UGD014/0497
GasTrac Process Air Heater
T
ROUBLESHOOTING
6-5
Alarm
Loop
Break
The actual drying
temperature did not
approach the set-
point within the loop
break time. There
may be a problem in
the combustion or
process air circuit.
Power
Failure
The line voltage to
the Temperature
Controller is too low.
Possible cause
Is something blocking or
restricting the flow of
drying, or process, air?
Is the GasTrac combus-
tion air filter dirty?
Is the Variable Speed
Controller operating cor-
rectly?
Is the setpoint correct?
Is the GasTrac being sup-
plied with the correct
voltage?
Is there a loose or faulty
connection in the electri-
cal circuit?
Solution
❒
Check the process filter in
the host dryer. Clean the filter,
or replace it if it is damaged.
❒
Check the process air hoses
for leaks, crimps, blockage or
loose connections. Remove
obstructions. Repair leaks or
loose connections.
❒
Check the process air blow-
er in the host dryer. If it is not
running correctly, see the
dryer’s manual.
Clean the combustion air filter.
Replace the filter if it is torn or
too clogged with dirt to clean.
Check the Variable Speed
Controller for error or alarm
messages. See the Variable
Speed Controller pages in this
T
ROUBLESHOOTING
section and in
the Allen-Bradley controller
manual.
Make sure the setpoint is with-
in the range specified for your
GasTrac unit.
Check the main power supply
to the GasTrac and the electri-
cal circuits supplying power to
the control panel and the tem-
perature controller.
L.br
T
EMPERATURE
C
ONTROLLER
A
LARMS
Pwr.F
The Temperature Controller will flash an alarm
message in the upper or lower display window.
WARNING: The GasTrac should be test-
ed and repaired only by qualified technicians
equipped with the correct tools and trained in
the maintenance and repair of electrical sys-
tems and industrial gas appliances.
RUN
MAN
SP2
OP1
OP2
REM
HOLD
2216
!