INSTALLATION & OPERATING GUIDE
BUNN-O-MATIC CORPORATION
PHONE: (217) 529-6601 FAX: (217) 529-6644
To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and
manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
54261.0001A 09/17 ©2017 Bunn-O-Matic Corporation
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
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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54261.0001 031314
CONTENTS
Warranty ........................................................................................................................ 2
User Notices .................................................................................................................. 4
North American Requirements ....................................................................................... 5
Plumbing Requirements ................................................................................................ 6
Initial Set-Up .................................................................................................................. 6
Nitrogen Gas Hook Up ................................................................................................... 6
Electrical Requirements ................................................................................................. 7
Product Concentrate Requirements ............................................................................... 7
Set Up Instructions ........................................................................................................ 8
Door Cover Installation ................................................................................................ 10
Plumbing Hookup ........................................................................................................ 11
Initial Fill ...................................................................................................................... 11
Operating Controls ....................................................................................................... 12
Cleaning & Preventive Maintenance ............................................................................. 14
Adjustments & Optional Settings ................................................................................. 16
Loading ........................................................................................................................ 17
Priming ........................................................................................................................ 17
Fault Codes .................................................................................................................. 19
Troubleshooting ........................................................................................................... 20
Coolant Diagram .......................................................................................................... 31
Schematic Wiring Diagram .......................................................................................... 32
INTRODUCTION
The cold draft dispenser and door have been shipped in one complete package (the door is in its own package inside the larger box). To prevent damage, the door should remain in its individual packaging until it is ready
for installation. This package also includes the drip tray and grate, and the tapper handles for mounting onto the
door of the dispenser. Save all packaging so that these items can be returned to Bunn-O-Matic.
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USER NOTICES
Carefully read and follow all notices on the equipment and in this manual. They were written for your protec-
tion. All notices are to be kept in good condition. Replace any unreadable or damaged labels.
As directed in the International Plumbing Code of the
International Code Council and the Food Code
Manual of the Food and Drug Administration (FDA),
this equipment must be installed with adequate
backflow prevention to comply with federal, state
and local codes. For models installed outside the
U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.
00656.0001
27442.0000
SET N2 PRESSURE
125 PSIG
00986.0002
CHARGE
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)
33461.0001
41509.0006
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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 95°F (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 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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INITIAL SET-UP
The cold draft dispenser dimensions are 10"W x 28.4"D x 34"H. The dispenser is designed for indoor use only, in ambient temperatures ranging from 50°F to 90°F and 65% relative humidity environments. Avoid locating the machine where it
will be subject to direct sunlight or exposed to other external heat sources. Install the dispenser on a counter that is able to
support 150lbs (68 KG) of weight from the machine. Allow a minimum clearance of 6” at the back and top of the dispenser
for proper air circulation. Leave some space so the dispenser can be moved for cleaning. For optimum performance, do
not let warm air from surrounding machines blow on the dispenser.
PLUMBING REQUIREMENTS
This dispenser must be connected to a FILTERED WATER source with operating pressure between 30 and 90 psi
(0.207 and 0.621 mPa) dynamic. This water source must be capable of producing a minimum flow rate of 2 fluid ounces
(88.7 milliliters) per second. A shut off valve should be installed in the line that will supply the dispenser. If installing a
water filter, it should be installed as close as possible to the inlet of the machine, but downstream of the shut-off valve.
The machine is supplied with a 3/8” (9.52 mm) male barb fitting.
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. 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.
If the water pressure is below 30 psi (dynamic) pressure, a booster pump (P/N 41815.1000) is required at the water
line. When installing a water filter and a booster pump, install the water filter in between the booster pump and the machine.
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.
NITROGEN GAS HOOK-UP
An N2 high-pressure tank must also be available prior to installation (customer supplied). There must be sufficient space for the cylinder and should be properly secured with a stand or chain to comply with local safety
codes.
The cold draft dispenser will need to be connected to an external Nitrogen (N2) source. This will require an N2
pressure regulator to be installed at the tank with a gas supply line to the dispenser. The external N2 supply connection is a ¼” MFL located on the back of the machine.
The cold draft dispenser may also need connected to a nitrogen generator. The supply pressure from the generator to the machine should be set to 125 psi.
NOTE - If the customer is supplying their own regulator, the regulator should have a working pressure up to 130
psi. 6-feet of dedicated N2 gas tubing line is required to connect the N2 regulator to the machine. The gas tubing
line must be rated at least 130 psi and requires a ¼” FFL fitting at the end of the line to connect to the machine.
NOTE: For best drink consistency and nitrogen infusion, the nitrogen supply pressure to the machine should be
set to 125 psi and maintain +/-10 psi from the 125 psi pressure set point.
