How it Works
Servend
Loading...
MDH-302 Series

Servend MDH-402 Series, MDH-302 Series Installation, Use & Care Manual

Download
MDH-302/402
& icepic
Ice & Beverage Dispensers
Installation, Use & Care Manual
This manual is updated as new information and models are released.
Leader in Ice & Beverage Dispensers
™ / Selectable Ice Series
Visit our website for the latest manual. www.manitowocfsg.com
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 proc eeding, 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 trouble­free operation of your Manitow oc 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.
Section 1 General Information
Read This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Model Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Section 2 Installation Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
MDH-302 & 402 Footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Pre-installation Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Grounding Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Wat er Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Table of Contents
How to Read a Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Baffle for Manitowoc
Manual Fill Lid for Dispensers with an Ice Machine . . . . . . . . . . . . . . . . . . 1-1
Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Location Requirements for Top Mounted Ice Machine Installations . . . . . . 2-3
Double Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Also Consider The Location Of The Following Items Before Installation . . 2-5
Additional Checks for Top Mounted Ice Machine Installations . . . . . . . . . . 2-5
Installing Baffle for Ice Machine Installations . . . . . . . . . . . . . . . . . . . . . . . 2-6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Minimum Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Minimum Circuit Amperage Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Pump Deck Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Recommended Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Diagram Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
MDH-302 12 Valve Plumbing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
MDH-302 12 Valve Flex Manifold (1 per side) . . . . . . . . . . . . . . . . . . . . . . 2-10
®
Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Part Number 020003999 6/14 1
Section 3 Operation
Table of Contents (continued)
MDH-402 16 Valve Plumbing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
MDH-402 16 Valve Flex Manifold (1 per side) . . . . . . . . . . . . . . . . . . . . . . . 2-11
MDH-402 20 Valve Plumbing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
MDH-402 20 Valve Flex Manifold (1 per side) . . . . . . . . . . . . . . . . . . . . . . . 2-12
CO2 System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Routing Internal Carb Tank Purge Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Step by Step Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Specifications Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
System Pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
ADA Key Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Starting Your Beverage System & Dispenser . . . . . . . . . . . . . . . . . . . . . . . 2-16
General System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
MDH-302 Cold Carbonation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
MDH-402 Cold Carbonation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Ice Recommended for Dispensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Non-adjustable Agitation Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Ice Storage and Dispensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Carbonation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Syrup Delivery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
B-I-B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Figal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Operation Checks & Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Ice Delivery Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Crushed or Cubed Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Agitation Timer Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Section 4 Maintenance
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Daily Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Monthly Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Cleaning Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2 Part Number 020003999 6/14
Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Sanitizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Shipping, Storage and Relocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
MDH Series Graphic Medallion Removal & Installation . . . . . . . . . . . . . . . . . . 4-12
Section 5 Before Calling for Service
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
icepic™ Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Pump Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Selectable Ice Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Drink Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Liquid Level Control Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Table of Contents (continued)
Disassembly for Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Disassemble the Rocking Chute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Disassemble the Ice Crusher Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Monthly Ice Crusher Assembly Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Reassemble the Ice Crusher Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Gear Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Beverage System Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Bag-In-Box System Sanitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Figal Beverage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Medallion Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Part Number 020003999 6/14
3
Table of Contents (continued)
4 Part Number 020003999 6/14
Section 1
! Warning
S = Ice Only SV = Ice/Beverage NGF = Ice/Beverage FRP = Ice/Beverage & Integrated Flavor Shots
i = Intellicarb CI = Ice Crusher (icepic™) SCI = Selectable Crushed Ice
Ice Capacity
Model Prefix
Model Suffix
Model Base
MDH–302–i
General Information
Read This Manual
Manitowoc Beverage Equipment (MBE) developed this manual as a reference guide for the owner/oper ator a nd installer of this equipment. Please read this manual before installation or operation of the machine. A qualified service technician must perform inst allation and start-up of this equipment. Consult Section 5 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 ______________________________
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.
Model Numbers
This manual covers the following models:
Beverage/Ice Dispensers
MDH-302, MDH-402, MDH-302 CI,
MDH-402 CI, MDH-402 SCI
HOW TO READ A MODEL NUMBER
Accessories
BAFFLE FOR MANITOWOC® ICE MACHINE
When installing a Manitowoc Ice Machine on a dispenser, a baffle kit is required for proper installation. 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 for “S” series ice machines, one kit is for the 30" wide machine, and the other kit is for the 22" wide machine. There is also a kit for “Q” series ice machines.
Kits are available through your local distributor. List prices may be subject to change without notification. Please call your local parts distributor for current pricing before ordering.
MANUAL FILL LID FOR DISPENSERS WITH AN ICE MACHINE
Part Number 020003999 6/14 1-1
If you are top mounting your dispenser with an ice machine, you will require a lid for the manual fill area at the top, front of the dispenser.
If you ordered a dispenser and an ice machine at the same time, the manual fill lid was included with the unit. The manual fill lid can be ordered from your local distributor.
General Information Section 1
Label
LEGS
Legs are optional equipment with most MBE dispen sers. Sta ndard legs a re 4" ( 10.2 cm) t a ll st ainless stee l legs. If an ice machine is installed on top of the dispenser, legs must not be installed. We do not recommen d using legs when an ice machine is mounted on the dispenser. The combined weight of the dispenser , ice and ice machine is more evenly distributed when the base area of the dispenser is in contact with the countertop.
Serial Number Location
This number is required when requesting information from your local distributor. The serial number is listed on the SERIAL NUMBER DECAL affixed to the dispenser.
Warranty Information
Consult your local MBS 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 MBS 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 MBS without a written Return Materials Authorization (RMA). Equipment returned without an RMA will be refused at MBS’s dock and returned to the sender at the sender’s expense.
Please contact your local MBS distributor for return procedures.
Serial Number Location
1-2
Part Number 020003999 6/14
Section 2
Important
Coldplate Inlets
3/4" NPT
Fitting
Drain Pan
Front edge of drain pan
Coldplate Inlets
3/4" NPT
Fitting
Installation Instructions
General
These instructions are provided to assist the qualified installer. Contact your Manitowoc Beverage Equipment Service Agent or call Manitowoc Beverage Equipment for information regarding start-up service s.
Dimensions
Failure to follow these installation guidelines may affect warranty coverage.
MODELABCDE
MDH-302* 42.75"
(108.59 cm)
MDH-402* 60.00"
(152.40 cm)
* Applies to icepic™ models also (MDH-302 CI & MDH-402 CI)
Part Number 020003999 6/14 2-1
30.50"
(77.47 cm)
30.50"
(77.47 cm)
22.50"
(57.15 cm)
22.50"
(57.15 cm)
38.75"
(98.43 cm)
56.50"
(143.51 cm)
20.50"
(52.07 cm)
21.25"
(53.98 cm)
Installation Instructions Section 2
Minimum Area
for Cutout
Maximum Area
for Cutout
D
C
B
A
!
Caution
MDH-302 & 402 Footprint
Model
MDH-302* 38.75"
MDH-402* 56.50"
ABCD
(98.43 cm)
(143.51 cm)
Maximum Minimum
Cutting the countertop may decrease its strength. Counter must be braced to support the dispenser countertop weight plus ice storage capacity and weight of ice machine, if applicable.
* Applies to icepic™ models also (MDH-302 CI & MDH-402 CI)
(52.07 cm)
(54.36 cm)
20.50"
21.40"
3.00"
(7.62 cm)
3.00"
(7.62 cm)
32.00"
(81.28 cm)
48.00"
(121.92 cm)
2-2
Part Number 020003999 6/14
Section 2 Installation Instructions
!
Warning
Location
The location selected for the beverage dispenser must meet the following criteria. If any of these criteria are not met, select another location.
• The air temperature must be at least 50°F (10°C), but must not exceed 95°F (35°C).
• The location must not be near heat-generating equipment or in direct sunlight and must be protected from weather.
• The countertop must be level. Verify that the countertop can support the weight of the dispe ns er, or the dispenser/ice machine combination plus the weight of the stored ice.
• Water lines, drains and power outlet must be within 6' (1.8 m) of location.
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
2
pumps must not be installed in an enclosed space. An enclosed space can be a cooler or small room o r closet. This may include convenience stores with glass door self serve coolers. If you suspect CO
2
may build up in an area, venting of the B-I-B pumps and / or CO
monitors must be utilized.
2
LOCATION REQUIREMENTS FOR TOP MOUNTED ICE MACHINE INSTALLATIONS
Location — Avoid placing the dispenser and/or ice
machine near heat sources such as radiators, ovens, refrigeration equipment and direct sunlight.
Clearances — Refer to the ice machine installation manual for clearances.
Front of ice machine to be flush with front of dispenser — Some ice machines may overhang at the
back of the dispenser. Drains — A separate drain line is required for the ice
machine, in addition to a drain line for the ice/beverage dispenser.
Dispensers may require an adapter kit to install some top-mounted ice machines. Contact your local distributor for the correct adapter kit.
For full information about ice machine installation, including clearances, plumbing lines, connections, and electrical requirements, see the ice machine installation manual.
Part Number 020003999 6/14 2-3
Installation Instructions Section 2
Pre-installation Checklist
When installing any system, first make sure the major components are available. Generally the major components necessary for an installation are:
Pre-mix System:
Post Mix System:
regulator set
CO
2
Product connectors for Figal tank
Gas connectors for Figal tank
Beverage dispenser
Beverage tubing
tank
CO
2
Figal beverage tanks
Stepless (Oetiker) clamps
CO2 regulator set
Beverage dispenser
Beverage tubing
tank
CO
2
Carbonator
Stepless (Oetiker) clamps
Chain for CO
Figal System also:
tank
2
Chain for CO
B-I-B System also:
B-I-B connectors
B-I-B regulator set
B-I-B rack
B-I-B syrup boxes
2-4
tank
2
Syrup connectors for Figal tank
Gas connectors for Figal tank
Figal syrup tanks
Bulk Syrup System also:
Syrup connectors for Bulk tank
Gas connectors for Bulk tank
Bulk syrup tanks
Part Number 020003999 6/14
Section 2 Installation Instructions
6" (15.2 cm) clearance for ice machine
ice machine
6"
(15.2 cm)
6"
(15.2 cm)
6" (15.2 cm)
6" (15.2 cm)
DOUBLE CHECK
Do you have enough space to install the dispenser or a dispenser and top mounted ice machine?
