AERCO BMK 2.0 LN Dual Fuel Serial G-11-2402 and UP - Manual (Page 38)

CHAPTER 3: CONTROL PANEL OPERATION
Page 38 of 160 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 • Ph: 800-526-0288
c) The gas Safety Shut-Off Valve (SSOV) is energized (opened) allowing gas to flow
into the Air/Fuel Valve.
100
DETAIL “A”
TO BLOWER
AIR IN
DIAL
(DETAIL “A”)
STEPPER
MOTOR
Figure 3-4: Air/Fuel Valve In Purge Position
Figure 3-5: Blower Proof Switch