Page 1
JDF-2S
JDF-4S
Silver Series®
INSTALLATION & OPERATING GUIDE
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and
manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
44744.0000A 03/11 ©2011 Bunn-O-Matic Corporation
Page 2
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) All equipment other than as specified below: 2 years parts and 1 year labor.
2) Electronic circuit and/or control boards: parts and labor for 3 years.
3) Compressors on refrigeration equipment: 5 years parts and 1 year labor.
4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis:
parts and labor for 3 years or 30,000 pounds of coffee, whichever comes first.
These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by
it will be commercially free of defects in material and workmanship existing at the time of manufacture and
appearing within the applicable warranty period. This warranty does not apply to any equipment, component or
part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect,
alteration, improper installation or operation, improper maintenance or repair, damage or casualty. This warranty is
conditioned on the Buyer 1) giving 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; 2) if requested by
BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior
authorization from BUNN that the defective equipment is under warranty.
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.
If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its
exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts
and/or labor (during the applicable parts and labor warranty periods specified above) to repair the defective
components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall 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, AT BUNN’S
SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, 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.
392, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not Bitter, BrewWISE, BrewWIZARD, BUNN Espress, BUNN
Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic, BUNN, BUNN with the stylized red line, BUNNlink, Bunn-OMatic,
Bunn-O-Matic, BUNNserve, BUNNSERVE with the stylized wrench design, Cool Froth, DBC, Dr. Brew stylized Dr. design,
Dual, Easy Pour, EasyClear, EasyGard, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, iMIX, Infusion Series,
Intellisteam, My Café, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.com, Scale-Pro, Silver Series, Single, Smart Funnel, Smart
Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in Beverage Equipment Worldwide, ThermoFresh, A
Partner You Can Count On, Air Brew, Air Infusion, Beverage Bar Creator, Beverage Profit Calculator, Brew better, not bitter.,
BUNNSource, Coffee At Its Best, Cyclonic Heating System, Digital Brewer Control, Nothing Brews Like a BUNN, Pouring
Profits, Signature Series, Tea At Its Best, Phase Brew, The Horizontal Red Line, Titan, trifecta, Ultra, Velocity Brew are
either trademarks or registered trademarks of Bunn-O-Matic Corporation.
2
44744 051910
Page 3
AVERTISSEMENT
Pièces amovibles
Ne pas utiliser
l'appareil lorsque
le panneau est
enlevé.
Risk de choc électrique.
Debrancher le cordon
d'alimentation de
l'appareil avant de faire
l'entretien.
Moving Parts.
Do not operate
unit with this
panel removed.
Risk Of Electrical Shock.
Disconnect power before
servicing unit.
CHARGE
Type R134A, Amount 9 oz (255 gm)
Design Pressures: High 255 psi (15.5 bar)
Low 36 psi (2.5 bar)
CONTENTS
Warranty ........................................................................................................................ 2
User Notices
Initial Set-Up & Electrical Requirements
Plumbing Requirements
CE Requirements
Door Cover Installation
Plumbing Hookup
Initial Fill
Loading
Priming
Operating Controls
Dispenser Use
Portion Control Option
Cleaning
Adjustments & Optional Settings
Function Lists
Troubleshooting
Coolant Diagram
Schematic Wiring Diagram
Quick Setup Guide
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.......................................................................................................... 25
.......................................................................................... 26
....................................................................................................... 28
USER NOTICES
Carefully read and follow all notices on the equipment and in this manual. They were written for your protec-
tion. All notices are to be kept in good condition. Replace any unreadable or damaged labels.
As directed in the International Plumbing Code of the
International Code Council and the Food Code
Manual of the Food and Drug Administration (FDA),
this equipment must be installed with adequate
backflow prevention to comply with federal, state
and local codes. For models installed outside the
U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.
00656.0001
WARNING
• DO NOT OVERLOAD CIRCUIT.
• ALWAYS ELECTRICALLY GROUND THE CHASSIS.
• DO NOT DEFORM PLUG OR CORD.
• FOLLOW NATIONAL AND LOCAL
ELECTRICAL CODES.
• KEEP COMBUSTIBLES AWAY.
FAILURE TO COMPLY RISKS EQUIPMENT
DAMAGE, FIRE OR SHOCK HAZARD.
READ THE ENTIRE OPERATING MANUAL INCLUDING
THE LIMIT OF WARRANTY AND LIABILITY BEFORE
BUYING OR USING THIS PRODUCT.
THIS EQUIPMENT IS ENERGIZED AT ALL TIMES UNLESS
ELECTRICALLY DISCONNECTED.
00986.7000A 10/07 ©2007 Bunn-O-Matic Corporation
AVERTISSEMENT
• NE PAS SURCHARGER LE CIRCUIT.
• TOUJOURS METTRE LE BOITIER À LA MASSE.
• NE PAS DÉFORMER LA FICHE OU LE CORDON.
• SE CONFORMER AUX CODES NATIONAL OU LOCAL
D'ÉLECTRICITÉ.
• GARDER LES PRODUITS COMBUSTIBLES À DISTANCE.
TOUT MANQUEMENT À SE CONFORMER À CES DIRECTIVES PEUT
ENTRAINER DES DOMMAGES À L'ÉQUIPMENT OU PRODUIRE DES
DANGERS D'INCENDIE OU D'ÉLECTROCUTION.
VEUILLEZ LIRE LE MANUEL DE FONCTIONEMENT
EN ENTIER, Y COMPRIS LES LIMITES DE GARANTIES ET
L' ÉQUIPEMENT EST TOUJOURS SOUS TENSION
00986.7000
RESPONSABILITÉS,AVANT D’ACHETER
OU D'UTILISER LE PRÉSENT PRODUIT.
LORSQU'IL N'EST PAS DÉBRANCHÉ.
12559.0003
27442.7000
CHARGE
Type R134A, Amount 10 oz (283 gm)
Design Pressures:
High 335 psi (23 bar) (2.31 MPa)
Low 88 psi (6 bar) (0.61 MPa)
33461.0000
JDF-4S
33461.0001
JDF-2S
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INITIAL SET-UP
CAUTION: The dispenser is very heavy! Use care when lifting or moving it. Use at least two people to lift or move the
dispenser. Place dispenser on a sturdy counter or shelf able to support at least 150 lbs. (68 kg). This dispenser is designed
for indoor use only.
