Follett U155 User Manual

U155 Series  
Ice and Beverage Dispensers  
Installation, Operation and  
Service Manual  
Manual load units  
Automatic load units  
with one icemaker  
Automatic load units  
with two icemakers  
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  
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207896  
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Cool Ideas For Ice Management  
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 take a  
moment to review this manual before beginning the installation of the dispenser. Should you have any questions or  
require technical help at any point, please call our technical service group toll-free, (800) 523-9361 or  
(888) 2-FOLLETT, or (610) 252-7301.  
Before you begin  
After uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If  
damage is found, notify the shipper immediately and contact Follett Corporation so that we can help in the filing  
of a claim, if necessary.  
Check your paperwork to determine which model you have. Follett model numbers are designed to provide  
information about the type and capacity of Follett ice dispensing equipment. Following is an explanation of the  
different model numbers in the U155 Series.  
U155BR5AXR  
Ice dispense chute location R = right side, L = left side  
Presence of an X = 10 soda valves  
Condenser type A = air cooled, W = water cooled  
Remote icemaker(s) capacity and refrigerant 5 = 400 lbs (181kg)/day, R22  
10 = 800 lbs (363kg)/day, R22  
B = beverage bath equipped. Absence of a B = no integral beverage cooling  
N = no beverage rail or valves  
Approximate storage capacity in lbs  
Dispenser configuration U = undercounter  
Important cautions  
Storage area of dispenser 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 manual load dispensers can accommodate most cube/cubelet ices up to 1” square, or Follett  
compressed nugget ice. Crushed, flake, bagged, nugget or congealed ice cannot be used. Use of these  
ices can jam dispenser and void warranty. Separate any “waffle-like” sections of cubes before adding  
to dispenser. For ice compatibility questions, please call Follett customer service toll-free at (800) 523-  
9361 or (888) 2-FOLLETT, or (610) 252-7301.  
Follett recommends use of an activated carbon filter for units equipped with icemakers.  
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.  
Specifications  
Electricity  
Each icemaker and dispenser requires separate circuit with electrical disconnect within 10 feet (6  
meters). Equipment ground required. Standard electrical - 115V, 60 Hz, 1 phase. Max. fuse dispenser 15 amps;  
ea. icemaker 20 amps  
Model  
number  
Icemaker  
amperage  
Dispenser  
amperage  
U155, U155X  
U155B, U155BX  
U155R5A/W, U155R5A/WX  
U155BR5A/W, U155BR5A/WX  
U155R10A/W, U155R10A/WX  
U155BR10A/W, U155BR10A/WX  
2.4 amps  
4.4 amps  
2.4 amps  
4.4 amps  
2.4 amps  
4.4 amps  
11.0 amps  
11.0 amps  
11.0 amps ea (2)  
11.0 amps ea (2)  
2
Plumbing  
Dispenser - 3/4" PVC slip joint for hopper drain  
3/4" PVC pipe nipple for beverage drain pan  
3/4" PVC pipe nipple for bath overflow  
Note: Drains should be hard piped and insulated. Maintain at least 1/4" per foot (6mm per  
30.4cm run) slope on drain line run.  
Icemaker - Refer to Icemaker Installation Manual packed with icemaker for installation instructions  
1/4" FPT water in  
1/2" MPT drain  
3/8" FPT condenser inlet (water cooled condenser only)  
1/2" FPT condenser drain (water cooled condenser only)  
Water disconnect within 10 feet (3 meters) of dispenser is suggested for automatic load units.  
Beverage connections  
Dispenser is provided with 1/4" syrup, 3/8" carbonated water and 3/8" plain water pigtails  
Clearance and access information  
51" (1296mm) above counter  
12" (305mm) on side opposite tower, below counter  
Counter front or rear panel must be removable for service access to both sides of dispenser and  
icemaker(s), (if any)  
Below counter access to drain clean-out required on utility side of dispenser  
See Icemaker Installation Manual packed with icemaker(s) for clearance requirements for automatic load  
dispensers  
37.25"  
(947mm)  
(10 valve unit)  
31.25"  
27.375"  
(696mm)  
(794mm)  
(8 valve unit)  
21.75"  
(553mm)  
counter top  
ice transport  
tube entrance  
beverage  
waterbath  
overflow  
49.75"  
(1264mm)  
3.5"  
(89mm)  
beverage  
drain pan  
drain  
beverage line  
air break*  
28"  
(712mm)  
3/4"  
PVC  
slip  
25.8"  
(656mm)  
18.5"  
17"  
(432mm)  
joint  
drain  
(470mm)  
6"  
electrical  
(153mm)  
connections  
18.9"  
12"  
min  
6"  
min  
8.75"  
air  
(481mm)  
bin  
power  
(223mm)  
break*  
signal  
Manual load units  
*DO NOT  
3/4 PVC  
CONNECT TO  
slip joint  
drain  
DRAIN SYSTEM  
Automatic load units with 1 icemaker  
Automatic load units with 2 icemakers  
Side view - right hand dispenser  
(side opposite dispense tower)  
Front view units with up to 10 beverage valves  
3
Field wiring diagrams  
manual load units  
Electric power source  
(115 volts)  
Standard electrical - 115V, 1 Ph, 60 Hz,  
max. fuse size 15 amps  
IMPORTANT  
Field wiring diagram is intended to aid  
electrician or technician in understanding  
how equipment works. All field wiring  
must be installed in accordance with NEC  
and local electrical codes.  
