Bunn | JDF-2S 120V LIT 2 SEG PC W/GRAPHICS | Installation guide | BUNN JDF-2S 120V LIT 2 SEG PC W/GRAPHICS JDF-2S 120V LIT 2 SEG PC W/GRAPHICS Installation Guide

BUNN JDF-2S 120V LIT 2 SEG PC W/GRAPHICS JDF-2S 120V LIT 2 SEG PC W/GRAPHICS Installation Guide
JDF-2S, JDF-4S
Silver Series®
JDF-2S & JDF-4S PH or PC with Non LIT or LIT Graphic Door
JDF-2S & JDF-4S PH or PC with LIT Segment Door
INSTALLATION & OPERATING GUIDE
Bunn-O-Matic Corporation
Post Office Box 3227, Springfield, Illinois 62708-3227
Phone (217) 529-6601 | Fax (217) 529-6644
44744.0003 B 10/18 © 2018 Bunn-O-Matic Corporation
1
www.bunn.com
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCR/MCP/MCA single cup brewers, thermal servers and ThermoFresh® servers (mechanical and digital) 1 year parts and 1 year labor.
2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below:
a) Electronic circuit and/or control boards - parts and labor for 3 years.
b) Compressors on refrigeration equipment - 5 years parts and 1 year labor.
c) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts and
labor for 4 years or 40,000 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, non periodic cleaning and descaling, equipment failures related to poor water quality,
damage or casualty. In addition, the warranty does not apply to replacement of items subject to normal use including but
not limited to user replaceable parts such as seals and gaskets. 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, A Partner You Can Count On, Air Infusion, 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, Phase Brew, 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, Titan, trifecta, TRIFECTA (sylized logo), Velocity Brew, Air Brew, Beverage
Bar Creator, Beverage Profit Calculator, Brew better, not bitter., Build-A-Drink, BUNNSource, Coffee At Its Best, Cyclonic
Heating System, Daypart, Digital Brewer Control, Element, Milk Texturing Fusion, Nothing Brews Like a BUNN, Picture
Prompted Cleaning, Pouring Profits, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal Red Line, Ultra are either
trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial trifecta® brewer housing configuration is a trademark of Bunn-O-Matic Corporation.
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44744.2 031314
CONTENTS
Warranty......................................................................................................................... 2
User Notices................................................................................................................... 3
Initial Set-Up & Electrical Requirements......................................................................... 4
CE Requirements............................................................................................................ 4
Initial Fill......................................................................................................................... 5
Plumbing Requirements................................................................................................. 5
Door Cover Installation................................................................................................... 6
Plumbing Hookup........................................................................................................... 7
Operating Controls.......................................................................................................... 9
Dispenser Use............................................................................................................... 11
Portion Control Option.................................................................................................. 11
Cleaning........................................................................................................................ 13
Adjustments & Optional Settings.................................................................................. 15
Loading......................................................................................................................... 16
Priming......................................................................................................................... 16
Function Lists............................................................................................................... 19
Troubleshooting............................................................................................................ 21
Coolant Diagram........................................................................................................... 27
Schematic Wiring Diagram........................................................................................... 28
Quick Setup Guide........................................................................................................ 32
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.
WARNING
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.
HAZARDOUS
VOLTAGE
DISCONNECT FROM
POWER SOURCE
BEFORE REMOVING!
00656.0001
12559.0003
WARNING
AVERTISSEMENT
Artwork for P/N: 00656.0001
Artwork Rev: A
Use only on a properly protected
N'utilisez que sur un circuit protégé
REF
adapté à la charge nominale.
circuit capable of theDrawn:
rated load.
Date:
04/22/10
Toujours mettre le boitier à la masse.
Electrically ground the
chassis.
Se conformer aux codes national ou local
Follow national/local electrical codes.
délectricité.
Do not use near combustibles.
Garder les products combustibles á distance.
Do not deform plug or cord.
Ne pas déformer la fiche ou le cordon.
FAILURE TO COMPLY RISKS EQUIPMENT
DAMAGE, FIRE OR SHOCK HAZARD.
TOUT MANQUEMENT À SE CONFORMER À CES DIRECTIVES PEUT
ENTRAINER DES DOMMAGES À L'ÉQUIPMENT OU PRODUIRE DES
DANGERS D'INCENDIE OU D'ÉLECTROCUTION.
READ THE ENTIRE OPERATING MANUAL INCLUDING
THE LIMIT OF WARRANTY AND LIABILITY BEFORE
BUYING OR USING THIS PRODUCT.
VEUILLEZ LIRE LE MANUEL DE FONCTIONEMENT
EN ENTIER, Y COMPRIS LES LIMITES DE GARANTIES ET
RESPONSABILITÉS,AVANT D’ACHETER
OU D'UTILISER LE PRÉSENT PRODUIT.
THIS EQUIPMENT IS ENERGIZED AT ALL TIMES UNLESS
ELECTRICALLY DISCONNECTED.
WARNING
Moving Parts.
Risk of Electrical Shock.
Do not operate unit with
this panel removed.
Disconnect power
before servicing unit.
L' ÉQUIPEMENT EST TOUJOURS SOUS TENSION
LORSQU'IL N'EST PAS DÉBRANCHÉ.
00986.7000M 10/14 ©1994 Bunn-O-Matic Corporation
00986.7000
AVERTISSEMENT
Pièces amovibles.
Risk de choc électrique.
Ne pas utiliser l’appareil lorsque
le panneau est enlevé.
Debrancher le cordon
d’alimentation de l’appareil avant
de faire l’entretien.
27442.7000
CHARGE
CHARGE
Type R134A, Amount 255 g (9 oz)
GWP 1430, CO2 equivalent 0.36t
Design Pressures:
High 255 psi (17.6 bar) (1.76 MPa)
Low 36 psi (2.5 bar) (0.25 MPa)
Type R134A, Amount 283 g (10 oz)
GWP 1430, CO2 equivalent 0.40t
Design Pressures:
High 335 psi (23 bar) (2.31 MPa)
Low 88 psi (6 bar) (0.61 MPa)
Contains fluorinated greenhouse gases covered
by the Kyoto Protocol. Hermetically sealed system.
Contains fluorinated greenhouse gases covered
by the Kyoto Protocol. Hermetically sealed system.
33461.0012 JDF-2S 220-230V
33461.0014 JDF-4S 220-230V
CHARGE
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)
Type R134A, Amount 9 oz (255 gm)
Design Pressures:
High 255 psi (17.6 bar) (1.76 MPa)
Low 36 psi (2.5 bar) (0.25 MPa)
33461.0000 JDF-4S 120V
33461.0001 JDF-2S 120V
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44744.2 092517
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 32°C and 50%
humidity.
• 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 can be used by persons aged from 18 years and above if they have been given supervision or
instruction concerning use of the appliance in a safe way and if they understand the hazards involved.
• Keep the appliance and its cord out of reach of children aged less than 18 years.
• Appliances can be used by persons 18 years and above with reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
• Children under the age of 18 years 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.
• Cleaning and user maintenance shall not be made by children unless they are older than 18 years and supervised.
• This appliance is intended to be used in household and similar applications such as:
– staff kitchen areas in shops, offices and other working environments;
– by clients in hotels, motels and other residential type environments;
– bed and breakfast type environments.
• This appliance not intended to be used in applications such as:
– farm houses;
• Access to the service areas permitted by Authorized Service personnel only.
• The A-Weighted sound pressure level is below 70 dBA.
