A dirty ultraviolet flame detector may fail to recognize burner
ignition, which will cause the GasTrac to alarm and shut down
automatically.
Stop the GasTrac.
Press the red
STOP
but-
ton, then press the rock-
er switch to
OFF
.
Disconnect and lock out main power.
Remove the flame detector.
Loosen the mounting nut while hold-
ing the flame detector, then pull the
detector away from the viewing hole.
Clean the viewing hole lens.
Use a soft cloth or cotton swab
moistened with alcohol.
Replace the flame detector.
Align the detector over the
viewing hole, and thread the silver
mounting nut onto the coupling.
Hand tighten first. Then use a
wrench to tighten the nut an
additional quarter turn.
GasTrac Process Air Heater
UGD014/0497
5-6
M
AINTENANCE
C
LEANING THE
U
LTRAVIOLET
F
LAME
D
ETECTOR
RUN
MAN
235.0
250.0
SP2
OP1
OP2
REM
HOLD
2216
WARNING:
Hot surfaces
Allow the GasTrac
to cool before
removing the burn-
er guard to perform
maintenance
1
2
3
4
5
C
LEANING THE
B
URNER
S
IGHT
G
LASS
WARNING:
Hot surfaces
Allow the GasTrac
to cool before
removing the burn-
er guard to perform
maintenance
A dirty sight glass prohibits inspection or viewing of the
metal-ceramic burner during operation.
Stop the GasTrac. Disconnect and lock out
main power.
Remove the screws on the
sight glass bracket.
Clean the sight glass.
Use a clean soft cloth or cotton swab
moistened with alcohol.
Coat the screw threads
with
a high-temperature anti-seize com-
pound.
Replace the sight glass.
Tighten the screws in the bracket
to hold the glass in place.
1
2
3
4
5