AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 100)

PR2: 05/01/11 Page 100 of 162
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0C
GF-121
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Figure 8-1: High Gas Pressure Switch & Snubber Locations
AIR/FUEL
VALVE
STAGED
IGNITION
SOLENOID #1
FLAME
DETECTOR IGNITOR-
INJECTOR
BLOWER
BURNER
PLATE
BURNER
Figure 8-2: Staged Ignition Solenoid Location
NATURAL
GAS SSOV
PROPANE
GAS SSOV
NATURAL
GAS INLET
PROPANE
GAS INLET
TO AIR/FUEL
VALVE
NATURAL GAS HIGH
PRESSURE SWITCH
MANUAL SHUT-OFF
VALVE
PROPANE GAS HIGH
PRESSURE SWITCH
SNUBBERS
PROPANE
PRESSURE
REGULATOR
FEEDBACK LINE
NATURAL GAS
PRESSURE
REGULATOR
FEEDBACK LINE
RSI
ASSEMBLY