Bunn FMD-3 User Manual

2.88 Mb

FMD-3

(S/N FMD0013000-UP)

OPERATING & SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

29170.0000E 01/06 © 1998 Bunn-O-Matic Corporation

INTRODUCTION

This equipment dispenses hot beverages or soup on demand from powdered product. It has three hoppers. This equipment may also dispense cold beverages from powdered product from the left dispense station. It is for indoor use only on a sturdy counter or shelf.

WARRANTY

Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition:

1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material and workmanship for two years from the date of installation.

2.) Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in material and workmanship for two years from the date of installation.

3.) Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes first.

This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon.

The Buyer shall give Bunn prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois, 62708-3227. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, replace the equipment or refund the purchase price for the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AS SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, REPLACEMENT OR REFUND.

In no event shall Bunn be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

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29170 032900

 

USER NOTICES

Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28301.0003

28328.0000

 

 

This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). For models installed outside the U.S.A., comply with the applicable Plumbing /SanitationCode.

00656.0000

00831.0000

 

 

 

 

-

160°

 

 

 

 

 

+

190°

 

 

 

 

 

TEMPERATURE

HEATER

 

ADJUSTMENT

 

 

 

26527.0002

 

 

 

THERMOSTAT ASSEMBLY

 

 

BUNN-O-MATIC CORP

 

120VAC

®

MECHANICAL THERMOSTAT

ELECTRONIC THERMOSTAT

28368.0000

 

26536.0002

 

 

 

 

 

3

 

29170 011906

 

 

 

INITIAL SET-UP

1.Locate the drip tray assembly above the dispenser nested in the packing material.

2.Remove the drip tray and the drip tray cover and set them aside.

3.Remove the water strainer assembly from the drip tray and set it aside.

4.Remove the four legs from the packaging material, apply non-skid pads to the bottom of the legs and securely install the legs in the dispenser base.

ELECTRICAL REQUIREMENTS

CAUTION - The dispenser must be disconnected from the power source until specified in Initial Set-Up.

The 120 volt version of this dispenser has an attached cordset. The mating connector must be a NEMA 5-15R. The 120/208 volt and the 120/240 version of this dispenser has an attached cordset. The mating connector must be a NEMA 14-20R.

The 240 volt version of this dispenser has an attached cordset without plug.

ELECTRICAL HOOK-UP

CAUTION - Improper electrical installation will damage electronic components.

1.An electrician must provide electrical service as specified.

2.Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.

3.Open the front door of the dispenser and place the heater switch in the “OFF” (upper position).

4.Connect the dispenser to the power source.

5.If plumbing is to be hooked up later be sure the dispenser is disconnected from the power source. If plumbing has been hooked up, the dispenser is ready for Initial Fill & Heat.

PLUMBING REQUIREMENTS

This dispenser must be connected to a COLD WATER system with operating pressure between 20 and 90 psi (138 and 620 kPa) from a 12" or larger supply line. A shut-off valve should be installed in the line before the dispenser. Install a regulator in the line when pressure is greater than 90 psi (620 kPa) to reduce it to 50 psi (345kPa). The water inlet fitting is 14" flare.

NOTE - Bunn-O-Matic recommends 14" copper tubing for installations of less than 25 feet and 38" for more than 25 feet from the 12" water supply line. At least 18 inches of an FDA approved flexible beverage tubing, such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the countertop. Bunn-O-Matic does not recommend the use of a saddle valve to install the dispenser. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). For models installed outside the U.S.A., you must comply to the applicable Plumbing/Sanitation Code for your area.

PLUMBING HOOK-UP

1.Securely attach the short piece of tubing on the water strainer assembly to the inlet fitting on the bottom of the dispenser.

2.Flush the water line and securely attach it to the flare fitting on the water strainer assembly.

3.Turn on the water supply.

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29170 011906

 

INITIAL FILL & HEAT

CAUTION - The dispenser must be disconnected from the power source throughout the initial fill & heat, except when specified in the instructions.

1.Turn on the water supply and connect the dispenser to the power source.

2.Water will automatically flow into the tank to the proper level and then shut off. This will take less than five minutes.

3.When the tank is full of water, open the front door and place the heater switch in the “ON” (lower) position. A tank full of cold water will take approximately forty minutes for the water to heat on 120 volt versions, and

twenty minutes on 120/240 and 240 volt versions.

During this waiting period, complete these dispenser set-up steps:

a. Place a set of keyholes in the splash panel over the screws beneath the hopper access door and push down gently.

b.Place the drip tray onto the supports on the splash panel. Hook the tabs on the rear of the drip tray through the holes in the splash panel. Set the drip tray cover in place.

c. Fill the hopper(s) with the dry product to be dispensed.

LIQUID LEVEL CONTROL

The system automatically maintains the hot water tank’s level by energizing the refill solenoid when the water level drops below the liquid level probe. If the system has not successfully refilled in 7 1/2 minutes, a refill error occurs.

When a refill error occurs, the refill solenoid is de-energized and the rinse L.E.D. will flash about once every 5 seconds.

Once the cause of the refill error has been investigated (see the troubleshooting guide) and cured, the system can be reset by disconnecting (for at least 5 seconds) and then reconnecting the power to the machine.

RINSE TIMER

The dispenser is shipped from the factory with the rinse timer disabled. To enable the rinse timer, remove power from the dispenser, remove the lower access panel, and remove the jumper from J1 of the control board. Replace the lower access panel, and return power to the dispenser.

When enabled, the rinse timer automatically keeps track of the time since the dispenser was last run through a rinse sequence. If the dispenser detects that a rinse sequence has not been run for 8 hours, the rinse L.E.D. will flash continually. If, after an additional 4 hours (12 hours total), a rinse sequence has still not been run, the rinse

L.E.D. will light continuously, and the hopper drives will be disabled until a rinse sequence has been run.

RUNNING A RINSE SEQUENCE

1.Place the rinse/run switch in the rinse position.

2.Sequentially, or simultaneously, at each of the three positions dispense for at least 10 seconds.

3.After the rinse L.E.D. has extinguished, the rinse timer is reset.

4.Return the rinse/run switch to the run position.

DISPENSER USE

1.Simply place a cup on the drip tray beneath the desired dispensing tip.

2.Press the button to froth and dispense the beverage.

3.Release the button when the cup is approximately 2/3 full and allow the mixing chamber to drain. NOTE - The mixing chamber must drain at the end of each dispense.

5

29170 091598

 

COLD BEVERAGE SET-UP (OPTIONAL)

Cold beverages may be dispensed from the left dispense position. Simply place the HOT/COLD switch near the left whipper chamber in the “COLD” (upper) position.

CLEANING

Refer to the decal inside the hopper access door for cleaning recommendations and procedures.

The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment.

ADJUSTMENTS

The hot or cold beverage solenoids are preset to dispense approximately 9/10 ounce per second. This amount can be adjusted:

1.Disconnect the dispenser from the power source.

2.Remove the small left side access panel.

3.Rotate the control at the base of the desired solenoid(s) clockwise to decrease or counterclockwise to increase the amount of water.

4.For cold beverage adjustment remove the 1-1/2” plug on the lower left side of the dispenser and rotate the needle valve clockwise to decrease or counterclockwise to increase the amount of cold water.

HOPPER DISPENSE RATE OF PRODUCT

NOTE: The hopper dispense rates are preset at the factory. With 22 tooth gear and auger wire the preset dispense rate is approximately 3 to 5 grams per second. With 30 tooth gear and auger wire the preset dispense is approximately 5 to 7 grams per second. The hopper dispense rates can be individually programmed to a range of dispense rates from approximately 1.5 to 12 grams per second, as follows:

1.Place the rinse/run switch in the center (program) position.

