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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
The power breaker shown in figure 2-9 does not remove power
from the terminal blocks.
TRANSFORMER
24V POWER
SUPPLY
12V POWER
SUPPLY
FUSE BLOCKS (2)
Figure 2-9: Power Box Internal Components (Cover Removed)
With the exception of the transformer shown in Figure 2-9, all of the components in the Power Box are
mounted on a DIN rail.
All electrical conduit and hardware must be installed so that it
does not interfere with the removal of any unit covers, inhibit
service/maintenance, or prevent access between the unit and
walls or another unit.
2.9.1 Electrical Power Requirements
Each Benchmark Boiler model is available in two voltage configurations as follows:
•
208-230 VAC, Three-Phase, 60 Hz @ 20 Amps (Full load amperage)
•
460 VAC, Three-Phase, 60 Hz @ 15 Amps (Full load amperage)
The Power Box contains terminal blocks as shown in Figure 2-9. In addition, a label showing the required
AC power connections and the amperage rating of the unit is provided on the front cover of the Power
Box as shown in Figure 2-10.
Page 24 of 234
05/21/2014
CHAPTER 2 – INSTALLATION
WARNING!
NOTE
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
WIRE CONDUITS
TERMINAL BLOCKS
POWER
BREAKER
OMM-0099_0A
GF-145
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