Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
CHAPTER 7 – MAINTENANCE
OMM-0119_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
87
of
170
GF-130-I
Ph.: 800-526-0288
11/03
/2016
Igniter-Injector Maintenance Procedures
–
Continued
4.
Refer to the partial exploded view in Figure 7-2. Using a 7/16” open-end wrench,
disconnect the compression nut securing the gas injector tube of the igniter-injector to the
elbow of the staged ignition assembly. Disconnect the staged ignition assembly from the
igniter-injector.
5.
Next, loosen and remove the igniter-injector from the burner plate using a 1" open-end
wrench.
6.
Check the igniter-injector for evidence of erosion or carbon build-up. If there is evidence
of substantial erosion or carbon build-up, the igniter-injector should be replaced. If carbon
build-up is present, clean the component using fine emery cloth. Repeated carbon build-
up is an indication that the combustion settings of the unit should be checked. Refer to
Chapter 4 for combustion calibration procedures.
Figure 7-2: Igniter-Injector & Flame Detector Mounting Details
7.
Prior to reinstalling the igniter-injector, a high temperature, conductive, anti-seize com-
pound must be applied to the threads.
O2 SENSOR
& WASHERS
STAGED
IGNITION
SOLENOID
IGNITER-INJECTOR
INDEXING WASHERS
(Quantity = 0-3 as
required)
FLAME
DETECTOR
& GASKET
BURNER
PLATE