NOTE - To ensure safe N2 operation and compliance with local safety codes, the N2 cylinder must be properly
secured. A strap or chain should be used as a means of properly securing the cylinder.
NOTE - When the supply nitrogen pressure drops below 100 psi, a red light indicator will flash at the top of the
dispenser door.
NOTE - This dispenser is not designed to accept CO2 gas.
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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 receptacle must be within 6 feet of the machine. The mating connector is
NEMA 5-15R.
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.
PRODUCT CONCENTRATE REQUIREMENTS
The dispenser works with a range of concentrates. Some dispensers will dispense a range of 4:1 to 12:1 and
some dispensers will dispense a range of 10:1 to 32:1. Comfirm you have the correct dispenser for the concentrate you plan to use.
NOTE - Some concentrates may have different ratio capacities in the dispenser. Ratio capability should be confirmed on concentrates before installation.
Only a few product concentrate suppliers manufacture BIBs that fit directly into our dispenser. If you are
working with BIB concentrates that have a Scholle fitting or are packaged in jugs, we recommend you pour the
concentrate into our refillable containers (P/N 39302.0000).
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SET-UP INSTRUCTIONS
1. After connecting to a filtered water source (see PLUMBING REQUIREMENTS), turn on the water supply to
the dispenser.
2. Connect the Nitrogen source to the dispenser, but DO NOT turn on the Nitrogen supply or open the tank’s
valve until specified.
3. Connect the LED lighting from the door cover to the door. Install the door using the 5 mounting screws
provided. (See DOOR COVER INSTALLATION)
4. Confirm that the dispense switch (located in upper right corner of door when open) is in the OFF position.
5. Connect the switches from the handle set to the wire harness on the door (note right and left connections).
Install the handle set using the two screws on the bottom side of the handles. Snap the plug in the hole on
the door under the handles.
CAUTION: Improper electrical installation will damage electronic components.
• An electrician must provide electrical service as specified.
• Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
Plug the dispenser into a 120V power source. Set the dispense switch to the ON position.
The water bath will fill automatically when dispenser is provided power and water, program mode OFF and dispense switch ON.
NOTE: There will be a flashing red LED light at the top center of the door’s artwork. This light indicates there is
currently no Nitrogen coming into the dispenser (via a pressure detect switch). This switch will turn On when
pressure reaches <100 psi and turn Off when pressure reaches >115 psi.
Do not open the nitrogen tank valve until instructed to do so.
6. Remove the drip tray and splash panel.
7. Once the water bath is full, turn the water bath pump/compressor switch to ON.
• It will take a full 4 hours to build the ice bank required for optimal dispenser performance. During this
time, some further trickling from the water bath into the drip tray is expected due to expansion caused
by the ice bank formation.
8. Install dispense nozzles and drip tray. The nozzle with the Nitro Stout Insert goes in the LEFT dispense station. The nitro stout insert’s function is to provide back pressure while dispensing Nitro Coffee and aides in
creating the “cascading” or surging effect in the dispensed drink.
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54261.0001 090817
9. Load product into both stations of the dispenser.
Prime each side with product by pulling the tapper
handle until you see finished product flowing from the
dispense nozzle.
10. Dispense a drink at each station and check the Brix
by using the Ratio Dispense Test or the Brix Dispense
Test (see Appendix A).
• The first dial (left-most potentiometer on the
board) will adjust pump speed for the LEFT dispense station. The second dial (second from the
left) will adjust pump speed for the RIGHT dispense station. Best practice is to start with the
pump dial set to 9:00 position.
11. Make adjustments to pump speed to achieve the de-
sired Brix target of the product.
12. Turn on the Nitrogen gas supply by opening the valve
on the tank and setting the tank’s output pressure to
125 psig. For best drink consistency and nitrogen infusion, the nitrogen supply pressure to the machine
should be set to 125 psi and maintain +/- 10 psig from
the 125 psi pressure set point. Verify that the regulator’s output gauge reads 125 psig. If the regulator has
a shut-off valve, move the regulator’s valve handle to
the open position (the handle should be parallel to the
gas supply line).
13. Dispense a drink on the left side dispense station to
prime Nitrogen into the system.
14. Reinstall the splash panel. The dispenser will take be-
tween 4-6 hours to completely build the ice bank.
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DOOR COVER INSTALLATION
1. Install door cover by first plugging the LEDs from
the door into the black connectors with RED/BLACK
wires
3. Connect tapper handle switches to harness in
door. NOTE: Connect left switch to blue wires and
right switch to red wires.
2. Install door cover and secure the door cover using 5 screws provided.
4. Slide tapper handle into door assembly.
5. Mount tapper handles through bottom of door as
shown using the screws provided.
