Related Manuals for Manitowoc Multiplex N2Fusion
Summary of Contents for Manitowoc Multiplex N2Fusion
- Page 1 N₂Fusion ™ Nitrogen Beverage Dispenser Service Manual This manual is updated as new information and models are released. Visit our website for the latest manual. www.manitowocfsg.com Part Number 020007115 06/27/2019...
- Page 2 Safety Notices Read These Before Proceeding As you work on Manitowoc equipment, be sure to pay close Caution attention to the safety notices in this manual. Disregarding the notices may lead to serious injury and/or damage to the Proper installation,...
- Page 3 Warning Warning Do not operate equipment that has been misused, When using electric appliances, basic precautions must abused, neglected, damaged, or altered/modified always be followed, including the following: from that of original manufactured specifications. This Read all the instructions before using the appliance is not intended for use by persons (including appliance.
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Page 5: Table Of Contents
Table of Contents Section 1 General Information Model Numbers ........................9 Model Nomenclature: ..........................9 About N₂Fusion™ ........................ 9 Serial Number Location ..................... 9 Specifications ........................10 Dimensions ............................10 Capacity & Weight ..........................10 Product Delivery Location ........................ 11 Refrigerant Charge ..........................11 Electrical .............................. - Page 6 Table of Contents (continued) Section 4 Maintenance General Maintenance .......................27 Door Gasket Maintenance ....................... 28 Drain Maintenance - Inside Lower Cabinet ................28 Refrigerators ............................28 Stainless Steel Care & Cleaning ...................... 28 Doors/Hinges ............................29 Preventing Corrosion ......................... 29 Other Monthly Tasks ...........................
- Page 7 Table of Contents (continued) Section 7 Component Check Procedures Component Identification ....................45 External ..............................45 Power Supply ............................46 High Pressure Cutout (HPCO) Control..................46 Compressor Electrical Diagnostics ....................47 Diagnosing Start Components ....................... 47 Compressor Electrical Diagnostics ....................48 Compressor Drawing Locked Rotor ....................
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Page 9: General Information
Section 1 General Information Model Numbers This manual covers the following models: MODEL NOMENCLATURE: VIII Number of Tower Customer Dispenser Type Towers Handle & Nozzle Cabinet Type Electrical & Refrigerant Taps Mounting Specific 0 = 115/60 - R404a A = Double 2 = Two 1 = Single T = Top Mount... -
Page 10: Specifications
General Information Section 1 Specifications DIMENSIONS Model ND21TS00 ND21TS01 34.0” ND21TS02 27.3” (86cm) 28.4” 20.7” 13.6” 16.1” 44.6” 10.6” 7.3” ND21TS03 (69cm) (72cm) (53cm) (35cm) (41cm) (113cm) (27cm) (19cm) ND21TS04 ND21RS00 30.75” ND21RS02 (78cm) * * This dimension represents units using 1.25” (3.175cm) low profile casters, regular casters are 1.25” (3.175cm) taller. Warning To avoid instability the installation area must be capable of supporting the weight of the equipment. -
Page 11: Product Delivery Location
Section 1 General Information PRODUCT DELIVERY LOCATION Clearances Warning DANGER This equipment must be positioned so that the plug is accessible unless other means for disconnection from Minimum clearance requirements are the same for the power supply (e.g., circuit breaker or disconnect noncombustible locations as for combustible locations. -
Page 12: Electrical
General Information Section 1 ELECTRICAL Preparing the power cord (International units only) DANGER The following instructions cover the installation of a 220 VAC, Check all wiring connections, including factory terminals, 50/60 Hz (international) unit. An appropriate 3-wire power before operation. Connections can become loose during receptacle must be located within 6 ft (1.8 m) of the unit. -
Page 13: System Pressures
Section 1 General Information SYSTEM PRESSURES Warning Supply to the Unit When using electric appliances, basic precautions must always be followed, including the following: Warning A. Read all the instructions before using the Do Not exceed 90 psi (.621 MPa, 621 kPa, 6.21 bar) to appliance. - Page 14 General Information Section 1 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 020007115 06/27/2019...