BL  
W
GND  
X
GRN  
U155 dispenser  
15 amp fused  
disconnect  
Right junction box  
Left junction box  
LEGEND  
Wirenut field  
connections  
Equipment  
ground  
W
BL  
Y
X
BL  
BL - black  
W - white  
R
GND  
GRN  
GRN - green  
BL - blue  
R - red  
Y - yellow  
automatic load units  
LEGEND  
IMPORTANT  
Wirenut field  
Field wiring diagram is intended to aid  
electrician or technician in understanding  
how equipment works. All field wiring  
must be installed in accordance with NEC  
and local electrical codes.  
connections  
Equipment  
ground  
X
(115 volts)  
Electric power source  
GND - ground  
B - black  
W - white  
GRN - green  
BL - blue  
R - red  
GND  
XGRN  
BL  
W
Electric power source  
(115 volts)  
Y - yellow  
B
W
Icemaker #1  
GND  
X
GRN  
Standard electrical - 115V, 1 Ph, 60 Hz,  
max. fuse size 15 amps  
Upper junction box  
Lower junction box  
W
B
GRN  
U155 dispenser  
15 amp fused  
disconnect  
B
W
Left junction box  
Right junction box  
X
GND  
15 amp fused  
disconnect  
W
B
(24 volts)  
BL  
Y
R
BL  
W
GND  
X
GND  
GRN  
GRN  
(115 volts)  
(24 volts)  
Icemaker #2 (optional)  
Lower junction box  
Upper junction box  
On all models with remote  
W
B
GRN  
W
B
icemaker(s), the black wire on the  
icemaker control boards(s) LINE  
VAC terminal must be moved to the  
24V terminal.  
15 amp fused  
disconnect  
GND X  
(24 volts)  
4
Installation  
Installing U155 dispenser in counter  
All U155 dispensers must be installed level in both directions and supported  
from below with 6" - 9" (153 - 229mm) adjustable leg accessory provided, or  
channels installed on site. Do NOT hang dispenser on flange.  
!
1. Check that dispenser location meets all requirements in this manual and cut counter as shown. (NOTE: Different  
cut-outs for 8 and 10 valve units!)  
2. Block up area below counter cut-out to support dispenser when lowered into place.  
3. For automatic load dispensers, disconnect ice transport tube from bracket in storage area of dispenser. (Since this  
tube must be reinstalled in bracket after dispenser is dropped into counter, note how tube is held by bracket tabs  
before disconnecting.)  
4. Carefully lower dispenser into counter until it rests on support blocks.  
5. Adjust height from below until dispenser flange rests flush with counter.  
6. Apply a bead approximately 1/4" (6mm) in diameter of NSF listed silicone sealant (Dow-Corning RTV-732 or  
equivalent) around perimeter of dispenser where it meets counter and smooth sealant to a 1/8" (4mm) radius.  
7. Install a hard drain line, maintaining at least a 1/4" per foot (6mm per 30.4cm run) slope, and insulate line to  
prevent condensation.  
PVC pipe is suggested. Care must be taken in sweating any metal drain pipe  
used. Excessive heat applied while sweating metal pipe may melt plastic  
fitting on dispenser.  
!
8. Make electrical connections in accordance with applicable wiring diagrams provided, as well as NEC and local  
codes. Provide disconnects within 10 ft (3m) of dispenser and icemaker for servicing.  
Counter cut-out  
units with 10 valves  
Counter cut-out  
units with up to 8 valves  
26.25"  
+ .125"  
- .125"  
26.25"  
+.125"  
- .125"  
+.125"  
- .125"  
+.125"  
- .125"  
36.375"  
30.375"  
(772mm)  
+3mm  
- 3mm  
+3mm  
- 3mm  
(924mm)  
(667mm)  
+3mm  
- 3mm  
(667mm)  
+3mm  
- 3mm  
Front of counter  
Front of counter  
5
Installing remote icemaker (automatic load units only)  
Correct installation of remote icemaker(s) is critical to proper performance  
of icemaker and dispenser.  
!
Check bin signal on icemaker control board for 24 volt connection. Switch if  
necessary.  
Refer to installation manual packed with icemaker for important details on  
ice transport tube run, ventilation requirements and other installation  
requirements. Failure to comply with instructions will void warranty.  
