Follett 12 Series Setup guide

Installation, Operation and Service Manual
00124438R03
C/E12CI400A
countertop dispenser
C/E12CI400A
countertop dispenser with
SensorSAFE™actuation
(shown with legs accessory)
C/E12HI400A
wall mount dispenser (available
with or without drain pan)
Following installation, please forward this manual
to the appropriate operations person.
801 Church Lane • Easton, PA 18040, USA
[phone] • Fax [phone] • www.follettice.com
12 Series - 220V 60Hz/230V 50Hz
Ice and Water Dispensers
Order parts online
www.follettice.com

2
Table of contents
Follett Corporation
Equipment Return Policy
Follett equipment may be returned for credit under the following conditions:
1. The equipment is new and unused.
2. A return authorization number has been issued by customer service within 30 days after shipment.
3. Follett receives the equipment at the factory in Easton, PA within 30 days after issuance of the return authorization number.
4. The equipment must be returned in Follett packaging. If the packaging has been damaged or discarded, Follett will forward, at the customer’s expense,
new packaging.
Note: Return freight charges are the responsibility of the customer. If equipment is returned and is damaged because of improper packaging, Follett
Corporation will not be held responsible.
Credit will be issued when:
The equipment has been inspected by Follett and deemed suitable to be returned to stock.
Note: A 15% restocking charge will be deducted from the credit. If the cost to return the product to stock exceeds 15%, the actual cost will be deducted.
Welcome to Follett Corporation
Important cautions
Specications
Installation
Installing countertop dispensers without legs
Installing countertop dispenser with legs accessory
Installing wall mount dispensers
User information
Cleaning and sanitizing procedures
Dispenser cleaning
Icemaker cleaning and sanitizing
Start-up following cleaning
Service information
Wiring diagram – lever model
Wiring diagram – SensorSAFE model
Icemaker operational and diagnostic sequences
Refrigeration cycle diagram
Icemaker capacity chart
Icemaker data
Refrigeration system data and requirements
Dispenser troubleshooting – lever models
Dispenser troubleshooting – SensorSAFE models
Icemaker troubleshooting
Disassembly and replacement instructions
Replacement parts
3
3
4
5
5
6
7
10
10
10
11
12
13
14
15
16
21
22
22
23
24
25
26
28
32

3
Important cautions
• Do NOT tilt any unit farther than 30° off vertical plane 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 installation of an activated carbon lter in icemaker inlet water line.
• Ice is slippery. Maintain counters and oors around dispenser in a clean and ice-free condition.
• Ice is food. Follow recommended cleaning instructions to maintain cleanliness of delivered ice.
• Do not block right side air intake or top air exhaust.
• Keep ventilation openings in the appliance enclosure or in the built-in structure clear of obstruction.
• Do NOT use mechanical devices or other means to accelerate the defrosting process.
• To avoid a hazard due to instability of the appliance it must be xed according to instructions.
• The appliance must be positioned so the plug is accessible.
• If the cord is damaged it must be replaced by special service agent.
!
E12CI400A
Condenser type, A = air-cooled
Icemaker capacity in lbs per day
Icemaker location, I = integral
Dispenser conguration, C = countertop, H = wall mount
Approximate storage capacity in lbs
Alternate voltage – C = 220V 60Hz
– E = 230V 50Hz
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 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 time, please call our technical service group at [phone].
Before you begin
After uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If
damage is found, notify your shipper immediately and contact Follett Corporation for help in ling a claim, if
necessary.
Check your paperwork to determine which model dispenser 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 model numbers.