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Page 15: Installation
Section 2 Installation Step-by-Step Installation These instructions are provided to assist the qualified installer. Contact your Manitowoc Foodservice Service Agent or call Manitowoc Foodservice for information regarding start-up services. PRE-INSTALLATION CHECKLIST DANGER Any damage should be noted and reported to the Use appropriate safety equipment during installation delivering carrier immediately. -
Page 16: Remote Tower Installation
Installation Section 2 REMOTE TOWER INSTALLATION Mounting & Routing These instructions are only for units that require remote placement of the dispensing tower. If this is a self contained IIportant unit with out remote setup continue to “Nitrogen Regulator & Tank Assembly” on page 17. Make sure the rubber counter top gasket is in place on the tower before routing conduit and mounting tower. -
Page 17: Nitrogen Regulator & Tank Assembly
Section 2 Installation NITROGEN REGULATOR & TANK ASSEMBLY IIportant DANGER Allow four (4)ft (1.22m) of tubing for a service loop to allow the cabinet to be pulled out during service and Tank under high pressure. Do not drop or allow tank to cleaning. -
Page 18: Nitrogen Installation/Replacement
Installation Section 2 NITROGEN INSTALLATION/REPLACEMENT NITROGEN CONNECTIONS & PRESSURES NOTE: During initial installation of the unit a bracket for the 1. Set inlet from food grade nitrogen tank to back of the nitrogen cylinder must be installed to solid wall nearby and dispenser to 85 - 90 psi a chain used to secure it to the bracket. -
Page 19: Quick Disconnect & Drain
Section 2 Installation QUICK DISCONNECT & DRAIN KEG & PUMP REGULATORS 5. Once the nitrogen line is hooked up to the unit check the Caution pressures on the two (2) regulators located in the back of Installer should always check the locking collars on the taps the unit. - Page 20 Installation Section 2 Regulator AdjustIent Procedure 12. Set each regulator by slowly turning the adjustment DANGER knob clockwise to increase the pressure. ELECTRICAL SHOCK HAZARD! The power supply is located IIportant in the upper right behind the cover and has live heat sinks. Unplug from power source when removing cover..
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Page 21: Keg Connections
Never stand directly over keg when connecting, disconnecting, or when keg is pressurized. IIportant IIportant Only use AEB Kegs. Available from Manitowoc FoodService.. Only use AEB Kegs. Available from Manitowoc Foodservice.. Keg Post Collars 1. Locate post collars and match the black to OUT post 3. -
Page 22: Door Hinge Reversal
Installation Section 2 6. Press the Prime/Clean button, located in the upper left DOOR HINGE REVERSAL corner of the refrigeration cabinet, once to prime the coffee Instructions for installations that require the cabinet door to line. The LED around the button will flash ON once, then be reversed. -
Page 23: Operation
Section 3 Operation Product Dispense Operation TAPS & NOZZLES For best performance do not allow both taps to remain fully opened for extended periods of time. TAP #1 TAP #2 Surface IIportant TAP #2 Contains an o-ring, diffuser disc, and diffuser. •... -
Page 24: Flow Control & Locking Collar
LED around the Prime/Clean button will blink spanner wrench is required to properly tighten the collar constantly signifying the unit is in Error Mode. and can be purchased from Manitowoc KitchenCare using NOTE: See “Error Code” on page 44 for more information part number (00681823). -
Page 25: Priming The System
Section 3 Operation PRIMING THE SYSTEM NITROGENATOR See also “Prime/Clean Button” on page 43 Nitrogen tank is equipped with a pressure relief valve that will automatically purge when pressure exceeds operating NOTE: Priming is always required during keg change. limit of the system of 100 psi (.689 MPa, 689 kPa, 6.89 bar). 1. -
Page 26: Refrigerated Cabinet Operation