1. Position icemaker in desired location.  
2. Push one end of ice transport tube(s) through hole(s) provided in side of dispenser.  
3. Route tube into ice tube bracket inside dispenser and engage bracket tabs in holes located in end of ice  
transport tube(s). (See drawings below.)  
4. Proceed with ice transport tube installation from dispenser to icemaker in compliance with instructions  
contained in icemaker installation manual packed with icemaker.  
Ice tube retainer bracket  
ice tube  
thermostat  
Front view**  
Tabs in ice tube  
retainer bracket  
**Bracket for right hand unit  
shown. On left hand units,  
thermostat installed on right  
side of bracket (side  
engage holes in ice  
tube and hold tube  
in place  
opposite dispense tower).  
1"  
2.54 cm  
ice tube  
Side view  
6
Connecting beverage lines  
1. Connect syrup and water lines, following drawings for appropriate model U155 dispenser. Non-carbonated water line  
will be labeled water.  
2. Clean and sanitize beverage lines in accordance with cleaning instructions that follow.  
7
2
10 9 8  
6 5  
1
4 3  
Valve position #1 is always next to ice  
tower. Right-hand unit shown.  
NOTES:  
Syrup lines are numbered and correspond to the valves as shown in drawing  
above. Valve one is always adjacent to ice tower.  
Numbered beverage lines extend out from side of dispenser opposite ice chute.  
To start-up and operate dispenser  
1. Follow detailed cleaning instructions in service manual before operating dispenser.  
2. Follow instructions for beverage line hook-up, and restrictions on ice that can be manually filled into a Follett  
dispenser.  
3. On units with Follett integral ice-water bath beverage cooling (Bmodels) only, slowly pour water into ice-waterbath  
area to fill empty bath and submerge coils. Coils are submerged when water starts to flow out overflow drain. DO  
NOT SPLASH WATER ON ELECTRICAL BOX. Once filled with water, add ice to bath until ice covers top of  
waterbath.  
4. For manual load units, remove front drain pan or rear lid and fill storage area with compatible ice.  
Follett manual load dispensers can accommodate most cube/cubelet ices up  
to 1" square and Follett compressed nugget ice. Crushed, flake, nugget,  
bagged or congealed ice cannot be used. Use of these ices can jam dispenser  
and void warranty. Separate any waffle-likesections of cubes before adding  
to dispenser. For questions about ice compatibility, call Follett's customer  
service group toll-free at (800) 523-9361 or (888) 2-FOLLETT, or (610) 252-7301.  
!
5. Turn power switch located on control box to "ON" position.  
6. For automatic fill units, follow detailed instructions in icemaker installation section of installation manual, then turn  
icemaker (bin signal) switch(es) located on control box to "ON" position and begin to make ice.  
7. When dispenser has at least 6" (155mm) of ice in storage area, press "PUSH FOR ICE" lever or button to ensure  
that dispenser is operating properly. NOTE: IF ADDITIONAL START-UP INFORMATION IS NEEDED, CALL  
FOLLETT CORPORATION AT (800) 523-9361.  
7
User information  
How the dispenser works  
Follett's U155 Series ice dispensers are available in manual load configurations (using ice from another source)  
or automatic load configurations, fed from one or two Follett 400 lb (181kg)/day remote icemakers.  
In all models, ice is stored below the counter in the dispenser storage area. When the dispense lever or button is  
pushed, the dispense motor is activated. This causes the wheel assembly in the storage area to turn, moving ice  
to the vertical auger assembly, which carries ice up to the dispense chute where it drops by gravity into the  
container.  
In automatic load units, ice is manufactured in either one or two Follett remote icemakers. These icemakers may  
be located up to 20 f. (6m) away from the dispenser. As water freezes to the inside walls of the icemaker  
evaporator, a rotating stainless steel auger removes ice and carries it to the top of the evaporator assembly  
where it is compressed and extruded through an outlet port. The extruded ice is then pushed through the tube to  
the storage compartment of the dispenser. A level fill circuit maximizes fill in the storage area by rotating the  
wheel at intervals until the bin is completely filled. When the bin is filled, a bin stat shuts the icemaker off to avoid  
overfilling of the bin. The icemaker will restart after 20 minutes if the bin is calling for ice.  
Units with integral ice-water bath beverage cooling are equipped with a water bath timer circuit that activates the  
water bath pump for 35 minutes when ice lever or button is activated, or when the ice water bath periodically calls  
for more ice.  
Cleaning  
Warning: Always disconnect power before cleaning dispenser.  
!
Using solutions below, clean and sanitize storage area and beverage lines before starting up unit and on a  
routine basis as noted below.  
Solution A:  
Prepare a cleaning solution (200 ppm of available chlorine content) of Ecolab Mikro-chlor  
Cleaner or equal chlorinated detergent. Cleaning solution temperature must be at  
75˚ – 125˚F (24˚ to 52˚C).  
