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37X INSTALLATION & OPERATION MANUAL

372/373 MODEL

A10. MENUS AND NAVIGATION

A10.6 Readouts Menu

The COMMON READOUTS will show Nitrogen (N2) readouts instead of CO2.

A10.9 Maintenance Menu

On Nitrofub dispensers, the GAS PURGE procedure uses Nitrogen (N2) to purge air from the barrel instead of CO2.

A10.10 Settings Menu

On Nitrofub dispensers, the EXPANSION ADJUSTMENT is used to adjust the amount of Nitrogen (N2) in the drink instead

of CO2.

A11. TROUBLESHOOTING

A11.1 Home Menu Messages

A11.2 Fault Codes

Error #280: N2 Out

The N2 pressure is less than 45 PSIG (310 kPag).

Figure A10.1

Replace or refill the N2 tank.

Ensure N2 shutoff valve at the back of the dispenser is not turned off.

Ensure the N2 pressure transducer is connected and working properly.

Ensure the N2 supply pressure at the dispenser is reading 70 PSIG (483 kPag). Adjust the regulator

if needed.

Message

Meaning

Action

N2 supply depleted.

Restore N2 supply. Dispenser will

automatically restart.

Summary of Contents for 37 Series

Page 1: ...37X SERIES INSTALLATION OPERATION MANUAL 372 373MODEL 24 37XM 0001_01 ...

Page 2: ...G TO CO2 SUPPLY 8 5 7 CONNECTING TO SYRUP SUPPLY 8 6 STARTING UP THE DISPENSER 9 6 1 LEAK CHECK AND PRIME 9 6 2 INITIAL POWER UP 10 6 3 BRIXING 11 6 4 FILLING BARREL AND STARTING 12 7 DISPENSER OPERATION 13 7 1 FREEZE 13 7 2 OFF 13 7 3 DEFROST 13 7 4 DRINK QUALITY 13 7 5 DRINK TOO FIRM OR COLD 14 7 6 DRINK TOO SLOPPY OR WARM 14 7 7 DRINK TOO HEAVY 14 7 8 DRINK TOO LIGHT 14 7 9 DEFROSTING 14 8 CLEA...

Page 3: ...T CODES 38 12 DIAGRAMS AND SCHEMATICS 40 12 1 MOUNTING TEMPLATES 40 12 2 FLOW DIAGRAM 42 12 3 372 ELECTRICAL WIRING DIAGRAM 43 12 4 373 ELECTRICAL WIRING DIAGRAM 46 12 5 REFRIGERATION SCHEMATIC DIAGRAM 49 12 6 REFRIGERATION SCHEMATIC DIAGRAM 50 APPENDICES 51 APPENDIX A 372 NITROFUB 52 Dispenser Appendix Annotation Symbol 372 Nitrofub A NF WhileSections1 12containinformationspecifictothecommonconfi...

Page 4: ...n A CO2 cylinder with a damaged or detached valve can cause serious personal injury 1 3 General Precautions This equipment depending on the model weighs up to 304 pounds 138 kilograms and is top heavy To avoid personal injury or equipment damage do not attempt to lift the dispenser without help The use of a mechanical lift is highly recommended When lifting and positioning the dispenser it should ...

Page 5: ...on 10 10 Requirement Syrup Supply Pressure 70 72 PSIG 483 496 kPag Water Supply Pressure 30 PSIG 207 kPag Minimum Flowing Pressure 70 PSIG 483 kPag Maximum Static Pressure CO2 Supply Pressure 70 72 PSIG 483 496 kPag Clearance 3 76 mm Sides and Back 12 305 mm Top Refrigerant R404A Requirement Frequency 60 Hz Operational Voltage 230 VAC 10 Current 20 A Specifications 372 373 Width 15 8 400 mm 20 1 5...

Page 6: ... Lift dispenser up by the frame cross bracing and remove lower portion of carton F If dispenser is received with a shipping board attached to the bottom remove shipping board from bottom of dispenser by accessing and removing the bolts located on the under side of the shipping board 5 INSTALLATION 5 1 General Location Requirements Dispenser is intended for indoor use only A flat level location is ...