Does top mounted ice machine (if utilized) have a minimum of 6" (15.2 cm) clearance on all sides?
Is the countertop level?
Can the countertop support the weight of the dispenser, or the dispenser/ice machine combination plus the weight of the stored ice?
ALSO CONSIDER THE LOCATION OF THE FOLLOWING ITEMS BEFORE INSTALLATION
Water line
Drain
ADDITIONAL CHECKS FOR TOP MOUNTED ICE MACHINE INSTALLATIONS
Location — Avoid placing the dispenser and/o r
ice machine near heat sources such as radiators, ovens, refrigeration equipment and direct sunlight.
Clearances — 6" (15.2 cm) clearance on all sides of the ice machine is needed.
Front of ice machine to be flush with front of dispenser — The front of the ice machine must
be flush with the front of the dispenser. When the ice machine is flush with the front of the dispenser , some ice machines may overhang at the back of the dispenser.
Drains — A separate drain line is required for the ice machine, in addition to a drain line for the ice/beverage dispenser.
Dispensers may require an adapter kit to install some top-mounted ice machines. Contact your local distributor for the correct adapter kit.
Power outlet
Heating and air conditioning ducts
For full information about ice machine installation, including plumbing line connections and electrical requirements, see the ice machine installation manual.
Part Number 020003999 6/14 2-5
Installation Instructions Section 2
Backing Plate to Be Inserted
into Side Pocket of Bulkhead
Screws
Screws
New Ice Baffle
Backing Plate
to Be Inserted
into Side Pocket of Bulkhead
Baffle, Manitowoc Ice Machine
Part #5007892
0.69"
(1.7 cm)
Ref.
6.32"
(16.0 cm)
Ref.
7.22"
(18.3 cm)
Ref.
Assembly
INSTALLING BAFFLE FOR ICE MACHINE INSTALLATIONS
“S” Series Baffle
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 the m 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.
“Q” Series Baffle
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 machine using the hole and screw provided.
“Q” Series Ice Machine
“S” Series Ice Machine
2-6
Part Number 020003999 6/14
Section 2 Installation Instructions
! Warning
Important
!
Warning
! 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.
VOLTAGE
The standard voltage for MDH Series dispensers is 120VAC - 60Hz. A power cord is provided with 120VAC -
60Hz models only. MDH Series dispensers use a 1/7 hp
gearmotor.
MINIMUM CIRCUIT AMPERAGE CHART
Due to continuous improvements, this informatio n is for reference only. Please refer to the dispenser serial number tag to verify electrical data. Serial tag information overrides information listed on this page.
Grounding Instructions
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.
Improper connection of the equipment­grounding 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 ar e 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.
MDH-302/402
Dispensers
With Standard or 24"
Extended Merchandiser
(Non-crusher)
34" Extended Merchandiser (Non-crusher)
With Standard or 24"
Extended Merchandiser
(with Crusher)
34" Extended Merchandiser (with Crusher)
Voltage/Cycle
120/60 4.5 *
120/60 5.0 *
120/60 5.25 *
120/60 5.75 *
* Does not include carbonator motor.
Part Number 020003999 6/14 2-7
Minimum
Circuit Amps
Installation Instructions Section 2
!
Warning
PUMP DECK WIRING
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 the risk of injury, close
supervision is necessary when an appliance is used near children.
c. Do not contact moving parts.
The supply cord is equipped with a three prong 5-15P. When a Ground Fault Circuit Interrupter (GFCI) is required by code, a breaker type protector must be used. We do not recommend GFIC outlets as they are known for more intermittent nuisance trips than panel breakers. To ensure both the safety and proper operation of this equipment, be certain th at the electrical receptacle is a proper design so as to accept this plug, ensuring that the carbonator assembly is properly grounded.
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.
If the pump deck is to be installed in an area or community whose local codes require permanent wiring, the following procedure must be followed.
1. The three wires (white, black and green) must be fed through the cable connector and brought into the wiring compartment. The cable must be secured into the connector.
2. The green wire from the cable must be connected to the green screw that attaches to the inside panel of the wiring compartment. Be sure to use a ring torque terminal for connecting the wire to the screw.
3. The white wire from the cable must be joined to the N terminal of the liquid level control board by a suitable U.L. listed insulated cable connector.
4. The black wire from the cable must be joined to the L1 terminal of the liquid level control board by a suitable U.L. listed insulated cable connector.
i. For a grounded appliance — Connect to a
properly grounded outlet only. See Grounding Instructions.
2-8
Part Number 020003999 6/14
Section 2 Installation Instructions
Splash Panel
Plumbing Diagram
Plumbing Diagram
Water Supply
RECOMMENDED PLUMBING
The plumbing diagram is printed on a white vinyl label, normally located above the inlet tubes for syrup and water. The plumbing diagram label can be accessed by removing the splash panel of the dispenser. The plumbing diagram label explains which inlet coldplate fittings supply which dispenser valves and water manifolds.
The water supply must first be connected to the carbonator pump (not shown) before plumbing to connection “A” shown on plumbing diagram. The carbonator pump deck must be within 6' (1.8 m) of the dispenser for optimum performance. See B-I-B installation diagram for system pressure settings.
A check valve must be installed in the water supply line 3' (0.9 m) from the noncarbonated water connection “PW”. Contact factory if not installed.
DIAGRAM LOCATION
PLUMBING DIAGRAM
PLUMBING DIAGRAM
Part Number 020003999 6/14 2-9
Installation Instructions Section 2
MDH-302 LEFT-HAND SIDE
SERVEND RECOMMENDED PLUMBING
2-1-1-2 FLEX LEFT TO RIGHT
POST-CHILL
FLEX-MANIFOLD
PRE-CHILL
INLET LINES
* EXTERNALLY CARBONATED UNITS: CARBONATOR IS REPLACED BY A BY-PASS TUBE
NOTE: SYRUP LINES NOT SHOWN
NOTE: INTERNALLY CARBONATED UNITS - FROM CARBONATOR PUMP TO CARBONATOR LOCATED ON UNIT EXTERNALLY CARBONATED UNITS - FROM EXTERNAL CARBONATOR TO MANIFOLD
PAR T #5011802-0
C
ARB
WATER
(A)
SEE NOTE
PLAIN
WATER (C)
SYRU
P
#
8
SYRUP #9
SYRUP
#
10
SYRUP #11
S
YRUP #12
SYRUP #7
INTERNALLY CARBONATED UNITS: A. PLAIN WATER TO THE CARBONATOR B. CARB WATER FROM INTERNAL CARBONATOR TO FLEX-MANIFOLD C. PLAIN WATER TO FLEX-MANIFOLD
FOR ASSISTANCE CALL (812) 246-7000
IN
OUT INTERNAL CARBONATOR TANK
MDH-302 RIGHT-HAND SIDE
SERVEND RECOMMENDED PLUMBING
2-1-1-2 FLEX LEFT TO RIGHT
POST-CHILL
FLEX-MANIFOLD
PRE-CHILL
INLET LINES
* EXTERNALLY CARBONATED UNITS: CARBONATOR IS REPLACED BY A BY-PASS TUBE
NOTE: SYRUP LINES NOT SHOWN
NOTE: INTERNALLY CARBONATED UNITS - FROM CARBONATOR PUMP TO CARBONATOR LOCATED ON UNIT EXTERNALLY CARBONATED UNITS - FROM EXTERNAL CARBONATOR TO MANIFOLD
PAR T #5011803-1
SYRUP #1
SYRUP #2
SYRUP #4
SYRUP #5
SYRUP #6
PLAIN
WATER
(C)
CARB WATER (A)
SEE NOTE
SYRUP #3 -
VARIETY VLV
*OPTIONAL*
VAR IE TY VALV E ON #3
1-WATER
(THRU COLD PLATE)
4-SYRUP
(THRU COLD PLATE)
2-SYRUP
(AMBIENT)
3 -SYRUP
(AMBIENT)
INTERNALLY CARBONATED UNITS: A. PLAIN WATER TO THE CARBONATOR B. CARB WATER FROM INTERNAL CARBONATOR TO FLEX-MANIFOLD C. PLAIN WATER TO FLEX-MANIFOLD
FOR ASSISTANCE CALL (812) 246-7000
IN
OUT INTERNAL CARBONATOR TANK
MANIFOLD TO CHANGE TO CARBONATED OR NON-CARBONATED WATER
VALVES
CARB WATER
5010331-2
5,6 4 3 1,2
PLAIN WATER
MDH-302 12 VALVE PLUMBING DIAGRAM
MDH-302 12 VALVE FLEX MANIFOLD (1 PER SIDE)
2-10
Part Number 020003999 6/14
Section 2 Installation Instructions
COLD CARB MDH-402 16 VALVE
SERVEND RECOMMENDED PLUMBING
2-1-1-1-3 FLEX LEFT TO RIGHT
MANIFOLD
CARBONATOR
COLDPLATE
MANIFOLD
CARBONATOR
COLDPLATE
INLET LINES
NOTE: SYRUP LINES NOT SHOWN
5010860-0
NOTE: SYRUP LINES NOT SHOWN
5010859-0
PLAIN WATER A
(TO CARBONATOR
FROM CARB PUMP)
PLAIN WATER A
(TO CARBONATOR
FROM CARB PUMP)
SYRUP #9
SYRUP #11
SYRUP #12
SYRUP #13
SYRUP #14
SYRUP #15
SYRUP #16
PLAIN WATER (B)
SYRUP #10
A. PLAIN WATER TO THE CARBONATOR B. PLAIN WATER TO MANIFOLD C. CARB WATER TO MANIFOLD
A. PLAIN WATER TO THE CARBONATOR B. PLAIN WATER TO MANIFOLD C. CARB WATER TO MANIFOLD
FOR ASSISTANCE CALL (812) 246-7000
COLD CARB MDH-402 16 VALVE
SERVEND RECOMMENDED PLUMBING
INLET LINES
PLAIN WATER (B)
SYRUP #2
SYRUP #3
SYRUP #4
SYRUP #5
SYRUP #6
SYRUP #7
SYRUP #8
SYRUP #1
FOR ASSISTANCE CALL (812) 246-7000
LEFT RIGHT
MANIFOLD TO CHANGE TO CARBONATED OR NON-CARBONATED WATER
