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  5. Installation & Operating Manual

Bunn nitron 2 Installation & Operating Manual

Summary of nitron 2

  • Page 1

    Installation & operating guide bunn-o-matic corporation post office box 3227 springfield, illinois 62708-3227 phone: (217) 529-6601 fax: (217) 529-6644 to ensure you have the latest revision of the operating manual, or to view the illustrated parts catalog, programming manual, or service manual, ple...

  • Page 2

    2 54261.0001 031314 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, ther- mal servers and thermofresh® servers (mech...

  • Page 3

    3 contents warranty ........................................................................................................................ 2 user notices .................................................................................................................. 4 north american requirements...

  • Page 4

    4 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. 41509.0006 27442.0000 00986.0002 00656.0001 33461.0001 as directed in the interna...

  • Page 5

    5 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 op...

  • Page 6

    6 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...

  • Page 7

    7 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 recepta...

  • Page 8

    8 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 f...

  • Page 9

    9 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 ap...

  • Page 10

    10 1. Install door cover by first plugging the leds from the door into the black connectors with red/black wires door cover installation 2. Install door cover and secure the door cover us- ing 5 screws provided. 3. Connect tapper handle switches to harness in door. Note: connect left switch to blue ...

  • Page 11

    11 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. ...

  • Page 12

    12 operating controls refrigeration switch product dispense handles 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 ...

  • Page 13

    13 operating controls (continued) dispense lockout switch 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 program switch this switch is located near the main control ...

  • Page 14

    14 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 adapt...

  • Page 15

    15 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. R...

  • Page 16

    16 adjusting water flow using flat blade screwdriver 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 p...

  • Page 17

    17 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 pr...

  • Page 18

    18 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 di...

  • Page 19

    19 fault code leds 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. Ba...

  • Page 20

    20 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 elec...

  • Page 21

    21 troubleshooting (cont.) check for "on" position or no con- tinuity - replace switch. Clean filter and fins or replace con- denser filter. (filter not supplied on some machines). A) check for 120v or 230v ac. Re- place fan motor or check fan blades for obstructions. B) check compressor led on circ...

  • Page 22

    22 troubleshooting (cont.) dispenser locked out dispense stations not working. Cooling system failure. Dispense station not working all stations dispense concentrate only 1. Check dispense lockout switch. 1. Refrigeration or cold water recir- culation system. 1. Dispense lockout switch set to off po...

  • Page 23

    23 troubleshooting (cont.) dispense station concentrate only dispense station water only 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 coun- terc...

  • Page 24

    24 troubleshooting (cont.) water leak filling drip tray or around dispense deck area water leaking beneath machine 1. Initial fill/setup 2. Dispense deck 3. Water pressure greater than 100psi 1. Bath tank overflow. 2. Condensation from cabinet cool- ing coil. Some expansion normal. May fill drip tra...

  • Page 25

    25 troubleshooting (cont.) unit is not working difficulty brixing and/or weak bev- erage difficulty brixing and/or weak bev- erage difficulty brixing bag-in-box 1. Step-down transformer. 2. Main control board. 1. Product viscosity or too cold. 2. Low water pressure. 3. High water pressure. 4. Dispen...

  • Page 26

    26 troubleshooting (cont.) problem probable cause remedy only water flowing from faucet head on beverage thinner than desired 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 tempera- ture yet (ice bank not fully formed). 2. A)...

  • Page 27

    27 troubleshooting (cont.) problem probable cause remedy 1. Change to full bib or replenish caddy with more product. 2. Contact authorized service agent or perform product tub- ing replacement if authorized to do so. 3. Remove nozzles and clean with sanitizing solution to re- move build-up. Follow c...

  • Page 28

    28 troubleshooting (cont.) problem probable cause remedy nothing flowing from nozzles product pouring too warm and/or inside cabinet too warm 1. Dispense switch is off. 2. Gas, coffee, and water not connected. 1. System has not reached tem- perature (ice bank not fully formed). 2. Bib or caddy is am...

  • Page 29

    29 troubleshooting (cont.) problem probable cause remedy 1. Use a more appropriate con- centrate (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 re- move build-up. Follow care and cleaning instructions and run sani...

  • Page 30

    30 troubleshooting (cont.) problem probable cause remedy unit performing inconsistently (brix/nitro fluctuating wildly or outside normal range) 1. System was installed/set-up incorrectly or has been placed in an environment with unac- ceptable conditions: a. Incorrect water line size b. Incorrect ga...

  • Page 31

    31 coolant schematic diagram condenser suction accumula to r compressor ev apora to r process tube fil ter dr yer 54261.0001 090817.

  • Page 32

    32 j6-1 j6-3 control p c board j5-1 j5-4 j15-1 j15-4 j2-1 j2-6 grn whi/orn left dispense right dispense left dispense right dispense yel yel whi/vio recir. Pump brn whi blk j1-1 j1-5 whi j3-1 j3-2 whi/blk orn whi/vio whi/orn vio red red red whi/red blk whi red/blk red/blk yel whi/blu blu red motor c...