Manitowoc Multiplex Ms-8 Service Manual Download Page 1

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January 2012

Printed in
The United States of America

Blended Ice Machine

Multiplex Models MS-8

Service Manual

Manufactured exclusively for
McDonald’s® By:

Manitowoc Foodservice
Tel. (888) 436-5442
Tel. (989) 773-7981
Fax (888) 779-2040

MS-8-1H, MS-8-1LH

MS-8-EH, MS-8-ELH

MS-8-AH, MS-8-ALH

MS-8-BH, MS-8-BLH

MS-8-CH, MS-8-CLH

MS-8-FH, MS-8-FLH

MS000A01, MS000A02

MS000A03, MS000A04

MS000A05, MS000A06

Blended Ice Machine

Multiplex

Summary of Contents for Multiplex Ms-8

Page 1: ...nual Manufactured exclusively for McDonald s By Manitowoc Foodservice Tel 888 436 5442 Tel 989 773 7981 Fax 888 779 2040 MS 8 1H MS 8 1LH MS 8 EH MS 8 ELH MS 8 AH MS 8 ALH MS 8 BH MS 8 BLH MS 8 CH MS 8 CLH MS 8 FH MS 8 FLH MS000A01 MS000A02 MS000A03 MS000A04 MS000A05 MS000A06 Blended Ice Machine Multiplex ...

Page 2: ...THIS APPLIANCE IS NOT INTENDED FOR USE BY PERSONS WHO LACK EXPERIENCE OR KNOWLEDGE UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTION CONCERNING USE OF THE APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR SAFETY WARNING THIS APPLIANCE IS NOT TO BE PLAYED WITH WARNING DO NOT CLEAN WITH WATER JET WARNING DO NOT USE ELECTRICAL APPLIANCES INSIDE THE FOOD STORAGE COMPARTMENT OF THIS APPLIANCE CAUTION Ob...

Page 3: ...Drink Energized Component Flowchart 21 Rinsing Energized Flowchart 24 Manager s Menu Screen 26 Centering the Scale 26 Troubleshooting Display Assembly 27 Blender And Scale 28 Cooling 29 Cabinet Product Thermistors 29 Ice Shaver Ice Bin Cover 30 Product Dispensing 31 Rinsing And Water Dispensing 32 Refrigeration Operation 33 Will Not Run Flowchart 34 Weight Beam Diagnostic Flowchart 36 Ice Shaver W...

Page 4: ...47 Assembly Replacement Parts List Base 48 Top 49 Duct Outlet 50 Door 50 Miscellaneous 50 Top Valve Pump 51 Lower Pump 51 VitaMix Assembly 52 Condensing Unit 53 Evaporator Coil 53 Refrigerant Recovery Evacuation Charging Procedures Charging Procedures 54 System Contamination Cleanup 54 Mild System Contamination Cleanup Procedure 55 Severe System Contamination Cleanup Procedure 55 R 290 Service Pro...

Page 5: ...der normal use and service for three 3 years from the date of original installation The compressor is covered by an additional two 2 year part only warranty beginning on the date of the original installation LABOR Labor required to repair or replace defective components is covered for three 3 years from the date of original installation EXCLUSIONS The following items are not included in the Blende...

Page 6: ...lso include operator procedures for cleaning sanitizing checking inventory replacing product bags selecting drink sizes and manually preparing drinks Managers and technicians have access to menu software updates diagnostics and other service screens Part Description Number Cleaning Kit 000 BIC 0008 Cleaning Pitcher 3239631 Cup Dispenser 1706175 Gasket Door 1706208 Gasket Whipped Cream Door 1706209...

Page 7: ...ormation overrides information listed on this page Model Numbers Voltage Cycle Total Amps Breaker Size MS 8 1H MS 8 1LH MS 8 FH MS 8 FLH MS000A05 MS000A06 115 60 1 16 0 20A MS 8 BH MS 8 BLH 230 240 60 1 9 8 16A MS 8 AH MS 8 ALH MS 8 CH MS 8 CLH MS 8 EH MS 8 ELH MS000A01 MS000A02 MS000A03 MS000A04 230 240 50 1 9 8 16A GROUNDING INSTRUCTIONS Warning The machine must be grounded in accordance with na...

