Follett 12CI425A-LI Operation manual

1 12CI425A • 12HI425A
Operation and Service Manual
12CI425A-L
countertop dispenser
12CI425A-S
countertop dispenser with
SensorSAFE infrared dispensing
(shown with legs accessory)
12HI425A-S
wall mount dispenser
(available with or without
drain pan)
Following installation, please forward this manual
to the appropriate operations person.
Symphony Plus™12 Series
Ice and Water Dispensers
12CI425A-LI
countertop, ice-only
dispenser
12CI425A-SI countertop, ice-only
dispenser with SensorSAFE™
infrared dispensing
01033653R00
801 Church Lane • Easton, PA 18040, USA
Toll free [phone] • [phone]
www.follettice.com

2 12CI425A • 12HI425A
Contents
Welcome to Follett. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Before you begin.......................................................................... 3
Specications .............................................................................. 4
Electrical ................................................................................ 4
Ambient................................................................................. 4
Plumbing................................................................................ 4
Ventilation clearances...................................................................... 4
Dry weight............................................................................... 4
Installation ................................................................................. 5
Before you begin.......................................................................... 5
Installing countertop dispensers without legs.................................................... 5
Installing countertop dispensers with legs accessory ............................................. 6
Installing wall mount dispensers.............................................................. 6
User information ............................................................................ 9
How the dispenser works ................................................................... 9
Panel removal ........................................................................... 10
Cleaning/descaling and sanitizing ............................................................ 11
Weekly .................................................................................11
Monthly .................................................................................11
Semi-Annually (more often if conditions dictate) ................................................ 12
Service ................................................................................... 14
Ice machine operation (all models) .......................................................... 14
The icemaking process.................................................................... 14
Water system ........................................................................... 15
Wiring diagram .......................................................................... 18
Wiring diagram - Lever only ................................................................ 20
Wiring diagram - SensorSAFE only .......................................................... 21
Ice machine operational and diagnostic sequences ............................................. 22
Diagnostic stages ........................................................................ 27
Refrigeration pressure data ................................................................ 31
Compressor data ........................................................................ 31
Refrigeration system...................................................................... 32
Dispenser troubleshooting .................................................................. 33
Lever model troubleshooting guide .......................................................... 33
SensorSAFE model troubleshooting guide .................................................... 33
Disassembly and replacement instructions..................................................... 34
Fan removal ............................................................................ 38
Thermostat and ice transport tube replacement ................................................ 39
Replacement parts ......................................................................... 40
Dispenser exterior........................................................................ 40
Wheelmotor and drive system .............................................................. 41
Dispense chute and splash panel (models with lever dispensing) .................................. 42
Dispense chute and splash panel (models with SensorSAFE infrared dispensing) ..................... 43
Ice machine components .................................................................. 44
Electrical components .................................................................... 46
Compressor ............................................................................ 47
Evaporator replacement parts .............................................................. 48
Water supply and drains................................................................... 50
Water treatment accessories for Symphony Plus ice and water dispensers.......................... 51

12CI425A • 12HI425A 3
Welcome to Follett
Follett equipment enjoys a well-deserved reputation for excellent performance, long-term reliability and
outstanding after-the-sale support. To ensure that this equipment delivers that same degree of service, we ask
that you take a moment to review the installation portion of this manual before beginning to install the unit.
Our installation instructions are designed to help you achieve a trouble-free installation. Should you have any
questions or require technical help at any point, please call our technical service group at [phone] or
[phone].
Note: To expedite assistance, all correspondence or communication MUST include the model number, serial
number and complete and detailed explanation of the problem.
Before you begin
After uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If
damage is found, notify the shipper immediately and contact Follett Corporation so that we can help in the ling
of a claim, if necessary.
Check your paperwork to determine which model you have. Follett model numbers are designed to provide
information about the type and capacity of Follett ice dispensing equipment. Following is an explanation of the
different model numbers.
12CI425A-LI
I = ice-only; no water
Dispense actuation, L = lever, S = SensorSAFE
Condenser type, A = air-cooled
Ice machine capacity in lbs per day
Ice machine location, I = integral
Dispenser conguration, C = countertop, H = wall mount
Approximate storage capacity in lbs
CAUTION!
§Do not tilt any unit further than 30° off vertical during uncrating or installation.
§Dispenser bin area contains mechanical, moving parts. Keep hands and arms clear of this area at all times. If
access to this area is required, power to unit must be disconnected rst.
§Follett recommends a Follett water lter system be installed in the ice machine inlet water line (standard
capacity #00130229, high capacity #00978957, carbonless high capacity #01050442).
§Prior to operation, sanitize the dispenser in accordance with instructions found in this manual.
§Ice is slippery. Be sure counters and oors around dispenser are clean, dry and free of ice.
§Do not block right side air intake or top air exhaust.

