Manitowoc Multiplex 42MA04 User manual

Part Number 020002365 08/25/2015
Post Mix Soda and Super-Chil™
Refrigeration Unit with Electronic Control
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website fo rthe latest manual.
www.manitowocbeverage.com/us

Safety Notices
As you work on Multiplex 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 Multiplex 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 Multiplex equipment. Read and understand
this manual. It contains valuable care and maintenance
information. If you encounter problems not covered
by this manual, do not proceed, contact Manitowoc
Beverage Equipment. We will be happy to provide
assistance.
Important
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the warranty.
Important
New hose sets must be used when installing this
equipment. Old hose-sets should not be reused.
nWarning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified from
that of original manufactured specifications.
nWarning
The installer is responsible to provide a suitable plug
meeting all requirements, or a means for disconnection
must be incorporated in the wiring according to the
wiring rules.
nWarning
This appliance is intended to be used indoors in kitchens
or back rooms of food/restaurant establishments.
nWarning
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.
NOTE: SAVE THESE INSTRUCTIONS.
We reserve the right to make product improvements at
any time. Specifications and design are subject to change
without notice.

Table of Contents
Part Number 020002365 08/25/2015 3
Section 1
General Information
Read This Manual ...............................................................................................................5
Unit Inspection ...................................................................................................................5
Model Numbers..................................................................................................................5
How to Read a Model Number .......................................................................................... 5
Accessories..........................................................................................................................6
Special Applications...........................................................................................................6
Attention: Marine Installations..........................................................................................................6
Outdoor Applications ...........................................................................................................................6
Serial Plate Location ..........................................................................................................7
Warranty Information ........................................................................................................7
Section 2
Installation
General................................................................................................................................9
Dimensions and Clearances — All Models .......................................................................9
Remote Condenser............................................................................................................................. 10
Safe Installation Dos and Don’ts.....................................................................................10
Location Requirements....................................................................................................11
Clearances.............................................................................................................................................. 11
Ratings..................................................................................................................................................... 11
Kitchen Equipment Installer Representative Responsibilities ............................................ 11
Requirements for Post Mix Refrigeration Units........................................................................ 11
Installer Instructions........................................................................................................12
Preparation............................................................................................................................................ 12
Electrical............................................................................................................................12
General.................................................................................................................................................... 12
Minimum Circuit Ampacity.............................................................................................................. 12
Electrical Requirements .................................................................................................................... 12
Specifications........................................................................................................................................ 12
Grounding Instructions..................................................................................................................... 13
Plumbing/Water Supply ..................................................................................................14
Plumbing Potable Water................................................................................................................... 14
Plumbing Requirements – General............................................................................................... 14
Water Supply......................................................................................................................................... 14
Plumbing Circuit Diagrams — Models 42, 44 and SC1000 .................................................. 15
Plumbing Circuit Diagrams — Models 50 and SC2000 ......................................................... 18
Refrigeration Unit Installation........................................................................................20
Unpacking and Inspecting............................................................................................................... 20
Unit Installation Overview ............................................................................................................... 20
Positioning of Refrigeration Unit................................................................................................... 21
Equipment Placement....................................................................................................................... 21
Electrical Connections....................................................................................................................... 21
Tower Installation.............................................................................................................21
Conduit Installation .........................................................................................................22
Proper Use of John Guest Fittings................................................................................................. 22
Connecting Supply Lines.................................................................................................................. 23
Routing Insulated Conduit............................................................................................................... 25
Connecting Insulated Conduit at the Unit................................................................................. 25