2.Hold the increase/decrease switch in the desired (increase or decrease) position.

3.While holding the increase/decrease switch, press and release the dispense switch for the chamber you wish to adjust. Each time the dispense switch is pressed, the rinse L.E.D. will flash, and the motor speed for that hopper will be increased/decreased by approximately 2 1/2%.

4.Return the rinse/run switch to the run position after hopper motor speed adjustments are complete.

5.Once any of the three hopper motors has been programmed to the desired speed, either or both of the other hopper motors can be set to the same speed as follows:

a.Place the rinse/run switch in the center (program) position.

b.Press and hold the dispense switch that has been programmed for the correct speed.

NOTE: Care must be taken not to exceed 5 seconds, or a hopper throw test will occur.

c.Momentarily press the dispense switch for the hopper motor to be programmed. The rinse L.E.D. will light for approximately 1 second, indicating that the speeds have been set equal.

d.Release both dispense switches.

e.Repeat step 5. b. through 5. d. for remaining hopper motor if desired.

f.Return the rinse/run switch to the run position after hopper motor speed adjustments are complete.

HOPPER THROW TEST

The hopper throw rate, grams per second (g/s) or ounces per second (oz./s), can be checked by automatically running the hopper motor for 10 seconds.

1.Remove the steam collector and mixing chamber from under the hopper to be checked.

2.Position a small cup under the hopper outlet.

3.Place the rinse/run switch in the center (program) position.

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29170 011906

 

HOPPER THROW TEST(cont.)

4.Press and hold the dispense switch of the appropriate chamber for 5 seconds. The hopper motor will run for 10 seconds at the programmed speed.

5.Remove the cup and weigh the dispensed product. To calculate the throw rate (g/s or oz./s), divide the total weight of the dispensed product by 10.

6.Replace the mixing chamber and steam collector, and return the rinse/run switch to the run position.

DRAINING THE HOT WATER TANK

CAUTION - The dispenser must be disconnected from the power source throughout these steps.

1.Disconnect the dispenser from the power source.

2.Open front door and place tank heater switch in the “OFF” (upper) position.

3.Shut off and disconnect the incoming water supply.

4.Remove the top panel.

5.Gently remove one of the grommets from the tank lid.

6.Insert a tube to the bottom of the tank and syphon ALL of the water out.

NOTE - The dispenser must be refilled using the INITIAL FILL & HEAT steps before reconnecting to the power source.

TROUBLESHOOTING

A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.

Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.

All electronic components have 120 volt ac or 240 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in board failure.

Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp.

Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for more than ten minutes without a supply of water.

The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid twists and kinks in the tubing.

Make certain that all plumbing connections are sealed and electrical connections tight and isolated.

This unit is heated at all times. Keep away from combustibles.

WARNING – • Exercise extreme caution when servicing electrical equipment.

Unplug the dispenser when servicing, except when electrical tests are specified.

Follow recommended service procedures

Replace all protective shields or safety notices

7

29170 091598

 

TROUBLESHOOTING (cont.)

 

PROBLEM

PROBABLE CAUSE

Product will not dispense

1. No water

 

2. No power or incorrect voltage to

 

the dispenser

3. Dispense Switch

4. Dispense Solenoid Valve

(Hot or Cold)

5. Solenoid Valve (Inlet)

REMEDY

Water lines and valves to the dispenser must be open.

(A1) Check for 120 volts across the black and white wires on two wire 120 volt dispenser.

(A2) Check for 120 volts across the red and white wires and the black and white wires and 240 volts across the red and black wires on three wire 120/240 volt dispenser.

(A3) Check for 240 volts across the white and black wires on two wire 240 volt dispenser.

(B) Check circuit breakers or fuses.

Refer to Service - Dispense Switch for testing procedure. See page 22

Refer to Service - Dispense Solenoid Valve for testing procedures. See page 33 or 34

Refer to Service - Solenoid Valve (Inlet) for testing procedures. See page 35

6.

Control Board

Refer to Service - Control Board

 

 

and Probe for testing procedures.

 

 

See page 18

7.

Overflow Protection Switch

Refer to Service - Overflow Protec-

 

 

tion Switch for testing procedures.

 

 

See page 31

8.

Auger Drive

Refer to Service - Auger Drive. See

 

 

page 13

8

29170 080900

 

TROUBLESHOOTING (cont.)

PROBLEM

Product will not dispense (cont.)

Water is not hot

Spitting or excessive steaming

PROBABLE CAUSE

REMEDY

9.Water Strainer

10.Lime build-up

CAUTION - Tank and tank components should be delimed regularly depending on local water conditions. Excessive mineral build-up on stainless steel surfaces can initiate corrosive reactions resulting in serious leaks.

(A)Direction of flow arrow must be pointing towards dispenser.

(B)Remove the strainer and check for obstructions. Clear or replace.

Inspect the tank assembly for excessive lime deposits. Delime as required.

11. Rinse cycle not run for 12 hours.

Refer to Operations - Rinse Timer.

 

See page 5

1. Limit Thermostat

Refer to Service - Limit Thermostat

CAUTION - Do not eliminate or by-

for testing procedures. See page 30

pass limit thermostat. Use only BOM

 

replacement part #29329.1000

 

2. Control Thermostat

Refer to Service - Control Thermo-

 

stat for testing procedures. See page

 

20

3.Tank Heater

4.Tank Heater Switch

1. Lime build-up

CAUTION - Tank and tank components should be delimed regularly depending on local water conditions. Excessive mineral build-up on stainless steel surfaces can initiate corrosive reactions resulting in serious leaks.

Refer to Service - Tank Heater for testing procedures. See page 36

Refer to Service - Tank Heater Switch for testing procedures. See page 38

Inspect tank assembly for excessive lime deposits. Delime as required.

2. Control Thermostat

Refer to Service - Control Thermo-

 

stat for testing procedures. See page

 

20

9

29170 080900

 

TROUBLESHOOTING (cont.)

 

PROBLEM

PROBABLE CAUSE

Dripping from dispense tip

1. Lime build-up

 

CAUTION - Tank and tank compo-

 

nents should be delimed regularly

 

depending on local water conditions.

 

Excessive mineral build-up on stain-

 

less steel surfaces can initiate corro-

 

sive reactions resulting in serious

 

leaks.

REMEDY

Inspect the tank assembly for excessive lime deposits. Delime as required.

 

2.

Dispense Solenoid Valve

Remove the dispense solenoid valve

 

(Hot or Cold)

and clear any obstructions. Rebuild

 

 

 

or replace the valve if necessary. See

 

 

 

page 33 or 34

Water flows into tank continuously

1. Control Board

Refer to Service - Control Board and

 

 

 

Probe for testing procedures. See

 

 

 

page 18

 

2.

Solenoid Valve (Inlet)

Refer to Service - Solenoid Valve

 

 

 

(Inlet) for testing procedures. See

 

 

 

page 35

 

3.

Overflow Protection Switch

Refer to Service - Overflow Protec-

 

 

 

tion Switch for testing procedures.

 

 

 

See page 31

Product overflows container

1. Dispense Switch

Refer to Service - Dispense Switch

 

 

 

for testing procedures. See page 22

 

2.

Dispense Solenoid Valve

Remove the solenoid valve and clear

 

(Hot or Cold)

any obstructions. Rebuild or replace

 

 

 

the valve if necessary. See page 33

 

 

 

or 34

10

29170 080900

 

TROUBLESHOOTING (cont.)

