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Section 3
Daily Operation
The unit power switch is located on the back of the
unit. After turning the ON/OFF switch to ON the unit's
compressor will begin operating. Delfield refrigerated bases
are designed to maintain an operational temperature of
36°F to 40°F (2°C to 4°C). Base temperature control display
and the rail power switch are located in the unit nosing.
Temperature in the refrigerated rail opening is 33°F to 41°F
(0°C to 5°C).
Remove any water remaining in the cold rail during early
morning operations. Cold rails should be cleaned at this
time when the frost/ice is not present. Rail performance
will be significantly reduced if water remains in rail and is
allowed to freeze.
To ensure product quality in the rail it is recommended
that product be rotated every four hours. Product in the rail
must be removed and stored in the refrigerated base at the
end of the day. This allows you to turn the rail off at night
to save energy and time to defrost as needed. It also helps
maintain product quality.
High ambient temperature, humidity, or a rail that does
not have a full compliment of pans can cause excessive
frost in the rail.
If there is excessive frost upon morning startup, call
Delfield customer service.
Part Number: 9291514 04/17
Unit power switch is located
on the back of the unit
Rail power switch
Base temperature control
display
Note
Note
Evaporator Fan Operation
When the refrigerator is initially powered up or immediately
following a power outage the unit will begin cooling after a
3-6 minute delay. During normal operation the evaporator
fan pulses independently of the compressor as dictated by
the controller as follows:
1. During the cooling mode, compressor and evaporator
fan run simultaneously.
2. During the compressor off mode, evaporator fan pulses
three minutes on and three minutes off.
3. During an actual defrost event other than the off-cycle
defrost, compressor stays off but the evaporator fan
runs continuously.
Cooling Cycle
Compressor On
Compressor Off
Evaporator Fan On
Evap Fan Cycles On
3-Min, Off 3-Min
Operation
Defrost Cycle
Compressor Off
Evaporator Fan On
9
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