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Part Number: 9294098 01/18
Operation
Section 3
Power To Cool
• Salad and Mega top 4460, 4464, and 4472 models are
equipped with a power disconnect switch located at
the rear of the unit just below the thermostat control
knob. Switch must be in the “on” position for the unit to
operate.
• After the cabinet is connected to the power source it will
automatically begin operating.
• With the covers and doors closed, the temperature of the
cabinet should reach 36°F to 40°F (2°C to 4°C) in about
one hour.
• Temperature on salad top will maintain 33°F to 41°F (1°C
to 4°C) with pans recessed 2.5” (6.5cm) at 86°F ambient
room temperature for a period of four hours, meeting
NSF-7 requirements.
Temperature Control
• The temperature control on all salad top units is located
in the rear of the unit, 14” to 16” above floor in access
hole.
• The factory setting for the control is 4.5 and maintains
about 34°F(1°C) to 36°F (2°C) inside the box.
• Set toward 1 for higher temperatures and set to a higher
number for lower temperatures.
Temperature Control Knob Access
Temperature Control Knob Access
Efficient Operation
• Cabinets with pans should be operated with pans in
place. Operating the cabinet without all pans in place
may damage the cabinet.
• Continuous opening and closing of the door will hamper
the cabinet’s ability to maintain optimum refrigeration
temperature.
• Top section is not intended for overnight storage. Product
should be removed from pans. Pans can remain in
cabinet while empty.
Defrost
The electronic temperature controller monitors evaporator
temperature and compressor run time to determine the
proper time for a positive defrost cycle. A defrost cycle
can occur as often as every 45 minutes under extremely
heavy usage. When the controller enters the defrost mode
the compressor is shut off and will remain off until the
evaporator coil temperature exceeds 41°F or the controller
reaches a time limit of 50 minutes. The defrost cycle can last
from a minimum of 2 minutes to a maximum of 50 minutes.
Evaporator Fan Operation
Salad and mega top refrigerator units under 60” wide have
one evaporator and one evaporator fan motor and blade.
60”, 64” and 72” wide units have one large evaporator and
two fan motors and blades. Both motors rotate in the same
direction and both have identical fan blades.
Cooling Cycle
Defrost Cycle
Compressor On
Compressor Off
Compressor Off
Evaporator Fan
Evaporator Fan
Evaporator Fan
On
On
On
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