 

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Weak product

1. Water temperature

Place an empty container beneath

 

 

 

the dispense tip. Initiate a dispense

 

 

 

cycle and check the water tempera-

 

 

 

ture immediately below the dispense

 

 

 

tip with a thermometer.

 

 

 

(A) Reading for mechanical thermo-

 

 

 

stat models should be 180°F(82°C)

 

 

 

to 200°F (93°C) (see thermostat tem-

 

 

 

perature settings decal in USER NO-

 

 

 

TICES on page 3.

 

 

 

(B) Reading for electronic thermo-

 

 

 

stat should be185°F(85°C) to190°F

 

 

 

(88°C).

 

 

 

Adjust the control thermostat to in-

 

 

 

crease or decrease the water tem-

 

 

 

perature. Replace if necessary.

 

2.

Whipper Motor

Refer to Service - Whipper Motor for

 

 

 

testing procedure. See page 25

 

3.

Frother

Refer to Service - Frother Compo-

 

 

 

nents. See page 24

 

4.

Dispense Solenoid Valve

Refer to Service - Dispense Solenoid

 

(Hot or Cold)

Valve for test procedures. See page

 

 

 

33 or 34

 

5.

Auger Drive

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 13

 

6.

Auger Spring

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 13

 

7.

Auger Motor

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 16

 

8.

Rinse/Run Switch

Refer to Service - Rinse/Run Switch

 

 

 

for test procedures. See page 32

 

9.

Rinse Timer

Refer to Operations - Rinse Timer.

 

 

 

See page 5

11

29170 080900

 

TROUBLESHOOTING (CONT.)

 

 

PROBLEM

PROBABLE CAUSE

Dispenser is making unusual

1.

Plumbing Lines

noises

 

 

 

2.

Water Supply

 

3.

Tank Heater

Excess dust

1. Fan

 

2.Control Board

Display not lit

1. Lamp

 

2.

Lamp Holder

 

3.

Starter - Lamp

 

4.

Ballast

REMEDY

Plumbing lines should not be resting on the counter top.

(A)The dispenser must be connected to a cold water line

(B)Water pressure to the dispenser must not exceed 90 psi (620 kPa) Install a regulator if necessary to lower the working pressure to approximately 50 psi (345 kPa).

Remove and clean lime off the tank heater. See page 36

Refer to Service - Fan for testing procedures. See page 24

Refer to Service - Control Board for testing procedures. See page 18

Refer to Service - Lamp, see page 28 for lamp replacement.

Refer to Service - Lamp Holder for testing procedures. See page 28

Refer to Service - Starter for testing procedures. See page 29

Refer to Service - Ballast for testing procedures. See page 17

12

29170 080900

 

SERVICE

AUGER DRIVE COMPONENTS

This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. The dispenser should be unplugged when servicing, except when electrical tests are required and the test procedure specifically states to plug in the dispenser.

COMPONENT ACCESS

WARNING - Disconnect the dispenser from the power source before the removal of any panel or the replacement of any component.

All components are accessible by opening the door, removal of the door panels, dispenser top covers, hoppers, hopper support plate, splash guard, splash panel with drip tray, lower front access panel, side and rear access covers.

Contents

 

Auger Drive Components ......................................

13

Auger Motor .........................................................

16

Ballast ...................................................................

17

Control Board .......................................................

18

Control Thermostat ...............................................

20

Dispense Switch ...................................................

22

Fan ........................................................................

23

Frother .................................................................

24

Hot/Cold Switch ....................................................

26

Increase/Decrease Switch .....................................

27

Lamp Holder .........................................................

28

Lamp ....................................................................

28

Lamp Starter and Socket ......................................

29

Limit Thermostat ..................................................

30

Overflow Protection Switch ..................................

31

Rinse/Run Switch .................................................

32

Solenoid (Cold Drink - Optional) ...........................

33

Solenoid (Dispense) .............................................

34

Solenoid (Inlet) .....................................................

35

Tank Heater ..........................................................

36

Tank Heater Switch ...............................................

38

Transformer ..........................................................

39

Whipper Motor .....................................................

25

Wiring Diagrams ..........................................

40 & 41

13

J1

J2

J4

J3

P1637.40

FIG. 1 AUGER DRIVE COMPONENTS

isconnect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the

 

 

 

lay

 

 

 

 

the

 

 

 

 

indication

 

 

 

must

 

be

 

4

0

to

24

 

5

volts

dc.

 

 

nser

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

propriate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

itch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

d

s

 

s

e

m the

b

l

y

.

negative

 

 

(green)

 

wire.

 

 

With

the

rinse/run

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

 

 

 

 

the

 

 

Refer

 

 

positive

 

(white/red)

to

 

 

wire

Figs.

for

the

sitive

 

 

located

 

on

 

(white/orange)the

 

 

rear

of

wire

the

auger

motor

for

mounting

 

the

center

 

motor

 

 

 

 

 

sitivede

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bottom

 

 

 

 

 

rear

 

 

3et,. With

 

 

 

 

 

 

2

 

 

 

 

 

 

 

9

 

 

 

1

 

 

7

 

 

0

 

 

2m. Disconnect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

part

 

 

of

 

the

the

Disconnect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the

 

TestLocation:1e.

Procedures

-

Auger

motors:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Early

1

2

2

 

 

HopperRemoval,PFIG.

SERVICE

AUGER DRIVE COMPONENTS (CONT.)

14.Install hopper assy (20) in the dispenser by sliding hopper assy in the guides on the hopper support plate (19) until the slot in the bottom rear the hopper seats against the shoulder screw (18) in the hopper support plate.

Removal, Cleaning and Replacement:

Hopper & Auger (Late Models):

1.Open the dispenser door and raise the top front cover.

2.Lift the front edge of hopper assy (17) over the tab on hopper support plate (16) and slide hopper assembly out the front of the dispenser.

3.Remove hopper lid (1) and empty product.

4.Pull off the ejector elbow (10).

5.Remove agitator disk assy (2) by pushing out on the side of the hopper, rotating the agitator disk assy out of the mounting hubs and lifting the agitator disk assy from the hopper. Remove the mixing blades (4) from the agitator disk by tugging sharply.

6.Remove auger (9) by pulling it out the front of the hopper (8).

7.Remove the auger drive bracket by turning it clockwise whilde holding the auger drive shaft firmly.

8.Slide auger drive shaft (5) from auger drive shaft bushing (3) and remove from hopper (8).

9.Remove locknut (7) from auger drive shaft bushing (3) and remove auger drive shaft bushing from hopper (8).

10.Wash components in a mild solution of dish detergent using a bristle brush when needed.

11.Rinse and dry each item thoroughly.

12.Check for damaged or broken components, replace any if necessary and reassemble hopper assembly.

13.Install hopper assy (17) in the dispenser by sliding hopper assy in the guides on the hopper support plate (16) until the slot in the bottom rear the hopper seats against the shoulder screw (15) in the hopper support plate.

1

 

 

2

 

 

 

4

 

 

3

 

 

5

 

6

 

 

7

9

10

 

 

8

 

 

 

Late Models

 

 

17

 

12 13

14 11 15 16

 

 

 

P2210.30

FIG. 3 AUGER DRIVE & HOPPER DISASSEMBLY

1.

Hopper Lid

9.

Auger Wire

2.

Agitator Disk Assy

10.

Ejector Elbow

3.

Auger Drive Shaft

11.

