Operation; Maintenance; Defrosting; Door Maintenance - Delfield 403 Service And Installation Manual

Operation

After the unit is connected to power 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) on
refrigerators or 0°F (-18°C) on freezers in about one hour.
Temperature in 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. The temperature control, located on the back
panel inside the refrigerator, can be adjusted to meet the
current conditions.
Temperature control instruction
Refrigerators: A thermostat located in the evaporator
housing on interior rear of the unit, controls the temperature
in the box. The factory setting for the control is "4" and
maintains about 38°F (3°C) in the box. Set toward "1" for
higher temperatures and toward "7" for lower temperatures.
Freezers: A thermostat located in the evaporator housing

Door Maintenance

Adjusting door hinges
Doors have been adjusted at the factory. If it becomes necessary to adjust a Doors have been adjusted at the factory. If it becomes necessary to adjust a
door, follow these instructions:
1) If the door needs lowering at the handle, use a 5/16" wrench to loosen the hinge 1) If the door needs lowering at the handle, use a 5/16" wrench to loosen the hinge
screws and install a spacer outside of the hinge (see illustration 1). Tighten the screws and install a spacer outside of the hinge (see illustration 1). Tighten the
screws.
2) If the door needs to be higher at the handle, use a 5/16" wrench to loosen 2) If the door needs to be higher at the handle, use a 5/16" wrench to loosen
the hinge screws and install a spacer inside of the hinge (see illustration 2). the hinge screws and install a spacer inside of the hinge (see illustration 2).
Tighten the screws.

Defrosting

Refrigerators
Refrigerators defrost automatically with every cycle of the
compressor. The water generated is routed to a pan on the
rear of the unit and is evaporated by the heat given off by
the compressor.
on interior rear of the unit, controls the temperature in the
box. The factory setting for the control is "4" and maintains
about -3°F (-18°C) in the box. Set toward "1" for higher
temperatures and toward "7" for lower temperatures.
Units with pans should be operated with pans in
place. Operating the unit without all pans in place
will lessen efficiency of the unit and may damage
the unit.
Continuous opening and closing of the doors will hamper the
unit'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 unit while
empty.
Freezers
When defrost control goes into defrost, power to the
condensing unit and evaporator fans is interrupted and the
defrost heater is energized. The defrost heater warms the
evaporator coil thereby melting all frost accumulated during
the previous refrigeration cycle. Once all frost is eliminated,
the temperature of the coil continues to rise until it reaches
27 minutes. The defrost control switches to refrigeration
mode. Defrost will initiate every six hours.
For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfield.com
Compact Refrigerators and Freezers Service and Installation Manual
Illustration 1:
spacer outside
Turn the screw ONLY in a clockwise direction,
turning the screw counter-clockwise will break
the cam motor.
Illustration 2:
spacer inside
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