Multiplex 2803A04 Installation Manual

Models 2803, 11M, 44M, 50M

Post-Mix Soda & SC180, SC340,

SC1000, & SC2000 Super-Chill

Refrigeration Units

Installation, Use & Care Manual

This manual is updated as new information and models are released.

Visit our website for the latest manual. www.manitowocfsg.com

America’s Quality Choice in Refrigeration

Part Number 000003912 2/10

Safety Notices

!

Warning

!

Caution

Important

!

Caution

Important

!

Warning

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:

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.

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:

Read These Before Proceeding:

Proper installation, care and maintenance are
essential for maximum performance and trouble-free
operation of your Manitowoc 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 Foodservice Group.
We will be happy to provide assistance.

Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.

NOTE: SAVE THESE INSTRUCTIONS.

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.

We reserve the right to make product improvements at any time.

Specifications and design are subject to change without notice.

Section 1
General Information

Section 2
Installation

Table of Contents (continued)

Read This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Model Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

How to Read a Model Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Special Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Attention: Marine Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Outdoor Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Serial Plate Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Dimensions and Clearances — All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Blade Tower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Safe Installation Dos and Don’ts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Soda Refrigeration Unit “Quick-Pick” Selection Chart . . . . . . . . . . . . . . . . 2-4

Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Kitchen Equipment Installer Representative Responsibilities . . . . . . . . . . . 2-5

Requirements for Post Mix Refrigeration Units . . . . . . . . . . . . . . . . . . . . . . 2-5

Installer Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Minimum Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Grounding Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Part Number 000003912 2/10

i

Table of Contents (continued)

Plumbing/Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Plumbing Potable Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Plumbing Requirements – General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Plumbing Circuit Diagrams — Model 2803 . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Plumbing Circuit Diagrams — Model 11M Root Beer . . . . . . . . . . . . . . . . . 2-10

Plumbing Circuit Diagrams — Model 44M . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Plumbing Circuit Diagrams — Model 50M . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Refrigeration Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Unpacking and Inspecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Unit Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Positioning of Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Equipment Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Tower Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Conduit Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Proper Use of John Guest Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Connecting Supply Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Routing Insulated Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Connecting Insulated Conduit at the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Connecting Insulated Supply Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Insulating Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Aeroquip Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Condenser and Pre-charged Lines Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Remote Condenser Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Pre-charged Refrigeration Line Requirements . . . . . . . . . . . . . . . . . . . . . . 2-29

Installing the Multiplex Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Connecting the Pre-charged Refrigeration Lines . . . . . . . . . . . . . . . . . . . . 2-30

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Testing CO

Testing Syrup Circuit (5 gallon tanks only) . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Preparing Ice Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Building an Ice Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Circuit for Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

2

ii Part Number 000003912 2/10

Section 3
Operation

Table of Contents (continued)

Typical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

How the Multiplex Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Differences Between the TS & SS Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Water Manifold TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Electrical TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Water Bath Access SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Water Bath Access TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Service Access SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Service Access TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Start-up (Non-ERC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Placing Equipment in Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Placing the Carbonation System in Operation . . . . . . . . . . . . . . . . . . . . . . 3-5

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Pre-mix Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Equipment Setup and Close Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Equipment Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Equipment Close Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Section 4
Maintenance

Sanitizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Back-flow Preventer Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Shipping, Storage and Relocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Section 5
Before Calling for Service

Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Beverage System Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Bag-In-Box System Sanitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Figal Beverage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Part Number 000003912 2/10

iii

Table of Contents (continued)

THIS PAGE INTENTIONALLY LEFT BLANK

iv Part Number 000003912 2/10

Section 1 General Information

!

