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Part Number: 9290312   October/22/2018 15

Section 2 

Installation

KEG & PUMP REGULATORS

5.  Once the nitrogen line is hooked up to the unit check the 

pressures on the two (2) regulators located in the back of 

the unit.

Regulator 1

Keg

Regulator 2

Nitrogenator

For 60Hz Iachines

6.  Verify or set Regulator 1- Nitrogen Supply to Coffee Keg.

•  Set to 16 psi +/- 2 psi  

(.110 MPa, 110 kPa, 1.10 bar).

7.  Verify or set Regulator 2- Nitrogen Supply to Nitrogenator.

•  Set to 34 psi +/- 2 psi  

(.234 MPa, 234 kPa, 2.34 bar).

For 50Hz Iachines

8.  Verify or set Regulator 1- Nitrogen Supply to Coffee Keg.

•  Set to 22 psi +/- 2 psi  

(.152 MPa, 152 kPa, 1.52 bar).

9.  Verify or set Regulator 2- Nitrogen Supply to Nitrogenator.

•  Set to 44 psi +/- 2 psi  

(.303 MPa, 303 kPa, 3.03 bar).

If adjustments are needed the installer or technician will 

need to remove the rear cover to access the regulators.

 DANGER

ELECTRICAL SHOCK HAZARD! The power supply is 

located in the upper right behind the cover and has live 

heat sinks. Unplug from power source when removing 

cover.

KEG CONNECTIONS

 DANGER

Never stand directly over keg when connecting, 

disconnecting, or when keg is pressurized.

IIportant

Only use AEB Kegs. Available from Manitowoc 

FoodService.

Keg Post Collars

1.  Locate post collars and match the black to OUT post 

and gray to IN post.

Black collar on 

OUT connection 

of each keg

Gray collar on 

IN connection 

of each keg

NOTE: Color coding allows partners to match the black 

connector to black collar and gray connector to gray collar.

2.  Press each collar over the IN and OUT posts until they 

seat in the grove below the taper.

Collar Groove

Summary of Contents for N2-Fusion ND21RS00

Page 1: ...0312 October 22 2018 Nitrogen Beverage Dispensers Installation Operation Maintenance Manual This manual is updated as new information and models are released Visit our website for the latest manual Or...

Page 2: ...icates a hazardous situation that if not avoided could result in death or serious injury Caution Indicates a hazardous situation that if not avoided could result in minor or moderate injury Notic Indi...

Page 3: ...Electrical 8 Section 2 Installation Step by Step Installation 11 Pre installation Checklist 11 Remote Tower Installation 12 Nitrogen Regulator Tank Assembly 13 Nitrogen Installation Replacement 13 Ni...

Page 4: ...ning Supplies 24 Manual Keg Cleaning 25 Level 1 Daily Cleaning 26 Level 2 Weekly Cleaning Single Step Method 29 Level 2 Weekly Cleaning Three Step Method 31 Level 3 Monthly Cleaning 34 Other Operation...

Page 5: ...it when installing maintaining or servicing the unit nWarning Donotoperateequipmentthathasbeenmisused abused neglected damaged or altered modified from that of original manufactured specifications Thi...

Page 6: ...S00 30 75 78 cm ND21RS02 This dimension represents units using 1 25 3 175 cm low profile casters regular casters are 1 25 3 175 cm taller nWarning To avoid instability the installation area must be ca...

Page 7: ...ass 4 Location must have proper ventilation DO NOT install in an enclosure enclosed cabinet with no access to ambient air The location must not be near heat generating equipment or in direct sunlight...

Page 8: ...ment start up when the electrical load is highest Check all green ground screws cables and wire connections to verify they are tight before start up Minimum Circuit Amperage Chart Importan Due to cont...

Page 9: ...OTE For 220 240 VAC 50 60 Hz International Units a ground male plug must be supplied at the installation of the unit nWarning When using electric appliances basic precautions must always be followed i...

Page 10: ...10 Part Number 9290312 October 22 2018 General Information Section 1 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 11: ...should be noted and reported to the delivering carrier immediately Check the lower portion of the unit to be sure casters are not bent Visually inspect the refrigeration package compressor compartmen...

Page 12: ...and tower mount screw holes will be drilled 3 Cut and drill holes in the counter using the markings NOTE Drip trays equipped with a drain will need a 7 8 2 22 cm hole drilled into the counter using t...

Page 13: ...death or injury when the cylinder valve is opened 2 ALWAYS follow correct procedures when cylinders are changed 3 ALWAYS secure the cylinder in an upright position with a chain 4 NEVER drop or throw a...

Page 14: ...d always check the locking collars on the taps are tight prior to connecting the Nitrogen supply line If these collars are loose they can leak at the tower shank when pressurized Flow Control Locking...

Page 15: ...si 2 psi 303 MPa 303 kPa 3 03 bar If adjustments are needed the installer or technician will need to remove the rear cover to access the regulators DANGER ELECTRICAL SHOCK HAZARD The power supply is l...

