MDT5N25 - Scotsman Ice Systems
Contents
1. Unit off due to water temperature too high Thermistor will shut down unit at temperatures over 110 F Unit operates no ice is vended Check for ice in the bin If no ice check that ice maker can make ice Check that machine cannot keep up with needs Check for jam up of ice in dispense chute Pull chute down and allow ice to fall out Return chute to its normal place If there is ice check that the bin vane rotates if not Check for power to the bin drive motor if none check condition of Touch Free ice sensor If there is power to the bin drive motor but the vane does not turn Disconnect electrical power remove all ice check mechanical condition of ice vane Replace if broken If ice vane is mechanically sound check bin drive replace if broken Compressor on auger motor is off Auger motor windings open Replace auger motor Auger motor relay does not make Replace circuit board Contactor stuck Replace contactor Compressor does not operate Off due to high pressure control open Check condenser fan motor fan blade or water supply on water cooled Contactor coil is open Replace contactor Contactor contacts do not make Replace contactor Start capacitor failed Replace start capacitor Potential relay failed Replace relay Compressor windings open Replace compressor Compressor locked Replace compr2. Scotsman Installation and User s Manual for Ice Maker Dispenser Models MD T5N25 and MDT5N40 MDT5N25 amp MDT5N40 User Manual INTRODUCTION To the owner or user This manual is intended to The ice dispensing section is a seamless plastic provide you and the maintenance or service storage bin with a stainless steel rotating vane to technician with the information needed to install sweep the ice into the dispensing chute start up clean and maintain this ice maker dispenser The machine is a combination nugget ice maker and countertop dispenser with the option of wall mounting Table of Contents FOR THE INSTALLER Specifications fe e e nni Page 2 FOR THE INSTALLER Environmental Limitations 000 Page 3 FOR THE INSTALLER aia w a a E I a E I I RR e a a a a a o a Page 4 FOR THE INSTALLER Wall Mount Kit cc a a a a a a a a a a a a a a Page 5 FOR THE PLUMBER s ss sos aoao oaoa a a a a a a a a a a a a a a a a a a a a a a a Page 6 FOR THE ELECTRICIAN PR RR RR RR I I a Page T FOR THE INSTALLER Final Check List amp Start Ups na eee ooo ee oe eh sai Page 8 OPERATION Ice Vending fe e e RR PR Page 9 DISPENSE AREA SANITATION fl e n Page 10 CLEANING and SANITIZING fe e O O O E a a a O a a e Page 11 MAINTENANCE AND CLEANING fl e n Page 12 SERVICE DIAGNOSIS aoa a a a a a a O a a a a a a I e g a e r a a a a a I I a I a a a a I Page 13 SERVICE DIAGNOSIS Circuit Board s a a e Page 14 Note this symbol when it a
3. A water pressure to all lines must always be above i x 20 psig and below 80 psig Drains Air Cooled Models There is one 3 4 FPT drain WATER INLET i at the back of the cabinet the drain line is of the SHUT OFF gravity type and 1 4 inch per foot fall is an VALVE acceptable pitch for the drain tubing There should be a vent at the highest point of the drain line and Ed the ideal drain receptacle would be a trapped and VENTED vented floor drain Use only 3 4 rigid tubing DRAIN TUBE Water Cooled Models In addition to the above mentioned drain a separate condenser drain must be installed Connect it to the 1 2 condenser o Se drain connection at the back of the cabinet FLOOR DRAIN WATER COOLED DETAIL Condenser WATER INLET CABINET DRAIN POTABLE WATER INLET Condenser DRAIN November 2008 Page 6 MDT5N25 amp MDT5N40 User Manual FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES The electrical power to the unit Is supplied through the junction box at the rear of the machine INDIVIDUAL CIRCUIT a FOR ICE DISPENSER Check the nameplate located on the back panel for the voltage requirements and for the minimum circuit ampacity The machine requires a solid chassis to earth ground wire The ice maker should be connected to its own electrical circuit so it is individually fused Voltage variation must remain within design limitations even under starting conditions All exte
