12 Series
Ice and Water Dispensers
Installation, Operation and Service Manual
Order parts online
www.follettice.com
C125A
countertop dispenser
C125A
countertop dispenser with
SensorSAFE™ actuation (shown
with legs accessory)
H125A
wall mount dispenser (available
with or without drain pan)
Following installation, please forward this manual
to the appropriate operations person.
801 Church Lane • PO Box D • Easton, PA 18044
Toll free (800) 523-9361 • (888) 2-FOLLETT
(610) 252-7301 • Fax (610) 250-0696 • www.follettice.com
U® L
®
207805R02
Table of contents
Before you begin ......................................................................................... 4
Specifications ............................................................................................... 5
Installation procedures ............................................................................. 6
Installing countertop dispensers without legs ............................ 6
Installing countertop dispenser with legs accessory .................. 7
Installing wall mount dispensers ................................................ 8
User information ......................................................................................... 10
Cleaning and sanitizing procedures ..........................................10
Dispenser cleaning ....................................................................10
Icemaker cleaning and sanitizing ..............................................11
Start-up following cleaning ....................................................... 12
Service Information ................................................................................... 13
Wiring diagram – lever model .................................................. 14
Wiring diagram – SensorSafe™ model ..................................... 15
Icemaker operational and diagnostic sequences ..................... 16
Refrigeration cycle diagram ..................................................... 21
Icemaker capacity chart ........................................................... 22
Icemaker data .......................................................................... 22
Refrigeration system data and requirements ........................... 23
Dispenser troubleshooting – lever/SensorSafe models ........... 24
Troubleshooting – SensorSAFE board and sensors ............... 25
Icemaker troubleshooting ........................................................ 26
Disassembly and replacement instructions ............................. 28
................................................................................................. 32
Parts
Dispenser exterior ................................................................... 32
Wheelmotor and drive system ................................................. 33
Dispense chute and splash panel – lever models ................... 34
Dispense chute and splash panel – SensorSafe models ........ 35
Icemaker components ............................................................. 36
Water filter kits and cartridges ................................................. 36
Electrical components ............................................................. 38
Evaporator ............................................................................... 39
Gearbox and motor assembly ................................................. 40
Miscellaneous parts ................................................................. 40
3
Welcome to Follett
Follett ice dispensers enjoy a well-deserved reputation for excellent performance, long-term reliability and outstanding
after-the-sale support. To ensure that this dispenser delivers that same degree of service, we ask that you review the
installation portion of this manual before beginning to install the dispenser. 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 (800) 523-9361, (888) 2-FOLLETT or (610) 252-7301.
Following installation, please forward this manual to the appropriate operations person.
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 filing 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:
C125A
Condenser type – A = air-cooled
Icemaker capacity and refrigerant – 5 = 400 lbs (181kg)/day, R22 refrigerant
Approximate storage capacity in lbs
Dispenser configuration – C = countertop, H = wall mount
!
Important cautions
• 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 first.
• Follett recommends installation of an activated carbon filter in icemaker inlet water line
• Ice is slippery. Maintain counters and floors 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
4
Specifications
air exhaust
22.5"
(572mm)
Air
intake
32.5"
(826mm)
air
intake
3/8" FPT
water inlet
4"
(102mm)
16"
(407mm)
23.6"
(600mm)
Dispenser front view
18"
(458mm)
Dispenser side view
3/4" FPT drain
power cord
Dispenser rear view
Electrical specifications
115V, 60Hz, 1 phase, 13.0 amps. Connect to 20 amp circuit, fuse or breaker.
Note: It is preferred that circuit be protected by a GFCI.
Furnished with 6 ft (1.8m) power cord with 5-20 plug
Ambient specifications
Air temp
Water temp
Water pressure
100°F/38°C Max.
90°F/32°C Max.
70 P.S.I. Max.
50°F/10°C Min. (Best performance below 80˚F/27˚C)
40°F/4°C Min. (Best performance below 70˚F/21˚C)
10 P.S.I. Min.
Plumbing specifications
Dispenser drain
Water inlet
Note:
C125A
3/4" FPT
3/8" FPT
H125A
3/4" FPT
3/8" FPT
Water shut-off recommended within 10 feet (3m) of dispenser. Drain to be hard-piped and insulated.
Maintain at least 1/4" per foot (6mm per 30.4cm run) of slope.
Ventilation clearances
6" (153mm) on right side of dispenser, 12" (305mm) at top
!
Do not block right side air intake or top air exhaust.
Dry weight
175 lbs (79.4kg)
5
Installation procedures
Before you begin
• All dispensers must be installed level in both directions to ensure proper operation.
• Required service and ventilation clearances: 6" (153mm) on right side of dispenser, 12" (305mm) at top.
• 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 out 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.
• Wall mount models require 30" (762mm) deep counters. Front of sinks must be installed no more than 2"
(51mm) from front of counter.
Installing countertop dispensers without legs
1.
2.
3.
4.
5.
6.
7.
Position dispenser in desired location,
mark dispenser outline on counter and
remove dispenser.
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).
For utilities exiting through bottom
.437"
only:
diameter
(a) Make cutout as shown in Fig. 1.
(b) Move plug from drain T to back of
unit (Fig. 2).
(c) Remove 90 degree compression
fitting and poly tube.
(d) Run water line to 3/8" FPT water
inlet.
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" (6mm) inside marked
outline of dispenser.
Carefully lower dispenser on counter in
proper position and secure to counter
with four (4) 3/8"-16NC bolts.
Smooth excess sealant around outside
of dispenser.
Make final connections.
6
Fig. 1
Counter information
16"
(407mm)
0.8"
14.4"
(2mm)
(266mm)
12"
(305mm)
1.5"
2"
(38mm)
(51mm)
1" (26mm)
cutout for
connections
through
bottom
12"
(305mm)
15.9"
(404mm)
18"
(458mm)
4"
(102mm)
Fig. 2
Rear exiting utilities
(countertop units)
Fig. 3
Bottom exiting utilities
(countertop units)
(b-1) Move pipe plug
to back of unit
3/4" FPT drain
(b-2)
11.7"
(298mm)
8.1"
(206mm)
16"
(407mm)
1.5"
(39mm)
3/8" FPT
water inlet
(c) Remove poly tubing and
fitting for water inlet
.9"(23mm)
3/8" FPT water inlet
3/4" FPT drain
power cord
Installing countertop dispensers with legs accessory
Fig. 4
Bottom panel assembly
Do NOT tilt unit further than 30° off vertical.
!
1.
2.
3.
4.
5.
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.
Carefully tip dispenser back to expose underside and block up
in place.
Screw legs (shipped taped to drain pan of dispenser) into
dispenser bottom, taking care to seat legs securely against
underside of dispenser.
Position unit in desired location and adjust bullets on legs to
level in both directions.
Attach bottom panel and hardware to bottom of dispenser with
supplied screws (Fig. 4).
Make final connections.