Operation Section 3 Refrigerated Cabinet Operation See “Controls/Programming/Settings” on page 44 for details HOW TO REMOVE STRAINER on how to control settings for the refrigerated cabinet. A. First depressurize the system and disconnect the keg. See “Keg Change” on page 24 IN-LINE STRAINER Put down a towel or small cloth to catch any coffee The in-line coffee strainer is located inside celling of the... -
Page 27: Maintenance
Sectipn 4 Maintenance General Maintenance This section covers common unit components and their care. Warning The chart below is an overview of the maintenance that the Do not damage the refrigeration circuit when installing, end user and service technician should perform, and the maintaining or servicing the unit. -
Page 28: Door Gasket Maintenance
Maintenance Section 4 DOOR GASKET MANTENANCE STANLESS STEEL CARE & CLEANNG Door gaskets require regular cleaning to prevent mold To prevent discoloration or rust on stainless steel, several and mildew buildup and also to retain the elasticity of important steps need to be taken. First, we need to the gasket. -
Page 29: Doors/Hinges
Section 4 Maintenance DOORS/HNGES GENERAL CLEANNG nteripr Cleaning Over time and with heavy use, doors and hinges may become loose. If this happens, tighten the screws that Nptice mount the hinge brackets to the frame of the unit. Loose or sagging doors can cause the hinges to pull out of the frame, When cleaning interior and exterior of unit, care should which may damage both the doors and the hinges. -
Page 30: Cleaning Supplies
Maintenance Section 4 CLEANNG SUPPLES 1. Approved cleaner and sanitizer. 3. Towels, wipes, brushes, and buckets. • Use clean towels for any spilled fluid during cleaning process. • An approved cleaner, such as Urnex® Cafiza® Espresso Machine Cleaner mixed one (1) •... -
Page 31: Daily & Weekly Cleaning
Section 4 Maintenance DALY & WEEKLY CLEANNG Daily Cleaning Weekly Cleaning Daily cleaning consists of the following: Weekly cleaning consists of the following: • Wiping down the units interior and exterior with an • De-pressurizing the system approved cleaner and sanitizer. •... -
Page 32: Extended Shutdown Procedure
Maintenance Section 4 Extended Shutdpwn Prpcedure The following is the recommended shutdown or idle time Warning procedure for Nitro coffee units. This equipment is intended for indoor use only. DO NOT 1. Begin running the weekly cleaning and sanitizing install, operate or store this equipment in outdoor areas or procedure as explained in the Installation, Operations &... -
Page 33: Other Operations
Section 4 Maintenance Other Omeratipns DOORS/HNGES Over time and with heavy-use doors, the hinges may become loose. If this happens, tighten the screws that mount the hinge brackets to the frame of the unit. Loose or sagging doors can cause the hinges to pull out of the frame, which may damage both the doors and the hinges. - Page 34 Maintenance Section 4 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 020007115 06/27/2019...
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Page 35: Troubleshooting
Section 5 Troubleshooting Troubleshooting Charts See also “Dispensing Flowchart” on page 36 DISPENSING ISSUES Problem Cause Correction Coffee does not dispense Power Is there power to the unit? Plug in unit. Product keg is empty Change out the product keg. See “Keg Change” on page 24 Keg connectors not connected Check keg connectors, See “Keg Change”... -
Page 36: Dispensing Flowchart
Troubleshooting Section 5 DISPENSING ISSUES Problem Cause Correction Cleaning button blinking ON/OFF rapidly Unit is in an error state and cleaning process has Hold Prime/Clean button until the LED turns stopped., keg empty. OFF. (See “Error Code” on page 44) Replace keg System fails to prime. -
Page 37: Pouring
Section 5 Troubleshooting POURING If coffee does not pour out of taps items to check are; 1. Verify connections to keg and if coffee keg is empty. If keg is empty follow replacement steps on page 24. 2. If keg has coffee check nitrogen level at nitrogen tank. •... -