NORTH AMERICAN 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 41°F to 90°F (5°C to
32°C) and 50% humidity.
• 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 pressure washer.
• This appliance can be used by persons aged from 18 years and above if they have been given supervision or
instruction concerning use of the appliance in a safe way and if they understand the hazards involved.
• Keep the appliance and its cord out of reach of children aged less than 18 years.
• Appliances can be used by persons 18 years and above with reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
• Children under the age of 18 years 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.
• Cleaning and user maintenance shall not be made by children unless they are older than 18 years and supervised.
• This appliance is intended for commercial use in applications such as:
– staff kitchen areas in shops, offices and other working environments;
– by clients in hotel and motel lobbies and other similar types of environments;
• Access to the service areas permitted by Authorized Service personnel only.
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44744.2 10/09/18
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.
This equipment contains fluorinated greenhouse gases covered by the Kyoto Protocol. Hermetically sealed system. Type
R134a, 283 g (10 oz), GWP 1430, CO2 equivalent 0.40t or type R134a, 255 g (9 oz), GWP 1430, CO2 equivalent 0.36t.
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 220-230V 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 (0.138
and 0.690 mPa). 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 (0.690 mPa) to reduce it to 50 psi (0.345 mPa). The regulator is also necessary if the water
source has pressure fluctuations. 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 counter top. 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.
5
44744.2 092517
JDF-2S or JDF-4S DOOR COVER INSTALLATION
1
Station
1
2
Station
2
3
4
Station Station
3 water 4
Step 1: Familiarize yourself with the circuit board switch
membrane connector layout before connecting the
switch membranes to the appropriate stations.
Chilled Water: Optional feature on JDF-4S models.
Step 2: Hold door cover close enough to inner door
and connect all switch membranes to the circuit
board before door placement onto the inner door
assembly. Model JDF-2S: Switch membranes connect onto circuit board connectors 1 (J2) & 2 (J3).
Upper
Lower
Side
Step 3: After connecting all switch membranes to the
circuit board, place door cover over the inner door assembly.
Step 4: Locate the 5 provided screws. Install and
start all 5 screws through the door cover holes and
into the receiving threaded weld nut (2 upper, 2
lower and 1 right side).
Step 5: Finish screwing all screws down until they are
set in position (Do Not Over Tighten).
Step 6: Place flavor labels into label holders accordingly to the product being placed in the cabinet per
dispense station.
6
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
P3580-1
FIG 2 Plumbing Connections - JDF-4S
FIG 1 Plumbing Connections - JDF-2S
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 (Fig. 5 & 6).
4. Set the Program Switch (Fig. 7) to the ON position. (On older models without program switch, set the Dispense Lockout Switch (Fig. 13) 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 4 Initial Fill Hose - JDF-4S
FIG 3 Initial Fill Hose - JDF-2S
7
44744.2 110813
INITIAL FILL (Continued)
7. Turn ON the refrigeration switch near the main control board (Fig. 7). 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 6 Initial Fill Connection - JDF-4S
FIG 5 Initial Fill Connection - JDF-2S
8
44744.2 110813
OPERATING CONTROLS
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
Pressing and holding switch will initiate product flow from the respective nozzle; releasing the switch will stop
the flow.
FIG 9 Product Dispense Switches - JDF-2S
FIG 10 Product Dispense Switches - JDF-4S
9
44744.2 110813
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 12 Product Dispense Switches - JDF-4S
FIG 11 Product Dispense Switches - JDF-2S
Dispense Lockout Switch
Early models has the dispense On/Off switch at the bottom front of the dispenser behind the drip tray. Later
model juice dispensers has the switch located on the
rear side of the cabinet door at the top.
The switch is used to disable product dispense and door
LED lights, preventing unauthorized use.
FIG 13 Dispense Lockout Switch
Program Switch
This switch is located near the main control board next
to the refrigeration switch.
FIG 14 Program Switch
10
44744.2 110813
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 (Push and Hold Membrane 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. 15 and 16 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 150 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 (Portion Control 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" three times.
3. Place a measuring container under the station to be adjusted, then press and hold the appropriate dispense
switch until the desired amount is dispensed. The machine will record the amount of time that the button is
pressed continuously. 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.
11
44744.2 110813
OPERATING CONTROLS (Continued)
Procedure to return all dispense heads back to Push and Hold mode (Push and Hold Membrane 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.
P3585
P3845
FIG 15 Temperature LEDs JDF-2S
(Early Models)
FIG 16 Temperature LEDs JDF-4S
FIG 15A Temperature LEDs JDF-2S
(Late Models)
12
44744.2 062912
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), drip tray and drip tray cover in a mild detergent solution. Rinse thoroughly.
Use brush (00674.0000) to clean inside and oring area on dispense nozzles.
2. Wipe splash panel, areas around dispense nozzle(s), and refrigerated compartment with a clean, damp cloth.
3. Use brush and a mild detergent solution to clean inside dispense area where dispense nozzles are removed. Rinse.
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.
13
44744.2 121913
CLEANING (cont)
Weekly: Clean Condenser Coils and Filter
1. Removable filter can be cleaned in warm soapy water.
2. Use a soft bristle brush to clean the build up of dirt in the condenser.
Annually: Check water level in ice bath. Top off if needed.
Annually: Replace Pump Tubing
39690.0000
39688.0000
Tube Kit JDF-2S & JDF-4S
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]) environment. 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 disconnect 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.
14
44744.2 031116
: Purge all dispense stations to remove air from water line before making initial adjustments.
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. Suggested target is 3 ounces (1 ounce per second
flow rate.
P3586
5. Adjust the water flow rate Fig 17, (clockwise to increase flow rate; counterclockwise
FIG 17 Adjusting Water Flow
to decrease flow rate) to the corresponding product mix ratio. Chart below provides
Using 1/4" allen wrench
general brix instructions.
6. Repeat steps 1 through 5 as necessary until the correct water flow rate is achieved.
2+1
*3.0 fl. oz (89 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%
*3.0 fl. oz (89 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
3.0 fl. oz (89 ml)
As Required
per 3-second test
*Maximum flow rate may be less depending on the water pressure supply at each location.
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 %.
7. Repeat steps 1 through 5 for the remaining dispense positions.
8. Place the Program switch back into the OFF position.
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.
Start with the adjustment dial in the nine o'clock position.
5. Turn the adjustment knobs clockwise to increase speed and counterclockwise to decrease speed.
If splashing occurs while dispensing, reduce water flow rate. Then re-adjust pump speed to achieve proper ratio/brix target.
6. The knob positions directly correspond to dispense station locations.
: 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.
15
44744.2 110813
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.
NOTE: Loading frozen concentrate in the product cabinet may cause damage to the machine. This damage is
not covered by warranty.
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.
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” until concentrate dispenses from the dispense nozzle.
Note: This may take several seconds, depending on the installation and set pump speed.
16
44744.2 110813
1. Adjust water flow as described in . Record water output setting for later reference on each dispense head. Suggested target
is 3 ounces.
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.
: For best results, discard the first sample and measure a second sample. Repeat the same practice after every adjustment.
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 section.