Page 7: ...top option is to use support legs that raise the dispenser four inches off the countertop purchased separately The legs mount to the same frame locations as the countertop mounting bolts This allows easy cleaning under the dispenser and meets most state and local health department codes Base Cart A roll around base cart purchased separately can be used when a suitable countertop location is not av...

Page 8: ... shall be sized installed and maintained in accordance with federal state and local codes Connect water line adapter to the bulkhead fitting labeled WATER of H2O on the back of the dispenser Figures 5 1 and 5 2 The water supply line should be 3 8 ID minimum or whichever size local codes require Before installing flush severalgallonsofwaterthroughanewlyfabricatedlinetoremoveanydebris Installingashu...

Page 9: ...o feed the syrup pumps Do not turn on the CO2 supply at this time 5 7 Connecting to Syrup Supply For installations requiring syrup lines less than 50 ft 15 m in length use tubing with a minimum ID of 3 8 Run the syrup lines from the pumps to the rear of the dispenser and connect to the proper syrup fitting Figures 5 1 and 5 2 For installations requiring syrup lines over 50 ft 15 m in length use tu...

Page 10: ...O2 supplies Ensure both are flowing to the dispenser Note The water and syrup pumps will activate loudly until the lines are pressurized 5 Thoroughly check for leaks at all connections 6 Install a 1 4 I D tube on the sample port shown in Figure 6 1 Open the sample valve and collect the water syrup in a cup Continue to prime until syrup flow has been established and all air has been removed from th...

Page 11: ...pressure should be 15 to 20 PSIG 103 to 138 kPag above the unregulated CO2 pressure See the troubleshooting section if the pressures are not correct ThedispenserwilltoleratefluctuationsinregulatedCO2from50to70PSIG 345to483kPag becauseitwillautomatically compensate It is best to ensure during setup that the regulated CO2 is as close to 60 PSIG 414 kPag as possible 1 Press the green check button and...

Page 12: ...ff position Figure 6 2 2 Adjust the water flow rate to 1 5 oz sec 44 4 ml sec by dispensing water from the solution module through the sample port for 10 seconds into a measuring cup The amount measured should be 15 oz 444 ml Turn the flow control clockwise to increase the flow and counterclockwise to reduce the flow 3 Turn the syrup shutoff valve to the on position and dispense a cup of fluid fro...

Page 13: ... barrel and then press the GAS PURGE button Follow the prompts until the process has completed 3 Press the FILL BARREL button to begin filling the product Follow the prompts until the barrel is full and then press the END button Use the relief valve to relieve pressure in the barrel Figure 6 3 4 Once all barrels have been filled return to the home menu 5 Defrost the barrel s by pressing the green ...

Page 14: ...l the desired barrel is highlighted and then press the DEFROST button It will take about eight to twelve minutes to defrost depending on the activity of the other barrel 7 4 Drink Quality NF Many factors can affect the quality of a frozen beverage such as time since last defrost brand of syrup used and the local water quality There can even be drink quality differences between the various flavors ...

Page 15: ...nt in the drink increase the setting in the EXPANSION ADJUSTMENT menu Approximately ten 16 oz drinks will need to be dispensed before the product in the barrel has reconditioned to the new setting 7 8 Drink Too Light NF A drink with too much CO2 will be very light and may even collapse in the cup To reduce the amount of CO2 in the drink lower the setting in the EXPANSION ADJUSTMENT menu Approximat...

Page 16: ...exterior of the equipment Remove all product residues from the surfaces of the dispenser Rinse thoroughly using clean water also at 90 F to 100 F 32 C to 38 C to remove the remaining soap Remove the drip tray if not connected to drain plumbing and cup rest and clean in a sink using a mild soap solution 8 3 Sanitizing The dispenser should be sanitized yearly Prepare a chlorine solution containing 1...

Page 17: ...gitate for three minutes 10 While the beater motor is agitating dispense some sanitizing solution from both the relief valve and the sample valve to ensure they are both sanitized as well 11 Remove the BIB connector from the sanitizing solution and reconnect to the syrup supply 12 Activate the solution solenoid 13 Place a large container under the dispensing valve and drain the barrel Activating t...