Warning

B - Reserve Ice Bank
T - TUV approved

carbonator tank

Q/T - Quick Trip

04 - R404a refrigerant

Model Prefix Model Suffix

Model Base

11M A 04 B

A - Air-cooled
AX - Air-cooled, international
R - Remote
RX - Remote, international
W - Water-cooled
WX - Water-cooled, international

Condenser

Type

2803 & SC180 - 1/3 hp
11M & SC340 - 1/2 hp
44M & SC1000 - 1 hp
44E - 1 hp, TUV Approved
50M & SC2000 - 2.2 hp

Section 1

General Information

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

Model Numbers

This manual covers the following models:

Post Mix Soda Refrigeration Unit

2803A04, 2803AX04, 2803A04

11MA04, 11MAX04, 11MA04,

44MA04, 44MAX04T, 44MW04, 44MWX04T,

44MR04, 44MRX04T, 44EAX04T, 44EWX04T,

50MA04, 50MAX04, 50MR04, 50MRX04, 50MW04,

50MWX04, 50MR04Q/T, SC180A, SC180AX,

SC180R, SC180RX, SC180W, SC180WX, SC340A,

SC340AX, SC340R, SC340RX, SC340W,

SC340WX, SC1000A, SC1000AX, SC1000R,

SC1000RX, SC1000W, SC1000WX, SC2000A,

SC2000AX, SC2000R, SC2000RX, SC2000W,

SC2000WX

How to Read a Model Number

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.

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.

Part Number 000003912 2/10 1-1

General Information Section 1

!

Warning

Accessories

Depending on store type and location, various optional
equipment (such as CO

Panel, water filter kit, water

2

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

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.

Specifications

Model

2803 One 6-valve soda tower Bag-in-Box

11M One 6-valve soda tower or up

44M Up to two 8-valve soda towers Bag-in-Box
50M Up to two 8-valve soda towers Bag-in-Box

Number of Dispensing

Heads

to three 2-valve root beer

towers

NOTE: Super-Chill units do not apply to the above table,
they are only used to chill large amounts of water.

Typ e o f

Container

Bag-in-Box

1-2

Part Number 000003912 2/10

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.

Part Number 000003912 2/10 1-3

General Information Section 1

THIS PAGE INTENTIONALLY LEFT BLANK

1-4

Part Number 000003912 2/10

Section 2

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 CO

2

Supply Line

Incoming Syrup

Supply Lines

Drain Connection

W

Ceiling

Wall

18" (45.7 cm)

minimum

I

H

CO2 Regulator

Panel (Optional)

N

Drain Connection

Floor drain should be located

within 6 ft (183 cm) of unit

Wall

Conduit to

Dispensing Towers

D

Water Condenser Connections

(Models 44 and 50 only)

K

Incoming Water

Connection

Drain Connection

L

M

Installation

General

• Refrigeration units require stand or 6" (15.2 cm) legs. Refrigeration unit
cannot be placed directly on floor.

Dimensions and Clearances — All Models

• Conduit can be run through floor or ceiling chase.

• Syrup supply can be located on stand or adjacent to refrigeration unit.

Model W D H

2803 &
SC180

11M &

SC340

44M &

SC1000

50M &

SC2000

27-3/4"

(70.5 cm)

35-1/2" (90.2

cm)

39-3/4"

(101 cm)

42-1/4"

(107.3 cm)

16-1/4"

(41.3 cm)

18-1/2" (47

cm)

24-3/4"

(62.9 cm)

28-1/4"

(71.8 cm)

18-3/4"

47.6 cm)

21-3/4"

(55.2 cm)

28-1/4"

(72.4 cm)

32-1/4"

(81.9 cm)

I

(with stand)

— ————19-3/4"

54"

(137.2 cm)

60-3/4"

(154.3 cm)

66-3/4"

(169.5 cm)

JKLMNP

11"

(28 cm)

11"

(28 cm)

11"

(28 cm)

12"

19"

19"

(48.2 cm)

———5"

3-1/2"

(8.9 cm)

4"

(10.2 cm)

30.5 cm)4"(10.2 cm)6"(15.2 cm)

(48.2 cm)

(50.2 cm)

(12.7 cm)

8-1/2"

(21.6 cm)

5-1/2"

(14.0 cm)

9"

(22.9 cm)

12"

(30.5 cm)

14"

(35.6 cm)

Part Number 000003912 2/10 2-1

Installation Section 2

OPTIONAL

38.00" (96.52 cm)

34.00" (86.36 cm)

30.00" (76.20 cm)

29.50"

(74.93 cm)

29.16"

(74.06 cm)

6.00"

(15.24 cm)