Page 8: ... in direct sunlight and must be protected from weather Water temperature min max 40 F 110 F 4 C 43 C Water pressure min max 20 psi 40 psi 138kPa 276kPa Always use the water supply line supplied when installing this appliance Never reuse an old supply line Main supply CO2 pressure to Blended Ice Machine regulator min max 55 psi 150 psi 379kPa 1034kPa Warning Carbon Dioxide CO2 displaces oxygen Expo...

Page 9: ... industrial cleaners If cleaners containing chlorides are used be sure to rinse repeatedly and dry thoroughly Routine cleaning of stainless steel can be done with soap and water Extreme stains or grease should be cleaned with a non abrasive cleaner and plastic scrub pad Always rub with the grain of the steel There are stainless steel cleaners available which can restore and preserve the finish of ...

Page 10: ...propriate Material Safety Data Sheet s MSDS Tools and supplies Bucket clean and sanitized towels Scoop Bucket soiled towels KAY 5 Sanitizer solution HCS KAY Beverage Equipment Cleaner No Scratch Pad Procedure 1 Cycle touch pad to cleaning On the Menu Screen press Cleaning then Daily Cleaning 2 Gather items shown 3 Empty ice hopper Remove ice hopper lid Use an ice scoop and an empty bucket to remov...

Page 11: ...on and a sanitized towel to sanitize x Above and around the ice chute x Inside the ice chute KAY 5 Sanitizer 8 Clean pitcher pad and drain area x Use coffee pot of hot water from the back sink to rinse drain area and drain x Spray the drain area with Sanitizer solution and wipe with a clean sanitize towel x Clean top and sides of the pad KAY 5 Sanitizer 9 Re install all components Blend pitchers i...

Page 12: ...2 KAY 5 Sanitizer HCS packet Bucket with rinse water Bio Shield Dispenser Bio Shield Tower Drain Cleaner Bucket clean sanitizer soaked towels Bucket soiled towels KAY 5 Sanitizer Solution Scoop Empty bucket KAY Beverage Equipment Cleaner Taylor Lube HP or Carpigiani Carpilube Procedure 1 Cycle touch pad to cleaning On the Menu screen press Cleaning then Weekly Cleaning 2 Gather items shown 3 Empty...

Page 13: ...aning screen will appear 10 Remove tubes from the APSC bucket and place into the warm water RINSE bucket 11 Press Next The message window will display Rinse of Strawberry Banana Line then change to the next flavor until all lines have been rinsed If water runs low press Pause refill the bucket with warm water and press Resume After the last line is cleaned the next cleaning screen will appear 12 R...

Page 14: ... APSC 25 Pour in SolidSense APSC Slowly pour the SolidSense APSC into the ice hopper in a circular motion as close to and as high up the inside walls as possible without splashing solution outside the unit 26 Use clean sanitizer soaked towel to clean inside of hopper Use caution when wiping near the shaver blade 27 Rinse ice hopper with clean water Fill a blend pitcher with clean water Slowly pour...

Page 15: ... area x Use coffee pot of hot water from the back sink to rinse drain area and drain x Spray the drain area with Sanitizer solution and wipe with a clean sanitize towel x Clean top and sides of the pad KAY 5 Sanitizer 34 Re install all components Blend pitchers scale overflow tray ice hopper lid syrup rails drip pan and splash guard 35 Clean with APSC the interior of the blended ice machine with a...

Page 16: ... turning the knob clockwise Shake the dispenser to dissolve the cleaner Drain Cleaner 42 Carefully purge a small amount of solution from the dispenser into the back sink or utility sink This helps prevent sputtering of solution and possible splashing back onto clothing or eyes 43 Carefully spray the solution into the rinser sink drain hole 44 Open the pressure relief knob again by turning the knob...