4 Part Number 020002365 08/25/2015
Table of Contents (continued)
Connecting Insulated Supply Lines.............................................................................................. 25
Insulating Connections ..................................................................................................................... 27
Aeroquip Connection.......................................................................................................27
Condenser and Pre-charged Lines Installation..............................................................27
Remote Condenser Requirements................................................................................................ 27
Pre-charged Refrigeration Line Requirements......................................................................... 28
Connecting the Pre-charged Refrigeration Lines.................................................................... 29
Testing...............................................................................................................................29
Testing CO2Circuit for Leaks............................................................................................................ 29
Testing Syrup Circuit (5 gallon tanks only)................................................................................. 29
Preparing Ice Bank ..........................................................................................................30
Building an Ice Bank........................................................................................................................... 30
Installation Checklist .......................................................................................................30
Section 3
Operation
Typical System..................................................................................................................31
How the Multiplex Works.................................................................................................32
Start-Up.............................................................................................................................32
Placing Equipment in Operation................................................................................................... 32
Placing the Syrup System in Operation....................................................................................... 32
Sequence of Operation....................................................................................................33
Electronic Control................................................................................................................................ 33
Equipment Setup and Close Procedure..........................................................................36
Equipment Setup Procedure........................................................................................................... 36
Equipment Close Procedure............................................................................................................ 36
Section 4
Maintenance
Maintenance Schedule ....................................................................................................39
Periodic Maintenance For Equipment (Listed By Major Components)............................ 39
Cleaning and Sanitizing the Dispensing Valves and Product Lines .................................. 40
Cleaning Equipment and Supplies .................................................................................40
Sanitizing..........................................................................................................................41
Beverage System Cleaning .............................................................................................................. 41
Bag-In-Box System Sanitation ........................................................................................................ 41
Figal Beverage System....................................................................................................................... 42
Back-Flow Preventer Maintenance .................................................................................43
Shipping, Storage and Relocation ..................................................................................43
Section 5
Troubleshooting
Checklist............................................................................................................................45
Error Notes........................................................................................................................46
E1, E2, & E3 Flowchart......................................................................................................47
E4, E5, & E6 Flowchart......................................................................................................48
E7, E8, & E9 Flowchart......................................................................................................49

Part Number 020002365 08/25/2015 5
Read This Manual
Manitowoc Food Service developed this manual as a
reference guide for the owner/operator and installer of this
equipment. Please read this manual before installation or
operation of the machine. A qualified service technician
must perform installation and start-up of this equipment.
Consult Section 5 within this manual for service assistance.
If you cannot correct the service problem, call your
Manitowoc Beverage Equipment (MBE) Service Agent or
Distributor. Always have your model and serial number
available when you call.
Your Service Agent _________________________________
Service Agent Telephone Number_____________________
Your Local MBE Distributor __________________________
Distributor Telephone Number _______________________
Model Number ____________________________________
Serial Number_____________________________________
Installation Date ___________________________________
Unit Inspection
Thoroughly inspect the unit upon delivery. Immediately
report any damage that occurred during transportation
to the delivery carrier. Request a written inspection report
from a claims inspector to document any necessary claim.
nWarning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified from
that of original manufactured specifications.
Model Numbers
This manual covers the following models:
Refrigeration Unit
42MA04, 42 MR04, 42MW04, 42MAX04,
42MRX04, 42MWX04, 44MA04, 44MAX04T,
44MW04, 44MWX04T, 44MR04, 44MRX04T,
44EAX04T, 44EWX04T, 44GA04, 44GAX04T,
44GW04, 44GWX04T, 44GR04, 44GRX04T,
SC1000A, SC1000R, SC1000W, SC1000AX,
SC1000RX, SC1000WX, 50MA04, 50MAX04,
50MR04, 50MRX04, 50MW04, 50MWX04,
50MR04Q/T, 50GA04, 50GAX04, 50GR04,
50GRX04, 50GW04, 50GWX04, 50GR04Q/T,
SC2000A, SC2000R, SC2000W, SC2000AX,
SC2000RX, SC2000WX
How to Read a Model Number
Special Configuration
04 - R404a refrigerant
Model Prefix Model Suffix
Model Base
50M A 04 X
A - Air-cooled
AX - Air-cooled, international
R - Remote
RX - Remote, international
W - Water-cooled
WX - Water-cooled, international
Condenser
Type
44M - 1 hp
44E - 1 hp, TUV Approved
44G - 1 hp, Energy Saver
50M - 2.2 hp
50G - 2.2 hp Energy Saver
SC1000 - 1 hp
SC2000 - 2.2 hp
Section 1
General Information

