P/N 3141959_C 3-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
FNGSC-A Self Contained Merchandisers
CONTROLLER OPERATION
The electronic controller is located in the
cassette compartment.
The controller comes factory set, and is ready
for use. The front grille must be removed in
order to access this control. When removing
the grille for this operation or for condenser
cleaning, care must be taken not to damage the
display interface cable. It may be unplugged
during this task.
1. Plug the merchandiser plug into its receptacle.
a. The controller display will illuminate.
b. The interior light will illuminate.
2. After the control preprogrammed time
delay of up to 6 minutes, the compressor and
evaporator fan(s) will start if the control is
calling for cooling.
3. The control will cycle the compressor but
may also cycle evaporator fan(s) on and off
determined by the setpoint and differential
temperatures.
a. The setpoint is the adjustable
preprogrammed temperature.
b. The differential is the non-adjustable
pre-programmed temperature.
c. The control is designed to read and
display a cabinet temperature not a
product temperature.
This cabinet temperature may reect the
refrigeration cycle of the setpoint and it’s
differential. The most accurate temperature on
a cabinets operation is to verify the product
temperature.
Controller Electrical Box
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