VALVES
CARB WATER
5010131-2
67,8 5 4 1,2,3
PLAIN WATER
MDH-402 16 VALVE PLUMBING DIAGRAMS
MDH-402 16 VALVE FLEX MANIFOLD (1 PER SIDE)
Part Number 020003999 6/14 2-11
Installation Instructions Section 2
LEFT RIGHT
MDH-402 20 VALVE PLUMBING DIAGRAM
COLD CARB MDH-402 20 VALVE
SERVEND RECOMMENDED PLUMBING
A. PLAIN WATER TO THE CARBONATOR
3-1-2-1-3 FLEX LEFT TO RIGHT
MANIFOLD
COLDPLATE
FOR ASSISTANCE CALL (812) 246-7000
INLET LINES
PLAIN WATER A
PLAIN WATER (B)
(TO CARBONATOR
FROM CARB PUMP)
SYRUP #11
SYRUP #13
SYRUP #14
SYRUP #12
MDH-402 20 VALVE FLEX MANIFOLD (1 PER SIDE)
B. PLAIN WATER TO MANIFOLD C. CARB WATER TO MANIFOLD
CARBONATOR
NOTE: SYRUP LINES NOT SHOWN
SYRUP #15
SYRUP #16
SYRUP #17
SYRUP #18
5010862-0
SYRUP #19
SYRUP #20
COLD CARB MDH-402 20 VALVE
SERVEND RECOMMENDED PLUMBING
3-1-2-1-3 FLEX LEFT TO RIGHT
FOR ASSISTANCE CALL (812) 246-7000
PLAIN WATER A
(TO CARBONATOR
PLAIN WATER (B)
FROM CARB PUMP)
SYRUP #1
MANIFOLD
COLDPLATE
INLET LINES
SYRUP #3
SYRUP #2
SYRUP #4
A. PLAIN WATER TO THE CARBONATOR B. PLAIN WATER TO MANIFOLD C. CARB WATER TO MANIFOLD
CARBONATOR
NOTE: SYRUP LINES NOT SHOWN
SYRUP #5
SYRUP #6
SYRUP #7
SYRUP #8
SYRUP #9
5010859-0
SYRUP #10
MANIFOLD TO CHANGE TO CARBONATED OR NON-CARBONATED WATER
VALVES
78,9,10 5,6 4 1,2,3
CARB WATER
PLAIN WATER
5010676-0
2-12
Part Number 020003999 6/14
Section 2 Installation Instructions
Rear of Unit
A
To Drain
90° Elbow Fitting
Radiator Clamp
Flexible Tubing
Straight Fitting
Radiator Clamp
Holes for beverage lines
Drainage Through Bottom Drainage Through Back
Rear View
Radiator Clamp
Holes for drain pan drain
Flexible Tubing
CO2 System
ROUTING INTERNAL CARB TANK PURGE TUBE
Some models are equipped with an internal carbonation tank. These models require that the purge/pressure relief tubing be routed to a drain.
1. Remove the splash panel.
2. Uncoil tubing and route between the front of the dispenser and the drain pan.
3. Depending on drain location route the tubing through the tubing bundle cutout or out the back of the dispenser.
4. Verify the tubing is not kinked and then secure tubing to maintain a minimum 1" (2.5 cm) air gap at the drain. Follow any applicable local or national codes.
DRAINS
Part Number 020003999 6/14 2-13
Installation Instructions Section 2
Important
Important
Step by Step Installation
GENERAL
MDH series dispensers have a stainless steel cabinet and lighted merchandiser standard.
Beverage valves, coldplate connections, drain connections and electrical components are front serviceable.
CAPACITIES
Dispenser Valves Ice Storage
MDH-302 10 or 12 300 lbs
MDH-302 w/Extended
Merchandiser
MDH-402 16 or 20 400 lbs
MDH-402 w/24" Extended
Merchandiser
MDH-402 w/34" Extended
Merchandiser
10 or 12 300 lbs
16 or 20 400 lbs
16 or 20 400 lbs
SPECIFICATIONS CHART
MIN. MAX
Incoming Plain
Water Pressure
Plain Water
Pressure to Carb
Tank
Ambient
T emperature
CO
Pressure
2
(Primary) Electrical 1 15V/60 Hz/1 230V/50-60 Hz/1
Normal 60 psi*
Diet 40 psi*
B-I-B (Secondary) 75 psi or according to line run
Flavor Shots 30 psi or according to line run
* This is the optimal pressure. For high foam, decrease the pressure,
for spitting/popping, increase the pressure.
40 psi dynamic 70 psi static
55 psi 65 psi
40°F
(4°C)
90 psi 100 psi
Pre-mix Pressure
105°F
(41°C)
UNIT INSTALLATION
1. Place the dispenser in the desired loca tio n.
NOTE: The unit must be placed and operated in a horizontal, level position. This unit is not suitable for areas cleaned with a water jet, pressure washers or water hoses.
2. Run the beverage lines and water lines; make sure to install the water connections to the proper inlets. Connection “A” comes from the brass carbonator pump and connection “B” is the plain water supply.
3. Install plumbing drains and insulate.
4. Fill bin with ice.
5. Set flexible manifold for correct drink settings.
6. Turn water supply on to the dispense r.
7. Purge air from the carbonator tank. Lift the pressure relief valve tab on the carbonator tank until water comes out of the relief valve.
8. Connect the pump deck control lead to the pump motor.
9. Connect power supply cords. (There are 2 cords that need to be connected to a 115V power supply.)
10. Brix beverage valves.
SYSTEM PRESSURES
1. Incoming tap water - must be at a minimum dynamic pressure of 40 psi and maximum static pressure of 70 psi.
If incoming water pressure is under 40 psi dynamic, a water booster is recommended. If incoming water pressure is over 55 psi, a water regulating valve is recommended.
NOTE: For water booster setups, connect directly to the incoming water to the unit. A regulator may be n eeded to maintain 40 - 55 psi to the carb onator or water may be routed around the booster to the carbonator. If water pressure is too high to the carbonator, poor drink carbonation can result.
Water boosters are preset to turn on at 65 psi and off at 85 psi.
2. B-I-B pressure gauge must be set for 75 psi or according to your line run.
3. Carbonator Pressure gauge (Use Preset Regulator):
- Cold Carbonation set for 75 psi.
- Ambient systems must be set at 90 psi to 105 psi.
NOTE: For models with flavor shots you want to achieve
0.5 oz (14.787 cc) per second dispense, adjust secondary regulator or flow controls accordingly.
2-14
Part Number 020003999 6/14
Section 2 Installation Instructions
Drain Pan
ADA Ribbon Cable
ADA Harness
ADA Box Ribbon Connector
Valve Mount Cap
Important
ADA
Harness
ADA Wire
Harness Clip
ADA Box Ribbon Cable
Connected
ADA Cables
Drain Pan
ADA Box
ADA Box
ADA KEY PADS
These instructions are for installations with this option.
1. Remove power from the unit.
Merchandiser Removal
2. Remove the medallion from merchandiser to gain access to the area above the valve mount cap. Medallions are removed through the top of st andard merchandisers and either side of the extended merchandisers.
Splash Panel Removal
3. Remove the splash panel from the unit by removing the two (2) Phillips head screws holding it in place.
ADA Wiring
NOTE: Follow these instructions for the right and left sides of the unit.
4. Route the ADA ribbon cable under the drain pan.
6. Connect the ADA ribbon cable to the ADA wire harness that is fastened to the foam front by a wire clip.
7. Neatly tuck in and take up any slack remaining in the ADA ribbon cable so it will not be in the way of any moving parts or panels when they are placed back on the unit.
Drain Pan & ADA Key Pad Box
8. Attach the drain pan to the unit.
5. Locate the ADA harness, units with a crusher it will be on the left of the ice chute, non-crusher units will be on the right. Continue routing the ADA cable behind the valve mount cap up towards the ADA harness.
Part Number 020003999 6/14 2-15
9. Center the ADA Key Pad Box with the unit in front of the drain pan and secure into place.
If mounting the ADA Box directly in front of the drain pan on the countertop, leave a minimum of 1" (2.5 cm) space between the bottom edge of the drain pan and the ADA Box to allow space for drain pan removal.
10. Apply corresponding drink labels to the ADA key pads.
NOTE: If buttons are not used, they will be blanked out. The Cubed/Crushed buttons are only utilized on units configured with the Selectable Ice feature. (See ADA Key Pad Matrix Page 2-16)
Installation Instructions Section 2
12345 678910
12
20 Valve Dispensers
345 678910
Cubed Crushed
Cubed Crushed
12345 678910
11 12 13 14 15 16 17 18 19 20
Cubed Crushed
Cubed Crushed
Important
ADA Key Pad Matrix
Cubed Crushed12 Valve Dispensers
Cubed Crushed
123 4 56
12345 6 78910
1234 5678
12345678910
Cubed Crushed
Cubed Crushed16 Valve Dispensers
Cubed Crushed
789 101112
12345 6 78910
9101112 13141416
12345678910
Cubed Crushed
Cubed Crushed
Cubed Crushed
Finish Installation
11. Put the splash panel and merchandiser back onto the unit and reinstall the screws that hold them in place.
NOTE: Restore power to the unit.
STARTING YOUR BEVERAGE SYSTEM & DISPENSER
Upon completion of the beverage dispenser and/or system installation, all tubing, dispenser and system components must be cleaned and sanitized prior to use.
NOTE: At installation, equipment, dispensers and tubing get moved through many environments, dirt, dust, chases, insulation, drywall, etc. It is an important procedure and best practice to address cleaning to deliver the best quality drink to your customer.
Clean and sanitize the water and syrup circuits according to instructions provided in this manual. Clean and sanitize the dispenser components according to instructions provided in this manual. Seal to countertop when no legs are u sed with the unit. Consult and use local health codes if a discrepancy occurs between this manual and your local health codes.
