Follett U155BX User Manual

U155 Series  
Ice and Beverage Dispensers  
Order parts online  
Installation, Operation and Service Manual  
Manual load unit  
Automatic load unit  
with one icemaker  
Model U155, U155X  
Model U155B, U155BX  
Model U155R400A/W, U155XR400A/W  
Model U155BR400A/W, U155BXR400A/W  
Automatic load unit  
with two icemakers  
Model U155R800A/W, U155XR800A/W  
Model U155BR800A/W, U155BXR800A/W  
Following installation, please forward this manual  
to the appropriate operations person.  
801 Church Lane • PO Box D, Easton, PA 18044, USA  
Toll free (800) 523-9361 • (888) 2-FOLLETT  
U
U
®L  
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208598R05  
Table of contents  
Welcome to Follett Corporation  
Important cautions  
Specifications  
4
4
5
Installation  
7
Installing dispenser in counter  
Electrical connections  
Field wiring diagrams  
Connecting beverage lines  
Installing optional icemaker  
Operation  
How the dispenser works  
Cleaning  
Service  
7
8
8
9
9
10  
10  
11  
13  
13  
13  
13  
13  
13  
14  
15  
17  
Dispense chute cover removal  
Auger motor assembly removal  
Gate assembly removal  
Auger and auger tube removal  
Dispenser wheel removal  
Wiring diagrams  
Troubleshooting  
Replacement parts  
Follett Corporation  
Equipment Return Policy  
Follett equipment may be returned for credit under the following conditions:  
1. The equipment is new and unused.  
2. A return authorization number has been issued by customer service.  
3. Follett receives the equipment at the factory in Easton, PA within 30 days of the issue of the return authorization number.  
4. The equipment must be returned in Follett packaging. If the packaging has been damaged or discarded, Follett will forward, at the customer’s  
expense, new packaging.  
Note:  
Return freight charges are the responsibility of the customer. If equipment is returned and is damaged because of improper packaging,  
Follett Corporation will not be held responsible.  
Credit will be issued when:  
The equipment has been inspected by Follett and deemed suitable to be returned to stock.  
Note:  
A 15% restocking charge will be deducted from the credit. If the cost to return the product to stock exceeds 15%, the actual cost will be  
deducted.  
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 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 at (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.  
U155BR400AXR  
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 – 400 = 400 lbs (181kg)/day, R404A  
800 = 800 lbs (363kg)/day, R404A  
absence of = manual fill unit  
B = beverage bath equipped. Absence of a B = no integral beverage cooling  
Approximate manual load 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.  
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.  
Always disconnect power before cleaning or servicing the dispenser.  
Failure to remove all sanitizer may result in health hazard.  
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 at  
(800) 523-9361 or (888) 2-FOLLETT or (610) 252-7301.  
4
Specifications  
Electrical  
Each icemaker and dispenser require a separate circuit with with electrical disconnect within 10 ft (6m).  
Equipment ground required. Standard electrical – 115V, 60Hz, 1 phase. Maximum dispenser fuse – 15 amps,  
Maximum icemaker fuse – 20 amps each.  
Model  
number  
Icemaker  
amperage  
Dispenser  
amperage  
Single-sided models  
U155, U155X  
U155B, U155BX  
U155R400A/W, U155R400A/WX  
U155BR400A/W, U155BR400A/WX  
U155R800A/W, U155R800A/WX  
U155BR800A/W, U155BR800A/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)  
Plumbing  
Dispenser  
3/4" PVC pipe nipple for bin drain  
3/4" PVC pipe nipple for drain pan drain  
1" ID hose for beverage bath drain  
Beverage connections  
1/4" ID syrup beverage hose  
3/8" ID carbonated water beverage hose  
3/8" ID plain water beverage hose  
Note: Drains should be hard piped and insulated. Maintain at least 1/4" per foot (6mm per 304mm run)  
slope on drain line run.  
Water disconnect within 10 feet (3m) of dispenser is suggested for automatic load units.  
Follett recommends use of a Follett model AFSYSTMFL4S water filter on icemakers connected  
to automatic fill dispensers.  
