Jenn-Air JB36NXFXLW00 Technical Education page 41

LOW VOLTAGE STORAGE BIN CONTROL
BOARD
There are two storage bin control boards on
Bottom Mount Models and only one on SXS.
storage bin boards get 14 VDC power from the
Main Control Board board.
The Storage bin control provides the following
functions:
• Communicate with one ingredient care center
pan each.
• Each provides 14 volts DC to an ingredient
care center pan to operate the LED lighting
and keypad.
• Controls the operation of the motorized air
baffle for each ingredient care center pan.
The controls communicate and work together
to provide proper function. The Storage bin
control operates the ingredient care center pan
LED lighting but it does not get direct input on
the position of the refrigerator door switches.
In order to operate the LED pan lighting at
the proper time, the main control monitors the
refrigerator door switches and sends a com-
munication on the data line to let the Storage
bin control know when a refrigerator door is
opened.
Ingredient Care Center
Temperature Control
The control monitors the temperature of each
ingredient care center pan by means of a
thermistor located in the top of each pan.
When cooling is needed the Storage bin control
sends a request to the main control board to
operate the evaporator fan motor. The Storage
bin control board does not have direct control
of the evaporator fan motor. The Storage bin
control also sends a 12 vdc, peak to peak
square wave to the ingredient care center air
door to open the door.
The ingredient care center air door will be in
one of five possible positions based on the
ingredient care center user setting.
The air door will close at any setting when the
proper temperature has been reached. Here are
the four possible positions and temperatures
for each setting.
• Closed.
- When the refrigerator compartment is call-
ing for cooling and the freezer is satisfied.
This allows the refrigerator to cool faster.
- Any setting when proper pan temperature
has been achieved.
- When the refrigerator is in holiday mode.
- When the refrigerator is in defrost mode.
• Deli—40 °F, open at a 10° angle.
• Produce—39 °F, open at a 20° angle.
• Meats—33 °F, open at a 30° angle.
• Quick Chill—25
When Quick Chill is selected, the pan
temperature is set to 25°F, and the freezer
temperature is set to –5°F, for one hour. The
evaporator fan motor operates and runs
at high speed until the set temperature is
reached. When the hour has timed out, the
ingredient care center user interface and
the freezer temperature both return to the
previous customer settings.
Note: The temperatures listed are represen-
tative of what the software program
is set to achieve. Ambient conditions,
food loads and usage will affect actual
temperature.
3-7
°F, open at a 45° angle.