Page 38: Pump Flowchart
Troubleshooting Section 5 PUMP FLOWCHART CHECK POWER VERIFY 120VAC AT VERIFY PUMP WILL NOT HARNESS ON POWER SUPPLY POWERCORD FUNCTION INLET CONNECTOR AND OUTLET IS 24VDC AT REPLACE POWER POWER SUPPLY SUPPLY OUTLET ARE BOTH REPLACE ONE, INLINE FUSES OR BOTH, FUSES VERIFY +24VDC TO VERIFY +15VDC AT VERIFY WIRING... -
Page 39: No Power Flowchart
Section 5 Troubleshooting NO POWER FLOWCHART UNIT HAS NO IS UNIT PLUG UNIT IN DOES UNIT ISSUE POWER PLUGGED IN HAVE POWER RESOLVED VERIFY IF NO POWER POWERCORD See also “Refrigerated Cabinet Flowchart” on page 40 REFRIGERATOR CABINET ISSUES Problem Cause Correction Cabinet not running... -
Page 40: Refrigerated Cabinet Flowchart
Troubleshooting Section 5 REFRIGERATED CABINET FLOWCHART Plug In, Reset Breaker Power Supplied? Evaporator Fan Power To Fan Motor? Replace Motor Shaft Turns? Energized? Repair Wiring Replace Fan Blade Refrigerator Is Refrigerator Is Adjusting Opens Replace Thermostat Warm? Cooling Product? Thermostat? Verify New Setting Cycles Too Much Warm Product, Machine On/Off... -
Page 41: Cabinet Temperature Out Of Range
Section 5 Troubleshooting CABINET TEMPERATURE OUT OF RANGE HIGH PRODUCT TEMPERATURE Check Refrigeration System & Door Seal Check Duct Cooling Fan Temperature in reach-in unit above or below acceptable limits. • Product temperature is greater than 42°F. Above temperature limit: •... -
Page 42: Refrigeration System Diagnostics
Troubleshooting Section 5 Refrigeration System Diagnostics SUCTION PRESSURE HIGH CHECKLIST Improper Installation REFRIGERATION SYSTEM CHECKLISTS • Refer to “Installation/Visual Inspection Checklist” Installation/Visual Inspection Checklist Discharge Pressure Inadequate Clearances • Discharge pressure is too high and is affecting suction • Check all clearances, on sides and back. pressure Sides 0"... -
Page 43: Controls
Section 6 Controls Prime/Clean Button PRIMING MODE The Prime/Clean button is located in the upper left corner of the refrigeration cabinet. This button is used for priming • Press once to prime the coffee line. The LED around the the system with coffee, cleaning, and displaying error codes button will flash ON once, then OFF signifying that the using the blue LED ring around the button. -
Page 44: Cleaning Mode
Controls Section 6 Refrigerated Cabinet CLEANING MODE • Press and hold the Prime/Clean button until the LED CONTROLS/PROGRAMMING/SETTINGS around the button turns on to place the unit into cleaning mode. After the unit is connected to power it will automatically begin operating. -
Page 45: Component Check Procedures
Section 7 Component Check Procedures Component Identification EXTERNAL Front Back TAP #2 TAP #1 Sensor Control Nozzle Nozzle Board with Tower Diffuser Drain Power Supply N₂ Quick Connect Cabinet Door Compressor Part Number 020007115 06/27/2019... -
Page 46: Power Supply
Component Check Procedures Section 7 POWER SUPPLY HIGH PRESSURE CUTOUT (HPCO) CONTROL Location Function The 24 VDC power supply is located behind the left side Protects the compressor by interrupting the control signal panel. to the control board. Excessive high side pressure operates the HPCO. -
Page 47: Compressor Electrical Diagnostics
Section 7 Component Check Procedures COMPRESSOR ELECTRICAL DIAGNOSTICS DIAGNOSING START COMPONENTS The compressor does not start or will trip repeatedly on If the compressor attempts to start, or hums and trips the overload. overload protector, check the start components before replacing the compressor. -
Page 48: Compressor Electrical Diagnostics
Component Check Procedures Section 7 COMPRESSOR ELECTRICAL DIAGNOSTICS COMPRESSOR DRAWING LOCKED ROTOR Location To determine if the compressor is seized, check the amp draw while the compressor is trying to start. On the base unit behind the rear panels. The two likely causes of this are a defective starting Specification component and a mechanically seized compressor. -
Page 49: Filter-Driers
