The spark igniter should be replaced at least once a year to
assure trouble-free operation. You should replace the igniter
before the annual period, if you inspect it and find:
●
The spark gap is less than 0.125 inch. The gap should
be between 0.07 and 0.09 inch.
●
The igniter insulation is cracked
●
The spark electrodes are warped or taper to a needle-
like shape.
Do not operate the GasTrac with a worn or damaged spark
igniter. A badly burned or warped igniter can cause burner
ignition failure.
Stop the GasTrac.
Press the red
STOP
button, then press the
rocker switch to
OFF
.
Disconnect and lock out main power.
Remove the igniter wire.
Pull the wire boot, not the wire,
away from the spark igniter. If the
wire or its boot is cracked, you
should replace it.
Remove the spark igniter.
Use a
7
⁄
8
inch spark
plug socket and ratchet
to loosen the igniter.
Pull the igniter straight
out of the GasTrac. Do
not allow the spark
igniter to touch the
burner surface.
R
EPLACING THE
S
PARK
I
GNITER
GasTrac Process Air Heater
UGD014/0497
5-4
M
AINTENANCE
1
2
3
RUN
MAN
235.0
250.0
SP2
OP1
OP2
REM
HOLD
2216
IMPORTANT: When
removing or inserting the
spark igniter, do not allow
the igniter electrode or
grounding rod to touch the
burner. You could damage
the burner surface.
3
4
4
TIP: Before removing the spark igniter for inspection,
use a felt tip marker to mark the position of the igniter
in its threaded hole. By
indexing the position,
you will able to return
the igniter to the correct
position after inspection.
The igniter must be
installed so that the
ground rod is 180˚
away from the
burner surface.
WARNING:
Hot surfaces
Allow the GasTrac
to cool before
removing the burn-
er guard to perform
maintenance