6. Install black hole cover as shown.
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PLUMBING HOOKUP
The water 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.
Water Hook Up
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. Connect dispenser to the power source.
4. The dispenser is equipped with an automatic bath fill circuit. When water is supplied and power is applied,
the water will automatically fill if program switch is OFF and dispense switch is ON.
5. It is okay to turn ON the compressor water bath switch as soon as the bath starts filling.
6. Replace the splash panel and drip tray.
7. 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.
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OPERATING CONTROLS
Compressor/Water Bath 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.
Refrigeration Switch
Product Dispense Tap Handles
Pulling and holding tap handle will initiate product flow from the respective nozzle; releasing the tap handle will
stop the flow.
Product Dispense Handles
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OPERATING CONTROLS (Continued)
Dispense Lockout Switch
This switch is located inside the door at the top. It is
used to turn ON and OFF the Dispensing function. It is
also used for fill procedures.
Program Switch
This switch is located near the main control board next
to the refrigeration switch.
Dispense Lockout Switch
13
Program Switch
54261.0001 090817
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. Wipe down the internal compartment of the cabinet and the concentrate container’s inlet adapter(s) area.
3. Close the door, place an empty container under the dispensing nozzle(s).
4. Dispense from each station until clear water flows from the dispense nozzle(s).
5. Open dispenser door and reconnect all product containers.
Daily: Parts Washing
1. Remove and wash the dispense nozzle(s), Nitro Stout Insert, 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. Remove Nitro Stout Insert in nitro nozzle for cleaning. Replace before reinstalling nozzle.
3. Wipe splash panel, areas around dispense nozzle(s), and refrigerated compartment with a clean, damp cloth.
4. Use brush and a mild detergent solution to clean inside dispense area where dispense nozzles are removed.
Rinse and wipe thoroughly.
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° F (60° C). Load the containers of hot water into the dispenser (just like concentrate).
3. Place an empty container under the dispense nozzles.
4. Pull and hold the tapper handles 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 Nitro Stout Insert. Run under hot tap water to remove excess product
build-up.
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° F (48.9° C) water to ensure 100 ppm of available chlorine.
8. Place nozzle(s) in a separate 1-quart container of sanitizing solution and mix thoroughly. Allow the parts to
soak for 2 minutes.
9. Clean the dispense nozzle receptacle (dispense valves) with the sanitizing solution and a soft bristle brush.
10. Clean the concentrate container’s inlet adapter(s) using the sanitizing solution and a soft bristle brush. Discard
all remaining sanitizing solution.
11. Place the nozzle(s) back in their dispense stations making sure to place the Nitro Stout Insert back in the
LEFT dispense nozzle.
12. Fill approximately 128 ounces (3.8 L) of clean sanitizing solution into clean, empty concentrate container(s).
Do not re-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.
14. Dispense sanitizing solution through each station for 1 minute. Allow to soak for 5 minutes. Dispense from
each station for 2 minutes.
NOTE – The machine will allow only one station to dispense at a time. Alternating stations is required for these
steps.
15. When the above cycle is complete, remove the sanitizing solution and replace with concentrate.
16. At each station, pull and hold the dispense tapper handles until product appears. Dispense one 12 ounce
(354.9 ml) glass of finished product and discard.
17. Wipe internal and external surfaces with a clean, damp cloth.
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CLEANING (cont)
Weekly: Clean Condenser Coils and Air Filter
1. 1. Locate the removable air filter at the back of machine and remove to clean in warm soapy water.
2. Use a soft bristle brush to clean the build-up of dirt in the condenser.
Annually: Replace Pump Tubing
1. Open dispenser door.
2. Remove all product containers and place them in a refrigerated (35-40 degrees F [1.6-4.4 degrees C]) envi-
ronment. Disconnect all connections to ambient products from the bottle adapter.
3. Rinse all dispense stations using steps outlined in “DAILY RINSE PROCEDURE”.
4. Disconnect dispenser from power source.
5. Remove the dispense platform cover.
6. Disconnect the dispense platform water line(s) from the supply line inside the refrigerated cabinet and dis-
connect the wiring connection(s) from the cabinet receptacle(s).
7. Remove the mounting screw(s) securing the dispense platform(s) to the cabinet .
8. Pull the dispense platform(s) completely out of the cabinet and place it on a flat work surface.
9. Close the dispenser door.
10. Remove the 4 screws securing the pump head.
11. Gently pull the pump head apart.
12. Gently pull the pump tube from around the pump’s rotor.
13. Release the clamps securing the old pump tubing to the plastic elbows.
14. Pull the plastic elbows from the old pump tubing, and discard the old pump tubing.
15. Insert the plastic elbows into the new pump tubing and secure it with the clamps.
NOTE: Obtain new parts using the Illustrated Parts Catalog listed at www.bunn.com.