4 12CI425A • 12HI425A
Specications
air exhaust
16.00 "
(40.7 cm)
4.00 "
(10.2 cm)
3/8 " FPT
water inlet
3/4 " MPT drain
23.5 "
(59.7 cm)
18.00 "
(45.8 cm)
32.00 "
(82.6 cm)
air
intake
Front View Side View Rear View
22.625 "
(57.5 cm)
power cord (NEMA 5-15)
Electrical
§115 V, 60 Hz, 1 phase, 11.0A
§Connect to a 15A dedicated circuit.
Ambient
Air temp* 100 F/38 C Max. 50 F/10 C Min. Best performance below 80 F (27 C)
Water temp†90 F/32 C Max. 45 F/4 C Min. Best performance below 70 F (21 C)
Water pressure 70 P.S.I./5Bar Max. 10 P.S.I./0.7 Bar Min.
* Ambient air temperature is measured at the air-cooled condenser coil inlet.
† Ambient water temperature is measured in the ice machine reservoir.
Plumbing
12CI425A 12HI425A
Dispenser drain 3/4" MPT 3/4" MPT
Water inlet 3/8" FNPT 3/8" FNPT
Note: Water shut-off recommended within 10 ft. (3 m) of dispenser. Drain to be hard-piped and insulated.
Maintain at least 1/4" per foot (20 mm per 1 m) run of slope.
Ventilation clearances
§6" (15.3 cm) on right side of dispenser, 6" (15.3 cm) at top for ventilation and 12" (30.5 cm) at top
recommended for service.
Note: Do not block right side air intake or top air exhaust.
Dry weight
§175 lb (79.4 kg)

12CI425A • 12HI425A 5
* Dow Corning is a registered trademark of Dow Corning Corporation in the United States and other countries.
Installation
Before you begin
§All dispensers must be installed level in both directions to ensure proper operation.
§Service and ventilation clearances: 6" (15.3 cm) on right side of dispenser, 6" (15.3 cm) at top for ventilation
and 12" (30.5 cm) at top recommended for service.
§Countertop units installed without legs provide the option of taking utilities out bottom or back of dispenser
(on wall mount units and countertop units with legs, utilities exit from back). See counter cutout drawings for
bottom exiting utilities on units with and without drain pans. For installations where utilities exit through back
of dispenser, refer to back view drawings.
§Wall mount models without drain pan are designed for use above sinks.
§Counter depth must allow front of sink to be a minimum of 30.00" (76.2 cm) from wall.
Installing countertop dispensers without
legs
1. Position dispenser in desired location,
mark dispenser outline on counter and
remove dispenser.
2. Regardless of whether utilities will exit
through back or bottom of dispenser, drill
four (4) 7/16" holes in counter to anchor
dispenser to counter (Fig. 1).
3. For utilities exiting through bottom
only:
(a) Make cut out as shown in
Fig. 1.
(b) Move drain tting from back of dispenser
and mount where shown in Fig.2.
(c) Cut drain tube to length and attach to
barbed connection.
(d) Move inlet water tting from back of
dispenser and mount where shown in
Fig.2.
(e) Cut water tubing to length and re-insert
into water tting.
4. For all units: Apply a thick bead
approximately 1/4" (6 mm) diameter of
NSF-listed silicone sealant (Dow Corning
RTV-732* or equivalent) 1/4" (6 mm)
inside marked outline of dispenser.
5. Carefully lower dispenser on counter in
proper position and secure to counter
with four (4) 3/8"-16UNC bolts.
6. Smooth excess sealant around outside of
dispenser.
Fig. 1
2.00"
(5.1 cm)
12.00"
(30.5 cm)
14.37"
(36.5 cm)
4X
Ø.437"
(11 mm)
hole 1.04"
(2.6 cm)
16.00"
(40.7 cm)
Cutout
connections
through
bottom
12.00"
(30.5 cm)
0.81"
(2.1 cm)
16.00"
(40.7 cm)
1.50"
(3.8 cm)
17.87"
(45.4 cm)
5.62"
(14.3 cm)
Fig. 2 - Bottom exiting utilities (countertop units)
bracket
inlet
tting
drain
tting
drain tube