Page 17: ...orrect press return and reselect Size and Option Touch Screen 3 Select drink options Select Return to view the previous screen The yogurt button toggles between including and leaving out the yogurt Select the Multiple button if you want to make multiple drinks of the same flavor Select drink size s NOTE A green box will highlight the selections 4 The machine will add the proper amount of ingredien...

Page 18: ...side of the product bin with a clean sanitize towel 6 Place bag in product bin with spout down Position product bag with the spout facing down Position the rear groove of the spout on the product bag into the front slot of the product bin Make sure it s properly snapped into place 7 Open the cap on the product bag and tear it off 8 Return product bin to its position in cabinet 9 Press OK on touchs...

Page 19: ... Shims STM514 2 Mounting Screws FST527 NOTE Mounting Screws may be a different length than the screws that you currently use Replace the old blade with the blade from the kit along with the same combination of shims that existed when you removed the old blade You can reuse the old shims or use the shims provided in the kit as long as the combination is the same as the original Be sure to mount the...

Page 20: ... Evap cond fans IO brd LCD powers Duct thermistor indicates temp Warm alarm Ice bin sw indicates position L1 Open alarm 3 minute delay Cabinet thermistor indicates cabinet temp Main Control board energizes comp cond fan motor relay on I O board IO brd energizes compressor Thermistor indicates set point temp attained De energizes comp 3 min delay At set point Comp off W a r m Above set point 23 ...

Page 21: ...ump Verify weight within max time period De energize solenoid valve product pump Verify weight within time period When selected energize yogurt solenoid valve and product pump Verify weight within max time period De energize solenoid valve product pump Energize shaver motor Energize blender motor for predetermined amount of time based on selections Making a Drink Energized Component Flow Chart 2 ...

Page 22: ...ONTINUED i n c o r r e c t Reselect drink 3 Energizes solenoid valve and product pump De energize solenoid valve and product pump When selected energize yogurt solenoid valve and product pump De energize solenoid valve product pump Size and option screen ...

Page 23: ... weight within time period When selected energize yogurt solenoid valve and product pump Verify weight within max time period De energize solenoid valve product pump Energize shaver motor Energize blender motor for predetermined amount of time based on selections Making a Drink Energized Component Flow Chart Errors and Corrections Reselect drink type i n c o r r e c t Adjust banana weight to 3 oz ...

Page 24: ...24 1 12 Rinsing Energized Flow Chart Control board energizes water inlet valve coil Water valve opens Valve de energizes after predetermined time period Try a different pitcher ...

Page 25: ...oard energizes water inlet valve coil Water valve opens Valve de energizes after predetermined time period Switch doesn t close Try a different pitcher Replace magnet or pitcher Check for power at relay board Replace relay brd no no no Manual rinse button operates n o Test reed switch resistance y e s Replace wire no Check water supply ...

Page 26: ...ttings Service Intervals Return Return Reset functions password is 93078 The screen features Reset Inventory Reset Hardware History Reset Date of Manufacture Reset System Parameters Reset Born on Date Reset Cleaning Timer Service password is 89531 The screen features Update System Parameters Scale Calibration Periodic Maintenance Fault and Diagnostic History Input Output Test Smart Equipment Commi...

Page 27: ...lay Assembly Replace the Display Assembly The Display turns on and does not respond to touches Touch screen Display Bad Disconnected Touch screen Display not seated in enclosure correctly Something is activating the touch screen 1 Ensure that there is nothing on or resting against the display Note Issues with the touch response require that the Display Assembly is returned for service 2 Replace th...

Page 28: ...ng obstructing the operation of the blender mechanism 5 From the startup screen select Menu à Managers Menu 6 Enter code 89531 7 Select Test I O 8 Select Blender Ramp 9 If the blender does not respond replace the blender assembly Scale Reading Wrong Blend Container Not in Place Check Blend Container and Pad Valid Container weight exceeded Scale out of calibration not calibrated 1 From the startup ...

Page 29: ...inet door and observe the duct fan upper right at the rear of the cabinet 4 Verify that the duct fan is not obstructed 5 If the duct fan is OFF check the connections from the duct fan to the I O Board J8 6 If the connections are good replace the duct fan Cabinet Product Thermistors Symptom Potential Cause Remedy Checks High Low Product or Cabinet temperature reading Product Sensor Open Failure Pro...