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.
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ADJUSTMENT & OPTIONAL SETTINGS
Water Flow Testing and Adjustment - Still Side Only
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 appropriate dispense nozzle. Place
the Program switch in the ON position.
2. Pull and release the desired tap handle three times.
3. The selected position will dispense water (no concentrate)
only for 3 seconds.
4. Measure the water dispensed. Suggested target is 133 ml
(4.5 oz) per 3 seconds flow rate.
5. Adjust the water flow rate Fig 17, (counterclockwise to
increase flow rate; clockwise to decrease flow rate) to the
corresponding product mix ratio.
6. Repeat steps 1 through 5 as necessary until the correct
water flow rate is achieved.
7. Place the Program switch back into the OFF position.
Adjusting Water Flow
Using Flat Blade Screwdriver
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.
NOTE: 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.
NOTE: If splashing occurs while dispensing, reduce water flow rate. Then re-adjust pump speed to achieve proper ratio/
brix target.
NOTE: Use the two left most knobs to make pump speed adjustments. Left most being station #1 (left side dispense) and
second from left being station #2 (right side dispense).
6. Reinstall the splash panel and drip tray and reconnect the dispenser to the power source.
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LOADING
Frozen Concentrates
NOTE: Loading frozen concentrate in the product cabinet may cause damage to the machine. This damage is
not covered by warranty.
1. Thoroughly mix the thawed concentrate by vigorously shaking the product container.
2. Open the dispenser door.
3. 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.
4. Place the product container in the desired position and press it firmly into the bottle adapter opening.
5. Open the vent hole in the product container. (If required)
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, may produce an
“out of ratio” 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.
NOTE: Although we can dispense ambient concentrates, the Nitro Coffee cascade performance may be reduced
due to ambient product mixing with the cold nitrogenated water.
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.
Pull and hold the tap handle, until concentrate dispenses from the dispense nozzle.
Note: This may take several seconds, depending on the installation and set pump speed.
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ADJUSTMENT & OPTIONAL SETTINGS (cont)
Ratio Dispense Test Set Up Procedure
1. Place the Program switch in the ON position.
2. Water flow rate should be factory pre-set to 133 ml (4.5 oz) per 3 second dispense. To verify, place a graduated measuring
cylinder under the dispense nozzle, pull and release the tapper handle 3 times. The dispenser will then dispense an amount
of water for 3 seconds. Record the water output for later reference on each dispense head.
3. Pull and release the tapper handle 6 times. The dispenser will then dispense an amount of concentrate for 3 seconds.
• For best results, discard the first two samples before recording output. Repeat the same practice after every adjustment.
4. Record the amount dispensed. NOTE – Measuring in milliliters is required for accuracy.
5. Refer to the Ratio chart below to confirm proper volumes for desired ratios. Concentrate amounts for each ratio are highlighted in yellow under the ratio number.
6. To increase or decrease the product output, refer to Step 10 of SET-UP INSTRUCTIONS.
7. Place the Program switch back to the OFF position.
Ratio Target
3 sec. water
dispense in
milliliters
4+1 5+1 6+1 7+1 8+1 9+1 10+1 11+1 12+1 13+1 14+1
133 33.3 26.6 22.2 19.0 16.6 14.8 13.3 12.1 11.1 10.2 9.5
15+1 16+1 17+1 18+1 19+1 20+1 21+1 22+1 23+1 24+1 25+1
133 8.9 8.3 7.8 7.4 7.0 6.7 6.3 6.0 5.8 5.5 5.3
26+1 27+1 28+1 29+1 30+1 31+1 32+1 33+1
133 5.1 4.9 4.8 4.6 4.4 4.3 4.2 4.0
Brix Dispense Test Set Up Procedure
1. 1. Load the concentrate in the dispense station. Dispense until the finished drink is flowing from the dispense nozzle.
2. Dispense a typical cup size and discard.
3. Dispense another sample and measure the Brix using a refractometer. Best practice is to allow samples dispensed with
nitrogen to settle before taking a measurement.
• Once a sample is placed on the refractometer, wait until it reaches temperature to determine current Brix measurement
(about 1-2 minutes).
• Many refractometers include a thermometer on board and will help indicate that the sample is at room temperature and
ready to be tested. (See refractometer manual for more details on usage.)
4. To increase or decrease the product output, refer to Step 10 of SET-UP INSTRUCTIONS.
5. Continue making pump speed adjustments and measuring samples until desired Brix target is reached.
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 inside the door at the top of the dispenser.