Page 18: ...tainless steel DDV the roll pin needs to be changed during the annual preventive maintenance The SS DDV Minor Repair Kit P N 12 1140 0001 contains the roll pin and O rings that are recommended to be replaced If the internal metal components show signs of wear the SS DDV Major Repair Kit P N 12 2307 0001 can be used to replace needed components If the roll pin does not fit tightly with the handle l...

Page 19: ...to the MAINTENANCE MENU and start the DRAIN BARREL process Follow the prompts until the barrel is empty and then end the process 3 Vent the barrel of all pressure 4 Remove the faceplate and beater bar Be sure to catch the remaining liquid from the barrel when removing the faceplate 5 With a small pick or corkscrew type seal puller reach into the back of the barrel and remove the rear seal Figure 9...

Page 20: ...he backflow preventer must be removed and cleaned on an annual basis To clean the device turn off the water supply and unscrew the filter housing Figure 9 2 Clean any debris and replace the strainer Turn the water supply back on when finished Figure 9 2 Backflow Preventer Unscrew Cap and Remove Strainer to Clean ...

Page 21: ...mation by the green select button is required Up Down Arrow Buttons yellow These buttons move the highlighted selection up and down Press the select button to confirm the selection Soft Key screen labeled Buttons black These buttons change function depending on the menu currently being displayed The function will be displayed below the top buttons and above the lower buttons Figure 10 1 Keypad ICO...

Page 22: ... time depending on the current activity or error For a complete listing of these messages please see the Home Menu Messages section of this manual 10 3 Pop Up Menu The pop up menu Figures 10 2 and 10 3 allows the user to do the following Start or stop the highlighted barrel Defrost the highlighted barrel Refill the highlighted barrel use only when partially empty Do not use this option to fill emp...

Page 23: ...while in the MAIN MENU and then simultaneously press the green select key and the bottom center soft key EXPANSION ADJUSTMENT FREEZE ADJUSTMENT AUTO DEFROST PURGE FILL DRAIN BARREL WATER BRIX CALIBRATION BARREL COMMON HOME SCREEN POP UP MENU READOUTS SERVICE MENU LANGUAGE FAULT CODE HISTORY MAINTENANCE MENU SETTINGS READOUTS BEVTRAKTM MACHINE TOTALS DIAGNOSTICS FACTORY MENU CLOCK SCHEDULES MANUAL ...

Page 24: ...DOUTS menu shows the current status of all temperature and pressure sensor readings line voltage and other pertinent information about the operation of the dispenser Some readouts are common to the dispenser and others are side or barrel specific Press the BARREL or COMMON soft key button to switch between the two readouts Figures 10 5 and 10 6 Figure 10 4 Figure 10 5 Figure 10 6 Refer to Appendic...

Page 25: ...a QR code Figure 10 8 Scan the QR code with a smart phone to see detailed troubleshooting steps For a complete listing of fault codes that can be displayed please see the Fault Codes section Section 11 2 of this manual 10 8 Service Menu The SERVICE MENU Figure 10 9 is intended for use by a trained service technician only To access its submenus select SERVICE MENU while in the MAIN MENU and then pr...

Page 26: ...ng the barrel If the air is not replaced with CO2 in the barrel then the drink quality of the first few drinks from the barrel will be negatively affected The process will fill the barrel with CO2 three times before automatically ending DRAIN BARREL This process will assist in draining a liquid barrel defrost first if needed The user must terminate this process by pressing the END button once the ...

Page 27: ...er is set up with an audible alarm when out of product There are also two sub menus that affect the quality of the drink Figures 10 14 and 10 15 EXPANSION ADJUSTMENT The amount of carbonation in the drink can be adjusted in this menu Figure 10 13 The adjustment ranges from MAX CO2 high levels of carbonation to an uncarbonated drink Select the barrel number and adjust the bar graph up or down Note ...

Page 28: ...ppropriate barrel The adjustment allows the service agent to make the drink more liquid or more frozen Note It will take several compressor cycles before the product in the barrel has reconditioned to the new settings 10 11 Clock and Schedule Menu The CLOCK AND SCHEDULE menu contains various submenus shown in Figure 10 16 Figure 10 15 Figure 10 16 ...