6 12CI425A • 12HI425A
Installing countertop dispensers with legs accessory (P/N AF10LBLEGS)
CAUTION!
§Do not tilt any unit further than 30° off vertical plane.
§Countertop dispensers that sit on legs (not bolted to counter) can be inadvertently moved. Care should be
taken when operating and cleaning to avoid accidents.
1. Carefully tip dispenser back to expose
underside and block up in place.
2. Screw legs (shipped taped to drain pan
of dispenser) into dispenser bottom,
taking care to seat legs securely against
underside of dispenser.
3. Attach bottom panel and hardware to
bottom of dispenser with supplied screws
(Fig. 3).
4. Position unit in desired location and
adjust legs to level in both directions.
5. Make nal connections.
Fig. 3 - Bottom panel and leg assembly
bottom panel
screw
leg
Installing wall mount dispensers
CAUTION!
§WALL PREPARATION: Wall and fasteners must be of sufficient strength to carry weight of unit (185 lb
(83.9kg). Hardware for this is not included.
Notes:
§SensorSAFE infrared dispensing is standard.
1. Recommended minimum counter depth and mounting height shown on Fig. 6 ensures that ice will drop
into sink.
2. See Fig. 6 for model dimensions. The dimensions include the 0.5" (13 mm) mounting bracket supplied with
the unit.
3. Cut utility hole in wall as shown (Fig. 5).
4. Mount support bracket to wall using fasteners of sufficient strength (fasteners not included, see Fig.4).
5. Rough in water and drain lines (3/4" copper recommended for drain) (Fig. 9).
6. Lift dispenser onto support bracket, positioning unit so that hook on back of dispenser is captured by
support bracket angle (Fig. 6).
7. Install two (2) supplied 3/8"-16UNC screws through bottom of support bracket into bottom of dispenser
(Fig. 4). Slotted holes in support bracket allow you to adjust and level the dispenser. Ensure that the top of
dispenser is level or tilted slightly back toward the wall.
8. Remove bottom cover and make nal connections (Fig. 7).
9. Attach bottom panel and hardware to bottom of dispenser (Fig. 8).
10. Sanitize dispenser prior to use.

12CI425A • 12HI425A 7
Fig. 4 – Wall mount bracket and fastener requirements
support bracket
screw
wall mounting bracket
= Customer supplied.

8 12CI425A • 12HI425A
Fig. 5 – Wall-mount dimensions
ANCHOR POINTS
0.438" (11 mm)
CLEARANCE
FRONT VIEW
13.00" (33.0 cm)
16.00" TYP.
(40.6 cm)
2.88" (7.3 cm)
2.88" (7.3 cm)
13.50" (34.3 cm)
WALL CUTOUT
WALL STUDS
WALL MOUNT
BRACKET
1.08" (2.7 cm)
8.08" (20.5 cm)
15.08" (38.3 cm)
Fig. 6 – Wall mount side view
20.53" (52.2 cm)
18.51" (47.0 cm)
30.00" (76.2 cm)
MIN DISTANCE TO SINK FRONT
23.70"
(60.2 cm)
SUGGESTED POWER
CORD ROUTING
32.00" (81.3 cm)
CAUTION!
§Do not rest dispenser weight on bottom of support bracket. Dispenser weight to rest on top of the support
bracket (Fig. 6).
Fig. 7 – Wall mount unit bottom panel assembly
3/8” FNPT
Water
3/4” MNPT
Drain
BOTTOM VIEW
Fig. 8 – Wall mount unit bottom panel assembly
nut
support
bracket
screw
bottom panel

