Watts AERCO Benchmark BMK5000 - Page 133

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 8 – MAINTENANCE
OMM-0145_D • GF-218 • 11/2/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 133 of 213
Figure 8-1b: Igniter-Injector & Flame Detector (BMK1500/2000)
Figure 8-1c: Igniter-Injector & Flame Detector (BMK2500-5000N)
Figure 8-1d. Igniter-Injector Orientation (BMK2500/3000 Shown)
BLOWER
PLENUM
IGNITER-
INJECTOR
ASSEMBLY
FLAME
DETECTOR
FLAME
OBSERVATION
PORT
O
2
SENSOR
BLOWER
PLENUM
IGNITOR-INJECTOR
ASSEMBLY
FLAME
DETECTOR
BURNER
FLAME OBSERVATION PORT
O
2
SENSOR
BURNER
O2 SENSOR
IGNITER-INJECTOR
INJECTOR TUBE
INJECTOR TUBE
POSITION INSIDE 75 ARC