Page 29: ... for easy adjustment of the defrost times for barrel 1 and then the delay time between barrels For example assume the delay time is set to 60 minutes on a 3 barrel dispenser and the first defrost is at 03 00 Barrel 1 will defrost at 03 00 barrel 2 will defrost at 04 00 and barrel 3 will defrost at 05 00 There can be up to eight defrosts per barrel per day A time of 00 00 means no defrost is schedu...

Page 30: ...can be programmed These windows prevent any defrost cycles from occurring during that period Up to three windows can be specified and the start and end times for each window must be designated Note A defrost schedule and auto defrost can be used simultaneously 10 15 Wake Sleep Schedule Menu The wake sleep feature Figure 10 20 makes the dispenser wake up and go to sleep automatically This feature i...

Page 31: ...stheequipmentownertomonitorthestatusandsales performance of their dispenser via an internet browser BevTrakTM connects to the internet through Wi Fi connections If your dispenser comes with BevTrakTM capability the BEVTRAKTM menu Figure 10 22 will show Yes for Enabled If the serial number is not already entered in this menu then it will need to be entered here to utilize this service Also a Wi Fi ...

Page 32: ...he needed network Once the network is selected a second WIFI SETUP MENU window will open Figure 10 25 that will allow you to enter the password to the selected network To finalize setup select PRESS TO COMPLETE SETUP 10 19 Machine Totals Menu The MACHINE TOTALS menu Figure 10 26 provides various totals that the dispenser records such as the number of compressor cycles or operating time for various...

Page 33: ...s to first run the diagnostic sequence for the system involved This can eliminate hours of guesswork and parts swapping There are two diagnostic sequences 1 Beater Circuit This sequence will help identify any component failure in the beater circuit system such as the beater motor and capacitors 2 Fill Circuit This sequence will help identify any component failure in the fill circuit system such as...

Page 34: ...Motor baseline value is at factory default Only occurs on new software installation Run defrost cycle DEFROSTING Barrel is defrosting Wait for defrost cycle to complete FILL ERROR A barrel is not filling with product correctly Run fill circuit diagnostic sequence FREEZING Dispenser is in READY mode and product is being frozen No action required HIGH BARREL PRESSURE The barrel pressure exceeds 55 P...

Page 35: ...RUP OUT The syrup pressure is below the syrup out threshold Check syrup BIB or pump Replace BIB if needed barrel will restart automatically TEMPERATURE SENSOR FAILURE Temperature sensor reading out of range Check sensor and replace if necessary WAITING TO DEFROST Barrel is waiting to begin the defrost cycle and must wait until one of other barrels freezes or completes a defrost No action required ...

Page 36: ...rup shutoff valve at the solution module is turned on 6 Ensure any syrup shutoff valves at the back of the dispenser are not turned off 7 Ensure the syrup supply pressure at the dispenser is reading 70 PSIG 483 kPag Adjust the regulator if needed 8 Ensure the syrup pressure transducer is connected and working properly 1 Replace or refill the CO2 tank 2 Ensure CO2 shutoff valve at the back of the d...

Page 37: ...heck the brix at the sample valve and adjust if needed Drain and refill the barrel 2 Check the fault code history for multiple sold out errors within a short period This can mean that the BIB connector or syrup pump has a suction leak Fix if necessary 3 Run the beater circuit diagnostic if a component failure is suspected 1 Is the location an extreme volume venue such as a festival If so contact F...

Page 38: ...ure Sensor The refrigeration return suction temperature sensor is not reading correctly 1 Ensure the temperature sensor is plugged in 2 Replace the sensor if faulty 1 Check the carbonation regulator on the header tray and ensure it is set to 60 PSIG 414 kPag 1 Ensure the pressure transducer is plugged in 2 Replace the transducer if faulty 1 Run a defrost cycle to reset the motor baseline value 2 R...

Page 39: ...ower harness 6 If motor fails to start with working capacitor then replace both motor and capacitor 1 Disconnect the electrical harness from the CO2solenoid for the barrel in question 2 Manually activate the solenoid and check to make sure there is 12 VDC at the connection the voltage will read 2 VDC when not powered If no voltage then replace the control board 3 If correct voltage is present then...