6 Part Number 020002365 08/25/2015
General Information Section 1
Accessories
Depending on store type and location, various optional
equipment (such as CO2Panel, water filter kit, water booster
kit, etc.) may be added to this system. Install and connect
any optional equipment in the desired location according
to the installation instructions provided with these kits/
equipment.
Special Applications
ATTENTION: MARINE INSTALLATIONS
nWarning
This unit is for use on vessels over 66 ft (20 m) in length.
This unit must not be installed in the engine space of a
gasoline-powered ship.
NOTE: This unit must be secured to the vessel during
installation. Models with part numbers beginning with the
letters TS are NOT marine listed.
OUTDOOR APPLICATIONS
TS Multiplex Beverage Recirculating units are approved and
listed by Underwriters Laboratories (UL). However they are
not UL approved for weather exposure applications. These
units must be installed in areas where adequate protection
from the elements is provided, all other models are ETL
listed.

Part Number 020002365 08/25/2015 7
Section 1 General Information
Serial Plate Location
Warranty Information
Consult your local MBE Distributor for terms and conditions
of your warranty. Your warranty specifically excludes all
beverage valve brixing, general adjustments, cleaning,
accessories and related servicing.
Your warranty card must be returned to MBE to activate
the warranty on this equipment. If a warranty card is
not returned, the warranty period can begin when the
equipment leaves the MBE factory.
No equipment may be returned to MBE without a written
Return Materials Authorization (RMA). Equipment returned
without an RMA will be refused at MBE’s dock and returned
to the sender at the sender’s expense.
Please contact your local MBE distributor for return
procedures.

8 Part Number 020002365 08/25/2015
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK

Part Number 020002365 08/25/2015 9
General
• Refrigeration units require stand or 6" (15.2 cm) legs.
Refrigeration unit cannot be placed directly on floor.
• Conduit can be run through floor or ceiling chase.
• Syrup supply can be located on stand or adjacent to
refrigeration unit.
Dimensions and Clearances — All Models
Wall
6" (15.2 cm)
Diameter Chase minimum
3-7/8" (9.8 cm) Diameter
(4-7/8" [12.4 cm] Diameter
on Model 50) Air Flow
Control
Switches
18"
(45.7 cm)
minimum
J
Electrical
Junction Box
6" (15.2 cm) minimum
12"
(30.5 cm)
minimum
Wall
Wall
Top View
Front ViewSide View
P
Wall
Electrical
Junction Box
Incoming Water
Line
Incoming CO2
Supply Line
Incoming Syrup
Supply Lines
Drain Connection
W
Ceiling
Wall
18" (45.7 cm)
minimum
I
H
CO2Regulator
Panel (Optional)
NDrain Connection
Floor drain should be located
within 6 ft (183 cm) of unit
Wall
Conduit to
Dispensing Towers
D
Water Condenser Connections
(Models 42, 44 and 50 only)
K
Incoming Water
Connection
Drain Connection
L
M
Model W D H I
(with stand) J K L M N P
42, 44 &
SC1000
39-3/4"
(101 cm)
24-3/4"
(62.9 cm)
28-1/4"
(72.4 cm)
60-3/4"
(154.3 cm)
11"
(28 cm)
3-1/2"
(8.9 cm)
12"
(30.5 cm)
4"
(10.2 cm)
6"
(15.2 cm)
12"
(30.5 cm)
50 &
SC2000
42-1/4"
(107.3 cm)
28-1/4"
(71.8 cm)
32-1/4"
(81.9 cm)
66-3/4"
(169.5 cm)
11"
(28 cm)
4"
(10.2 cm)
19"
(48.2 cm)
19"
(48.2 cm)
8-1/2"
(21.6 cm)
14"
(35.6 cm)
Section 2
Installation