7
bottom
panel
screw
leg
COUNTER TOP DISPENSER WITH LEGS
Fig. 5
Installing wall mount dispensers
Wall mount bracket and fastener requirements
wall mounting
bracket
Wall mount models require 30" (762mm)
deep counters and front of sinks must be
installed no more than 2" (51mm) from front
of counter.
!
Supporting wall must be reinforced to
handle dispenser weight (185 lbs/83.9kg).
1.
2.
Cut utility hole in wall as shown in Fig. 10.
Mount support bracket to reinforced wall using
fasteners of sufficient strength (fasteners not
included, Fig. 6).
Rough in water and drain lines (Fig. 10).
Lift dispenser onto support bracket, positioning
unit such that hook on back of dispenser is
captured by support bracket angle (Fig. 7).
3.
4.
screw
support
bracket
!
Fig. 6
Caution: Do NOT rest dispenser weight
on bottom of support bracket.
!
WALL PREPARATION: Wall and fasteners
must be of sufficient strength to carry weight
of unit (185 lbs/83.9kg). Hardware for this is
not included.
5.
Wall mount mounting dimensions
6.
7.
Install two (2) supplied 3/8"-16NC screws
through bottom of support bracket into bottom of
dispenser (Fig. 5).
Make final connections.
Attach bottom panel and hardware to bottom of
dispenser as shown in Fig. 8.
Fig. 7
outline of
dispenser
Wall mount side view
22.5"
(572mm)
13"
(331mm)
8"
(204mm)
6.5"
(166mm)
32.5"
(826mm)
.437
14"
(356mm)
7"
(178mm)
3"
1.4" (36mm) (77mm)
10"
(254mm)
16"
(407mm)
3"
(77mm)
bottom of
dispenser
8
18"
(458mm)
Fig. 8
Fig. 9
Wall mount unit bottom panel assembly
Wall mount bottom view
nut
support
bracket
3/8" FPT
water inlet
bottom panel
3/4" FPT
drain
screw
Fig. 10
Front view of wall mount bracket – utility location
3/8" copper
water tube
water and
drain tubing
3/4" copper
drain tube
support bracket
outline of dispenser
wall
1.25" (32mm) MAX
0.88" (23mm) MIN
3"
(77mm)
3"
(77mm)
3.5"
(89mm)
10"
(254mm)
bottom of
dispenser
3"
(77mm)
16"
(407mm)
utility cutout
in wall
3"
(77mm)
MIN.
Side view of
utilities exiting
wall
locate tubing
within dimension shown
9
User information
How the dispenser works
Follett’s 12 series automatic load ice and water dispensers are equipped with Follett’s 400 lb (181kg)/day icemaker. In
Follett’s continuous icemaking process, water freezes to the inside walls 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 stat 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 reflected infra-red 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 75˚F – 125˚F
(24˚C – 52˚C).
Solution B: Prepare sanitizing solution (50 ppm of available chlorine
content) of Ecolab Mikro-chlor Cleaner or equal chlorinated
detergent. Solution temperature must be 75˚F – 125˚F
(24˚C – 52˚C).
Follett recommends 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.
Dispenser cleaning: start-up and quarterly intervals
!
Warning – Always disconnect power before cleaning.
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.
5. Wipe lid, wheel, baffle, inside of storage area and dispense chute
with damp cloth wrung out in Solution A.
stud assembly
agitator
spacer
baffle
wheel
drive bar
locking
plate
thumbscrew
10
wingnut
backing
plate
!
6.
7.
8.
9.
To avoid possible damage to motor assembly, use a damp cloth only. Do not allow
water to run through center hole in bottom of bin area.
Rinse all above items with damp cloth rinsed and wrung out in clear water.
Sanitize all above items with damp cloth wrung out in Solution B. Do not rinse.
Pour 1 cup (284ml) household bleach into drain pan, followed by 1 gallon (3.8L) hot tap water to flush drains.
Reinstall all parts.
Dispenser grille and drain pan - weekly intervals
1.
2.
Remove grille and wash with Solution A. Rinse thoroughly.
Pour 1 cup (284ml) household bleach into drain pan, followed by 1 gallon (3.8L) of hot tap water to flush
drains.
Splash panel front, SensorSAFE™ dispensers
1.
2.
3.
Deactivate actuation by pressing and releasing clean switch located on left side of unit under top front
cover.
Clean lens using a soft cloth and mild, non-abrasive cleaner.
Reactivate dispenser 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.
Condenser cleaning - monthly
1. Use vacuum cleaner or stiff brush to carefully clean condenser coils of air-cooled icemaker to ensure optimal
performance.
2. When reinstalling louver panels on side of dispenser, be sure ventilation louvers are facing down in order to prevent
water, dust and other debris from falling into system.
Icemaking cleaning - quarterly
The icemaking system can be cleaned in place without disassembling the water system. This cleaning process
should be performed at least every 3 months, and more often if local water conditions dictate. Failure to clean
icemaker will result in decreased performance and potential damage to icemaker.
1. Disconnect power to unit.
2. Remove front panel (as shown on page 30) to gain access to water reservoir and electrical control box.
3. Turn compressor switch on electrical box to OFF position.
4. Remove water reservoir cover and block up reservoir float.
5. Drain water from reservoir and evaporator using evaporator drain hose teed off evaporator supply hose.
6. Following manufacturer's instructions, prepare 3 pints (1.4L) Calgon Ice Machine Cleaner or equivalent. Cleaning
solution temperature must be 65˚ - 85˚F (18˚ - 29˚C).
11
!
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
Most ice machine cleaners contain citric or phosphoric acid which
can cause skin irritation. Read caution label on product and follow
instructions carefully.
Plug evaporator drain hose and pour part of cleaning solution into reservoir, filling almost to overflowing.
Remove stainless steel compression nozzle and submerge in cup of cleaning solution while cleaning rest of system.
Restore power to icemaker (gearmotor will now run, but compressor and fan motor will not).
After 15 minutes, turn power off and drain cleaning solution from reservoir and evaporator.
Plug drain hose and secure in mounting position.
Rinse compression nozzle in clean water and reinstall on evaporator outlet.
Clean evaporator drain pan and drain lines with liquid ice machine cleaner (remove left side panel for access, as
shown on page30.)
Following manufacturer’s instructions, prepare 1 gallon (3.8L) Calgon Ice Machine Sanitizer or equivalent. Sanitizing
solution temperature must be 65˚ - 85˚F (18˚ - 29˚C).
If ice bin cleaning is also needed at this time, remove all ice from ice storage area and allow ice made during
sanitizing process to fall into ice bin area.
Note: If storage hopper will not be cleaned at this time, connect a separate ice transport tube to
evaporator and divert ice into separate container.
Fill reservoir almost to overflowing with sanitizing solution.
Restore power to icemaker and turn compressor switch to ON position.
As unit starts to make ice, continue to pour sanitizing solution into reservoir, maintaining level just below reservoir
overflow.
Continue to make ice until you have used 1/2 gallon (1.9L) sanitizing solution.
