OPERATION AND MAINTENANCESERVICING 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
normal tem peratures are required,
adjust
the control b y 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 –
Aresistance heater is installed in
the
perimeter of the base fra me 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 cabine t.
•
Remove heater from under base
frame.
•
Disconnect sp ade terminal splices and
remove.
•
Reassemble reverse order –
resistance
heater wire m ust 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 req uire 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 th e star t of the nex
t business
day.
The ice crea m should be removed
from
the cabinet and placed in awalk-in
or
storage freezer during the
defrosting
operation. Apower 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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