Multiplex MII 175 Service Manual
MII SERIES
150/200/250/302 & 402 Ice Dispensers
INSTALLATION & SERVICE GUIDE
Part Number 5028935
Manitowoc Beverage Equipment
2100 Future Drive w Sellersburg, IN 47172-1868
Tel: 812.246.7000, 800.367.4233 Fax: 812.246.9922
www.manitowocbeverage.com
In accordance with our policy of continuous product development and
improvement, this information is subject to change at any time without notice.
October 19, 2006 REV3
FOREWORD
Manitowoc Beverage Equipment (MBE) developed this manual as a reference guide for the owner/
operator , service agent, and installer of this equipment. Please read this manual before installation
or operation of the machine. A qualified service technician should perform installation and startup of this equipment, consult the Troubleshooting Guide within this manual for service assistance.
If you cannot correct the service problem, call your 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 _____________________________________________________________________
UNPACKING AND INSPECTION
Note: The unit was thoroughly inspected before leaving the factory. Any damage or irregularities should
be noted at the time of delivery.
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 Manitowoc Beverage Equipment 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 Manitowoc Beverage Equipment without a written Return Merchandise
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.
TABLE OF CONTENTS
FOREWORD ..............................................................................................................................3
UNP ACKING AND INSPECTION ..............................................................................................3
WARRANTY INFORMATION.....................................................................................................3
SAFETY .....................................................................................................................................6
IMPORT ANT SAFETY INSTRUCTIONS ........................................................................................................... 6
CARBON DIOXIDE WARNING ......................................................................................................................... 6
QUALIFIED SERVICE PERSONNEL ................................................................................................................ 6
SHIPPING, STORAGE, AND RELOCATION ..................................................................................................... 6
ADDITIONAL WARNINGS ................................................................................................................................6
GROUNDING IN STRUCTIONS ........................................................................................................................ 7
INSTALLATION..........................................................................................................................8
PRE-INSTALLATION CHECK LIST .................................................................................................................. 8
INSTALLATION CHECK LIST ........................................................................................................................... 8
DRAINAGE OPTIONS ...................................................................................................................................... 8
TOP MOUNTED ICEMAKER REQUIREMENTS ............................................................................................... 9
ICE FLOW RESTRICTOR ................................................................................................................................. 9
ROCKING CHUTE ICE DELIVERY SWITCH ADJUSTMENT .......................................................................... 10
BAFFLE FOR MANITOWOC™ CUBERS ....................................................................................................... 11
BAFFLE FOR "Q" SERIES ICE MACHINES................................................................................................... 11
MANUAL FILL LID FOR DISPENSERS WITH A CUBER................................................................................ 11
GENERAL INSTRUCTIONS FOR REMOVAL OF GEAR MOTOR .................................................................. 12
OPERATION ............................................................................................................................13
UNIT INSPECTION ......................................................................................................................................... 13
ICE RECOMENDED FOR DISPENSING ......................................................................................................... 13
ICE STORAGE AND DISPENSING................................................................................................................. 13
BEVERAGE VALVES ..................................................................................................................................... 13
LEGS .............................................................................................................................................................. 13
115V/220V NON ADJUST ABLE AGITATION TIMER....................................................................................... 13
MII MEASUREMENTS & SPECIFICATIONS ................................................................................................... 14
MII-302 MEASUREMENTS & SPECIFICATIONS ............................................................................................ 15
MII-402 MEASUREMENTS & SPECIFICATIONS ............................................................................................ 16
MII-250 FOOTPRINT....................................................................................................................................... 18
MII-302 FOOTPRINT....................................................................................................................................... 19
TABLE OF CONTENTS
USER MAINTENANCE............................................................................................................20
SANITIZING AND CLEANING ........................................................................................................................ 20
DAILY CLEANING .......................................................................................................................................... 20
CLEANING AND SANITIZING THE DISPENSER ........................................................................................... 20
RE-ASSEMBLING THE DISPENSER P ARTS................................................................................................. 20
PREVENTATIVE MAINTENANCE................................................................................................................... 21
HOW TO DISASSEMBLE FOR CLEANING OR MAINTENANCE................................................................... 21
DAILY CLEANING .......................................................................................................................................... 24
MONTHLY CLEANING.................................................................................................................................... 25
EXPLODED VIEWS, PARTS & DIAGRAMS...........................................................................26
MII-150, 175, 200, & 250 ................................................................................................................................. 26
MII-150 P ARTS LIST....................................................................................................................................... 27
MII-175 P ARTS LIST....................................................................................................................................... 27
MII-200/250 P ARTS LIST ................................................................................................................................28
MII - 302 .......................................................................................................................................................... 29
MII-302 P ARTS LIST....................................................................................................................................... 30
MII-150/175/200/250 115V WIRING................................................................................................................. 31
MII-302 115V WIRING ..................................................................................................................................... 32
TROUBLESHOOTING.............................................................................................................34
INDEX ......................................................................................................................................39
Installation and Service Manual
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
Carefully read all safety messages in this manual. Learn how to operate the MII unit properly . Do not
allow anyone to operate the unit without proper training and keep it in proper working condition.