Electrical
220V 60Hz, 1 phase, 6.5 amps
230V 50Hz, 1 phase, 6.5 amps
Furnished with 1.8m (6 ft) power cord.
Ambient
Air temp 38 C/100 F Max. 10 C/50 F Min. (Best performance below 80 F/27 C)
Water temp 32 C/90 F Max. 4 C/40 F Min. (Best performance below 70 F/21 C)
Water pressure 5Bar Max./70 P.S.I. .7 Bar/10 P.S.I. Min.
Plumbing
C/E12CI400A C/E12HI400A
Dispenser drain 3/4" FPT 3/4" FPT
Water inlet 3/8" FPT 3/8" FPT
Note: Water shut-off recommended within 3m (10 ft) of dispenser. Drain to be hard-piped and insulated. Maintain
at least 20mm per 1m run (1/4" per foot) of slope.
Ventilation clearances
6" (153mm) on right side of dispenser, 6" (153mm) at top for ventilation and 12" (305mm) at top recommended for
service.
Note: Do not block right side air intake or top air exhaust.
Dry weight
79.4kg (175 lbs)
DRAIN
ICEMACHINE
MAKE-UPWATER
Dispenser front view Dispenser side view
Specications
Dispenser rear view
Air
intake
air exhaust
air
intake
power cord
3/4" FPT drain
3/8" FPT
water inlet
407mm
(16")
575mm
(22.625")
826mm
(32.5")
102mm
(4")
458mm
(18")
597mm
(23.5")
4

5
Installing countertop dispensers without legs
cutout for
connections
through
bottom
404mm
458mm
(4")
39mm (1.5")
305mm
305mm
366mm
(16")
21mm (0.8")
51mm (2")
407mm
(14.4")
(12")
(12")
(15.9")
(18")
102mm
26mm (1")
12mm (.437")
diameter
Fig. 1 – Counter information
Before you begin
• All dispensers must be installed level in both directions to ensure proper operation.
• Service and ventilation clearances: 153mm (6") on right side of dispenser, 153mm (6") at top for ventilation
and 305mm (12") 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 cut out 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 597mm (23.5") from wall.
Installation procedures
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 7/16" holes in counter to
anchor dispenser to counter (Fig. 1).
3. For utilities existing through bottom
only:
(a) Make cut out as shown in
Fig. 1.
(b) Move plug from drain T to
back of unit (Fig. 2).
4. For all units: Apply a thick bead
approximately 6mm (1/4") diameter
of NSF listed silicone sealant
(Dow Corning RTV-732 or equivalent)
6mm (1/4") inside marked outline of
dispenser.
5. Carefully lower dispenser on counter in
proper position and secure to counter
with four (4) 3/8" -16NC bolts.
6. Smooth excess sealant around outside
of dispenser.

COUNTER TOP DISPENSER WITH LEGS
DRAIN
ICE MACHINE
MAKE-UP WATER
10mm (3/8") FPT
water inlet
19mm (3/4")
FPT drain
power cord
Fig. 3 – Rear exiting utilities
(countertop units)
19mm (3/4") FPT drain
Pipe plug may be moved to back
of unit for alternate drain hook up
10mm (3/8") push-in
water inlet elbow
Poly tubing and elbow may be
removed for alternate water inlet
hook up by pushing in on the
locking collar while pulling out on
the tubing.
bottom
panel
screw
leg
Fig. 2 – Bottom exiting utilities
(countertop units)
Fig. 4 – Bottom panel assembly
Installing countertop dispensers
with legs accessory
1. Carefully tip dispenser back to expose underside and
block up in place.
Note: Do NOT tilt unit farther than 30° off vertical plane.
2. Screw legs (shipped taped to drain pan of dispenser)
into dispenser bottom, taking care to seat legs securely
against underside of dispenser.
Note: 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.
3. Attach bottom panel and hardware to bottom of
dispenser with supplied screws (Fig. 4).
4. Position unit in desired location and adjust bullets on
legs to level in both directions.
5. Make nal connections.
407mm (16")
298mm
(11.7" )
206mm
(8.1")
39mm
(1.5")
23mm (.9")
6

7
Installing wall mount dispensers
Notes:
No drain pan is provided since the dispenser is intended to be installed above a sink. (Contact Follett if a drain pan is desired.)
SensorSAFE actuation is standard. (Contact Follett if lever actuation is desired. A deeper cabinet will be needed.)
Recommended minimum counter depth and mounting height shown on Fig. 7 ensures that ice will drop into sink.
See Fig. 6 for model dimensions. The dimensions include the 13mm (.5") mounting bracket supplied with the unit.
1. Cut utility hole in wall as shown (Fig. 10).
2. Mount support bracket to wall using fasteners of sufficient strength (fasteners not included, see Fig. 6).
3. Rough in water and drain lines (Fig. 10).
4. Lift dispenser onto support bracket, positioning unit so that hook on back of dispenser is captured by support
bracket angle (Fig. 7).
5. Install two (2) supplied 3/8"-16NC screws through bottom of support bracket into bottom of dispenser (Fig. 5).
6. Make nal connections.
7. Attach bottom panel and hardware to bottom of dispenser (Fig. 8).
wall mounting
bracket
screw
support
bracket
Fig. 5 – Wall mount bracket and fastener requirements
WALL PREPARATION: Wall and fasteners must be of sufficient strength to carry weight of unit
(83.9 kg (185 lbs)). Hardware for this is not included.
!