Page 30: ...in lid not in place Secure ice bin cover to restore operation Ice Bin Switch Bad Stuck 1 Secure the Ice bin Lid 2 If the lid is secure and the error does not go away remove the lid and attempt to activate the SW using a screwdriver or a flat dull knife 3 While attempting to activate the switch listen and feel for the switch activation 4 If the mechanical operation of the switch is bad Replace the ...

Page 31: ...ce the regulator Solenoid Valve Bad or wiring disconnected bad I O Board 1 From the startup screen select Menu à Managers Menu 2 Enter code 89531 3 Select Test I O 4 While listening inside the cabinet turn the suspect valve ON The valve will make an audible click when activated 5 If the valve does not activate ensure that the wiring to the valve is correct 6 Check the relay operation on the I O bo...

Page 32: ...service screen turn on the Rinse Solenoid 5 If no water ensure that LED4 of the I O board is ON 6 If LED is ON check cable connection to rinse valve 7 If the connections are good replace the valve I O Board 1 From the startup screen select Menu à Managers Menu 2 Enter code 89531 3 Select Test I O 4 With the Hall Effect switch ON blend container present turn on the Rinse Solenoid 5 Verify that LED4...

Page 33: ...or fan cycles off only during cleaning cycle Operation in the Clean Sanitize cycle During the weekly cleaning sanitize cycle the evaporator fan motor relay and the condenser fan motor compressor relay are de energized The relays cannot energize until the clean sanitize cycle is complete Upon completion of the clean sanitize cycle the relays will energize provided the conditions listed in normal op...

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Page 38: ...tage from 120 or 230 VAC to 24 VDC SPECIFICATIONS Steps down voltage from 120 60 1 VAC to 24 VAC 75 VA 230 50 60 1 VAC to 24 VAC 75 VA Normal Room Temperature or Recently De energized Resistance Primary 120 VDC 6 to 8 ohms 230 VDC 3 to 5 ohms Secondary 120 VDC 3 to 5 ohms 230 VDC 1 to 3 ohms CHECK PROCEDURE Use an ohmmeter to check operation Deduct meter and lead resistance from final readings sho...

Page 39: ...nd closes relays based on the signals it receives from the microprocessor control board SPECIFICATIONS 24 VAC input CHECK PROCEDURE Refer to appropriate flowchart for the problem you are encountering IO board diagnostics are covered by a process of elimination in the individual flow charts 1 Reboot machine by moving toggle switch off on 2 If the IO board has lights energized go to step 7 3 Verify ...

Page 40: ...touchscreen power connector is connected to control board Touch screen is white Verify strip connector is secure and connected by removing and reinserting connector Lift lock Remove and evenly reinsert strip into connector Depress lock to secure strip Inspect strip to verify even placement Replace touchscreen and control board assembly Cabinet Temperature Thermistor FUNCTION Supplies input to cont...

Page 41: ...RE RESISTANCE CHART This chart is used for the product chase and temperature control thermistors As the temperature rises at the thermistor block the resistance drops If the ohmmeter reads OL check the scale setting on the meter before assuming the thermistor is bad Temperature of Thermistor Nominal Resistance C F K Ohms x 1000 0 3 32 37 32 65 28 05 3 6 37 43 28 05 24 17 6 9 43 48 24 17 20 88 9 12...

Page 42: ...r Resistance Motor is good Open OL Replace motor Ice Bin Lid Microswitch FUNCTION Prevents operation of machine with ice bin lid removed Two micro switches are used one micro switch signals the control board to initiate a failure screen and the second micro switch prevents the shaver motor from running SPECIFICATIONS Shaver Motor Switch Inner switch Control Board Input Switch Outer switch Normally...

Page 43: ...haver wheel to supply shaved ice SPECIFICATIONS Shaver motor has a circuit breaker and diode bridge block Both components are located in the IO board compartment near the shaver motor Volts Direct Current VDC Normal Room Temperature Resistance 120 VDC 30 ohms or less 230 VDC 15 ohms or less CHECK PROCEDURE NOTE Use an multimeter to check operation Deduct meter and lead resistance from final readin...

