AERCO BMK 6000 Dual Fuel - Manual (Page 94)

Benchmark 6000 DF Installation, Operation & Maintenance Manual
CHAPTER 6 – SAFETY DEVICE TESTING
Page 94 of 219 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0096_0B
03/21/2014
Ph.: 800-526-0288
GF-141
Figure 6-9: Air/Fuel Valve Purge and Ignition Switch Locations
6.11 IGNITION SWITCH OPEN DURING IGNITION
The Ignition Switch (and the Purge Switch) is located on the Air/Fuel Valve. To check the switch,
proceed as follows:
Ignition Switch Open During Ignition
1. Set the unit’s ON/OFF switch to the OFF position.
2. Place the unit in Manual Mode and set the valve position between 25% and 30%.
3. Remove the Air/Fuel Valve cover (see Figure 6-8, above) by rotating the cover
counterclockwise to unlock and lift up to remove.
4. Remove one of the two wires (#169 or #170) from the Ignition Switch (see Figure 6-9).
5. Initiate a unit start sequence.
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.
STEPPER
MOTOR
PURGE
POSITION
SWITCH
IGNITION
POSITION
SWITCH
Dial
AIR IN
TO BLOWER