Solution B:  
Prepare a sanitizing solution (50 ppm of available chlorine content) of Ecolab Mikro-chlor  
Cleaner or equal chlorinated detergent. Sanitizing solution temperature must be at  
75˚ – 125˚F (24˚ to 52˚C).  
Cleaning bin before use  
1. Wipe storage area with Solution A.  
2. Rinse thoroughly with clear, potable water.  
3. Wipe with Solution B to sanitize.  
8
Cleaning and sanitizing beverage system before use  
Cleaning  
Prepare 6 gallons (23 liters) of cleaning Solution A. Fill a clean product tank with cleaning solution. Fill a  
second clean product tank with potable rinse water.  
1. Disconnect all syrup lines from product containers.  
2. Connect syrup circuit #1 to cleaning solution tank, pressurize tank to 20-50 psi, and dispense 1/2  
gallon (2 liters) of solution into a suitable container from valve #1.  
3. Connect syrup circuit #1 to rinse tank, pressurize tank to 20-50 psi, and dispense 3 gallons (11 liters)  
into a suitable container from valve #1.  
4. Repeat this cleaning and rinsing for all syrup lines.  
5. Remove diffusers and nozzles from valves, soak in cleaning solution, rinse well and reinstall.  
Sanitizing  
Prepare 6 gallons (23 liters) of sanitizing Solution B. Fill a clean product tank with this solution.  
1. Connect one tank to syrup circuit #1. Dispense 1/2 gallon (2 liters) from valve #1.  
2. Repeat for all remaining circuits, allowing sanitizing solution to remain in all circuit lines for 15  
minutes.  
3. Connect a clean, empty tank (pressurized to 50 psi) to each syrup circuit and blow out sanitizer by  
operating each valve.  
4. Remove diffusers and nozzles from valves, soak in sanitizing solution for 15 minutes, rinse well and  
reinstall.  
5. Reconnect all lines and dispense product through valves to purge any remaining sanitizer.  
Failure to remove all sanitizer may result in health hazard.  
!
Periodic cleaning of dispenser  
Recommended daily cleaning of drain pan  
DO NOT run plastic parts (drain pan, dispense chute cover,  
dispense wheel) through a dishwasher.  
!
1. Remove all debris from drain pan.  
2. Pour 1 gallon (4 liters) hot water into drain pan to keep drain lines clear.  
Recommended weekly cleaning  
1. Remove drain pan and grill and wash with Solution A. Rinse thoroughly.  
2. Remove nozzles and diffusers from valves, soak for at least 10 minutes in cleaning Solution A, rinse, sanitize  
with Solution B and reinstall.  
3. Pour a solution of one cup (8oz/237ml) household bleach mixed with one gallon (3.8 liters) hot water into drain  
pan to help prevent algae growth in drain lines.  
9
Recommended quarterly cleaning (every 3 months)  
On push button units, remove dispense switch from dispense chute  
cover before cleaning chute cover.  
!
1. Turn power switch to "OFF" position and remove top from dispenser.  
2. Remove ice from storage area.  
3. Remove dispense chute cover, chute, auger motor assembly, auger and auger tube (see page 11).  
4. Remove drain pan, grill, dispense wheel and cover plate (see page 12).  
5. Clean all components and bin storage area with Solution A, rinse thoroughly with clear water and sanitize  
with Solution B.  
6. Remove nozzles and diffusers from valves, soak for at least 10 minutes in cleaning Solution A, rinse, sanitize  
with Solution B and reinstall.  
7. Clean area below wheel and stainless cover plate with Solution A, rinse and sanitize with Solution B.  
8. For units with integral ice-water bath beverage cooling only:  
Remove side access panel opposite ice tower.  
Lower drain tube found on utility connection side of dispenser and drain ice-water bath.  
Use a bottle brush to clean coils with Solution A, rinse and sanitize with Solution B.  
Reposition water bath drain line in "UP" position so water does not drain out.  
Pour Solution A into water bath until it flows out overflow drain.  
Turn power ON and push dispense lever or dispense button back in "dispense" position.  
Allow pump to run for 2 minutes to clean pump and pump lines.  
Turn power OFF.  
Drain bath and replace drain tube in "UP" position to avoid siphoning water bath water.  
Putting unit back in service after quarterly cleaning  
1. On units with integral beverage cooling, fill ice-water bath with water until water spills out of bath overflow  
drain.  
2. Reassemble components.  
3. For manual load units, fill unit with an approved ice (see caution statement on page 1).  
4. For automatic load units with R5A/W (R22 refrigerant) icemakers, turn bin signal switch(es) and dispenser  
power switch to "ON" position and allow storage area to fill.  
5. Push dispense button or lever to test that dispenser is functioning properly.  
Quarterly cleaning of icemaker system  
Units equipped with icemakers require cleaning of icemaker system at least every three months, and  
more often if local water conditions dictate. Failure to clean icemaker system will result in decreased  
performance and potential damage to icemaker. Refer to Icemaker Operation and Service Manual.  
