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Watts AERCO Benchmark OMM-0136 - Pilot Ignition Rod - Bmk5000 & 6000; Flame Detector

Watts AERCO Benchmark OMM-0136
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Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 8 MAINTENANCE
OMM-0137_E • GF-211 12/13/2019 Technical Support (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 108 of 153
8.3 PILOT IGNITION ROD BMK5000 & 6000
The Pilot Burner (P/N 29700) is located on the right-front of the Burner Plate. It contains an
ignition cable, the Pilot gas line connected to the bushing. The Pilot Burner Rod (P/N 66100),
should be inspected every 12 months and replaced if damaged or warped. Figure 8-2a shows
the location of the Pilot Burner and related components.
Parts and instructions are included in 12 Month Maintenance Kit P/N 58025-11 and all
BMK5000 & 6000 24 Month Maintenance Kits.
Figure 8-2a: Pilot Burner, Main & Pilot Flame Detector
Figure 8-2b: Pilot Burner & Pilot Ignition Rod Cross-Section
8.4 FLAME DETECTOR
The BMK750 4000 Flame Detector (kit P/N 24356-1) is located on the burner plate at the top
of the unit (see Figure 8-1a through 8-1c, above).
The BMK5000 & 6000 Main Flame Detector (P/N 65182) is located on the Blower Flange near
the top of the unit (see Figure 8-2a, above).
SIGHT GLASS
MAIN FLAME
DETECTOR
(P/N 65182)
TO PILOT
GAS LINE
BLOWER
BLOWER FLANGE
PILOT BURNER,
PILOT IGNITION ROD
(P/N 66100)
PILOT FLAME
DETECTORS
PILOT BURNER
ROD TIP
PILOT BURNER ROD
(P/N 66100)

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