7. Place the Program switch back into the OFF position.
3 second
water dispense
in ounces
1.5
1.75
2.0
2.25
2.5
2.75
3.0
3.25
3.5
3.75
4.0
3 second
water dispense
in milliliters
44.4
51.8
59.1
66.5
73.9
81.3
88.7
96.1
103.5
110.9
118.3
2:1
2.25
2.63
3.00
3.38
3.75
4.13
4.50
4.88
5.25
5.63
6.00
Ratio Target
3:1
4:1
5:1
2.00 1.88 1.80
2.33 2.19 2.10
2.67 2.50 2.40
3.00 2.81 2.70
3.33 3.13 3.00
3.67 3.44 3.30
4.00 3.75 3.60
4.33 4.06 3.90
4.67 4.38 4.20
5.00 4.69 4.50
5.33 5.00 4.80
6:1
1.75
2.04
2.33
2.63
2.92
3.21
3.50
3.79
4.08
4.38
4.67
7:1
1.71
2.00
2.29
2.57
2.86
3.14
3.43
3.71
4.00
4.29
4.57
8:1
1.69
1.97
2.25
2.53
2.81
3.09
3.38
3.66
3.94
4.22
4.50
9:1
1.67
1.94
2.22
2.50
2.78
3.06
3.33
3.61
3.89
4.17
4.44
10:1
1.65
1.93
2.20
2.48
2.75
3.03
3.30
3.58
3.85
4.13
4.40
11:1
1.64
1.91
2.18
2.45
2.73
3.00
3.27
3.55
3.82
4.09
4.36
12:1
1.63
1.90
2.17
2.44
2.71
2.98
3.25
3.52
3.79
4.06
4.33
2:1
66.5
77.6
88.7
99.8
110.9
122.0
133.1
144.2
155.3
166.4
177.4
Ratio Target
3:1
4:1
5:1
59.1 55.5 53.2
69.0 64.7 62.1
78.9 73.9 71.0
88.7 83.2 79.8
98.6 92.4 88.7
108.4 101.7 97.6
118.3 110.9 106.5
128.1 120.1 115.3
138.0 129.4 124.2
147.9 138.6 133.1
157.7 147.9 141.9
6:1
51.8
60.4
69.0
77.6
86.3
94.9
103.5
112.1
120.8
129.4
138.0
7:1
50.7
59.1
67.6
76.0
84.5
92.9
101.4
109.8
118.3
126.7
135.2
8:1
49.9
58.2
66.5
74.9
83.2
91.5
99.8
108.1
116.4
124.8
133.1
9:1
49.3
57.5
65.7
73.9
82.1
90.4
98.6
106.8
115.0
123.2
131.4
10:1
48.8
56.9
65.1
73.2
81.3
89.5
97.6
105.7
113.9
122.0
130.1
11:1
48.4
56.5
64.5
72.6
80.7
88.7
96.8
104.8
112.9
121.0
129.0
12:1
48.1
56.1
64.1
72.1
80.1
88.1
96.1
104.1
112.1
120.1
128.1
17
44744.2 110813
ADJUSTMENT & OPTIONAL SETTINGS (cont)
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.
Optional Cold Water Flow Adjustment
Some dispensers are equipped with an optional cold water dispense valve. It is recommended to adjust the flow rate upon initial
set up of the dispenser. The adjustment for the cold water can be located inside the dispenser behind the right service panel.
The cold water dispense valve is mounted to the frame just above the ice bath. Attached to this valve is a needle type adjustment
valve. Turn the adjustment clockwise to decrease the water flow, and counter-clockwise to increase the water flow.
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. Early models has the Dispense Lockout switch at the bottom front of the dispenser behind the drip tray. Later
model juice dispensers has the Dispense Lockout switch located on the rear side of the cabinet door at the
top.
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.
18
44744.2 082112
FUNCTION LIST
Circuit Board LED Indicators - JDF-2S (Early Models)
LED #
1
LED Color
2 Cabinet
Red
Illuminates:
Green
When the compressor should be ON.
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.
3 Cabinet
Green
Shorted cabinet thermistor will turn #2 and #3 LED’s on steady.
*This mode disables the cabinet low temperature lockout fault.
When cabinet temperature is below 50 degrees F.
4 Bath
Red
When bath temperature is above 34 degrees F.
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
Flashes slowly when compressor is in a 6 minute delay period.
Green
When bath temperature is below 34 degrees F.
1
2
3
4
5
FIG 18 JDF-2S
(Early Models)
19
P3585
44744.2 110813
FUNCTION LIST (Continued)
Circuit Board LED Indicators - JDF-4S and Late Model JDF-2S
LED #
LED Color
1 Bath
Red
Illuminates:
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.
When bath temperature is above 34 degrees F.
Flashes slowly when compressor is in a 6 minute delay period.
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.
5 Cabinet
Green
Shorted cabinet thermistor will turn #4 and #5 LED’s on steady.
*This mode disables the cabinet low temperature lockout fault.
When cabinet temperature is below 50 degrees F.
4
1
5
2
3
FIG 19 JDF-4S
20
P3845
44744.2 110813
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
PROBABLE CAUSE
REMEDY
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.
1. Cabinet cooling fan.
Replace fan (24vdc).
Note: Fan receives power when the
dispenser is powered.
2. Bath recirculation pump.
A) If not running, check refrigeration switch and wiring for proper
continuity.
B) Check for 120V or 230V AC at
pump. Replace pump.
Dispense nozzle dripping/won't stop
dispensing.
3. Restricted water flow to cabinet
water coil and bath.
Check for kinked hose.
1. Juice residue causing o-ring on
dispense nozzle to lose vacuum.
A) Remove dispense nozzle. Clean
nozzles and o-ring in mild detergent
solution.
B) Use soft bristle brush and mild
detergent solution to clean dispense
valve area that dispense nozzles are
seated.
2. Mechanical Switch Models- This
may be caused by juice residue
splashed or wiped onto switches.
Clean or replace switches.
3. Membrane Switch Models-
Check continuity of dispense
switches. Replace as needed.
21
44744.2 121913
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
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.
1. Compressor ON/OFF switch.
Check for "ON" position or no continuity - replace switch.
2. Dirty condenser filter or fins.
Clean filter and fins or replace condenser filter. (Filter not supplied on
some machines).
3. Condenser fan not running.
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).
4. Compressor relay not activating.
5. Compressor not running.
6. Compressor running and not
cooling.
Dispenser Locked Out
Dispense stations not working.
Cooling system failure.
1. Check Dispense Lockout switch.
1. Refrigeration or cold water recirculation system.
22
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.
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 pertain to refrigeration or cold water
recirculation
44744.2 062912
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Dispense station not working
1. Dispense Lockout switch set to
OFF position.
Place switch in ON position.
2. Dispense switch failed
Check switch and harness for proper
continuity.
Main water supply
Check for ON position.
Frozen bath
A) Compressor relay/contacts
shorted - replace relay.
All stations dispense concentrate
only
B) Recirculating pump - replace or
check for kinked flex line.
Inlet water valve failed
23
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.
44744.2 062912
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Dispense station
concentrate only
Water solenoid
Replace solenoid (24vdc) or check
wire connection between water
valve and main control board.
Dispense station
water only
Concentrate out
Replace refill concentrate container
or BIB
Product pump not pumping
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.
Pump not turning
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.
24
44744.2 062912
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Water leak filling drip tray or around
dispense deck area
1. Initial fill/setup
Some expansion normal. May fill
drip tray during initial ice block
formation
2. Dispense deck
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.
3. Water pressure greater than
100psi
Water leaking beneath machine
1. Bath tank overflow.
Install water pressure regulator and
reduce to 50 psi.
A) Check all internal water connections.
B) Check internal plumbing connections.
2. Condensation from cabinet cooling coil.
Erratic spray during dispense
Dispense nozzle dripping water
Dispense nozzle mixer missing or
broken
Dispense solenoid.