10 Part Number 020002365 08/25/2015
Installation Section 2
REMOTE CONDENSER
OPTIONAL
38.00" (96.52 cm)
34.00" (86.36 cm)
30.00" (76.20 cm) 29.50"
(74.93 cm)
27.94"
(70.97 cm)
1.50"
(3.81 cm)
6.50"
(16.51 cm)
29.16"
(74.06 cm)
OPTIONAL
20.00" (50.80 cm)
16.00" (40.64 cm)
12.00" (30.48 cm)
14.62"
(37.13 cm)
4.00"
(10.16 cm)
3.50"
(8.89 cm)
6.00"
(15.24 cm)
Safe Installation Dos and Don’ts
nWarning
Read the following warnings before beginning an
installation. Failure to do so may result in possible death
or serious injury.
• DO adhere to all National and Local Plumbing and
Electrical Safety Codes.
• DO turn OFF incoming electrical service switches when
servicing, installing, or repairing equipment.
• DO check that all flare fittings are tight. This check must
be performed with a wrench to ensure a quality seal.
• DO inspect pressure on regulators before starting up
equipment.
• DO protect eyes when working around refrigerants.
• DO use caution when handling metal surface edges of
all equipment.
• DO handle CO2cylinders and gauges with care. Secure
cylinders properly against abrasion.
• DO store CO2cylinder(s) in well ventilated areas.
• DO NOT exhaust CO2gas (example: syrup pump) into
an enclosed area, including all types of walk-in coolers,
cellars, and closets.
• DO NOT throw or drop a CO2cylinder. Secure the
cylinder(s) in an upright position with a chain.
• DO NOT connect the CO2cylinder(s) directly to the
product container. Doing so will result in an explosion
causing possible death or injury. It is best to connect the
CO2cylinder(s) to a regulator(s).
• DO NOT store CO2cylinders in temperature above 125°F
(51.7°C) near furnaces, radiator or sources of heat.
• DO NOT release CO2gas from old cylinder.
• DO NOT touch refrigeration lines inside units; some may
exceed temperatures of 200°F (93.3°C).
NOTICE: All utility connections and fixtures must be sized,
installed, and maintained in accordance with Federal, State,
and Local codes.

Part Number 020002365 08/25/2015 11
Section 2 Installation
Location Requirements
CLEARANCES
Control Side (Right) 18" (45.7 cm)
Tower Connection Side (Left) 12" (30.5 cm)
Back Side 6" (15.2 cm)
Ceiling 18" (45.7 cm)
RATINGS
Model Evaporator Rating at
20°F (-6.5°C) Heat Rejection (Max.)
Model 42
Model 44
9,700 BTUH
2,340 kcal/hr
13,576 BTUH
3,685 kcal/hr
Model SC1000 9,700 BTUH
2,340 kcal/hr
13,576 BTUH
3,685 kcal/hr
Model 50 14,900 BTUH
3,310 kcal/hr
20,400 BTUH
4,285 kcal/hr
Model SC2000 14,900 BTUH
3,310 kcal/hr
20,400 BTUH
4,285 kcal/hr
Select a location for the refrigeration unit that meets
the requirements of the building plans, local codes, and
personnel. The unit must be positioned for free airflow as
well as for future service. The following requirements must
be met:
• 300 GPH (1135 LTR/hr) potable water supply (all models)
• Beverage quality CO2gas (bulk or bottled supply) with a
minimum 3/8" (0.96 cm) line
• One Bag-In-Box (BIB) container of each post mix syrup
flavor.
NOTE: Refer to nameplate on side of refrigeration unit for
voltage and amperage specifications. Make all electrical
connections at the junction box located at the top rear of
unit. Optional equipment may require additional power
supplies.
NOTE: Potable water connections to the equipment must
comply with local plumbing code requirements, particularly
the back-flow prevention requirements.
NOTE: Operating decibel level is above 70db.
nWarning
Carbon Dioxide (CO2) displaces oxygen. Exposure to a
high concentration of CO2gas causes tremors, which
are followed rapidly by loss of consciousness and
suffocation. If a CO2gas leak is suspected, particularly
in a small area, immediately ventilate the area before
repairing the leak. CO2lines and pumps must not be
installed in an enclosed space. An enclosed space can
be a cooler or small room or closet. This may include
convenience stores with glass door self serve coolers. If
you suspect CO2may build up in an area, venting of the
BIB pumps and/or CO2monitors must be utilized.
KITCHEN EQUIPMENT INSTALLER REPRESENTATIVE
RESPONSIBILITIES
Prior to scheduling Multiplex Equipment installer, the
following steps listed below must be completed:
1. Usable floor sewer drain.
2. Refer to electrical requirement chart for your model.
3. Usable potable water.
4. CO2Gas (bulk or bottled supply); minimum 3/8" line.
5. One 5 gallon (19 L) container or Bag-In-Box container of
each post mix syrup flavor.
6. A 120 VAC, 3-wire, 1 Phase, 60 Hz dual wall receptacle
for optional electrical equipment (domestic only).
NOTE: Do not schedule the authorized Multiplex Equipment
Installer until all of the above have been completed. It will
only result in charge-backs to you for the unnecessary trips.
REQUIREMENTS FOR POST MIX REFRIGERATION UNITS
• Conduit can be run through floor or ceiling chase.
• 60°F (15.6°C) minimum and 100.4°F (38°C) maximum
operating ambient conditions.
• For indoor installation only.
• Syrup supply can be located on stand or adjacent to
refrigeration unit.

