Replacing Heater Elements - Conair Thermolater vacuTrac User Manual

R
EPLACING
H
EATER
E
LEMENTS
IMPORTANT:
Always
refer to the wiring dia-
grams that came with
your Thermolator to
locate specific electrical
components. Illustrations
in the User Guide are
intended to be represen-
tative only.
6-20
T
ROUBLESHOOTING
WARNING:
hot surface hazards
Before attempting maintenance of any kind
on the Thermolator, you must stop the unit;
disconnect and lockout the main power
supply; and allow the unit to cool to less than
100° F (38° C)
1
Disconnect and lockout the main power.
Remove the top panel of the Thermolator.
2
3 Remove the heater cap.
Use a 1/4-inch open-end
wrench to remove the three
bolts that hold the cap to the
heater tank.
4 Remove the heater
wiring harness.
Label the wiring layout of the
heater terminals; wires are
labeled 2T1, 2T2, 2T3 and
GND.
The wiring layout will be one of the following:
Parallel Delta
230/3/60
GND
Then unscrew the locking screws on the wiring harness
and remove the wires.
5
Shut off the cooling water infeed.
Drain the Thermolator using the drain plugs
6
located at the rear of the unit.
7
Remove the four bolts that hold the heater ele-
ment in place.
drive.
Thermolator TW-1 and TW-2
Electrical shock and
HEATER TERMINAL CONNECTIONS
2T2
GND
2T1
2T3
Use a 15/16-inch socket with 1/2-inch
Continued on next page
Heater
cap
Series Delta
460/3/60
2T2
2T1
2T3
UGH015/0100