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- Installation, Use & Care Manual
Servend MDH-302 Series Installation, Use & Care Manual - Section 2
Part Number 020003999 6/14
2-1
Section 2
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 services.
Dimensions
* Applies to icepic™ models also (MDH-302 CI & MDH-402 CI)
Important
Failure to follow these installation guidelines may
affect warranty coverage.
MODEL
A
B
C
D
E
MDH-302*
42.75"
(108.59 cm)
30.50"
(77.47 cm)
22.50"
(57.15 cm)
38.75"
(98.43 cm)
20.50"
(52.07 cm)
MDH-402*
60.00"
(152.40 cm)
30.50"
(77.47 cm)
22.50"
(57.15 cm)
56.50"
(143.51 cm)
21.25"
(53.98 cm)
Coldplate Inlets
3/4" NPT
Fitting
Drain Pan
Front edge of drain pan
Coldplate Inlets
3/4" NPT
Fitting
Summary of MDH-302 Series
Page 1
Installation, use & care manual this manual is updated as new information and models are released. Visit our website for the latest manual. Www.Manitowocfsg.Com leader in ice & beverage dispensers mdh-302/402 & icepic ™ / selectable ice series ice & beverage dispensers part number 020003999 6/14.
Page 2
We reserve the right to make product improvements at any time. Specifications and design are subject to change without notice. Safety notices 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 a...
Page 3: Table of Contents
Part number 020003999 6/14 1 table of contents section 1 general information read this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 unit inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
Table of contents (continued) 2 part number 020003999 6/14 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 . . . . . . . . . ...
Page 5
Table of contents (continued) part number 020003999 6/14 3 preventive maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 disas...
Page 6
Table of contents (continued) 4 part number 020003999 6/14.
Page 7: Section 1
Part number 020003999 6/14 1-1 section 1 general information read this manual manitowoc beverage equipment (mbe) developed this manual as a reference guide for the owner/operator and installer of this equipment. Please read this manual before installation or operation of the machine. A qualified ser...
Page 8
General information section 1 1-2 part number 020003999 6/14 legs legs are optional equipment with most mbe dispensers. Standard legs are 4" (10.2 cm) tall stainless steel legs. If an ice machine is installed on top of the dispenser, legs must not be installed. We do not recommend using legs when an...
Page 9: Section 2
Part number 020003999 6/14 2-1 section 2 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 services. Dimensions * applies...
Page 10
Installation instructions section 2 2-2 part number 020003999 6/14 mdh-302 & 402 footprint minimum area for cutout maximum area for cutout d c b a * applies to icepic™ models also (mdh-302 ci & mdh-402 ci) model maximum minimum a b c d mdh-302* 38.75" (98.43 cm) 20.50" (52.07 cm) 3.00" (7.62 cm) 32....
Page 11
Section 2 installation instructions part number 020003999 6/14 2-3 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 (...
Page 12
Installation instructions section 2 2-4 part number 020003999 6/14 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: b-i-b system also: post mix system: figal sy...
Page 13
Section 2 installation instructions part number 020003999 6/14 2-5 double check also consider the location of the following items before installation additional checks for top mounted ice machine installations for full information about ice machine installation, including plumbing line connections a...
Page 14
Installation instructions section 2 2-6 part number 020003999 6/14 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, remov...
Page 15
Section 2 installation instructions part number 020003999 6/14 2-7 electrical general 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 ...
Page 16
Installation instructions section 2 2-8 part number 020003999 6/14 pump deck wiring 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 ...
Page 17
Section 2 installation instructions part number 020003999 6/14 2-9 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 disp...
Page 18
Installation instructions section 2 2-10 part number 020003999 6/14 mdh-302 12 valve plumbing diagram mdh-302 12 valve flex manifold (1 per side) 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 unit...
Page 19
Section 2 installation instructions part number 020003999 6/14 2-11 mdh-402 16 valve plumbing diagrams mdh-402 16 valve flex manifold (1 per side) 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 li...
Page 20
Installation instructions section 2 2-12 part number 020003999 6/14 mdh-402 20 valve plumbing diagram mdh-402 20 valve flex manifold (1 per side) cold carb mdh-402 20 valve servend recommended plumbing 3-1-2-1-3 flex left to right 3-1-2-1-3 flex left to right manifold carbonator coldplate manifold c...
Page 21
Section 2 installation instructions part number 020003999 6/14 2-13 co 2 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 tub...