Icemaker  
(detailed specifications may be found in icemaker installation manual  
packed with icemaker)  
3/8" OD push-in water in  
3/4" MPT drain  
3/8" FPT condenser inlet (water-cooled condenser only)  
1/2" FPT condenser drain (water-cooled condenser only)  
5
Dimensions and clearances  
Required clearances  
51" (1295mm) minimum above counter for installation if dispenser will be dropped into counter  
36" (915mm) minimum above counter for all units after installation for auger cleaning and servicing  
12" (305mm) minimum on side opposite ice chute for service  
12" (305mm) minimum on ice chute side if ice transport tube enters this side  
12" (305mm) minimum between dispenser side(s) and optional icemaker(s)  
37.25"  
(947mm)  
Front View  
(10 valve unit)  
31.25"  
(794mm)  
(8 valve unit)  
21.75"  
(553mm)  
counter top  
49.75"  
(1264mm)  
ice  
transport  
tube  
beverage line  
air break*  
28"  
(712mm)  
3/4 PVC slip  
joint drain  
17"  
(432 mm)  
electrical  
connections  
18.875"  
(479mm)  
6"  
min  
18.875"  
(479mm)  
12"  
min  
*DO NOT  
CONNECT TO  
DRAIN SYSTEM  
Manual load unit  
Automatic load unit with 1 icemaker  
Automatic load unit with 2 icemakers  
27.375"  
(696mm)  
Side View  
ice transport  
tube entrance  
beverage  
waterbath  
overflow  
3.5"  
(889mm)  
beverage  
drain pan  
drain  
25.8"  
(656mm)  
3/4 PVC  
slip joint  
drain  
18.5"  
(470mm)  
6"  
(153mm)  
8.75"  
(223mm)  
bin  
signal  
power  
6
Installation  
Installing dispenser in counter  
Note: All dispensers must be supported from below with supplied 6" - 9" (153 – 229mm) adjustable leg accessory,  
or equivalent. Do not hang dispenser on flange.  
All dispensers must be installed level in both directions to ensure proper operation.  
1. Check that dispenser location meets all requirements in this manual and cut counter as shown.  
Plan View  
Plan View  
units with up to 8 valves  
counter cut-out  
units with 10 valves  
counter cut-out  
+.125"  
- .125"  
+3 mm  
- 3 mm  
+.125"  
- .125"  
+3 mm  
- 3 mm  
36.375"  
(924mm)  
26.25"  
+.125"  
- .125"  
26.25"  
+.125"  
- .125"  
30.375"  
(772mm)  
(667mm)  
+3 mm  
(667mm)  
+3 mm  
- 3 mm  
- 3 mm  
Front of counter  
Front of counter  
2. Place support blocks in cabinet to raise dispenser to a height of 12" (305mm)  
3. Place dispenser in counter onto support blocks.  
4. Attach adjustable legs to dispenser.  
5. Remove support blocks and lower dispenser feet to floor.  
6. Adjust legs for 1/8" (4mm) clearance between dispenser lip and countertop to verify there is no load on flange.  
7. 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. Smooth sealant to a 1/8" (4mm) radius.  
8. Install a PVC drain line with at least a 1/4" per foot (20mm per 1m) slope. Insulate drain line to prevent  
condensation.  
Note:  
Do not apply excessive heat if any sweating of fittings is necessary. Heat conduction through metal may  
melt threads in plastic drain.  
Do not reduce drain line size or tie drains together.  
9. Make electrical connections in accordance with applicable wiring diagrams provided. Provide disconnects within  
10 ft (3m) of dispenser and icemaker for servicing.  
7
Electrical connections  
Model  
Electrical connection  
Circuit(s) required  
115V, 60Hz, 1 phase  
U155, U155X,  
Hard wiring of dispenser required  
U155B, U155BX  
Max. fuse dispenser – 15 amps  
U155R400A/W,  
U155R400A/WX,  
U155BR400A/W,  
U155BR400A/WX  
Dispenser power – hard wiring  
required  
115V, 60Hz, 1 phase  
(2) circuits required  
Bin signal – cord and plug supplied  
Dispenser – 15 amps max. fuse size  
Icemaker – 20 amps max. fuse size  
Icemaker – cord and plug supplied  
on power and bin signal  
Dispenser power – hard wiring  
required  
115V, 60Hz, 1 phase  
(3) circuits required  
U155R800A/W,  
U155R800A/WX,  
U155BR800A/W,  
U155BR800A/WX  
Dispenser – 15 amps max. fuse size.  