4. Stand Installation Tip the stand on its back and install the legs return the stand to the upright position Adjust leg levelers so that the stand does not rock Counter Top or Machine Stand Installation The base of the icemaker dispenser must be sealed to the object it rests upon Food grade Silastic sealant such as Scotsman part number 19 0529 01 is recommended Place a bead of the sealant on the machine stand or counter top to match the outside edge of the cabinet base and sink SEAL THE l l UNIT TO The icemaker dispenser is heavy use of a THE mechanical hoist is recommended to lift it to the COUNTER height required to install it OR STAND The DMS machine stand has holes in the top that match up with threaded holes in the icemaker dispenser Place the cabinet onto the machine stand so that the unit is lined up with the holes Secure the ice maker dispenser to the machine stand with bolts and washers In both counter top and machine stand installations wipe off and neatly smooth any excess sealant Level the machine stand and cabinet Unpack and install the sink brackets Fit the sink assembly onto the two sink brackets and press onto the bead of sealant Wipe off and neatly smooth any excess sealant from under the sink edge Unpack and install the ice and water spouts Ice Spout Slide up and over ice outlet No fastener is required to hold it in place Water Spout Slide over stainless steel wa
5. and replace the end cap 7 Prepare the cleaning solution Mix eight ounces of Scotsman Ice Machine Scale Remover with three quarts of hot water The water should be between 90 115 degrees F Scotsman Ice Machine Scale Remover contains AWARNING acids These compounds may cause burns If swallowed DO NOT induce vomiting Give large amounts of water or milk Call Physician immediately In case of external contact flush with water Keep out of the reach of children 8 Slowly pour the cleaning solution into the water reservoir until it is full Wait 15 minutes then switch the master switch to ON 9 As the ice maker begins to use water from the reservoir continue to add more cleaning solution to maintain a full reservoir 10 After all of the cleaning solution has been added to the reservoir and the reservoir is nearly empty switch the master switch to OFF 11 After draining the reservoir as in step 6 wash and rinse the water reservoir To Sanitize Repeat steps 8 11 only use an approved sanitizing solution in place of the cleaning solution A possible sanitizing solution to use could be 1 ounce of household bleach mixed with 2 gallons of warm 95 F 115 F water 12 Remove the block from the float in the water reservoir 13 Switch the master switch to ON 14 Continue ice making for at least 15 minutes to flush out any cleaning solution Check ice for acid taste continue icemaking unt
6. or allow 2 minutes to pass for the Touch Free system to reset Splash Panel Cleaning or Touch Free Disable Switch Push and Release November 2008 Page 10 MDT5N25 amp MDT5N40 User Manual CLEANING and SANITIZING A Scotsman Ice System represents a sizable investment of time and money in any company s business In order to receive the best return for that investment it MUST receive periodic maintenance It is the USER S RESPONSIBILITY to see that the unit is properly maintained It is always preferable and less costly in the long run to avoid possible down time by keeping it clean adjusting it as needed and by replacing worn parts before they can cause failure The following is a list of recommended maintenance that will help keep the machine running with a minimum of problems Maintenance and Cleaning Sanitizing should be scheduled at a minimum of twice per year Electrical power will be ON when doing in place cleaning ICEMAKING SYSTEM In place cleaning 1 Check and clean any water treatment devices if any are installed 2 Remove screws and remove the upper front panel 3 Move the ON OFF switch to OFF 4 Remove the cover to the ice storage bin and remove the ice 5 Remove the cover to the water reservoir and block the float up 6 Drain the water reservoir and freezer assembly using the drain tube attached to the freezer water inlet Return the drain tube to its normal upright position
7. times per year A Check the bearing by eremoving the ice chute cover unscrewing the ice sweep eremoving the water shed unscrewing the breaker cover Inspect the bearing There should be plenty of grease and it should not appear watery or contaminated If the bearing needs grease inject grease into the bearing using Scotsman grease needle pn 02 3559 01 and Scotsman bearing grease cartridge pn A36808 001 Be sure to inject grease evenly and thoroughly 5 Check and tighten all bolts and screws Note In some areas the water supply to the ice maker will contain a high concentration of minerals and that will result in an evaporator and auger becoming coated with these minerals requiring a more frequent removal than twice per year If in doubt about the condition of the evaporator and auger the auger can be removed so the parts can be inspected November 2008 Page 12 MDT5N25 amp MDT5N40 User Manual SERVICE DIAGNOSIS Symptom No ice made nothing operates Possible Cause Unit off due to no power Probable Correction Restore power Unit off due to master switch in OFF position Switch master switch to ON Unit off due to low water level Check water supply filter strainer float valve Correct water supply Unit off due to ice level sensors photo electric eyes blocked Check clean ice level sensors Unit off due to scale on water level sensor Clean water level sensor