12 Part Number 020002365 08/25/2015
Installation Section 2
Installer Instructions
Important
The remainder of these instructions is to be completed
by an authorized Multiplex Installer.
These equipment instructions are intended to assist
qualified personnel in the unpacking, locating and the
initial operation of the Multiplex Beverage Equipment Post
Mix Refrigeration Unit.
Important
This publication must be saved for future reference.
Read instructions before attempting installation.
PREPARATION
The Multiplex Beverage Equipment Post Mix Refrigeration
Unit is pre-assembled in the factory and requires minimum
installation.
For future reference or to be used when ordering parts,
record the Model Number, Serial Number, Part Numbers
of Unit, Condenser (if remote), Towers, etc., and Date of
Installation on the inside of this Manual. Leave manual on
site in a safe place. Do not discard manual.
Ambient Location Requirement
This equipment is rated for indoor use only. It will not
operate in sub-freezing temperature. In a situation when
temperatures drop below freezing, the equipment must be
turned off immediately and properly winterized. Contact
the manufacturer for winterization process.
Electrical
GENERAL
nWarning
All wiring must conform to local, state and national
codes.
MINIMUM CIRCUIT AMPACITY
The minimum circuit ampacity is used to help select the
wire size of the electrical supply. (Minimum circuit ampacity
is not the beverage/ice machine’s running amp load.)
The wire size (or gauge) is also dependent upon location,
materials used, length of run, etc., so it must be determined
by a qualified electrician.
ELECTRICAL REQUIREMENTS
Refer to Ice Machine Model/Serial Plate for voltage/
amperage specifications.
SPECIFICATIONS
Model Volt/Cycle/
Phase
Minimum Circuit
Amps
Breaker Compressor
42
44
208-230/60/1
230/50/1
20.6
20.6
30A
25A
1 hp
0.75 kW
SC1000 208-230/60/1
230/50/1
20.6
20.6
30A
25A
1 hp
0.75 kW
50 208-230/60/3
230/400/50/3
25.2
11.6
30A
20A
2.2 hp
1.6 kW
SC2000 208-230/60/3
230/400/50/3
25.2
11.6
20A
15A
2.2 hp
1.6 kW

Part Number 020002365 08/25/2015 13
Section 2 Installation
GROUNDING INSTRUCTIONS
nWarning
The beverage/ice machine must be grounded in
accordance with national and local electrical codes.
This appliance must be grounded. In the event of
malfunction or breakdown, grounding provides a path
of least resistance for electric current to reduce the
risk of electric shock. This appliance is equipped with a
cord having an equipment-grounding conductor and
a grounding plug. The plug must be plugged into an
appropriate outlet that is properly installed and grounded
in accordance with all local codes and ordinances.
nWarning
Improper connection of the equipment-grounding
conductor can result in a risk of electric shock. The
conductor with insulation having an outer surface that
is green with or without yellow stripes is the equipment
grounding conductor. If repair or replacement of
the cord or plug is necessary, do not connect the
equipment-grounding conductor to a live terminal.
Check with a qualified electrician or serviceman if the
grounding instructions are not completely understood,
or if in doubt as to whether the appliance is properly
grounded. Do not modify the plug provided with the
appliance — if it will not fit the outlet. Have a proper
outlet installed by a qualified electrician.
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
shall 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. For a permanently connected appliance — Turn
the power switch to the off position when the
appliance is not in use and before servicing or
cleaning.
h. For an appliance with a replaceable lamp —
Always unplug before replacing the lamp.
Replace the bulb with the same type.
i. For a grounded appliance — Connect to a
properly grounded outlet only. See Grounding
Instructions.