Unauthorized modifications to the MII may impair function and/or safety and affect the life of the unit.
CARBON DIOXIDE WARNING
DANGER: Carbon Dioxide (CO2) displaces oxygen. Exposure to a high concentration of CO2 gas
causes tremors, which are followed rapidly by loss of consciousness and suffocation. If a CO2 gas leak
is suspected, particularly in a small area, immediately ventilate the area before repairing the leak. CO
lines and pumps should 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 CO2 may build up in an area, venting of the B-I-B pumps and / or CO2 monitors should be utilized.
QUALIFIED SERVICE PERSONNEL
WARNING: Only trained and certified electrical and plumbing technicians should service this unit.
All wiring and plumbing must conform to national and local codes.
2
SHIPPING, STORAGE, AND RELOCATION
CAUTION: Before shipping, storing, or relocating this unit, syrup systems must be sanitized. After
sanitizing, all liquids (sanitizing solution and water) must be purged from the unit. A freezing environment causes residual sanitizing solution or water remaining inside the unit to freeze, resulting
in damage to internal components.
ADDITIONAL WARNINGS
Installation and start-up of this equipment should be done by a qualified service technician. Operation,
maintenance, and cleaning information in this manual are provided for the user/operator of the equipment.
Save these instructions.
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Installation and Service Manual
SAFETY
GROUNDING IN STRUCTIONS
WARNING: Risk of electrical shock. Connect to a properly grounded outlet only.
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.
DANGER – 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 rep air 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.
WARNING – When using electric appliances, basic precautions should always be followed, including the following:
a)Read all the instructions before using the appliance.
b)To reduce he 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. Return appliance to 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.
SAVE THESE INSTRUCTIONS
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Installation and Service Manual
INSTALLATION
PRE-INSTALLATION CHECK LIST
1 Do you have enough space to install the dispenser
or a dispenser and top mounted cuber?
2 Does the top mounted cuber (if utilized) have a mini-
mum of 6 inches (15.3) cm) clearance on all sides?
INSTALLATION CHECK LIST
1 Place the dispenser in the desired location.
2 Install drain plumbing and insulate.
3 Fill bin with ice.
DRAINAGE OPTIONS
The drains for MII Series connects to the drain pan.
Drainage Option One
Drainage through the bottom of the unit.
3 Is the countertop level?
4 Can the countertop support the weight of the dis-
penser, or the dispenser/cuber combination plus the
weight of the stored ice?
4 Connect power supply.
5 Meet all code requirements.
6 Dispense a few cups of ice to check for proper operation
Drainage Option Number Two
Drainage through the back of the unit.
Radiator clamp
MII 302 AND 402 WILL HAVE
TWO DRAINS
8
90oelbow fitting
Radiator clamp
Flexible tubing
Straight fitting
Holes for beverage lines
Hole for drain
pan drain
Radiator clamp
Flexible tubing
INSTALLATION
TOP MOUNTED ICEMAKER REQUIREMENTS
Installation and Service Manual
1 Location - Avoid placing the dispenser and/or ice
machine near heat sources such as radiators, ovens, refrigeration equipment and direct sunlight.
2 Clearances - Six inch (15.2 cm) clearance on all
sides of the icemaker is needed.
3 Front of icemaker to be flush with front of dis-
penser- The front of the icemaker should be flush
with the front of the dispenser, as shown in the drawing above. Because the icemaker is flush with the
1
6"
(15.2 cm)
2
cuber
6" (15.2 cm)
clearance
for cuber
6"
(15.2 cm)
front of the dispenser, some icemakers may overhang at the back of the dispenser.
4 Drains - A separate drain line is required for the ice
machine, in addition to a drain line for the ice/beverage dispenser.
5 MII Series dispensers require an adapter kit to
install some top-mounted icemakers. Contact your
local Multiplex distributor for the correct adapter kit.