12CI425A • 12HI425A 9
Fig. 9 – Wall mount, utility location
FRONT VIEW
WALL MOUNT
BRACKET
3.70" (9.4 cm)
POTABLE WATER SUPPLY
3/8 COPPER TUBE
7.88" (20.0 cm)
DRAIN
3/4 COPPER TUBE 11.75" (29.9 cm)
POWER CORD EXIT
1.41" (3.6 cm)
0.92" (23 mm)
1.72" (4.4 cm)
WALL
CUTOUT
water and
drain tubing
(7.7 m)
MAX.
3.00"
WALL
SIDE VIEW UTILITIES EXITING WALL
User information
How the dispenser works
Follett’s 12 series automatic-load ice and water dispensers are equipped with Follett’s 425 lb (193 kg)/day ice
machine. In the continuous icemaking process, water freezes to the inside wall of the evaporator. A rotating
stainless steel auger carries the ice to the top of the evaporator where it is compressed and extruded through
an outlet port. The ice is then pushed through a tube to the storage hopper. When the hopper is full, a bin
thermostat opens and shuts the ice machine off. When the dispense mechanism is activated, a dispense motor
is turned on, causing the wheel to turn. This moves ice to the dispense chute where it drops by gravity into the
container held below the chute.
How SensorSAFE infrared dispensing works
Follett’s SensorSAFE infrared dispensing maximizes sanitation and minimizes the possibility of cross-
contamination by eliminating physical contact between the cup or container and dispenser. Sensors in the
panel use reected infrared light to detect the presence of the container and send a signal to a control board
which then activates the appropriate components for ice or water dispensing.
The SensorSAFE infrared dispensing package includes a cleaning switch under the left side of the front cover
which temporarily shuts off dispensing to allow cleaning of the panel and lenses. If the switch is not turned
back on after cleaning, the dispenser automatically resets after two minutes for normal operation.
SensorSAFE infrared dispensing also includes a time limit safety feature which automatically stops ice
dispensing after one minute of continuous dispensing. Dispensing can be resumed by moving the container
away from the dispenser and returning it to the activation zone.

10 12CI425A • 12HI425A
Panel removal
Fig. 10 Fig. 11
Top cover: Lift cover up and off Velcro strips. Front cover: Pull bottom of cover, then lift cover up
and forward to unhook from keyhole slots.
Fig. 12 Fig. 13
Splash panel: Remove 4 screws. Pull out bottom
of panel to allow top to slide out from under hopper
support lip.
Side panels: Remove screw located on lower rear
side. Pull side panel toward front of unit and out of
back panel. Note: Before removing right hand side,
remove side louver panel by lifting up and pulling
forward on panel.

12CI425A • 12HI425A 11
Cleaning/descaling and sanitizing
Follett ice machines and dispensers, and their associated cleaning and sanitizing procedures, are designed
for use with potable water sources. The presence, or suspected presence, of infectious agents may call
for additional measures, including the replacement of components and more comprehensive disinfection
measures. Follett recommends that these cleaning and sanitizing procedures be reviewed with the appropriate
infectious agent subject matter experts to assure complete remediation.
Periodic cleaning/descaling and sanitizing of Follett’s ice and water dispenser and ice machine system
is required to ensure peak performance and delivery of clean, sanitary ice. The recommended cleaning
procedures that follow should be performed at least as frequently as recommended and more often if
environmental conditions dictate.
Cleaning of the condenser can usually be performed by facility personnel. Cleaning/descaling and sanitizing of
the ice machine system should be performed by your facility’s trained maintenance staff or a Follett authorized
service agent. Regardless of who performs the cleaning, it is the operator’s responsibility to see that this
cleaning is performed according to the schedule below. Service problems resulting from lack of preventive
maintenance will not be covered under the Follett warranty.
Recommended cleaning/descaling and sanitizing intervals*
Symphony Plus Frequency
Drain Line weekly
Drain Pan/Drip Pan weekly
Exterior as needed
Condenser monthly (air-cooled only)
Dispenser and Components semi-annually
Ice Machine semi-annually
Transport Tube semi-annually
Ice Storage Area/Bin semi-annually
* Ice machine and dispenser must be cleaned and sanitized prior to start-up.
Weekly
CAUTION!
§Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser.
Dispenser drain pan and drain line
§Pour 1 gal. (3.8 L) of hot tap water into drain pan to ush drains.
Splash panel front, SensorSAFE infrared dispensing
1. Deactivate dispensing by pressing and releasing clean switch located on left side of unit under top
front cover.
2. Clean lens and splash panel front using a soft cloth and mild, non-abrasive, non-chlorine based
cleaner.
3. Reactivate dispensing by pressing and releasing clean switch again.
Monthly
CAUTION!
§Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser.
Condenser (air-cooled ice machine only)
1. Use a vacuum cleaner or stiff brush to carefully clean condenser coils of lint and debris to ensure
optimal performance.
Semi-Annually (more often if conditions dictate)
§A cleaning/descaling and sanitizing procedure should always include both the ice machine and dispenser.
§Icemaking system can be cleaned/descaled in place.