254 mm (10")
407mm (16")
77mm (3")
204mm (8")
166mm (6.5")
331mm (13")
36mm
(1.4")
178mm
356mm
12mm (.437")
(7")
(14")
77mm (3")
outline of
dispenser
bottom of dispenser
Fig. 6 – Wall mounting dimensions
Caution: Do NOT rest dispenser weight on
bottom of support bracket.
!
Fig. 7 – Wall mount side view
572mm
(22.5")
826mm
(32.5")
470mm (18.5")
Installing wall mount dispensers
493mm (19.375")
597mm (23.5")
minimum distance to sink front
8

9
outline of dispenser
support bracket
bottom of
dispenser
utility cutout
in wall
19mm (3/4")
copper drain tube
10mm (3/8")
copper water tube
locate tubing
within dimension shown
water and
drain tubing
(3")
77mm
89mm
77mm
(3")
32mm (1.25") MAX
(3") (3.5")
(3") MIN.
23mm (0.88") MIN
407mm (16")
254mm (10")
77mm
77mm
wall
nut
support bracket
screw
bottom panel 19mm (3/4")
FPT drain
10mm (3/8") push-in
water inlet
Fig. 8 – Wall mount unit bottom panel assembly Fig. 9 – Wall mount bottom view
Fig. 10 – Front view of wall mount bracket – utility location Side view of utilities exiting wall

10
Dispenser cleaning: start-up and quarterly intervals
1. Remove all ice from storage hopper.
2. Remove center thumbscrew, locking plate, two wingnuts and
backing plate from front of storage hopper.
3. Remove stud assembly, agitator, spacer, baffle, wheel and drive
bar in this sequence.
4. Remove dispense chute.
User information
How the dispenser works
Follett’s 12 series automatic-load ice and water dispensers are equipped with Follett’s 181kg (400 lb)/day
icemaker. 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 icemaker 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 the SensorSAFE accessory works
Follett’s SensorSAFE accessory 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 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 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.
Cleaning and sanitizing procedures
Solution A: Prepare cleaning solution (200 ppm of available
chlorine content) of Ecolab Mikro-chlor Cleaner or
equal chlorinated detergent. Solution temperature
must be 24 C – 52 C (75 F – 125 F).
Solution B: Prepare sanitizing solution (50 ppm of available
chlorine content) of Ecolab Mikro-chlor Cleaner or
equal chlorinated detergent. Solution temperature
must be 24 C – 52 C (75 F – 125 F).
Follett recommends following the periodic cleaning schedule below to ensure
the quality of ice provided. Use only recommended cleaning solutions. Do not
use solvents, abrasive cleaners, metal scrapers or sharp objects.
Warning – Always disconnect power before cleaning.
!
stud assembly
agitator
wheel
drive bar
baffle
backing
plate
wingnut