Bin signal – cord and plug supplied  
(2) icemakers – 20 amps max. fuse  
size each  
Icemaker – cord and plug supplied on  
power and bin signal  
Field wiring diagrams  
Note: Field wiring diagrams are intended to aid electricians or technicians in understanding how equipment  
works. All field wiring must be installed in accordance with all local and NEC codes.  
Manual load models  
LEGEND  
WIRENUT FIELD  
CONNECTIONS  
EQUIPMENT  
GROUND  
DISPENSER  
Electric Power  
Source  
X
LEFT JUNCTION BOX RIGHT JUNCTION BOX  
15 AMP FUSED  
DISCONNECT  
B
BLACK  
WHITE  
W
B
W
W
BL  
GREEN  
GRN  
BL  
B
NOT  
USED  
BLUE  
YELLOW  
RED  
Y
GRN  
Y
RD  
GND  
GRN  
RD  
GND  
ICEMAKER #1  
(OPTIONAL)  
ELECTRIC  
POWER  
SOURCE  
LOWER JUNCTION BOX  
UPPER JUNCTION BOX  
Automatic load models  
W
B
DISPENSER  
B
Electric Power  
Source  
W
LEFT JUNCTION BOX RIGHT JUNCTION BOX  
15 AMP FUSED  
DISCONNECT  
GRN  
GND  
X
W
W
B
BL  
B
Y
ICEMAKER #2  
(OPTIONAL)  
GRN  
ELECTRIC  
POWER  
SOURCE  
RD  
GND  
GRN  
GND  
LOWER JUNCTION BOX  
UPPER JUNCTION BOX  
W
B
W
B
GRN  
GND  
X
8
Connecting beverage lines  
1. Connect syrup and water lines. Non-carbonated water line will be labeled “water”. Syrup lines are numbered  
and correspond to the valves as shown in drawing(s) below. Valve one is always next to ice tower.  
2. Clean and sanitize beverage lines in accordance with cleaning instructions.  
7
2
10 9 8  
6 5  
1
4 3  
Valve position #1 is always next to ice  
tower. Right-hand unit shown.  
Installing optional icemaker  
Correct installation of remote icemaker(s) is critical to proper performance of icemaker. 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 may void warranty.  
To start up and operate dispenser  
1. Follow detailed cleaning instructions in service manual before operating dispenser.  
2. On units with Follett integral ice water bath beverage cooling (“B” models) only, slowly pour water into ice  
water bath 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.  
3. For manual load units, remove front drain pan or rear lid and fill storage area with approved ice.  
Note: 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 at (800) 523-9361  
or (888) 2-FOLLETT or (610) 252-7301.  
4. Turn power switch located on dispenser control box to ON position.  
5. For automatic fill units, follow detailed instructions in icemaker installation section of installation manual, then  
turn icemaker (bin signal) switch(es) located on dispenser control box to ON position and begin to make ice.  
6. When dispenser has at least 6" (153mm) of ice in storage area, test operation.  
9
Operation  
How the dispenser works  
Follett’s dispensers are available in automatic load configurations, fed from one or two Follett remote icemakers  
or manual load configurations (using ice from another source).  
In all models, ice is stored below the counter in the dispenser storage area. When the dispense lever or button is  
pushed, the dispense motors are 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 ft (6m) away from the dispenser. Extruded ice is transported through a tube and pushed to  
the storage compartment of the dispenser. When the bin is filled, a bin thermostat 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 waterbath timer circuit that activates the  
waterbath pump for 35 minutes when ice lever or button is activated, or when the ice water bath warms up and  
calls for more ice.  
Ice movement  
10  
Cleaning  
Using solutions below, clean and sanitize storage area and beverage lines before starting unit and on a routine  
basis as noted below.  
Note: Always disconnect power before cleaning dispenser.  
Do not run plastic parts through a dishwasher.  