3.50"

(8.89 cm)

4.00"

(10.16 cm)

14.62"

(37.13 cm)

6.50"

(16.51 cm)

OPTIONAL

20.00" (50.80 cm)

16.00" (40.64 cm)

12.00" (30.48 cm)

1.50"

(3.81 cm)

27.94"

(70.97 cm)

.75"

(1.9 cm)

1.75"

(4.4 cm)

5"

(12.7 cm)

7.39"

(18.8 cm)

3" (7.6 cm)

3.29" (8.4 cm)

11.86" (30.1 cm)

9.68" (24.6 cm)

17.3"

(43.9 cm)

10.75"

(27.3 cm)

4.88"

(12.4 cm)

REMOTE CONDENSER

BLADE TOWER

2-2

Part Number 000003912 2/10

Section 2 Installation

!

Warning

Safe Installation Dos and Don’ts

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 CO
Secure cylinders properly against abrasion.

cylinders and gauges with care.

2

• DO NOT exhaust CO

gas (example: syrup pump)

2

into an enclosed area, including all types of walk-in
coolers, cellars, and closets.

• DO NOT throw or drop a CO

cylinder. Secure the

2

cylinder(s) in an upright position with a chain.

• DO NOT connect the CO

cylinder(s) directly to the

2

product container. Doing so will result in an explosion
causing possible death or injury. It is best to connect
the CO

• DO NOT store CO

cylinder(s) to a regulator(s).

2

cylinders in temperature above

2

125°F (51.7°C) near furnaces, radiator or sources of
heat.

• DO NOT release CO

gas from old cylinder.

2

• 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.

• DO store CO

cylinder(s) in well ventilated areas.

2

Part Number 000003912 2/10 2-3

Installation Section 2

Location Requirements

SODA REFRIGERATION UNIT “QUICK-PICK” SELECTION CHART

Number of Dispensing Stations

Business Level* 1 2 3 4

Up to 6 gal / 3 L

of syrup/day or

280 drinks/day

(2,000 gal/yr)

Up to 12 gal / 45 L

of syrup/day or

560 drinks/day

(4,000 gal/year)

Up to 21 gal / 79 L

of syrup/day or

980 drinks/day

(7,500 gal/yr)

Up to 32 gal / 121 L

of syrup/day or

1400 drinks/day

(11,500 gal/yr)

Up to 42 gal / 159 L

of syrup/day or

2000 drinks/day

(15,000 gal/yr)

* Care must be taken when selecting the proper refrigeration unit. Above selections are for 75°F (24°C) conditions, 16 ounce (470 ml) drinks, and average business

cycles. Other factors such as lunch or dinner peak periods, large drinks, or high ambient conditions may require the next larger size unit. Contact your Manitowoc
Company Authorized Distributor or Manitowoc Beverage Systems (MBS) for more information.

Model 2803

40 ft / 12 m

Maximum

Conduit Length

Model 11M

100 ft / 30 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

Model 11M

100 ft / 30 m

Maximum

Conduit Length

Model 11M

100 ft / 30 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 44M

250 ft / 80 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

Model 50M

350 ft / 107 m

Maximum

Conduit Length

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

Model 2803 &
SC180

Model 11M &
SC340

Model 44M &
SC1000

Model 50M &
SC2000

Evaporator Rating

at 20°F (-6.5°C)

2,500 BTUH

490 kcal/hr

5,150 BTUH

1,159 kcal/hr

9,700 BTUH

2,340 kcal/hr

14,900 BTUH

3,310 kcal/hr

Heat Rejection (Max.)

4,500 BTUH

885 kcal/hr

8,638 BTUH

1,949 kcal/hr

13,576 BTUH

3,685 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:

• 100 GPH (379 LTR/hr) potable water supply Models
2803/11/38; 200 GPH (757 LTR/hr) potable water
supply Models 44/50

• Beverage quality CO

gas (bulk or bottled supply)

2

with a minimum 3/8" (.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.

2-4

Part Number 000003912 2/10

Section 2 Installation

!

