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Benchmark 750-3000 Boiler Installation & Startup Manual
SECTION 2 – INSTALLATION
2.10.3 Electrical Power Box Internal Components
WARNING!
The power breaker shown in Figure 2-9a, 2-9b and 2-9c does NOT remove power from the
terminal blocks.
12V POWER
TRANSFORMER
Figure 2-9a: BMK 750/1000 Power Box Internal Components
TRANSFORMER
24V POWER
SUPPLY
12V POWER
SUPPLY
FLAME ROD SIGNAL
AMPLIFIER
Figure 2-9b: BMK 1500/2000 Power Box Internal Components
OMM-0121_D • GF-205 • 5/9/2019
FUSE BLOCKS (2)
SUPPLY
115V/24V
FUSE BLOCKS (2)
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
POWER
BREAKER
TERMINAL BLOCKS
FLAME ROD SIGNAL
AMPLIFIER
24 V POWER SUPPLY
(SEQUENCING VALVE)
WIRE CONDUITS
TERMINAL BLOCKS
POWER
BREAKER
Page 32 of 122
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