Pilot Ignition - Benchmark 5000-6000; Flame Detector - Watts AERCO Benchmark BMK5000 Operation And Service Manual

Benchmark Platinum-Edge [ii]: Operation-Service Manual
SECTION 8 – MAINTENANCE
8.2.1 PILOT IGNITION – BENCHMARK 5000-6000
The Benchmark 5000 and 6000 Pilot Burner (P/N 66026) is mounted to the Burner's front plate.
It should be inspected every 12 months and replaced every 24 months, or if damaged or
warped.
Parts and instructions are included in 12 Month Maintenance Kit P/N 58025-11 and all
BMK5000 – 6000 24 Month Maintenance Kits.
BLOWER FLANGE
PILOT FLAME
DETECTORS
BLOWER
Figure 8-2: Pilot Burner and Pilot Flame Detectors (BMK5000/6000)

8.3 FLAME DETECTOR

The BMK750 – 5000N 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. There are also two (2) optical Pilot Flame Detectors mounted on the Burner
front plate (see Figure 8-2, above).
The flame detector (and Main Flame Detector on BMK 5000/6000) should be inspected every
12 months and replaced every 24 months, or sooner if damaged or warped. Note, it may be
hot; allow the unit to cool sufficiently before removing the flame detector.
Be sure to use the current model flame detector, included in the maintenance kit; some older
flame detectors are shaped differently and may not function properly.
This part and instructions are included in both 12 Month Maintenance Kit P/N 58025-01 (BMK750
–5000N) and P/N 58025-11 (BMK5000 & 6000) and all BMK750 – 6000 24 Month Maintenance
Kits.
OMM-0137_J •
12/20/2022
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
BURNER
FRONT PLATE
MAIN FLAME
DETECTOR
(P/N 65182)
PILOT BURNER
(P/N 66026)
CONNECTS TO
FLEX GAS LINE
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