♦ To remove the thermostat if it
needs replacing, disconnect
power. Remove the nose screen
from in front of the evaporator.
♦ Remove the stainless steel
reflector. Remove the nose
screen in front of the evaporator
area.
♦ Remove the stainless steel
mirror reflector over the light
fixture.
♦ The heaters are held up against
the evaporator by spring clips.
♦ Consult the wiring diagram for
the wiring terminations for the
thermostat and disconnect.
♦ Press the heaters down and pull
up on the front edge of the
heater clips. The heaters can be
pulled forward.
♦ Remove the air scoop which is
in front of the evaporator coil
and has the defrost Thermostat
mounting plate attached to it.
Remove the thermostat and
disconnect wires.
♦ When replacing be sure the
back pass of the rear defrost
heater goes into the retaining
clip at the back of the drain
pan. This is necessary to
prevent ice build up in the drain
pan.
♦ Reverse the procedure to
reinstall the new thermostat.
DEFROST HEATER
REPLACEMENT
♦ The cabinet is equipped with
two (2) defrost heaters which
are wired in parallel, except for
the LBN-4 through –8, 220 volt
which are wired in series.
Wiring them this way allows for
lower wattage which increases
the life of the heater. The
drain pan does not have to
be removed to replace the
heaters.
♦ The heaters are equipped with
plug-in connections that plug
into the underside of the light
fixture. Disconnect the power
supply
12
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