Unblock float, replace reservoir cover and continue to make ice for at least 15 minutes to flush all sanitizing
solution from system.
Switch compressor switch to OFF position.
Wash storage hopper with remaining sanitizing solution and rinse with potable water.
Switch compressor switch to ON position.
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 within 45 seconds with power and bin signal
supplied).
3. After approximately 30 minutes, test dispenser for proper dispensing.
12
Service information
How the icemaker works
Follett’s icemaker consists of four distinct functional systems:
• Refrigeration system
• Water system
• Harvesting system
• Electrical control system
These four systems work together to produce and harvest 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 not components being
serviced are energized.
The icemaking process
Follett icemakers use a wrapped tube evaporator and operate on a continuous freezing cycle. Water is supplied to the
evaporator from the water reservoir where the water level is controlled by a float 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 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 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 bin. When the storage area is full, a bin stat opens and
shuts the icemaker off.
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
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.
2.
3.
Remove top and front panels of dispenser
(see page 30 for panel removal instructions).
Remove electrical box cover.
Pull electrical box toward front of unit.
electrical
box cover
13
4
WHITE #34
S
1
WATER DISP
SWITCH
BLACK
#30
4
1
S
COMP
R
L
1
START RELAY
M
S
BLACK
#42
BLACK
#42
CAP
FAN
WHITE #39
WHITE #11
BLACK #10
COMPONENTS
MOUNTED ON
MAIN FRAME
RED #21
C
BLACK #24
BLACK #25
BLACK
#28
COMPONENTS MOUNTED
ON SPLASH PANEL
WATER
SOLENOID
WHITE
#32
BLACK #31
4
ICE DISPENSE
SWITCH
NOTE:
COMPRESSOR START RELAY IS
GRAVITY SENSITIVE.
SEE LABEL FOR PROPER ORIENTATION
COMPONENTS
MOUNTED ON
MAIN FRAME
M
WHEEL
MOTOR
1
COVER
INTERLOCK
SWITCH
WHITE #26
BLACK #29
115 VAC, 60 HZ
BLACK #22
BLACK
#41
BLACK #13
ORANGE #23
GREEN #27
GREEN
BLACK
WHITE
BLA CK
#33
TERMINAL BLOCK
GREEN #12
3
L1
BLACK #20
WHITE #15
N.C.
WHITE #17
.
BIN SIGNAL SWITCH
B-T
B-E
WTR
DR
C
20M
60M
2ND
POWER
WATER RESET
SENSOR
BLACK #19
SOFTWARE
I.D.
I.D
LABEL.
BIN LEVEL THERMOSTAT
BLACK #18
L2
L2
L2
L2
L2
COMP
FAN
DRIVE
L1
L1
EARTH
WATER SENSOR
GEAR MOTOR
MOUNTED ON MAIN FRAME
N.C.
4
L2
BLACK #38
x
WHITE #16
.
GRN IN
ELEC BOX
.
RED #20
207782
COMPRESSOR SWITCH
(OPEN COMP. ON,
CLOSED COMP. OFF)
LINE
VAC
COMM.
24
VAC
POWER SWITCH
BLACK #14
14
COMP
SWITCH
GRN TO
MAIN FRAME
x
RED #20
The dispense wheel motor is energized through the power, dispense and cover interlock switches. The icemaker receives the bin signal through
the power switch, the bin signal switch and the normally closed bin thermostat. When ice builds up around the bin thermostat, the contacts open,
cutting power to the icemaker.
How the unit works — lever model
Wiring diagram – lever model
L1
WTR SOL WM
S
#36
M
GND
1
WHEELMOTOR
BLACK #41
BLACK #33
WATER
SOLENOID
1
4
WTR
ICE
WATER
SENSOR
ICE
SENSOR
BLACK #13
COMPONENTS
MOUNTED ON
MAIN FRAME
COVER
INTERLOCK
SWITCH
COMPONENTS
MOUNTED ON
SPLASH PANEL
WHITE #44
BLACK #43
WHITE #26
WHITE
GREEN
BLACK
CLEAN SWITCH
4
CLN
PWR
YELLOW
#40
GREEN #45
YELLOW
#40
C
S
R
COMP
1
L
#42
BLACK
#42
BLACK
CAP
GEAR MOTOR
L1
BLACK #20
N.C.
WATER
SENSOR
POWER
RESET
COMPRESSOR SWITCH
(OPEN COMP. ON,
CLOSED COMP. OFF)
BLACK #19
SOFTWARE
I.D .
I.D.
LABEL
BIN LEVEL THERMOSTAT
BIN SIGNAL SWITCH
BLACK #18
FAN
DRIVE
COMP.
L2
L2
L2
L2
L2
L1
L1
EARTH
WATER SENSOR
WHITE #17
3
MOUNTED ON MAIN FRAME
4
N.C.
L2
NOTE
COMPRESSOR START RELAY IS GRAVITY SENSITIVE.
SEE LABLE FOR PROPER ORIENTATION
START RELAY
M
S
FAN
GREEN #12
BLACK #38
WHITE #39
WHITE #11
BLACK #10
COMPONENTS
MOUNTED ON
MAIN FRAME
RED #21
TERMINAL BLOCK
x
WHITE #15
GREEN #27
BLACK #22
x
ORANGE #23
GRN IN
ELEC. BOX
COMP.
SWITCH
POWER SWITCH
WHITE #16
115 VAC, 60 HZ
BLACK #25
BLACK
WHITE
WHITE #34
BLACK #24
BLACK #35
BLACK #14
15
NEUTRAL
#37
LINE
VAC
COMM.
24
VAC
GRN TO
MAIN FRAME
RED #20
207783
DR
C
20M
60M
2ND
WTR
B-T
B-E
RED #20
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 infra-red signal is emitted, reflected 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 icemaker receives the bin signal through the power switch, the bin signal switch and the normally closed bin thermostat. When ice builds up around the bin
thermostat, the contacts open, cutting power to the icemaker.
How the unit works — SensorSAFE model
Wiring diagram – SensorSAFE™ model
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.
Circuitry notes
• Compressor switch should read open in ON position
• Compressor start relay is position sensitive. See label on start relay for proper orientation.
• Bin signal is 115V, 60Hz
• Flashing water LED at any time indicates that water signal to board had 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,
supplying signal voltage 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 float reservoir checks for water in the reservoir.
The Bin Empty LED (B-E) will be on.