Page 44: ... NOTE Use an ohmmeter to check operation Deduct meter and lead resistance from final readings short leads together to determine deduction value 1 Reboot machine by moving toggle switch off on 2 Test run manual from touchscreen 3 Inspect for correct wiring 4 Isolate by disconnecting the wiring connectors 5 Check motor winding resistance through terminals with an ohm meter Within resistance range Mo...

Page 45: ...ot move the compressor is seized Replace the compressor If the pressures move the compressor is turning slowly and is not seized Check the capacitors and relay Compressor Drawing High Amps The continuous amperage draw on start up should not be near the maximum fuse size indicated on the serial tag DIAGNOSING CAPACITORS If the compressor attempts to start or hums and trips the overload protector ch...

Page 46: ...Pressure High Checklist Improper Installation Refer to Installation Visual Inspection Checklist Discharge Pressure Discharge pressure is too high and is affecting low side Improper Refrigerant Charge Overcharged also see Discharge Pressure High Checklist Wrong type of refrigerant Components Compressor flooding Defective compressor Other Non Multiplex components in system Suction Pressure Low Check...

Page 47: ...ter charging Unit is critically charged Purge system with nitrogen while brazing to prevent build up of copper oxide in the refrigeration system Manifold gauges must be removed properly to ensure that no refrigerant contamination or loss occurs A quick disconnect is required for the high side connection unless high side valve has shut off Recovery Evacuation 1 Place the rocker switch in the OFF po...

Page 48: ... Pump Top 17 3547808 Fitting Product to Pump 18 372 CDY 0003 Shelf Product Stop 19 000 CDS 0006 Assembly Lower Pump LH 9324096 Clamp Oetiker Hose Product 2162730 Fan Tube Axial 3547769 Tube 1 4 Polyethylene 1702023 Tubing 9 16OD x 5 16ID Clear 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Model Specific Parts Model Key 7 Assembly Cond Unit Smoothie Key 20 Assembly Evap Coil Kit stickers MS 8 ...

Page 49: ... 9324097 Clamp Oetiker 1 2 9324098 Clamp Oetiker Hose Drain 9324099 Clamp Oetiker Hose Rinse 9324100 Clamp Oetiker Hose Vitamix 3547832 Coupling 1 4 Stem x 1 4 Barb 3547779 Coupling 1 4 Stem x 5 16 Barb 1706175 Cup Dispenser 3237378 Fitting 1 4 PTC WYE 3547788 Fitting 3 4 Hose to 3 8 PTC 2195313 Fuse 5A HT Ceramic I O Board 1706183 Gasket Nozzle Block 3547765 Nozzle Spray Rinse Area 9321035 Nut 0 ...

Page 50: ...0 S Splash Shield Assembly Key Part Number Common To All Models Description 1 1706208 Gasket Dr Smoothie 2 1706209 Gasket Door Access 3 000 187 0016 Door Whip Cream 4 3237516 Hinge Concealed Cart 65INLBS 5 3234226 Bracket Hinge Bottom RH 3234227 Bracket Hinge Bottom LH 6 3234228 Bracket Pivot Top RH 3234229 Bracket Pivot Top LH RF000066 Hinge Kit Model Specific Parts Model Key 8 Valve Dispense Oul...

Page 51: ...t Double Valve 1708546 Scale Overflow Tray Assembly 3235029 Tool Scale Calibration 1702019 Tubing 1 2id x5 8od PVC Clear 2ft length Top Valve Pump Assembly Lower Pump Assembly Key Part Number Common To All Models Description 1 380 CD5 0003 Cover Evap Smoothie 2 3239655 Pump Flojet NSF 3 3239657 Solenoid Valve Manifold Mac Key Part Number Common To All Models Description 1 3239655 Pump Flojet NSF 2...