Set the dispenser on the counter where it will be used. This dispenser requires a minimum of 4 inches (102 mm) of air
clearance at the rear and 8 inches (203 mm) of air clearance above the dispenser. Minimal clearance is required between
the dispenser sides and the wall or another appliance. For optimum performance, do not let warm air from surrounding
machines blow on the dispenser. Leave some space so the dispenser can be moved for cleaning.
CE REQUIREMENTS
• This appliance must be installed in locations where it can be overseen by trained personnel.
• For proper operation, this appliance must be installed where the temperature is between 5°C to 35°C.
• Appliance shall not be tilted more than 10° for safe operation.
• An electrician must provide electrical service as specified in conformance with all local and national codes.
• This appliance must not be cleaned by water jet.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given instructions concerning use of this appliance by
a person responsible for its safety.
• Children should be supervised to ensure they do not play with the appliance.
• If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personnel with a special
cord available from the manufacturer or its authorized service personnel in order to avoid a hazard.
• Machine must not be immersed for cleaning.
ELECTRICAL REQUIREMENTS
CAUTION: The dispenser must be disconnected from the power source until specified in Electrical Hook-Up.
The 120V rated dispensers have an attached cord set and require a 2-wire, grounded, individual branch circuit rated
120 volts ac, 15 amp, single phase, 60Hz. The mating connector must be a NEMA 5-15R.
The 230V rated dispenser has an attached cord set and requires an attachment plug cap rated at least 230 volts ac, 15
amp. The attachment plug cap must meet with applicable national/local electrical codes.
Refer to the data plate for exact electrical requirements.
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. Confirm that the refrigeration switch near the main control board is in the OFF 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.
PLUMBING REQUIREMENTS
This dispenser must be connected to a COLD WATER system with operating pressure between 20 and 100 psi (138
and 690 kPa). This water source must be capable of producing a minimum flow rate of 3 fluid ounces (88.7 milliliters) per
second. A shut off valve should be installed in the line before the dispenser. Install a regulator in the line when pressure
is greater than 100 psi (690 kPa) to reduce it to 50 psi (345 kPa). The regulator is also necessary if the water source has
pressure fluxuations. The main water inlet is a 3/8” (9.52 mm) MFL connection.
NOTE- At least 18 inches (457 mm) of an FDA approved flexible beverage tubing, such as reinforced braided polyethylene,
before the dispenser will facilitate movement to clean the countertop. It can be purchased direct from BUNN-O-MATIC (part
number 34325.10_ _ [see Illustrated Parts Catalog for complete part number.]) BUNN-O-MATIC does not recommend the
use of saddle valves to install the dispenser. The size and shape of the hole(s) made in the supply line(s) by saddle valves
may restrict water flow.
As directed in the International Plumbing Code of the International Code Council and the Food Code Manual of
the Food and Drug Administration (FDA), this equipment must be installed with adequate backflow prevention
to comply with federal, state and local codes. For models installed outside the U.S.A., you must comply with
the applicable Plumbing /Sanitation Code for your area.
4
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Page 5
DOOR COVER INSTALLATION
1. Install door cover by first plugging the door harness connector into the machine harness connector located
at the bottom of the machine door.
JDF-2S
P3577
2. On Portion Control models, connect membrane
switches to Door Circuit Board.
JDF-4S Shown
3. Install door cover
JDF-2S & JDF-4S
JDF-4S
P3577
P3578
4. Secure the door cover using 5 screws provided.
JDF-2S
P3579
JDF-4S
5
P3840
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PLUMBING HOOKUP
The plumbing connection is located on the rear of the dispenser. A 3/8" (9.52 mm) male flare adapter fitting
is supplied, installed on the rear of the dispenser.
NOTE - Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed
and maintained in accordance with federal, state and local codes.
P3841
FIG 1 Plumbing Connections - JDF-2S
P3580-1
FIG 2 Plumbing Connections - JDF-4S
INITIAL FILL
CAUTION: The dispenser must be disconnected from the power source throughout the initial fill except when
specified in the instructions.
1. Remove drip tray assembly and splash panel from the dispenser. Replace the drip tray.
2. Connect the water source to the back of the dispenser.
3. Pull the fill tube from the dispenser, remove the plug and connect it to the dispense nozzle.
4. Set the Program Switch (near main control board) to the ON position. (On older models without program
switch, set the Dispense Lockout Switch to the OFF position)
5. Connect dispenser to the power source. Press and hold the dispense button for the dispense station that the
tube is connected to for 10 seconds, until you hear the water valve turn on. (For Portion Control machines,
press and hold the PLUS/STOP switch)
6. Monitor the water bath fill level until water starts to trickle from the overflow tube. Then press the dispense
button again to stop the fill process.
NOTE: The fill timer may time out before filling is complete. Press and hold the dispense button for 10 seconds
to start again if needed.
FIG 3 Initial Fill Hose - JDF-2S
P3581-1
P3846
FIG 4 Initial Fill Hose - JDF-4S
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INITIAL FILL (Continued)
7. Turn ON the refrigeration switch near the main control board. This will start the water bath pump circulation.
8. Check water level in the overflow tube and top off the tank if necessary (Step 5).
9. Disconnect the fill tube and allow excess water to drain into the drip tray. Replace the plug in the end of the
fill tube and store back into the dispenser.
10. Set the Program Switch (near main control board) to the OFF position. (On older models without program
switch, set the Dispense Lockout Switch to the ON position)
11. Replace the splash panel and drip tray.
12. It will take several hours to create the ice bank required for full dispenser performance. During this time, some
further trickling from the water bath is expected due to expansion caused by ice bank formation. While the
refrigeration system is creating the ice bank, the dispenser may be readied for use as described in Loading,
Priming and Adjustment.
FIG 5 Initial Fill Connection - JDF-2S
P3582
FIG 6 Initial Fill Connection - JDF-4S
P3842
LOADING
Frozen Concentrates
1. Thaw the frozen concentrate in a refrigerated 35-40 degrees F (1.6-4.4 degrees C) environment for 36 to 48
hours before use.
2. Thoroughly mix the thawed concentrate by vigorously shaking the product container.
3. Open the dispenser door.
4. Prior to placing the product container in the dispenser, make sure that the o-ring on the container adapter is
lubricated. This will ease removal of the container when it becomes necessary.
5. Place the product container in the desired position and press it firmly into the bottle adapter opening.
6. Open the vent hole in the product container.
Note: Concentrate in the container must be completely thawed and be within the temperature range of 35-40
degrees F (1.6-4.4 degrees C.) Product outside of this temperature range, especially below, will produce an “out
of brix” drink.
