Manitowoc Multiplex N2Fusion User manual

Service Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
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Part Number 020007115 06/27/2019
N₂Fusion™
Nitrogen Beverage Dispenser

Safety Notices
As you work on Manitowoc equipment, be sure to pay close
attention to the safety notices in this manual. Disregarding
the notices may lead to serious injury and/or damage to the
equipment.
Throughout this manual, you will see the following types of
safety notices:
nWarning
Text in a Warning box alerts you to a potential personal
injury situation. Be sure to read the Warning statement
before proceeding, and work carefully.
,Caution
Text in a Caution box alerts you to a situation in which
you could damage the equipment. Be sure to read
the Caution statement before proceeding, and work
carefully.
Procedural Notices
As you work on Manitowoc equipment, be sure to read the
procedural notices in this manual. These notices supply
helpful information which may assist you as you work.
Throughout this manual, you will see the following types of
procedural notices:
Important
Text in an Important box provides you with information
that may help you perform a procedure more efficiently.
Disregarding this information will not cause damage or
injury, but it may slow you down as you work.
NOTE: Text set off as a Note provides you with simple, but
useful, extra information about the procedure you are
performing.
Read These Before Proceeding
,Caution
Proper installation, care and maintenance are
essential for maximum performance and trouble-free
operation of your equipment. Visit our website www.
manitowocfsg.com for manual updates, translations, or
contact information for service agents in your area.
Important
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the warranty.
nWarning
Read this manual thoroughly before operating, installing
or performing maintenance on the equipment. Failure
to follow instructions in this manual can cause property
damage, injury or death.
nWarning
Do not use electrical appliances or accessories other
than those supplied by Manitowoc for your ice machine
model.
nWarning
Two or more people or a lifting device are required to lift
this appliance.
nWarning
This equipment contains high voltage electricity and
refrigerant charge. Installation and repairs are to be
performed by properly trained technicians aware of
the dangers of dealing with high voltage electricity and
refrigerant under pressure. The technician must also be
certified in proper refrigerant handling and servicing
procedures. All lockout and tag out procedures must be
followed when working on this equipment.
nWarning
Do not damage the refrigeration circuit when installing,
maintaining or servicing the unit.

nWarning
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications. This
appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision concerning use of the
appliance by a person responsible for their safety. Do
not allow children to play with this appliance.
nWarning
All covers and access panels must be in place and
properly secured, before operating this equipment.
nWarning
Do not obstruct machine vents or openings.
nWarning
Do not store gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.
nWarning
Do not clean with water jet.
nWarning
It is the responsibility of the equipment owner to
perform a Personal Protective Equipment Hazard
Assessment to ensure adequate protection during
maintenance procedures.
nWarning
When using electric appliances, basic precautions must
always be followed, including the following:
a. Read all the instructions before using the
appliance.
b. To reduce the risk of injury, close supervision
is necessary when an appliance is used near
children.
c. Do not contact moving parts.
d. Only use attachments recommended or sold by
the manufacturer.
e. Do not use outdoors.
f. For a cord-connected appliance, the following
must be included:
• Do not unplug by pulling on cord. To unplug,
grasp the plug, not the cord.
• Unplug from outlet when not in use and
before servicing or cleaning.
• Do not operate any appliance with a
damaged cord or plug, or after the appliance
malfunctions or is dropped or damaged in
any manner. Contact the nearest authorized
service facility for examination, repair, or
electrical or mechanical adjustment.
g. Follow applicable lock out tag out procedures
before working on equipment.
h. Connect to a properly grounded outlet only.

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Table of Contents
Part Number 020007115 06/27/2019 5
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 ................................................................................................................................................. 12
System Pressures ................................................................................................................................. 13
Section 2
Installation
Step-by-Step Installation.................................................................................................15
Pre-installation Checklist.................................................................................................................. 15
Remote Tower Installation ............................................................................................................... 16
Nitrogen Regulator & Tank Assembly .......................................................................................... 17
Nitrogen Installation/Replacement.............................................................................................. 18
Nitrogen Connections & Pressures ............................................................................................... 18
N2Quick Disconnect & Drain........................................................................................................... 19
Keg & Pump Regulators .................................................................................................................... 19
Keg Connections ................................................................................................................................. 21
Door Hinge Reversal........................................................................................................................... 22
Section 3
Operation
Product Dispense Operation...........................................................................................23
Prerequisites:......................................................................................................................................... 23
Operation .............................................................................................................................................. 23
Taps & Nozzles...................................................................................................................................... 23
Flow Control & Locking Collar ........................................................................................................ 24
Kegs.......................................................................................................................................................... 24
Keg Change ........................................................................................................................................... 24
Priming the System ............................................................................................................................ 25
Nitrogenator ......................................................................................................................................... 25
Refrigerated Cabinet Operation .....................................................................................26
In-Line Strainer..................................................................................................................................... 26

