Bunn JDF-2 S, JDF-4 S Owner's Manual

JDF-2S

JDF-4S

Silver Series®

INSTALLATION & OPERATING GUIDE

BUNN-O-MATIC CORPORATION

280 INDUSTRIAL PARKWAY SOUTH,

AURORA, ONTARIO, L4G 3T9.

PHONE: [phone] FAX: [phone]

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 1-800-263-2256.

44744.7002B 08/12 ©2012 Bunn-O-Matic Corporation

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY

Bunn-O-Matic Corporation of Canada (“Bunn”) warrants equipment manufactured by it as follows:

1)Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital) - 1 year parts and 1 year labour.

2)All other equipment - 2 years parts and 1 year labour plus added warranties as specified below:

a)Electronic circuit and/or control boards - parts and labour for 3 years.

b)Compressors on refrigeration equipment - 5 years parts and 1 year labour.

c)Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts and labour 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 judgement, 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 [phone] or by writing to 280 Industrial Parkway South, Aurora, Ontario, L4G 3T9. 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, CONDITION, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY, MERCHANTABLE QUALITY 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 defective equipment is covered by warranty, Bunn, at its exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts and/or labour (during the applicable parts and labour 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, consequential or punitive damages.

RETURN POLICY

CONTACT PLANT FOR RETURN MATERIAL AUTHORIZATION. ALL RETURNS MUST

BE AUTHORIZED BY BUNN-O-MATIC AND ARE SUBJECT TO A RETURN CHARGE.

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, 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, Velocity Brew, 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, Daypart, Digital Brewer Control, Nothing Brews Like a BUNN, Pouring Profits, Signature Series, Tea At Its Best, The Horizontal Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation.

2	44744.2 030912

CONTENTS
Warranty.........................................................................................................................	2
User Notices...................................................................................................................	3
Initial Set-Up & Electrical Requirements.........................................................................	4
Plumbing Requirements.................................................................................................	4
CE Requirements............................................................................................................	4
Door Cover Installation...................................................................................................	5
Plumbing Hookup...........................................................................................................	6
Initial Fill.........................................................................................................................	6
Loading........................................................................................................................	15
Priming.........................................................................................................................	15
Operating Controls.........................................................................................................	8
Dispenser Use..............................................................................................................	10
Portion Control Option.................................................................................................	10
Cleaning.......................................................................................................................	12
Adjustments & Optional Settings..................................................................................	14
Function Lists...............................................................................................................	18
Troubleshooting...........................................................................................................	20
Coolant Diagram...........................................................................................................	26
Schematic Wiring Diagram...........................................................................................	27
Quick Setup Guide........................................................................................................	29

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.

This equipment must be installed to comply with Canadian Plumbing Codes and applicable health and safety regulations. For models installed outside Canada, comply with the applicable Plumbing /Sanitation Code.

Cet équipement doit être installé conformément au code Canadien de plomberie et aux règlements de santé et de sécurité qui s’ appliquent. Les modèles destinés à être installés ailleurs qu’au Canada doivent respecter les codes de plomberie et d’hygiène de la localité.