Warning

Important

Important

Installer Instructions

Carbon Dioxide (CO2) displaces oxygen. Exposure
to a high concentration of CO
which are followed rapidly by loss of consciousness
and suffocation. If a CO
particularly in a small area, immediately ventilate the
area before repairing the leak. CO
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 CO
may build up in an area, venting of the BIB pumps
and/or CO

monitors must be utilized.

2

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. A 120 VAC, 3-wire, 1 Phase, 60 Hz Electrical Power
Supply (minimum 30 Amp capacity).

- Model 44 is 208/230, 3-wire, 1 Ph 60 Hz

- Model 50 is 208/230, 4-wire, 3Ph 60 Hz

- International Models are 50 Hz

3. Usable potable water.

4. CO

Gas (bulk or bottled supply); minimum 3/8" line.

2

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 105°F (40.5°C)
maximum operating ambient conditions.

gas causes tremors,

2

gas leak is suspected,

2

lines and pumps

2

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.

2

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.

• For indoor installation only.

• Syrup supply can be located on stand or adjacent to
refrigeration unit.

Part Number 000003912 2/10 2-5

Installation Section 2

!

Warning

Electrical

GENERAL

ELECTRICAL REQUIREMENTS

Refer to Ice Machine Model/Serial Plate for
voltage/amperage specifications.

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.

SPECIFICATIONS

Model Volt/Cycle/Phase Minimum Circuit Amps Breaker Compressor

2803 & SC180 120/60/1

230/50/1

11M & SC340 120/60/1

230/50/1

44M &
SC1000

208-230/60/1

230/50/1

20.3

9.0

21.5

10.7

20.6

20.6

25A
16A

30A
16A

30A
25A

1/3 hp

.46 kW

1/2 hp

.97 kW

1 hp

1.9 kW

50M 120* /208-230/60/3

230/400/50/3

SC2000 208-230/60/3

230/400/50/3

25.2

11.6

25.2

11.6

30A
20A

20A
15A

* Only the model 50M with SS part numbers have 120V components, the TS does not.

2.2 hp

2.0 kW

2.2 hp

2.0 kW

2-6

Part Number 000003912 2/10

Section 2 Installation

!

Warning

!

Warning

!

Warning

GROUNDING INSTRUCTIONS

When using electric appliances, basic precautions

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.

NOTE: The 208/230V units are not equipped with a cord.

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.

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.

Part Number 000003912 2/10 2-7

Installation Section 2

Screw

Drain Hose

Bottom

of Unit

Bracket

Plumbing/Water Supply

PLUMBING POTABLE WATER

Required

Model

2803 &
SC180

11M &

SC340

44M &

SC1000

50M 40 – 70 psig

SC2000 40 – 70 psig

Water

Pressure

40 – 70 psig

(2.8 – 4.9 bar)

40 – 70 psig

(2.8 – 4.9 bar)

40 – 70 psig

(2.8 – 4.9 bar)

(2.8 – 4.9 bar)

(2.8 – 4.9 bar)

A 1" (2.54 cm) ID copper inlet water line equipped with a
3/4" (1.905 cm) 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 in this unit is provided with a dual
check valve type back-flow preventer, which conforms to
ASSE 1032. The Model 50M & 44M vented backflow
preventer 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) and
be no less than 40 psi (2.8 bar) dynamic. If supply
water pressure is greater than 70 psi (5 bar), 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.

Drain

Connections

3/4" ID

within 6 ft (2 m)

3/4" ID

within 6 ft (2 m)

3/4" ID

within 6 ft (2 m)

3/4" ID

within 6 ft (2 m)

3/4" ID

within 6 ft (2 m)

Water

Supply

3/8" ID

EVA Line

3/8" ID

EVA Line

1/2" ID

EVA Line

1/2" ID

EVA Line

1/2" ID

EVA Line

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 Connection

4. When a water cooled condenser is installed, a
copper supply line (not supplied with unit) must be
plumbed to the 3/8" (.965 cm) 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. Use the built in fill valve that is already plumbed into
the unit.

2. An appropriate floor drain is required within 6 ft (2 m)
of the unit.

3. 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.

2-8

Part Number 000003912 2/10