OPERATION AND MAINTENANCE
SERVICING DATA AND
PROCEDURES
OPERATION and
MAINTENANCE
TEMPERATURE CONTROL –
The thermostat, which senses the cold
wall temperature, is located at the lower
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 clockwise
for
colder
and
counter-clockwise
for
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 the
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 will
extend
the
length
of
time
between
complete defrosting.
Most installations will require a complete
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 next 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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