14 Part Number 020002365 08/25/2015
Installation Section 2
Plumbing/Water Supply
PLUMBING POTABLE WATER
Model Required Water
Pressure
Drain
Connections
Water
Supply
44 & SC1000 40 – 70 psig
(2.8 – 4.9 bar)
(275790.2912 -
482633.0096 Pascals)
3/4" ID
within 6 ft (2 m)
1/2" ID
EVA Line
50 & SC2000 40 – 70 psig
(2.8 – 4.9 bar)
(275790.2912 -
482633.0096 Pascals)
3/4" ID
within 6 ft (2 m)
1/2" ID
EVA Line
A 1" ID copper inlet water line equipped with a 3/4" FPT
sweat adapter with shut-off must be supplied by plumber
at rear of equipment. Appropriate floor drains must be
provided within 6 ft (183 cm) of each unit installed.
NOTE: The carbonator(s) in this unit are provided with a
vented back-flow preventer that conforms to ASSE 1022.
Potable water connections to the equipment must comply
with the basic plumbing code of the Building Officials
and Code Administrators International, Inc. (BOCA) and
the Food Service Sanitation Manual of the Food and Drug
Administration. Verify local plumbing code requirements.
PLUMBING REQUIREMENTS  GENERAL
Incoming water supply must be provided before installation
of the refrigeration unit and must comply with local
plumbing requirements.
1. A minimum 1" (2.54 cm) water supply line with a
manual shut-off valve must be plumbed at least 6 ft
(183 cm) from the unit. The incoming water supply
pressure must not exceed 70 psi static (4.8 bar)
(482633.0096 Pascals) and be no less than 40 psi (2.8
bar)(275790.2912 - Pascals) dynamic. If supply water
pressure is greater than 70 psi (4.8 bar) (482633.0096
Pascals), a water regulator will be required.
2. Locate the drain hose, bracket, and two screws
provided in the installation kit. Attach the drain hose to
the water bath overflow tube located on the bottom of
the refrigeration unit.
3. Connect the water manifold supply line, located on the
bulkhead panel in the motor compartment to the main
water supply. The main water supply shut-off valve
must remain in the OFF position. If a water filter is to
be installed, connect the line to the outlet fitting of the
filter. Plumb according to applicable plumbing codes.
Drain Hose
Bottom
of Unit
Bracket
Screw
Drain Hose Connection
4. When a water-cooled condenser is installed, a copper
supply line (not supplied with unit) must be plumbed
to the 3/8" male flare fitting installed in the water
shut-off assembly. The shut-off must be placed in the
OFF position. A copper drain line (not supplied) is to
be connected to the outlet fitting of the water cooled
condenser and routed to the floor drain.
WATER SUPPLY
1. Models 42, 44, SC1000, 50 and SC2000 use a 1/2"
ID copper water supply with a shut-off, and a 1/2"
FPT connection is required for the Brix Pump Box
assemblies.
2. A 1/4" MF connection can be provided for the water
bath fill valve. This is not required if another means of
filling the water tank is available.
3. An appropriate floor drain is required within 6 ft (2 m)
of the unit.
4. Potable water connections to the equipment must
comply with the basic plumbing code of the Building
Officials and Code Administrators International, Inc.
(BOCA) and the Food Service Sanitation Manual of the
Food and Drug Administration. Verify local plumbing
code requirements.