INPUT
POWER
W
B
G
GRD
X
PWR
RESET
GRD
M
WHITE
L2
L2
BLACK
M
1
S
L
24V
COMMON
LINE VAC
BLACK
R
20M
60M
2ND
COMPRESSOR
FAN
DRIVE
COMPRESSOR
C
C
CONTROL
BOARD
L2
L2
BLACK
BIN T-STAT
DR
L1
L1
L2
WHITE
FAN
BIN SIGNAL
SWITCH
WATER
SENSOR
WTR
B-T
B-E
RED
RED
ORANGE
RED
BLACK
WHITE
BLACK
BLACK
S
L2
L1
3
4
GEARMOTOR
16
COMPRESSOR
SWITCH
WHITE
BLACK
Normal operation – Stage 2
The water sensor verifies water in the float. 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 compressor is started through a current style relay that is pulled in by the initial high current draw of the
compressor. The B-E and WTR LED remain on.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
L1
L2
WHITE
BLACK
WHITE
R
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
WTR
24V
COMMON
LINE VAC
BLACK
C
20M
L2
L2
COMPRESSOR
BIN T-STAT
DR
C
L2
L2
FAN
M
RESET
B-T
B-E
RED
RED
ORANGE
BLACK
BLACK
S
RED
COMPRESSOR
SWITCH
L2
L1
BLACK
3
WHITE
4
GEARMOTOR
WHITE
BLACK
Normal operation – Stage 3
The gearmotor comes up to its normal running speed and the centrifugal switch located in the gearmotor opens,
dropping out the start winding. As the compressor comes up to normal running speed, the compressor start relay
contacts open, dropping out the start winding of the compressor. 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 satisfied. The B-E, DR, C and WTR LEDs are all on.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
L1
L2
WHITE
M
BLACK
WHITE
R
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
24V
COMMON
LINE VAC
BLACK
C
20M
L2
L2
COMPRESSOR
BIN T-STAT
DR
C
L2
L2
FAN
RESET
WTR
B-T
B-E
RED
RED
ORANGE
RED
BLACK
WHITE
BLACK
BLACK
S
L2
L1
3
4
GEARMOTOR
17
COMPRESSOR
SWITCH
WHITE
BLACK
Normal operation – Stage 4
Once the ice level control opens, the B-E LED goes out. After a 10 second delay the 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 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.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
WHITE
WHITE
20M
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
2ND
WTR
24V
COMMON
LINE VAC
BLACK
R
60M
L2
L2
COMPRESSOR
C
C
L2
L2
BLACK
BIN T-STAT
DR
L1
L2
FAN
M
RESET
B-T
B-E
RED
RED
ORANGE
BLACK
RED
BLACK
S
COMPRESSOR
SWITCH
L2
L1
BLACK
3
WHITE
4
GEARMOTOR
WHITE
BLACK
Normal operation – Stage 5
The B-T LED will remain on for 20 minutes. The icemaker will not start while the B-T LED is on. To restart the
icemaker for troubleshooting purposes, press the reset button to clear the control board.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
WHITE
M
BLACK
WHITE
R
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
24V
COMMON
LINE VAC
BLACK
C
20M
L2
L2
COMPRESSOR
DR
C
L1
L2
L2
L2
FAN
BIN T-STAT
RESET
WTR
B-T
B-E
RED
RED
ORANGE
RED
BLACK
WHITE
BLACK
BLACK
S
L2
L1
3
4
GEARMOTOR
18
COMPRESSOR
SWITCH
WHITE
BLACK
Normal operation – Stage 6
When the dwell time of 20 minutes has expired, the B-T LED goes off. The icemaker will go 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 float reservoir senses water.
INPUT
POWER
W
BIN SIGNAL
SWITCH
B
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
WHITE
BLACK
WHITE
20M
1
S
L
2ND
COMPRESSOR
FAN
DRIVE
BLACK
M
60M
L2
L2
24V
COMMON
LINE VAC
BLACK
R
C
C
L1
L2
COMPRESSOR
BIN T-STAT
DR
L2
L2
FAN
M
RESET
WTR
B-T
B-E
RED
RED
ORANGE
BLACK
BLACK
S
RED
COMPRESSOR
SWITCH
L2
L1
BLACK
3
WHITE
4
GEARMOTOR
WHITE
BLACK
Diagnostic sequence – Stage 7
The 20 Minute Error LED (20M) is on indicating that the control board has sensed an over-torque condition
(above 3.5 AMPS on the gearmotor). The 20M LED will remain on for 20 minutes after an over-torque condition
has occurred. The icemaker will remain 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 float reservoir senses water.
INPUT
POWER
W
BIN SIGNAL
SWITCH
B
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
L1
L2
WHITE
M
BLACK
WHITE
R
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
ORANGE
RED
BLACK
WHITE
BLACK
WTR
B-T
B-E
RED
RED
BLACK
S
24V
COMMON
LINE VAC
BLACK
C
20M
L2
L2
COMPRESSOR
BIN T-STAT
DR
C
L2
L2
FAN
RESET
L2
L1
3
4
GEARMOTOR
19
COMPRESSOR
SWITCH
WHITE
BLACK
Diagnostic sequence – Stage 8
When the 20M LED goes off, the 60 Minute Timer LED (60M) comes on. The 60M LED will remain on for 60
minutes from restart. A lighted 60M LED tells the technician that 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 will go off.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
L1
L2
WHITE
M
BLACK
WHITE
R
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
24V
COMMON
LINE VAC
BLACK
C
20M
L2
L2
COMPRESSOR
BIN T-STAT
DR
C
L2
L2
FAN
RESET
WTR
B-T
B-E
RED
RED
ORANGE
BLACK
RED
BLACK
S
COMPRESSOR
SWITCH
L2
L1
BLACK
3
WHITE
4
GEARMOTOR
WHITE
BLACK
Diagnostic sequence – Stage 9
The second error (2ND) LED will come on if an over-torque condition occurs while the 60M LED is still lighted.
The 2ND LED will indicate to the technician that 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 pressed.
INPUT
POWER
W
B
BIN SIGNAL
SWITCH
G
WATER
SENSOR
GRD
X
PWR
CONTROL
BOARD
GRD
L1
L1
L2
WHITE
M
BLACK
WHITE
COMPRESSOR
FAN
DRIVE
BLACK
M
1
S
L
60M
2ND
24V
COMMON
LINE VAC
BLACK
R
C
20M
L2
L2
COMPRESSOR
BIN T-STAT
DR
C
L2
L2
FAN
RESET
WTR
B-T
B-E
RED
RED
ORANGE
RED
BLACK
WHITE
BLACK
BLACK
S
L2
L1
3
4
GEARMOTOR
20
COMPRESSOR
SWITCH
WHITE
BLACK
Diagnostic sequence - Stage 10
If the water level in the float reservoir drops to an unacceptable level, the WTR LED will go out, shutting the
icemaker off. Also, the BT LED will come on, preventing the icemaker from restarting for twenty minutes. If water
is restored, the WTR LED will come back on and flash to alert the technician that water to icemaker has been
lost. The icemaker will then restart at the end of the 20 minute time delay. The flashing WTR LED can be cleared
by pressing the reset button.