Page 16: ...See Keg Change on page 21 Priming the System on page 20 5 The system is now ready to be primed 6 Press the Prime Clean button located in the upper left corner of the refrigeration cabinet once to pri...

Page 17: ...LENOID VALVE TAP 1 PLAIN COFFEE TAP 2 NITRO COFFEE FILTER STRAINER PUMP N NITROGENATOR TANK NITROGENATED COFFEE OUT TO TAP 2 PLAIN CHILLED COFFEE TO NITROGENATOR PLAIN CHILLED COFFEE PLAIN CHILLED COF...

Page 18: ...p hinge pin from door 4 Use a putty knife or similar tool to remove both plugs from door to expose alternate hinge pin locations and re install the plugs in original hinge pin locations 5 Install top...

Page 19: ...ently of the compressor PRIME CLEAN BUTTON The Prime Clean button is located in the upper left corner of the refrigeration cabinet This button is used for priming the system with coffee cleaning and d...

Page 20: ...g Importan If priming fails to complete the system will go into an error state and the Prime Clean button LED will blink continuously until the error is cleared NOTE If error occurs See Clearing Error...

Page 21: ...S IN gray fitting from the keg by pulling up on the ring around the connector to release from the post Pull up on ring around connector to release 2 Leave the COFFEE OUT black fitting connected to the...

Page 22: ...mit of the system of 100 psi 689 MPa 689 kPa 6 89 bar When valve relieves there may be a quick pressure relief sound heard coming from cabinet Relief sound shouldn t last more than a few seconds and m...

Page 23: ...not damage the refrigeration circuit when installing maintaining or servicing the unit nWarning Never Use Steel Pads Wire Brushes or Scrapers Importan Never use a high pressure water jet for cleaning...

Page 24: ...in resistant and easy to clean Products containing abrasives will damage the coating and scratch the panels Daily cleaning may be followed by an application of stainless steel cleaner which will elimi...

Page 25: ...Duty Multi Purpose Sink Detergent from the dispenser at the back room sink or other approved cleaning solution mixed to the proper concentration with warm tap water in the keg 3 Use the urn brush to s...

Page 26: ...efore wiping off TAP 1 Surface TAP 2 Importan TAP 2 Contains an o ring diffuser disc and diffuser 2 Spray each nozzle and allow to air soak for 15 minutes or as directed by manufacturer before wiping...

Page 27: ...that may still be in the line or bowl during removal C Grasp the bowl and rotate counterclockwise to loosen and remove the bowl Strainer Gasket Bowl NOTE The strainer is a metal mesh ring that will be...

Page 28: ...28 Part Number 9290312 October 22 2018 Maintenance Section 4 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 29: ...proper weekly cleaning See Manual Keg Cleaning on page 25 Level 3 Monthly Cleaning on page 34 Coffee Delivery System Cleaning Sanitizing 1 Disconnect coffee keg and set aside Clean In line Strainer 2...

Page 30: ...cleaning process will need to start over from the beginning after a two 2 minute wait NOTE If an error is encountered at any time during cleaning process the cleaning button will blink ON OFF rapidly...

Page 31: ...eg connectors cleaning solution keg 6 Press and release the Prime Clean button to prime the system with cleaning solution The LED around the button will flash ON then OFF Prime Clean Button Cleaning K...

Page 32: ...button turns on to place the unit into cleaning mode NOTE Cleaning button will illuminate blue in color around the button indicating unit is in cleaning mode 7 Unit will automatically run through the...

Page 33: ...t Step 1 and 2 for other keg connectors Keg Connector Sanitizing Frequency Every week or as required 1 Mix proper concentration of approved sanitizing solution in clean bucket and place keg connectors...

Page 34: ...Components Wipe down interior surfaces and any spills Caution Attention and care should be used to avoid spraying any electrical component fans thermostat and sensor connections with any of the fluids...

Page 35: ...pull out of the frame which may damage both the doors and the hinges In some cases this may require qualified service agents or maintenance personnel to perform repairs Door Adjustment If the door nee...

Page 36: ...36 Part Number 9290312 October 22 2018 Maintenance Section 4 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 37: ...the thermometer reads below 50 F Refer to refrigeration section checklist See Controls Programming Settings on page 19 and Keg Change on page 21 Coffee keeps leaking from the clear drain hose The nit...

Page 38: ...s are closed when not in use Avoid prolonged door openings Door gasket s not sealing properly Check gasket condition Adjust door or replace gasket if necessary Dirty condenser coil Clean the condense...

Page 39: ...heck are 1 Verify connections to keg and if coffee keg is empty If keg is empty follow replacement steps on page 16 2 If keg has coffee check nitrogen level at nitrogen tank If outlet pressure drops b...

Page 40: ...40 Part Number 9290312 October 22 2018 Troubleshooting Section 5 THIS PAGE INTENTIONALLY LEFT BLANK...

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Page 44: ...emier chain operators or growing independents with industry leading equipment and solutions Our cutting edge designs and lean manufacturing tactics are powered by deep knowledge operator insights and...

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