2-16
Part Number 020003999 6/14
General System Overview
CO
2
1800
75
SYRUP
2
CO
SYRUP
60
Dispenser
Tap Water
1
Tap Water
3
Cylinder
2
CO
2
Internal Carbonation
MDH Series
Beverage Dispensing System
Bag-In-Box
4
Carton
Syrup
Syrup Pump
BIB
Countertop
show the basic operation of the
This is a simplified schematic to
beverage system.
NOTE:
Carbonated/Non-carbonated Beverage Manifolds
Carbonator Tank
Section 3
Operation
Typical Internal Carbonation Beverage Dispensing System
Typical MDH Ambient
System Overview
Typical External Carbonation (Ambient) Beverage Dispensing System
Part Number 020003999 6/14 3-1
Tap Water
1
Tap Water
5
Carbonator
Tank
3
CARBONATED WATER
NON-CARBONATED WATER
CO
2
2
CO
SYRUP
1800
Cylinder
2
NOTE:
This is a simplified schematic to show the basic operation of the beverage system.
Dispenser
w/Coldplate
SYRUP
90­100
60
CO
2
CO
Countertop
BIB Syrup Pump
Bag-In-Box
Syrup
SYRUP
2
SYRUP
Carton
4
Operation Section 3
PLAIN WATER TO MANIFOLD (NON-INSULATED)
COLD WATER TO CARBONATOR TANK (INSULATED)
CARBONATED WATER TO MANIFOLD (INSULATED)
PLAIN WATER TO MANIFOLD (NON-INSULATED)
NON-CARBONATED WATER TO WATER INLETS ON UNIT (NON-INSULATED) FROM CARBONATOR PUMP
REGULATOR 50-55 PSI
FOR TANK PRESSURES REFER TO MANUAL FOR SPECIFICATIONS
CARB TANK PLUMBING CHANGED TO A TEE FITTING ON UNITS WITH SERIAL NUMBER 610115880 AND UP
MUNICIPAL WATER SUPPLY
FILTRATION SYSTEM
B.I.B. SET TO 60 PSI
DWG. NO. 020005877 REV 1
CUT-IN 70 PSI CUT-OUT 100 PSI
BOOSTER SYSTEM
CO2 REGULATOR FIXED AT 75 PSI
FITTING NOT USED INSTALL 3/8 CAP NUT PART # 3094 AND WASHER 1701115
WATER FROM BOOSTER TO PUMP INLET
CO
2
SUPPLY
100 PSI MIN.
COLD CARBONATION DECK
NON-CARBONATED WATER TO WATER INLETS ON UNIT (NON-INSULATED) FROM CARBONATOR PUMP
NOTES:
- COLD CARBONATION DECK MUST BE WITHIN 10 FEET OF UNIT TO FUNCTION PROPERLY.
- COLD CARBONATION DECK MUST BE PLACED ON A LEVEL SURFACE.
- COLD CARBONATION DECK REQUIRES BOOSTER SYSTEM IF SUPPLY DYNAMIC WATER PRESSURE IS BELOW 40 PSI, OR, IF TWO UNITS ARE INSTALLED ON THE SAME WATER LINE.
- FILTRATION SYSTEM SHOULD BE PLACED AFTER BOOSTER PUMP. (PER CUSTOMER SPECIFICATIONS)
- ITEMS HAVE BEEN REMOVED FOR CLARITY
-12 VALVE UNIT IS SHOWN
MDH-302
NON-CARBONATED WATER TO WATER INLETS ON UNIT (NON-INSULATED) FROM CARBONATOR PUMP
COLD WATER TO
CARBONATOR TANK
(INSULATED)
MDH-302 Cold Carbonation System
Typical MDH-302 Cold Carbonation Beverage Dispensing System
3-2
Part Number 020003999 6/14
Section 3 Operation
Y
MDH-402 Cold Carbonation System
PLAIN WATER TO MANIFOLD (NON-INSULATED)
NON-CARBONATED WATER TO WATER INLETS ON UNIT (NON-INSULATED) FROM CARBONATOR PUMP
NOTES:
- COLD CARBONATION DECK MUST BE WITHIN 10 FEET OF UNIT TO FUNCTION PROPERLY.
- COLD CARBONATION DECK MUST BE PLACED ON A LEVEL SURFACE.
- COLD CARBONATION DECK REQUIRES BOOSTER SYSTEM IF SUPPLY WATER PRESSURE IS BELOW 40 PSI, OR, IF TWO UNITS ARE INSTALLED ON THE SAME WATER LINE.
- FILTRATION SYSTEM MAY BE PLACED BEFORE BOOSTER PUMP. (PER CUSTOMER SPECIFICATIONS)
- ITEMS HAVE BEEN REMOVED FOR CLARITY
-12 VALVE UNIT IS SHOWN
5010863-2
MDH-402
PLAIN WATER TO MANIFOLD (NON-INSULATED)
CARBONATED WATER TO MANIFOLD (INSULATED)
COLD WATER TO CARBONATOR TANK (INSULATED)
NON-CARBONATED WATER TO WATER INLETS ON UNIT (NON-INSULATED) FROM CARBONATOR PUMP
CO2 REGULATOR FIXED AT 75 PSI
CARBONATED WATER TO MANIFOLD (INSULATED)
COLD WATER TO CARBONATOR TANK (INSULATED)
CO2 SUPPLY 100 PSI MIN.
FOR TANK PRESSURES REFER TO MANUAL FOR SPECIFICATIONS
REGULATOR 50-55 PSI
WATER FROM BOOSTER TO PUMP INLET
COLD CARBONATION DECK
CUT-IN 70 PSI CUT-OUT 100 PSI
FILTRATION SYSTEM
BOOSTER SYSTEM
BIB SET TO 60 PSI
MUNICIPAL WATER SUPPL
Typical MDH-402 Cold Carbonation Beverage Dispensing System
Part Number 020003999 6/14 3-3
Operation Section 3
Merchandiser
Nozzles Key Switch
Drain Pan Grid
Drain PanSplash Panel
Nozzles
Ice Chute
(Crushed Ice on icepic™)
Nozzles
Selectable Ice on Units
with this Option
RECOMMENDED ICE OTHER ICE SIZES AND SHAPES
Dice
7/8" x 7/8" x 7/8"
(2.2 x 2.2 x 2.2 cm)
Half Dice
3/8" x 1-1/8" x 7/8"
(1.0 x 2.9 x 2.2 cm)
Contour
3/8" x 1-1/4" x 1-1/4"
(1.0 x 3.2 x 3.2 cm)
Mini
7/8" Dia. x 3/4" Long
(2.2 cm Dia. x 1.9 cm Long)
Gourmet-Small
1" Dia. x 3/4"
(2.5 cm Dia. x 1.9 cm)
Crescent Cube
0.75"
(1.9 cm)
0.38"
(1.0 cm)
1.13"
(2.9 cm)
1
RED
NO
2
3
6
4
5
COM NC
Component Identification
Sequence of Operation
ICE RECOMMENDED FOR DISPENSING
Dispensers are designed to dispense hard, cube ice up to one-inch square. The ice shapes and sizes listed above are recommended for dispensing. Warm “Super Cooled” Ice Before Dispensing: “Super Cooled” ice is not recommended for dispensing. “Super Cooled” ice is ice that has been stored in freezers below 32°F. If it is necessary to temporarily use “Super Cooled” ice, allow the ice to warm at room temperature for 25 to 30 minutes before placing the ice in the dispenser.
NOTE: Manitowoc Half Dice Ice has been shown to give the best performance in the icepic™ dispenser. Hoshizaki America, Inc., ice machines with cresent-style shape cubes are compatible with this dispenser but not recommended.
3-4
NON-ADJUSTABLE AGITATION TIMER
The timer is non-adjustable and is set to agitate the ice for 3 seconds every 3.5 hours. Activating the dispenser will reset the timer. After 3.5 hours of non-use, the timer will energize the dispenser motor.
The LED tells the technician in which mode the timer is operating. Rather than a jumper pin, this timer has a female spade connector that must be connected to terminal number 6.
When this jumper is in place, the LED will blink at one second intervals, this is the run mode.
When the jumper is open, the LED will flash every
0.4 second. This is the test mode and the timer will cycle every 55 seconds in test mode. If the timer is left in test mode, it will automatically reset to run mode.
Part Number 020003999 6/14
Section 3 Operation
ICE STORAGE AND DISPENSING
As the customer presses the rocking chute, the arm at the top left rear of the chute pushes upward on the door lock. The door opens until it contacts the stops in the mounting brackets. The plastic arm on the ice ch ute also activates the lever of the ice dispensing switch. When activated, the micro switch starts the gear motor. The gear motor turns the paddle wheel and agitator arm.
The paddlewheel carries ice. Periodic agitation is standard on the 30" and larger dispensers. During periodic agitation, the paddle wheel and agitator turn for approximately three seconds every three and one half­hours. The door lock prevents ice from being dispensed during the agitation cycle.
Rocking Chute Ice Dispensing
As the customer presses the rocking chute, the arm at the top left rear of the chute pushes upward on the door lock. The door opens until it contacts the stops in the mounting brackets. The plastic arm on the ice ch ute also activates the lever of the ice dispensing switch. When activated, the micro switch starts the gear motor. The gear motor turns the paddle wheel and agitator bar.
Crushed Ice Dispensing
As a customer presses the ice chute the rocking chute door lifts and actuates micro switch which initiates the crushed ice dispensing process. When activated, the micro switch starts the gear motor and ice crusher motor. Th e gear motor turns the p addle wheel and U-bar agitator. The paddle wheel carries ice to the crusher assembly. Once the ice reaches the crusher housing, four stationary blades and three rotating blades crush the ice and push it through the opening in the ice crusher housing. The crushed ice then falls through the opening into the ice chute, and into the customer’s cup.