10  
Disassembly instructions for periodic cleaning  
Dispense chute cover removal  
1. Remove top cover.  
2. Push chute cover up vertically to slip off  
holding tab.  
3. After clearing tab, pull chute cover forward  
to remove.  
RH, 8-valve unit  
front view  
chute  
cover  
valves  
top cover  
Dispense mechanism assembly  
drain pan  
assembly  
removal  
1. Remove top cover.  
2. Remove chute cover (see above).  
dispense  
chute  
3. Remove auger motor assembly (see above).  
4. Remove quick release pins from the ice chutes  
and gates, then unplug wires from solenoids.  
5. Lift dispense mechanism up and off auger tube.  
Auger and auger tube removal  
(see drawing p. 12)  
1. Remove auger motor and dispense mechanism  
assembly (see above).  
2. Pull auger upward to clear auger tube.  
3. Lift auger tube upward to clear dispenser top.  
4. Slide tube and bearing plate through auger  
tube gasket.  
Dispense assembly, top view  
(RH unit with bath shown)  
ice chute  
gate  
solenoid  
Dispense wheel removal  
1. Remove drain pan assembly and bin access cover.  
2. Remove center thumbnut and threaded rod on  
dispense wheel assembly and lift wheel out front  
access opening.  
quick  
release  
pin  
Auger motor assembly removal  
1. Remove top cover.  
2. Remove one thumbnut on rear of motor bracket.  
3. Lift motor bracket up and unplug electric  
quick disconnects.  
quick  
release  
pin  
4. Remove motor assembly.  
11  
auger motor  
(side view)  
auger  
dispense wheel  
auger tube  
stationery  
agitator  
rotating  
agitator  
auger bearing  
plate  
wheel  
motor  
baffle  
plate  
wheel motor  
mounting plate  
front view  
Service  
Disassembly instructions for service requirements only NOT required for  
any cleaning procedure.  
Dispense wheel motor removal (see drawing above)  
1. Remove drain pan, bin access cover and dispense wheel.  
2. Remove stainless steel baffle plate under dispense wheel.  
3. Remove two screws holding wheel motor bracket on bin.  
4. Lift plate and motor up.  
5. Unplug electric quick disconnects from motor.  
6. Lift motor and mounting plate out front access opening.  
12  
Wiring diagram -  
Left hand unit  
Right hand unit  
L2  
COUNTERCLOCKWISE ROTATION  
PL2-1  
PL2-2  
RED RED  
PURPLE  
L2  
AUGER MOTOR  
AUGER MOTOR  
CLOCKWISE ROTATION  
PL2-2  
L1  
DISPENSE  
R1  
PL2-1  
RED RED  
PL1-1  
PL1-2  
NO  
BLACK  
GRAY  
C
BLACK  
ORANGE  
BLACK  
BLK  
BLK  
WHITE  
PURPLE  
WHITE  
M1  
M1  
C
C
4
NO  
NO  
7
POWER  
SWITCH  
REAR  
TOP LID  
SWITCH  
DRAIN  
PAN  
LID  
PL2-3  
PL2-3  
PURPLE  
SWITCH  
SWITCH  
BLUE  
BLUE  
BLUE  
BLUE  
PURPLE  
L2  
WHITE  
WHITE  
MTR  
ORANGE  
BATHPUMP MOTOR  
PL5-1 PL5-2  
READY  
LID  
GRAY  
M3  
PUMP  
BLK  
BATH CONTROL  
BOARD  
(35 MIN ON DELAY)  
BEVERAGE COOLING OPTION  
WHEEL MOTOR  
WHEEL MOTOR  
CLOCKWISE ROTATION  
PL3-2 PL3-3  
COUNTERCLOCKWISE ROTATION  
AUTOFILLR2  
PURPLE  
AUTOFILLR2  
PURPLE  
PL3-2  
RED  
PL3-3  
RED  
BLK WHT  
RED  
RED  
BLK WHT  
7
M2  
M2  
1
RED  
1
7
AUTOFILL R2  
PL3-1  
BLUE  
PL3-1  
BLUE  
ORANGE  
6
ORANGE  
BLUE  
BLUE  
9
BLUE  
AUTOFILL OPTION  
6
9
WHITE  
115 VOLTS  
T1  
RED  
YELLOW  
24 VOLTS  
DISPENSE  
DISPENSE RELAY  
R1  
SWITCH  
PL6-1  
PL6-3  
RED  
BROWN  
YELLOW  
BROWN  
C
NO  
B
A
BATH CONTROL BOARD  
24VAC YEL  
RED  
RED  
YELLOW  
24VAC RED  
BATH  
SOLENOID  
PL4-2  
BATH SOL  
C
BATH SOL  
NO  
PL4-1  
BLUE  
STATUS LIGHTS  
GREEN - COLD  
TEMP  
SENSOR  
YELLOW  
(12 SEC ON: 1 MIN OFF)  
NC  
RED - WARM  
T
BEVERAGE COOLING OPTION  
DISPENSE  
SOLENOID  
DISPENSE  
R1  
PL4-3  
PL4-4  
RED  
BROWN  
YELLOW  
6
9
AUTOFILL RELAY  
BROWN  
PL6-2  
AUTOFILL TIMER  
PL6-4  
3
RED  
2
BLUE  
BLUE  
YELLOW  
2
1
R2  
B
A
YELLOW  
3
18 MIN OFF  
5 SEC ON  
BIN T'STAT  
IM_#1  
BLUE  
BIN SIGNAL (24V)  
ICEMAKER #1  
SWITCH  
YELLOW  
RED  
BLUE  
BIN SIGNAL (24V)  
ICEMAKER #2  
AUTOFILL OPTION  
IM_#2  
24V JUNCTION BOX  
PL1-3  
PL1-4  
NO  
C
DRAINPAN  
BLACK  
SWITCH  
BROWN  
PL7-1  
LEGEND  
