL FUEL ONLY
63150
HARNESS: FLAME ROD
63156
HARNESS: POWER CABLE, 24 V SEQUENCE VALVE
65104
CABLE, H.V. IGNITION
Benchmark 1500/2000 Kits Available
Part #
Description
Part #
Description
27086-1
Actuator: SSOV w/o P.O.C. Switch
24311-3 
A/F Valve Assy BMK 1500/1500DF/2000DF
64048
SSOV With Pressure Regulator
24311-10 
A/F Valve Assy BMK 2000
58038 
Blower: AMETEK 12.3"
24356-1 
Flame Rod
58023 
Ignitor-Injector
Replacement Kit and/or Catalog number
AERCO International,
Inc. Blauvelt, NY
10913
Benchmark 1500 & 2000 with Edge [i] Part List
Benchmark 1500 –29506-TAB rev A 12/10/2019
Benchmark 2000 –29508-TAB rev A 12/16/2019
Sheet 5 of 5

Benchmark with Edge [I] Controller: Reference Manual
SECTION 3: BENCHMARK 1500 & 2000 PART LIST
OMM-0146_A • GF-219 •5/25/2020 Technical Support •[phone] •Mon-Fri, 8 am - 5 pm EST Page 20 of 76
Benchmark 1500 & 2000 Natural Gas FM Gas Train
P/N 22188 rev H –10/28/2019
Item
Qty
Part #
Description
Item
Qty
Part #
Description
1
1
123542
Flange 2" 125# 2" NPT
11
1
97087-20
Flex Gas Hose, 20"
4
1
64048 
Actuator, SSOV w/ Regulator
14
1
61002-11
Low Gas PressureSwitch 3.6" W.C.
5
2
12951-2
Bushing, Control Box
23
1
124150
Valve, SSOV 1-1/2" NPT
6
3
92077
Ball Valve, 1/4" NPT MXF Brass
26
1
93382
Cap 2'' NPT
7
4
9-22
Pipe Plug, 1/4" NPT, Steel
28
1
92006-7
Ball Valve, 1-1/2" NPT, Brass
8
1
99017
Snubber, Pressure, 1/4"
29
1
9-294
Union, 2" NPT 300#
9
1
61002-12
High Gas Pressure Switch 4.7" W.C.
Replacement Kit and/or Catalog number
1
11
28
26
4
29
5
7
8
9
14
23
6
7
7
6