Auger Motor Mount-

 

Bushing

 

ing Panel

4.

Mixing Blade

12. Auger Motor Bracket

5.

Auger Drive Shaft

13.

Auger Motor

6.

Auger Drive Bracket

14.

Dust Seal

7.

Locknut

15.

Shoulder Screw

8.

Hopper

16. Hopper Support plate

 

 

17.

Hopper Assembly

29170 080900

15

SERVICE (cont.)

AUGER DRIVE COMPONENTS (cont.)

Auger Drive Motor (Refer to Fig. 2 & 3):

1.Remove all hopper assemblies (20,17) and set aside for reassembly.

2.Remove the four #8-32 screws securing the hopper support plate (19,16), remove plate and set aside for reassembly.

3.Remove the four #8-32 locking screws, located inside the dispenser housing on the front of the auger motor mounting panel (14,11), securing auger motor mounting bracket (15,12) and auger motor (16,13) to the rear of the auger motor mounting panel (14,11).

4.Disconnect the wires from the auger motor (16,13) to be removed.

5.Remove auger motor mounting bracket (15,12), auger motor (16,13) and dust seal (17,14) as an assembly.

6.Remove dust seal (17,14) from auger motor (16,13).

7.Remove the four #8-32 screws securing the auger motor to the auger motor mounting bracket.

8.Remove auger motor and discard.

9.Using four #8-32 screw install new auger motor (16,13) on mounting bracket (15,12).

10.Install dust seal (17,14) on auger motor shaft.

11.Using four #8-32 locking screws install auger motor, dust seal and mounting bracket to the rear of the auger motor mounting panel (14,11)

12.Reconnect the wires to the terminals on the auger motor.

13.Install hopper support plate (19,16) and all hopper assemblies (20,17).

14.Refer to Fig. 4 when reconnecting wires.

LEFT

CENTER

RIGHT

RED to WHI/RED to

 

 

 

RED to WHI/ORN to

Control Board J3-3

 

 

 

Control Board J3-2

BLK to GRN from

 

BLK to GRN from

Control Board J3-4

 

Control Board J3-4

FIG. 4 AUGER MOTOR TERMINALS

RED toWHI/

BLU to Control Board J3-1

BLK to GRN from Control Board J3-4

P1639

16

29170 080900

 

SERVICE (cont.)

BALLAST

Removal and Replacement:

1. Disconnect the wires from the ballast.

2. Remove the two #8-32 screws securing the ballast to the component bracket.

3. Remove and discard ballast.

4. Install new ballast using two #8-32 screws to se-

cure ballast to the component bracket..

5. Refer to Fig. 6 when reconnecting the wires.

BLK to Main Wiring

Harness

BLK to BLU from Door

Interconnect

Harness

FIG. 5 BALLAST

P1637.40

 

P1447

FIG. 6 BALLAST TERMINALS

Location:

The front door lamp ballast is located behind the front access panel on the left side of the component bracket.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the two black leads on the ballast from the door interconnect harness and the dispenser main harness.

3.Check for continuity between the two black leads on the ballast.

If continuity is present as described the ballast is operating properly.

If continuity is not present as described, replace the ballast.

17

29170 091598

 

SERVICE (cont.)

CONTROL BOARD

J1

 

J2

 

J4

 

J3

 

FIG. 7 CONTROL BOARD

P1637.40

 

Location:

The Control Board is located behind the lower front access cover mounted on the component bracket.

Test Procedure:

Liquid Level Control Circuitry:

1.Disconnect the dispenser from the power source.

2.Disconnect the six pin connector from J3 of the control board.

3.With a voltmeter, check the voltage across pins 5 & 6 of the six pin connector on the wiring harness. Connect the dispenser to the power source. The indication must be 24 volts ac.

4.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to step 5. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

5.Reconnect the six pin connector of the wiring harness to J3 of the control board.

6.Disconnect the four pin connector from J4 of the control board.

7.With a voltmeter, check the voltage across pins 1 & 4 of the four pin connector on the wiring harness. Connect the dispenser to the power source. The indication must be:

a) 120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models.

b) 240 volts ac for two wire 240 volt models.

8.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to step 9. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

9.Reconnect the four pin connector of the wiring harness to J4 of the control board.

10.Disconnect the ten pin connector from J2 of the control board.

11.Carefully connect a piece of insulated jumper wire to pin 10 (top right) of J2 on the control board. Keep the other end of this wire away from any metal surfaces of the dispenser.

12.With a voltmeter, check the voltage across the terminals of the inlet solenoid valve. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models after a delay of approximately 10 seconds.

13.Touch the free end of the jumper wire to the dispenser housing. The indication must be 0.

14.Move the jumper wire away from the housing. The indication must, again, be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models after a delay of approximately 5 seconds.

15.Disconnect the dispenser from the power source and remove the jumper wire.

If voltage is present as described, proceed to step 16. If the voltage is not present as described, replace the control circuit board.

16.Reconnect the ten pin connector of the wiring harness to J2 of the control board.

18

29170 091598

 

SERVICE (cont.)

CONTROL BOARD (cont.)

17.Gently pull the liquid level probe out of the tank lid and inspect for corrosion. Replace it if necessary.

18.Place the probe so that neither end is in contact with any metal surface of the dispenser.

19.With a voltmeter, check the voltage across the terminals of the inlet solenoid valve. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models after a delay of approximately 10 seconds.

20.Move the probe’s flat end to the dispenser housing. The indication must be 0.

21.Move the probe’s flat end away from the housing. The indication must, again, be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models after a delay of approximately 5 seconds.

22.Disconnect the dispenser from the power source.

If the voltage is present as described, re-install the probe. The liquid level control circuitry is operating properly.

If the voltage is not present as described, check the pink probe wire and green tank wire for continuity.

5.Reconnect the six pin connector of the wiring harness to J3 of the control board.

6.Check that the rinse/run switch is in the run position.

7.With a voltmeter, check the voltage across the red

(+) terminal and the black (-) terminal of the auger motor. Connect the dispenser to the power source. Press and hold the appropriate dispense switch. After a delay of about .6 seconds, the indication must be between +4.0 and +24.5 volts dc.

If the voltage is present as described, the hopper motor control circuitry is operating properly.

If the voltage is not present as described, replace the control circuit board.

Removal and Replacement:

1.Disconnect the three plugs on the main wiring harness from the connectors on the control board.

2.Remove the four #6-32 keps nuts securing the control board to the component bracket.

3.Remove control board and discard.

4.Install new control board on the component bracket using four #6-32 keps nuts.

5.Reconnect the three plugs on the main harness to the connectors on the control board.

Hopper Motor Control Circuitry:

1.Disconnect the dispenser from the power source.

2.Disconnect the six pin connector from J3 of the control board.

3.With a voltmeter, check the voltage across pins 5 & 6 of the six pin connector on the wiring harness. Connect the dispenser to the power source. The indication must be 24 volts ac.

4.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to step 5. If voltage is not present as described, refer to the

Wiring Diagrams and check the dispenser wiring harness.

J2

J3

 

 

J2

 

 

 

J3

 

 

J4

J1

 

 

 

J1

J4

 

 

P1640

FIG. 8 CONTROL BOARD CONNECTORS

19

 

29170 091598

 

 

SERVICE (cont.)

 

 

CONTROL THERMOSTAT

Electronic Thermostat (Optional):

 

 

1.

Disconnect the dispenser from the power source.

 

 

2.

Disconnect the black wire of the control thermo-

 

 

 

stat from the black wire from the limit thermostat.

 

 

3.