Valve_1  
BLACK  
Valve_2  
Valve_7  
Valve_3  
Valve_8  
Valve_4  
Valve_5  
BLACK  
TERMINAL STRIP CONNECTION  
PIN and SOCKET CONNECTION  
BROWN  
KEYSWITCH  
(OPTIONAL)  
Valve_6  
Valve_9  
BLACK  
Valve_10  
PL7-2  
13  
Before calling for service  
1. Check that there is ice in dispenser and that congealed cubes are not causing a jam.  
2. Check that circuit breaker and switches are in "ON" position.  
3. Check that drain pan, rear lid and top are on securely. If ajar, dispenser will not operate. When the top is off,  
auger does not operate, even though the solenoids do (see chart on page 15).  
4. Check that all drains are clear.  
5. For units equipped with Follett compressed nugget icemaker, see Icemaker Operation and Service  
Manual for service and troubleshooting information.  
Dispenser troubleshooting guide  
Possible cause  
Solution  
Symptom  
1. Power switch faulty or in OFF  
position; loose connection.  
2. Faulty dispense switch.  
3. Faulty transformer.  
4. Drain pan ajar.  
5. Faulty drain pan safety switch.  
1. Turn power switch to ON position;  
check connections.  
2. Replace switch.  
3. Replace transformer.  
4. Check pan and reseat.  
5. Replace switch.  
Ice does not dispense.  
Auger motor does not run.  
Wheel motor does not run.  
1. Loose electrical connection.  
2. Linkage problem between  
solenoid and gate.  
1. Check connections.  
2. Check linkage.  
Ice does not dispense.  
Auger motor runs.  
Wheel motor runs.  
Gate does not open.  
3. Faulty solenoid.  
3. Replace solenoid.  
1. Loose electrical connection.  
2. Faulty auger motor.  
3. Faulty run capacitor.  
1. Check connections.  
2. Check auger motor.  
3. Check run capacitor.  
Ice does not dispense.  
Auger motor does not run.  
Wheel motor runs.  
1. Loose electrical connection.  
2. Faulty wheel motor.  
3. Faulty run capacitor.  
1. Check connections.  
2. Check wheel motor.  
3. Check capacitor.  
Ice does not dispense.  
Auger motor runs.  
Wheel motor does not run.  
1. No ice in storage bin.  
1. Fill storage area with ice or check  
icemaker operation.  
Warm drinks or soda foaming.  
2. Water drained out of ice water  
bath.  
3. Circulating pump not running.  
2. Check that ice water bath drain  
tube is in fixed upright position.  
3. Check pump and PC board for  
output.  
If problems persist after following this basic troubleshooting guide, call Folletts  
Technical Service Department toll free at (800) 523-9361 or (888) 2-FOLLETT, or  
(610) 252-7301.  
14  
Operational Status  
The chart below shows the operational status of various parts when certain switches are turned off or accessories  
are removed.  
Condition  
Pump Solenoids Auger  
Wheel  
Beverage  
valves  
Top lid off  
off  
on  
on  
on  
on  
on  
off  
off  
off  
off  
off  
off  
on  
on  
off  
Rear lid off  
Drain pan off  
On/off switch  
in off position  
off  
on  
off  
on  
off  
on  
off  
on  
off  
off  
Beverage  
switch in OFF  
position  
Water bath circuit board operation  
The temperature sensor is hard wired directly to the circuit board. The water bath circuit board operates on 24  
volts AC. The bath pump will run for 35 minutes whenever ice is dispensed or the bath calls for ice.  
Optimal beverage temperature is controlled by the circuit board located in the electrical box. The board monitors  
the water bath temperature and holds it to a factory setting. When the Red LED is ON, the bath solenoid, auger  
motor, wheel motor and bath pump are energized. Ice will be dispensed into the water bath for 12 seconds,  
then stop for 60 seconds. The pump will stay energized, and the circuit board will then monitor the water  
temperature. If it is below the set point, the Green LED will come on, the Red LED light will go off, and ice will  
not dispense into the water bath. If the temperature of the bath is determined to be above the set point, the Red  
LED will remain on. The circuit board has a delay of 60 seconds before more ice is dispensed into the water  
bath.  
