Questions? Please Contact Your Local Manufacturer’s Representative
SECTION 4 EDR-SOLA-IOM-2022-0216 MAINTENANCE
4-9
1/8(3/32"- ")
(0.1" - 0.125")
1/16( "-1/8")
(0.0625"-0.125")
MESH BURNER
GAP BETWEEN
ELECTRODE
AND MESH BURNER
GAP BETWEEN
THE ELECTRODES
POSITIVE
ELECTRODE
NEGATIVE
ELECTRODE
FIGURE 76 IGNITOR GAP TOLERANCES
5. Verify the burner head to ignitor gap with the use of
a borescope. For borescopes equipped with a mirror,
insert the end straight down into the combustion
chamber at least 6” (152 mm) to view the ignitor from
the side and bottom. For borescopes not equipped
with a mirror, bend and angle the camera to obtain a
necessary view.
6. Visually verify the ignition position relative to the
burner head.
The negative electrode must not be touching or
resting on the burner head.
The two electrodes must not be touching. See
Figure 76.
The burner to ignition gap tolerance is 0.0625”
(1.588 mm) to 0.125” (3.175 mm), it should appear
visually similar to the electrode gap. See Figure 76.
7. Remove the borescope and reinstall the heat block,
ame scanner, and sight glass. Apply new thread
sealant to all applicable connections.
After All Repairs and Maintenance
1. Perform all Safety Checks as described in the Operation
section.
2. Fire the boiler and perform a full combustion
verication. Make adjustments as necesary.
3. Complete the “Installation and Operation Report” for
Endura boilers and retain in the boiler’s maintenance
records.
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