Remove temperature probe from the tank.

 

 

4.

With a voltmeter, check the voltage across the

 

 

 

black wire from the control thermostat and the

 

 

 

white wire on the tank heater with the tank heater

 

 

 

switch in the “ON” (lower) position. Connect the

 

 

 

dispenser to the power source. The indication

 

 

 

must be120 volts ac for two wire 120 volt models.

 

 

If voltage is present as described the control thermo-

 

 

stat is operating properly. Reinstall temperature probe

 

 

into the tank.

 

 

If voltage is not present as described, replace the

 

 

control thermostat.

 

 

P1445

 

Location:

Removal and Replacement:

 

The

1.

Disconnect the wires from the thermostat.

 

2.

Remove the thermostat capillary bulb/tempera-

is located

 

ture probe by firmly pulling up on the capillary

of the

 

 

grommet at the tank lid.

 

 

 

Test

3.

Loosen the two #8-32 screws securing the ther-

 

mostat bracket to the upper left rear of the dis-

Mechanical

 

 

penser housing.

1.

 

4.

Remove thermostat bracket and thermostat as an

2.

stat

 

assembly.

 

5.

Install the new thermostat and bracket inside the

3.

Remove

 

dispenser housing on the upper left rear side and

4.

With

 

tighten the two #8-32 screws.

 

wire

6.

Slide the grommet to the line 4.5” above the bulb

 

red

 

on the new capillary tube (mechanical thermostat

 

switch

 

only).

 

must

7.

Insert the capillary bulb/temperature probe through

 

 

the hole in the tank lid and press the grommet

 

a)

 

firmly and evenly so that the groove in the grom-

 

b)

 

met fits into the tank lid.

 

els.

8.

Carefully bend the capillary tube so that the tube

 

c)

 

and bulb inside the tank are in the vertical position

5.

three

 

and away from any electrical connections (me-

 

 

chanical thermostat only).

If voltage

9.

Refer to Fig. 10 and reconnect the wires.

 

 

stat is

NOTE - The capillary tube must be clear of any electri-

If voltage

 

cal termination and not kinked.

thermostat

 

 

 

 

 

29170 091598

SERVICE (cont.)

CONTROL THERMOSTAT (cont.)

 

 

 

TAN to WHI/BRN in

 

 

 

Main Wiring Harness

HI

OFF

 

BLK to Main

NNBU

 

 

 

 

 

Wiring Harness

 

 

- +

WHI to Main

BLK from Limit

 

Wiring Harness

 

 

Thermostat

 

 

BLK from Tank

 

 

Heater Switch

BLK to Main

 

 

 

 

 

 

Wiring Harness

 

MECHANICAL THERMOSTAT

ELECTRONIC THERMOSTAT

 

FIG. 10 THERMOSTAT TERMINALS

P1448

21

29170 091598

 

SERVICE (cont.)

DISPENSE SWITCH

P1631

FIG.11 DISPENSE SWITCH

Location:

If voltage is present as described, proceed to #7.

If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

7.Check for continuity across the terminals (top right to top left; bottom right to bottom left) of the dispense switch with the switch in the “ON” position. Continuity must not be present when the switch is in the “OFF” (released) position.

If continuity is present as described, reconnect the connector to the door interconnect wiring harness, the switch is operating properly.

If continuity is not present as described, replace the switch.

The dispense switches are located on the lower outside of the dispenser door.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Open the dispenser door and remove the bottom door cover.

3.Disconnect the wires from the door interconnect wiring harness to the dispense switch to be tested.

4.Check for voltage across the black and red/black wires for the right dispense switch, black and red/ white wires for the center dispense switch or the black and red wires for the left dispense switch from the door interconnect wiring harness. Connect the dispenser to the power supply. The indication must be:

a)120 volts ac for two wire 120 volt models, 120/ 208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models.

5.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

6.With a voltmeter, check the voltage across the blue/black (+) and orange (-) wires for the right dispense switch, black/white (+) and orange (-) wires for the center dispense switch, or blue/white

(+) and orange (-) for the left dispense switch from the door interconnect wiring harness. Connect the dispenser to the power source. The indication must be +5 volts dc.

Removal and Replacement:

1.Open the dispenser door.

2.Remove the five #6-32 screws securing the bottom door cover and remove cover.

3.Disconnect the wires on the dispense switch to be removed from the door interconnect wiring harness.

4.Compress the clips inside the door on the dispense switch and gently push the switch through the opening.

5.Push new switch into the opening and spread the clips to hold the switch in the door.

6.Reconnect the wires to the dispense switch from door interconnect wiring harness.

7.Reinstall the door bottom cover using five #6-32 screws.

8.Refer to Fig. 12 when reinstalling wires.

 

BLK

 

 

RED/BLK

 

 

BLK

 

 

RED/WHI

 

BLK

RIGHT

RED

ORN

 

 

BLU/BLK

 

 

CENTER

 

 

ORN

 

 

BLK/WHI

 

 

LEFT

 

 

ORN

 

BLU/WHI

 

22

FIG. 12 DISPENSE SWITCH TERMINALS P1449

29170

080900

SERVICE (cont.)

FAN

vacuum

J1

J2

J4

J3

FIG. 13 FAN

P1436

 

Location:

The fan is located inside the dispenser housing on the right rear of the dispenser base plate.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the black and white wires from the fan terminals.

3.With a voltmeter, check the voltage across the black and white wires. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt, three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models.

If voltage is present as described, replace the fan.

If voltage is not present as described, refer to Wiring Diagrams and check the dispenser wiring harness.

the

Remove

Disconnect

2.

1.

23

FBLK I fromG Main.

1 4

F A N

T E R M I N A L S P1507

SERVICE (cont.)

FROTHER AND WHIPPER MOTOR (cont.)

ward and at the same time twisting it clockwise.

6.Pull the mixing chamber (2) out of the whipper chamber (4).

7.Remove the two #4-40 screws securing the fan baffle(13) to the whipper motor mouting panel and remove fan baffle. Set aside for reassembly.

8.Remove dispense tip (3) and twist the whipper chamber (4) clockwise and pull it off the whipper chamber receptacle (8).

9.Pull the frother (6) off the motor shaft. Notice the flat side on the shaft and the matching flat inside the frother. It is important that these two flats are lined up when reassembling.

10.Slip the o-ring (5) off the whipper chamber receptacle (8).

11.Remove the two nuts (7) securing whipper chamber receptacle (8) and whipper motor (10) to the front panel.

NOTE: To remove the recptacle only, rotate clockwise until the receptacle clears the nuts (7) and slides off of the motor shaft.

12.Slide the receptacle with seal off of the motor shaft.

13.Slide the slinger (9) off of the motor shaft.

14.Disconnect the black leads on the motor (10) from the main wiring harness.

15.Remove motor and discard.

16.Install new motor (10) on rear of front panel and secure with two nuts (7) and connect black leads on the motor to the main wiring harness. Refer to Fig. 17 when reconnecting wires

17.Slide slinger (9) onto the motor shaft flush against the front panel.

18.Wash remaining components in a mild solution of dish detergent using a bristle brush.

19.Rinse thoroughly and allow to dry before reinstalling in the dispenser.

20.Slide whipper chamber receptacle with seal (8)

and o-ring (5) on to the motor shaft.

21Rotate the receptacle with seal (8) counterclockwise until it snaps into place on the motor mounting nuts (7).

22.Push frother (6) onto the motor shaft, making sure the flat in the frother (6) lines up with the flat on the motor shaft.