Ambient Concentrates (Optional)
1. Install an Ambient Concentrate Conversion Kit (BUNN-O-MATIC part number 33699.0002) per the instructions provided in the kit.
2. Attach the concentrate product hose to the appropriate concentrate line located at the rear of the dispenser.
3. Attach the other end of the product hose to the product container through an appropriate fitting.
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PRIMING
1. Open the dispenser door
2. Load concentrate per instructions in section titled Loading.
3. Close the dispenser door.
4. Place a large container under the appropriate dispense nozzle.
Press and hold the “Product Dispense Switch” Fig 5, until concentrate dispenses from the dispense nozzle.
Note: This may take several seconds, depending on the installation and set pump speed.
OPERATING CONTROLS
Refrigeration Switch
The refrigeration switch is located on the Electrical Panel of the dispenser near the Circuit Board. This switch
controls power to the water bath pump and relay contacts for the compressor and condenser fan motor.
FIG 7 Refrigeration Switch - JDF-2S
FIG 8 Refrigeration Switch - JDF-4S
Product Dispense Switch (Mechanical Switch Machines)
Pressing and holding switch will initiate product flow from the respective nozzle; releasing the switch will stop
the flow.
P3844
FIG 9 Product Dispense Switches - JDF-2S
P3583
FIG 10 Product Dispense Switches - JDF-4S
8
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OPERATING CONTROLS (Continued)
Product Dispense Switch (Membrane Switch Machines)
A. Product Dispense Switch
Momentarily pressing and releasing one of the switches will initiate a timed dispense. Each station has three
different timed dispenses which are preset at the factory. Refer to DISPENSER USE section for preset volumes
and adjustment procedures.
B. Plus/Stop Switch
This switch can be used to “top-off” a beverage. Pressing and holding switch will initiate product flow from
the respective nozzle; releasing the switch will stop the flow. Momentarily pressing this switch during a timed
dispense will stop the flow.
C. Chilled Water Dispense Switch (Optional for JDF-4S only)
Pressing and holding switch will initiate chilled water flow from the nozzle; releasing the switch will stop flow.
FIG 11 Product Dispense Switches - JDF-2S
Dispense Lockout Switch (JDF-2S shown)
This switch is located at the bottom front of the dispenser just behind the drip tray. It is used to turn ON
and OFF the Dispensing function. It is also used for
some programming and fill procedures.
FIG 12 Product Dispense Switches - JDF-4S
FIG 13 Dispense Lockout Switch
Program Switch (JDF-2S shown)
This switch is located near the main control board next
to the refrigeration switch.
FIG 14 Program Switch
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OPERATING CONTROLS (Continued)
DISPENSER USE
Press and Hold Dispensing:
1. Place a cup on the drip tray beneath the desired dispensing nozzle.
2. Press and hold the “Product Dispense” switch until the beverage reaches the desired level, then release.
Portion Control Option (Mechanical Switch Machines)
The dispenser is also equipped with a portion control option. The following steps will guide you through the set
up process for this option. Portion control can be set on one or all dispense heads as needed.
1. Unplug dispenser from power source.
2. Set the Program Switch (near main control board) to the ON position. (On older models without program
switch, set the Dispense Lockout Switch to the OFF position)
3. Remove drip tray and splash panel from the front of the machine then replace the drip tray.
4. Press and hold the left most (Station 1) dispense switch while plugging the dispenser into the power source.
Continue holding dispense switch(s) until all 4 temperature LED’s, Figs. 12 and 13 on the circuit board start
flashing slowly (this takes about 5 seconds). Release dispense switch(s).
5. Press and release any dispense switch 6 times to enter the portion control set up mode. This will cause the
4 temperature LED’s to flash rapidly.
6. Place a container under the desired dispense nozzle to measure the portion size.
7. Press and hold the desired dispense switch to dispense product until the desired amount of product is
achieved. (Maximum dispense time is 25 seconds). Repeat this on all dispense heads as desired.
8. Set the Program Switch (near main control board) to the OFF position. (On older models without program
switch, set the Dispense Lockout Switch to the ON position)
9. Place a container under the dispense nozzle(s) and press the dispense button to confirm that the portion size
is set correctly. Repeat steps 1-8 if any changes are needed.
10. Replace splash panel.
Note: The portion control dispense can be cancelled during a dispense by pressing the dispense button again.
Note: If a portion size is not set for a dispense head while in the portion control set up mode, that dispense head
will remain a push and hold dispense head.
Push and Hold Membrane Switch Machines
1. To set single portion sizes on a push and hold membrane type dispense switch, follow steps 1 - 10 above.
Portion Control Option (Membrane Switch Machines)
Portion sizes are preset but can be adjusted by following these steps below.
1. Set the Program Switch (near main control board) to the ON position. (On older models without program
switch, set the Dispense Lockout Switch to the OFF position)
2. Press and hold the large and medium buttons on the left most (Station #1) dispense station until you hear
the machine "beep".
3. Place a measuring container under the station to be adjusted, then press and hold the apprpriate dispense
switch until the desired amount is dispensed. The machine will record the amount of time that the button is
pressed continously. If the button is released too soon, simply empty the container and start over.
4. Repeat step 3 for all stations as desired.
5. Turn the program switch to the OFF position.
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OPERATING CONTROLS (Continued)
Procedure to return all dispense heads back to Push and Hold mode (Mechanical Switch Machines):
1. Unplug dispenser from power source.
2. Place Program switch in the ON position.
3. Remove drip tray and splash panel from the front of the machine then replace the drip tray.
4. For the JDF-2S, press and hold either dispense switch while plugging the dispenser into the power source.
For the JDF-4S, press and hold two left dispense switches while plugging the dispenser into the power
source. Continue holding dispense switch(s) until all 4 temperature LED’s on the circuit board start flashing
slowly (this takes about 5 seconds). Release dispense switch(s).
5. Press and release any dispense switch three times.
6. Place Program switch back into the OFF position.
7. Replace splash panel and drip tray.
8. Place a container under each dispense nozzle and press dispense buttons to confirm machine is operating
in push and hold mode.