6 Part Number 020007115 06/27/2019
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........................................................................................................................... 29
General Cleaning................................................................................................................................. 29
Cleaning Supplies ............................................................................................................................... 30
Daily & Weekly Cleaning ................................................................................................................... 31
Extended Shutdown Procedure ......................................................................................32
Other Operations .............................................................................................................33
Doors/Hinges........................................................................................................................................ 33
Section 5
Troubleshooting
Dispensing Issues ............................................................................................................................... 35
Dispensing Flowchart....................................................................................................................... 36
Pouring.................................................................................................................................................... 37
Coffee Dispense System....................................................................................................................37
Pump Flowchart.................................................................................................................................. 38
No Power Flowchart........................................................................................................................... 39
Refrigerator Cabinet Issues.............................................................................................................. 39
Refrigerated Cabinet Flowchart..................................................................................................... 40
Cabinet Temperature Out of Range.............................................................................................. 41
High Product Temperature .............................................................................................................. 41
Refrigeration System Diagnostics ..................................................................................42
Refrigeration System Checklists..................................................................................................... 42
Discharge Pressure High Checklist................................................................................................ 42
Discharge Pressure Low Checklist................................................................................................. 42
Suction Pressure High Checklist .................................................................................................... 42
Suction Pressure Low Checklist...................................................................................................... 42
Section 6
Controls
Prime/Clean Button..........................................................................................................43
Priming Mode....................................................................................................................................... 43
Cleaning Mode..................................................................................................................................... 44
Error Code .............................................................................................................................................. 44
Refrigerated Cabinet........................................................................................................44
Controls/Programming/Settings................................................................................................... 44

Part Number 020007115 06/27/2019 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.............................................................................................. 48
Diagnosing Capacitors ...................................................................................................................... 48
Filter-Driers ............................................................................................................................................ 49
System Contamination Clean-Up....................................................................................50
General.................................................................................................................................................... 50
Determining Severity Of Contamination.................................................................................... 50
Cleanup Procedure ............................................................................................................................. 51
Replacing Pressure Controls ........................................................................................................... 52
Section 8
Charts
Total System Refrigerant Charge ....................................................................................53
Section 9
Diagrams
Wiring Diagram.................................................................................................................................... 55
Plumbing Diagram.............................................................................................................................. 56
Programmable logic controller (PLC) State Diagrams ........................................................... 57

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Part Number 020007115 06/27/2019 9
Model Numbers
This manual covers the following models:
MODEL NOMENCLATURE:
ND 2 1 T S 0 0
I II III IV V VI VII VIII
Dispenser Type Number of
Taps Towers Tower Mounting Handle & Nozzle Cabinet Type Electrical & Refrigerant Customer Specific
ND = Nitro Dispenser
2 = Two
(one still,
one gas)
3 = Four
(one still,
three gas)
4 = Four
(two still,
two gas)
1 = Single
2 = Dual
3 = Dual Fonts *
4 = Four Fonts *
* Each Font Mounts 1 Tap
T = Top Mount
on Base
R = Remote
Counter Top
B = Black Plastic
S = Stainless Polished
C = CoffeeWood
Handle & Polished
Stainless Nozzle
0 = 406 Star
1 = BIM Base
2 = Global Under
Counter
3 = Slimwide
Cabinet
(SBX Gen 2)
0 = 115/60 - R404a
1 = 220/60 - R404a
2 = 230-240/50 R404a
3 = 100/60 - R404a
4 = 100/50 - R404a
5 = 115/60 - R290
6 = 220/60 - R290
7 = 230-240/50 R404a
8 = 100/60 - R290
9 = 100/50 - R290
A = Double
System
NC = Nitro Coffee
About N₂Fusion™
The N₂Fusion™ Nitrogen Beverage Dispenser is a self-
contained dispensing unit that allows the operator to
dispense chilled and/or nitrogenized drink combinations of
coffee. It holds product containers or kegs in a refrigerated
reach-in base enclosure.
The operator controls the product pour on the unit using
mechanical beer style taps. Drink size options are manually
controlled. Purging and cleaning are controlled through
and internal push button located in the upper left corner
of the refrigeration cabinet. A blue LED ring will illuminate
around the button to provide feedback to the user during
purge, cleaning, and/or errors.
Periodic software updates through the PLC on the rear
of the unit may be required for maintenance, additional
features, and/or improvements.
NOTE: These units are intended for indoor use.
Serial Number Location
The serial number on N2Fusion™ Nitrogen Beverage
Dispenser is printed on the left side of the interior wall.
Always have the serial number of your unit available
when calling for parts or service.
Sample Serial Tag
Section 1
General Information

10 Part Number 020007115 06/27/2019
General Information Section 1
Specifications
DIMENSIONS
A
C
D
B
E
F
G
HI
Model A B C D E F GH I
ND21TS00
27.3”
(69cm)
34.0”
(86cm) 28.4”
(72cm)
20.7”
(53cm)
13.6”
(35cm)
16.1”
(41cm)
44.6”
(113cm)
10.6”
(27cm)
7.3”
(19cm)
ND21TS01
ND21TS02
ND21TS03
ND21TS04
ND21RS00 30.75”
(78cm) *
ND21RS02
* This dimension represents units using 1.25” (3.175cm) low profile casters, regular casters are 1.25” (3.175cm) taller.
nWarning
To avoid instability the installation area must be
capable of supporting the weight of the equipment.
Additionally the equipment must be level side to side
and front to back.
CAPACITY & WEIGHT
Model Max Capacity Volume Weight
ND21TS00
3 - 3 Gallon (11.36L) Coffee Kegs 5.7Ft3(161L) 168lbs (76kg)
ND21TS01
ND21TS02
ND21TS03
ND21TS04
ND21RS00
ND21RS02