5. Wipe lid, wheel, baffle, inside of storage area and dispense chute with damp cloth wrung out in Solution A.
6. Rinse all above items with damp cloth and wring out in clear water.
Note: To avoid possible damage to motor assembly, use a damp cloth only to clean storage hopper. Do not
allow water to run through center hole in bottom of hopper.
7. Sanitize all above items with damp cloth wrung out in Solution B. Do not rinse.
8. Pour 284ml (1 cup) household bleach into drain pan, followed by 3.8L (1 gallon) hot tap water to ush drains.
9. Reinstall all parts.
Dispenser grille and drain pan – weekly intervals
1. Remove grille and wash with Solution A. Rinse thoroughly.
2. Pour 282ml (1 cup) household bleach into drain pan, followed by 3.8L (1 gallon) of hot tap water to ush
drains.
Splash panel front, SensorSAFE dispensers
1. Deactivate dispensing by pressing and releasing clean switch located on left side of unit under top front
cover.
2. Clean lens using a soft cloth and mild, non-abrasive, non-chlorine based cleaner.
3. Reactivate dispensing by pressing and releasing clean switch again.
Icemaker cleaning & sanitizing
Preventive maintenance
Periodic cleaning of Follett’s icemaker system is required to ensure peak performance and delivery of clean,
sanitary ice. The recommended cleaning procedures which follow should be performed at least as frequently as
recommended below and more often if environmental conditions dictate.
Cleaning of the condenser can usually be performed by facility personnel. Cleaning of the icemaker system
in most cases should be performed by your facility’s 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.
Cleaning procedures
Recommended monthly cleaning of condenser
1. Use a vacuum cleaner or stiff brush to carefully clean condenser coils of air-cooled icemakers to ensure
optimal performance.
2. When reinstalling counter panels in front of remote icemakers, be sure that ventilation louvers line up with
condenser air duct.
Recommended semi-annual cleaning of icemaking system
Icemaking system can be cleaned in place without disassembling water system. Cleaning should be performed at
least every 6 months, and more often if local water conditions dictate.
1. Disconnect power to icemaker.
2. Remove any icemaker panels required to gain access to water reservoir and electrical control box.
3. Turn compressor switch on electrical box of icemaker to OFF position.
4. Remove water reservoir cover and block up reservoir oat or close water supply valve.
5. Drain water from reservoir by releasing evaporator drain line from oat reservoir bracket and removing plug
from drain line.
11

12
6. Following manufacturer’s instructions, prepare one gallon (3.8L) of Follett SafeCLEAN Ice Machine Cleaner
(one 7 oz packet) or equivalent. Solution temperature must be at least 120 F (48.9 C).
Warning: Most ice machine cleaners contain citric or phosphoric acid that can cause skin irritation. Read
caution label on product and follow instructions carefully.
7. Plug drain hose, replace drain line in reservoir bracket and pour part of cleaning solution into reservoir, lling
it almost to overowing.
8. Remove stainless steel compression nozzle and drain lines. Submerge in a cup of cleaning solution while
cleaning rest of system. (Flake icemakers have no compression nozzle and drain lines.)
Caution: To avoid potential pitting, do not soak parts in SafeCLEAN for more than 45 minutes.
9. Restore power to icemaker (gearmotor will run; compressor and fan will not).
10. After 15 minutes, turn power OFF; drain solution from reservoir and evaporator.
11. Fill reservoir almost to overowing with clean, 120 F (48.9 C) water, and drain. Repeat three times.
12. Following manufacturer’s instructions, prepare 1 gallon (3.8L) of 200ppm 5.25% Sodium Hypochlorite
solution (mix 1 oz household bleach to 2 gallons water) or equivalent. Solution temperature must be at least
120 F (48.9 C).
13. Rinse compression nozzle in clean water and submerge in a cup of sanitizing solution while following
steps 14-19.
14. Connect ice transport tube directly onto evaporator outlet port without compression nozzle.
Note: If bin will not be cleaned at this time, place a large pan in bin storage area to catch ice or connect a
separate ice transport tube to evaporator and divert ice into separate container.
15. Fill reservoir almost to overowing with sanitizing solution.
16. Restore power to icemaker (gearmotor will run; compressor and fan will not).
17. After 10 minutes, turn compressor switch to ON position.
18. As unit starts to make ice, continue to pour sanitizing solution into reservoir, maintaining level just below
reservoir overow.
19. Continue to make ice with sanitizing solution for 20 minutes.
20. Turn power to icemaker OFF.
21. Disconnect transport tube from evaporator outlet port. Rinse compression nozzle in clean water and reinstall
on evaporator outlet. Reconnect transport tube to compression nozzle.
22. Drain any remaining sanitizing solution from evaporator.
23. Fill reservoir almost to overowing with clean, 120 F (48.9 C) water, and drain. Repeat three times.
24. Unblock oat (or open water supply valve) and replace reservoir cover; restore power to icemaker and
ensure compressor switch is in ON position. Make ice for at least 15 minutes to ush any remaining
solution from system (remote icemakers with long ice transport hoses may take longer to ush out). Discard
this and all ice made during sanitizing.
25. Inspect evaporator drain pan and drain line and remove any accumulated scale build up.
26. Replace any panels removed prior to cleaning.
Start-up following cleaning
1. Clean and sanitize ice storage area of dispenser in accordance with instructions above before making ice.
2. Turn icemaker on and begin to make ice (icemaker should start immediately with power and bin signal
supplied).
3. After approximately 30 minutes, test dispenser for proper dispensing.

