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Electrical Power Design Guide
Benchmark
Models 750 through 6000
Other documents for this product include:
OMM-0127 BMK750K-3000K Installation-Startup KOREA
OMM-0128 BMK750K-3000K Operation- Maintenance KOREA
OMM-0136 BMK750-6000 Platinum-Edge Installation-Startup
OMM-0137 BMK750-6000 Platinum-Edge Operation-Service
OMM-0138 BMK750-6000 Platinum-Edge Reference Manual
TAG-0019 Benchmark Boiler Application Guide
TAG-0022 Benchmark Vent & Combustion Air Guide
TAG-0047 Benchmark Gas Guide
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.
• 5/16/2023
TAG-0048_Q
®
Boilers
Heating and Hot Water Solutions
AERCO International, Inc. • 100 Oritani Drive • Blauvelt, NY 10913
USA: T: (845) 580-8000 • Toll Free: (800) 526-0288 • AERCO.com
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
© 2023 AERCO
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Related Manuals for Watts AERCO Benchmark BMK750-1000 Domestic
Summary of Contents for Watts AERCO Benchmark BMK750-1000 Domestic
- Page 1 Electrical Power Design Guide ® Benchmark Boilers Models 750 through 6000 Other documents for this product include: OMM-0127 BMK750K-3000K Installation-Startup KOREA OMM-0128 BMK750K-3000K Operation- Maintenance KOREA OMM-0136 BMK750-6000 Platinum-Edge Installation-Startup OMM-0137 BMK750-6000 Platinum-Edge Operation-Service OMM-0138 BMK750-6000 Platinum-Edge Reference Manual TAG-0019 Benchmark Boiler Application Guide TAG-0022 Benchmark Vent &...
- Page 2 Benchmark Series Boilers Pre-Installation Electrical Power Guide 1. GENERAL Benchmark (BMK) Gas Fired Boilers are fully factory wired packaged units which require simple external power wiring as part of the installation (Figure 1). This technical guide is intended to help designers provide electrical power wiring (line voltage) to Benchmark units.
- Page 3 Benchmark Series Boilers Pre-Installation Electrical Power Guide FUSE TERMINAL 12V POWER SUPPLY BLOCKS BLOCKS POWER BREAKER FLAME ROD SIGNAL 24 VDC POWER TRANSFORMER AMPLIFIER SUPPLY Figure 2a: Power Box Components, BMK750 & 1000 – DOMESTIC TAG-0048_Q • 5/16/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 3 of 11...
- Page 4 Benchmark Series Boilers Pre-Installation Electrical Power Guide 12V POWER FUSE POWER TERMINAL SUPPLY BLOCKS BREAKER BLOCKS For INTERNATIONAL units, Molex is plugged into 220 V Transformer Harness 220 V Transformer Harness To 220 V TRANSFORMER 24 VDC POWER FLAME ROD SIGNAL TRANSFORMER SUPPLY AMPLIFIER...
- Page 5 Benchmark Series Boilers Pre-Installation Electrical Power Guide POWER TERMINAL FUSE BREAKER BLOCKS TRANSFORMER BLOCKS For INTERNATIONAL units, Molex is plugged into 220V Transformer Harness 220 V Transformer Harness FLAME ROD 24 VDC To 220V SIGNAL POWER POWER TRANSFORMER AMPLIFIER SUPPLY SUPPLY Figure 3b: Power Box Components, BMK1500 –...
- Page 6 Benchmark Series Boilers Pre-Installation Electrical Power Guide FUSE TERMINAL POWER TRANSFORMER BLOCKS BREAKER BLOCKS 24 VDC POWER POWER SUPPLY SUPPLY Figure 4b: Power Box Components, BMK2500 – 6000 – INTERNATIONAL 3. PROVISIONS FOR SERVICE Designers must provide emergency shutoffs and other devices to satisfy electrical codes. It is also recommended to provide an electrical shutoff disconnect switch of suitable load carrying characteristics near each BMK boiler.
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Page 7: Boiler Wiring
Benchmark Series Boilers Pre-Installation Electrical Power Guide 4. BOILER WIRING A dedicated protected circuit, sized for the amperage values below, should be provided to the boiler. No other electrical devices should be permanently wired on the same circuit. An emergency switch (electrical shutoff) must be wired in series with power to the unit. Connecting an emergency shutoff switch (E-stop) to the main power terminals of the boiler is the safest way to disable and un-power the unit. - Page 8 Benchmark Series Boilers Pre-Installation Electrical Power Guide 1 POLE 20 AMP 220 V / 1 / 50-60 Hz DISCONNECT SWITCH CIRCUIT BREAKER 1 POLE 20 AMP Diagram 1b - BMK750 – 2000: 220 V / 1 / 50-60 Hz Wiring Schematic – 3 Wire – INTERNATIONAL 480 V / 3...
- Page 9 Benchmark Series Boilers Pre-Installation Electrical Power Guide DISCONNECT SWITCH 3 POLE 20 AMP 3 POLE 20 AMP CIRCUIT BREAKER / 60 Hz Wiring Schematic- 4 Wire – DOMESTIC Diagram 4a: BMK5000/6000: 480 V or 575 V / 3 3 POLE 20 AMP DISCONNECT SWITCH 380-415 V / 3...
- Page 10 Benchmark Series Boilers Pre-Installation Electrical Power Guide DISCONNECT SWITCH 3 POLE 20 AMP 380-415 V / 3 / 50-60 Hz CIRCUIT BREAKER 3 POLE 20 AMP / 50-60 Hz Wiring Schematic- 4 Wire – INTERNATIONAL Diagram 5b- BMK4000-5000N: 380-415 V / 3 DISCONNECT SWITCH 3 POLE 40 AMP 208 V / 3...
- Page 11 Benchmark Series Boilers Pre-Installation Electrical Power Guide © AERCO International, Inc., 2023 TAG-0048_Q • 5/16/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 11 of 11...