Benchmark 6000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 6 – SAFETY DEVICE TESTING
Page
86
of
210
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0086_0D
03/20/14
Ph.: 800-526-0288
GF-133
Blocked Inlet Switch Test
–
Continued
6. Cover the combustion air inlet opening with a solid, flat object, such as a piece of thick
plywood or a thick metal plate.
7. The unit should shut down and display
AIRFLOW FAULT DURING RUN
. This step
confirms proper operation of the Blocked Inlet Switch.
8. Remove the cover from the air inlet opening and reinstall the Combustion Air Duct or Y-
Duct and air filters.
9. Remove the jumper wires installed in step 2 and replace the black connector boot on the
Flame Detector.
10. Press the
CLEAR
button. The unit should restart.
Figure 6-5: Boiler Top View Showing Air Inlet Location
EXHAUST
MANIFOLD
HOT WATER
OUTLET
FRONT
REAR
AIR INLET
(Combustion Air
Duct removed)