INPUT
POWER
W
B
G
WATER
SENSOR
GRD
X
PWR
HI-TEMP SAFETY
T-STAT (W/C ONLY)
GRD
WHITE
L2
L2
COMPRESSOR
FAN
DRIVE
R
BLACK
M
1
S
L
20M
60M
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
2ND
24V
COMMON
LINE VAC
BLACK
RED
BLACK
COMPRESSOR
C
C
CONTROL
BOARD
L2
L2
FAN
M
DR
L1
L1
L2
WHITE
WTR
B-T
B-E
RED
RED
ORANGE
RED
BLACK
WHITE
BLACK
BLACK
S
BIN T-STAT
WHITE
RESET
COMPRESSOR
SWITCH
L2
L1
3
4
GEARMOTOR
WHITE
BLACK
y
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Refrigeration cycle
condenser
high side
service port
compressor
filter
drier
low side
service port
evaporator
thermostatic
expansion
valve
;;
yy
high
pressure
vapor
21
high
pressure
liquid
low
pressure
liquid
low
pressure
vapor
Air-cooled icemaker capacity/24 hours
Inlet Water Temperature °F/°C
Ambient Air Temperature °F/°C
F°
C°
50°
10°
60°
16°
70°
21°
80°
60°
16°
475
215
440
200
425
193
405
70°
21°
430
195
410
186
395
179
375
80°
27°
385
175
360
163
350
159
330
90° 100°
32° 38°
335 280
152 127
315 265
143 120
300 255
136 116
285 240
27°
90°
32°
100°
38°
110°
43°
184
390
177
375
170
360
163
170
350
159
340
154
330
150
150
310
141
300
136
290
132
129
270
122
260
118
255
116
109
235
107
225
102
215
98
110°
43°
230
104
215
98
210
95
200
91
195
88
190
86
180
82
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
Table 1 – Refrigeration pressure data*
Ambient
air temp.
60˚F
16˚C
65˚F
18˚C
70˚F
21˚C
75˚F
24˚C
80˚F
27˚C
85˚F
29˚C
90˚F
32˚C
95˚F
35˚C
100˚F
38˚C
105˚F
41˚C
110˚F
43˚C
Water temp.
at float
60˚F
16˚C
65˚F
18˚C
70˚F
21˚C
75˚F
24˚C
80˚F
27˚C
85˚F
29˚C
90˚F
32˚C
95˚F
35˚C
100˚F
38˚C
105˚F
41˚C
110˚F
43˚C
Suction pressure
PSIG
33
34
35
35
35
36
38
39
39
41
42
Head pressure
PSIG
188
201
213
225
238
251
266
280
298
315
175
* Note: Readings within 10% of above table values should be considered normal.
Table 2 – Compressor data
Compressor current draw
Ambient air temp.
Locked rotor amps
60˚F/15.6˚C
6.3A
70˚F/21.1˚C
6.5A
48.0
Table 3 – Gearmotor data
Gearmotor current
2.25A (nominal)
Locked rotor amps
14 amps
22
80˚F/26.7˚C
6.7A
90˚F/32.2˚C
6.9A
100˚F/37.8˚C
7.1A
Refrigeration system
Important:
All service on refrigeration system must be performed in accordance with all federal, state and
local laws that pertain to the use of refrigerants. It is the responsibility of the technician to
ensure that these requirements are met.
R22 icemaker charge specifications
Model
Charge
Refrigerant type
C125A, H125A (air-cooled)
24 oz
R22
!
Recharging of unit at other than factory specifications will void icemaker
warranty.
Refrigerant replacement requirements
1. Non-contaminated refrigerant removed from any Follett refrigeration system can be recycled and returned to
the same system after completing repairs. Recycled refrigerant must be stored in a clean, approved storage
container. If additional refrigerant is required, virgin or reclaimed refrigerant that meets ARI standard 700-88
must be used.
2. In the event of system contamination (for example, a compressor burn out, refrigerant leak, presence of noncondensibles or moisture), the system must be repaired, evacuated and recharged using virgin or reclaimed
refrigerant that meets ARI standard 700-88.
3. Follett Corporation does not approve of recovered refrigerants. Improper refrigeration servicing procedures
will void the factory warranty.
Evacuation
Evacuate the system to a level of 50 microns. When the 50 micron level is reached, shut the vacuum pump down.
Allow the system to sit for approximately 30 seconds. During this period the system should not rise above 1000
microns. If the system rises above 1000 microns, evacuate the system again. If the system rises above 1000
microns for a second time, check the system for leaks.
Ambients
Minimum
Maximum
Air Temperature1
50˚F/10˚C
100˚F/37.8˚C
Water Temperature2
40˚F/4.4˚C
90˚F/32.2˚C
1Ambient air temperature is measured at the air-cooled condenser coil inlet.
2Ambient water temperature is measured in the icemaker float reservoir.
23
Ice capacity test
Icemaker production capacity can only be determined by weighing ice produced in a specific time period.
1. Remove top panel and hopper lid of unit.
2. Run icemaker for at least 15 minutes.
3. Weigh and record weight of container used to catch ice.
4. Catch ice for 15 or 20 minutes.
5. Weigh harvested ice and record total weight.
6. Subtract weight of container from total weight.
7. Convert fractions of pounds to decimal equivalents (Ex. 6 lbs 8 oz = 6.5 lbs).
8. Calculate production using following formula:
1440 min. x wt. of ice produced
=
Production capacity/24 hr. period
Total test time in minutes
9. Calculated amount per 24 hours should be checked against rated capacity for same ambient and water
temperatures in Ice Production Tables.
Dispenser troubleshooting
!
Disconnect power to unit before putting hands or arms in storage area or attempting any
repair or service to equipment.
Before calling for service:
• Check that there is ice in dispenser bin area
• Check that congealed ice is not causing a jam
• Check that all switches and circuit breakers are on
• Check that all drains are clear
Troubleshooting the dispenser – lever models
Problem
1. Does not dispense ice.
Possible cause
a.
b.
c.
d.
Power switch off or faulty.
Faulty dispense switch.
Wheel motor malfunction.
Top lid off or ajar, opening interlock
switch.
Solution
a. Check switch. Turn on or replace if faulty.
b. Replace switch.
c. Check motor and capacitor, and replace
as required.
d. Make sure lid is pressing interlock switch.
2. Dispense wheel rotates a. Dispense switch contacts burned shut.
continuously.
a. Replace dispense switch.
3. Icemaker runs
continuously.
a. Faulty or incorrectly positioned bin stat.
a. Check for proper positioning. If stat does
not open when ice is placed on capillary
tube, replace stat.
4. Does not dispense
water.
a. Faulty water solenoid valve.
b. Faulty dispense switch.
c. Power switch off or faulty.
a. Replace water solenoid valve.
b. Replace dispense switch.
c. Check switch; turn on or replace if faulty.
24
Troubleshooting the dispenser – SensorSAFE™ models
Problem: Does not dispense ice and/or water
Action
PWR
1. Check LEDs on
control board.
2. Place cup under
drop zone.
LED status
CLN
Solution
ICE/WTR
OFF
OFF
OFF
Check circuit breakers and power switch. Restore
power or replace defective switch.
ON
ON
OFF
Press clean switch on lower left side of electrical
enclosure to return board to normal operation.
ON
OFF
OFF
Troubleshoot appropriate lens/sensor and replace
if required (see Lens/Sensor Troubleshooting).
