CHAPTER 2: INSTALLATION
Page
26
of
158
PR2: 04/22/13
Benchmark 2.0LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0052_0E
GF-127
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
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Ph: 800-526-0288
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480 VA Pilot Duty @ 240-277 VAC
If pump/valve load exceeds the above contact ratings, use a separate contact relay.
See Diagrams 2-1a and 2-1b.
To identify if the boiler is equipped with the BMK Pump Relay Option (part no. 69102), look for
the label and relay as shown in Figure 2-12.
Diagram 2-1a: Schematic – System Pump Start using Boiler Pump Relay
Diagram 2-1b: Schematic – System Pump Start using a Separate Contact Relay
Figure 2-11: Identifying the Presence of BMK Pump Relay Option 69102