Solution A:  
Solution B:  
Note:  
Combine 1 oz (250ml) bleach with 2 gal (8L) hot water or use Ecolab Mikro-chlor Cleaner  
per manufacturers instructions.  
Combine 1/4 oz (50ml) bleach with 2 gal (8L) hot water or use Ecolab Mikro-chlor Cleaner  
per manufacturers instructions.  
Cleaning solutions temperature must be at 75˚ – 125˚F (24˚ to 52˚C)  
Recommended cleaning prior to startup  
Cleaning ice storage area before use  
1. Refer to disassembly instructions (see Service section) and remove dispense wheel from ice storage area.  
2. Remove auger, auger tube and dispense mechanism.  
3. Wipe all components and ice storage area with cleaning Solution A.  
4. Rinse all components and ice storage area thoroughly with clear, potable water.  
5. Wipe all components and ice storage area with sanitizing Solution B.  
Cleaning beverage lines  
Prepare 6 gallons (23L) 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 line #1 to cleaning solution tank, pressurize tank to 20-50 psi, and dispense 1/2  
gallon (2L) of solution into a suitable container from valve #1.  
3. Connect syrup line #1 to rinse tank, pressurize tank to 20-50 psi, and dispense 3 gallons (11L)  
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 beverage lines  
Prepare 6 gallons (23L) of sanitizing Solution B. Fill a clean product tank with this solution.  
1. Connect one tank to syrup line #1. Dispense 1/2 gallon (2L) from valve #1.  
2. Repeat for all remaining syrup lines, 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 line 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.  
11  
Recommended daily dispenser cleaning  
1. Remove all debris from drain pan.  
2. Pour 1 gallon (4L) hot water into drain pan to keep drain lines clear.  
Recommended weekly dispenser cleaning  
1. Remove drain pan and grille 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 (3.8L) hot water into  
drain pan to help prevent algae growth in drain lines.  
Recommended quarterly dispenser cleaning  
1. Remove top from dispenser and turn power switch to OFF position.  
2. Remove ice from storage area.  
3. Remove dispense chute cover, chute, auger motor assembly, auger and auger tube (see Service section).  
4. Remove drain pan, grille and dispense wheel (see Service section).  
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.  
For units with integral ice-water bath beverage cooling only:  
1. Remove dispenser lid and counter access panel opposite ice tower side.  
2. Disengage service drain tube (on utility connection side of dispenser) from mounting bracket.  
3. Pull bath service drain tube down through beverage line opening in counter and drain water bath into a bucket.  
4. Use a bottle brush to clean coils with Solution A, rinse and sanitize with Solution B.  
5. Reposition ice water bath drain tube in up position so water does not drain out.  
6. Pour Solution A into ice water bath until it flows out of bath overflow drain.  
7. Turn power ON to unit and dispense a small cup of ice to activate pump.  
8. Allow pump to run for two minutes to clean pump and pump lines.  
9. Turn power OFF.  
10. Drain bath and replace drain tube in mounting bracket 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 important cautions on page 4).  
4. For automatic load units with R400A/W (R404A refrigerant) icemakers, turn bin signal switch(es) and  
dispenser power switch to ON position and allow storage area to fill.  
5. Dispense and discard all ice, verifying dispenser is functioning properly.  
Recommended quarterly cleaning of optional icemaker.  
Units equipped with optional 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 Installation, Operation and Service Manual.  
12  
Fig. 1  
RH, 8-valve unit  
Front View  
Service  
Dispense chute cover removal  
top cover  
chute  
cover  
valves  
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.  
drain pan  
assembly  
dispense  
chute  
Auger motor assembly removal  
1. Remove top cover.  
2. Remove one thumbnut on rear of motor bracket.  
3. Lift motor bracket and motor up, unplug electric  
quick disconnects and remove.  
