Manitowoc Beverage Equipment
2100 Future Drive Sellersburg, IN 47172-1868
Tel: 812.246.7000, 800.367.4233 Fax: 812.246.9922
www.manitowocbeverage.com
In accordance with our policy of continuous product development and
improvement, this information is subject to change at any time without notice.
December 03, 2007 REV5
MD/MDH SERIES
MD 150/175/200/250 & MDH 302/402 Beverage/Ice Dispensers
INSTALLATION & SERVICE GUIDE
Part Number 5010330
FOREWORD
Manitowoc Beverage Equipment (MBE) developed this manual as a reference guide for the owner/
operator, service agent, and installer of this equipment. Please read this manual before installation
or operation of the machine. A qualified service technician should perform installation and start-
up of this equipment, consult the
Troubleshooting Guide
within this manual for service assistance.
If you cannot correct the service problem, call your MBE Service Agent or Distributor. Always have your model and
serial number available when you call.
Your Service Agent ___________________________________________________________________
Service Agent Telephone Number ______________________________________________________
Your Local MBE Distributor ___________________________________________________________
Distributor Telephone Number _________________________________________________________
Model Number ______________________________________________________________________
Serial Number _______________________________________________________________________
Installation Date _____________________________________________________________________
UNPACKING AND INSPECTION
Note: The dispenser was thoroughly inspected before leaving the factory. Any damage or irregularities
should be noted at the time of delivery.
WARRANTY INFORMATION
Consult your local MBE Distributor for terms and conditions of your warranty. Your warranty specifically
excludes all beverage valve brixing, general adjustments, cleaning, accessories and related servicing.
Your warranty card must be returned to Manitowoc Beverage Equipment to activate the warranty on this
equipment. If a warranty card is not returned, the warranty period can begin when the equipment leaves
the MBE factory.
No equipment may be returned to Manitowoc Beverage Equipment without a written Return Materials
Authorization (RMA). Equipment returned without an RMA will be refused at MBE’s dock and returned
to the sender at the sender’s expense.
Please contact your local MBE distributor for return procedures.
FOREWORD ........................................................................................................ 2
UNPACKING AND INSPECTION ........................................................................ 2
WARRANTY INFORMATION ............................................................................... 2
SAFETY ............................................................................................................... 6
IMPORTANT SAFETY INSTRUCTIONS ............................................................................. 6
CARBON DIOXIDE WARNING ........................................................................................... 6
QUALIFIED SERVICE PERSONNEL .................................................................................. 6
SHIPPING, STORAGE, AND RELOCATION ....................................................................... 6
ADDITIONAL WARNINGS ................................................................................................. 6
GROUNDING IN STRUCTIONS ......................................................................................... 7
INSTALLATION .................................................................................................... 8
PRE-INSTALLATION CHECK LIST .................................................................................... 8
LEGS ................................................................................................................................ 8
UNIT INSTALLATION ........................................................................................................ 9
DRAINAGE OPTIONS ....................................................................................................... 9
CARB TANK PURGE TUBE ROUTING .............................................................................10
COLD CARB AND AMBIENT SYSTEM PRESSURES ........................................................ 11
AMBIENT BAG-IN-BOX (B-I-B) SYSTEM .......................................................................... 11
COLD CARB BAG-IN-BOX (B-I-B) SYSTEM ...................................................................... 11
TOP MOUNTED ICEMAKER REQUIREMENTS .................................................................13
ICE FLOW RESTRICTOR ................................................................................................. 13
BAFFLE FOR MANITOWOC™ CUBERS ..........................................................................14
BAFFLE FOR "Q" SERIES ICE MACHINES ......................................................................14
MANUAL FILL LID FOR DISPENSERS WITH A CUBER ..................................................14
PLUMBING DIAGRAM LOCATION ...................................................................................15
MD-150 6 VALVE PLUMBING DIAGRAM ..........................................................................16
MD-150 6 VALVE FLEX MANIFOLD .................................................................................. 16
MD-175 8 VALVE PLUMBING DIAGRAM ..........................................................................17
MD-175 8 VALVE FLEX MANIFOLD .................................................................................17
MD-200/250 8 VALVE PLUMBING DIAGRAM ...................................................................18
MD-200/250 8 VALVE FLEX MANIFOLD ...........................................................................18
MD-200/250 10 VALVE PLUMBING DIAGRAM .................................................................19
MD-200/250 10 VALVE FLEX MANIFOLD .........................................................................19
MD-302 12 VALVE PLUMBING DIAGRAM ........................................................................ 20
MD-302 12 VALVE FLEX MANIFOLD ............................................................................... 20
MD-402 16 VALVE PLUMBING DIAGRAMS .....................................................................21
MD-402 16 VALVE FLEX MANIFOLD ............................................................................... 21
MD-402 20 VALVE PLUMBING DIAGRAMS .....................................................................22
MD-402 20 VALVE FLEX MANIFOLD ............................................................................... 22