13
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).
2. Remove electrical box cover.
3. Pull electrical box toward front of unit.
Service
Important preliminary information
Follett’s icemaker consists of four distinct functional systems.
• Refrigeration system
• Water system
• Harvesting system
• Electrical control system
These four systems work together to accomplish the production and harvesting of ice. A problem in any one of
these system areas will result in improper operation of the entire ice production cycle. When troubleshooting the
icemaker, 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.
Note: When performing electrical service, always use a meter to determine whether or no components being
serviced are energized.
The icemaking process
The Follett icemaker 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 a oat valve. This valve also
shuts off the water supply when the icemaker is not running.
When the icemaker is running, a layer of ice forms on the interior surface of the evaporator. This ice is continuously
removed by a 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 high quality. As the formation of ice continues, ice in the transport tube is pushed through the
tube to the storage compartment in the ice dispenser or ice storage bin.
A solid state control board located in the electrical box of the icemaker controls the normal operation of the icemaker
and monitors gearmotor torque on an ongoing basis. This control board will shut down the icemaker 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 icemaker.
electrical box
electrical box
cover

How the unit works — lever model The dispense wheel motor is energized through the power, dispense and cover interlock switches. The bin signal circuit is completed through the normally closed contacts of the bin thermostat and the bin signal switch. When ice builds up around the bin thermostat, the contacts open, cutting the bin signal circuit.
BLACK
#41
MOTOR
BLACK
#33
BLACK
BLACK #29
WHITE
COMPRESSOR
MAIN FRAME
MOUNTED ON COMPONENTS
WHITE #34
M
START
RUN
4
SOLENOID
ON SPLASH PANEL COMPONENTS MOUNTED
WATER
#30
BLACK
WHITE
#32
S
BLACK #31
4
1
1
#28
MAIN FRAME
(INTERNAL)
MOUNTED ON
COMPONENTS
OVER-LOAD COMPRESSOR
ICE DISPENSE SWITCH
WATER DISPENSE SWITCH
WHITE #16
FAN
START
RELAY
RUN
START
MOUNTED ON MAIN FRAME
YELLOW
BLACK
GEAR MOTOR
BLUE
ORANGE #18 ORANGE #19
WHITE #15
BLACK #13
WHEEL
4
GREEN #27
BLACK #8
1
BLACK #9
WHITE #26
BLACK #10
SAFETY SWITCH HIGH PRESSURE
RED #17
BLACK #38
WHITE #39
MAIN FRAME GRN TO
POWER SWITCH
ELEC. BOX GRN IN WATER SENSOR
COMPRESSOR
BIN THERMO- STAT
1. HIGH PRESSURE SAFETY SWITCH:
OPEN: 425psi CLOSES: 297psi (AUTORESET)
NOTE
2
4
T.O.L.
Lid Interlock Sw.
SWITCH
BLUE
GREEN/YELLOW
BROWN
COMP. START
CAPACITOR
Black
COMP. START RELAY
BIN SIGNAL SWITCH
COMP. RUN
CAPACITOR
Silver
ORANGE 48
BLACK 46
ORANGE 49
1
WHITE 44
BLACK 45
BLACK 47
RED 42
2 5
RED 43
ORANGE #14
RED #21 RED #20
VIOLET #22
VIOLET #23
R
S
C
x
x
3
SOFTWARE
WTR
B-E
B-T
I.D.
2ND
60M
20M
C
DRV
FAN
COMP
LABEL
I.D.
POWER
DR
WTR PROBE
L1 L2
Wiring diagram – lever model
14

