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America’s Quality Choice in Refrigeration
Part Number 000003913 7/08
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 equip ment. 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 th e pr oce dur e yo u
are performing.
We reserve the right to make product improvements at any time.
Specifications and design are subject to change without notice.
General Information 1
Installation 1
Table of Contents (continued)
Read This Manual 1
Unit Inspection 1
Model Numbers 1
How to Read a Model Number 1
Accessories 1
Special Applications 1
Typical System 1
How the Multiplex Works 2
Start-up 2
iiPart Number 000003913 7/08
Maintenance 1
Table of Contents (continued)
Placing Equipment in Operation 2
Equipment Setup and Close Procedure 3
Equipment Setup Procedure 3
Equipment Close Procedure 3
System Calculators 4
Beer Pump, System Pressure and Choker Calculator 4
Blended Gas Beer System Pressure and Choker Calculator 5
Pure CO
Major Components 1
Dispensing Stations 1
Beverage Conduits 1
Air Compressor 1
Refrigeration Unit 1
Gas Blender 1
CO
Scheduled Frequency 1
Shipping, Storage and Relocation 2
Beer System Pressure and Choker Calculator 6
2
Gas Supply 1
2
Before Calling for Service 1
Checklist 1
Part Number 000003913 7/08
iii
Table of Contents (continued)
ivPart Number 000003913 7/08
Section 1
!
Warning
!
Warning
04 - R404a refrigerant
Model Prefix
Model Base
300 A 04
A - Air-cooled
AX - Air-cooled, international
R - Remote
RX - Remote, international
W - Water-cooled
WX - Water-cooled, international
Condenser
Type
300 - 1 hp
450 - 2.2 hp
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
Thoroughly inspect the unit upon delivery. Immediately
report any damage that occurred during tr ansportation 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.
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 beginn ing with the
letters TS are NOT marine listed.
OUTDOOR APPLICATIONS
TS Multiplex Beverage Recirculating units a re 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 000003913 7/081-1
General InformationSection 1
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.
1-2
Part Number 000003913 7/08
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 450)
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 Plug
W
Ceiling
Wall
18" (45.7 cm)
minimum
I
H
CO2 Regulator
Panel (Optional)
N
Drain Plug
Wall
Conduit to
Dispensing Towers
D
Installation
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.
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 ensur e 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
cylinders and gauges with care.
2
Secure cylinders properly against abrasion.
•DO store CO
cylinder(s) in well ventilated areas.
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.
2-2
Part Number 000003913 7/08
Section 2Installation
!
Warning
Location Requirements
MULTIPLEX CHILLER MODEL SELECTION CHART
Model #* 300450
Line length up to 300'up to 450'
Included
glycol
circulation
pump
Optional
glycol
circulation
pumps
Qty of
flavors**
* Chiller condensing options are available, refer to
Condenser and Pre-charged Lines Installation for details.
** Requires maximum number of optional pumps to reach
these levels.
up to 2 additionalone additional
1 3
up to 22up to 32
CLEARANCES
Control Side (Right)18" (45.7 cm)
Connection Side (Left)12" (30.5 cm)
Back Side6" (15.2 cm)
Ceiling18" (45.7 cm)
RATINGS
Model
75
150
300
450
Evaporator Rating
at 20°F (-6.5°C)
2500 BTUH
490 kcal/hr
5150 BTUH
1,159 kcal/hr
9,700 BTUH
2,340 kcal/hr
14,900 BTUH
3,310 kcal/hr
Heat Rejection
(Max.)
4500 BTUH885
kcal/hr
8,638 BTUH
1,949kcal/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:
•Beverage quality CO
gas (bulk or bottled supply)
2
with a minimum 3/8" (.96 cm) line
NOTE: Refer to serial plate on front 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.
Carbon Dioxide (CO2) displaces oxygen. Exposure
to a high concentration of CO
gas causes tremors,
2
which are followed rapidly by loss of consciousness
and suffocation. If a CO
gas leak is suspected,
2
particularly in a small area, immediately ventilate the
area before repairing the leak. CO
lines and pumps
2
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
2
may build up in an area, venting o f the BIB pumps
and/or CO
Prior to scheduling Multiplex Equipment installer,
the following steps listed below must be completed:
1. Electrical power supply meeting the requirements for
the unit to be installed. (See the specification in this
section or refer to the unit’s serial plate).