FIG 15 Temperature LEDs JDF-2S
(Early Models)
FIG 15A Temperature LEDs JDF-2S
(Late Models)
P3585
P3845
FIG 16 Temperature LEDs JDF-4S
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CLEANING & PREVENTIVE MAINTENANCE
Daily: Rinse Procedure
Tools required: 32 oz. (946 ml) minimum empty container
1. Open dispenser door. Lift up on product containers and remove them from the machine.
2. Close the door, place an empty container under the dispensing nozzle.
3. Dispense from each station until clear water flows from the dispense nozzle.
4. Open dispenser door and reconnect all product containers.
Daily: Parts Washing
1. Remove and wash the dispense nozzle(s), mixing element(s), drip tray and drip tray cover in a mild detergent solution.
Rinse thoroughly.
2. Wipe splash panel, areas around dispense nozzle(s), and refrigerated compartment with a clean, damp cloth.
Sanitize Process for Semi-Automatic and Manual
Tools required: 1 empty 5 gallon (18.9 L) bucket, 2 packets of Kay 5 sanitizer, and clean, empty concentrate container.
1. Remove all concentrate from the dispenser and store in a separate refrigerated compartment.
2. Fill clean empty concentrate container(s) with approximately 32 oz. (946 ml) of hot tap water (approximately 140 Deg.
F (60 Deg. C). Load the containers of hot water into the dispenser (just like concentrate).
3. Place an empty container under the dispense nozzles.
4. Press and hold the dispense button at each station until the stream out of the nozzles runs clear (about 30 seconds).
Note: the dispenser will not allow all stations to run at the same time.
5. Once this is completed, remove the container(s) and empty.
6. Remove each dispense nozzle and mixing element and run under hot tap water to remove excess pulp.
7. Prepare 2.5 gal. (9.46 L) of sanitizing solution by dissolving 1 packet of Kay 5 sanitizer into 2.5 gal. (9.46 L) of 120
Deg F (48.9 Deg. C) water to ensure 100 ppm of available chlorine.
8. Place nozzle(s) and mixing element(s) in a separate 1-quart container of sanitizing solutions and mix thoroughly. Allow
the parts to soak for 2 minutes.
9. Clean the dispense nozzle receptacle(s) (dispense valves) with the sanitizing solution and a soft bristle brush.
10. Clean the concentrate bottle’s inlet adapter(s) using the sanitizing solution and a soft bristle brush.
11. Replace the mixing element(s) and nozzle(s).
12. Fill approximately 128 ounces (3.8 L) of clean sanitizing solution into clean, empty concentrate container(s). Do not
use the sanitizing solution used in step 10. Load the container(s) into the dispenser.
13. Place the empty 5 gallon bucket under the dispense nozzles.
For Semi-Automatic Sanitizing Prior to S/N JDF0016500:
14. a. For the JDF-2S, press and hold both dispense buttons for about 10 seconds to initiate the sanitize cycle.
b. For the JDF-4S, press and hold three left most dispense buttons (Stations 1, 2 and 3) for about 10 seconds to initiate
the sanitize cycle. The cycle will start with only one of the dispense stations dispensing. Note: The cycle will consist
of a 1 minute dispense time (alternating) on each station, then 5 minutes of soak time, then a 2 minute dispense time
(alternating) on each station.
For Semi-Automatic Sanitizing Effective S/N JDF0016500 and up:
14. Turn the Program Switch in the bottom of the machine to the "ON" position.
a. For the JDF-2S, press the left dispense button 2 times, then press the right dispense button 2 times.
b. For the JDF-4S, press the left most (station 1) dispense button 2 times, then the left center (station 2) button 2
times. The cycle will start with only one of the dispense stations dispensing. Note: The cycle will consist of a 1 minute
dispense time (alternating) on each station, then 5 minutes of soak time, then a 2 minute dispense time (alternating)
on each station.
For Manual Sanitizing:
14. a. Dispense each station for 1 minute.
b. Allow to soak for 5 minutes.
c. Dispense each station for 2 minutes.
NOTE: On Portion Control models, use the plus/stop switches.
15. When the above cycle is complete, Remove the sanitizing solution and replace with concentrate.
16. At each station, press and hold the dispense switch until product appears. Then dispense one 12 ounce (354.9 ml)
glass of finished product and discard.
17. Wipe internal and external surfaces with a clean, damp cloth.
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CLEANING (cont)
Monthly: Clean Condenser Coils
1. Use a soft bristle brush to clean the build up of dirt in the condenser.
NOTE: Some models include a removable filter that can be cleaned in warm soapy water.
Annually: Replace Pump Tubing
39690.0000 Tube Kit JDF-2S & JDF-4S
39688.0000 Tube Assembly
1. Open dispenser door.
2. Remove all product containers and place them in a refrigerated (35-40 degrees F [1.6-4.4 degrees C]) envi-
ronment. Disconnect all connections to ambient products from the bottle adapter.
3. Rinse all dispense stations using steps outlined in “DAILY RINSE PROCEDURE”.
4. Disconnect dispenser from power source.
5. Remove the dispense platform cover.
6. Disconnect the dispense platform water line(s) from the supply line inside the refrigerated cabinet and dis-
connect the wiring connection(s) from the cabinet receptacle(s).
7. Remove the mounting screw(s) securing the dispense platform(s) to the cabinet .
8. Pull the dispense platform(s) completely out of the cabinet and place it on a flat work surface.
9. Close the dispenser door.
10. Remove the 4 screws securing the pump head.
11. Gently pull the pump head apart.
12. Gently pull the pump tube from around the pump’s rotor.
13. Release the clamps securing the old pump tubing to the plastic elbows.
14. Pull the plastic elbows from the old pump tubing, and discard the old pump tubing.
15. Insert the plastic elbows into the new pump tubing and secure it with the clamps.
16. Gently wrap the new pump tubing around the pump’s rotor.
17. Reassemble the pump housing onto the platform assembly.
18. Repeat steps 10 through 17 for the remaining pump(s).
19. Replace the dispense platform(s) into the refrigerated cabinet, making sure to reconnect all electrical and
water connections.
20. Replace the dispense platform cover.
21. Turn power on to dispenser.
22 Install containers of rinse water, run each station and check for leaks. Repair leaks as necessary.
23. Replace product shelf and product containers. Reconnect any connections to ambient product containers.
24. Prime the pumps as described in “PRIMING” in the Initial Fill Section.
13
44744 032811
Page 14
ADJUSTMENT & OPTIONAL SETTINGS
Water Flow Testing and Adjustment
1. Place a graduated measuring cup or the large chamber of the empty
brixing cup (BUNN-O-MATIC part number 33095.0000) under the appropriate dispense nozzle. Place the Program switch in the ON position.