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 and actuates water bath
autofill.
18
54261.0001 090817
DISPENSER FAULT CODES
NOTE: All LED flashing sequences include a 3-second delay between flash codes.
1. Bath Sensor Open – 1 flash of the circuit board mounted bath LED’s and 1 flash of the door mounted blue
LED’s.
Possible Cause(s): Bath sensor not connected to the main board. Bath sensor failed.
2. Bath Sensor Shorted – 2 flashes of the circuit board mounted bath LED’s and 2 flashes of the door mounted
blue LED’s.
Possible Cause(s): Bath sensor failed. Shorted bath sensor wires.
3. Cabinet Sensor Open – 1 flash of the circuit board mounted cabinet LED’s and 3 flashes of the door mounted
blue LED’s.
Possible Cause: Cabinet sensor not connected to the main board.
4. Cabinet > 50 degrees for 4 hours – Circuit board mounted cabinet LED’s will flash slowly. 4 flashes of the
door mounted blue LED’s. This fault will stop all dispense functions.
Possible Cause(s): Cabinet fan not running. Water bath pump not running. Check compressor/WB pump
switch to confirm it is On. Water bath is low.
Troubleshoot by powering the dispenser down and back up to reset the fault.
5. Left Concentrate Pump Stalled - 5 flashes of the door mounted LED’s.
This fault will reset itself after 5 seconds.
Possible Cause: Peristaltic pump failed or stalled.
6. Right Concentrate Pump Stalled – 6 flashes of the door mounted LED’s.
This fault will reset itself after 5 seconds.
Possible Cause: Peristaltic pump failed or stalled.
7. Refill Fault – 7 flashes of the door mounted LED’s if the bath has not reached proper level after 4 minutes.
Dispenser will not allow additional bath filling until this fault is reset.
Possible Cause(s): Water line to machine turned off. Water not connected to dispenser. Water flow/pressure
source too low. Bath fill valve failed.
Troubleshoot by powering the dispenser down and back up to reset the fault. Bath will start filling 30 sec-
onds after power up.
Fault Code LEDs
19
54261.0001 090817
TROUBLESHOOTING
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered.
If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.
• Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
• All electronic components have 120-240 volt ac and low voltage dc potential on their terminals. Shorting of terminals
or the application of external voltages may result in board failure.
• Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an intermittent
condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp.
• Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for
more than ten minutes without a supply of water.
• The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid
twists and kinks in the tubing.
• Make certain that all plumbing connections are sealed and electrical connections tight and isolated.
WARNING – • Exercise extreme caution when servicing electrical equipment.
• Unplug the dispenser when servicing, except when electrical tests are specified.
• Follow recommended service procedures.
• Replace all protective shields or safety notices.
PROBLEM
Cold Water Circulation
Dispense stations not working.
Note: Cooling failure or excessive
cabinet temperatures for more
than 4 hours will result in dispense
lockout or no dispense.
Note: Reset fault/timer by unplugging unit.
Dispense nozzle dripping/won't stop
dispensing.
PROBABLE CAUSE
1. Cabinet cooling fan.
2. Bath recirculation pump.
3. Restricted water flow to cabinet
water coil and bath.
1. Juice residue causing oring on
dispense nozzle to lose vacuum.
REMEDY
Replace fan (24vdc).
Note: Fan receives power when the
dispenser is powered.
A) If not running, check refrigeration switch and wiring for proper
continuity.
B) Check for 120V or 230V AC at
pump. Replace pump.
Check for kinked hose.
A) Remove dispense nozzles and
stout insert. Clean nozzles and oring
in mild detergent solution.
B) Use soft bristle brush and mild
detergent solution to clean dispense
valve area that dispense nozzles are
seated.
20
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Refrigeration
Dispense stations not working.
Note: Cooling failure or excessive
bath and cabinet temperatures for
more than 4 hours will result in
dispense lockout or no dispense.
PROBABLE CAUSE
1. Compressor ON/OFF switch.
2. Dirty condenser filter or fins.
3. Condenser fan not running.
4. Compressor relay not activating.
REMEDY
Check for "ON" position or no continuity - replace switch.
Clean filter and fins or replace condenser filter. (Filter not supplied on
some machines).
A) Check for 120V or 230V AC. Replace fan motor or check fan blades
for obstructions.
B) Check compressor LED on circuit
board. If ON, relay coil should have
power (120 or 230 VAC).
Check compressor relay coil for 120
or 230vac.
NOTE: Always check power with
coil attached. If compressor LED
is ON and no 120 or 230vac - replace board. If yes, 120 or 230vac
- replace relay.
Note: Relay contacts are normally
open.
5. Compressor not running.
6. Compressor running and not
cooling.