23.Install whipper chamber (4) on the whipper cham-

ber receptacle (8) by twisting counterclockwise until the tabs on the whipper chamber (4) lock with the tabs on the whipper chamber receptacle (8). Be sure dispense port is pointing down.

24.Install dispense tip (3) into the bottom of the whipper chamber (4).

25.Using two #4-40 screws secure the fan baffle to the whipper motor mounting panel.

26.Install vacuum hose (12) on fan baffle (13).

27.Install hopper support panel using four #8-32 screws.

28.Slip the mixing chamber (2) onto the mixing chamber water inlet tube far enough so the mixing chamber (2) will seat inside the whipper chamber

(4).

29.Install the steam collector (1) onto the mixing chamber (2) by pushing down and toward the dispenser while twisting until the flange on the steam collector lines up with the slot in the front panel.

30.Install hopper assembly in the dispenser by sliding hopper assembly on the hopper support panel until the slot in the bottom rear of the hopper seats against the shoulder screw in the hopper support panel.

 

RIGHT

 

CENTER

LEFT

BLK to Main

Harness WHI/VIO

 

 

BLK to Main

 

Harness WHI

 

BLK to Main Harness ORA

 

BLK to Main Harness WHI

BLK to Main Harness RED

BLK to Main Harness WHI

FIG.17 WHIPPER MOTOR TERMINALS P1451.40

25

29170 091598

 

SERVICE (cont.)

HOT/COLD SWITCH (Optional)

FIG. 18 HOT/COLD SWITCH

P1642.40

 

Location:

 

The hot/cold switch is located on the left side of the whipper motor mounting panel.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the four pin plug from the hot/cold switch and the four pin connector on the main wiring harness.

3.Press the left dispense switch on the door and, with a voltmeter, check the voltage across the white wire (pin 4) and red wire (pin 2) in the four pin connector on the main wiring harness. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models, and three wire 120/208 volt and 120/240 volt models.

b)240 volts ac for two wire 240 volt models.

4.Disconnect the dispenser from the power source.

If voltage is present as described, reconnect the four pin plugs and proceed to #5.

If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

5.Disconnect the wires from the switch terminals.

6.With the switch in the “Cold” (upper) position check for continuity between the center terminal and the bottom terminal. With the switch in the “Hot” (lower) position check for continuity between the center terminal and the upper terminal.

If continuity is present as described, the hot/cold switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove all wires from the switch terminals.

2.Remove the mounting nut on the front of the whipper motor mounting panel.

3.Remove the hot/cold switch from the rear of the front panel and discard.

4.Reconnect the wires to the terminals on the rear of the new switch.

5.Push new hot/cold switch through the hole on the left side of the whipper motor mounting panel and secure with mounting nut.

6.Refer to Fig. 19 when reconnecting the wires.

TAN to Main Harness

RED to Main Harness

WHI/YEL to Cold

Solenoid

FIG. 19 HOT/COLD SWITCH TERMINALS P1208

26

29170 080900

 

SERVICE (cont.)

Removal and Replacement:

 

INCREASE/DECREASE SWITCH

1.

Open the dispenser door.

 

2.

Remove the facenut securing the increase/de-

 

 

 

crease switch the whipper motor mounting panel.

 

3.

Remove switch with wires attached from the back

 

 

side of the whipper motor mounting panel.

 

 

4.

Disconnect the wires from the switch and discard

 

 

the switch.

 

 

5.

Refer to Fig. 21 when connecting the wires to the

 

 

new switch.

 

 

6.

Install new switch with wires attached through the

 

 

hole in the whipper mounting panel and secure

 

 

with facenut.

 

 

 

RED/BLK from Control

 

 

 

Board J2-6

 

 

 

GRN from Control

 

 

 

Board J2-9

 

 

 

BRN/BLK from Control

 

 

 

Board J2-1

 

 

 

FIG. 21 INCREASE/DECREASE SWITCH

P1208

P1642.40

 

 

 

TERMINALS

 

FIG. 20 INCREASE/DECREASE SWITCH

 

 

 

 

 

Location:

 

 

 

The increase/decrease switch is located on the

 

 

 

lower left front of the whipper motor mounting panel.

 

 

 

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the wires from the switch terminals.

3.Check for continuity between the center terminal and upper terminal with switch in the decrease (lower) position. Check for continuity between the center terminal and the lower terminal with the switch in the increase (upper) position. Continuity must not be present when the switch is in the center position.

If continuity is present as described, the switch is operating properly.

If continuity is not present as described, replace the switch.

27

29170 091598

 

SERVICE (cont.)

LAMP HOLDER

 

1

 

 

 

3

5

 

4

2

 

 

6

 

 

 

FIG. 22 LAMP HOLDERS

P1643.70

 

 

1.

Door Assy

4.

Upper Panel

2.

Lamp Holders

5.

Lower Panel

3.

Lamp

6.

Starter W/Socket

Location:

The lamp holders are located on the front of the upper panel behind the display panel.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Remove upper door panel (4) and disconnect the door wiring harness from the leads on the lamp holders.

3.Remove lamp from lamp holders.

4.Check for continuity on each lead of the lamp holders.

If continuity is present as described, lamp holders are operating properly.

If continuity is not present as described replace the lamp holder.

Removal and Replacement:

1.Open dispenser door (1).

2.Remove the five #6-32 screws securing lower door panel (5) to the door (1) and remove cover.

3.Disconnect the door wiring harness from the door interconnect wiring harness.

4.Remove five #6-32 screws securing the upper door panel (4) to the door (1).

5.Remove the upper door cover (4), lamp (3), lamp holders (2) and door wiring harness as an assembly.

6.Disconnect the wires from the lamp holder to be replaced from the door wiring harness.

7.Rotate lamp (3) 90° and remove from lamp holders (2).

8.Remove the #6-32 screw securing the lamp holder

(2)to be removed, remove lamp holder (2) and discard.

9.Install new lamp holder (2) and secure with a #6- 32 screw.

10.Connect the wires on the new lamp holder to the door wiring harness.

11.Install lamp (3) into lamp holders (2) and turn 90° until the pins snap in place.

12.Install upper door panel (4), lamp (3), lamp holders (2) and door wiring harness as an assembly using five #6-32 screws.

13.Reconnect the plug on the door wiring harness to the connector on the door interconnect wiring harness.

14.Install the door lower panel (5) using five #6-32 screws.

LAMP REPLACEMENT (Refer to Fig. 22)

1.Remove the outside window and display graphic.

2.Remove the two #4-40 screws securing the inside window to the door and remove window.

3.Rotate lamp (3) 90° and remove from the lamp holders (2).

4.Insert new lamp (3) into lamp holders (2) and turn 90° until the pins snap in place.

5.Using two #4-40 screws secure the inside window to the door.

6.Install outside window and slide display graphic down between the inside window and the outside window.

28

29170 091598

 

SERVICE (cont.)

LAMP STARTER and SOCKET

Location:

The lamp starter (6) is located inside the door assy

(1) on the top of the door lower panel (5).

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the starter leads from the door wiring harness.

3.Remove lamp starter from starter socket.

4.Check for continuity on each lead of the starter socket.

If continuity is present as described the starter socket is operating properly.

If continuity is not present as described replace the the starter socket.

6.Remove starter (6) from starter socket.

7.Check for continuity across the pins on the bottom of the starter (6).

If continuity is present as described, replace the starter. If continuity is not present as described, starter is operating properly.

Note: If continuity tests are both as described and lamp does not light, replace the starter socket.