Dispense assembly, Top View  
(RH unit with bath shown)  
Fig. 2  
Dispense mechanism assembly removal (Fig. 2)  
1. Remove top cover.  
gate  
solenoid  
2. Remove chute cover (see above).  
3. Remove auger motor assembly (see above).  
ice  
chute  
4. Remove quick release pins from the ice chutes  
and gates, then unplug wires from solenoids.  
quick  
release  
pin  
5. Lift dispense mechanism up and off auger tube.  
Auger and auger tube removal (Fig. 3)  
1. Remove auger motor and dispense mechanism  
assembly (see above).  
quick  
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.  
release  
pin  
Fig. 3  
auger motor  
Side View  
dispenser  
Front View  
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.  
auger  
stationery  
agitator  
auger  
tube  
baffle  
plate  
rotating  
agitator  
dispense  
wheel  
auger  
bearing  
plate  
wheel  
motor  
mounting  
plate  
wheel  
motor  
13  
Wiring diagram  
Right hand unit  
Left hand unit  
L2  
COUNTERCLOCKWISE ROTATION  
PL2-1  
PL2-2  
RED RED  
PURPLE  
AUGER MOTOR  
L1  
L2  
AUGER MOTOR  
CLOCKWISE ROTATION  
PL2-2  
DISPENSE  
R1  
PL1-1  
PL1-2  
NO  
REAR  
LID  
SWITCH  
PL2-1  
RED RED  
BLACK  
GRAY  
C
BLACK  
ORANGE  
BLACK  
BLK  
WHITE  
PURPLE  
M1  
C
C
4
BLK  
WHITE  
NO  
NO  
7
M1  
POWER  
SWITCH  
TOP LID  
SWITCH  
DRAIN  
PAN  
SWITCH  
PL2-3  
PL2-3  
PURPLE  
BLUE  
BLUE  
BLUE  
BLUE  
PURPLE  
L2  
WHITE  
MTR  
READY  
LID  
WHITE  
ORANGE  
BATHPUMP MOTOR  
PL5-1 PL5-2  
GRAY  
M3  
PUMP  
BATH CONTROL  
BOARD  
BLK  
(35 MIN ON DELAY)  
BEVERAGE COOLING OPTION  
WHEEL MOTOR  
COUNTERCLOCKWISE ROTATION  
WHEEL MOTOR  
CLOCKWISE ROTATION  
AUTOFILLR2  
PURPLE  
PL3-2  
RED  
PL3-3  
BLK WHT  
AUTOFILLR2  
PURPLE  
RED  
PL3-2  
PL3-3  
BLK WHT  
M2  
RED  
RED  
RED  
7
1
7
M2  
1
AUTOFILL R2  
PL3-1  
BLUE  
ORANGE  
PL3-1  
BLUE  
BLUE  
ORANGE  
6
BLUE  
AUTOFILL OPTION  
6
9
BLUE  
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  
Valve_1  
BLACK  
Valve_2  
Valve_7  
Valve_3  
Valve_8  
Valve_4  
Valve_5  
BLACK  
LEGEND  
TERMINAL STRIP CONNECTION  
PIN and SOCKET CONNECTION  
BROWN  
KEYSWITCH  
(OPTIONAL)  
Valve_6  
Valve_9  
BLACK  
Valve_10  
PL7-2  
14  
Dispenser troubleshooting guide  
Before calling for service  
1. Check that ice is in the 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 (page 16).  
4. Check that all drains are clear.  
Note: For units equipped with Follett compressed nugget icemaker, see Icemaker Operation and Service  
Manual for service and troubleshooting information.  
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.  
1. Power switch in OFF position or  
faulty.  
1. Check switch and replace if  
necessary.  
No ice in dispenser.  
2. Bin signal switches in OFF  
position or faulty.  
2. Check switch and replace if  
necessary.  
3. Faulty bin thermostat.  
4. Faulty transformer.  
5. Icemaker related problem.  
3. Replace bin thermostat.  
4. Replace transformer.  
5. Refer to icemaker Operation and  
Service Manual for diagnosing.  
6. Check for power and bin signal on  
icemaker PC board.  
6. Faulty or disconnected wiring.  
If problems persist after following this basic troubleshooting guide, call Follett’s  
technical service department toll at (800) 523-9361 or (888) 2-FOLLETT  
or (610) 252-7301.  
15  
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  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
Rear lid off  
Drain pan off  
ON  
OFF  
On/off switch  
in off position  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
OFF  
Beverage  
switch in OFF  
position  
Waterbath circuit board operation  
The temperature sensor is hard wired directly to the circuit board. The waterbath 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 waterbath 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 waterbath 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 waterbath. 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  
waterbath.  