25
Check for routing of condensation
tube to water bath.
Replace mixer.
Replace dispense deck solenoid.
44744.2 062912
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Unit is not working
1. Step-down transformer.
Check for 120/24 or 230/24 vac. If no
24vac reading, replace step-down
transformer.
2. Main control board.
If 24 vac present and no LED’s lit,
replace control board..
1. Product viscosity or too cold.
Thorough thaw of product before
use (35° - 40°)
2. Low water pressure.
Maintain 20 psi or higher and a
minimum flow rate of 3 fl oz/sec.
3. High water pressure.
Over 100 psi, install a pressure
regulator and set to 50 psi.
4. Dispense valve adjustment setting.
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
B) Adjust water to proper mix ratio.
Once water is set, adjust motor
speed to achieve brix %.
Difficulty brixing and/or weak beverage
5. Brix ratio.
Check for proper brix ratio per product using Total Dispense method
and or refractometer method.
1. Pump tubing.
Inspect, clean, or replace tubing
and pump rotor/rollers for ease of
rotation.
2. Use of portable water pump.
A) Follow plumbing requirements
for pressure and flow rate.
B) Source another portable pump
or water supply that meets requirements.
Difficulty brixing bag-in-box
Vacuum leak
Inspect all lines and connections
from bag-in-box connector to bottle
adapter assembly.
26
44744.2 062912
CONDENSER
FILTER
DRYER
SUCTION
ACCUMULATOR
COMPRESSOR
PROCESS TUBE
EVAPORATOR
COOLANT SCHEMATIC DIAGRAM
27
44744.2 062912
SCHEMATIC WIRING DIAGRAM JDF-2S
(Models with LED Lited Doors)
120V
MODELS
GRN/YEL
GND L1 N
EMI
FILTER
A
B
A
B
A
B
BLK
WHI
BRN/WHI
WHI/GRN
Models with Dual Dispense Option
TRANSFORMER
BLU
L
O
A
D
WHI/BLU
BRN
BLU
SCHEMATIC WIRING DIAGRAM JDF-2S
220-230V
MODELS
L1 N
L
I
N
E
BLK
GRN
A B
WHI
TRANSFORMER
BLU
WHI/BLU
L
O
A
D
L
I
N
E
BLK
WHI
COMPRESSOR ASSY
BLU/BLK
COMPRESSOR
MOTOR
WHI
PTC
ASSY 1
CONDENSOR FAN
WHI
WHI
RED/BLK
GRN
ORN
WHI/VIO
1
WHI/VIO
SOL
RIGHT
DISPENSE
YEL
YEL
SOL
RED
ORN
WHI/ORN
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
RED
WHI/RED
J7-1
J7-2
GRY
WHI/BLK
J9-1
J9-2
BLK or ORN
WHI
RED
BLK
FAN
J2-1
J2-6
RED
ORN
WHI/BLU
12
Models with Lited Doors
J3-1
J3-2
_
+
LEFT
DISPENSE
VIO
WHI/ORN
YEL
J6-1
BLU
J6-3
WHI/BLU
J12-1
BLU
J12-3
BLK
RED
BLU
YEL
ORN
J11-1
CONTROL P C BOARD
VIO
WHI/ORN
YEL
WHI/VIO
WHI
SOL
_
+
1
CABINET
THERMISTOR
RIGHT
DISPENSE
SWITCH
Models with Mechanical Switches
AUXILLARY
CONTROL BOARD
J11-5
J5-1
J5-4
BLK
LEFT
DISPENSE
SWITCH
BLK
RED
BLK
DISPENSE
STATION
#2
RED
BLK
WHI
ORN
BRN
BLK
YEL
STATIC
SHIELD
DISPENSE
STATION
#2
DISPENSE
LOCKOUT
SWITCH
YEL
BRN
YEL
DISPENSE
DISPENSE
J3-1
J1-1
ORN
DISPENSE
STATION
#1
Regulator
Board
STATIC
SHIELD
PUSH BUTTON OPTION
STATIC
SHIELD
J2-1
GRN
BLK
DISPENSE
STATION
#1
+
_
1
GRN or YEL
RED
BLK
BLK
WHI
J8-1 J8-2
RED
RED
BLK
J5-5
J5-1
J1-3
J1-1
J4-5
J4-1
J3-5
J3-1
LARGE
SMALL
MEDIUM
STATIC
SHIELD
STOP/PLUS
J2-5
SMALL
LARGE
MEDIUM
STOP/PLUS
J2-1
J6-5
BLK
RED
t
t
WATER BATH
THERMISTOR
Models with Membrane Switches
J6-1
BLK
PUMP
WATER INLET
VALVE
BRN
RED
RED
VIO
REFRIGERATION
SWITCH
RED/BLK
BRN
PUMP
PUMP
WHI
BLK
WHI/BLK
BRN
RED
WHI RECIR.
RIGHT
DISPENSE
BLK
K1
LEFT
DISPENSE
BLK
BLK
MOTOR
RED/BLK
1
BLU/BLK
BLU/BLK
WHI/BLK
K1
WHI
N
WHI
2
BLK
4
5
J1-5
6
J1-1
3
RUN
START
GRN/YEL-16
LIMIT
THERM.
DISPENSE
LOCKOUT
SWITCH
WHI
BRN
GRN
PROGRAM
SWITCH
WHI
BRN
GRN
BLK
Chassis
Ground
Chassis
Ground
Door
Ground
EARLY MODELS
BLK
RED
YEL
BLU
ORN
J6-1
J6-5
J11-1
J11-5
BLU
BLU
BRN
YEL
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
DISPENSE
LOCKOUT
SWITCH
LATE MODELS
28
44744.2 031116
SCHEMATIC WIRING DIAGRAM JDF-2S
(Models with Fluorescent Lited Doors)
120V
MODELS
220-230V
MODELS
L1 N
EMI
FILTER
A
B
BLK
BLU
L
O
A
D
L
I
N
E
BLK
GRN
A B
WHI
TRANSFORMER
BLU
WHI/BLU
L
O
A
D
L
I
N
E
A
B
BRN/WHI
B
TRANSFORMER
WHI/GRN
A
WHI
Models with Dual Dispense Option
WHI/BLU
BRN
BLU
GRN/YEL
GND L1 N
BLK
WHI
COMPRESSOR ASSY
BLU/BLK
COMPRESSOR
MOTOR
WHI
WHI
WHI
RED/BLK
J2-6
RED
ORN
WHI/BLU
12
BLU
J6-1
J6-3
WHI/BLU
J12-1
BLU
J12-3
t
WATER BATH
THERMISTOR
t
CABINET
THERMISTOR
AUXILLARY
CONTROL BOARD
BLK
RED
BLU
YEL
ORN
J11-1
BLK
J11-5
GRN or YEL
RED
BLK
BLK
J5-1
J5-5
J5-1
J1-3
J1-1
J4-5
J4-1
J3-5
J3-1
J2-5
J2-1
J6-5
BLK
RED
BLU
YEL
ORN
4
WHI
LINE
DOOR
HARNESS
RED
1
LEFT
DISPENSE
SWITCH
BLK
1
TRANSFORMER
LOAD
3
DOOR
(Single Ballast)
1
3
DOOR
(Dual Ballast)
GRN
WHI
WHI
GRN
WHI
RED
LARGE
SMALL
MEDIUM
STATIC
SHIELD
STOP/PLUS
LARGE
SMALL
MEDIUM
STOP/PLUS
J5-4
DISPENSE
LOCKOUT
SWITCH
WHI/GRN
Chassis
Ground
RIGHT
DISPENSE
SWITCH
Models with Mechanical Switches
Models with Membrane Switches
J6-1
BLK
WHI
J9-1
J9-2
WHI/BLK
˜
RECTIFIER
+
µ
1
STATIC
SHIELD
1
DISPENSE
STATION
#1
DISPENSE
DISPENSE
STATIC
SHIELD
STATIC
SHIELD
DISPENSE
LOCKOUT
SWITCH
DISPENSE
STATION
#2
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
1
Chassis
Ground
BLK
RED
WHI
WHI
Chassis
Ground
Chassis
Ground
PUSH BUTTON OPTION
BLU
BLU
DISPENSE
STATION
#2
BLK
BLK
2
DISPENSE
STATION
#1
WHI
BRN
RED
ORN
WHI/ORN
BLK
WHI
FAN
2
WHI
1
BLK
RED
WHI
WHI
SOL
J7-1
J7-2
RED
BLK
GRN
WHI
BRN
YEL
RED
WHI/RED
GRY
WHI/BLK
BLK
RIGHT
DISPENSE
YEL
VIO
WHI/ORN
YEL
J3-1
J3-2
J2-1
WHI
SOL
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
WHI
WHI/BLK
LEFT
DISPENSE
WHI/VIO
CONTROL P C BOARD
VIO
WHI/ORN
YEL
SOL
WHI/GRN
1
WATER INLET
VALVE
BRN
GRN
BLU or BRN
ORN
WHI/VIO
WHI/VIO
REFRIGERATION
SWITCH
GRN
WHI
BLU or BRN
PUMP
RED/BLK
BLK
RED
VIO
PUMP
GRN
WHI
BLK
WHI/BLK
BRN
PUMP
WHI RECIR.