12 12CI425A • 12HI425A
CAUTION!
§Wear rubber gloves and safety goggles (or face shield) when handling cleaner or sanitizer mixtures.
§Use only Follett approved cleaners.
§It is a violation of Federal law to use Solution A or Solution B in a manner inconsistent with their labeling.
§Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser.
Cleaning Solution: Mix cleaning solution of 1 gal. (3.8 L) 100 F (38 C) water and 7 oz (198 g) (one 7 oz
packet) of Follett SafeCLEAN ice machine cleaner/descaler (P/N 00132001).
Sanitizing Solution:Mix a sanitizing solution of 1 gal. (3.8 L) 100 F (38 C) water and 1.6 oz (47 ml) Nu-Calgon
IMS-II Sanitizer (P/N 00979674).
Cleaning & sanitizing tool checklist
§(2) 1.5 Gallon (or larger) Plastic Buckets
§(2) clean cloths
§Sanitary gloves
§Safety glasses
§(2) Sani-Sponge™ (P/N 00131524 - single sponge)
§(1 ) Packet of SafeCLEAN™ (P/N 00132001 - 24 packets)
§1.6  oz of Nu-Calgon IMS-II Sanitizer (P/N 00979674 - 16 . oz bottle)
Cleaning/descaling procedure
Note: Check drains and drain cup to ensure they are open and owing freely.
1. If ice machine was running recently, ensure that the evaporator is completely free of ice before
proceeding. If there is ice in the evaporator, complete steps 2-7 using only hot water to remove the ice
then begin Cleaning/Descaling Procedure again.
2. Remove front cover and turn OFF bin signal switch.
3. Dispense all ice from storage hopper and discard.
4. Remove top of machine and hopper lid.
5. Press CLEAN switch. The MAINTENANCE light will turn on and the machine will drain. Wait for the
LOW WATER light to turn on.
6. Remove lid from cleaning cup and ll (about 1 quart) until cleaning solution overows from the ice
transport tube into the hopper. Place lid back on cup. Save remainder of cleaning solution.
7. CLEANER FULL light will turn on and machine will start cleaning cycle then rinse three times; this
process takes approximately 15 minutes.
8. While ice machine is cleaning/descaling, clean dispenser as follows:
a. Remove center thumbscrew, locking plate, two wingnuts and backing plate from front of storage hopper.
b. Remove stud assembly, baffle, wheel, and any remaining ice.
c. Remove dispense chutes from splash panel.
d. Submerse drain grille in cleaning solution and allow to soak to remove any scale buildup.
e. Wipe stud assembly, baffle, wheel, inside of storage area, dispense chutes, drain grille and drain pan
with damp cloth wrung out in cleaning solution. Thoroughly rinse all parts with damp cloth wrung out
with clean water.
Note: To avoid possible damage to motor assembly, only use a damp cloth to clean storage hopper. Do
not allow water to run through motor shaft hole in bottom of hopper.
9. When machine is nished cleaning, the MAINTENANCE light will turn off.

12CI425A • 12HI425A 13
Sanitizing procedure
10. Press CLEAN switch. The MAINTENANCE light and LOW WATER light will turn on.
11. Fill cleaning cup with sanitizing solution until it overows from the ice transport tube into the hopper.
Place lid back on cup. Save remainder of sanitizing solution.
12. CLEANER FULL light will turn on and machine will start sanitizing cycle then rinse three times; this
process takes approximately 15 minutes.
13. While ice machine is sanitizing, sanitize dispenser as follows:
a. Wipe inside of hopper lid, stud assembly, baffle, wheel, inside of storage area, dispense chutes, drain
grille and drain pan with damp cloth wrung out in sanitizing solution.
Note: To avoid possible damage to motor assembly, only use a damp cloth to clean storage hopper. Do
not allow water to run through motor shaft hole in bottom of hopper.
b. Reinstall dispense chutes, wheel, baffle, stud assembly, backing plate, two wing nuts, locking plate, and
thumbscrew. (See manual for correct baffle position.)
14. When machine is nished rinsing, the MAINTENANCE light will turn off. Remove top bearing
insulation and compression nozzle insulation. Loosen Phillips-head screw on nozzle connected
to evaporator. Remove nozzle from evaporator side only, leave other side of nozzle connected to
transport tube.
15. Place one Sani-Sponge in remaining sanitizing solution.
16. Insert the sponge soaked in sanitizing solution into nozzle then insert a dry sponge into the nozzle.
1 7. Replace nozzle onto evaporator and tighten screw. Ensure drain is connected to reservoir and vent
tubes are connected to evaporator drain pan.
18. Turn ON bin signal switch. Wait for ice to push sponges through transport tube.
19. Collect sponges from ice storage bin.
20. Replace hopper lid, machine top, and install front cover.
2 1. After 10 minutes, dispense all ice and discard.