2. Press and release the desired “Product Dispense Switch” three times.
(On Portion Control models, use the plus/stop switches)
3. The selected position will dispense water (no concentrate) only for 3
seconds.
4. Measure the water dispensed.
5. Adjust the water flow rate Fig 17, (clockwise to increase flow rate;
counterclockwise to decrease flow rate) to the corresponding product
mix ratio as follows:
FIG 17 Adjusting Water Flow
Using 1/4" allen wrench
Mix Ratio Adjust water flow rate to: Product Brix %
(water + concentrate)
2+1 *3.75 fl. oz (111 ml) Prune Juice 16.0%
per 3-second test Other *
Orange Juice 11.8%
4+1 Pineapple Juice 12.8%
Cranberry Fruit Cocktail 14.0%
*4.0 fl. oz (118 ml) Grapefruit Juice 10.6%
per 3-second test Lemonade
5+1 Apple Juice 12.0%
Fruit Punch
Grape Juice 13.0%
3+1 through 7+1 Other *
Above 7+1 *4.0 fl. oz (118 ml) Other *
per 3-second test
High Viscosity Juice 2.25 - 3.0 fl. oz (66.5 - 89 ml) As Required per 3-second test
*Maximum flow rate may be less depending on the water pressure supply at each location.
Note: Information for specific products listed in this table is to be used for reference only. Consult the product
label for exact mix ratio and/or brix %. See product label for target brix %.
P3586
6. Repeat steps 1 through 5 as necessary until the correct water flow rate is achieved.
7. Repeat steps 1 through 5 for the remaining dispense positions.
8. Place the Program switch back into the OFF position.
Pump Speed Adjustment
1. Disconnect the dispenser from the power source.
2. Remove the drip tray.
3. Remove the two screws securing the splash panel and remove the splash panel
4. Locate the adjustment knobs on the circuit board.
5. Turn the adjustment knobs clockwise to increase speed and counterclockwise to decrease speed.
6. The knob positions directly correspond to dispense station locations.
NOTE: Some 2S models have 4 adjustment knobs on the circuit board. For these models use the two left most
knobs to make pump speed adjustments. Left most being station #1 (left side dispense) and left center being
station #2 (right side dispense).
7. Reinstall the splash panel and drip tray and reconnect the dispenser to the power source.
14
44744 032811
Page 15
ADJUSTMENT & OPTIONAL SETTINGS (cont)
Total Dispense Ratio Set Up Procedure
1. Adjust water flow as described in Water Flow Testing and Adjustment. Record water output setting for later
reference on each dispense head.
2. Place the Program switch in the ON position.
3. Place a measuring container under the dispense nozzle, press and release the DISPENSE button 6 times.
4. Record the total ounces dispensed.
5. Refer to the Brix/Ratio chart below to confirm proper total dispensed amount for ratio desired and water
output previously recorded.
6. To increase or decrease the product output, refer to Pump Speed Adjustment section.
7. Place the Program switch back into the OFF position.
3 second
Ratio Target
water dispense
(oz)
2:1 3:1 4:1 5:1 6:1 7:1 8:1 9:1 10:1 11:1 12:1 13:1 14:1 15:1
1.5 2.25 2.00 1.88 1.80 1.75 1.71 1.69 1.67 1.65 1.64 1.63 1.62 1.61 1.60
1.75 2.63 2.33 2.19 2.10 2.04 2.00 1.97 1.94 1.93 1.91 1.89 1.88 1.88 1.87
2.0 3.00 2.67 2.50 2.40 2.33 2.29 2.25 2.22 2.20 2.18 2.17 2.15 2.14 2.13
2.25 3.38 3.00 2.81 2.70 2.63 2.57 2.53 2.50 2.48 2.45 2.44 2.42 2.41 2.40
2.5 3.75 3.33 3.13 3.00 2.92 2.86 2.81 2.78 2.75 2.73 2.71 2.69 2.68 2.67
2.75 4.13 3.67 3.44 3.30 3.21 3.14 3.09 3.06 3.03 3.00 2.98 2.96 2.95 2.93
3.0 4.50 4.00 3.75 3.60 3.50 3.43 3.38 3.33 3.30 3.27 3.25 3.23 3.21 3.20
3.25 4.88 4.33 4.06 3.90 3.79 3.71 3.66 3.61 3.58 3.55 3.52 3.50 3.48 3.47
3.5 5.25 4.67 4.38 4.20 4.08 4.00 3.94 3.89 3.85 3.82 3.79 3.77 3.75 3.73
3.75 5.63 5.00 4.69 4.50 4.38 4.29 4.22 4.17 4.13 4.09 4.06 4.04 4.02 4.00
4.0 6.00 5.33 5.00 4.80 4.67 4.57 4.50 4.44 4.40 4.36 4.33 4.31 4.29 4.27
4.25 6.38 5.67 5.31 5.10 4.96 4.86 4.78 4.72 4.68 4.64 4.60 4.58 4.55 4.53
4.5 6.75 6.00 5.63 5.40 5.25 5.14 5.06 5.00 4.95 4.91 4.88 4.85 4.82 4.80
4.75 7.13 6.33 5.94 5.70 5.54 5.43 5.34 5.28 5.23 5.18 5.15 5.12 5.09 5.07
5.0 7.5 6.67 6.25 6.00 5.83 5.71 5.63 5.56 5.50 5.45 5.42 5.38 5.36 5.33
Dispensed product (oz)
Temperature Compensated Refractometer Method
1. Adjust the water flow as described in Water Flow Testing and Adjustment.
2. Place an empty container under the appropriate dispense nozzle.
3. Press and hold the “Product Dispense Switch” Figs 9 & 10, until water and concentrate begin flowing freely
from the dispense nozzle.
4. Discard the product caught previously and place the empty container back under the dispense nozzle.
5. Press and hold the “Product Dispense Switch” until the cup is filled.
6. Stir the contents of the cup, and use the refractometer (according to the manufacturer’s instructions) to check
the brix %.
7. Adjust the pump speed (down to decrease the brix %; up to increase the brix %) to achieve the correct brix
% as described in Pump Speed Adjustment.
15
44744 032811
Page 16
ADJUSTMENT & OPTIONAL SETTINGS (cont)
Dispenser Lockout
Dispense functions of the dispenser can be turned-off to prevent unauthorized use of the dispenser, while keeping
the refrigeration system running.
1. Locate the Dispense Lockout switch at the bottom front of the dispenser behind the drip tray.
2. Place the switch in the OFF position to prevent dispensing.
3. Place the switch in the ON position to allow dispensing.
NOTE: This switch will also operate the door lights on models equipped with this feature.
