Igniter-Injector - Watts Aerco Innovation 800 User Manual

Innovation Hot Water Hot Water Boiler User Manual

6.2 IGNITER-INJECTOR

The igniter-injector (Kit P/N 58023) is located on the flange of the intake manifold, at the bottom
of the unit's heat exchanger. 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.
DETECTOR
INTAKE MANIFOLD
FLANGE
FLAME DETECTOR
GASKET
(Kit P/N 24356-2)
FLAME DETECTOR
(Kit P/N 24356-2)
IGNITER-INJECTOR
(Kit P/N 58023)
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.
Page 72 of 174
11/15/2016
CHAPTER 6 – MAINTENANCE
FLAME
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
IGNITER-INJECTOR
BURNER FLANGE GASKET
(P/N GP-18899)
IGNITION
SOLENOID
OBSERVATION
PORT
OMM-0120_0A
GF-128-I