How the unit works — SensorSAFE model SensorSAFE™models provide “touchless” ice and water dispensing. When a container is placed within the actuation zone below the ice or water chute, an invisible, randomly-generated infrared signal is emitted, reected off the container and detected by the sensor. The sensor then sends a signal to the control board to activate the appropriate components to dispense ice or water. LEDs on the board indicate when the board is receiving a signal from the sensors. A safety, shut-off feature automatically shuts off dispensing after one minute of continuous activation. Dispensing can be restarted by moving the container away and then returning it to the actuation zone. Dispensing can be temporarily suspended by depressing and releasing the clean switch, located under the left side of the top front cover. Depressing and releasing the button a second time will return the dispenser to normal operating state. If the clean switch is not depressed a second time, the dispenser will automatically resume normal dispense operation (CLN LED goes out) after two minutes. An LED on the control board will light to indicate that the dispensing has been suspended by activation of the clean switch. The bin signal circuit is completed through the normally closed contacts of the bin thermostat and the bin signal switch. When ice builds up around the bin thermostat, the contacts open, cutting the bin signal.
WHITE
COMPRESSOR
COMP. START RELAY
START
RUN
COMP. START
CAPACITOR
Black
R
S
C
MAIN FRAME
(INTERNAL)
MOUNTED ON
COMPONENTS
OVER-LOAD COMPRESSOR
WHITE #16
FAN
START
RELAY
RUN
START
MOUNTED ON MAIN FRAME
YELLOW
BLACK
GEAR MOTOR
BLUE
BIN SIGNAL SWITCH
BIN THERMO- STAT
ORANGE 18
ORANGE 19
WHITE #15
BLACK #13
GREEN #27
WHITE #12
BLACK #10
SAFETY SWITCH HIGH PRESSURE
RED #17
BLACK #38
WHITE #39
x
x
MAIN FRAME GRN TO
POWER SWITCH
ELEC. BOX GRN IN WATER SENSOR
2. HIGH PRESSURE SAFETY SWITCH:
OPEN: 425psi CLOSES: 297psi (AUTORESET)
SEE LABEL FOR PROPER ORIENTATION
1. COMPRESSOR START RELAY IS GRAVITY SENSITIVE. NOTE
T.O.L.
12
5
COMP. RUN
CAPACITOR
Silver
CLEAN SWITCH
LID INTERLOCK SWITCH
WHEELMOTOR
SOLENOID
WHITE #34
M
BLACK #41
BLACK #33
BLACK #35
WHITE
#37
S
BLACK
#36
WATER
GND
WM
WTR SOL
BLACK #9
BLACK #8
NEUTRAL
#40
YELLOW
1
#40
YELLOW
4
CLN
PWR
L1
SENSOR
SPLASH PANEL
14
MAIN FRAME
COMPONENTS
MOUNTED ON
SENSOR WATER
COMPONENTS MOUNTED ON
ICE
WTR
ICE
Compressor Switch
ORANGE 14
VIOLET 23
VIOLET 22
RED 20
RED 21
RED 42
RED 43
WHITE 44
BLACK 45
BLACK 46
BLACK 47
ORANGE 49
BLACK #11
WHITE #26
ORANGE 48
SOFTWARE
WTR
B-E
B-T
I.D.
2ND
60M
20M
C
DRV
FAN
COMP
LABEL
I.D.
POWER
DR
WTR PROBE
L1 L2
GREEN/YELLOW
BROWN
BLUE
230 V~ 50 Hz
2
4
3
Wiring diagram – SensorSAFE model
15

16
Icemaker operational and diagnostic sequences
The wiring diagrams that follow illustrate the circuitry of Follett icemakers used with 12 series ice dispensers. Both
normal operation (Stages 1 – 6) and non-normal diagnostic sequences showing torque-out (Stages 7 – 10) for
use in troubleshooting are shown.
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
RED
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
Circuitry notes
• Compressor switch should read closed in ON position.
• Bin signal is 16V DC.
• Flashing water LED at any time indicates that water signal to board has been lost for more than one
second.
• Ten-second delay: There is a 10 second delay in reaction to loss of water (WTR) or bin (B-E) signals. If
signals are not lost for more than 10 seconds, no reaction will occur.
Normal operation – Stage 1
Power is supplied to L1 of the control board. The ice level control in the dispenser is closed and calling for ice,
completing the bin signal circuit to the control board. The control board will now go through the start-up sequence.
Less than 30 seconds will elapse as the water sensor located in the oat reservoir checks for water in the
reservoir. The bin empty LED (B-E), and power LED (PWR) will be on.

