THERMODYNE 1600NDNL, International Service Manual

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3. The TBC-41 Controller is very easy to remove.
There are four screws and spacers apiece
holding the display and power boards. They
are different lengths: the spacers used with
the power board are 1/2" (12.7mm) long; the
spacers used with the display board are 5/16"
(8mm) long.
Springs (4)
1/2" (12.7mm)
Spacers (4)
Figure 9: Temperature Controller Removal
4. Restore the power and check the controller
for proper operation.
5. Remove the unit from its power source and
reattach the Power Head Lid.
6. Restore power to the unit and ensure it is
operating correctly.
NOTICE: The new Temperature Controller
may require set up procedures. Refer to the
Temperature Controller Set Up Procedures
section of this manual for set up procedures.
WARNING
Before removing any sheet metal panels or
servicing this equipment, always perform
the Electrical LOCKOUT/TAGOUT Procedure.
Be sure all circuits are disconnected. Failure
to comply with this procedure can cause
property damage, injury or death.
WARNING
Certain components may be hot if the
unit was in operation prior to performing
a procedure. Allow the unit to cool before
beginning work.
COOLING FAN
1. Follow the LOCKOUT/TAGOUT procedure
using the procedures provided in the Lockout/
Tagout Procedures section of this manual.
2. Remove the Power Head Lid following the
instructions provided in the Panels and
Covers section of this manual.
3. Unplug the leads from the fan.
4. Remove the four screws securing the fan to
the Power Head.
Figure 10: Cooling Fan
5. Reverse this procedure to install the new
Cooling Fan.
WARNING
Before removing any sheet metal panels
or servicing this equipment, always
perform the Electrical LOCKOUT/TAGOUT
Procedure. Be sure all circuits are
disconnected. Failure to comply with this
procedure can cause property damage,
injury or death.
WARNING
Certain components may be hot if the
unit was in operation prior to performing
a procedure. Allow the unit to cool before
beginning work.