7. Low water bath or bath fill valve
failed.
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.
Check Dispense switch is set to ON
and sight gauge shows full water
bath. If sight gauge is low, press
Dispense switch to OFF. Wait a few
seconds. Press Dispense switch
to ON. Bath will automatically start
filling water bath after 30 seconds.
21
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Dispenser Locked Out
Dispense stations not working.
Cooling system failure.
Dispense station not working
All stations dispense concentrate
only
PROBABLE CAUSE
1. Check Dispense Lockout switch.
1. Refrigeration or cold water recirculation system.
1. Dispense Lockout switch set to
OFF position.
2. Dispense switch failed
Main water supply
REMEDY
(A) Set switch to ON position.
(B) Check switch and harness for
proper continuity.
Check all previous items that pretain to refrigeration or cold water
recirculation
Place switch in ON position.
Check switch and harness for proper
continuity.
Check for ON position.
Frozen bath
Inlet water valve failed
A) Compressor relay/contacts
shorted - replace relay.
B) Recirculating pump - replace or
check for kinked flex line.
A) Check for 120V or 230V power
when dispensing. If yes, replace
valve. If no, check harness for
proper continuity. Then replace
circuit board if needed.
22
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Dispense station
concentrate only
Dispense station
water only
PROBABLE CAUSE
Water solenoid
Concentrate out
Product pump not pumping
Pump not turning
REMEDY
Replace solenoid (24vdc) or check
wire connection between water
valve and main control board.
Replace refill concentrate container
or BIB
Check for proper counterclockwise
rotation of pump rollers. If counterclockwise, replace pump tubing.
If clockwise, wire connection to
pump is reversed. Switch wires on
terminals.
A) Check speed setting on circuit
board and increase speed (turn
clockwise)
B) Check for d.c. power to pump
motor. If yes, replace motor assy. If
no, check harness for proper continuity. Then replace circuit board
if needed.
23
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Water leak filling drip tray or around
dispense deck area
Water leaking beneath machine
PROBABLE CAUSE
1. Initial fill/setup
2. Dispense deck
3. Water pressure greater than
100psi
1. Bath tank overflow.
REMEDY
Some expansion normal. May fill
drip tray during initial ice block
formation
Inspect or replace fittings clamps,
o-rings, solenoids and quick disconnect fittings.
NOTE: Dispense deck area slopes
to drain tube that leads to the drip
tray.
Install water pressure regulator and
reduce to 50 psi.
A) Check all internal water connections.
B) Check internal plumbing connections.
2. Condensation from cabinet cooling coil.
C) Check bath float switch
Check for routing of condensation
tube to water bath.
24
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Unit is not working
Difficulty brixing and/or weak beverage
PROBABLE CAUSE
1. Step-down transformer.
2. Main control board.
1. Product viscosity or too cold.
2. Low water pressure.
3. High water pressure.
4. Dispense valve adjustment setting.
REMEDY
Check for 120/24 or 230/24 vac. If no
24vac reading, replace step-down
transformer.
If 24 vac present and no LED’s lit,
replace control board.
Thorough thaw of product before
use (35° - 40°)
Maintain 30 psi or higher and a
minimum dynamic flow rate of 4.5
fl oz/sec.
Over 100 psi, install a pressure
regulator and set to 50 psi.
A) Perform 3 second water dispense
test. Factory setting is 133 ml in 3
second dispense.
Difficulty brixing and/or weak beverage
Difficulty brixing bag-in-box
5. Brix ratio.
1. Pump tubing.
2. Use of portable water pump.
Vacuum leak
B) Adjust water to 133 mL/3 sec..
Once water is set, adjust motor
speed to achieve brix degrees.
Check for proper brix ratio per
product using Ratio method and
or refractometer method.
Inspect, clean, or replace tubing
and pump rotor/rollers for ease of
rotation.
A) Follow plumbing requirements
for pressure and flow rate.
B) Source another portable pump
or water supply that meets requirements.
Inspect all lines and connections
from bag-in-box connector to bottle
adapter assembly.
25
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Only Water Flowing from Faucet
Head on Beverage Thinner than
Desired
PROBABLE CAUSE
1. Bag-in-Box (BIB) or caddy is
empty.
2. BIB or caddy is not engaged in
bottle adapter properly.
1. System is not set to temperature yet (ice bank not fully
formed).
REMEDY
1. Change BIB to full BIB or refill
the caddy with more product.
2. Lift BIB or caddy out of adapter and seat it back down properly. Follow step-by-step instructions on priming product
through the system.
1. Wait until system is fully cooled
and ice bank fully formed
before setting preferred N2
pressure. Check Compressor
switch is set to ON and sight
gauge shows full water bath. If
water bath sight gauge is low,
press Dispense switch to OFF.