RIGHT
DISPENSE
BLK
K1
BLK
1
MOTOR
RED/BLK
LEFT
DISPENSE
RED
WHI/BLK
CONDENSOR FAN
BLU/BLK
BLU/BLK
K1
WHI
N
WHI
2
BLK
4
5
PTC
ASSY 1
J1-5
6
J1-1
3
RUN
START
GRN/YEL-16
LIMIT
THERM.
WHI
BLK
BALLAST
BALLAST
BALLAST
BLK
WHI
38951.0001D 10/09 © 2006 BUNN-O-MATIC CORPORATION
WHI
WHI
29
WHI
44744.2 030813
120V
MODELS
SCHEMATIC WIRING DIAGRAM JDF-2S PUSH/HOLD
(OVAL SWITCH MEMBRANE)
BRN
BLU
GRN/YEL
A B
GRN
A B
A B
A
B
WHI/GRN
BLK
BRN/WHI
L
I
N
E
WHI
BLK
L
O
A
D
WHI
TRANSFORMER
WHI/BLU
GND L1 N
EMI
FILTER
Models with Dual Dispense Option
BLU
220-230V
MODELS
L1 N
TRANSFORMER
BLU
WHI/BLU
L
O
A
D
L
I
N
E
Models with Lit Doors
BLK
WHI
BLU/BLK
COMPRESSOR ASSY
C
P
Protector
CONDENSOR FAN
RED/BLK
GRN
ORN
WHI/VIO
1
LEFT
DISPENSE
SOL
RIGHT
DISPENSE
YEL
YEL
SOL
WHI/ORN
WHI/VIO
VIO
WHI/ORN
YEL
RED
ORN
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
SOL
J3-1
J3-2
RED
WHI/RED
J7-1
J7-2
GRY
WHI/BLK
J9-1
J9-2
BLK or ORN
WHI
Regulator
Board
WHI
J2-1
RED
BLK
J2-6
RED
ORN
12
J3-1
J1-1
FAN
J2-1
CONTROL BOARD
VIO
WHI/ORN
YEL
WATER INLET
VALVE
BRN
BLK
BRN
PUMP
REFRIGERATION
SWITCH
WHI
RED
RED/BLK
+ RED
1
BLK
VIO
PUMP
BLK
WHI RECIR.
RIGHT
DISPENSE
1
LEFT
DISPENSE
BLK
WHI
RED/BLK
K1
BLK
WHI
WHI
BLK
WHI/BLK
BRN
MOTOR
+ -
WHI
SOL
WHI
J1-5
BLU/BLK
WHI/VIO
BLU/BLK
WHI/VIO
COLD WATER
VALVE
WHI/VIO
BLUE
Start Capacitor
PUMP
WHI/BLK
BLK
BRN
RED
K1
WHT
2
J1-1
GRN
1
BRN/WHT
RED
WHI
RELAY
BLK
A
t
t
CABINET
THERMISTOR
WATER BATH
THERMISTOR
Models with P/H Membrane Switches
STATIC
SHIELD
WHI/BLU
J6-1
BLU
J6-3
WHI/BLU
J12-1
BLU
J12-3
J5-1
J5-6
J1-1
J1-3
J4-1
J4-6
J15-7
J3-1
DISPENSE
STATION
#2
YEL
ORN
BLU
J15-4
J5-1
J11-1
J5-4
GRY
RED
BLK
BLK
J8-1
BLK
J11-5
Push & Hold
Connector
STATIC
SHIELD
DISPENSE
STATION
#1
J15-1
J3-6
J2-1
J2-6
J13-6
J15-1
AUXILLARY
CONTROL BOARD
J13-1
BLK
BLK
1
BLK
WHI
BRN
GRN
BLK
BRN
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
WHI
BRN
GRN
PROGRAM
SWITCH
BRN
DISPENSE
LOCKOUT
SWITCH
Chassis
Ground
Chassis
Ground
Door
Ground
44745.0002 A 11/18 © 2011 BUNN-O-MATIC CORPORATION
30
44744 011619
120V
MODELS
220-230V
MODELS
L1 N
GND L1 N
GRN/YEL
GRN
BRN
BLU
SCHEMATIC WIRING DIAGRAM JDF-2S PORTION CONTROL
(OVAL SWITCH MEMBRANE)
EMI
FILTER
A B
A B
BLK
WHI
TRANSFORMER
L
O
A
D
WHI/BLU
L
I
N
E
A
BLK
L
I
N
E
WHI
L
O
A
D
BLU
B
BLK
Models with Lit Doors
WHI
COMPRESSOR ASSY
BLU/BLK
A B
BLK
BLU
WHI/BLU
WHI
TRANSFORMER
C
A
P
Protector
WHI
RELAY
WHT
2
BLUE
WHI
ORN
WHI/VIO
1
VIO
WHI/ORN
YEL
STATION 1
DISPENSE
SOL
STATION 2
DISPENSE
YEL
YEL
SOL
WHI/ORN
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
VIO
WHI/ORN
YEL
RED
ORN
RED
J2-1
J3-1
J3-2
RED
WHI/RED
J7-1
J7-2
GRY
WHI/BLK
J9-1
J9-2
BLK or ORN
WHI
RED
BLK
Regulator
Board
12
J3-1
1
J2-6
RED
ORN
BLK
FAN
J2-1
t
CONTROL BOARD
WHI/VIO
WHI/VIO
BLK
PUMP
+ RED
J1-1
CABINET
THERMISTOR
BRN
RED
+ -
WHI
SOL
WHI
VIO
GRN
1
STATION 2
DISPENSE
J1-1
STATION 1
DISPENSE
WATER INLET
VALVE
BRN
WHI
BLK
WHI/BLK
BRN
PUMP
BLK
REFRIGERATION
SWITCH
RED/BLK
WHI/VIO
WHI RECIR.