Page 52: ...39681 VMP00145 MS000A03 MS000A04 3239681 VMP00145 MS000A05 MS000A06 VMP00125 3239681 VMP00112 Parts Common To All Models Key Part Number Description 1 VMP00133 Ice Bin Lid 2 VMP00106 PBS Ice Shelf 3 VMP00121 Power Cord 4 VMP00122 Control Board 5 VMP00124 Drive Belt Blender 6 VMP00130 PBS Container Pad 7 VMP00153 Container Base Plate 9 VMP00134 Safety Interlock Push Rod 10 VMP00107 Paddle Nut VMP00...

Page 53: ...1 3517382 Coil Evap Smoothie 3 372 A9Y 0002 Bracket Fan Evap 4 3517383 Blade Fan 4 5 CW 5 2160022 Guard Fan 4 7 6 019 CD1 0000 Body Evap Coil Model Specific Parts Model Key 1 Comp Cover Small Danfoss Key 2 Comp Relay Ovld TF4CLX Key 3 Capacitor Start 280MFD Key 5 Motor Fan Key 10 Compressor Tubing Cap 0 044ID x 144 MS 8 1H 3516443 3516446 2194787 2162717 3526997 0074057 MS 8 AH 3516460 3516452 351...

Page 54: ...uge set Remove the hoses from the Blended Ice Machine and install the caps System Contamination Cleanup General This section describes the basic requirements for restoring contaminated systems to reliable service Important Multiplex assumes no responsibility for the use of contaminated refrigerant Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing...

Page 55: ... the vacuum pump oil Pull vacuum to 500 microns Run the vacuum pump for 1 2 hour NOTE You may perform a pressure test as a preliminary leak check You should use an electronic leak detector after system charging to be sure there are no leaks 1 Charge the system with the proper refrigerant to the nameplate charge 2 Operate the Blended Ice Machine Severe System Contamination Cleanup Procedure 1 Remov...

Page 56: ... Drier DML 032S 1 4 64cm end connection is the recommended OEM field replacement drier Driers are covered as a warranty part The drier must be replaced any time the system is opened for repairs Total System Refrigerant Charge This information is for reference only Refer to the Blended Ice Machine model serial number tag to verify the system charge Serial plate information overrides information lis...

Page 57: ...1 12 57 Wiring Diagram MS 8 1H MS 8 1LH MS 8 FH MS 8 FLH MS000A05 MS000A06 Specifications Wiring Diagrams Schematics ...

Page 58: ...58 1 12 Wiring Diagram MS 8 AH MS 8 ALH MS 8 BH MS 8 BLH MS 8 CH MS 8 CLH MS 8 EH MS 8 ELH MS000A01 MS000A02 MS000A03 MS000A04 ...

Page 59: ...1 12 59 Blender Scale Schematic Shaver Schematic ...

Page 60: ...llel with the edge of the lock Lift lock up to 90 to remove and reinsert strip connector 2 Backup Battery Verify cable from relay board is connected and locked in place 3 LCD Power Connector Verify power connector for LCD touchscreen is securely connected 4 MCB Connector Verify strip connector is secure and connected 2 1 3 4 ...

Page 61: ...asket 1 Replace Shaver Blender Belt 1 Replace Water or CO2 Regulator 1 Replace Water Solenoid Valve 1 Locate Repair a Refrigerant Leak 2 Replace Advanced Bearing Assembly 2 Replace Blender Motor 2 Replace CO2 Solenoid 2 Replace Evaporator Fan Motor and Blade 2 Replace Product Pump 2 Replace Safety Switch Rectifier Assembly 2 Replace Shaver Motor 2 Replace Temperature Probes 2 Replace the Dispense ...

Page 62: ...62 1 12 Notes ...

Page 63: ...1 12 63 Notes ...

Page 64: ...ial number available at the time of your call 888 436 5442 Model ____________________ S N ___________________ Installation Date ____________ For a list of Manitowoc STAR authorized parts depots visit our website at www manitowocfsg com Multiplex Multiplex 980 S Isabella Rd Mt Pleasant MI 48858 U S A 888 436 5442 or 989 773 7981 Fax 888 779 2040 DMMcDBIM8Service 12 11 ...

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