6" (15.2 cm)
6" (15.2 cm)
5
3
3
4
4
NOTE: For full information about icemaker installation, including plumbing lines connections and electri-
cal requirements, see the icemaker installation manual.
ICE FLOW RESTRICTOR
For all MII, MD and MDH Series dispensers an Ice flow
restrictor is available. This ice flow restrictor decreases
the amount of ice allowed to enter the ice chute by blocking a small area at the entrance of the dispenser chute.
This in turn restricts the flow of ice that is dispensed in to
your cup.
Please refer to the instructions included in kit #5013822
Ice Flow Restrictor
for more information on how to install
.
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Installation and Service Manual
ROCKING CHUTE ICE DELIVERY SWITCH ADJUSTMENT
INSTALLATION
1 T o properly adjust the switch, first unplug the power
cord to the unit then remove the merchandiser. This
will give you access to the ice delivery switch located on the left side of the rocking chute.
2 Begin by observing the chute by slowly pushing
against the rocking chute. When the ice delivery
switch clicks, measure the distance from the door
stops on the rocking chute bracket to the door. The
distance between the two should be no more than
1/4", but no less than 1/16".
3 The left side of the rocking chute has a tab that
pushes up on the ice delivery switch. To adjust it,
use needle nose pliers and bend the arm of the
switch up or down in order to change the point where
the tab makes contact with the switch arm.
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Installation and Service Manual
INSTALLATION
BAFFLE FOR MANITOWOC™ CUBERS
When installing a Manitowoc™ “S” series Ice Machine on a MII dispenser, a baf fle kit is required for proper inst allation. The baffle kit is designed to prevent ice from lying against the front of the ice machine, and melting down the
front of the dispenser. There are two different baffle kits available, one kit is for the 30" wide “S” series ice machine,
and the other kit is for the 22" wide “S” series ice machine.
These two Kits are available through your local Manitowoc Distributor . List prices may be subject to change without
notification. Please call your local parts distributor for current pricing before ordering.
Ice Maker Baffle Installation:
1. Remove both front panels.
2. Examine the ice machine to see if the machine has
four screws on the lower front plastic panels.
3. If there are screws, remove them from the countersunk holes on the front surface of the machine, save
the screws.
4. Install the deflector, using the four screws removed
in step three.
5. Four screws and two backing plates are in the kit.
6. If there are no screws on the ice machine (step 2),
pierce the thin plastic countersunk holes, install the
backing plates and install the deflector using the
screws from the kit.
7. Replace the front panels.
BAFFLE FOR "Q" SERIES ICE MACHINES
1. Position baffle on top of water well with tab on the
front and the other tab inside the water well.
2. Mount the baffle on the left side of the ice maker
using the hole and screw provided.
Part Number Description
5029518 ........................ Baffle Kit 30”
5029517 ........................ Baffle Kit 22”
MANUAL FILL LID FOR DISPENSERS WITH A CUBER
If you are top mounting your MII Series dispenser with a
cuber, you will require a lid for the manual fill area at the
top, front of the dispenser.
If you ordered a dispenser and a cuber at the same time,
the manual fill lid was included with the unit. The manual
fill lid can be ordered from your local Multiplex distributor.
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Installation and Service Manual
INSTALLATION
GENERAL INSTRUCTIONS FOR REMOVAL OF GEAR MOTOR
These instructions are provided as a guide for the removal of the gear motor. Depending on the model
number of your dispenser, these instructions may vary slightly.
1. Disconnect power from the electric receptacle.
2. Remove all ice from the ice storage bin of the dispenser.
3. Remove the paddle wheel pin from the paddle wheel /
agitator assembly inside the dispenser bin.
4. Remove the agitator assembly from the dispenser bin
by pushing the agitator to the back of the bin. Angle
the front of the agitator to the side. Pull the agitator
forward then out of the dispenser.
5. Remove the paddle wheel from the dispenser by pull-
ing the hub of the paddle wheel to the back of the bin
and off the gear motor shaft.
Removable front
merchandiser panel
6. Remove the splash panel from the dispenser and expose the gear motor.
7. Disconnect the electric connector from the gear motor
wire leads.
8. Remove the pin in front of the gear motor.
9. Y ou should be able to remove the gear motor from the
dispenser.
10. T o install a replacement gear motor , reverse this procedure.
Agitator
Ice bin
Beverage valve
(option)
Water line
12
Gear motor
Drain pan
Ice
Paddle wheel
Rocking chute
ice dispense chute
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