Page 40: ...re not manually turned on by going to the MANUAL ON OFF menu Check to see if either solenoid is receiving power by removing the leads and testing with a voltmeter If 12 VDC is measured on the CO2 solenoid or 24 VAC is measured on the solution solenoid then replace the control board 1 Look for any obvious leaks by searching for liquid along the product line from the solution module to the back of t...

Page 41: ...ion and install 3 8 16 UNC bolts from the underside of the countertop into the threaded bosses in the frame Seal the dispenser to the countertop with a bead of clear silicone caulk around the base of the frame to prevent spills from collecting under the dispenser 16 13 in 409 58 mm 25 70 in 652 80 mm 3 49 in 88 52 mm 13 63 in 346 08 mm 15 62 in 396 80 mm 4 3 8 16 TAPPED HOLES CLEARANCE HOLE 4 74 i...

Page 42: ... 373 MODEL 41 Figure 12 2 373 Mounting Diagram 4 3 8 16 TAPPED HOLES CLEARANCE HOLE 4 31 in 109 4 DRAIN 5 88 in 149 4 DRIP TRAY 18 13 in 460 4 20 03 in 508 9 16 13 in 409 4 25 87 in 657 2 25 14 in 638 7 4 37 in 111 12 1 Mounting Templates ...

Page 43: ... PSI SAMPLE SOLUTION MODULE SOLUTION MODULE SAMPLE CO2 H2 O P S SHUTOFF VALVE VARIABLE RESTRICTION PUMP CHECK VALVE PRESSURE TRANSDUCER SOLENOID VALVE VALVE PRESSURE REGULATOR L E G E N D P BARREL 1 BARREL 2 P P S EXPANSION CHAMBER FREEZE CHAMBER DISPENSING SYRUP IN SOLUTION MODULE SAMPLE BARREL 3 P S S S Refer to Appendices for additional information on Nitrofub configuration Three barrel configu...

Page 44: ...YEL YEL L1 L2 FAN L1 FAN L2 BTR 2 L1 BTR 2 L2 BTR 1 L2 BTR 1 L1 STARTER RELAY 5 1 2 4 RV2 275 VAC 1 2 2 1 BLK BRN OVERLOAD C R S BRN BLU 1 5 MFD RUN CAP START CAP BLU RV 3 RV 4 RV1 39VAC 4 MFD 4 MFD PART 50 60 HZ COMPRESSOR 36 2026 0001 MFP AKA9462ZXD START CAP 72 88MFD RUN CAP 15MFD START RELAY 14 2292 0006 FAN 30 0107 0001 Motors 220 V 60 Hz Motor 30 0110 0001 Motor Assy 12 0291 0003 BLU BLU 30 ...

Page 45: ...72 Electrical Wiring Diagram C B A CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE D 12 VDC SOL 2 RTN SOL 1 RTN 24 VAC 24 VAC 24 VAC DEF 1 RTN REF 1 RTN DEF 2 RTN REF 2 RTN DOOR POWER ALARM DISP 2 DISP 1 REF 2 DEF 2 REF 1 DEF 1 SOLD OUT 2 SOLD OUT 1 ...

Page 46: ...37X INSTALLATION OPERATION MANUAL 372 373 MODEL 45 12 3 372 Electrical Wiring Diagram GROUND OUTPUT VOLTAGE FSC DOOR1 FSC DOOR2 KEYPAD ...

Page 47: ...tor 30 0110 0001 Motor Assy 12 0291 0003 START RELAY 3 1 2 4 RV2 275 VAC 1 2 2 1 BLK BRN C R S BRN BLU 1 5 MFD RUN CAP START CAP BLU BTR 3 L2 BTR 3 L1 3 4 MFD 4 MFD 4 MFD RV4 RV5 30 0107 0001 PART 60 HZ Compressor MFR 36 0106 0003 RST70C1E PFV Start Capacitor 14 0481 0006 108 130 MFD Run Capacitor 14 0482 0003 25MFD Start Relay MFR 14 0401 0007 RVA4AL6D 930 RV3 A CONTINUED ON NEXT PAGE B C CONTINU...

