Conair Thermolator TW, Руководство пользователя

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UGH025-0504 Thermolator TW Series
T
ROUBLESHOOTING
6-5
TW C
ONTROL
A
LARMS
Alarm
The actual tempera-
ture of water supplied
to the process
exceeds the 260°F
safety limit.
WARNING:
Only qualified
electrical service
personnel should
examine and correct
problems that require
opening the unit's
electrical
enclosure or checking
electrical current to
diagnose the cause of
a problem.
The Thermolator will
not maintain the
setpoint temperature,
or takes too long to
reach the setpoint
temperature range.
The actual tempera-
ture of water supplied
to the process is
outside the setpoint
deviation alarm band.
Possible cause
Water stopped flowing
through the unit or
between the supply outlet
and return inlet.
The heater contactor
failed.
The optional electro-
mechanical high tempera-
ture safety switch been
installed on this unit.
The actual temperature
of the process fluid is
more than 10°F higher
than the setpoint temper-
ature.
The actual temperature
of the process fluid is
more than 10°F lower
than the setpoint temper-
ature.
Solution
r
Verify that the unit is run-
ning and that the pump is
working.
r
Check for closed or defec-
tive cooling or vent valves
and plugged lines.
See
Repairing Solenoid Valves,
Section 6.
Replace the contactor if
defective.
See Replacing
the Heater Contactor, Section
6.
Verify the switch setting. A
too-low setting will cause nui-
sance trips. Check the switch
and replace if defective.
See
Checking and Replacing
Switches, Section 6.
Follow the troubleshooting
procedures in the table for a
See High Setpoint Deviation,
Section 6 .
Follow the troubleshooting
procedures in the table for a
See Low Setpoint Deviation,
Section 6.
The Thermolator has detected a problem that could lead to equip-
ment damage or personal injury if it is not corrected.
u
The controller displays a red alarm LED or an error code indi-
cating the cause of the problem.
u
If the optional alarm package is installed, the Fault button will
illuminate and the audible alarm will activate.
tAH
dTA