ON
OFF
ON
Verify power on appropriate output terminal
(WTR, SOL or WM) on control board and replace
board if required. If board tests okay, troubleshoot
appropriate dispenser component.
Problem: Dispenses ice and/or water continuously
Action
PWR
1. Check LEDs on
control board.
LED status
CLN
Solution
ICE/WTR
ON
OFF
ON
Troubleshoot appropriate lens/sensor and
replace if required (see Lens/Sensor
Troubleshooting).
ON
OFF
OFF
If there is power on any output terminal (WTR,
SOL or WM) on control board, replace board.
Board guide
LEDs, when illuminated, indicate the following: PWR (board power), CLN (cleaning, no dispensing cycle), ICE (ice
dispensing activated), WTR (water dispensing activated).
Terminals: LI (incoming power, hot), L2 (neutral terminals), WTR (power terminal for water solenoid), WM (power terminal
for wheelmotor), CLN (terminals for clean cycle switch).
Note: SOL LED not used in 12 series dispensers.
Lens/sensor troubleshooting
Turn dispenser power switch off. Remove splash panel. Disconnect wires from output (WTR, SOL, WM) terminal(s) on
board. Gently remove appropriate sensor/mounting block assembly from panel by moving block sideways until edge of
block clears retaining tab of panel. Inspect lens and sensor assembly for foreign material and remove using non-abrasive
cleaner. Turn dispenser power on and test sensor by moving hands through activation area (no closer than 3/16"/1.9mm)
in front of sensor. If LED on board turns on and off, sensor is working properly and dispenser can be reassembled. If LED
does not come on, switch sensor leads on board and retest. If the opposite LED comes on, board is defective and must
be replaced. If LED does not come on, sensor is defective and must be replaced.
25
Troubleshooting the icemaker
Problem
Corrective action
Indicators/possible cause
1. Icemaker will not run.
System status:
compressor, gearmotor and
fan motor inoperative.
1. No power to unit.
2. Open bin level control.
3. Water OK LED (WTR) not on.
4. 20M or 2ND LED is on indicating that first
or second torque error has occurred.
5. Gearmotor locked up (immediate torque
error indicated by LEDs when board is
reset).
6. Centrifugal switch stuck in open or closed
position (immediate torque error indicated
by LEDs when board is reset).
1. Check that unit is plugged in, circuit
breakers are on.
2. Adjust or replace ice level control.
3. Check reservoir for water; restore
water to unit.
4. See Problem #6 below.
5. Repair or replace gearmotor.
6. Replace centrifugal switch.
2. Compressor will not run.
System status: gearmotor
and fan motor run.
1. Condenser coil plugged causing
overheating.
2. Defective starting capacitor.
3. Defective starting relay.
4. Open motor winding.
5. No power output from compressor output
terminal on control board.
1. Clean condenser coil and replace
overload if necessary.
2. Replace start capacitor.
3. Replace relay.
4. Ohm out windings and replace
compressor if necessary.
5. Check terminal connection and
replace control board if necessary.
3. Unit cycles intermittently.
System status:
compressor, gearmotor and
fan motor cycle.
1. Float reservoir running dry, sensing
probe signalling for system to shut down.
Control board will have flashing WTR
LED.
1. Check water supply to float and
float operation, ball valve and
strainer.
4. Low ice production.
Poor ice quality.
1. Dirty condenser coil.
2. Restricted air flow to condenser coil.
3. Mineral coated evaporator.
4. High ambient water supply and/or air
temperature.
5. Improper exhaust air provisions.
6. Faulty expansion valve.
7. Low refrigerant charge.
8. Superheat incorrect.
9. Inefficient compressor.
1.
2.
3.
4.
5.
6.
7.
8.
9.
26
Clean condenser.
Remove obstruction.
Clean evaporator.
Precool water and/or correct high
ambient temperature.
Provide proper exhaust air
provisions per Follett
specifications.
Replace expansion valve.
Check for leaks; repair, evacuate,
and weigh in correct charge.
Check that TEV sensing bulb is
securely clamped in place and not
damaged; check that insulated bulb
cover is in place.
Replace compressor.
Troubleshooting the icemaker
Problem
Indicators/possible cause
Corrective action
5. Water leaks from bottom of
evaporator.
1. O ring seal broken.
1. Replace O ring.
6. Icemaker runs for short
period of time and shuts
down on torque error.
System status: 20M or 2nd
LED is lit.
1. Kink in ice transport tube.
2. Bin level control remains in closed
position.
3. Ice transport tube ruptured internally.
4. Worn evaporator bearings.
5. Faulty centrifugal switch. Icemaker
torques out within 5 seconds of start-up.
6. Torque out occurs when storage bin fills
to capacity.
1. Eliminate kink and check tube
routing.
2. Adjust or replace control.
3. Replace complete run of ice
transport tube.
4. Inspect bearings for roughness or
binding, and replace if necessary.
5. Replace centrifugal switch.
6. Ensure that ice contacts bin
thermostat before backing ice up in
transport tube. See page 30 for
proper thermostat and ice tube
mounting.
7. Evaporator is iced up on
the outside. No ice
production.
System status:
compressor, gearmotor and
fan motor running.
1. Gearmotor running but no output
rotation.
2. Float reservoir empty.
3. Open gearmotor winding.
1. Check for broken gearmotor output
shaft or damaged gearbox.
2. Check for defective water sensor
(water OK (WTR) LED remains on
even when float empty or probe
removed from water).
3. Replace gearbox and motor.
8. Compressor cycles
intermittently.
System status: gearmotor
and fan motor run.
1. Compressor start relay in wrong
position.
2. Intermittent voltage from circuit board to
compressor.
1. Position relay with arrow or word
“top”.
2. Check for constant line voltage
output on board compressor
terminal and replace board if
intermittent.
3. Clean condenser coil.
4. Provide inlet and exhaust air
provisions per Follett specifications.
5. Replace compressor.
3. Clogged or dirty condenser coil.
4. Improper ventilation.
5. Defective compressor.
9. Unit runs but not making
ice.
System status:
compressor, gearmotor and
fan motor running.
10. Compressor and fan motor
will not run. Gearmotor
runs.
1. Clogged or dirty condenser coil.
2. Compressor not pumping.
3. Low refrigerant charge.
1. Clean condenser coil.
2. Replace compressor.
3. Check for leaks; repair, evacuate
and weigh in correct charge.
1. Compressor switch in off position.
2. No output on compressor and fan motor
terminals on control board.
1. Turn compressor switch on.
2. Replace control board.
27
Disassembly and replacement instructions
Dispense chute removal
stud assembly
1. Remove top cover.
2. Remove stainless front cover.
3. Slide plastic dispense chute cover up and out to
remove.
4. Remove four (4) push fasteners holding dispense tube
in place and remove tube.
agitator
spacer
Dispense wheel and drive bar removal
baffle
1. Remove all ice from storage area of dispenser.
2. Remove center thumbscrew, locking plate, two
wingnuts and backing plate from front of storage
hopper (see drawing at right).
