1 digital alarm switch checks and adjustments, Benchmark 2.0ln dual-fuel low nox boiler, Gf-127 – AERCO BMK 2.0 LN Dual Fuel Serial G-11-2402 and UP User Manual
Page 54
CHAPTER 4: INITIAL START-UP
Page 54 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
Figure 4-6: Over Temperature Limit Switch and Fuel Selector Locations
Digital Alarm Switch Checks and Adjustments
4.6.1
The digital alarm switch settings can be checked or adjusted using the controls and display on the front
panel of the switch illustrated and described in Figure 4-7 and Table 4-13.
F
Alarm
RST
SET
Limit Control
Figure 4-7: Digital Alarm Switch Front Panel
RESET BUTTON
FOR MANUAL
TEMPERATURE
LIMIT SWITCH
DIGITAL OVER-
TEMPERATURE
ALARM SWITCH
FUEL
SELECTOR
SWITCH
ADJUSTABLE
TEMPERATURE
LIMIT SWITCH
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