LED indicators:  
Green - the water bath is at the set temperature.  
Red - the bath temperature is above the set temperature and the bath is calling for ice.  
Flashing LED indicators:  
Flashing Red and Green - the circuit board has gone into an error mode:  
Alternate flashing - circuit board is powered up and waiting for hopper cover and dispenser top to be  
replaced.  
Simultaneous flashing - the water bath did not reach set temperature in 40 minutes. Reset this error  
mode by turning off power, removing top lid, drain pan or rear lid.  
bev. bath  
indicator  
0
I
0
I
0
I
#1 #2  
cold/green LED  
warm/red LED  
power on/off  
switch  
icemaker  
switches  
probe  
Electrical box  
front view  
15  
Replacement parts  
Dispenser exterior  
Front view  
Top view  
8 valve (8v) unit with right hand (RH) tower  
8 valve (8v) unit with right hand (RH) tower  
(push button dispensing)  
1
8
9
4
1
11  
10  
3
5
12  
2
7
6
Reference #  
Description  
Part #  
502436  
502437  
502438  
502439  
502440  
502441  
502445  
502444  
502443  
502442  
502446  
502447  
502450  
502451  
502452  
502453  
501409  
501286  
502584  
502583  
502585  
502586  
502587  
502588  
502589  
502590  
502591  
502623  
502622  
502621  
501100  
502454  
502287  
1
1
2
3
3
4
5
Lid, 8 valve unit (includes Follettlabel)  
Lid, 10 valve unit (includes Follettlabel)  
Label, "Follett"  
Cover, dispense chute, lever operation  
Cover, dispense chute, push button operation (includes button)  
Switch, push button operation  
Backsplash, RH unit, 8 valves  
Backsplash, LH unit, 8 valves  
Backsplash, RH unit, 10 valves  
Backsplash, LH unit, 10 valves  
Drain pan, 8 valve unit  
Drain pan, 10 valve unit  
Grill, drain pan, 8 valve unit  
Grill, drain pan, 10 valve unit  
Cover, ice storage bin, rear all U155 units (except N units)  
Cover, ice storage (under drain pan) all U155 units  
Switch, key lock for valves  
Key, beverage lock switch  
Panel, end, beverage, RH unit  
Not shown  
Not shown  
Not shown  
6
Not shown  
7
Not shown  
8
Not shown  
9
Not shown  
10  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
11  
Not shown  
Not shown  
12  
Not shown  
Not shown  
Panel, end, beverage, LH unit  
Panel, access, RH and LH units  
Panel, rear, motor support, RH unit  
Panel, rear, motor support, LH unit  
Panel, front, dispense mechanism, RH unit  
Panel, front, dispense mechanism, LH unit  
Panel, rear, 8v  
Panel, rear, 10v  
Label, ice, dispense cover, push button  
Label, ice, dispense cover, lever  
Clip, Tinnerman, 10-32  
Thumbscrew, backsplash, 10-32 x 1/2  
Legs, 6" (153mm) adjustable to 9" (229mm) set of 4  
Screw, 10-32 x 1/2  
16  
Dispense assembly  
Dispense assembly side view  
(RH unit with bath shown)  
6
10  
10  
1
4
8
top view  
1
10  
3
10  
7
7
8
2
2
12  
5
12  
11  
9
11  
5
Reference #  
Description  
Part #  
1
2
3
4
5
6
Gate, dispense  
Linkage pin, gate / solenoid  
502455  
502456  
501949  
502102  
501961  
502448  
502449  
502458  
502496  
501950  
502457  
502607  
501249  
502625  
502624  
502618  
502459  
501953  
Pin, quick release, 3" (77mm), bath gate and lever  
Pin, quick release, 5.53" (141mm), dispense gate  
Solenoid (includes linkage pin)  
Dispense mechanism assembly, bath, RH unit  
Dispense mechanism assembly, bath, LH unit  
Dispense mechanism assembly, non-bath RH unit  
Dispense mechanism assembly, non-bath, LH unit  
Spring, dispense mechanism (1 per side)  
Chute, ice  
Wrap, dispense mechanism  
Bushing, Ni liners  
Screw, 8-32 x 5/16  
Pin, spring  
Not shown  
Not shown  
Not shown  
7
8
9
10  
11  
12  
Not shown  
Not shown  
Not shown  
Push pins, clear chute  
Chute, focus clear plastic  
Lever, dispense  
17  
Water bath  
4
4
5
8
10  
9
10  
10  
2
1
6
3
7
top view  
side view  
Reference #  
Description  
Part #  
1
2
3
4
Coil, 14" (356mm) riser carbonated water  
Coil, 12-1/2" (318mm) riser plain water / carbonated water  
Coil, syrup  
502460  
502461  
502462  
502463  
502467  
502632  
502464  
502633  