14 12CI425A • 12HI425A
Service
Ice machine operation (all models)
Follett’s ice machine consists of four distinct functional systems:
§Harvesting system
§Refrigeration system
§Water system
§Electrical control system
These four systems work together to accomplish the production and harvesting of ice. A problem in any one of
these systems will result in improper operation of the entire ice production cycle. When troubleshooting the ice
machine, it is important to analyze the entire system operation to determine which system is not functioning
properly, then pinpoint the component within that system that is malfunctioning. Determine what corrective
action must be taken before making any adjustments or replacing any components.
The icemaking process
The Maestro Plus ice machine uses a stainless steel jacketed evaporator and operates on a continuous
freezing cycle. Water is supplied to the evaporator from the water reservoir where the water level is controlled
by conductivity probes.
When the ice machine is running, a layer of ice forms on the interior surface of the evaporator. This ice is
continuously removed by a slowly rotating (12RPM) auger. The auger carries the ice upward into the cavity
formed by the top bearing housing and the compression loop, where it is compressed to remove excess water.
When the ice reaches the desired hardness it rotates within the cavity and is forced through a discharge port
and compression nozzle and into the ice transport tube. The discharge tube and compression nozzle are
slightly restricted to further compress the ice and produce the desired hardness.
A solid state control board located in the electrical box of the ice machine controls the normal operation of the
ice machine and monitors gearmotor torque. This control board will shut down the ice machine should an over-
torque condition occur. It is very important that you familiarize yourself with the operational sequences detailed
in this manual before attempting to service the ice machine.
water
inlet
auger
compression nozzle
ice transport tube
evaporator
port

12CI425A • 12HI425A 15
Water system
The water level in the evaporator is controlled by a ll solenoid (Fig. 14) and level detecting sensors. Water
sensing rods (Fig. 15) extend down into the reservoir at the end of the evaporator assembly. The system works
via electrical conductivity as follows:
One of the longest probes is a common. When water is between any of the other probes and the common,
the PC board will sense the activation. During normal operation, the water level rises and falls between the
Normal High and Normal Low sensors. As water is consumed to make ice, the level will fall until the Normal
Low sensor is exposed, triggering the water feed solenoid on. Water will ll until the Normal High sensor is
activated.
Note: The potable water dissolved solids content must be greater than 10 ppm for the water control system to
function properly. If using reverse osmosis water ltration system, ensure T.D.S level is greater than 10
ppm.
Fig. 14 – Water system diagram
CLEANING CUP
WATER SUPPLY
3/8" FPT, 45-90 F (7-32 C)
10-70 PSI (69-483 KPA)
RESERVOIR FILL
SOLENOID
WATER
RESERVOIR
EVAPORATOR
ICE
NOZZLE
DRAIN PAN
VENT
TO DRAIN CUP

16 12CI425A • 12HI425A
Fig. 15 – Water level diagram
1 3
2
4
1 COMMON
2 HIGH
3 ALARM LOW
4 LOW NORMAL OPERATING RANGE
Access to electrical box and control board
The 12 series electrical box has been designed to slide out for easy access to the control board and more
convenient troubleshooting.
1. Remove top and front panels of dispenser
(for panel removal instructions see
page10).
2. Remove electrical box cover.
3. Pull electrical box toward front of unit.
Fig. 16
electrical box
electrical
cover