3. Remove stud assembly, agitator, spacer, baffle, wheel
and drive bar in this sequence.
dispense wheel
Wheelmotor removal
drive bar
1. Remove dispense wheel and drive bar (see above).
2. Remove four (4) hopper/support plate mounting screws
and washers (see drawing below).
3. Move hopper assembly 1/2" to left.
4. Remove four (4) dispenser motor bracket mounting
screws and washers.
5. Loosen only two (2) lower screws on drive coupling
and remove from motor shaft.
6. Remove four (4) screws holding motor to mounting
bracket.
locking
plate
thumbscrew
MOVE HOPPER ASSEMBLY 1/2"
TO LEFT
mounting
screw &
washer
drive coupling
assembly
hopper/
support
plate
assembly
shield
mounting
bracket
dispense motor
dispense motor mounting
screws & washers
28
wingnut
backing plate
Evaporator disassembly
Note: The upper bearing, lower bearing and auger assemblies must be replaced as assemblies. The bottom
and top bearing assemblies cannot be field assembled to factory specifications.
1. Disconnect power to icemaker.
2. Shut off water to icemaker.
3. Drain evaporator and float tank.
compression nozzle
4. Disconnect plastic tubing from evaporator water inlet.
5. Disconnect ice transport tube from compression nozzle.
6. Remove nut from upper vee band coupling and remove from top of
evaporator (pg. 39).
7. Lift top bearing assembly straight up with a slight rocking motion and
drip guide
remove.
8. Remove ice compression loop located at top of auger.
9. Lift auger straight up and out of evaporator.
10. Remove nut and lower vee band coupling from bottom of evaporator.
11. Lift evaporator to clear bottom bearing assembly.
12. Loosen hex head bolt in side of mounting base with 5/16" wrench and lift
lower bearing assembly.
13. Remove condensate shield.
14. Remove 4 Allen head machine screws holding mounting base to gearbox.
15. If replacing evaporator, remove compression nozzle from evaporator port.
Evaporator reassembly
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Clean gearmotor boss, output shaft and shaft well.
Degrease OD of gearmotor boss.
Apply 242 Loctite to OD of boss and install evaporator mounting base.
Fill gearmotor shaft well with food grade grease.
Install condensate shield and seat against gearmotor boss.
Install bearing O ring in groove in evaporator mounting base.
Lower bottom bearing assembly into evaporator mounting base.
While maintaining a slight downward pressure on bottom bearing
assembly, tighten hex head bolt with a 5/16" wrench.
Position evaporator over lower bearing assembly and align
grooves with pins in bearing assembly.
Apply grease
Align lower portion of compression nozzle drip guide inside
in well
evaporator drain pan.
Install vee band clamp and nut.
Place auger in center of evaporator and rotate to mate with spline.
Install ice compression loop, orienting loop as shown on page 36.
Install upper bearing and seal assembly, rotating bearing to slip
pin into auger slot.
Install upper vee band clamp and nut.
If evaporator was replaced, reinstall compression nozzle on new.
Loctite
Gearbox and motor replacement
1.
2.
3.
4.
5.
Disassemble evaporator as described above.
Remove gearmotor drip cap.
Remove gearmotor cover plate and disconnect wires.
Remove Heyco wire bushing and pull wires out.
Remove 4 screws holding gearmotor mounting plate to base of icemaker and lift gearbox and motor clear of
icemaker.
6. Remove machine screws holding mounting plate to motor.
7. Install new gearbox and motor in reverse order.
29
Panel removal
top cover
front cover
screw
Top cover: Lift cover up and off Velcro strips.
Front cover: Remove 2 screws. Lift cover up and
forward to unhook from keyhole slots and clear tabs on
bottom of cover.
back panel
screw
left hand
side panel
right hand
side panel
screw
louver
panel
splash panel
hopper support lid
screw
Splash panel: Remove 2 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 RH side, remove side
louver panel by lifting up and pulling forward on panel.
Fan removal
mounting
screws
(a) Remove 4 fan mounting screws (b) Rotate fan mounting bracket (c) As fan assembly is being pulled
toward front, rotate assembly
toward back of unit and pull
and 3 drain tubes.
clockwise as shown above.
fan assembly toward front of
unit.
30
Thermostat and ice transport tube replacement
ice tube
retainer
.25
ice tube
gasket
capillary
tube
bracket
Ice transport tube: tube
may extend a maximum
of 1/4" into ice bin
3"
2"
.50 TYP
Thermostat: hand bend
cap tube end as shown
Top view
Ice transport tube replacement
1.
2.
3.
Soak end of transport tube in hot water to soften.
Push tube onto evaporator port.
Position clamp behind lip on evaporator port and tighten clamp.
31
Parts
Dispenser exterior
11
10
7
1
12
4
3
2
5
6
8
Part #
502393
502401
502400
502402
502412
502411
502410
502394
502399
502415
502397
502396
502395
502422
502391
502514
9
14
13
Description
Cover, front
Cover, dispense assembly, water
Cover, dispense assembly, ice
Louver, intake
Grille, drain pan
Drain pan, plastic
Drain pan assembly (includes base, pan and grille)
Panel, rear
Leg kit, 4" (101mm), adjustable – set of 4
Fitting, water inlet
Lid, top panel, plastic
Panel, right side
Panel, left side
Drain tube assembly, wall mount w/drain pan
Drain tube assembly, countertop
Drain tube assembly, wall mount w/o drain pan
32
Reference #
1
2
3
4
Not shown
5
6
7
8
9
10
11
12
13
14
Not shown
Wheelmotor and drive system
7
9
12
5
13
6
cover interlock
switch
8
10
11
6
9
10
2
4
3
5
16
14
15
Top view
1
Part #
502580
502384
502385
501273
502414
502387
502390
502388
502386
502406
502404
502405
502413
500504
502389
502381
502416
502423
502408
502537
Description
Motor, wheel (includes 502537)
Drive shaft extension
Coupling (includes key)
Key, 1/8" sq x 1-1/4 lg
Baffle, ice (securing hardware included)
Wheel, agitator
Rod, threaded (includes knurled nut)
Drive bar
Agitator, rotating
Bracket, capillary tube
Retainer, ice tube
Gasket, ice tube
Assembly, hopper (includes drain fitting)
Float valve and reservoir
Bar, spacer
Fitting, hopper drain (includes nut)
Switch, interlock
Support plate, motor
Cover, electrical box
Shield, gearmotor
33
Reference #
1
2
3
4
5
6
7
8
9
See page 28
See page 28
See page 28
10
11
12
Not shown
13
14
15
16
Dispense chute and splash panel — lever model