Removal and Replacement (Refer to Fig.22):

1.Open dispenser door assy (1)

2.Remove the five #6-32 screws securing the door lower panel (5) to the door assy (1).

3.Disconnect the leads on the starter socket from the door wiring harness.

4.Remove lower door panel (5) and starter w/socket

(6) as assembly.

5.Compress the spring tabs on the socket and remove socket from the door bottom cover (5).

6.Rotate starter 90° and remove from the starter socket.

7.Insert new starter (6) into socket and turn 90° until the pins snap in place.

8.Install new socket by compressing spring tabs on the socket and pushing the socket up through the hole in the lower door panel (5) and releasing spring tabs.

9.Connect the sockets leads to the door wiring harness.

10.Install door lower panel (5) with starter and starter socket on door assy (1) using five #6-32 screws.

29

29170 080900

 

J1

J2

J4

J3

BLK to Tank BLK to Control Heater Thermostat

P1800

FIG. 24 LIMIT THERMOSTAT TERMINALS

30

J1

J2

J4

J3

NOTE - The magnets must be at the top of float and there must be NO adjusting washers installed for the overflow protection switch to operate properly.

5.Install the nut beneath the copper overflow cup. Be sure not to overtighten.

6.Refer to Fig. 26 when reconnecting wires.

31

SERVICE (cont.)

RINSE /RUN SWITCH

FIG. 27 RINSE/RUN SWITCH

P1452.40

 

Location:

 

The rinse/run switch is located on the lower right side of the whipper motor mounting panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Check for continuity between the center left terminal and left bottom terminal, also between the center right terminal and the right bottom terminal with the switch in the rinse (upper) position. Check for continuity across the center left terminal and the top left terminal, also between center right right terminal and the right top terminal with the switch in the run (lower) position . Continuity must not be present when the switch is in the center position.

If continuity is present as described, the switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Open the dispenser door.

2.Remove the facenut securing the run/rinse switch to the whipper motor mounting panel.

3.Remove switch with wires attached from the back side of the whipper motor mounting panel.

4.Disconnect the wires from the switch and discard the switch.

5.Refer to Fig. 28 when connecting the wires to the new switch.

6.Install new switch with wires attached through the hole in the whipper motor mounting panel and secure with facenut.

WHI/BRN to

GRY to Control

Door Harness

Board J2-2

 

GRN to Control

 

Board J2-9

BLK from

 

Main Harness

 

WHI/BRN to

 

Door Harness

YEL to Control

 

 

Board J2-3

P1644

FIG. 28 RINSE/RUN SWITCH TERMINALS

32

29170 091598

 

SOLENOID VALVE (COLD WATER - OPTIONAL)

J1

J2

J4

J3

P1637.40

FIG. 29 COLD WATER SOLENOID VALVE

Location:

The cold water solenoid valve is located on the left side of the dispenser base just behind the component bracket.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the white and white/yellow wires from the solenoid valve. With the “HOT/COLD” switch in the "COLD" (upper) position press the left dispense switch on front of the door.

3.With a voltmeter, check the voltage across the white and white/yellow wires. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt, and 120/240 volt models.

b)240 volts ac for two wire 240 volt models.

4.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #5

If voltage is not present as described, refer to Wiring Diagrams and check dispenser wiring harness.

5.Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the white and white/yellow wires to the solenoid.

If continuity is not present as described, replace the solenoid valve.

6.Check the solenoid valve for coil action. Connect the dispenser to the power source. With "HOT/

COLD" switch in the "COLD" (upper) position press the left dispense switch and listen carefully in the vicinity of the solenoid valve for a "clicking" sound as the coil magnet attracts.

7. Disconnect the dispenser from the power source.

If the sound is heard as described and water will not pass through the solenoid valve, there may be a blockage in the water line before the solenoid valve or, the solenoid valve may require inspection for wear, and removal of waterborne particles.

If the sound is not heard as described, replace the solenoid valve.

Removal and Replacement:

1.Loosen the two screws securing the component bracket to the dispenser base. Lift the component bracket off of the base and move to the right.

2.Remove the white and white/yellow wires from the solenoid valve.

3.Turn off the water supply to the dispenser.

4.Disconnect the water lines to and from the solenoid valve.

5.Loosen the two #8-32 screws and washers securing the solenoid mounting bracket to the base. Remove solenoid bracket and solenoid valve as an assembly.

6.Remove the two #10-32 screws and lockwashers securing the solenoid valve to the solenoid bracket.

7.Using two #10-32 screws and lockwashers install new solenoid valve on solenoid mounting bracket.

8.Install the solenoid valve and bracket on the dispenser base and tighten the two #8-32 screws.

9.Securely fasten the water lines to and from the solenoid valve.

10.Refer to Fig. 30 when reconnecting the wires.

33

SERVICE (cont.)

SOLENOID VALVES (DISPENSE)

P1637.40

FIG. 31 DISPENSE SOLENOID VALVES

Location:

The dispense solenoids are located on the upper left side of the tank.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the white and white/violet, orange or tan wires from the solenoid valve. With the “RUN/ RINSE” switch in the "RINSE" (upper) position press the appropriate dispense switch on front of the door.

3.With a voltmeter, check the voltage across the white and white/violet, orange or tan wires. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models, three wire 120/208 volt, and 120/240 volt models.

b)240 volts ac for two wire 240 volt models.

4.Disconnect the dispenser from the power source,

If voltage is present as described, proceed to #5

If voltage is not present as described, refer to Wiring Diagrams and check dispenser wiring harness.

5.Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the white and white/violet, orange or tan wires to the solenoid.

If continuity is not present as described, replace the solenoid valve.

6.Check the solenoid valve for coil action. Connect the dispenser to the power source. With "RUN/ RINSE" switch in the "RINSE" (upper) position press the appropriate dispense switch and listen carefully in the vicinity of the solenoid valve for a "clicking" sound as the coil magnet attracts.

7.Disconnect the dispenser from the power source.

If the sound is heard as described and water will not pass through the solenoid valve, there may be a blockage in the tank water outlet before the solenoid valve or, the solenoid valve may require inspection for wear, and removal of waterborne particles.

If the sound is not heard as described, replace the solenoid valve.

Removal and Replacement:

1.Remove the white and white/violet,orange or tan wires from the solenoid valve.

2.Turn off the water supply to the dispenser.

3.Drain enough water from the tank (approximately 1.0 gallon) so the water level is below the dispense valve mounting hole.

4.Disconnect the water line from the solenoid valve.

5.Remove the #10-32 screw securing the solenoid valve to side of the tank. Remove solenoid valve.

6.Using the #10-32 screw install new solenoid valve on side of the tank

7.Push the water line onto the tube on bottom of solenoid valve.

8.Refer to Fig. 32 when reconnecting the wires.

TAN to Main Harness

LEFT

 

WHI to Main

CENTER

Harness

RIGHT

ORN to Main

Harness

 

 

WHI to Main

 

 

Harness

 

 

WHI/VIO to Main

 

 

Harness

 

 

WHI to Main

 

 

Harness

 

 

FIG. 32 DISPENSE SOLENOID VALVE

P1645

 

TERMINALS

 

 

34

 

29170 080900

 

 

J1

J2

J4

J3

WHI

2TestLocation:FIGSERVICE.

SERVICE (cont.)

TANK HEATER

P1637.40

FIG. 35 TANK HEATER

Location:

The tank heater is located inside the tank and secured to the tank lid.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.With a voltmeter, check the voltage across the black and white wires 120 volt or 240 volt models or black and red wires for 120/208 volt models or 120/240 volt models. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models;

b)208 volts ac for three wire 120/208 volt models.

c)240 volts ac for three wire 120/240 volt models and two wire 240 volt models.