Part Number 020002365 08/25/2015 15
Section 2 Installation
PLUMBING CIRCUIT DIAGRAMS  MODELS 42, 44 AND SC1000
Pressurized Water Circuit Diagram
To Coffee
Machine
To Ice
Machin
e
Legend
Phosphate
Feeder
(optional)
Accumulator
Tank
(optional)
To
Plain Water
Valve
Filtered Water
Pressure Gauge
Primary
Carbonator
Cooling
Coil
Carbonator
Tank
Cooling
Coil
Cooling
Coil
Circulator
Pump
Tower Tower Tower
Optional Constant Water
Pressure Booster Module
Booster
Tank
High
Pressure
Switch
HL
High
Pressure
Gauge
Low
Pressure
Switch
Constant Pressure
Booster Pump
Pump
Pressure Regulator (55 psi [3.8 bar])
Low
Pressure
Gauge
Fine Filters
(optional)
Coarse Filter
(optional)
To Optional
Water-Cooled
Condenser
Primary
Water Supply
Booster Module
Replacement Line
— Electric Solenoid V
alve
— Manual Ball V
alve
— 3-way Ball V
alve
— Pressure Relief V
alve
— Check V
alve, Ball Type
— Check V
alve,
—Vent to Atmosphere
Secondary Carbonator
(Not Used On 42M)
Cooling
Coil

16 Part Number 020002365 08/25/2015
Installation Section 2
Pre-mix Plumbing — Eight Valve Towers with Connection at Center Island
654321
6
A
5
A
4
A
3
A
2
A
1
W
7
7
A
8
8
A
61 234587
61 234587
61 234587
654321
7
8
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
61 234587
61 234587
61 234587
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
61 234578
654321
7
8
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
61 234587
61 234587
61 234587
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
61 234578
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
61 234578
Single Tower System
Two Tower System
with Connection at Center Island
Three Tower System
with Connection at Center Island
Self Serve or
Center Island Tower Drive-thru Tower
Self Serve or
Center Island Tower Drive-thru Tower
Self Serve or Center
Island Tower
Syrup
Cooling Coils
Syrup Filters
(#2 through #11
optional)
Syrup Tanks Syrup Tanks
Syrup Tanks
Syrup
Cooling Coils
Syrup Filters
(#2 through #11
optional)
Syrup
Cooling Coils
Syrup Filters
(#2 through #11
optional)
Drive-thru or
Center Island Tower

Part Number 020002365 08/25/2015 17
Section 2 Installation
Carbonated Water Plumbing — Eight Valve Towers with Connection at Unit
99
6
A
5
A
4
A
3
A
2
A
1
W
W
98
W
98
7
A
8
A
W
98
W
98
W
9
8
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
8 9 8
W
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
6
A
5
A
4
A
3
A
2
A
1
W
7
A
8
A
W8W
8 9 W
Si
ng
l
e
T
ower
S
ys
t
em w
ith C
onnec
ti
on a
tU
n
Tti
wo
T
ower
S
ys
t
em w
ith C
onnec
ti
on a
tU
nit
Three Tower System with Connection at Unit
Self Serve or
Center Island Tower Drive-thru Tower
Self Serve or
Center Island Tower Drive-thru Tower
Self Serve or Center
Island Tower (optional)
Pressurized
Filtered
Water Supply
Pressurized
Filtered
Water Supply
Pressurized
Filtered
Water Supply
Drive-thru or
Center Island Tower
Primary
Carbonator
Pump
Circulator
Pump
Water
Feeder
Carbonator
Tan
Primary
Carbonator
Pump
Circulator
Pump
Water
Feeder
Carbonator
Tan
Primary
Carbonator
Pump
Circulator
Pump
Water
Feeder
Carbonator
Tan
Carbonated
Water Circuit
eend (Water)
Plain Water
Carbonated Water

