Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 6 – MAINTENANCE
Page
78
of
216
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0078_0M
09/11/2015
Phone: 800-526-0288
GF-128
6.2 IGNITER-INJECTOR
The igniter-injector is located on the flange of the intake manifold, at the bottom of the unit’s heat
exchanger. The igniter-injector (Kit P/N
58023
) is the same for Natural Gas and Propane units.
Figure 6-1 shows the intake manifold (removed from the heater) showing the location of the
igniter-injector, flame detector and gasket (Kit P/N
24356-2
) and related components.
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.
Figure 6-1. Intake Manifold with Igniter-Injector & Flame Detector
Igniter-Injector
Inspection/Replacement
1.
Set the ON/OFF switch on the control panel, to the
OFF
position. Disconnect AC power
from the unit.
2.
Remove the side and rear panels from the unit.
3.
Disconnect the ignition cable and ground wire from the igniter-injector.
4.
Refer to Figure 6-1. Disconnect the compression nut securing the gas injector tube of the
igniter-injector to the elbow of the ignition assembly. Disconnect the ignition assembly from
the igniter-injector.
5.
Loosen and remove the igniter-injector from the burner plate.
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.
FLAME
DETECTOR
INTAKE
MANIFOLD
FLANGE
IGNITER-INJECTOR
(Kit P/N 58023)
FLAME DETECTOR
(Kit P/N 24356-2)
FLAME DETECTOR
GASKET
(Kit P/N 24356-2)
BURNER FLANGE GASKET
(P/N GP-18899)
OBSERVATION
PORT
IGNITER-INJECTOR
IGNITION
SOLENOID