Selectable Ice Sequence of Operation
As a customer presses the ice chute or pushes the sanitary lever towards the unit with their cup, with “crushed” selected on the ice selection pad, the rocking chute door lifts and actuates micro switch which initiates the crushed ice dispensing process. The micro switch is activated when the lever is approximately 1/4 inch from reaching the splash panel of the unit. When activated, the micro switch starts the gear motor and ice crusher motor. Th e gear motor turns the p addle wheel and U-bar agitator. The paddle wheel carries ice to the crusher assembly. Once the ice reaches the crusher housing, four stationary blades and three rotating blades crush the ice and push it through the opening in the ice crusher housing. The crushed ice then falls through the opening into the ice chute, and into the customer’s cup. If the
merchandiser is removed, no power is available to the crusher or gear motor and no ice can be crushed an d/or dispensed.
CARBONATION
The purpose of the carbonator is to take regular tap water at street water pressure (minimum 20 PSI, maximum 80 PSI, dynamic or flowing pressure), 1/2" water line and increase the water to beverage system pressure (usually 100 PSI). This water is then combined with the CO same pressure, the CO
gas. Because the water and gas are at the
2
will dissolve into the water.
2
Chilling the mixture before dispensing will assist in locking the carbon dioxide into the water. After dispensing, the CO The CO
will gradually leave the liquid due to pressure
2
may be unlocked from the liquid.
2
and temperature changes.
Components
The components of the carbonator are: water pump, an electric motor to operate the pump, carbonator tank where the water and CO
mix, and a water level control.
2
Operation
Carbon Dioxide (CO
) leaves the storage tank and
2
arrives at the carbonator tank through the gas inlet. Water supply enters the carbonator pump inlet at regular street water line pressure (minimum 20 PSI, maximum 80 PSI, dynamic or flowing pressure). The water pump increases the pressure of the water, which allows the water to flow into the carbonator tank. The CO
and the
2
water mix together in the carbonator to produce the carbonated water that is then sent to the soda dispenser.
The agitation of the water and CO
together in the tank
2
under high pressure creates the soda water. The quality of carbonation (percent of CO
mixed in the water)
2
increases as the water temperature decreases and exposure time increases.
The water level in the carbonator tank is controlled by a water level control in the tank. This control turns the pump motor off and on to maintain a preset level of liqu id in the tank. The water level control may be electronic probes or a mechanical float.
Part Number 020003999 6/14 3-5
Operation Section 3
From Water Supply
T o Non-carbonated Water Inlet Barb
Water to Carbonator Pump
Filter
Water Regulator 40-70 PSI
Booster System (If Required)
To CO
2
Manifold (B-I-B
Pumps) from
CO
2
Supply
70 PSI
To Syrup Inlet Barbs on Unit
T o B-I-B Pumps
from B-I-B
To B-I-B
Pump
B-I-B
Syrup Delivery System
Your syrup location can vary depending on the volume of beverages served and ease of accessibility. Your beverage system may sit in a back storage room or under the counter of the dispenser. Configurations are almost limitless. Check the temperatures expected for
Back Room Package
the storage location. Adverse temperatures can affect the storage and quality of beverage products. It is recommended the temperature of storage location should not fall below 40°F (4°C) or rise above 90°F (32°C).
1. Incoming tap water - should be at a minimum dynamic pressure of 40 psi and maximum static pressure of 70 psi.
2. Carbonator water pump motor - Powers the water pump. The water pump motor is part of the carbonator pump deck.
3. Carbonator water pump - Pumps tap water into the carbonator tank. The water pump is part of the carbonator . The incoming water for the carbonator must be first run through the pump before connecting to the proper cold plate inlet.
4. Internal/external carbonator tan k - Combines CO gas and tap water to form carbonated water. The “carbonator” is the carbonator tank, water pump and water pump motor.
5. CO
cylinder - Holds highly pressurized carbon
2
dioxide (CO
). The CO2 cylinder is a steel or
2
aluminum cylinder tank. CO
gas flows through the
2
primary pressure regulator.
3-6
6. B-I-B pressure gauge - Set for 75 psi. Indicates CO
pressure going to B-I-B pumps.
2
7. Primary pressure regulator - Lowers the CO pressure, to 100 psi, so the CO proper pressure to enter the carbonator regulator.
8. Lowered outgoing pressure - Set for 75 psi. Gauge indicates lowered outgoing pressure from the CO
cylinder after being routed through the primary
2
pressure regulator at 100 psi.
9. Secondary pressure regulator - Lowers the CO gas pressure before the CO
2
pump. CO
10. Syrup pump - Draws syrup out of the Bag-In-Box syrup package. Syrup flows through the syrup lines to the dispenser for chilling, then dispensing. There is a syrup pump for each Bag-In-Box syrup system.
11. Bag-In-Box syrup cartons - Box which contains a plastic bag, filled with syrup.
gas will be at the
2
gas flows to the syrup
pressure activates the syrup pump.
2
2
Part Number 020003999 6/14
gas
2
2
Section 3 Operation
Carbonated Water to Dispenser
3/8" Syrup Lines to
Dispenser
Incoming
Water
Carbonator
100 psi
CO
2
Soda Water
Pump
Racking
Regardless if you are working on a B-I-B or Figal system, a place will be designated for placement of the product. A rack (or shelf) system affords systematic placement and complete usage of the beverage p aid for. The B-I-B rack allows the boxes to lay properly for syrup dispersal. Please check with your B-I-B syrup supplier. Some boxes must be slightly tilted down, while others may be in virtually any position. The Figal tank rack keeps the newer and full tanks organized at one end of the beverage line with the partial tanks at the othe r.
B-I-B
The Bag-In-Box system refers to a plastic disposab le bag. The B-I-B normally contains 5 gallons of syrup, however some locations offer 2-1/2 gallon B-I-B units. This plastic bag is then held inside a cardboard or other container. B-I-B systems are for post-mix applications only .
Pumps
The syrup in a B-I-B system is delivered to the beverage system through gas operated pumps. These pumps extract the syrup out of the bags, forcing the syrup throughout the system.
Auto Bag Selectors
These are used on higher volume B-I-B systems where two or more bags of the same product are connected to one pump and one system. An auto bag selector is essentially a valve that automatically changes from one bag (or series of bags) to another bag (or series of bags) of syrup as the bags empty, allowing a constant flow of product.
FIGAL SYSTEM
Figal refers to the stainless steel tanks of pre-mix beverage or post-mix syrup. A small CO
tank pushes
2
the beverage out of the figal tank.
Tanks
The stainless steel Figal beverage tanks are easy to store and connect. When using the Figal tanks:
• Use a gas connector for the inlet fitting of the tank.
• Use a syrup connector for the outlet fitting of the tank.
• If more than one Figal tank is connected in series, when changing tanks, remove the tank closest to the original gas inlet while adding the new tank to the connector closest to the syrup outlet.
Part Number 020003999 6/14 3-7
Most Figal tanks have a self-closing valve on the tank as well as the gas and syrup connectors. This allows the operator of the system to change tanks without h aving to shut down the entire system. With this type of connector , push down on the connector while pulling u p on the snap ring around the opening of the connector. Then simply pull the connector off the tank.
Operation Section 3
Door
Stops
Door Lock
Door
Ice
Delivery
Switch
Door
Stops
Door
Door Lock
1/16" to
1/4"
Tab
Switch Arm
Operation Checks & Adjustments
ICE DELIVERY SWITCH ADJUSTMENT
To 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.
Begin by observing the chute while 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 must be no more than 1/4" (0.64 cm), but no less than 1/16" (0.16 cm).
CRUSHED OR CUBED DEFAULT
For MDH Models equipped with Selectable Ice Modules, this selectable ice option will allow the unit to always default to either cube or crushed ice or remain at the last selection. This only applies to control boards 020000875 Rev 7 and up.
How to Set Cube Default
1. Power on the unit by plugging in receptacle and holding the CUBE button at the same time. CUBE will flash 2 times. Unit will now change to cube ice 10 seconds after CRUSHED is selected.
How to Set Crush Default
2. Power on the unit by plugging in receptacle and holding the CRUSHED button at the same time. CRUSHED will flash 2 times. Unit will now change to crushed ice 10 seconds after CUBE is selected.
How to Set Last Selection Default
3. Power on the unit by plugging in receptacle and holding CUBE and CRUSHED at the same time. CUBE and CRUSHED will flash 2 times. Unit will now remain in selection of last request.
NOTE: If power is lost to the unit and then powered up again the unit will retain the last setting and not return to factory settings.
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.
3-8
AGITATION TIMER OPERATIONAL CHECK
For MDH Models equipped with Selectable Ice Modules there is a Selectable (CRUSHED and CUBE) ice agitation timer test mode:
1. Press and hold CUBE for over 1 second.
2. While holding CUBE, press CRUSHED three (3) times. All LEDs will flash indicating test mode.
3. While in the test mode, the agitator motor will cycle three (3) times, 3 seconds ON and 10 seconds OFF.
4. After the test mode is complete the unit will automatically reset to the run mode.
NOTE: To disable the tes t mo de bef or e th e th re e (3 ) cycles are complete, press the CUBE button.
Part Number 020003999 6/14
Section 4
!
Caution
! Warning
!
Warning
Maintenance
Cleaning
DAILY CLEANING
All cleaning must meet your local health department regulations. The following cleaning instructions are provided as a guide.
Use only warm soapy water to clean the exterior of the tower. Do not use solvents or other cleaning agents. Do not pour hot coffee into the drain pan. Pouring hot coffee down the drain pan can eventually crack the drain pan, especially if the drain pan is cold or still contains ice.
Electric Shock Hazard
Unplug unit before servicing or cleaning.
When using cleaning fluids or chemicals, rubber gloves and eye protection must be wor n.
Clean the dispensing valves:
6. Remove nozzles and diffusers from beverage valves.
Nozzle Removal
7. Rinse nozzle and diffuser with warm, clean water.
8. Clean nozzles and diffusers with soapy water and a soft bristle brush.
9. Clean the underside of the beverage valves with warm, soapy water. Rinse with clean damp towel.
10. Replace nozzles and diffusers on valves.
11. Turn on the key switch.
Clean the exterior and drain pan:
1. Turn off the key switch located on either right or left side of the unit.
2. Lift the grid and remove it from the drain pan.
3. Using mild soap, warm water and a clean cloth, wipe the drain pan and splash panel. Then, rinse with clean, warm water. Allow plenty of warm (not hot) water to run down the drain of the drain pan, to remove syrup residue that can clog the drain opening.