Wait a few seconds. Press Dispense switch to ON. Bath will
automatically start filling water
bath after 30 seconds.
2. a) Tank regulator is below 125
psi (red LED Nitrogen “Out”
light is flashing on dispenser
door).
b) Gas leak on tank regulator.
2. a) Adjust tank regulator by
turning the T-handle clockwise
until needle reaches 125 psi.
Dispense a drink to make sure
needle stays set at 125 psi.
b) If gas is leaking from tank
regulator, replace tank regulator by contacting manufacturer or supplier.
26
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Coffee is Weaker than Desired
Coffee is Stronger than Desired
PROBABLE CAUSE
1. BIB or caddy is empty.
2. Product pump tubing is worn.
3. Build-up is occurring in nozzle
and system needs cleaning.
4. Brix is off target and needs adjustment.
1. Water supply is turned off or
too low water pressure from
source/inlet.
REMEDY
1. Change to full BIB or replenish
caddy with more product.
2. Contact authorized service
agent or perform product tubing replacement if authorized
to do so.
3. Remove nozzles and clean
with sanitizing solution to remove build-up. Follow Care
and Cleaning instructions and
run sanitizing solution through
system.
4. Follow set-up instructions to
adjust Brix.
1. Assure required water connection was made properly and if
there’s a shut-off valve, make
sure shut-off valve is open.
Check that water inlet pressure has dynamic operating
pressure between 30 to 90 psi.
If below 30 psi, install water
booster pump for adequate
water pressure to supply line
of dispenser.
2. Brix is off target and needs adjustment.
27
2. Follow set-up instructions to
adjust Brix
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Nothing Flowing from Nozzles
Product Pouring Too Warm and/or
Inside Cabinet Too Warm
PROBABLE CAUSE
1. Dispense switch is OFF.
2. Gas, coffee, and water not
connected.
1. System has not reached temperature (ice bank not fully
formed).
REMEDY
1. Turn Dispense switch ON.
2. Assure all required connections are made according to
set-up instructions before operating the system.
1. Wait until system is fully
cooled and ice bank fully
formed. Check Compressor
switch is set to ON and sight
gauge shows full water bath. If
water bath sight gauge is low,
press Dispense switch to OFF.
Wait a few seconds. Press Dispense switch to ON. Bath will
automatically start filling water
bath after 30 seconds.
2. BIB or caddy is ambient temp
and needs to cool down.
3. Water bath pump not running.
2. Best practice is to use a chilled
BIB or caddy for proper nitrogenation. If using ambient
concentrates, chill BIB or caddy first prior to using.
3. Confirm the compressor/water
bath pump switched is turned
ON. Confirm the water bath
pump and compressor are
running.
28
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Irregular Flow from Nozzle
1. Flow is pulsating/ hammering
2. Flow coming out at an angle
3. Flow rate is slow
PROBABLE CAUSE
1. The product pump speed is set
too high (at max) to dispense
a lower ratio product (below
4:1).
2. The nozzle has accumulated
build-up or debris.
3. a) The nozzle has accumulated
build-up or debris
b) The water needle valve on
right-side of deck may be set
too low (only affects Still Dispense station)
c) The system needs cleaning
REMEDY
1. Use a more appropriate concentrate (between 4:1 to 11:1)
and adjust the product dial to
the proper Brix setting.
2. Remove nozzles and clean
with sanitizing solution to remove build-up. Follow Care
and Cleaning instructions and
run sanitizing solution through
system.
3. a) Remove nozzles and clean
with sanitizing solution to remove build-up. Follow Care
and Cleaning instructions and
run sanitizing solution through
system.
b) Water flow rate should be
factory pre-set to 133 ml (4.5
oz) per 3 second dispense.
To verify, switch to Program
mode. Place a graduated measuring cylinder under the dispense nozzle, pull and release
the tapper handle 3 times. The
dispenser will then dispense
an amount of water for 3 seconds. If water flow rate is set
too low, adjust the water needle valve using a small flathead
screwdriver and turning the
needle counter-clockwise.
29
c) Clean the system by follow-
ing the Care and Cleaning instructions.
54261.0001 090817
TROUBLESHOOTING (cont.)
PROBLEM
Unit Performing Inconsistently
(Brix/Nitro fluctuating wildly or
outside normal range)
PROBABLE CAUSE
1. System was installed/set-up
incorrectly or has been placed
in an environment with unacceptable conditions:
a. Incorrect water line size
b. Incorrect gas line size
c. Fluctuations in water or
gas supply pressures
d. Ambient temperature too
high or low
2. System has internal malfunction and needs service by a
technician
REMEDY
1. a) Install a water line that is
in accordance with machine
specifications.
b) Install a gas line that is in
accordance with machine
specifications.
c) Assure the unit is being fed
consistent and constant gas
and water pressure.
d) Place the unit in a location
in accordance with machine
specifications.