18 Part Number 020002365 08/25/2015
Installation Section 2
PLUMBING CIRCUIT DIAGRAMS  MODELS 50 AND SC2000
Pressurized Water Circuit Diagram
To Coffee
Machine
To Ice
Machine
Phosphate
Feeder
Accumulator
Tank
To Plain
Water Valve
Filtered Water
Pressure Gauge
Low Pressure
Regulator
Cooling Coil
Dispensing
Tower
Dispensing
Tower
Dispensing
Tower
Optional Constant Water
Pressure Booster Module
Booster
Tank
High
Pressure
Switch
H
L
High
Pressure
Gauge
Low
Pressure
Switch
Constant Pressure
Booster Pump
Pump
Low Pressure
Gauge
Fine Filters Coarse
Filter
To Water-Cooled
Condenser
Primary
Water Supply
Booster Module
Replacement Line
Legend
— Electric Solenoid V
alve
— Manual Ball V
alve
— 3-way Ball V
alve
— Pressure Relief V
alve
— Check V
alve, Ball Type
— Check V
alve,
—Vent to Atmosphere
Carbonator
Pump “A”
Pump Pump
Pump
Carbonator
Pump “B”
Cooling Coil Carbonator Tank “B”
Cooling Coil Cooling Coil Cooling Coil
Carbonator Tank “A”
Circulator
Pump “A”
Circulator
Pump “B”
L
Pump
By-pass (Export only)By-pass (Export only)
Low
Pressure
Switch
Syrup Tray Wash
To Danish Steamer To Filet Bun Steamer
Pressure Regulator Set at
55 psi (3.8 bar)
Required with Booster
Module

Part Number 020002365 08/25/2015 19
Section 2 Installation
CO2Gas and Compressed Air Circuit Diagram
Carbonator
Tank “B”
Legend
— Manual Shut-off Valve
— Check Valve, Ball Type — Manual 3-way Ball Valve — Connection for Optional Kits
Carbonator
Tank “A”
Sugar Free Line & Disconnect
Sugar Base Lines & Disconnects
Sugar Base Lines & Disconnects
Optional
Air/CO2
Change-
over Valve
Optional
CO2Change-over Valve
AB
Optional
Air Compresso
r
Optional Bulk CO2Tank
Set at 90-100 psi
(6.2-6.9 bar)
Optional
CO2Tank
“A”
Optional
CO2Tank
“B”
Pressure Switch
“ON” = 70 psi (4.8 bar
)
“OFF” = 90 psi (6.2 bar
)
Shake
Machin
e
CO2Shut-off to
Carbonator Tank
Medium Pressure Regulator
Set at 60 psi (4.1 bar)
Low Pressure Regulator
Set at 15 psi (1 bar)
Shake Machine
Shut-off Valve
Optional CO
2
Regulators
Set at 90-100 psi
(6.2-6.9 bar
)

20 Part Number 020002365 08/25/2015
Installation Section 2
Refrigeration Unit Installation
UNPACKING AND INSPECTING
Carefully inspect the refrigeration unit immediately upon
unpacking. Verify the equipment and parts received against
the Bill of Lading. Locate all items according to packing
list and inspect for possible damage caused by shipping.
Notify the appropriate carrier if necessary and contact MBE
immediately for replacement of parts if discrepancies exist.
1. The Refrigeration Unit is pre-assembled in the factory
and requires a minimum installation. Locate the
following parts supplied with the unit.
2. Kit assembly includes:
ū Tab clamps for conduit, syrup and circulating and
carbonated water coils
ū Bracket for drain hose and screws for mounting
ū Four 6” legs
ū 6 ft (183 cm) drain hose
3. Locate any of the optional Kit Assembly for mounting
to match the type of mounting required. Install the kit
as noted in the instructions supplied.
4. Record the Model Number, Serial Number and date of
installation for future reference, or to be used when
ordering parts.
UNIT INSTALLATION OVERVIEW
1. Set unit in place.
2. Connect the circuit electrically. Refer to chart.
3. Connect water supply.
4. Connect the product lines from the Bag-In-Box or tank.
See the plumbing diagrams for the tower setup that
pertains to your installation.
5. Connect the drain. Locate the drain hose, bracket, and
the two screws provided in the installation kit. Attach
the drain hose to the water bath overflow tube located
on the bottom of the refrigeration unit. Route drain
hose to a floor drain.
Drain Hose
Bottom
of Unit
Bracket
Screw
6. Connect the conduit lines. Two carbonated water lines
and two product output lines.
Graided CO2
Gas Line
Color Coded
Syrup Lines
Black Water
Supply Line