00656.7000

	WARNING	AVERTISSEMENT
	• DO NOT OVERLOAD CIRCUIT.	• NE PAS SURCHARGER LE CIRCUIT.
		• TOUJOURS METTRE LE BOÎTIER À LA MASSE.
	• ALWAYS ELECTRICALLY GROUNDTHE CHASSIS.
	• DO NOT DEFORM PLUG OR CORD.	• NE PAS DÉFORMER LA FICHE OU LE CORDON.
		• SE CONFORMER AUX CODES NATIONAL OU
	• FOLLOW NATIONAL AND LOCAL
		LOCAL D'ÉLECTRICITÉ.
	ELECTRICAL CODES.
		• GARDER LES PRODUITS COMBUSTIBLES À
	• KEEP COMBUSTIBLES AWAY.
		DISTANCE.
	FAILURE TO COMPLY RISKS EQUIPMENT	TOUT MANQUEMENT À SE CONFORMER À CES
		DIRECTIVES PEUT ENTRAINER DES DOMMAGES
	DAMAGE, FIRE OR SHOCK HAZARD.
		À L'ÉQUIPEMENT OU PRODUIRE DES DANGERS
		D'INCENDIE OU D'ÉLECTROCUTION.
	READ THE ENTIRE OPERATING MANUAL INCLUDING	VEUILLEZ LIRE LE MANUEL DE FONCTIONEMENT EN
		ENTIER, Y COMPRIS LES LIMITES DE GARANTIES ET
	THE LIMIT OF WARRANTY AND LIABILITY BEFORE
		RESPONSABILITÉS,AVANT D’ACHETER OU
	BUYING OR USING THIS PRODUCT.
		D'UTILISER LE PRÉSENT PRODUIT.
	THIS EQUIPMENT IS ENERGIZED AT ALL TIMES UNLESS	L' ÉQUIPEMENT EST TOUJOURS SOUS TENSION LORSQU'IL
	ELECTRICALLY DISCONNECTED.	N'EST PAS DÉBRANCHÉ.

00986.7000B 01/10 ©2007 Bunn-O-Matic Corporation

00986.7000

WARNINGAVERTISSEMENT

HAZARDOUS VOLTAGE

TENSION DANGEREUSE

DISCONNECT FROM POWER

SOURCE BEFORE REMOVING!

DÉCONNECTER DE LA

SOURCE D'ALIMENTATION

AVANT D’ENLEVER !

12559.7103

Moving Parts.
		Risk Of Electrical Shock.
Do not operate		Disconnect power
unit with this		before servicing unit.
panel removed.
AVERTISSEMENT
Pièces amovibles		Risk de choc électrique.
Ne pas utiliser		Debrancher le cordon
l'appareil lorsque		d'alimentation de
le panneau est		l'appareil avant de faire
enlevé.		l'entretien.

27442.7000

CHARGE

Type R134A, Amount 10 oz (283 gm) Design Pressures: High 335 Low 88

CHARGE

Type R134A, Quantité 10 oz (283 gm) Pression requise: Haute 335 Basse 88

CHARGE

Type R134A, Amount 9 oz (255 gm) Design Pressures: High 255 Low 36

CHARGE

Type R134A, Quantité 9 oz (255 gm) Pression requise: Haute 255 Basse 36

33461.7000	33461.7001
JDF-4S	JDF-2S

3	44744.2 082112

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.

This equipment must be installed to comply with the National Plumbing Code of Canada and the Canadian Food Inspection Agency. For models installed outside Canada, you must comply with the applicable Plumbing/Sanitation Code for your area.

4	44744.2 062912

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	JDF-4S	P3577
2. On Portion Control models, connect membrane		3. Install door cover
switches to Door Circuit Board.

JDF-4S Shown	JDF-2S & JDF-4S	P3578

4. Secure the door cover using 5 screws provided.

JDF-2S	P3579	JDF-4S	P3840

5	44744.2 062912

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.

	1
FIG 1 Plumbing Connections - JDF-2S	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.

P3581-1	P3846
FIG 3 Initial Fill Hose - JDF-2S	FIG 4 Initial Fill Hose - JDF-4S

6	44744.2 062912

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.

P3582	P3842
FIG 5 Initial Fill Connection - JDF-2S	FIG 6 Initial Fill Connection - JDF-4S

7	44744.2 082112

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.

		P3583	P3844
	FIG 9 Product Dispense Switches - JDF-2S		FIG 10 Product Dispense Switches - JDF-4S

8	44744.2 082112

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

FIG 12 Product Dispense Switches - JDF-4S

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 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

9	44744.2 062912

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. 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 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" three times.

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.

10	44744.2 062912

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.

	P3585	P3845
FIG 15 Temperature LEDs JDF-2S
		FIG 16 Temperature LEDs JDF-4S
(Early Models)

FIG 15A Temperature LEDs JDF-2S

(Late Models)

11	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), 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.

12	44744.2 062912

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: Check water level in ice bath. Top off if needed.

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]) 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.