2. CO
3. A 120 VAC, 3-wire, 1 Phase, 60 Hz dual wall
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 REFRIGERATION UNITS
•Conduit can be run through floor or ceiling chase.
•60°F (15.6°C) minimum and 105°F (40.5°C)
•For indoor installation only.
•Beer supply can be located on stand or adjacent to
Gas (bulk or bottled supply); minimum 3/8" line.
2
receptacle for optional electrical equipment
(domestic only).
maximum operating ambient conditions.
refrigeration unit.
Installer Instructions
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
Refrigeration Unit.
This publication must be saved for future reference.
Read instructions before attempting installation.
PREPARATION
The Multiplex Beverage Equipment 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.
2-4
Part Number 000003913 7/08
Section 2Installation
!
Warning
Electrical
GENERAL
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
75
150
300
450
Volt/Cycle/
Phase
120/601
230/50/1
120/601
230/50/1
208-230/60/1
230/50/1
208-230/60/3
230/400/50/3
Minimum
Circuit
Amps
20.3
9.0
21.5
10.7
20.6
20.6
25.2
11.6
Breaker Compressor
25A
16A
30A
16A
30A
25A
30A
20A
1/3 hp
.46 kw
12 hp
.97 kw
1 hp
1.9 kW
2.2 hp
2.0 kW
Part Number 000003913 7/082-5
InstallationSection 2
!
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 inst alled and grounded
in accordance with all local codes and ordinances.
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.
2-6
i. For a grounded appliance — Connect to a
properly grounded outlet only. See Grounding
Instructions.
The following instructions will provide information for
installing Multiplex Beer Conduit with your Beermaster
System. Areas which will be covered include routing the
conduit for different bar setups, connecting the conduit
at the Beermaster Glycol Chiller, connecting the conduit
at the beer cooler, and connecting the conduit at the
dispensing stations.
FLOOR CHASES
Before pulling beer conduit through a floor chase,
ensure the floor chase contains the following:
•6" (15 cm) minimum PVC conduit chase
•Chase openings should extend 6" (15 cm) above
floor
•Wide sweep elbows (2 ft [0.6 m] radius)
•Chase must be clean and dry — no foreign materials
glycol
line**
* To maximize system performance on 6-flavor applications,
Multiplex recommends using a 10 line conduit with 4 glycol
lines/2 circuits.
** 2-line “glycol only” conduit, used between chiller and keg
cooler.
MC023346 2 1 2
Part Number 000003913 7/082-7
InstallationSection 2
Pulling Conduit Through Floor Chase
1. Determine the most convenient way of routing
conduit, starting at the end which offers adequate
room for installation. The conduit installation process
requires the assistance of at least two (2) qualified
personnel.
2. Route the steel fish tape through chase opening.
Push fish tape through entire chase until it appears
at opposite end.
3. Locate an appropriate length of rope and tie to end
of fish tape (end which was routed through chase in
step 2). Approximately 2 ft (0.6 m) from steel fish
tape/rope connection, secure a swab to rope (use
mop heads or a bundle of rags for swab).
4. Pull end of fish tape from starting point through
chase with rope and swab. The swab will clean any
construction materials, moisture, or debris that may
exist in floor chase. Continue to swab the chase until
the swab exits the chase clean and dry.
5. After floor chase has been cleaned, remove steel
fish tape and swab from rope. Locate bundle of beer
conduit and unspool conduit to allow unrestricted
feed during installation process.
6. Locate rope through floor chase opening and
connect to proper end of beer conduit.
NOTE: The beer conduit is designed to be pulled
through floor chase in the direction of arrows printed on
conduit.
7. After rope has been connected, t ape end of co nduit,
including rope, and form conduit end to a point (see
figure above). Tape will ensure that no contaminants
enter conduit tubes during installation.
8. Place pointed end of the conduit through chase
opening. While one person pushes the conduit
through chase, another person should be pulling the
conduit through the chase with rope at the opposite
end.
9. Once the conduit has been routed through the
chase, pull enough conduit through the openings to
ensure an adequate supply at each end of the chase
for connections.
2-8
Part Number 000003913 7/08
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