Door Frame Heater - Traulsen UHT48 Service Manual

V. REMOVAL & REPLACEMENT OF PARTS (cont'd)
WARNING: UNPLUG UNIT BEFORE SERVICING
V. i - DOOR FRAME HEATER:
Begin by opening the door past 90 degrees. Next re-
move the door frame heater covers from the door frame
by gently prying out on the inside edge of the cover.
NOTE: Do not bend the covers. They will be difficult
to install.
Pull the door frame heater wire loose from the door
frame channel (see figure 19).
Disconnect the supply lead wires from each end of
the heater, and the (green) ground lead wire from one
end.
Connect lead wires to replacement heater and insert
the new heater into the door frame channel.
NOTE: Do not kink heater wire at the corners of the
frame.
NOTE: Check position of the heater cover in the top
corners of the door frame.
Install the horizontal heater covers first, then the ver-
tical ones, using the following method.
a) Hook the inside edge of the heater cover over the
lip of the door frame.
b) Use your fingers to push the outside edge over the
outside lip of the heater channel in the door frame.
c) Repeat for each side.
Finish by checking for proper operation of both the
door and door frame heater.
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