BLK
RED/BLK
K1
BLK
MOTOR
CONDENSOR FAN
WHI
BLU/BLK
RED/BLK
BLK
Start Capacitor
BLU/BLK
PUMP
WHI
SOL
BLK
BRN
RED
WHI/VIO
J1-5
GRN
1
BRN/WHT
COLD WATER
VALVE
WHI/BLK
K1
t
WATER BATH
THERMISTOR
J13-1
J13-6
WHI/BLU
J6-1
BLU
J6-3
WHI/BLU
J12-1
BLU
J12-3
BLK
RED
YEL
J15-4
WHI
BRN
GRN
Chassis
Ground
J5-1
Door
Ground
BLK
BLK
J11-1
J5-4
J8-1 J8-2
J11-5
BRN
BLK
BLU
ORN
WHI
BRN
GRN
J15-1
YEL
WHI
BRN
BRN
PROGRAM
SWITCH
BLU
1
BLK
BLU
1
DISPENSE
LOCKOUT
SWITCH
Chassis
Ground
J6-5
Models with P/C Membrane Switches
J5-1
J5-6
J1-1
J1-3
J4-1
J4-6
J15-7
J3-1
STOP/PLUS
J3-6
LARGE
SMALL
STATIC
SHIELD
MEDIUM
J2-1
J6-1
DISPENSE
STATION
#1
STOP/PLUS
J2-6
LARGE
SMALL
STATIC
SHIELD
MEDIUM
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
J15-1
AUXILLARY
CONTROL BOARD
Portion Control
Connector
DISPENSE
STATION
#2
44745.0001 A 11/18 © 2011 BUNN-O-MATIC CORPORATION
31
44744 011619
SCHEMATIC WIRING DIAGRAM JDF-4S
(Models with LED Lited Doors)
120V
MODELS
220-230V
MODELS
L1 N
GND L1 N
GRN/YEL
GRN
BRN
BLU
SCHEMATIC WIRING DIAGRAM JDF-4S
EMI
FILTER
A
B
BLK
L
I
N
E
WHI
A B
TRANSFORMER
BLU
L
O
A
D
WHI/BLU
L
I
N
E
A B
BLK
L
O
A
D
WHI
B
BLK
BLU
WHI/BLU
BLU/BLK
A
WHI
TRANSFORMER
BLK
WHI
OVERLOAD
1 PROTECTOR
3
2
COMPRESSOR ASSY
C
WHI
M
3
1
WHI
ORN
PUMP
WHI/VIO
1
VIO
WHI/ORN
YEL
STATION 2
DISPENSE
YEL
SOL
YEL
RED
ORN
WHI/ORN
SOL
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
VIO
WHI/ORN
YEL
J2-1
RED
STATION 4
DISPENSE
RED
VIO
PUMP
ORN
PUMP
WHI/VIO
1
VIO
WHI/ORN
YEL
STATION 3
DISPENSE
WHI/VIO
STATION 4
DISPENSE
YEL
SOL
YEL
PNK
BLU
GRY
RED
ORN
WHI/ORN
SOL
TAN
WHI/GRN
GRN
PNK
GRY
BLU
TAN
RED
WHI/RED
J7-1
J7-2
GRY
WHI/BLK
J9-1
J9-2
BLK or ORN
WHI
FAN
1
t
CABINET
THERMISTOR
t
WATER BATH
THERMISTOR
Models with Lited Doors
Models with Mechanical Switches
J13-6
J6-1
BLU
J6-3
WHI/BLU
J12-1
BLU
J12-3
BLK
RED
BLU
YEL
ORN
J11-1
J5-4
GRN or GRY
RED
BLK
BLK
BLK
RED
BLU
YEL
ORN
J6-1
+
J8-1 J8-2
RED
Regulator
Board
STATION 1
DISPENSE
SWITCH
RED
BLK
COLD
WATER
SWITCH
DISPENSE
STATION
#4
DISPENSE
STATION
#1
DISPENSE
STATION
#2
DISPENSE
STATION
#3
COLD
WATER
SWITCH
ORN
BLK
BRN
BRN
STATIC
SHIELD
YEL
STATIC
SHIELD
DISPENSE
STATIC
SHIELD
DISPENSE
STATIC
SHIELD
DISPENSE
DISPENSE
DISPENSE
PUSH BUTTON OPTION
STATIC
SHIELD
RED
BLK
J1-1
DISPENSE
STATION
#4
YEL
DISPENSE
STATION
#3
J3-1
GRN
ORN
DISPENSE
STATION
#2
J2-1
YEL
STATIC
SHIELD
+
STATION 2
DISPENSE
SWITCH
BLK
DISPENSE
STATION
#1
_
WHI
SMALL
MEDIUM
LARGE
STATIC
SHIELD
STOP/PLUS
STATIC
SHIELD
DISPENSE
LARGE
SMALL
MEDIUM
STOP/PLUS
LARGE
SMALL
MEDIUM
SMALL
STOP/PLUS
LARGE
MEDIUM
STOP/PLUS
STATIC
SHIELD
RED
BLK
_
1
BLK
STATIC
SHIELD
+
YEL
BLK
J11-5
K
RE
ORN
BLK
J5-5
J5-1
J1-3
J1-1
J4-5
J4-1
J3-5
J3-1
J2-5
J2-1
J6-5
_
BL
D
STATION 3
DISPENSE
SWITCH
Models with Membrane Switches
AUXILLARY
CONTROL BOARD
+
BLK
BLK
YEL
ORN
BLU
J15-4
J5-1
RED
BLK
_
STATION 4
DISPENSE
SWITCH
8
J15-1
WHI/BLU
COLD WATER
DISPENSE
SWITCH
BLU
J13-1
WHI/GRN
GRN
12
RED
BLK
J2-6
RED
ORN
12
STATION 3
DISPENSE
J3-1
J3-2
CONTROL P C BOARD
STATION 1
DISPENSE
WHI/VIO
WHI/VIO
WHI
SOL
BRN
GRN
1
RED
VIO
WHI/VIO
STATION 2
DISPENSE
WATER INLET
VALVE
BRN
J1-1
STATION 1
DISPENSE
BLK
REFRIGERATION
SWITCH
WHI
BLK
WHI/BLK
BRN
PUMP
RED/BLK
BLK
RED/BLK
WHI RECIR.