TABLE OF CONTENTS
OPERATION ...................................................................................................... 23
UNIT INSPECTION ...........................................................................................................23
ICE STORAGE AND DISPENSING ...................................................................................23
ROCKING CHUTE ICE DISPENSING ................................................................................23
COLD PLATE BEVERAGE COOLING ...............................................................................23
BEVERAGE VALVES ........................................................................................................23
AUTO BAG SELECTORS ................................................................................................. 24
B-I-B ................................................................................................................................. 24
PUMPS ............................................................................................................................24
RACKING .........................................................................................................................24
PRE-MIX & POST-MIX BEVERAGE DISPENSERS ..........................................................24
BACK ROOM PACKAGE ..................................................................................................25
BAG-IN-BOX SYSTEM .....................................................................................................25
FIGAL SYSTEM ...............................................................................................................26
CARBONATION ................................................................................................................27
INTERNAL CARBONATION .............................................................................................. 27
MD SERIES COUNTERTOP MEASUREMENTS ................................................................ 28
MD SERIES SPECIFICATIONS ........................................................................................ 29
MDH SERIES COUNTERTOP MEASUREMENTS .............................................................. 30
MDH SERIES SPECIFICATIONS ...................................................................................... 31
ROCKING CHUTE ICE DELIVERY SWITCH ADJUSTMENT .............................................. 32
SETTING THE AUTOMATIC AGITATION TIMER ...............................................................33
115V/220V NON ADJUSTABLE AGITATION TIMER .......................................................... 33
SEQUENCE OF OPERATION ............................................................................................ 34
USER MAINTENANCE ...................................................................................... 35
PREVENTATIVE MAINTENANCE ...................................................................................... 35
HOW TO DISASSEMBLE FOR CLEANING OR MAINTENANCE ....................................... 35
DAILY CLEANING .............................................................................................................38
MONTHLY CLEANING ...................................................................................................... 39
BEVERAGE SYSTEM CLEANING ..................................................................................... 40
BAG-IN-BOX SYSTEM .....................................................................................................40
FIGAL BEVERAGE SYSTEM ............................................................................................ 41
TABLE OF CONTENTS
5
Installation and Service Manual
EXPLODED VIEWS, PARTS & DIAGRAMS ..................................................... 42
MD 150/175/200/250 EXPLODED VIEW ............................................................................42
MD 150 PARTS LIST .......................................................................................................43
MD 175 PARTS LIST .......................................................................................................43
MD 200/250 PARTS LIST .................................................................................................44
MDH 302/402 EXPLODED VIEW .......................................................................................45
MDH 302 PARTS LIST .....................................................................................................46
MDH 402 PARTS LIST .....................................................................................................46
MD 150 115V PRE-MIX WIRING DIAGRAM ......................................................................47
MD 150/175/200 115V WIRING DIAGRAM ........................................................................ 48
MD 150 220V PRE-MIX WIRING DIAGRAM ......................................................................49
MD 150/175/200 220V WIRING DIAGRAM ........................................................................50
MD 250 115V WIRING DIAGRAM ..................................................................................... 51
MD 250 220V WIRING DIAGRAM ..................................................................................... 52
MDH 302 115V WIRING DIAGRAM ...................................................................................53
MDH 302 220V WIRING HARNESS .................................................................................. 54
MDH 402 115V WIRING DIAGRAM ...................................................................................55
MDH 402 220V WIRING DIAGRAM ...................................................................................56
TROUBLESHOOTING ....................................................................................... 57
PUMP ...............................................................................................................................57
DRINKS ............................................................................................................................58
LIQUID LEVEL CONTROL ................................................................................................60
INDEX ................................................................................................................ 63
TABLE OF CONTENTS
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
Carefully read all safety messages in this manual. Learn how to operate the MD unit properly. Do not
allow anyone to operate the unit without proper training and keep it in proper working condition.
Unauthorized modifications to the MD may impair function and/or safety and affect the life of the unit.
