Stoelting F431 Service Manual page 22

A. Main Freezer Power Switch
The Main Freezer Power switch is a two position rocker
switch that supplies power to the IntelliTec control, freezing
cylinder circuits and lower cabinet refrigeration system.
When the switch is placed in the ON position, the lower
cabinet refrigeration system will run until the preset tem-
perature is reached; then cycle ON and OFF to maintain
that temperature. Power to individual freezing cylinders
can then be controlled with the Freezing Cylinder OFF/
ON switches.
B. Freezing Cylinder OFF/ON Switch
The Freezing Cylinder OFF/ON switches are two posi-
tion toggle switches used to supply power to the left or
right freezing cylinder control circuit. When the switch is
in the OFF position, the refrigeration system and auger
will not operate. When the switch is in the ON position,
the machine will be operational.
C. Spigot Switch
The spigot switch is mounted to the spigot cam assembly
behind the header panel. When the spigot is opened to
dispense product, the spigot switch opens and the "Serve
Mode" begins.
D. Cab Off Indicator Light
A fl ashing light indicates the Main Freezer Power Switch
is in the OFF position; no refrigeration is being supplied
to the cab. Place the Main Freezer Power switch in the
ON position for cab refrigeration.
E. Pump Switch
The pump motor switches are the two rocker switches
located in the upper left-hand side of the refrigerated
cab. When a switch is placed in the OFF position, the
pump will not run. When the switch is placed in the ON
position, the pump will run until the preset pressure is
reached, then cycle on and off as product is drawn to
maintain that pressure.
F. Push To Freeze Button
The PUSH TO FREEZE button is a membrane or "snap"
switch used to initiate "Serve Mode".
After the PUSH TO FREEZE button is pressed,
the drive motor starts. After a 3-second delay, the
compressor will start.
G. LEDs
The membrane switch (touchpad) features two lights; a
green LED and an amber LED. The green LED is lit dur-
ing "Serve Mode". During freeze down, it is not lit. When
product consistency approaches 75% in the freezing
cylinder, the green LED fl ashes. The amber LED is on
during all other modes. In the event of an error or when
the freezing cylinder is off, both LEDs alternatively fl ash.
NOTE
H. Clean Button
The CLEAN button is a membrane, or "snap" switch. When
the button is pressed, the freezing cycle stops and the
drive motor will start. A CLEAN message will display on
the LCD screen along with a 5-minute countdown timer.
If the button is pressed again, the timer will reset. To
exit the CLEAN mode, turn the Freezing Cylinder OFF/
ON switch to the OFF position. If the machine is left in
CLEAN for more than 20 minutes, an error code (E4) will
be displayed on the display panel. Place the Freezing
Cylinder OFF/ON switch in the OFF position and back
in the ON position to clear this error.
I. Mix Low Light Indicator
A MIX LOW message will appear on the LCD display to
alert the operator of a low mix condition. The message
will display when there is approximately one gallon of
mix left in the mix container or when one bag of the
Bag Connection System (BCS) is empty. When the MIX
LOW message is displayed, refi ll container or replace
bag immediately.
J. Dispense Rate Adjusters
The dispense rate adjuster limits the opening of the spigot.
To adjust product dispense rate, turn the adjusting knob
clockwise for slower fl ow and counterclockwise for faster
fl ow. It takes at least fi ve complete turns of the adjusting
knob to make a noticeable difference in the dispense rate.
K. High Head Pressure Cutout
If the head pressure exceeds 445 psig (28 bar), the high
head pressure cutout will trip. It will automatically reset
after about 10-15 minutes.
L. Front Door Safety Switch
The front door safety switch prevents the auger from
turning when the front door is removed. The switch is
open when the door is removed and closed when the
door is properly installed.
M. Menu Navigation Buttons
The Menu Navigation Buttons allow the user to display
information regarding the machine's status of operation
as well as adjust product consistency (Fig. 3-2).
Figure 3-2 IntelliTec Control
14