AERCO BMK 6000 - Manual (Page 92)

Benchmark 6000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 7 – MAINTENANCE
Page 92 of 210 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0086_0D
03/20/14
Ph.: 800-526-0288
GF-133
7.2 PILOT BURNER
The Pilot Burner (P/N 29700) is located on the right-front of the Burner Plate. It contains an
ignition cable and a Pilot gas line connected to the bushing. Figure 7-1 shows the location of the
Pilot Burner and related components.
Figure 7-1: Pilot Burner, Main & Pilot Flame Detector Mounting Locations
The Pilot Burner may be hot, therefore care should be exercised to avoid burns. It is easier to
remove the Pilot Burner from the unit after it has cooled to room temperature. To inspect/replace
the Pilot Burner, perform the following procedure:
Pilot Burner Maintenance Procedure
1. Set the ON/OFF switch on the control panel, to the OFF position. Disconnect AC power
from the unit
2. For easy access, open the front panel and right side door. If you are working on the left unit
of a two-unit, zero side clearance installation, you may want to remove the top panel and
service the unit from above.
3. Disconnect the ignition cable from the Pilot Burner (Figure 7-1).
4. Using a 1/2” open-end wrench, disconnect the Pilot gas line from the reducer fitting and
elbow shown in Figure 7-1.
5. First, remove the reducer fitting and then the elbow from the Pilot Burner.
6. Remove one of the two Pilot Flame Detectors to provide clearance for Pilot Burner
removal.
7. Using a 1-1/2” open end wrench, loosen and remove the Pilot Burner from the Burner
Plate.
SIGHT GLASS
MAIN FLAME
DETECTOR
TO PILOT
GAS LINE
BLOWER
BLOWER FLANGE
BURNER PLATE
PILOT
BURNER
PILOT FLAME
DETECTOR