4. Wash the grid, then rinse with clean water. Place the grid back in the drain pan.
5. Wash all exterior surfaces of the unit with warm water and a clean cloth. Wipe again with a clean, dry cloth.
Part Number 020003999 6/14 4-1
Maintenance Section 4
! Warning
!
Warning
MONTHLY CLEANING
Unplug unit before servicing or cleaning ice bin. Ice bin contains part s tha t can move at any time and
will cause injury if hands are in the way.
When using cleaning fluids or chemicals, rubber gloves and eye protection must be worn .
Clean and sanitize the ice bin:
1. Unplug unit and remove all ice from the ice bin.
2. Mix a solution of mild detergent to clean the dispenser bin and components.
3. Wash the ice bin using a sponge and the mild detergent solution.
4. Using the mild detergent solution and a soft bristle brush or clean cloth, clean the following dispenser parts:
• Entire bin
• Paddle wheel
• Paddle wheel area
•Agitator
• Paddle wheel pin
• Ice chute
• Rear bushing
• Motor shaft
• Strip lids (where applicable)
5. Rinse all the parts in clean, running water.
6. Prepare 2 gallons of sanitizing solution by mixing 1/2 ounce of household bleach (that contains 5.25 % sodium hypochlorite) with 2 gallons of 120°F (49°C) water. The mixture must not exceed 100 PPM of chlorine. Or mix a solution of any approved sanitizer , following the directions for mixing and applying the sanitizer.
7. Sanitize the ice bin and cold plate with the sanitizing solution for at least 10 seconds.
8. Allow to air dry. Do not rinse.
Re-assembling the dispenser parts:
9. Re-assemble parts in the following order:
• Bin liner
• Paddle wheel
•Agitator
• Paddle wheel pin
• Ice chute
• Merchandiser
10. Hand tighten all knurled fasten e rs.
11. Pour in fresh, sanitary ice and replace the plastic lid on the top of the dispenser.
12. Plug in the unit’s electrical cord.
13. Check for proper ice dispensing.
CLEANING CHECKLIST
•Check CO the primary regulator gauge will point to a shaded area that reads “Low CO Cylinder.”
• Check syrup supply.
• Clean drain pan, grid and splash panel.
• Clean the valve nozzles and diffusers.
supply . If CO2 supply is low, an arrow on
2
” or “Change CO2
2
4-2
Part Number 020003999 6/14
Section 4 Maintenance
Preventive Maintenance
Preventive maintenance is a vital part of keeping your dispenser in top condition. Following the guidelines below will assist you in continued trouble-free operation of your unit.
1. Conduct daily maintenance of the machine.
2. Perform monthly maintenance of the machine.
3. Perform periodic maintenance and sanitizing of beverage system.
4. Do not overfill the dispenser bin with ice.
5. Do not allow the dispenser to sit for prolonged periods of non-use with ice in the bin.
6. Most ice dispenser service problems are caused by low usage of the ice dispenser.
7. Do not allow ice to remain in the bin more than a day in order to prevent ice from freezing together and/or stagnant ice.
Possible excess ice storage reasons:
• Storage capacity exceeds daily requirements.
• Low demand during the off season.
• Dispenser oversized with future growth in mind.
Lower ice storage to meet one day’s needs. If you manually fill ice, fill only with the appropriate amount of ice. Fill the dispenser with fresh ice each morning. Do not fill the dispenser at night just before shut down. Ice cubes can freeze together if not dispensed.
Disassembly
DISASSEMBLY FOR CLEANING AND MAINTENANCE
NOTE: Sanitize the ice dispenser at Initial Start-up in addition to monthly sanitizing. You will need a slotted screwdriver in order to disassemb le.
Disassemble parts in the following order:
A. Merchandiser B. Ice chute C. Paddle wheel or agitator pins D. Agitator E. Paddle wheel
F. Bin liner
G. Paddle wheel area
Beverage/Ice Dispenser
Accessing a Dispenser Bin that is Top Mounted with a Manitowoc Ice Machine:
1. Remove the front panel of the ice machine.
2. Remove the ice deflection baffle. This will give you access to the dispenser bin.
3. If the Manitowoc ice machine is operating, wait for the sheet of ice to fall into the dispenser bin.
Accessing a Dispenser Bin that is Top Mounted with a Manitowoc Ice Machine and Large Extended Merchandiser in front of the Ice Machine:
4. Access to the bin is possible through the strip lids on the side of the dispenser.
Disassembling the Dispenser Parts for Bin Cleaning:
5. Remove the front panel of the Manitowoc ice machine.
6. If the Manitowoc ice machine is operating, wait for the sheet of ice to fall into the dispenser bin. When the ice sheet falls into the dispenser bin, immediately place toggle switch of the ice machine to the OFF position. If the Manitowoc ice machine is NOT operating, place the toggle switch of the ice machine to the OFF position now.
Part Number 020003999 6/14 4-3
Maintenance Section 4
7. On MDH models without a top mounted ice machine, remove the plastic lid from the top of the dispenser.
8. Remove all ice from the dispenser.
9. Disconnect electrical power to the dispenser.
10. Remove the strip lids off the top left and top right of the dispenser bin.
1 1. There is a left bin and a r ight bin on both the 302 and
402 models. Clean and sanitize one bin, then follow the same procedures on the second bin.
Non-front Serviceable Motor
a. Rotate the agitator arm so the paddle wheel pin
handle is pointing up, toward the ceiling.
b. Prepare agitator pin for rem oval by removing the
stainless steel split ring.
c. Then remove the paddle wheel pin from the hole
in the agitator.
d. Push the agitator bar toward the back of the unit
until the agitator is free of the paddle wheel hub.
Front Serviceable Motor
a. With agitator arm in any position remove hitch
clip pin from the mushroom bushing on the rear of the ice bin.
b. Push the agitator bar toward the bushing to
remove it from the paddle wheel hub.
NOTE: If a top mount ice machine is installed, sliding the ice machine to one side will make bin component removal easier. If the ice machine is hard plumbed, it will need to be disconnected.
12. Remove paddle wheel, bin liner and paddle wheel area.
13. Move the front of the agitator to one side and slide the agitator forward until the rear of the agitator shaft is clear of the bushing.
14. Remove the agitator from the bin area.
15. Slide the paddle wheel from its shaft.
16. Loosen the four knurled fasteners that hold the bin liner in place.
17. Remove the bin liner.
18. Remove the paddle wheel area from the bin.
19. Discard the remaining ice in the bin.
DISASSEMBLE THE ROCKING CHUTE
1. Loosen the two knurled fasteners that hold the merchandiser in place.
2. Remove the merchandiser.
3. Remove outer bracket.
4. Remove door lock.
5. Remove door.
6. Remove ice chute.
Front Serviceable
Non-front Serviceable
4-4
DISASSEMBLE THE ICE CRUSHER ASSEMBLY
NOTE: These instructions cover icepic™ GENI, GENII, and Selectable Ice crushers.
1. Unplug unit before cleaning or servicing the crusher assembly.
Part Number 020003999 6/14
Section 4 Maintenance
GENII ICEPIC™ ONLY
COTTER PIN
CHUTE ROD
DECORATIVE CHUTE
GENI
GENII
Cotter Pin
Chute Rod
Decorative Chute
SELECTABLE ICE
GENI, GENII & SCI drip pans are the same. GENII is illustrated on the left.
GENI, GENII & SCI blade assemblies are the same. GENII is illustrated on the left.
2. Remove the merchandiser. The merchandiser is removed by taking out the two (2) screws located at the top of the merchandiser. Once the screws are removed, lift and rotate the top of the merchandiser towards you and then remove the merchandiser from the unit.
NOTE: When the merchandiser is removed, an electrical safety switch kills power to the entire unit.
3. Remove rocking chute door.
4. Remove the decorative ice chute by pulling the cotter pin out on the right side of the chute rod and pulling the chute rod toward the left side of the dispenser.
5. Remove the crusher drip pan by pulling up slightly on the crusher assembly and pulling the drip pan away from the foam front.
6. See the following steps to remove the ice crusher blade assembly from the crusher hous ing .
A. Unlock the crusher hub from the crusher
housing by pulling the locking tab out and rotating the hub clockwise.
B. Pull the hub and blade assembly out of the
housing approximately 1/2" (13 mm) to disengage the crusher axle from the motor shaft.
Part Number 020003999 6/14 4-5
C. Rotate the knob on the crusher axle so it is in a
vertical position. (This will assure the rotating blades will not interfere with pulling the blade assembly from the housing.)
D. Now the blade assembly will be free from the
housing. Completely remove the blade assembly from unit.
Maintenance Section 4
GENI ICEPIC™
HOUSING
ROCKING CHUTE DOOR
COSMETIC CHUTE
DRIP PAN
MOTOR SHAFT
BLADE/HUB ASSEMBLY
GENII ICEPIC™
SELECTABLE ICE
MONTHLY ICE CRUSHER ASSEMBLY CLEANING
Once the ice crusher hub assembly has been removed, the crusher is ready to be cleaned and sanitized. Follow the steps below for proper cleaning and sanitizing procedures.
1. Assure the unit is unplugged.
2. Mix a solution of mild detergent to clean the ice crusher components.
3. Using the mild detergent solution and a soft bristle brush or clean cloth, clean the following ice crusher components.
• Blade/hub assembly
• Cosmetic chute
•Drip pan
• Crusher housing
• Ice crusher motor shaft
• Rocking chute door
HOUSING DOOR
HOUSING
BLADE/HUB ASSEMBLY
MOTOR SHAFT
DRIP PAN
COSMETIC CHUTE
4-6
ICE DOOR
BLADE/HUB
ASSEMBLY
CRUSHED ICE DOOR
HOUSING
MOTOR SHAFT
DRIP PAN
COSMETIC CHUTE
SANITARY LEVER
Part Number 020003999 6/14
Section 4 Maintenance
GENI, GENII & SCI blade assemblies are the same. GENII is illustrated on the left.
GENI, GENII & SCI drip pans are the same. GENII is illustrated on the left.