Page 22
Installation instructions section 2 2-14 part number 020003999 6/14 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. Cap...
Page 23
Section 2 installation instructions part number 020003999 6/14 2-15 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 a...
Page 24
Installation instructions section 2 2-16 part number 020003999 6/14 ada key pad matrix 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 co...
Page 25: Section 3
Part number 020003999 6/14 3-1 section 3 operation general system overview typical internal carbonation beverage dispensing system typical external carbonation (ambient) beverage dispensing system co 2 1800 75 syrup 2 co syrup 60 dispenser tap water 1 tap water 3 cylinder 2 co 2 internal carbonation...
Page 26
Operation section 3 3-2 part number 020003999 6/14 mdh-302 cold carbonation system typical mdh-302 cold carbonation beverage dispensing system plain water to manifold (non-insulated) cold water to carbonator tank (insulated) carbonated water to manifold (insulated) plain water to manifold (non-insul...
Page 27
Section 3 operation part number 020003999 6/14 3-3 mdh-402 cold carbonation system typical mdh-402 cold carbonation beverage dispensing system 5010863-2 plain water to manifold (non-insulated) plain water to manifold (non-insulated) mdh-402 cold water to carbonator tank (insulated) cold water to car...
Page 28
Operation section 3 3-4 part number 020003999 6/14 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 bef...
Page 29
Section 3 operation part number 020003999 6/14 3-5 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 chute als...
Page 30
Operation section 3 3-6 part number 020003999 6/14 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....
Page 31
Section 3 operation part number 020003999 6/14 3-7 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 paid for. The b-i-b rack allows the b...
Page 32
Operation section 3 3-8 part number 020003999 6/14 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 r...
Page 33: Section 4
Part number 020003999 6/14 4-1 section 4 maintenance cleaning daily cleaning all cleaning must meet your local health department regulations. The following cleaning instructions are provided as a guide. Clean the exterior and drain pan: 1. Turn off the key switch located on either right or left side...
Page 34
Maintenance section 4 4-2 part number 020003999 6/14 monthly cleaning 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....
Page 35
Section 4 maintenance part number 020003999 6/14 4-3 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....
Page 36
Maintenance section 4 4-4 part number 020003999 6/14 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 rig...
Page 37
Section 4 maintenance part number 020003999 6/14 4-5 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 ...
Page 38
Maintenance section 4 4-6 part number 020003999 6/14 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. M...
Page 39
Section 4 maintenance part number 020003999 6/14 4-7 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...
Page 40
Maintenance section 4 4-8 part number 020003999 6/14 6. Reattach the decorative ice chute by inserting the chute rod through the chute, housing mount and 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 microsw...
Page 41
Section 4 maintenance part number 020003999 6/14 4-9 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 mo...
Page 42
Maintenance section 4 4-10 part number 020003999 6/14 sanitizing beverage system cleaning 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 thr...
Page 43
Section 4 maintenance part number 020003999 6/14 4-11 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 s...
Page 44
Maintenance section 4 4-12 part number 020003999 6/14 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 me...
Page 45: Section 5
Part number 020003999 6/14 5-1 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 d...
Page 46
Before calling for service section 5 5-2 part number 020003999 6/14 icepic™ troubleshooting problem possible cause to correct dispenser does not dispense crushed ice nothing is heard no power check power source and power cord. Loose wire in electrical system check wiring. Dispense switch faulty repl...
Page 47
Section 5 before calling for service part number 020003999 6/14 5-3 pump troubleshooting selectable ice troubleshooting problem possible cause corrective action pump motor does not shut off problem with probe or probe harness pump motor intermittent problem with probe or probe harness pump motor doe...
Page 48
Before calling for service section 5 5-4 part number 020003999 6/14 drink troubleshooting condition investigation check correction water only dispensing no pressure regulator(s) out of adjustment check/adjust regulator(s). Out of co 2 install fresh tank. Defective regulator(s) check/repair/replace r...
Page 49
Section 5 before calling for service part number 020003999 6/14 5-5 liquid level control troubleshooting end start remove red and black wires from llc. Is pump motor operation intermittent ? Does pump motor come on? Black and/or red probe shorted. Remove probes, straighten or replace if necessary. S...
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Before calling for service section 5 5-6 part number 020003999 6/14 this page intentionally left blank.
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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 © 2014 manitowoc continuing product improvements may necessitate change of specifications without notice. Part number 020003999 6/14.