16
44744 032811
Page 17
FUNCTION LIST
Circuit Board LED Indicators - JDF-2S (Early Models)
LED # LED Color Illuminates:
1 Green When the compressor should be ON.
2 Cabinet Red When the cabinet temperature is above 50 degrees F.
Flashes slowly when cabinet temperature exceeds 50 degrees F for 4
hours. Dispense functions are locked out under this condition. Power
down the dispenser to reset.
Flashes rapidly if dispense is attempted in lockout condition.
Open cabinet thermistor circuit will flash #2 and #3 LED’s 1 time every 3
seconds.
Shorted cabinet thermistor will turn #2 and #3 LED’s on steady.
3 Cabinet Green When cabinet temperature is below 50 degrees F.
4 Bath Red When bath temperature is above 34 degrees F.
Flashes slowly when compressor is in a 6 minute delay period.
Open bath thermistor circuit will flash #4 and #5 LED’s 1 time every 3
seconds. The compressor will not run under this condition.
Shorted bath thermistor circuit will flash #4 and #5 LED’s 2 times every 3
seconds. The compressor will not run under this condition.
5 Bath Green When bath temperature is below 34 degrees F.
1
2
4
FIG 18 JDF-2S
3
5
P3585
(Early Models)
17
44744 032811
Page 18
FUNCTION LIST (Continued)
Circuit Board LED Indicators - JDF-4S and Late Model JDF-2S
LED # LED Color Illuminates:
1 Bath Red When bath temperature is above 34 degrees F.
Flashes slowly when compressor is in a 6 minute delay period.
Open bath thermistor circuit will flash #1 and #2 LED’s 1 time every 3
seconds. The compressor will not run under this condition.
Shorted bath thermistor circuit will flash #1 and #2 LED’s 2 times every 3
seconds. The compressor will not run under this condition.
2 Bath Green When bath temperature is below 34 degrees F.
3 Green When the compressor should be ON.
4 Cabinet Red When the cabinet temperature is above 50 degrees F.
Flashes slowly when cabinet temperature exceeds 50 degrees F for 4
hours. Dispense functions are locked out under this condition. Power
down the dispenser to reset.
Flashes rapidly if dispense is attempted in lockout condition.
Open cabinet thermistor circuit will flash #4 and #5 LED’s 1 time every 3
seconds.
Shorted cabinet thermistor will turn #4 and #5 LED’s on steady.
5 Cabinet Green When cabinet temperature is below 50 degrees F.
4
5
FIG 19 JDF-4S
1
2
3
P3845
18
44744 032811
Page 19
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 120-240 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.
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.
PROBLEM
Cold Water Circulation
Dispense stations not working.
Note: Cooling failure or excessive
cabinet temperatures for more
than 4 hours will result in dispense
lockout or no dispense.
Note: Reset fault/timer by unplugging unit.
PROBABLE CAUSE
1. Cabinet cooling fan.
2. Bath recirculation pump.
3. Restricted water flow to cabinet
water coil and bath.
REMEDY
Replace fan (24vdc).
Note: Fan receives power when the
dispenser is powered.
A) If not running, check refrigeration switch and wiring for proper
continuity.
B) Check for 120V or 230V AC at
pump. Replace pump.
Check for kinked hose.
19
44744 032811
Page 20
TROUBLESHOOTING (cont.)
PROBLEM
Refrigeration
Dispense stations not working.
Note: Cooling failure or excessive
bath and cabinet temperatures for
more than 4 hours will result in
dispense lockout or no dispense.
PROBABLE CAUSE
1. Compressor ON/OFF switch.
2. Dirty condenser filter or fins.
3. Condenser fan not running.
4. Compressor relay not activating.
REMEDY
Check for "ON" position or no continuity - replace switch.
Clean filter and fins or replace condenser filter. (Filter not supplied on
some machines).
A) Check for 120V or 230V AC. Replace fan motor or check fan blades
for obstructions.
B) Check compressor LED on circuit
board. If ON, relay coil should have
power (120 or 230 VAC).
Check compressor relay coil for 120
or 230vac.
NOTE: Always check power with
coil attached. If compressor LED
is ON and no 120 or 230vac - replace board. If yes, 120 or 230vac
- replace relay.
Note: Relay contacts are normally
open.
Dispenser Locked Out
Dispense stations not working.
Cooling system failure.
5. Compressor not running.
6. Compressor running and not
cooling.
1. Check Dispense Lockout switch.
1. Refrigeration or cold water recirculation system.
Check compressor thermal overload
(N/C). If open check for dirty condenser filter or adequate ventilation
and space around machine.
Check refrigeration system for leaks
and proper charge.
(A) Set switch to ON position.
(B) Check switch and harness for
proper continuity.
Check all previous items that pretain to refrigeration or cold water
recirculation
20
44744 032811
Page 21
TROUBLESHOOTING (cont.)
PROBLEM
Dispense station not working
All stations dispense concentrate
only
PROBABLE CAUSE
1. Dispense Lockout switch set to
OFF position.
2. Dispense switch failed
Main water supply
Frozen bath
Inlet water valve failed
REMEDY
Place switch in ON position.
Check switch and harness for proper
continuity.
Check for ON position.
A) Compressor relay/contacts
shorted - replace relay.
B) Recirculating pump - replace or
check for kinked flex line.
A) Check for 120V or 230V power
when dispensing. If yes, replace
valve. If no, check harness for
proper continuity. Then replace
circuit board if needed.
21
44744 032811
Page 22
TROUBLESHOOTING (cont.)
PROBLEM
Dispense station
concentrate only
Dispense station
water only
PROBABLE CAUSE
Water solenoid
Concentrate out
Product pump not pumping
Pump not turning
REMEDY
Replace solenoid (24vdc) or check
wire connection between water
valve and main control board.
Replace refill concentrate container
or BIB
Check for proper counterclockwise
rotation of pump rollers. If counterclockwise, replace pump tubing.
If clockwise, wire connection to
pump is reversed. Switch wires on
terminals.
A) Check speed setting on circuit
board and increase speed (turn
clockwise)
B) Check for d.c. power to pump
motor. If yes, replace motor assy. If
no, check harness for proper continuity. Then replace circuit board
if needed.
22
44744 032811
Page 23
TROUBLESHOOTING (cont.)