LED indicators:  
Green – the waterbath 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 has power and is waiting for hopper cover and dispenser top to be  
replaced.  
Simultaneous flashing – the waterbath did not reach set temperature in 40 minutes. Reset this error  
mode by turning power off, removing top lid, drain pan or rear lid.  
Electrical box  
Front View  
bev. bath  
indicator  
0
I
0
I
0
I
#1 #2  
cold/green LED  
warm/red LED  
power on/off  
switch  
icemaker  
switches  
probe  
16  
Replacement parts  
Dispenser exterior  
Front View  
Top View  
8 valve (8v) unit with right hand (RH) tower  
(push-button dispensing)  
8 valve (8v) unit with right hand (RH) tower  
1
8
9
4
1
11  
12  
10  
3
5
2
7
6
Reference #  
1
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  
502333  
502334  
Lid, 8 valve unit (includes “Follett” label)  
Lid, 10 valve unit (includes “Follett” label)  
Label, “Follett”  
1
2
3
3
4
5
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  
Grille, drain pan, 8 valve unit  
Grille, 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  
Not shown  
Not shown  
Not shown  
6
Not shown  
7
Not shown  
8
Not shown  
9
Not shown  
10  
Key, beverage lock switch  
Panel, end, beverage, RH unit  
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  
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  
Not shown  
Not shown  
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  
Plug 2 lead, male  
Plug 2 lead, female  
17  
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  
9
11  
11  
5
Reference #  
Description  
Part #  
1
2
3
4
5
6
Gate, dispense  
Linkage pin, gate/solenoid  
502455  
502456  
501949  
502102  
402403  
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  
18  
Side View  
Waterbath  
4
11  
Top View  
4
12  
8
10  
5
10  
2
10  
9
1
6
3
7
Reference #  
Description  
Coil, 14" (356mm) riser — carbonated water  
Coil, 12-1/2" (318mm) riser — plain water/carbonated water  
Coil, syrup  
Part #  
00107391  
502461  
1
2
3
502462  
4
5
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  
00111476  
00109314  
00109322  
00109330  
00109348  
502465  
Not shown  
Not shown  
Not shown  
6
Not shown  
502466  
502468  
502469  
502470  
502494  
502596  
7
Not shown  
Not shown  
Not shown  
8
Not shown  
Bath, splash shield, LH  
502595  
9
Clamp, elbow, bath  
502626  
10  
11  
12  
Screw, 8 x 1/2, stainless  
Fitting, beverage valve  
Clamp, Otieker, 1/4" (7mm)  
502627  
207855  
00113761  
19  
Hopper  
5
1
7
2
9
Side View  
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  
502672  
502673  
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  
20  
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)  
21  
Electrical components  
5
1
Top View  
5
3
MTR  
ready  
(orange)  
7
circuit board  
2
BEVERAGE BATH CONTROL BOARD DETAIL  
Side View  
4
9
Front View  
0
I
0
I
0
I
BEV. BATH INDICATOR  
WARM  
COLD  
#1 #2  
6
6
8
7
Reference #  
Description  
Transformer, 24V  
Relay, auto fill  
Relay, dispense  
Timer, auto fill (automatic fill units)  
Strips, terminal  
Switches (power and icemaker)  
Board, circuit and probe (one unit)  
Bracket, probe  
Part #  
502058  
501826  
501826  
502471  
502472  
502209  
502473  
502474  
502511  
502498  
502499  
502500  
502501  
502505  
502608  
502609  
502610  
500514  
1
2
3
4
5
6
7
8
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 assembly, LH unit  
Switch, safety, rear cover assembly, RH unit  
Switch, safety, drain pan assembly, LH unit  
Switch, safety, drain pan assembly, RH unit  
Switch, dispense, lever  
Bracket, safety switch, rear  
Bracket, safety switch, drain pan, RH  
Bracket, safety switch, drain pan, LH  
Thermostat, bin level  
22  
801 Church Lane • PO Box D, Easton, PA 18044, USA  
Toll free (800) 523-9361 • (888) 2-FOLLETT  
208598R05  
02/04  
U
U
®L  
®L  
C

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