BLK
MOTOR
CONDENSOR FAN
WHI
BLU/BLK
RED/BLK
K1
PUMP
WHI
SOL
BLK
START RELAY
RED
WHI/VIO
2
4
BLU/BLK
COLD WATER
VALVE
WHI/BLK
K1
WHT
J1-5
GRN/YEL-16
COMPRESSOR
S
MOTOR
DISPENSE
LOCKOUT
SWITCH
DISPENSE
LOCKOUT
SWITCH
WHI
BRN
GRN
PROGRAM
SWITCH
WHI
BRN
GRN
BLK
Chassis
Ground
Chassis
Ground
Door
Ground
EARLY MODELS
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
44746.0000C 09/16 © 2011 BUNN-O-MATIC CORPORATION
BLK
RED
YEL
BLU
ORN
J6-1
J11-5
BLU
J6-5
J11-1
BLU
YEL
BRN
DISPENSE
LOCKOUT
SWITCH
LATE MODELS
32
44744.2 092016
SCHEMATIC WIRING DIAGRAM JDF-4S
(Models with Fluorescent Lited Doors)
120V
MODELS
SCHEMATIC WIRING DIAGRAM JDF-4S
230V
MODELS
L1 N
GRN
EMI
FILTER
WHI
A
B
TRANSFORMER
BLU
WHI/BLU
BLU/BLK
L
O
A
D
L
I
N
E
A B
A
BLK
L
I
N
E
B
B
WHI
L
O
A
D
A
BLK
WHI/BLU
BLK
WHI
TRANSFORMER
BLU
BRN
BLU
GRN/YEL
GND L1 N
BLK
WHI
OVERLOAD
1 PROTECTOR
3
2
COMPRESSOR ASSY
C
GRN/YEL-16
COMPRESSOR
S
MOTOR
M
3
WHI
1
COLD WATER
VALVE
WHI/BLK
K1
WHI/VIO
WHT
2
4
WHI
SOL
START RELAY
WHI
REFRIGERATION
SWITCH
RED/BLK
BLK
WATER INLET
VALVE
VIO
WHI/ORN
YEL
STATION 3
DISPENSE
WHI/VIO
STATION 4
DISPENSE
YEL
SOL
YEL
WHI/GRN
GRN
PNK
GRY
BLU
TAN
PNK
BLU
GRY
RED
ORN
WHI/ORN
SOL
TAN
12
J6-1
J6-3
WHI/BLU
BLU
J12-3
BLK
RED
BLU
YEL
ORN
J11-1
BLK
YEL
ORN
BLU
J5-1
J5-4
GRN or GRY
RED
BLK
BLK
BLK
RED
BLU
YEL
ORN
AUXILLARY
CONTROL BOARD
STATION 2
DISPENSE
SWITCH
J11-5
DISPENSE
STATION
#2
DISPENSE
STATION
#3
COLD
WATER
SWITCH
SMALL
MEDIUM
LARGE
STATIC
SHIELD
STOP/PLUS
STATIC
SHIELD
DISPENSE
LARGE
SMALL
MEDIUM
SMALL
STOP/PLUS
MEDIUM
LARGE
STOP/PLUS
LARGE
SMALL
MEDIUM
STOP/PLUS
DISPENSE
STATION
#1
STATIC
SHIELD
DISPENSE
STATION
#2
STATIC
SHIELD
DISPENSE
STATION
#3
STATIC
SHIELD
COLD
WATER
SWITCH
WHI
BLK
BLK
1
Chassis
Ground
2
WHI
1
WHI
BALLAST
BALLAST
BALLAST
GRN
WHI
BLK
STATIC
SHIELD
DISPENSE
STATION
#4
Chassis
Ground
WHI
Chassis
Ground
DISPENSE
STATION
#4
DISPENSE
STATIC
SHIELD
DISPENSE
DISPENSE
DISPENSE
DISPENSE
DISPENSE
STATION
#1
STATIC
SHIELD
1
STATION 1
DISPENSE
SWITCH
PUSH BUTTON OPTION
STATIC
SHIELD
WHI
RED
BLK
STATIC
SHIELD
3
DOOR
(Dual Ballast)
2
YEL
BLK
J5-5
J5-1
J1-3
J1-1
J4-5
J4-1
J3-5
J3-1
J2-5
J2-1
J6-5
1
WHI
ORN
BLK
TRANSFORMER
LOAD
1
Models with Membrane Switches
J6-1
3
DOOR
(Single Ballast)
STATION 3
DISPENSE
SWITCH
J15-4
J12-1
BLK
STATION 4
DISPENSE
SWITCH
8
J15-1
BLU
WHI
BLU
J13-6
WHI/BLU
COLD WATER
DISPENSE
SWITCH
Models with Mechanical Switches
J13-1
WHI/GRN
GRN
LINE
DOOR
HARNESS
WHI
BRN
1
Chassis
Ground
BLK
RED
WHI
WHI
WHI/VIO
t
WATER BATH
THERMISTOR
1
GRN
WHI
BRN
ORN
PUMP
4
WHI
BLK
RED
WHI
WHI
RED
VIO
PUMP
CABINET
THERMISTOR
WHI/BLK
STATION 4
DISPENSE
t
DISPENSE
LOCKOUT
SWITCH
WHI/GRN
WHI/GRN
RED
WHI/BLK
˜
RECTIFIER
+
µ
1
J2-6
RED
ORN
12
STATION 3
DISPENSE
BLK
WHI
FAN
BLK
BLK
RED
ORN
WHI/ORN
SOL
J9-1
J9-2
RED
BLK
BLU
BLU
YEL
GRY
WHI/BLK
GRN
VIO or BRN
STATION 2
DISPENSE
YEL
SOL
J2-1
RED
WHI/RED
J7-1
J7-2
CONTROL P C BOARD
STATION 1
DISPENSE
VIO
WHI/ORN
YEL
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
J3-1
J3-2
GRN
WHI
VIO or BRN
VIO
WHI/ORN
YEL
WHI/VIO
GRN
WHI
RED
1
WHI
SOL
1
ORN
PUMP
J1-5
GRN
WHI/VIO
WHI/VIO
WHI/VIO
RED
VIO
PUMP
BRN
J1-1
RED
STATION 2
DISPENSE
WHI
BLK
WHI/BLK
BRN
PUMP
STATION 1
DISPENSE
RED/BLK
BLK
WHI RECIR.
BLK
K1
WHI
MOTOR
CONDENSOR FAN
RED/BLK
BLK
BLU/BLK
BLU/BLK
120 VOLTS AC
or
230 VOLTS AC
2 WIRE
SINGLE PHASE
DISPENSE
LOCKOUT
SWITCH
BLK
WHI
WHI
39921.0001E 10/16 © 2007 BUNN-O-MATIC CORPORATION
33
44744.2 092016
120V
MODELS
220-230V
MODELS
L1 N
GND L1 N
GRN/YEL
GRN
BRN
BLU
SCHEMATIC WIRING DIAGRAM JDF-4S PUSH/HOLD
(OVAL SWITCH MEMBRANE)
EMI
FILTER
A B
BLK
WHI
WHI/BLU
BLU/BLK
3
2
1
L
O
A
D
L
I
N
E
A
BLK
L
I
N
E
TRANSFORMER
BLU
A B
BLK
L
O
A
D
WHI
BLU
WHI/BLU
A B
B
WHI
TRANSFORMER
Models with Lit Doors
BLK
WHI
OVERLOAD
PROTECTOR
COMPRESSOR ASSY
C
3
1
WHI
WHI/VIO
1
VIO
WHI/ORN
YEL
STATION 3
DISPENSE
WHI/VIO
SOL
STATION 4
DISPENSE
YEL
YEL
SOL
WHI/ORN
TAN
WHI/GRN
GRN
PNK
GRY
BLU
TAN
PNK
BLU
GRY
RED
ORN
WHI/BLU
BLU
J13-1
STATIC
SHIELD
J13-6
DISPENSE
STATION
#1
J15-1
J6-3
J12-1
BLU
J12-3
Push & Hold
Connector
STATIC
SHIELD
J6-1
WHI/BLU
RED
RED
BLK
BLK
BRN
AUXILLARY
CONTROL BOARD
WHI/GRN
GRN
12
WHI
Models with P/H Membrane Switches
STATIC
SHIELD
DISPENSE
STATION
#2
STATIC
SHIELD
DISPENSE
STATION
#3
STATIC
SHIELD
COLD
WATER
SWITCH
J5-1
ORN
J5-6
PUMP
t
WATER BATH
THERMISTOR
J1-1
RED
J1-1
CABINET
THERMISTOR
J1-3
VIO
t
DISPENSE
PUMP
STATION 4
DISPENSE
J3-1
1
J4-1
RED
BLK or ORN
WHI
J2-6
RED
ORN
12
STATION 3
DISPENSE
J9-1
J9-2
Regulator
Board
J2-1
J4-6
SOL
RED
ORN
WHI/ORN
GRY
WHI/BLK
BLK
FAN
J15-1
YEL
J7-1
J7-2
BLK
RED
BLK
+ RED
DISPENSE
STATION
#4
YEL
ORN
BLU
J15-4
J5-1
J11-1
J5-4
J11-5
GRY
RED
BLK
BLK
J8-1
BLK
SOL
STATION 2
DISPENSE
YEL
VIO
WHI/ORN
YEL
J2-1
RED
WHI/RED
CONTROL P C BOARD
STATION 1
DISPENSE
WHI/VIO
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
J3-1
J3-2
J15-7
VIO
WHI/ORN
YEL
WHI/VIO
J3-1
1
+ -
BLK
WHI/VIO
+ RED
J3-6
ORN
+ -
WHI
SOL
1
PUMP
GRN
BLK
RED
WHI
BLK
WHI/BLK
BRN
STATION 2
DISPENSE
J1-1
STATION 1
DISPENSE
WATER INLET
VALVE
BRN
WHI/VIO
PUMP
BLK
REFRIGERATION
SWITCH
J2-1
RED/BLK
RED/BLK
WHI
MOTOR
CONDENSOR FAN
WHI RECIR.