4. Rinse all of the parts with clean water.
5. Prepare 2 gallons of sanitizing solution by mixing a 1/2 ounce of household bleach (that contains 5.25% sodium hypochlorite) with 2 gallons of 120°F (49°C) water. The mixture should not exceed 100 PPM of chlorine. Or mix a solution of any approved sanitizer, following the directions for mixing and applying the sanitizer.
6. Apply sanitizer to all parts with clean cloth, or by spraying.
7. Allow to air dry. DO NOT RINSE.
8. Reassemble the ice crusher ass embly by following the instructions in the “Reassembling the Ice Crusher Assembly” section.
9. Insert the blade assembly into crusher housing. When inserting blade assembly, align the stationary blades with the locating slots in the crusher housing.
10. When inserting the blade assembly into the crusher housing, make sure the axle knob is in a vertical position. This will align the rotating blades with the housing to assure a quick and easy installation.
1 1. Once all blades a re in the housing , align the crusher
axle with the motor shaft. Turn the axle knob and push the blade assembly toward the motor until the crusher hub is flush with the end of the housing.
REASSEMBLE THE ICE CRUSHER ASSEMBLY
1. Insert the blade assembly into the crusher housing. When inserting the blade assembly, align the stationary blades with the locating slots in the crusher housing.
2. When inserting the blade assembly into the crusher housing, make sure the axle knob is in a vertical position. This will align the rotating blades with the housing to assure a quick and easy installation.
3. Once all blades are in the housing, align the crusher axle with the motor shaft. Turn the axle knob and push the blade assembly toward the motor until the crusher hub is flush with the end of the housing.
4. To lock the blade assembly into the housing, rotate the crusher hub counterclockwise until the locking tab snaps into place and the crusher hub is secure.
12. To lock the blade assembly into the housing, rotate the crusher hub counterclockwise until the locking tab snaps into place and the crusher hub is secure.
13. Replace the crusher drip pan. Slide until it snaps into place.
14. Reattach the decorative ice chute by inserting the chute rod through the chute, housing mo un t an d motor mount. Secure the chute rod by inserting cotter pin through the rod on the right side of the housing mount. Make sure the arm of the microswitch is in front of vertical protrusions on top of the decorative chute.
15. Reinstall the rocking chute door.
16. Reinstall the merchandiser and secure with the two screws that were removed during disassembly.
17. 110V power may be reapplied when the unit is completely reassembled.
5. Replace the crusher drip pan, sliding it until it snaps into place by pulling up slightly on the crusher assembly and pushing the drip pan to wa rd the fo am front.
Part Number 020003999 6/14 4-7
Maintenance Section 4
DECORATIVE CHUTE
CHUTE ROD
COTTER PIN
GENI ICEPIC™
GENII ICEPIC™
Cotter Pin
Chute Rod
Decorative Chute
SELECTABLE ICE
GENII ICEPIC™ ONLY
6. Reattach the decorative ice chute by inserting the chute rod through the chute, housing mo un t an d motor mount. Secure the chute rod by inserting cotter pin through the rod on the right side of the housing mount. Make sure the arm of the microswitch is in front of vertical protrusions on top of the decorative chute.
8. Reinstall the merchandiser and secure with the two screws that were removed during disassembly.
9. Power may be reapplied when the unit is completely reassembled.
GEAR MOTOR REMOVAL
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.
NOTE: The drive train components changed to front serviceable units for the following model and serial numbers: MDH302 & MDH402 #610039642 & up.
Non-front Serviceable
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 pulling the hub of the paddle wheel to the back of the bin and off the gear motor shaft.
7. Reinstall the rocking chute door.
4-8
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. Remove the gear motor from the dispenser.
10. To install a replacement gear motor, reverse this procedure.
Part Number 020003999 6/14
Section 4 Maintenance
Front Serviceable
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. Unplug the dispenser.
2. Unplug the motor.
3. Remove motor mount pins.
6. Get correct alignment one of two ways: a. Turn drive shaft with an adjustable wrench,
being careful not to damage the drive shaft.
b. Plug in the unit, plug in the motor and use the
ice dispense switch to move the drive shaft into correct alignment.
7. If the unit was plugged in to help with alignment of
drive shaft, now unplug the unit.
8. Slide motor up into housing, making sure that the
tabs fit on the bracket.
4. Slide motor towards you.
5. Notice alignment of the chamfered edge of drive shaft. The new motor must have the same alignment (within 15 degrees).
9. Install motor mount pins.
10. Plug in motor.
11. Tes t unit.
Part Number 020003999 6/14 4-9
Maintenance Section 4
! Warning
!
Warning
Bag side
connector
Sanitizing
BEVERAGE SYSTEM CLEANING
Flush sanitizing solution from syrup system. Residual sanitizing solution left in system could
create a health hazard.
When using cleaning fluids or chemicals, rubber gloves and eye protection must be worn .
Sanitize the beverage system at initial start-up as well as regularly scheduled cleaning. The drain pan must be in place under soda valves, to carry away detergent and sanitizing agents that will be flushed through valves.
BAG-IN-BOX SYSTEM SANITATION The procedure below is for the sanitation of one
syrup circuit at a time. Repeat to sanitize additional circuits.
You will need the following items to clean and sanitize the Bag-in-Box (B-I-B) beverage system :
• Three (3) clean buckets
• Plastic brush or soft cloth
2. Disconnect the “syrup-line side” of the Bag-In-Box connector.
3. Rinse connector with warm tap water.
4. Connect syrup connector to B-I-B connector and immerse both into Bucket 1. A “bag-side” connector can be created by cutting the connector from an empty disposable syrup bag.
• Mild detergent
• Unscented bleach (5% Na CL O) or Commercial sanitizer
• Bag-In-Box bag connector
1. Prepare the following in the buckets:
• Bucket 1 — warm to hot tap water for rinsing.
• Bucket 2 — mild detergent and warm to hot water.
• Bucket 3 — mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture must supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water).
4-10
Part Number 020003999 6/14
Section 4 Maintenance
!
Caution
5. Draw rinse water through system until clean water is dispensed. Most beverage valves allow the syrup side to be manually activated by depressing the syrup pallet.
6. Connect Bucket 2 to system.
7. Draw detergent solution through system until solution is dispensed.
8. Repeat steps 2-7 until all syrup circuits contain detergent solution.
9. Allow detergent solution to remain in the system for 5 minutes.
10. Connect Bucket 3 to system.
11. Draw sanitizing solution through system until solution is dispensed.
12. Repeat step 11 until all syrup circuits contain sanitizer solution.
13. Allow sanitizer solution to remain in system for 15 minutes.
14. Remove nozzles and diffusers from beverage valves.
15. Scrub nozzles, diffusers and all removable valve parts (except electrical parts) with a plastic brush or a soft cloth and the detergent solution.
16. Soak nozzles, diffusers and removable valve parts (except electrical parts) in sanitizer for 15 minutes.
17. Replace nozzles, diffusers and valve parts.
18. Connect Bucket 1 to system.
19. Draw rinse water through system until no presence of sanitizer is detected.
20. Attach syrup connectors to B-I-Bs.
21. Draw syrup through system until only syrup is dispensed.
22. Discard first 2 drinks.
2. Disconnect all product and water lines from product tanks and remove carbonator.
3. Locate the Figal syrup tank for the circuit to be sanitized. Remove both quick disconnects from the Figal syrup tank. Rinse quick disconnects in tap water.
4. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until syrup is flushed from the system.
5. Connect detergent tank to the syrup line and draw detergent through the valve for two minutes. Then, allow remaining detergent to stay in the system for five minutes.
6. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until detergent is flushed from the system.
7. Remove valve nozzle and diffuser as shown in Daily Cleaning instructions. Using a plastic brush or a soft cloth and warm water , scrub the nozzle, diffuser, bottom of the dispensing valve and cup lever, if applicable.
8. Place removable valve parts (EXCEPT solenoids) in sanitizing solution for 15 minutes.
9. Replace valve diffuser and nozzle on the beverage valve.
10. Connect sanitizer tank to the syrup line and draw sanitizer through the valve for two minutes. Allow sanitizer to remain in the system for a minimum of 15 minutes.
11. Reconnect syrup and carbonated water lines.
12. Draw syrup through th e lines to rin se the sys te m. Discard drinks until at least two cups of satisfactory tasting beverage are dispensed through the valve.
Shipping, Storage and Relocation
FIGAL BEVERAGE SYSTEM
1. Prepare the following in three clean Figal tanks:
• Rinse tank - fill with room temperature tap water.
• Detergent tank - mix approved beverage system cleaner with warm water as directed.
• Sanitizing tank - mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture must supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water).
Part Number 020003999 6/14 4-11
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.
Maintenance Section 4
4
4
3
3
2
2
1
1
MDH Series Graphic Medallion Removal & Installation
The graphic medallions on the MDH Series Ice/Beverage Dispensers are made out of a flexible duratran that can be removed/replaced from the front of the unit without the use of tools (back-lit merchandiser light box does not need to be removed from the unit).
MEDALLION REMOVAL
1. Loosen and remove the 2 knurled screws from either the right or left sid e of the merchandiser frame starting with the bottom one first. Left side removal illustrated below. Note: A Phillips head screw driver may be used if the screws are too tight.
2. Remove the end portion of the frame that holds the medallion in the merchandiser.
3. With the end portion removed, pull the 2 clear plastic sheets apart inside the merchandiser to expose the medallion that is sandwiched in between.
4. Pull out only the medallion, leaving the 2 clear plastic sheets still inside the merchandiser.
5. To install/replace the medallion, slide the medallion back in between the 2 clear plastic sheets, replace the end portion of the frame and hand tighten the knurled screws.
4-12
Part Number 020003999 6/14
Section 5
Before Calling for Service
Checklist
If a problem arises during operation of your dispenser, follow the checklist below before calling service. Routine adjustments and maintenance procedures are not covered by the warranty.
Problem Possible Cause To Correct
Dispenser will not dispense ice (and NO SOUNDS are heard when machine is activated)
Dispenser will not dispense ice (motor runs but no ice movement is heard in bin)
Excessive clustering or bridging of ice Loaded ice not broken up (Caution:
Ice dispenses continuously Misaligned microswitch Adjust microswitch.