Page 48: ...ical Wiring Diagram A B C CONTINUED FROM PREVIOUS PAGE D 12 VDC SOL 2 RTN SOL 1 RTN 24 VAC 24 VAC 24 VAC DEF 1 RTN REF 1 RTN DEF 2 RTN REF 2 RTN DEF 1 CO2 3 DOOR POWER ALARM SOLDOUT 1 SOLDOUT 2 SOLDOUT 3 REF 1 DEF 2 REF 2 DEF 3 REF 3 SOL 3 CONTINUED FROM PREVIOUS PAGE ...

Page 49: ...37X INSTALLATION OPERATION MANUAL 372 373 MODEL 48 12 4 373 Electrical Wiring Diagram GROUND OUTPUT VOLTAGE PRESSURE ...

Page 50: ...ration Schematic Diagram s CONDENSER DEFROST SOLENOID RECEIVER DRYER P HEAT EXCHANGE PRESSURE SENSOR EVAPORATION LT EVAPORATION RT ACCESS VALVE COMPRESSOR ACCESS VALVE FLOW FLOW FLOW s s s DEFROST SOLENOID EXPANSION VALVE EXPANSION VALVE T TEMPERATURE SENSOR FLOW FLOW ...

Page 51: ...CONDENSER DEFROST SOLENOID RECEIVER FILTER DRIER P HEAT EXCHANGER PRESSURE SENSOR EVAPORATOR 2 EVAPORATOR 3 ACCESS VALVE COMPRESSOR ACCESS VALVE FLOW FLOW FLOW s s s DEFROST SOLENOID EXPANSION VALVE EXPANSION VALVE T TEMPERATURE SENSOR FLOW FLOW DEFROST SOLENOID EVAPORATOR 1 s s EXPANSION VALVE ...

Page 52: ...37X INSTALLATION OPERATION MANUAL 372 373 MODEL 51 APPENDICES ...

Page 53: ...suspected immediately ventilate the contaminated area before attending to repair the leak Inhalation of excessive amounts of N2 can cause dizziness nausea vomiting loss of consciousness and death To avoid personal injury and or property damage always secure N2 cylinders in an upright position with a safety chain An N2 cylinder with a damaged or detached valve can cause serious personal injury A3 S...

Page 54: ...Up Follow the same procedure listed in Section 6 2 with the change on the step below A6 4 Filling Barrel and Starting Follow the same procedure listed in Section 6 4 The Nitrofub dispenser will purge the barrel with N2 instead of CO2 A7 DISPENSER OPERATION A7 4 Drink Quality The drink quality factors are the same as listed in Section 7 4 however for the Nitrofub dispenser the EXPANSION ADJUSTMENT ...

Page 55: ...st the amount of Nitrogen N2 in the drink instead of CO2 A11 TROUBLESHOOTING A11 1 Home Menu Messages A11 2 Fault Codes Error 280 N2 Out The N2 pressure is less than 45 PSIG 310 kPag Figure A10 1 1 Replace or refill the N2 tank 2 Ensure N2 shutoff valve at the back of the dispenser is not turned off 3 Ensure the N2 pressure transducer is connected and working properly 4 Ensure the N2 supply pressu...

Page 56: ...ER EXPANSION CHAMBER FREEZE CHAMBER FREEZE CHAMBER DISPENSING DISPENSING SYRUP IN SYRUP IN 15 20 PSI 60 PSI 30 PSI 8 PSI SAMPLE SOLUTION MODULE SOLUTION MODULE SAMPLE N2 CO2 SHUTOFF VALVE VARIABLE RESTRICTION PUMP CHECK VALVE PRESSURE TRANSDUCER SOLENOID VALVE VALVE PRESSURE REGULATOR H2 O L E G E N D BARREL 1 NITRO FCB BARREL 2 NITRO FUB ...

Page 57: ...37X INSTALLATION OPERATION MANUAL 372 373 MODEL 56 NOTES ...

Page 58: ...37X INSTALLATION OPERATION MANUAL 372 373 MODEL FBD TECHNICAL SUPPORT 866 323 2777 or www fbdfrozen com ...

Page 59: ......

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