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

(610) 252-7301 • FAX (610) 250-0696 • www.follettice.com

207896

10/00

_®L

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 ea (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)

electrical

(153mm)

connections

18.9"

12"

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

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.

GND

GRN

U155 dispenser

15 amp fused

disconnect

Right junction box

Left junction box

LEGEND

Wirenut field

connections

Equipment

ground

BL - black

W - white

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

(115 volts)

Electric power source

GND - ground

B - black

W - white

GRN - green

BL - blue

R - red

GND

_XGRN

Electric power source

(115 volts)

Y - yellow

Icemaker #1

GND

GRN

Standard electrical - 115V, 1 Ph, 60 Hz,

max. fuse size 15 amps

Upper junction box

Lower junction box

GRN

U155 dispenser

15 amp fused

disconnect

Left junction box

Right junction box

GND

15 amp fused

disconnect

(24 volts)

GND

GRN

(115 volts)

(24 volts)

Icemaker #2 (optional)

Lower junction box

Upper junction box

On all models with remote

GRN

icemaker(s), the black wire on the

icemaker control board’s(s’) LINE

VAC terminal must be moved to the

24V terminal.

15 amp fused

disconnect

GND ^X

(24 volts)

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

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).

2.54 cm

ice tube

Side view

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.

10 9 8

6 5

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 (“B” models) 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-like” sections 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.

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.

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.

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.

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

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

4. Remove motor assembly.

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.

Wiring diagram -

Left hand unit

Right hand unit

COUNTERCLOCKWISE ROTATION

PL2-1

PL2-2

RED RED

PURPLE

AUGER MOTOR

CLOCKWISE ROTATION

PL2-2

DISPENSE

PL2-1

RED RED

PL1-1

PL1-2

BLACK

GRAY

BLACK

ORANGE

BLACK

BLK

WHITE

PURPLE

WHITE

POWER

SWITCH

REAR

TOP LID

SWITCH

DRAIN

PAN

LID

PL2-3

PURPLE

SWITCH

BLUE

PURPLE

WHITE

MTR

ORANGE

BATHPUMP MOTOR

PL5-1 PL5-2

READY

LID

GRAY

PUMP

BLK

BATH CONTROL

BOARD

(35 MIN ON DELAY)

BEVERAGE COOLING OPTION

WHEEL MOTOR

CLOCKWISE ROTATION

PL3-2 PL3-3

COUNTERCLOCKWISE ROTATION

AUTOFILLR2

PURPLE

AUTOFILLR2

PURPLE

PL3-2

RED

PL3-3

RED

BLK WHT

RED

BLK WHT

RED

AUTOFILL R2

PL3-1

BLUE

PL3-1

BLUE

ORANGE

BLUE

AUTOFILL OPTION

WHITE

115 VOLTS

RED

YELLOW

24 VOLTS

DISPENSE

DISPENSE RELAY

SWITCH

PL6-1

PL6-3

RED

BROWN

YELLOW

BROWN

BATH CONTROL BOARD

24VAC YEL

RED

YELLOW

24VAC RED

BATH

SOLENOID

PL4-2

BATH SOL

PL4-1

BLUE

STATUS LIGHTS

GREEN - COLD

TEMP

SENSOR

YELLOW

(12 SEC ON: 1 MIN OFF)

RED - WARM

BEVERAGE COOLING OPTION

DISPENSE

SOLENOID

DISPENSE

PL4-3

PL4-4

RED

BROWN

YELLOW

AUTOFILL RELAY

BROWN

PL6-2

AUTOFILL TIMER

PL6-4

RED

BLUE

YELLOW

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

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

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 Follett’s

Technical Service Department toll free at (800) 523-9361 or (888) 2-FOLLETT, or

(610) 252-7301.

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

Rear lid off

Drain pan off

On/off switch

in off position

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

#1 #2

cold/green LED

warm/red LED

power on/off

switch

icemaker

switches

probe

Electrical box

front view

Replacement parts

Dispenser exterior

Front view

Top view

8 valve (8v) unit with right hand (RH) tower

(push button dispensing)

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

Lid, 8 valve unit (includes “Follett” label)

Lid, 10 valve unit (includes “Follett” label)

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

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

Dispense assembly

Dispense assembly side view

(RH unit with bath shown)

top view

Reference #

Description

Part #

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

Push pins, clear chute

Chute, focus — clear plastic

Lever, dispense

Water bath

top view

side view

Reference #

Description

Part #

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

Not shown

Bath, splash shield, LH

Clamp, elbow, bath

Screw, 8 x 1/2, stainless

Hopper

side view

Reference #

Not shown

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

Not shown

Agitator, rotating, 21" (534mm) long

Plate, wheel motor mounting

Agitator, stationery

Plate, auger bearing

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

Auger motor

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

Drive shaft

Bearing, auger, upper and lower

Cover and bearing, chain drive (includes 501314)

Capacitor, 25mf, 270V

Key, Woodruff

Washers, thrust (4)

Mounting plate, auger motor (includes 501314)

Top view

Electrical components

circuit board

Side view

Front view

#1 #2

J 6

J 4

J 5

MTR

ready

(orange)

circuit board

Reference #

Description

Part #

502058

501826

502471

502472

502209

502473

502474

502511

502498

502499

502500

502501

502505

502608

502609

502610

501432

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

Switch, safety

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

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

_®L

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