PROBLEM
Water leak filling drip tray or around
dispense deck area
Water leaking beneath machine
PROBABLE CAUSE
1. Initial fill/setup
2. Dispense deck
3. Water pressure greater than
100psi
1. Bath tank overflow.
REMEDY
Some expansion normal. May fill
drip tray during initial ice block
formation
Inspect or replace fittings clamps,
o-rings, solenoids and quick disconnect fittings.
NOTE: Dispense deck area slopes
to drain tube that leads to the drip
tray.
Install water pressure regulator and
reduce to 50 psi.
A) Check all internal water connections.
B) Check internal plumbing connections.
Erratic spray during dispense
Dispense nozzle dripping water
2. Condensation from cabinet cooling coil.
Dispense nozzle mixer missing or
broken
Dispense solenoid.
Check for routing of condensation
tube to water bath.
Replace mixer.
Replace dispense deck solenoid.
23
44744 032811
Page 24
TROUBLESHOOTING (cont.)
PROBLEM
Unit is not working
Difficulty brixing and/or weak beverage
PROBABLE CAUSE
1. Step-down transformer.
2. Main control board.
1. Product viscosity or too cold.
2. Low water pressure.
3. High water pressure.
4. Dispense valve adjustment setting.
REMEDY
Check for 120/24 or 230/24 vac. If no
24vac reading, replace step-down
transformer.
If 24 vac present and no LED’s lit,
replace control board..
Thorough thaw of product before
use (35° - 40°)
Maintain 20 psi or higher and a
minimum flow rate of 3 fl oz/sec.
Over 100 psi, install a pressure
regulator and set to 50 psi.
A) Perform 3 second water dispense
test. Factory setting is 1.0 oz/sec.
Acceptable water flow rate is .-0.8
to 1.5 oz/sec depending on the mix
ratio (4+1).
Difficulty brixing and/or weak beverage
Difficulty brixing bag-in-box
5. Brix ratio.
1. Pump tubing.
2. Use of portable water pump.
Vacuum leak
B) Adjust water to proper mix ratio.
Once water is set, adjust motor
speed to achieve brix %.
Check for proper brix ratio per product using Total Dispense method
and or refractometer method.
Inspect, clean, or replace tubing
and pump rotor/rollers for ease of
rotation.
A) Follow plumbing requirements
for pressure and flow rate.
B) Source another portable pump
or water supply that meets requirements.
Inspect all lines and connections
from bag-in-box connector to bottle
adapter assembly.
24
44744 032811
Page 25
CONDENSER
SUCTION
ACCUMULATOR
COMPRESSOR
EVAPORATOR
PROCESS TUBE
FILTER
DRYER
COOLANT SCHEMATIC DIAGRAM
25
44744 032811
Page 26
COMPRESSOR ASSY
BLU/BLK
LIMIT
THERM.
3
GRN/YEL-16
4
LEFT
DISPENSE
VIO
LEFT
DISPENSE
WHI/VIO
YEL YEL
SOL SOL
Models with Membrane Switches
J2-1
J2-5
STATIC
SHIELD
LARGE
SMALL
MEDIUM
STOP/PLUS
DISPENSE
STATION
#1
PUSH BUTTON OPTION
STATIC
SHIELD
DISPENSE
DISPENSE
STATION
#1
COMPRESSOR
START
56
PTC
ASSY
RED/BLKBLU/BLK
K1
J3-1
LARGE
MEDIUM
STOP/PLUS
DISPENSE
STATION
DISPENSE
DISPENSE
STATION
#2
MOTOR
RUN
2
WHI
N
1
RIGHT
DISPENSE
REDRED
PUMPPUMP
RIGHT
DISPENSE
AUXILLARY
CONTROL BOARD
J4-1
J3-5
STATIC
SHIELD
SMALL
#2
STATIC
SHIELD
120 VOLTS AC
or
230 VOLTS AC
2 WIRE
SINGLE PHASE
SCHEMATIC WIRING DIAGRAM JDF-2S
SCHEMATIC WIRING DIAGRAM JDF-2S
Models with Dual Dispense Option
CONDENSOR FAN
BLU/BLK
MOTOR
ORN
WHI/ORN
J4-5
TRANSFORMER
BLK
BLU
L
L
O
I
A
N
WHI/BLU
WHI
D
E
WHI
TRANSFORMER
BLU
L
L
O
I
A
N
WHI/BLU
D
E
WHI/BLK
K1
WHI WHI
BLK
RED/BLK
REFRIGERATION
SWITCH
BRN
WHI
BLK
WHI/BLK
J1-1
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
WHI/BLU
BLU
WHI/BLU
BLU
BLK
RED
BLU
YEL
ORN
J5-5
J1-5
J2-1
CONTROL
J2-6
P
J6-1
C
BOARD
J6-3
J12-1
J12-3
J11-1
J11-5
J8-2
J8-1
WHI/VIO
J1-1
J1-3
WHI RED/BLK
RECIR.
PUMP
GRN
1
WHI/VIO
VIOVIO
WHI/ORNWHI/ORN
YELYEL
REDRED
ORNORN
12
J6-1
J6-5
J5-1
WHI
BLK
BLK
BRN BRN
DISPENSE
YEL
LOCKOUT
SWITCH
44745.0000A 03/11© 2011 BUNN-O-MATIC CORPORATION
BLK
WHI
RED
J3-1
WHI/RED
J3-2
GRY
J7-1
WHI/BLK
J7-2
BLK or RED
J9-1
WHI
J9-2
J5-1
J5-4
YEL
WATER INLET
VALVE
BRN WHI
SOL
1
WHI
BLK
t
WATER BATH
THERMISTOR
Models with Mechanical Switches
GRN or YEL
RED
BLK
BLK
BLK
DISPENSE
YEL
LOCKOUT
SWITCH
120V
230V
MODELS
MODELS
N
L1
A B
A B
GRN
BLK
RED
FAN
BLK
1
BLK
t
CABINET
THERMISTOR
1
NL1GND
BLU
BRN
GRN/YEL
EMI
FILTER
A B
A B
WHI
BRN/WHI
WHI/GRN
Models with Lited Doors
_
+
BLK
BLK
_
+
RED
BLK
RIGHT
DISPENSE
SWITCH
RED
BLK
LEFT
DISPENSE
SWITCH
BLK
GRN
Regulator
Board
RED
J2-1
BLK
RED
+
RED
_
BLK
RED
J3-1
BLK
J1-1
BLK
BLK
Chassis
Ground
PROGRAM
SWITCH
Chassis
Ground
WHIWHI
BRNBRN
GRNGRN
Door
Ground
BRN
WHI
26
44744 032811
Page 27
BLU/BLK
THERM.