VIO
WHI
SOL
BLK
BLU/BLK
RED/BLK
K1
PUMP
WHI/VIO
J2-6
START RELAY
RED
COLD WATER
VALVE
WHI/BLK
K1
WHT
2
4
BLU/BLK
WHI
M
J1-5
GRN/YEL-16
COMPRESSOR
S
MOTOR
YEL
WHI
BRN
BLK
BLK
1
BLK
WHI
BRN
GRN
PROGRAM
SWITCH
BRN
WHI
BRN
GRN
BRN
BLK
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
DISPENSE
LOCKOUT
SWITCH
Chassis
Ground
Chassis
Ground
Door
Ground
44746.0002 A 11/18 © 2011 BUNN-O-MATIC CORPORATION
34
44744 011619
120V
MODELS
SCHEMATIC WIRING DIAGRAM JDF-4S PORTION CONTROL
(OVAL SWITCH MEMBRANE)
220-230V
MODELS
L1 N
GND L1 N
BRN
BLU
GRN/YEL
GRN
EMI
FILTER
A B
A B
BLK
WHI
TRANSFORMER
L
O
A
D
WHI/BLU
L
I
N
E
A
BLK
L
I
N
E
WHI
L
O
A
D
BLU
BLU/BLK
A B
BLK
BLU
WHI/BLU
B
WHI
TRANSFORMER
BLK
Models with Lit Doors
WHI
OVERLOAD
1 PROTECTOR
3
2
COMPRESSOR ASSY
C
3
1
WHI
1
VIO
WHI/ORN
YEL
SOL
STATION 2
DISPENSE
YEL
YEL
SOL
VIO
WHI/ORN
YEL
RED
ORN
WHI/ORN
RED
ORN
VIO
YEL
WHI/ORN
WHI/VIO
J2-1
STATION 3
DISPENSE
PUMP
STATION 4
DISPENSE
VIO
RED
PUMP
ORN
WHI/VIO
1
VIO
WHI/ORN
YEL
STATION 3
DISPENSE
WHI/VIO
SOL
STATION 4
DISPENSE
YEL
YEL
SOL
WHI/ORN
TAN
WHI/GRN
GRN
PNK
GRY
BLU
TAN
PNK
BLU
GRY
RED
ORN
RED
WHI/RED
J7-1
J7-2
GRY
WHI/BLK
J9-1
J9-2
BLK or ORN
WHI
RED
BLK
RED
BLK
BLK
RED
BLK
+ RED
BLK
FAN
Regulator
Board
J2-1
1
J2-6
RED
ORN
12
RED
J3-1
J3-2
CONTROL P C BOARD
STATION 1
DISPENSE
WHI/VIO
WHI/VIO
+ -
t
J3-1
J1-1
CABINET
THERMISTOR
BRN
WHI/VIO
+ RED
WHI
ORN
+ -
WHI
SOL
BLK
PUMP
GRN
1
RED
WHI
BLK
WHI/BLK
BRN
STATION 2
DISPENSE
WATER INLET
VALVE
BRN
J1-1
STATION 1
DISPENSE
RED/BLK
WHI/VIO
PUMP
BLK
REFRIGERATION
SWITCH
BLK
RED/BLK
WHI
MOTOR
CONDENSOR FAN
WHI RECIR.
VIO
WHI
SOL
BLK
BLU/BLK
RED/BLK
K1
PUMP
WHI/VIO
WHT
START RELAY
RED
COLD WATER
VALVE
WHI/BLK
K1
2
4
BLU/BLK
WHI
M
J1-5
GRN/YEL-16
COMPRESSOR
S
MOTOR
t
WATER BATH
THERMISTOR
J13-1
J13-6
WHI/GRN
GRN
12
WHI/BLU
J6-1
BLU
J6-3
WHI/BLU
J12-1
BLU
J12-3
BLK
RED
YEL
J15-4
Chassis
Ground
J5-1
Door
Ground
BLK
BLK
J11-1
J5-4
J11-5
WHI
BRN
GRN
J8-1 J8-2
BRN
BLK
BLU
ORN
WHI
BRN
GRN
J15-1
YEL
WHI
BRN
BRN
PROGRAM
SWITCH
BLU
1
BLK
BLU
1
DISPENSE
LOCKOUT
SWITCH
Chassis
Ground
J6-5
Models with P/C Membrane Switches
DISPENSE
STATION
#1
DISPENSE
STATION
#2
35
J5-1
STOP/PLUS
J5-6
LARGE
MEDIUM
J1-1
COLD
WATER
SWITCH
STATIC
SHIELD
SMALL
STATIC
SHIELD
DISPENSE
J1-3
J4-1
DISPENSE
STATION
#3
STOP/PLUS
J4-6
LARGE
SMALL
STATIC
SHIELD
MEDIUM
J15-7
J3-1
STOP/PLUS
J3-6
LARGE
SMALL
STATIC
SHIELD
MEDIUM
STOP/PLUS
J2-1
J6-1
LARGE
SMALL
J2-6
44746.0003 A 11/18 © 2011 BUNN-O-MATIC CORPORATION
STATIC
SHIELD
MEDIUM
120 VOLTS AC
or
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
J15-1
AUXILLARY
CONTROL BOARD
Portion Control
Connector
DISPENSE
STATION
#4
44744 011619
1. Hold door cover close enough to inner
door and connect all switch membranes
to the circuit board before door placement
onto the inner door assembly.
2. Place door cover over inner door.
3. Secure the door cover using the provided 5 screws.
4. Place refrigeration switch in the OFF position.
5. Connect water supply to machine. (See
Plumbing Requirements)
6. Connect power supply to machine. (See
Electrical Requirements)
7. Install bath tank fill tube over a nozzle as
shown.(See Initial Fill)
8. Place the program switch in the ON position.
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.
P3588
P3591
11. Insert juice containers as shown.
36
12. Proceed to page 7 in the Operating and
Installation manual for calibration instructions and charts.
44744.2 062912
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