2. Call Customer Support for assistance.
30
54261.0001 090817
CONDENSER
SUCTION
ACCUMULATOR
COMPRESSOR
EVAPORATOR
PROCESS TUBE
FILTER
DRYER
COOLANT SCHEMATIC DIAGRAM
31
54261.0001 090817
J2-1
WHI/BLU
WHI/BLU
WHI/RED
LEFT
RIGHT
DISPENSE
DISPENSE
PULL & HOLD BODY
J2-5
WHI/RED
BLU/BLK
THERM.
GRN/YEL-16
LEFT
DISPENSE
LEFT
DISPENSE
WHI/VIO
SOL SOL
J3-1
NITRON
COMPRESSOR ASSY
COMPRESSOR
LIMIT
START
2
3
56
PTC
4
1
ASSY
RED/BLKBLU/BLK
K1
REDRED
VIO
YEL YEL
AUXILLARY
CONTROL BOARD
J4-1
J3-5
RED
DISPENSE AREA
L.E.D.
RED
DISPENSE AREA
L.E.D.
BLK
RED
NITROGEN PRESSURE
SCHEMATIC WIRING DIAGRAM
SCHEMATIC WIRING DIAGRAM
COLD DRAFT COUNTERTOP DISPENSER
2
BLU
WHI/BLU
MOTOR
RUN
N
L.E.D.
RIGHT
DISPENSE
PUMPPUMP
RIGHT
DISPENSE
J4-5
BLK
BLK
WHI
BLU/BLK
ORN
WHI/ORN
J8-1
RED
BLK
BLK
CONDENSOR FAN
WHI WHI
MOTOR
WHI RED/BLK
RECIR.
PUMP
GRN
1
WHI/VIO
WHI/VIO
VIOVIO
WHI/ORNWHI/ORN
YELYEL
REDRED
ORNORN
12
J6-1
J8-5
J8-8
BLK
120 VOLTS AC
220-230 VOLTS AC
2 WIRE
SINGLE PHASE
J1-1
BLU
J6-5
J1-3
J5-1
J5-5
BLU
or
54267.0000B 07/17 © 2017 BUNN-O-MATIC CORPORATION
WHI/BLK
WHI
K1
RED/BLK
COMPRESSOR/WATER BATH
WHI/ORN
WHI/VIO
WHI/BLU
WHI/BLU
BLU
RED
ORN
VIO
YEL
BLU
BLU
BLK
RED
YEL
BLU
ORN
SWITCH
BRN
J2-1
J2-6
DISPENSE
LOCKOUT
SWITCH
J6-1
J6-3
J12-1
J12-3
J11-1
J11-5
BLU
BRN
BLK
TRANSFORMER
L
O
A
D
WHI
BLK
WHI/BLK
J1-1
CONTROL
P
C
BOARD
J8-2
J8-1
WHI
BLK
L
I
N
E
WHI
BRN WHI
BRN
RED
J3-1
WHI/RED
J3-2
J1-5
GRY
J7-1
WHI/BLK
J7-2
BLK or ORN
J9-1
WHI
J9-2
J13-1
BLU
PNK
YEL
J13-6
WHI/RED
J15-1
WHI/BLU WHI/BLU
WHI/YEL
J15-4
J5-1
BLK
BLK
J5-4
WATER INLET
VALVE
SOL
WATER BATH
FILL
BLU
SOL
BLK
BLK
Chassis
Ground
GRN
1
RED
BLK
YEL
PROGRAM
SWITCH
NITROGEN
PRESSURE
SENSOR
MODELS
FAN
120V
L1
A B
A B
BLK
N
WHI
WATER BATH
THERMISTOR
WHI/YEL
220-230V
MODELS
BRN
GRN/YEL
EMI
FILTER
A B
A B
BRN/WHI
WHI
BLK
t
THERMISTOR
1 2
NL1GND
BLU
WHI/GRN
1
CABINET
WHI/RED
Chassis
Ground
WATER BOOSTER
PUMP
BLK
WHI
GRN
K2
WATER BOOSTER
PUMP RELAY
PNKYEL
K2
BLK
t
Lited Doors
BLK
BATH
FLOAT
_
BLK
RED
+
FILL
Regulator
Board
J2-1
WHIWHI
BRNBRN
GRNGRN
Door
Ground
RED
J3-1
BLK
J1-1
BRN
WHI
+
RED
_
BLK
32
54261.0001 090817
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