3.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #4.

If voltage is not present as described, refer to the dispenser Wiring Diagrams and check the wiring harness.

36

SERVICE (cont.)

TANK HEATER (cont.)

WHI or RED to

BLK to Limit

Main Wiring

Thermostat

Harness

 

FIG. 36 TANK HEATER TERMINALS

P1218

 

37

29170 080900

 

SERVICE (cont.)

TANK HEATER SWITCH

FIG. 37 TANK HEATER SWITCH

P1642.40

 

Location:

The tank heater switch is located inside the dispenser on the upper right of the whipper motor mounting panel.

Test Procedure:

BLK from Main Harness (Mechanical Thermostat) WHI/BRN from Main Harness (Electronic Thermostat)

BLK from Main Harness (Mechanical Thermostat) WHI/BRN from Main Harness (Electronic Thermostat)

P1208

FIG. 38 TANK HEATER SWITCH TERMINALS

38

29170 091598

 

Removal

SERVICE (cont.)

 

 

 

TRANSFORMER

If voltage is not present as described, refer to the

 

Wiring Diagrams and check the main wiring harness.

 

5.

Check the voltage between J3-5 and J3-6 on the

 

 

six pin connector at the control board. Connect the

 

 

dispenser to the power source. The indication

 

 

must be 24 volts ac.

 

 

If voltage is present as described the transformer is

 

operating properly.

 

 

If voltage is not present as described, replace the

 

transformer.

 

 

Removal and Replacement:

 

 

1.

Loosen the two #8-32 screws securing the com-

 

 

ponent bracket to the dispenser housing base.

 

2.

Pull component bracket out the front of the dis-

 

 

penser far enough so the transformer connector

 

 

can be disconnected from the main wiring har-

 

 

ness.

 

 

3

Disconnect the transformer four pin connector

 

 

from the four pin plug on the main wiring harness.

 

4.

Remove the two #6-32 keps nuts securing the

 

 

transformer to the rear of the component bracket.

 

5.

Remove and discard the transformer.

 

 

6.

Install new transformer on the rear of the compo-

 

 

nent bracket and secure with two #6-32 keps nuts.

 

7.

Connect the four pin connector on the transformer

 

 

to four pin plug on the main wiring harness.

 

 

8.

Place the component bracket into position and

 

 

tighten the two #8-32 screws.

 

 

 

WHI/GRN - T8

 

 

WHI/BLK - T12

 

 

 

WHI - 120V T2, 240V T6

 

 

 

BLK - TI

 

 

 

P1647

 

39

FIG. 40 TRANSFORMER TERMINALS

 

 

29170

080900

 

 

 

40

29170 091598

 

SCHEMATIC WIRING DIAGRAM FMDA-3

 

 

 

L1

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK HEATER

 

CONTROL

 

 

 

 

LIMIT

 

 

 

 

 

 

 

 

 

 

SWITCH

 

THERMOSTAT

 

 

 

THERMOSTAT

TANK HEATER

 

 

 

WHI-16

 

 

 

BLK-16

BLK-16

 

 

BLK-16

 

BLK-16

 

 

BLK-16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

FAN

WHI

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

WHI

 

J4-1

WHI

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

VIO

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK INLET

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

WHI

 

J4-4

BLU

 

 

 

 

 

 

 

 

 

WHI/BLK

4

WHI/BLK

 

 

 

SOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

OVERFLOW SWITCH

BLU

 

 

 

WHI/GRN

 

WHI/GRN

 

240V : 24V AC

 

 

 

 

 

 

 

RED

 

RED

 

 

 

WHI

 

WHI

 

TRANSFORMER

 

 

C

 

 

 

 

 

 

 

 

 

 

 

BLK

 

BLK

WHI/BLK

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

N

 

WHI/BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/GRN

 

 

 

T

J3-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

R

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

O

 

WHI/RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

L

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P.

J3-5

WHI/GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C.

J2-1

BRN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

WHI

O

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

J2-5

WHI/YEL

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/RED

 

 

 

 

 

 

 

 

 

 

 

 

RINSE/PROGRAM/

 

 

 

 

 

WHI/BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

GRY

RUN SWITCH

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

RUN

GRN

 

 

 

J2-10

 

 

FLUORESCENT

 

 

 

 

 

 

 

 

 

PGM

 

 

 

 

BLK

BLK

 

I

D

INCREASE/

 

 

 

 

 

 

 

 

 

 

 

 

 

YEL

 

 

 

 

 

 

 

LAMP

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

N

E

DECREASE

 

 

 

RINSE

 

 

 

 

 

 

 

 

BALLAST

 

C

C

 

 

WHI/BRN

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

RUN

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

BRN/BLK

 

 

 

 

 

WHI/BRN

PGM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

RINSE

 

 

 

 

 

 

PROBE

 

 

 

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT DISPENSE

 

RIGHT WHIPPER

 

 

 

 

RIGHT HOPPER

 

 

 

 

 

WHI/VIO

SOL

WHI

 

WHI/VIO

M

 

WHI

 

 

WHI/BLU

 

RED

M

BLK

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CENTER DISPENSE

 

CENTER WHIPPER

 

 

 

 

CENTER HOPPER

 

 

 

 

 

 

ORN

SOL

WHI

 

ORN

M

 

WHI

 

 

WHI/ORN

 

RED

M

BLK

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEFT DISPENSE

 

LEFT WHIPPER

 

 

 

 

LEFT HOPPER

 

 

 

 

 

 

 

TAN

SOL

WHI

 

RED

M

 

WHI

 

 

WHI/RED

RED

M

BLK

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/VIO

 

 

RED1

COLD DRINK OPTION (LEFT ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

HOT/COLD SWITCH

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

RED

 

WHI/YEL

SOL

 

RED

JUMPER PLUG MUST BE

 

 

 

 

 

 

 

 

 

 

 

 

TAN

 

 

 

 

 

 

 

 

 

 

 

 

TAN

 

TAN

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USED WHEN COLD

 

 

 

 

 

 

 

 

 

 

WHI

 

WHI

 

 

 

 

 

RED

DRINK FEATURE NOT

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

INSTALLED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

WHI/YEL

1

WHI/BLU WHI/ORN GRN WHI/RED

4

BLU WHI

1WHI/VIO

ORN

WHI/BRN RED

4

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHASSIS

 

 

 

230 VOLTS A C - 2 WIRE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SINGLE PHASE, 50 HZ

GRY

1

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

BLU/BLK BLK/WHI ORN BLU/WHI

 

RED/BLK

RED/WHI

BLK RED

 

 

 

 

 

 

 

 

 

 

GRN/BLK

 

 

 

BLU WHI

 

 

 

 

 

28874.0001C

8/98

© 1998 BUNN-O-MATIC CORPORATION

 

WHI/BLK

 

 

 

 

 

 

 

 

DOOR

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

WHI

BLU

 

WHI

 

 

 

"RINSE" L.E.D.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

BLU

RED

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

STARTER

 

 

 

 

ORN

 

BLU/WHI

ORN

BLK/WHI

 

ORN

 

BLU/BLK

 

 

RED

BLK

 

 

 

 

BLK

 

RED

 

BLK

RED/WHI

BLK

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

LEFT DISPENSE SWITCH

CENTER DISPENSE SWITCH

 

RIGHT DISPENSE SWITCH

 

 

 

 

 

 

 

41

29170 080900