12CI425A • 12HI425A 17
Control board DIP switch settings
Sleep cycle dispense duration
OFF ON
12345678
4 5 4 5 4 5 4 5
35 s
15 s
5 s
60 s
Sleep cycle
enabled
Not used
Sleep cycle
dispense duration
60 min. time delay
Flush enabled
Maint. timer OFF
OFF ON
Sleep cycle
disabled
Not used
Sleep cycle
dispense duration
20 min. time delay
Flush disabled
Maint. timer ON
12345678
OFF POSITION ON POSITION

18 12CI425A • 12HI425A
Wiring diagram
WATER LEVELS
P17 BINP12 CLEAN SAFEP11
POWER
LOW BIN
MAKING ICE
SLEEP CYCLE
TIME DELAY
LOW WATER
MAINTENANCE
SERVICE
HI AMPS
HI PRESSURE
CLEANER FULL
RESERVOIR
WATER SENSOR
MAINT.
CLEAN
HI PRS
P14
HIGH
PRESS
P
L1
GND
L2/N
BIN LEVEL
T-STAT
A B C D
BLACK
YELLOW
ORANGE
RED
BIN SIGNAL
SWITCH
MOUNTED ON
SPLASH PANEL
SOL
WTR
NEUTRAL
COMPONENTS
SENSOR
WATER SENSOR
ICE
CLN
WM
PWR
WTR
L1
GND
ICE
WHITE
BLUE
BISON GEARMOTOR
START
RELAY
3
42
YELLOW
BLACK
T.O.L.
START
RUN
FAN
FEED VALVE
DRAIN VALVE
RED #16 BROWN #14 BLACK #36 BLUE #07
GRN #17
GRN #27
BLACK #51
BLACK #23
BLACK #18
BLACK #21 WHITE #22
BLACK #25
GRN #20
BLACK #23 WHITE #26 BLACK #25 BLACK #24 BLACK #38 BLACK #39
GND TO
MAIN FRAME
POWER SWITCH
BLACK #51 WHITE #52
COMP.
R
C
S
O.L.
C2 START
1 2 3 4 5 6 7 8 9
GREEN #53
COMPRESSOR
COMPRESSOR
ELECTRICAL
BOX
BLACK #51
WHITE #52
GREEN #53
RED #54
ORANGE #55 BLACK #56
GREEN #57
BLACK #58
BLACK #59
LEVER ONLY
SENSORSAFE ONLY
BLACK #24
BLACK #25
BLACK #24
BLACK #21 (SENSORSAFE)
BLACK #25 (LEVER)
CLEAN SWITCH
4
1
6
41
2
5
BLACK #61
WHITE #62
GREEN #63
WHITE #64
BLACK #65 BLACK #66
GREEN #67
BLACK #68 BLACK #69
C1 RUN
WHEELMOTOR
M
COMPONENTS
MOUNTED ON
MAIN FRAME
41
BLACK #33BLACK #41
S
BLACK #32
WHITE #34
WATER
DISPENSE
SOLENOID
BLACK #28
BLACK #31
41
BLACK #29
41
BLACK #30
LEVER ONLY
WHITE #05 WHITE #35 WHITE #13 WHITE #15
SENSORSAFE ONLY
BLACK #66
BLACK #69
BLACK #71
MODEL SELECT
SERIAL COMM
COMPRESSOR
AUGER
WATER LEVELS
HI PRS
BIN RS485
RS485 UI
CURRENT SENS
RESET
PROGRAM
P5
ICE AUX WATER AUX
D9
D8
D7
D6
D5
D4
D37
D3
D2
D18
D16
D15
D14
D13
D12
D11
D10
D1
T1
P18
P11 P13
P17
P12
P14
P16
P15
P4
T2
S1
S2
K1
P7
P8
P10
K3
1
26
5
P9
L1 L1L1
N N N N N N N N N
P2
P1
P21
P20
P19
P3
BLACK #01
P6
P22
D19D22D21D20
D17
D48
WATER STATION
SWITCH
ICE STATION
SWITCH
COVER
INTERLOCK
SWITCH
BLACK #19
BLACK #19
BLACK #23
WHITE #22
WHITE #26
BLACK #23
WHITE #22
WHITE #26
BLACK #24
BLACK #24
BLACK
BLACK

