Watts AERCO Benchmark BMK750 Design Manual
Electrical power design guide
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Also See for AERCO Benchmark BMK750:
- Operation and service manual (213 pages) ,
- Installation and start-up manual (62 pages) ,
- User manual (162 pages)
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Electrical Power Design Guide
Benchmark
Platinum Boilers
Models 750 through 6000
Other documents for this product include:
OMM-0127, GF-205-K BMK750K-3000K Installation-Startup KOREA
OMM-0128, GF-206-K BMK750K-3000K Operation- Maintenance KOREA
OMM-0136, GF-210 BMK750-6000 Platinum-Edge Installation-Startup
OMM-0137, GF-211 BMK750-6000 Platinum-Edge Operation-Service
OMM-0138, GF-212 BMK750-6000 Platinum-Edge Reference Manual
TAG-0019, GF-2070 Benchmark Boiler Application Guide
TAG-0022, GF-2050 Benchmark Vent & Combustion Air Guide
TAG-0047, GF-2030 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.
• GF-2060 • 8/6/2020
TAG-0048_P
®
and Benchmark
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
© 2020 AERCO
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Summary of Contents for Watts AERCO Benchmark BMK750
- Page 1 Electrical Power Design Guide ® Benchmark and Benchmark Platinum Boilers Models 750 through 6000 Other documents for this product include: OMM-0127, GF-205-K BMK750K-3000K Installation-Startup KOREA OMM-0128, GF-206-K BMK750K-3000K Operation- Maintenance KOREA OMM-0136, GF-210 BMK750-6000 Platinum-Edge Installation-Startup OMM-0137, GF-211 BMK750-6000 Platinum-Edge Operation-Service OMM-0138, GF-212 BMK750-6000 Platinum-Edge Reference Manual TAG-0019, GF-2070 Benchmark Boiler Application Guide TAG-0022, GF-2050 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 Service Disconnect Switch Figure 1: Service Disconnect Switch Typical Location 12V POWER FUSE TERMINAL SUPPLY BLOCKS BLOCKS POWER BREAKER FLAME ROD SIGNAL 24 VDC POWER TRANSFORMER AMPLIFIER SUPPLY Figure 2a: Power Box Components, BMK750 & 1000 – DOMESTIC TAG-0048_P •...
- 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 To 220V 24 VDC SIGNAL TRANSFORMER POWER POWER AMPLIFIER SUPPLY SUPPLY Figure 3b: Power Box Components, BMK1500 –...
- Page 6 Benchmark Series Boilers Pre-Installation Electrical Power Guide FUSE POWER TERMINAL 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 should be provided from the power source to the boiler. No other electrical devices should be permanently wired on the same circuit. The protected circuit and circuit breaker switch must be sized for the amperage values below. - 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 208 V / 3...
- Page 9 Benchmark Series Boilers Pre-Installation Electrical Power Guide 380-415 V / 3 / 50-60 Hz / 50-60 Hz Wiring Schematic- 4 Wire – INTERNATIONAL Diagram 3b- BMK2500-5000N: 380-415 V / 3 208 V / 3 / 60 Hz / 60 Hz Wiring Schematic- 4 Wire – DOMESTIC Diagram 4: BMK5000/6000: 208 V / 3 480 V / 3...
- Page 10 Benchmark Series Boilers Pre-Installation Electrical Power Guide 3 POLE 20 AMP DISCONNECT SWITCH 380-415 V / 3 / 50-60Hv CIRCUIT BREAKER 3 POLE 20 AMP / 50-60 Hz Wiring Schematic- 4 Wire – INTERNATIONAL Diagram 5b: BMK5000/6000: 380-415 V / 3 3 POLE 20 AMP DISCONNECT SWITCH 480 V / 3...
- Page 11 Benchmark Series Boilers Pre-Installation Electrical Power Guide DISCONNECT SWITCH 3 POLE 40 AMP 3 POLE 40 AMP 208 V / 3 / 60 Hz CIRCUIT BREAKER / 60 Hz Wiring Schematic- 4 Wire – DOMESTIC Diagram 7: BMK4000-5000N: 208 V / 3 5.
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Page 12: Change Log
Benchmark Series Boilers Pre-Installation Electrical Power Guide Change Log: Date Description Changed by Rev O: Linley Added BMK5000N information where applicable. 6/9/2020 Thobourne, Chris Blair Rev P: Added diagram and description of E-Stop power shutoff switch to Section 4. 8/6/2020 Chris Blair Added 208 V row to BMK 4000/5000N –...
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