Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
CHAPTER 7 – MAINTENANCE
Page
86
of
170
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0119_0A
11/03/2016
Ph.: 800-526-0288
GF-130-I
7.2 IGNITER-INJECTOR
The igniter-injector (Kit P/N
58023
) is located on the burner plate at the top of the Heating
Boiler. In addition to providing the ignition spark required to light the burner, the igniter-injector
also contains a gas injector tube which connects to the staged ignition assembly. Figure 7-1
shows the complete burner assembly removed from the Heating Boiler and indicates the
location of the igniter-injector flame detector and other related components.
Figure 7-1: Benchmark 750/1000 Burner Assembly (Removed from Unit)
The igniter-injector may be hot, therefore, care should be exercised to avoid burns. It is easier to
remove the igniter-injector from the unit after the unit has cooled to room temperature. To
inspect/replace the Igniter:
Igniter-Injector Maintenance Procedures
1.
Set the ON/OFF switch on the control panel to the
OFF
position. Disconnect AC power
from the unit
2.
Remove the top shroud from the unit by grasping the top handle and lifting straight up.
This will disengage the shroud from the four (4) pins in the side panels.
3.
Disconnect the cable from the igniter-injector (Figure 7-1).
STAGED IGNITION
SOLENOID
STAGED IGNITION
ASSEMBLY
O2 SENSOR
BURNER PLATE
BURNER
AIR/FUEL VALVE
BLOWER
IGNITER-INJECTOR
FLAME DETECTOR
GAS FLEX HOSE NIPPLE
BLOWER PROOF
SWITCH
BLOCKED INLET
SWITCH