12CI425A • 12HI425A 19
WATER LEVELS
P17 BINP12 CLEAN SAFEP11
POWER
LOW BIN
MAKING ICE
SLEEP CYCLE
TIME DELAY
LOW WATER
MAINTENANCE
SERVICE
HI AMPS
HI PRESSURE
CLEANER FULL
RESERVOIR
WATER SENSOR
MAINT.
CLEAN
HI PRS
P14
HIGH
PRESS
P
L1
GND
L2/N
BIN LEVEL
T-STAT
A B C D
BLACK
YELLOW
ORANGE
RED
BIN SIGNAL
SWITCH
MOUNTED ON
SPLASH PANEL
SOL
WTR
NEUTRAL
COMPONENTS
SENSOR
WATER SENSOR
ICE
CLN
WM
PWR
WTR
L1
GND
ICE
WHITE
BLUE
BISON GEARMOTOR
START
RELAY
3
42
YELLOW
BLACK
T.O.L.
START
RUN
FAN
FEED VALVE
DRAIN VALVE
RED #16 BROWN #14 BLACK #36 BLUE #07
GRN #17
GRN #27
BLACK #51
BLACK #23
BLACK #18
BLACK #21 WHITE #22
BLACK #25
GRN #20
BLACK #23 WHITE #26 BLACK #25 BLACK #24 BLACK #38 BLACK #39
GND TO
MAIN FRAME
POWER SWITCH
BLACK #51 WHITE #52
COMP.
R
C
S
O.L.
C2 START
1 2 3 4 5 6 7 8 9
GREEN #53
COMPRESSOR
COMPRESSOR
ELECTRICAL
BOX
BLACK #51
WHITE #52
GREEN #53
RED #54
ORANGE #55 BLACK #56
GREEN #57
BLACK #58
BLACK #59
LEVER ONLY
SENSORSAFE ONLY
BLACK #24
BLACK #25
BLACK #24
BLACK #21 (SENSORSAFE)
BLACK #25 (LEVER)
CLEAN SWITCH
4
1
6
41
2
5
BLACK #61
WHITE #62
GREEN #63
WHITE #64
BLACK #65 BLACK #66
GREEN #67
BLACK #68 BLACK #69
C1 RUN
WHEELMOTOR
M
COMPONENTS
MOUNTED ON
MAIN FRAME
41
BLACK #33BLACK #41
S
BLACK #32
WHITE #34
WATER
DISPENSE
SOLENOID
BLACK #28
BLACK #31
41
BLACK #29
41
BLACK #30
LEVER ONLY
WHITE #05 WHITE #35 WHITE #13 WHITE #15
SENSORSAFE ONLY
BLACK #66
BLACK #69
BLACK #71
MODEL SELECT
SERIAL COMM
COMPRESSOR
AUGER
WATER LEVELS
HI PRS
BIN RS485
RS485 UI
CURRENT SENS
RESET
PROGRAM
P5
ICE AUX WATER AUX
D9
D8
D7
D6
D5
D4
D37
D3
D2
D18
D16
D15
D14
D13
D12
D11
D10
D1
T1
P18
P11 P13
P17
P12
P14
P16
P15
P4
T2
S1
S2
K1
P7
P8
P10
K3
1
26
5
P9
L1 L1L1
N N N N N N N N N
P2
P1
P21
P20
P19
P3
BLACK #01
P6
P22
D19D22D21D20
D17
D48
WATER STATION
SWITCH
ICE STATION
SWITCH
COVER
INTERLOCK
SWITCH
BLACK #19
BLACK #19
BLACK #23
WHITE #22
WHITE #26
BLACK #23
WHITE #22
WHITE #26
BLACK #24
BLACK #24
BLACK
BLACK

20 12CI425A • 12HI425A
Wiring diagram - Lever only
L1
GND
L2/N
MOUNTED ON
SPLASH PANEL
COMPONENTS
GRN #27
BLACK #25
BLACK #23 WHITE #26 BLACK #25 BLACK #24
GND TO
MAIN FRAME
POWER SWITCH
WHEELMOTOR
M
COMPONENTS
MOUNTED ON
MAIN FRAME
41
BLACK #33
BLACK #41
S
BLACK #32
WHITE #34
WATER
DISPENSE
SOLENOID
BLACK #28
BLACK #31
41
BLACK #29
41
BLACK #30
LEVER ONLY
WATER STATION
SWITCH
ICE STATION
SWITCH
COVER
INTERLOCK
SWITCH
BLACK #19
BLACK #23 WHITE #26
BLACK #24