CARBON DIOXIDE WARNING
QUALIFIED SERVICE PERSONNEL
SHIPPING, STORAGE, AND RELOCATION
ADDITIONAL WARNINGS
Installation and start-up of this equipment should be done by a qualified service technician. Operation,
maintenance, and cleaning information in this manual are provided for the user/operator of the equipment.
Save these instructions.
DANGER: Carbon Dioxide (CO
2
) displaces oxygen. Exposure to a high concentration of CO
2
gas causes
tremors, which are followed rapidly by loss of consciousness and suffocation. If a CO
2
gas leak is
suspected, particularly in a small area, immediately ventilate the area before repairing the leak. CO
2
lines
and pumps should not be installed in an enclosed space. An enclosed space can be a cooler or small
room or closet. This may include convenience stores with glass door self serve coolers. If you suspect CO
2
may build up in an area, venting of the B-I-B pumps and / or CO
2
monitors should be utilized.
WARNING: Only trained and certified electrical and plumbing technicians should service this unit. All
wiring and plumbing must conform to national and local codes.
CAUTION: Before shipping, storing, or relocating this unit, syrup systems must be sanitized. After
sanitizing, all liquids (sanitizing solution and water) must be purged from the unit. A freezing environ-
ment causes residual sanitizing solution or water remaining inside the unit to freeze, resulting in
damage to internal components.
7
Installation and Service Manual
GROUNDING IN STRUCTIONS
SAFETY
This appliance must be grounded. In the event of malfunction or breakdown, grounding provides a
path of least resistance for electric current to reduce the risk of electric shock. This appliance is
equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug
must be plugged into an appropriate outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
DANGER – Improper connection of the equipment-grounding conductor can result in a risk of elec-
tric 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 neces-
sary, do not connect the equipment-grounding conductor to a live terminal. Check with a qualified
electrician or serviceman if the grounding instructions are not completely understood, or if in doubt
as to whether the appliance is properly grounded. Do not modify the plug provided with the appli-
ance – if it will not fit the outlet, have a proper outlet installed by a qualified electrician.
WARNING – When using electric appliances, basic precautions should always be followed, includ-
ing the following:
a) Read all the instructions before using the appliance.
b) To reduce he risk of injury, close supervision is necessary when an appliance is used near
children.
c) Do not contact moving parts.
d) Only use attachments recommended or sold by the manufacturer.
e) Do not use outdoors.
f) For a cord-connected appliance, the following shall be included:
•Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
•Unplug from outlet when not in use and before servicing or cleaning.
•Do not operate any appliance with a damaged cord or plug, or after the appliance
malfunctions or is dropped or damaged in any manner. Return appliance to the nearest
authorized service facility for examination, repair, or electrical or mechanical adjust-
ment.
g) For a permanently connected appliance – Turn the power switch to the off position when
the appliance is not in use and before servicing or cleaning.
h) For an appliance with a replaceable lamp – always unplug before replacing the lamp.
Replace the bulb with the same type.
i) For a grounded appliance – Connect to a properly grounded outlet only. See Grounding
Instructions.
SAVE THESE INSTRUCTIONS
WARNING
:
Risk of electrical shock. Connect to a properly grounded outlet only.
8
INSTALLATION
PRE-INSTALLATION CHECK LIST
When installing any system, first make sure the major components are available. Generally the major components
necessary for an installation are:
Pre-mix system:
CO2 regulator set
Product connectors for Figal tank
Gas connectors for Figal tank
Beverage dispenser
Beverage tubing
CO2 tank
Figal beverage tanks
Stepless (Oetiker) clamps
Chain for CO2 tank
Post mix system:
CO2 regulator set
Beverage dispenser
Beverage tubing
CO2 tank
Carbonator
Stepless (Oetiker) clamps
Chain for CO2 tank
Double Check:
Do you have enough space to install the dis-
penser or a dispenser and top mounted cuber?
Does the top mounted cuber (if utilized) have a
minimum of 6 inches (15.3) cm) clearance on
all sides?
Is the countertop level?
Can the countertop support the weight of the
dispenser, or the dispenser/cuber combination
plus the weight of the stored ice?
Also consider the location of the following items before installation:
Figal system also:
Syrup connectors for Figal tank
Gas connectors for Figal tank
Figal syrup tanks
B-I-B System also:
B-I-B connectors
B-I-B regulator set
B-I-B rack
B-I-B syrup boxes
Do you have enough space to install the dis-
penser or a dispenser and top mounted cu-
ber?
Does the top mounted cuber (if utilized) have
a minimum of 6 inches (15.3) cm) clearance
on all sides?