Section 7 Component Check Procedures FILTER-DRIERS Function To remove moister and particulates from the refrigerant. This will prevent premature failure of the compressor and blocking of restrictor devices. Specification The size of the filter-drier is important due to a critical refrigerant charge. -
Page 50: System Contamination Clean-Up
Component Check Procedures Section 7 System Contamination Clean-Up GENERAL DETERMINING SEVERITY OF CONTAMINATION This section describes the basic requirements for restoring System contamination is generally caused by either contaminated systems to reliable service. moisture or residue from compressor burnout entering the refrigeration system. -
Page 51: Cleanup Procedure
Section 7 Component Check Procedures CLEANUP PROCEDURE Mild System Contamination 9. Follow the normal evacuation procedure, except replace the evacuation step with the following: 1. Replace any failed components. 2. If the compressor is good, change the oil. A. Pull vacuum to 1000 microns. Break the vacuum with dry nitrogen and sweep the system. -
Page 52: Replacing Pressure Controls
Component Check Procedures Section 7 REPLACING PRESSURE CONTROLS Without Removing Refrigerant Charge Important This is a required in-warranty repair procedure. 1. Disconnect power. 2. Follow all manufacturer’s instructions supplied with the pinch-off tool. Position the pinch-off tool around the tubing as far from the pressure control as feasible. Clamp down on the tubing until the pinch-off is complete. -
Page 53: Charts
Section 8 Section 8 Charts Charts Total System Refrigerant Charge This information is for reference only. Warning Refrigerant type and amount varies by model. Machines may use R-404A or R-290 refrigerant. Always refer to model/serial plate to identify refrigerant type and amount. - Page 54 Charts Section 8 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 020007115 06/27/2019...
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Page 55: Diagrams
Section 9 Diagrams WIRING DIAGRAM Part Number 020007115 06/27/2019... -
Page 56: Plumbing Diagram
Diagrams Section 9 PLUMBING DIAGRAM NITROGEN COFFEE NITRO COFFEE Part Number 020007115 06/27/2019... -
Page 57: Programmable Logic Controller (Plc) State Diagrams
Section 9 Diagrams PROGRAMMABLE LOGIC CONTROLLER (PLC) STATE DIAGRAMS Start Up T <= t boot Software Boot POWER OFF Sytem Power ON Pump == OFF SVs == CLOSED T > t T > t boot boot && && PS = NORMAL PS = NORMAL &&... - Page 58 Diagrams Section 9 Pouring Plain Chilled Coffee Pour Pump == OFF NI = FULL || DEC SVs == OPEN Pouring Still TS = OPEN && NI = FULL TN = CLOSED && && PS = NORMAL NI Filling NI = EMPTY || INC Pump == ON SVs == OPEN TS = TN =CLOSED...
- Page 59 Section 9 Diagrams Pouring Both Pour Pump == OFF NI = FULL || DEC SVs == OPEN Pouring Both TS = TN = OPEN NI = FULL && && PS = NORMAL NI Filling NI = EMPTY || INC Pump == ON SVs == OPEN TS = TN =CLOSED Keg Empty...
- Page 60 Diagrams Section 9 Keg Change Keg Empty LED == OFF Keg Change Disconnect Keg Pump == OFF SVs == CLOSED Keg Disconnected LED == OFF Pump == OFF && SVs == CLOSED PS = NORMAL LED Flash LED == ON Pump == ON SVs == CLOSED ) <= T <= (t...
- Page 61 Section 9 Diagrams Low Pressure Low Pressure PS = LOW Pump == OFF SVs == CLOSED PS = NORMAL PS = NORMAL && && Pour State Keg Change Timing Parameters Timing Parameters Designator Value Description POR: Software Boot time boot Cleaning Mode: NI Tank Flood time Cleaning Mode: Dispense Taps Flush time Cleaning Mode: Solution Soak time...
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- Page 64 To learn how Manitowoc Foodservice and its leading brands can equip you, visit our global web site at www.manitowocfoodservice.com, then discover the regional or local resources available to you. ©2015 Manitowoc Foodservice except where explicitly stated otherwise. All rights reserved. Continuing product improvement may necessitate change of specifications without notice. Part Number 020007115 06/27/2019...
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