13
11
16
14
9
12
5
15
6
water solenoid assembly
1
8
18
7
10
ICE
3
2
4
WA
TE
R
17
Part #
502513
502249
502247
502417
501100
502409
502418
502057
501250
502427
502561
502562
502419
502243
502420
502421
502401
502400
Description
Chute assembly, ice
Chute, water
Bracket, dispense chute (includes four (4) 502057 fasteners)
Lever
Thumbscrew
Switch, dispense, water/ice (includes nut, boot and spacer)
Boot, dispense switch button (mounts over the dispense button)
Fastener, dispense chute assembly (4 required)
Screws, dispense lever
O ring
Fitting, 1/4" tube
Fitting, 3/8" tube
Support bracket, solenoid
Valve, solenoid water
Tube, water solenoid
Solenoid, assembly (includes solenoid, fittings, tube & mounting bracket)
Cover, dispense assembly, water
Cover, dispense assembly, ice
34
Reference #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Dispense chute and splash panel — SensorSAFE™ model
12
9
1
8
3
7
11
6
ICE
WA
TE
R
10
5
3
2
4
Part #
Description
502513
502249
502247
502251
502252
502241
502239
502240
501100
502401
502400
502421
Chute assembly, ice
Chute, water
Bracket, dispense chute (includes four (4) 502057 fasteners)
Graphics, ice lens
Graphics, water lens
Assembly, sensor and mounting block (includes 502239 and 502240)
Block, sensor mounting
Sensor
Thumbscrew
Cover, dispense chute, water
Cover, dispense chute, ice
Solenoid assembly (includes solenoid, fittings, tube & mounting bracket
(see page 34 for exploded view)
Reference #
35
1
2
3
4
5
6
7
8
9
10
11
12
Icemaker components
Part #
501581
501187
502116
500504
502078
502221
501820
502515
501582
502222
501992
500376
500474
500672
501188
501579
501583
501191
500623
502079
502383
502403
501176
502521
502407
Description
Drier
Coil, condenser
Water sensor
Float valve & reservoir
Fitting, plastic, float valve (includes sleeve & stem)
Compression nozzle, without drain
Evaporator (see page 39 for detailed drawing)
Shroud, condenser coil
Drain pan, evaporator
Valve, expansion, thermal
Valve, shut-off, water
Gearbox & motor assembly, 115V, 60Hz
Strainer, water
Fan blade
Motor, fan, 115V, 60Hz
Bracket, fan motor
Overload, compressor, 115V, 60Hz
Compressor, 115V, 60Hz
Tubing, plastic, food grade, 1/2 ID (sold by the foot)
Tubing, plastic, 5/8 ID x 13/16 OD (sold by the foot)
Tubing, polypropylene, reservoir supply (sold by the foot)
Reservoir mounting bracket
Tube, ice transport
Insulation, ice tube (12"/306mm required)
Bracket, gearmotor mounting
Cord and plug, power
Water filter kits and cartridge
Part#
AFSYSTMFL43
AFCARTFL4S
AFPRECART
Description
Follett QC4-FL4S water filter system (includes FL4S primary
cartridge and head. coarse pre-filter and head, pressure gauge,
flushing valve; assembled and installed on mounting bracket)
Follett FL4S primary replacement cartridge
Everpure coarse pre-filter cartridge
36
Reference #
1
2
3
4
Not shown
5
6
Not shown
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
21
22
5
3
4
6
8
7
10
20
17
2
1
Right side view
24
Rear view
12
CHARGE 24 OZS.
REFRIGERANT R-22
207959
18
DO NOT
CAUTION
PARTS
PANELS REMOVED.
OPERATE UNIT WITH
HAZARDOUS MOVING
STOCK MODULE LC125A
14
13
23
19
15
16
11
9
OPERATE UNIT WITH
PANELS REMOVED.
Top view
(lower section)
Left side view
37
Electrical components
2
1
10
6
7
9
5
4
8
Top view
Side view
Part #
501586
501588
502331
502116
502392
502209
502209
502409
502242
500514
3
Description
Capacitor, start, compressor, 115V, 60Hz
Relay, start, compressor, 115V, 60Hz
Board, control circuit, 115V, 60Hz
Water sensor
Switch, on/off, compressor
Switch, rocker, power
Switch, rocker, bin signal
Switch, cleaning, SensorSAFE models
Control board, SensorSAFE models
Bin thermostat
38
Reference #
1
2
3
4
5
6
7
8
9
10
Evaporator
Part #
500486
501862
502081
500744
501063
501080
501053
502227
501992
501993
501190
502220
502221
Description
Reference #
Coupling, vee band, includes nut
1
Bearing assembly, top
2
Loop, ice compression, padded
3
(For non-thick-walled evaporators, call
service department before ordering)
Loop, ice compression, beveled
3
Auger, double chamfered
4
Evaporator (includes 502110)
5
Seal, spline
6
O Ring, bearing housing
7
Bearing assembly, bottom (includes
spline seal and O Ring)
8
Shield, condensate
9
O Ring, mounting base
10
Screw, Allen 1/4 20 x 1/2 (set of 4)
11
Mounting base, evap. (includes 501063)
12
Bolt, mounting base
Not shown
Gearbox & motor assembly
13
Gearbox & motor assbly, 230V
13
Mounting base, gearbox
Not shown
Compression nozzle, w/double drain
below
Compression nozzle, w/single drain
below
501289
502226
502228
500680
501111
Compression nozzle w/o drain no longer
available, replace with 502221.
Drain pan, evaporator
See pg. 17
Clamp, compression nozzle and screw
14
Drip guide, compression nozzle w/o drain
15
Tubing, compression nozzle w/drain
16
Grease, Chevron SRI-2, 14 oz
Not shown
502110
502219
502107
501079
500496
502137
502220
Compression nozzle with
double drain
502221
Compression nozzle with
single drain
1
2
3
4
5
6
7
8
1
9
10
11
12
13
Compression nozzle without
drain (original)
14
14
15
16
39
Detail - ice
compression
loop installation
Gearbox and motor assembly
Part #
500937
501988
500765
500722
500854
500720
500893
500894
500895
500892
500877
500721
501990
500724
500841
500797
500781
500798
500878
501989
501994
501991
501144
501171
501208
500802
Description
Washer, lock
Cover, gearcase
Gasket, gearcase cover
Seal, output shaft
Bearing, cup
Bearing, cone
Shaft, output
Gear, output
Key, Woodruff
Ring, retaining
Spacer
Spacer
Seal, input shaft
Bearing, ball
Washer, thrust
Bearing, needle (2 required)
#2 Gear/#3 pinion assembly
Shaft, #2 gear
#4 Gear/#5 pinion assembly
Gearcase
Vent plug
Bearing, ball, sealed
Bearing, rotor, top
Switch, centrifugal
Overload, thermal
Oil, gearcase (1 pint)
Reference #
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
24
Not shown
Not shown
Not shown
Not shown
Miscellaneous parts
Part #
501860
501781
501111
502538
Description
Pump, condensate
Regulator, water pressure (25 PSI)
Grease, Chevron, SRI-2, 14 oz tube
Carton and foam packs
801 Church Lane • PO Box D • Easton, PA 18044
Toll free (800) 523-9361 • (888) 2-FOLLETT
(610) 252-7301 • Fax (610) 250-0696 • www.follettice.com
U® L
®
207805R02
12/02
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