Normal operation – Stage 2
The water sensor veries water in the oat reservoir. The water OK LED (WTR) comes on. At the same time, the
gearmotor, compressor and condenser fan motor come on, lighting the drive LED (DR) and compressor LED (C).
The gearmotor is started through a current style relay that is pulled in by the initial high current draw of the run
winding. The compressor is started with the start winding being energized through the normally closed contacts of
the potential relay, starting capacitor, and the run capacitor. The PWR, BE and WTR LED remain on.
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
Normal operation – Stage 3
After the initial high current draw drops off, the gearmotor start relay contacts open, dropping out the start winding.
As the compressor comes up to normal running speed, the compressor start relay contacts open and the starting
capacitor drops out. The start winding remains energized through the run capacitor. The icemaker is now in a
normal icemaking mode. The icemaker will begin to produce ice and continue to produce ice until the bin level
control in the ice dispenser is satised. The PWR, B-E, DR, C and WTR LEDs are all on.
17

18
Normal operation – Stage 5
The drive motor now shuts down and the DR LED is off. The B-T LED remains on for 20 minutes. The icemaker
will not start while the B-T LED is on. To restart the icemaker for troubleshooting purposes, depress the reset
button to clear the control board.
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
Normal operation – Stage 4
Once the ice level control opens, the B-E LED goes out. After a 10 second delay the compressor LED (C),
compressor and fan motor go off. (Should the ice level control not remain open for 10 seconds, the icemaker
will continue to run.) The gearmotor continues to run and the DR LED remains on for 60 seconds. The purpose
of this function is to drive the remaining ice out of the evaporator and to boil off any refrigerant remaining in the
evaporator. The bin timer LED (BT) comes on, starting the twenty minute off cycle time delay.

Diagnostic sequence – Stage 7
The 20 minute error LED (20M) is on, indicating that the control board has sensed an over-torque condition
(above 2.5 AMPS on the gearmotor). The 20M LED remains on for 20 minutes after an over-torque condition has
occurred. The icemaker remains off as long as the 20M LED is on. When the 20M LED goes off, the control board
will try to go through a normal start-up sequence. The WTR LED remains on as long as the water sensor in the
oat reservoir senses water.
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
Normal operation – Stage 6
When the dwell time of 20 minutes has expired, the B-T LED goes off. The icemaker goes through the normal
start-up sequence when the bin level control signals the control board for ice. The WTR LED will remain on as
long as the water sensor in the oat reservoir senses water.
19

20
Diagnostic sequence – Stage 8
If the restart is successful the 20M LED goes off, the 60 minute timer LED (60M) comes on. The 60M LED will
remains on for 60 minutes from restart. A lighted 60M LED indicates the icemaker has experienced an over-torque
condition. If the icemaker runs without problems for 60 minutes and no additional torque errors occur, the 60M
LED goes off and the icemaker continues normal operation.
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
RED
WTR
B-E
B-T
2ND
60M
20M
C
POWER
DR
WHITE
BLACK
YELLOW
WHITE
4
3
2
T.O. L .
START
RUN
GEARMOTOR
COMPRESSOR
R
POTENTIAL
START RELAY
RUN
CAP.
CAPACITOR
START
C
S
2
1
5
T.O. L .
L1
L2
COMP
FAN
DRV
BIN
T-S TAT
BIN
SIGNAL
SWITCH
WATER
SENSOR
GGREEN/YELLOW
GRND IN
ELEC BOX
BROWN
BLUE
WHITE
WHITE
BLACK
BLACK
ORANGE
RED
BLACK
BLACK
BLACK BLACK
VIOLET VIOLET ORANGE ORANGE
RED RED
BLUE
BLACK
FAN
M
ORANGE
BLACK
L
N
HIGH PRESSURE
SAFETY SWITCH
COMPRESSOR
SWITCH
DISPENSER
Diagnostic sequence – Stage 9
The second error (2ND) LED comes on if an over-torque condition occurs while the 60M LED is still lit. The 2ND
LED indicates two consecutive over-torque situations have occurred. The icemaker will be shut down at this time
and will not restart unless the manual reset button is depressed.