Benchmark 2.0 LN Installation, Operation & Maintenance Manual
CHAPTER 6 – SAFETY DEVICE TESTING
OMM-0046_0J AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 79 of 168
GF-123 Ph.: 800-526-0288 06/18/2015
6. The unit should begin its start sequence and then shut down and display IGN SWITCH
OPEN DURING IGNITION.
7. Replace the wire on the Ignition Switch and press the CLEAR button. The unit should
restart.
AIR/FUEL VALVE COVER
(ROTATE CCW TO REMOVE)
Figure 6-5: Air/Fuel Valve Cover Location
STEPPER
MOTOR
DIAL
172
171
169
170
IGNITION
POSITION
SWITCH
PURGE
POSITION
SWITCH
AIR
IN
TO
BLOWER
Figure 6-6: Air/Fuel Valve Purge and Ignition Switch Locations
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