502465  
502466  
502468  
502469  
502470  
502494  
502596  
502595  
502626  
502627  
Pump, water bath (includes mounting plate and elbow)  
Pump, discharge assembly, RH, 8v (includes 2 elbows)  
Pump, discharge assembly, LH, 8v (includes 2 elbows)  
Pump, discharge assembly, RH, 10v (includes 2 elbows)  
Pump, discharge assembly, LH, 10v (includes 2 elbows)  
Elbow, overflow drain, 1" (26mm) x 3/4 MPT  
Elbow, clean-out drain, 3/8" (10mm) x 3/8 MPT  
Manifold, carbonated water, 8 valve unit  
Manifold, carbonated water, 10 valve unit  
Manifold, 8 valve unit without beverage bath  
Manifold, 10 valve unit without beverage bath  
Bath, splash shield, RH  
5
Not shown  
Not shown  
Not shown  
6
Not shown  
7
Not shown  
Not shown  
Not shown  
8
Not shown  
9
Bath, splash shield, LH  
Clamp, elbow, bath  
Screw, 8 x 1/2, stainless  
10  
18  
Hopper  
5
1
7
2
side view  
9
3
8
10  
6
4
Reference #  
1
Not shown  
2
Not shown  
Not shown  
Not shown  
3
Description  
Auger, LH unit (black, stamped with 1)  
Auger, RH unit (gray, stamped with 2)  
Part #  
502491  
502492  
502486  
502485  
502487  
502488  
501681  
501684  
501682  
502476  
502560  
501333  
501768  
501782  
502484  
502615  
502490  
501696  
502497  
500366  
502522  
502523  
501176  
502674  
501432  
502673  
502674  
Tube, auger, LH unit with beverage bath  
Tube, auger, RH unit with beverage bath  
Tube, auger, RH unit without beverage bath  
Tube, auger, LH unit without beverage bath  
Wheel, dispense (includes stud and rotating agitator)  
Baffle (under dispense wheel)  
Drive bar (under dispense wheel)  
Motor, vertical auger  
Motor, wheel  
Seal, wheel motor  
Spacer, wheel motor  
Capacitor, wheel motor  
4
Not shown  
5
6
Not shown  
Not shown  
Not shown  
7
Agitator, rotating, 21" (534mm) long  
Plate, wheel motor mounting  
Agitator, stationery  
8
9
10  
Plate, auger bearing  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Bracket, ice tube, double tube  
Ice transport tube (sold by the foot)  
Ice transport tube, 10 ft  
Ice transport tube, 20 ft  
Insulation, transport tube (sold by the foot)  
Cover, blank ice entry  
Thermostat  
Gasket, ice entry  
Plate, ice entry, 2 holes  
19  
Auger motor  
7
6
3
10  
4
6
5
9
1
8
2
11  
top view  
side view  
Reference #  
Description  
Part #  
502493  
502476  
502477  
502478  
502479  
502480  
501314  
502481  
501550  
502482  
501765  
502483  
Auger motor/drive assembly, vertical (includes all items below)  
Motor, vertical auger (includes gearbox and capacitor)  
Chain, auger drive #35, 40p  
Sprocket 35#, 22T 5/8 bore  
Sprocket 35#, 12T 5/8 bore  
1
2
3
4
5
6
7
8
9
Drive shaft  
Bearing, auger, upper and lower  
Cover and bearing, chain drive (includes 501314)  
Capacitor, 25mf, 270V  
Key, Woodruff  
Washers, thrust (4)  
10  
11  
Mounting plate, auger motor (includes 501314)  
20  
Top view  
Electrical components  
1
5
5
9
3
2
circuit board  
7
Side view  
4
Front view  
0
I
0
I
0
I
#1 #2  
6
6
7
MTR  
8
ready  
(orange)  
circuit board  
Reference #  
Description  
Part #  
502058  
501826  
501826  
502471  
502472  
502209  
502473  
502474  
502511  
502498  
502499  
502500  
502501  
502505  
502608  
502609  
502610  
501432  
1
2
3
4
5
6
7
8
Transformer, 24V  
Relay, level fill  
Relay, dispense  
Timer, level fill (automatic fill units)  
Strips, terminal  
Switches (power and icemaker)  
Board, circuit and probe (one unit)  
Bracket, probe  
9
Switch, safety  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Not shown  
Switch, safety, rear cover assy., LH unit  
Switch, safety, rear cover assy., RH unit  
Switch, safety, drain pan assy., LH unit  
Switch, safety, drain pan assy., RH unit  
Switch, dispense, lever  
Bracket, safety switch, rear  
Bracket, safety switch, drain pan, RH  
Bracket, safety switch, drain pan, LH  
Thermostat, bin level  
21  
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  
207896  
10/00  
U
U
®L  
®L  
®
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