Is the countertop level?
Can the countertop support the weight of the
dispenser, or the dispenser/cuber combination
plus the weight of the stored ice?
Water line
Drain
Power outlet
Heating and air conditioning ducts
LEGS
Legs are optional equipment with most Servend dispens-
ers. Standard legs are four-inch (10.2 cm) tall painted
steel legs.
When installing legs on a MD Series dispenser, leg
braces should be used. These are metal braces fitting
side to side under the dispenser that reinforce the leg
attachment area.
CAUTION:
It is recommended if an icemaker is installed on top of the dis-
penser, legs should NOT be installed.
Installation and Service Manual
9
INSTALLATION
UNIT INSTALLATION
1. Place the dispenser in the desired location.
2. Run the beverage lines and water lines (make sure to
install the water connections to the proper inlets. Con-
nection “A” comes from the procon pump and is your
carbonated water supply and Connection “B” is your
plain water supply. (Refer to plumbing diagrams.)
3. Install drain plumbing and insulate.
(See Drainage Options below)
4. Set flexible manifold for correct drink settings.
5. Turn water supply on to the dispenser. Water pres-
sure should be between 40 and 55 psi. If not in-be-
tween those pressures proper measures must be
taken to regulate them to correct settings.
6. Turn CO2 supply on to the dispenser. Each cold carb
pump deck is furnished with a fixed regulator set at
75 psi. Ambient units need to be set between 90 and
100 psi.
7. Fill bin with ice.
8. Connect power supply.
9. Brix beverage valves.
10. Meet all code requirements.
DRAINAGE OPTIONS
The drains for MD Series connects to the drain pan.
Option One
Drainage through the bottom of the unit:
Option Two
Drainage through the back of the unit:
NOTE: The MDH 302 & 402 will have two drains
90 elbow fitting
Radiator clamp
Radiator clamp
Flexible tubing
Straight fitting Radiator clamp
Flexible tubing
Holes for
beverage
lines
Holes for
drain pan
drain
10
A
To Drain
A
B
A
C
Drain Pan Pressure Relif Valve
INSTALLATION
CARB TANK PURGE TUBE ROUTING
1. During installation of unit the carbonator tank purge
tube (A) must be properly routed to a drain. Once
the splash panel has been removed from unit re-
move twist tie (B) that holds carbonator tank purge
tube.
2. Route carbonator tank purge tube (A) down front of
unit and behind drain pan. Be sure not to collapse or
kink carbonator tank purge tube during routing from
unit to drain. (C) Purge tube is connected to the pres-
sure relief valve on carbonator tank and must be
routed to a drain
3. The carbonator tank purge tube (A) can be routed
down through the counter top that unit has been in-
stalled on or out the rear of unit. Then install carbon-
ator tank purge tube to a drain. Follow all local and
national plumbing codes when routing carbonator
tank purge tube to the drain.
Installation and Service Manual
11
AMBIENT BAG-IN-BOX (B-I-B) SYSTEM
INSTALLATION
COLD CARB AND AMBIENT SYSTEM PRESSURES
1. Incoming tap water should be at a minimum pres-
sure of 40 psi and a maximum of 55psi.
2. BIB pressure gauge set for 60 psi.
3. Carbonator Pressure gauge:
• Cold Carbonation set for 75 psi.
• Ambient systems should be set at 90 psi to 100
psi.
NOTE: If incoming water pressure is under 40 psi, a water booster is recommended. If incoming water pressure is
over 55 psi, a water regulating valve is required.
COLD CARB BAG-IN-BOX (B-I-B) SYSTEM
90-
1800
60
100
CO2
SYRUP
CO2
SYRUP
CARBONATED WATER
NON-CARBONATED WATER
SYRUP
SYRUP
2
CO
Drawing #: 5010102-0
Typical MD Ambient
System Overview
Carbonator
Tank
CO2Cylinder
w/Coldplate
Tap Water
32
4
Tap Water
Bag-In-Box
Syrup
Carton
BIB
Syrup Pump
NOTE:
This is a simplified schematic to
show the basic operation of the
beverage system.
Countertop
Dispenser
1
5
CO2
1800 75
SYRUP
2
CO
SYRUP
60
Dispenser
Tap Water
1
Tap Water
3
Cylinder
2
CO
2
Internal Carbonation
MD 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:
Dwg#: 5010301-0
Carbonator Tank
Carbonated/Non-carbonated
Beverage Manifold
12
INSTALLATION
COLD CARB BAG-IN-BOX (B-I-B) SYSTEM
Installation and Service Manual
13
1Location - Avoid placing the dispenser and/or ice
machine near heat sources such as radiators, ov-
ens, refrigeration equipment and direct sunlight.
