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OPERATION AND MAINTENANCE
SERVICING DATA AND
PROCEDURES
OPERATION and
MAINTENANCE
TEMPERATURE CONTROL
–
The thermostat, which senses the
cold
wall temperature, is located at the low
er
rear right corner of the cabinet
through
the access panel. It has been pre-set
at
the factory to maintain
product
temperatures between +10° and +4°.
The
thermostat is adjustable. If other
than
normal temperatures are required,
adjust
the control by turning the knob clockw
ise
for colder and counter-clockwise fo
r
warmer temperatures.
DISPLAY LIGHTING
–
All models are equipped with
fluorescent
light fixtures installed in the canopy.
An
ON-OFF switch is located in the
right
service side of the canopy and is
so
labeled.
ANTI-SWEAT HEATERS
–
A resistance heater is installed in
the
perimeter of the base frame of the
canopy
to prevent condensation. Continuity
of
the heater circuit maybe checked at th
e
splice located inside the ballast
enclosure
in the compressor compartment.
Should the heater fail it may be replaced
by:
•
Raise top and canopy as an assembly
and place wood spacers between
top
and cabinet.
•
Remove heater from under base
frame.
•
Disconnect spade terminal splices and
remove.
•
Reassemble reverse order –
resistance
heater wire must be taped back
into
position
DEFROSTING –
It must be recognized that
accumulation
of frost on the cabinet walls does
impair
refrigeration. Daily scraping of
the
interior walls with a plastic scraper w
ill
extend the length of time betw
een
complete defrosting.
Most installations will require a c
omplete
defrosting every seven to ten
days.
Usually the best time to defrost is at
the
close of business so the cabinet will
be
regulated for the start of the nex
t business
day.
The ice cream should be removed
from
the cabinet and placed in a walk-in
or
storage freezer during the
defrosting
operation. A power switch for
turning
the case off for defrosting is
located
through the access panel.
•
Remove screws holding aluminum top
to cabinet.
Defrosting may be accomplished with
the
aid of a hair dryer, plastic scraper or
by
merely letting the cabinet remain
open
until the walls are cleared. Care should
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