13	44744.2 062912

ADJUSTMENT & OPTIONAL SETTINGS

Water Flow Testing and Adjustment

NOTE: 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 ap-

propriate 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.					P3586
	4. Measure the water dispensed.
				FIG 17 Adjusting Water Flow
	5. Adjust the water flow rate Fig 17, (clockwise to increase flow rate;
					Using 1/4" allen wrench
	counterclockwise to decrease flow rate) to the corresponding product
	mix ratio as follows:
	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			*
	4+1		Orange Juice			11.8%
			Pineapple Juice			12.8%
		*4.0 fl. oz (118 ml)	Cranberry Fruit Cocktail			14.0%
			Grapefruit Juice			10.6%
	5+1	per 3-second test	Lemonade
			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 %.

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.

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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.

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.

15	44744.2 082112

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.

NOTE: 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 Pump Speed Adjustment section.

7.Place the Program switch back into the OFF position.

3 second				Ratio Target
water dispense
in ounces		2:1		3:1		4:1		5:1		6:1		7:1		8:1		9:1		10:1		11:1		12:1
1.5		2.25		2.00		1.88		1.80		1.75		1.71		1.69		1.67		1.65		1.64		1.63
1.75		2.63		2.33		2.19		2.10		2.04		2.00		1.97		1.94		1.93		1.91		1.90
2.0		3.00		2.67		2.50		2.40		2.33		2.29		2.25		2.22		2.20		2.18		2.17
2.25		3.38		3.00		2.81		2.70		2.63		2.57		2.53		2.50		2.48		2.45		2.44
2.5		3.75		3.33		3.13		3.00		2.92		2.86		2.81		2.78		2.75		2.73		2.71
2.75		4.13		3.67		3.44		3.30		3.21		3.14		3.09		3.06		3.03		3.00		2.98
3.0		4.50		4.00		3.75		3.60		3.50		3.43		3.38		3.33		3.30		3.27		3.25
3.25		4.88		4.33		4.06		3.90		3.79		3.71		3.66		3.61		3.58		3.55		3.52
3.5		5.25		4.67		4.38		4.20		4.08		4.00		3.94		3.89		3.85		3.82		3.79
3.75		5.63		5.00		4.69		4.50		4.38		4.29		4.22		4.17		4.13		4.09		4.06
4.0		6.00		5.33		5.00		4.80		4.67		4.57		4.50		4.44		4.40		4.36		4.33
3 second				Ratio Target
water dispense
in milliliters		2:1		3:1		4:1		5:1		6:1		7:1		8:1		9:1		10:1		11:1		12:1
44.4		66.5		59.1		55.5		53.2		51.8		50.7		49.9		49.3		48.8		48.4		48.1
51.8		77.6		69.0		64.7		62.1		60.4		59.1		58.2		57.5		56.9		56.5		56.1
59.1		88.7		78.9		73.9		71.0		69.0		67.6		66.5		65.7		65.1		64.5		64.1
66.5		99.8		88.7		83.2		79.8		77.6		76.0		74.9		73.9		73.2		72.6		72.1
73.9		110.9		98.6		92.4		88.7		86.3		84.5		83.2		82.1		81.3		80.7		80.1
81.3		122.0		108.4		101.7		97.6		94.9		92.9		91.5		90.4		89.5		88.7		88.1
88.7		133.1		118.3		110.9		106.5		103.5		101.4		99.8		98.6		97.6		96.8		96.1
96.1		144.2		128.1		120.1		115.3		112.1		109.8		108.1		106.8		105.7		104.8		104.1
103.5		155.3		138.0		129.4		124.2		120.8		118.3		116.4		115.0		113.9		112.9		112.1
110.9		166.4		147.9		138.6		133.1		129.4		126.7		124.8		123.2		122.0		121.0		120.1
118.3		177.4		157.7		147.9		141.9		138.0		135.2		133.1		131.4		130.1		129.0		128.1

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ADJUSTMENT & OPTIONAL SETTINGS (cont)

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.

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.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.

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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	3
4	5
FIG 18 JDF-2S	P3585
(Early Models)

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