2Clearances - Six inch (15.2 cm) clearance on all
sides of the icemaker is needed.
3Front of icemaker to be flush with front of dis-
penser- The front of the icemaker should be flush
with the front of the dispenser, as shown in the draw-
ing above. Because the icemaker is flush with the
front of the dispenser, some icemakers may over-
hang at the back of the dispenser.
4Drains - A separate drain line is required for the ice
machine, in addition to a drain line for the ice/bev-
erage dispenser.
5MD Series dispensers require an adapter kit to
install a top-mounted icemaker. Contact your lo-
cal Servend distributor for the correct adapter kit.
INSTALLATION
TOP MOUNTED ICEMAKER REQUIREMENTS
NOTE: For full information about icemaker installation, including plumbing lines connections and
electrical requirements, see the icemaker installation manual.
ICE FLOW RESTRICTOR
Ice Flow Restrictor
For all Servend MD/MDH Series dispensers an ice flow
restrictor is available. This ice flow restrictor decreases
the amount of ice allowed to enter the ice chute by block-
ing a small area at the entrance of the dispenser chute.
This in turn restricts the flow of ice that is dispensed in to
your cup.
Please refer to the instructions included in kit #5013822
for more information on how to install
.
6" (15.2 cm)
clearance
for cuber
cuber
3
4
3
2
4
6"
(15.2 cm) 6"
(15.2 cm)
6" (15.2 cm)
6" (15.2 cm)
1
5
14
Part Number Description
5029518 ........................ Baffle Kit 30”
5029517 ........................ Baffle Kit 22”
When installing a Manitowoc™ “S” series Ice Machine on a Servend MD-series 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 from Servend. One kit is for the
30" wide “S” series ice machine, and the other kit is for the 22" wide “S” series ice machine.
These two Kits are available through your local Manitowoc Distributor. List prices may be subject to change without
notification. Please call your local parts distributor for current pricing before ordering.
Ice Maker Baffle Installation:
1. Remove both front panels.
2. Examine the ice machine to see if the machine has
four screws on the lower front plastic panels.
3. If there are screws, remove them from the counter-
sunk 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.
INSTALLATION
BAFFLE FOR MANITOWOC™ CUBERS
BAFFLE FOR "Q" SERIES ICE MACHINES
MANUAL FILL LID FOR DISPENSERS WITH A CUBER
If you are top mounting your MD Series dispenser with a
cuber, you will require a lid for the manual fill area at the
top, front of the dispenser.
If you ordered a Servend dispenser and a cuber at the
same time, the manual fill lid was included with the unit.
The manual fill lid can be ordered from your local Serv-
end distributor.
1. Position baffle on top of water well with tab on the
front and the other tab inside the water well.
2. Mount the baffle on the left side of the ice maker
using the hole and screw provided.
Installation and Service Manual
15
INSTALLATION
PLUMBING DIAGRAM LOCATION
The plumbing diagram is printed on a white vinyl label, usually located above the inlet tubes for syrup and later. 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.
On internal carb units the water supply must first be connected to the carbonator pump before plumbing to connection
“A” shown on plumbing diagram. The carbonator pump deck must be within six feet of the dispenser for optimum
performance. (See BIB installation diagram for system pressure settings). 0
PLUMBING
DIAGRAM
P
P
U
U
S
S
H
H
F
F
O
O
R
R
I
I
C
C
E
E
4
Plumbing Diagram
16
INSTALLATION
MD-150 6 VALVE PLUMBING DIAGRAM
MD-150 6 VALVE FLEX MANIFOLD
Installation and Service Manual
17
INSTALLATION
MD-175 8 VALVE PLUMBING DIAGRAM
MD-175 8 VALVE FLEX MANIFOLD
18
INSTALLATION
MD-200/250 8 VALVE PLUMBING DIAGRAM
MD-200/250 8 VALVE FLEX MANIFOLD
Installation and Service Manual
19
INSTALLATION
MD-200/250 10 VALVE PLUMBING DIAGRAM
MD-200/250 10 VALVE FLEX MANIFOLD
20
INSTALLATION
MD-302 12 VALVE PLUMBING DIAGRAM
LEFT RIGHT
MD-302 12 VALVE FLEX MANIFOLD
(1 PER SIDE)
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