GRN/YEL-16
STATION 1
DISPENSE
STATION 1
DISPENSE
WHI/VIO
SOL SOL
STATION 3
DISPENSE
STATION 3
DISPENSE
WHI/VIO
SOL SOL
Models with Membrane Switches
J2-1
J2-5
STATIC
SHIELD
LARGE
SMALL
MEDIUM
STOP/PLUS
DISPENSE
STATION
#1
PUSH BUTTON OPTION
STATIC
SHIELD
DISPENSE
DISPENSE
STATION
#1
120 VOLTS AC
or
230 VOLTS AC
2 WIRE
SINGLE PHASE
SCHEMATIC WIRING DIAGRAM JDF-4S
COMPRESSOR ASSY
COMPRESSOR
MOTOR
LIMIT
RUN
START
2
3
56
N
PTC
4
1
ASSY
RED/BLKBLU/BLK
K1
STATION 2
DISPENSE
REDRED
VIO
PUMPPUMP
STATION 2
DISPENSE
YEL YEL
STATION 4
DISPENSE
REDRED
VIO
PUMPPUMP
STATION 4
DISPENSE
YEL YEL
AUXILLARY
CONTROL BOARD
J4-1
J3-1
J3-5
STATIC
SHIELD
LARGE
LARGE
SMALL
MEDIUM
MEDIUM
STOP/PLUS
STOP/PLUS
DISPENSE
DISPENSE
STATION
STATION
DISPENSE
DISPENSE
STATION
#3
#2
STATIC
SHIELD
DISPENSE
DISPENSE
STATION
#3
#2
44746.0000A 03/11 © 2011 BUNN-O-MATIC CORPORATION
BLU/BLK
ORN
WHI/ORN
ORN
WHI/ORN
J4-5
SMALL
STATIC
SHIELD
STATIC
SHIELD
MOTOR
CONDENSOR FAN
J1-1
J1-3
STATIC
SHIELD
DISPENSE
COLD
WATER
SWITCH
STATIC
SHIELD
DISPENSE
COLD
WATER
SWITCH
WHI
WHI RED/BLK
WHI/VIO
WHI/VIO
J5-1
LARGE
MEDIUM
STOP/PLUS
DISPENSE
STATION
#4
DISPENSE
DISPENSE
STATION
#4
GRN
1
12
1
12
J6-1
J6-5
SMALL
SCHEMATIC WIRING DIAGRAM JDF-4S
120V
230V
MODELS
MODELS
N
L1
J5-5
RECIR.
PUMP
WHI/VIO
VIOVIO
WHI/ORNWHI/ORN
YELYEL
REDRED
ORNORN
TAN
PNKVIO
BLUWHI/ORN
GRYYEL
WHI/GRNRED
GRNORN
STATIC
SHIELD
STATIC
SHIELD
BLK
RED
BLU
YEL
ORN
WHI
REFRIGERATION
SWITCH
RED/BLK BLK
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
WHI/GRN
J13-1
GRN
PNK
GRY
BLU
TAN
J13-6
WHI/BLU
BLU
WHI/BLU
BLU
BLK
RED
BLU
YEL
ORN
BLK
BRN
DISPENSE
YEL
LOCKOUT
SWITCH
GRN
TRANSFORMER
BLU
L
L
O
I
A
N
WHI/BLU
D
E
TRANSFORMER
BLU
L
L
O
I
A
N
WHI/BLU
D
E
COLD WATER
BRN
BLK
WHI/BLK
CONTROL
P
C
BOARD
VALVE
WHI/VIO WHI
WATER INLET
VALVE
BRN WHI
RED
J3-1
WHI/RED
J1-5
J3-2
GRY
J7-1
WHI/BLK
J7-2
BLK or RED
J9-1
WHI
J9-2
YEL
J15-1
ORN
BLU
J15-4
GRN or GRY
J5-1
RED
BLK
J5-4
WHI/BLK
K1
WHI
WHI/VIO
J1-1
J2-1
J2-6
J6-1
J6-3
J12-1
J12-3
A B
BLK
A B
WHI
BLK
BLK
WHI
SOL
SOL
1
RED
BLK
1
WHI
BLK
t
WATER BATH
THERMISTOR
Models with Mechanical Switches
BLK
BLK
t
J11-1
J8-2
J11-5
J8-1
YEL
BLK
BRN
DISPENSE
YEL
LOCKOUT
SWITCH
WHI
FAN
BLK
CABINET
THERMISTOR
8
1
BLK
BLK
Chassis
Ground
GRN/YEL
BRN
EMI
FILTER
A B
A B
BLK
PROGRAM
SWITCH
NL1GND
BLU
WHI
COLD WATER
DISPENSE
SWITCH
STATION 4
DISPENSE
SWITCH
STATION 3
DISPENSE
SWITCH
STATION 2
DISPENSE
SWITCH
STATION 1
DISPENSE
SWITCH
Chassis
Ground
Models with Lited Doors
BLKBLU
ORNBLK
YELBLK
REDBLK
GRNBLK
RED
_
BLK
+
RED
_
+
Regulator
Board
RED
J2-1
BLK
BLK
_
+
RED
BLK
_
+
RED
J3-1
BLK
J1-1
BRN
WHI
WHIWHI
BRNBRN
GRNGRN
Door
Ground
27
44744 032811
Page 28
QUICK SETUP GUIDE - JDF-2S and JDF-4S (JDF-2S shown)
P3577
1. Install door cover by first plugging the
door harness connector into the machine
harness connector located at the bottom
of the machine door.
2. Install door cover. 3. Secure the door cover using 5 screws
P3578 P3579
provided.
4. Place refrigeration switch in the OFF position.
P3582
7. Install bath tank fill tube over a nozzle as
shown.(See Initial Fill)
5. Connect water supply to machine. (See
Plumbing Requirements)
8. Place the program switch in the ON position.
P3588
6. Connect power supply to machine. (See
Electrical Requirements)
P3589
9. Hold the dispense switch until water begins to flow into the tank (approx. 10 seconds). When tank is full, water will begin
pour out of the overflow tube, Press the
dispense button to stop the flow of water.
10. Place the refrigeration switch in the
ON position and the program switch in the
OFF position.
11. Insert juice containers as shown.
28
P3591
12. Proceed to page 7 in the Operating and
Installation manual for calibration instructions and charts.
44744 032811
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