AERCO BMK 6000 Dual Fuel - Manual (Page 88)

Benchmark 6000 DF Installation, Operation & Maintenance Manual
CHAPTER 6 – SAFETY DEVICE TESTING
Page 88 of 219 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0096_0B
03/21/2014
Ph.: 800-526-0288
GF-141
Flame Fault Tests
1. Set the ON/OFF switch to the OFF position.
2. Place the unit in the Manual Mode and set the valve position between 25% and 30%.
3. Close the manual gas shut-off valve located between the Safety Shut-Off Valve (SSOV)
and the Air/Fuel Valve (see Figure 6-4).
4.
Set the ON/OFF switch to the ON position to start the unit.
5.
The unit should purge and light the Pilot flame and then shut down after reaching the main
Burner Ignition cycle and display FLAME LOSS DURING IGN.
6.
Open the valve previously closed in step 3 and press the CLEAR button.
7. Restart the unit and allow it to prove flame.
8. Once flame is proven, close the manual gas valve located between the SSOV and the
Air/Fuel Valve (Figure 6-4).
9. The unit should shut down and Lockout. A flashing FLAME LOSS DURING RUN should
appear in the display.
10. Open the valve previously closed in step 8.
11. Press the CLEAR button. The unit should restart and fire.
Figure 6-4: Bare Boiler – Partial View
6.8 AIR FLOW FAULT TESTS
These tests check the operation of the Blower Proof Switch and Blocked Inlet Switch shown in
Figure 6-5.
AIR FILTERS
MANUAL GAS
SHUT-OFF VALVE
AIR/FUEL VALVE
BLOWER
Y-DUCT