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© 2011 Aqua-Hot
®
AHE-100-02S Hydronic Heating System Service Manual—Rev. B
Ignition Electrodes
The diesel-burner’s ignition coil produces a high
voltage ignition spark across the ignition electrodes,
which ignites the incoming air/fuel mixture.
Cleaning and Maintenance:
1.
Polish away any carbon deposits that may have
baked onto the metal tips of the ignition electrodes
with a course sponge.
2.
If the ignition electrode’s electrical insulator is
cracked or damaged, the ignition electrode must be
replaced.
Ignition Electrode Adjustment Procedure:
1.
Follow the directions for detaching/reattaching the
diesel burner in section 7 Of this manual.
2.
Using a 10mm socket, slightly loosen the retaining
clamp bolt.
3.
Place the electrode adjustment gauge on the nozzle
manifold hex and insert the metal tips of the ignition
electrodes into the appropriate notches of the elec-
trode adjustment gauge.
4.
Using a 10 mm socket, tighten the retaining clamp
bolt.
5.
Remove the electrode adjustment gauge and reat-
tach to the diesel-burner head.
Replacement Procedure:
1.
Using a 10mm socket, loosen and remove the re-
taining clamp bolt, and the retaining clamp.
2.
Slide the electrode out of the photo disc.
3.
To remove the electrode, hold onto the orange elec-
trode boot, and pull firmly on the electrode.
4.
Once the electrode has been removed Inspect inside
the orange electrode boot for the retaining clip,
which holds the electrode in place. If it is missing,
replace the electrode boot.
NOTE:
The electrode adjustment gauge is used to set the
gap between the ignition electrodes. The electrode
adjustment gauge is located on the outside surface
of the diesel-burner head on the left hand side.
NOTE:
Be sure not to over-tighten the retaining clamp bolt
when readjusting the ignition electrodes. Over-
tightening the retaining clamp bolt will bend the
retaining clamp and prevent the photo disc from
floating freely. Not allowing the photo disc to float
freely will cause poor combustion and result in a
smoky exhaust. A bent retaining clamp can be re-
straightened with a punch and hammer. Lay the
clamp’s beveled side down on a solid flat surface
and align the thick end of the punch at dead center.
Tap the punch lightly until the retaining clamp re-
turns to proper form.
Figure 42
S
ECTION
8: D
IESEL
-B
URNER
C
OMPONENTS
/T
ROUBLE
S
HOOTING
Summary of Contents for AHE-100-02S
Page 1: ...SERVICE MANUAL 2011 Aqua Hot Heating Systems Inc AHE 100 02S ...
Page 2: ... Page 2 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
Page 104: ... Page 104 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
Page 105: ... Page 105 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