Thumping noise or irregular sound at a particular area of the dispenser
Dispensing crushed ice or reduced dispensing speed
Door will not close Ice jammed in chute Adjust bridge in ice machine or, when
Mounting brackets for rocking chute have spread too far apart
No power Check electrical connection. Loose wire in electrical system Thoroughly check all wire connections. Dispenser overloaded with ice Remove ice from dispenser until unit will
operate.
Motor not working Check thermally protected motor.
Replace motor or capacitor if necessary. No ice in bin Fill dispenser with ice. Door not opening Check rocking chute mechanism or
electric solenoid operation. Paddle wheel pin slipped from the paddle
wheel
Super cooled ice is not covered by the Servend warranty.)
Excessive water spilling from the ice machine
Poorly adjusted ice machine Adjust ice machine to eliminate large
Extremely low usage of the dispenser Lower the ice level in the bin.
Agitation timer set incorrectly Test agitation timer. Shaved ice clusters in the bin Remove clusters, discover why ice is
Water spillage from ice machine into dispenser bin
Agitation timer Test agitation timer. Bridge of ice sheet is too thick Adjust ice machine. Paddle wheel area broken or cracked Replace paddle wheel area. Ice clusters in bin Break up or remove clusters. Door not fully open Adjust door.
Door and/or door lock has come out of place
Replace paddle wheel pin.
Break ice clusters before manually filling
the dispenser. (See ice
recommendations.)
Adjust ice machine to eliminate water
spillage.
waffle shapes.
shaving, and then repair.
Adjust ice machine.
manually filling, break up clusters.
Replace door and lock into proper
position.
Bend parts into shape.
Part Number 020003999 6/14 5-1
Before Calling for Service Section 5
icepic™ Troubleshooting
Problem Possible Cause To Correct
DISPENSER DOES NOT DISPENSE CRUSHED ICE
Nothing is heard
Crusher motor hums but does not turn Blades obstructed Check for obstructions in ice crusher
Crusher dispense door does not open Door solenoid faulty Replace solenoid.
Gear box on motor Gear box on motor faulty Replace ice crusher motor assembly.
Crusher motor turns but gear motor for paddle wheel/agitator bar does not turn
Nothing on dispenser works No power to dispenser Check power source.
Difficulty inserting blade/hub assembly into crusher housing
Crushed ice dispenses continuously, or by itself
No flashing lights on keypad – Fluorescent light was on, crusher and whole ice dispenser will not function, transformer breaker blown
No power Check power source and power cord. Loose wire in electrical system Check wiring. Dispense switch faulty Replace switch. Crusher motor faulty Replace motor/gear box. Dispenser safety switch open Assure merchandiser is installed correctly
with the safety switch in the closed position.
housing. Motor faulty Replace motor. Faulty start relay/capacitor Check relay/capacitor and replace if bad.
Loose wiring to solenoid Check wiring.
Crusher axle broken Replace crusher axle. Agitator gear motor faulty Replace agitator gear motor. Loose wiring Check wiring. Obstruction in Ice bin stopping motor Check for obstruction.
Dispenser safety switch open Assure merchandiser is installed correctly
with the safety switch in the closed
position. Loose wiring Check wiring. a. Stationary blades not aligned with
locating slots at top and bottom of crusher housing
b. Rotating blades not in vertical position c. Check for ice in crusher housing Ice dispense switch faulty Adjust bridge in ice machine or, when
Water shorted out wirin g har ness on valves only
See “Disassemble the Ice Crusher
Assembly” section in this manual.
manually filling, break up clusters.
Clean up water and reset transformer.
5-2
Part Number 020003999 6/14
Section 5 Before Calling for Service
1. Remove probe electronics.
2. Pass magnetic tip of screwdriver by lower end of tube extending from electronics package.
3. Reed switch will close.
4. Carbonator operates.
Pump Troubleshooting
Problem Possible Cause Corrective Action
Pump motor does not shut off
Problem with probe or probe harness
Pump motor intermittent
Pump motor does not pump
Selectable Ice Troubleshooting
Problem Possible Cause To Correct
DISPENSER DOES NOT DISPENSE CRUSHED ICE
Nothing is heard
Crusher motor hums but does not turn Blades obstructed Check for obstructions in ice crusher
Crusher dispense door does not open Door solenoid faulty Replace solenoid.
Gear box on motor Gear box on motor faulty Replace ice crusher motor assembly.
Crusher motor turns but gear motor for paddle wheel/agitator bar does not turn
Nothing on dispenser works No power to dispenser Check power source.
Difficulty inserting blade/hub assembly into crusher housing
Crushed ice dispenses continuously, or by itself
No flashing lights on keypad – Fluorescent light was on, crusher and whole ice dispenser will not function, transformer breaker blown
Problem with probe or probe harness
Water pressure from water source is not high enough
No power Check power source and power cord. Loose wire in electrical system Check wiring. Dispense switch faulty Replace switch. Crusher motor faulty Replace motor/gear box. Dispenser safety switch open Assure merchandiser is installed
Motor faulty Replace motor. Faulty start relay/capacitor Check relay/capacitor and replace if bad.
Loose wiring to solenoid Check wiring.
Crusher axle broken Replace crusher axle. Agitator gear motor faulty Replace agitator gear motor. Loose wiring Check wiring. Obstruction in Ice bin stopping motor Check for obstruction.
Dispenser safety switch opens Assure merchandiser is installed
Loose wiring Check wiring. a. Stationary blades not aligned with
locating slots at top and bottom of crusher housing
b. Rotating blades not in vertical position c. Check for ice in crusher housing Ice dispense switch faulty Adjust bridge in ice machine or, when
Water shorted out wiring harness on valves only
Verify water pressure leading into pump inlet is 40 psi
minimum.
correctly with the safety switch in the closed position.
housing.
correctly with the safety switch in the closed position.
See “Disassemble the Ice Crusher Assembly” section in this manual.
manually filling, break up clusters. Clean up water and reset transformer.
Part Number 020003999 6/14 5-3
Before Calling for Service Section 5
Drink T roubleshooting
Condition Investigation Check Correction
Water only dispensing No pressure Regulator(s) out of adjustment Check/adjust regulator(s).
Install fresh tank.
2
line pinched, kinked or
Check/repair/replace CO2 line.
or reset breaker.
Replace water filter. Check/clean/replace pump strainer. Check/clean/repair water check valve. Check for frozen water line. Internal
carbonator unit only.
motor, electrode or liquid level control.
Install fresh tank.
2
line pinched, kinked or
Check/repair/replace CO2 line.
Adjust CO
pressure due to leaks Repair CO2 leaks.
2
Clean out the lines.
if necessary.
replace regulator if necessary.
pressure or change the tank.
2
pressure or replace regulator
2
supply. Reset pressure or
2
Syrup and CO
only
2
Carbonator No power Check power supply. Plug in carbonator
dispensing
Syrup and plain water
No pressure Out of CO
only dispensing
One valve will not dispense anything
Beverage dispensed is too sweet
Beverage is not sweet enough
Is there power to the valve?
Is the ratio (brix) of the drink correct?
Is the ratio (brix) of the drink correct?
Drinks are foaming Are system pressures
correct?
No water, syrup or gas dispensing
Is there power to the unit?
Is power coming through the key switch?
Is there power to the key switch?
Out of CO Defective regulator(s) Check/repair/replace regulator(s). CO
2
obstructed
Water supply Make sure water is turned “on”.
Defective carbonator Check/repair/replace carbonator pump,
HP regulator out of adjustment Adjust HP regulator to the proper setting. Defective HP regulator Check/repair/replace HP regulator. CO
2
obstructed Broken wire or loose connection Replace/repair wire or connector. Bad microswitch Replace microswitch. Flow control out of adjustment Adjust the flow control. Insufficient soda flow due to low
carbonator pressure Low CO Obstruction in the water or soda
line Flow control out of adjustment Adjust the flow control. Soda flow too high Reset CO
Obstruction in syrup line Clean out the syrup line. Over carbonation Check CO
Dirty lines/valves Clean/sanitize entire system. No power Plug in unit or reset breaker. Power to control box Replace fuse or control box. Key switch “off” Turn switch “on”. Key switch defective Replace key switch.
No power through the transformer Reset/replace transformer.
5-4
Part Number 020003999 6/14
Section 5 Before Calling for Service
Liquid Level Control Troubleshooting
START
START
Does Pump motor
come on?
No
No
Yes
Yes
Black and/or red probe
Black and/or red probe
shorted. Remove
shorted. Remove
probes , s traighten or
probes , s traighten or replace if necessary.
replace if necessary.
Check pump
Check pump
motor and
motor and
wiring.
wiring.
Remove red
Remove red
and black
and black
wires from
wires from LLC.
Yes
Yes
No
No
Measure AC
Measure AC
voltage
voltage
across load
across load
terminals on
terminals on
Yes
Yes
voltage
voltage
(± 10%)
(± 10%)
present
present
LLC.
Does
Does
pump
pump motor
motor come
come
on?
on?
LLC.
LLC.
Is line
Is line
?
?
Yes
Yes
motor operation
intermittent?
intermittent
Short “H” and
Short “H” and
“C” terminals
“C” terminals
Is pump Is pump
motor
operation
?
No
No
on LLC.
on LLC.
Does
Does
the
the
pump
pump
motor
motor
shut
shut
off?
off?
No
No
Yes
Yes
Check probe
Check probe
harness, harness
harness, harness
connections and
connections and
water supply.
water supply.
Part Number 020003999 6/14 5-5
No
No
END
END
Replace
Replace
LLC
LLC
Before Calling for Service Section 5
THIS PA GE INTENTIO NALLY LEFT BLANK
5-6
Part Number 020003999 6/14
© 2014 Manitowoc Continuing product improvements
may necessitate change of specifications without notice.
Part Number 020003999 6/14
Manitowoc Beverage Systems
2100 Future Drive
Sellersburg, IN 47172, USA
Ph: 812-246-7000 Fax: 812-246-7024
Visit us online at: www.manitowocfsg.com
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use