8. 9 MDT5N25W 1J same 115 60 1 Water 17 17 8 20 MDT5N25A 6J same 230 50 1 Air 24 11 5 15 MDT5N25W 6J same 230 50 1 Water 17 10 9 15 Always check the nameplate for charge info August 2010 Page 2 MDT5N25 amp MDT5N40 User Manual FOR THE INSTALLER Environmental Limitations Installation Limitations This ice system is designed to be installed indoors Service Limitations in a controlled environment Do not install in a location where the top of the Minimum Maximum machine is within 6 of a fixed ceiling Do not install 0 0 air cooled models in a location where there is less F 100 F PISO ne a than 6 clearance to the left and right of the Water Temp 40 F 100 F cabinet Water Pressure 20 PSI 80 PSI Voltage 115v 104 126 Operating the machine outside of the above limitations or outdoors is potentially damaging to the machine also it is misuse of the machine which may void the warranty Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance They meet or exceed the CEILING standards of UL and NSF CUT ARAN Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman SPACE that have been altered in any way including the ABOVE use of any part and or other components not WALL FOR specifically approved by Scotsman CUT AWAY SERVICE Scotsman reserves the right to make design N fy changes and or improvements at any ti
9. e Re ili roe p s Le Zio ie hee sets es aa E S ot tS era Fon Ea ee ini 1 si ait Si sm BIN BOTTOM re cane RAS par Pest x rie Sm eit ies eiir Do ited fhe CH mao AN ar thee Heed aws RAS stati wee bay Prc RES Ri TESS ua ig Ee Da dei slate CA A a RA perte A El n E ra LA met Parts 247 ERA j at The Touch Free System Hold or Place a Container in Front of The Touch Free Sensor amp Under The Ice or Water Spout Ice or Water Will Be Dispensed Without Touching The Dispenser Note Clear glass containers may not reflect the sensor s infrared beam and activate dispensing unless the user s hand or fingers are at the back of the container November 2008 Page 9 MDT5N25 amp MDT5N40 User Manual DISPENSE AREA SANITATION The dispense area spouts sink grill and splash panel will need periodic cleaning and maintenance 1 The ice chute may be pulled down to remove it from the ice dispenser Wash and sanitize it 2 The sink grill may be removed for washing and sanitizing 3 The sink should be flushed with hot water and wiped clean with sanitizer 4 The splash panel requires special attention to clean it e Push and release the Splash Panel Cleaning switch located to the left of the water spout This disables the Touch Free sensors so the splash panel may be cleaned without vending ice and or water eWash the splash panel and wipe with with sanitizer e Re push the clean switch
10. essor November 2008 Page 13 MDT5N25 amp MDT5N40 User Manual SERVICE DIAGNOSIS Circuit Board Be la e A tia PARE Bi 4 e E eir il i oi o i e 1 aii 2 1j eu es 21 PAT rey CASH e Explanation of Indicator Light Position On Name and Meaning of Board Light or Reset On at all times when the master switch is ON and machine is 1 Power connected to electrical power ON Normal On when ice level is low unit making ice 2 Bin Empty ON Needs Ice Normal 6 minute off delay start To prevent short cycling the Off Timer machine will not restart after any shut off except power to the 3 ON Unit cycling off board until 6 minutes have passed On when water level is low in the reservoir 4 No Water ON Trouble November 2008 Page 14 SCOTSMAN ICE SYSTEMS 775 Corporate Woods Parkway Vernon Hills IL 60061 800 533 6006 www scotsman ice com 17 3282 01
11. heck that no refrigerant lines are rubbing each other Check that the fan blade on air cooled models turns freely 5 Check that the machine is installed correctly according to the final check list Start Up 1 Go through the pre start inspection 2 Open the water hand valve observe that water enters the water reservorr fills the tube from the reservoir to the evaporator and then shuts off Check for leaks 3 Switch the master switch on The electrical start up sequence is automatic there will be a short 15 second delay before the machine starts 4 On air cooled models warm air will begin to flow from the condenser Water cooled models will begin to discharge warm water 110 F down the drain 5 The unit should soon be making ice PLUMBING BACK VIEW OF COMPLETED INSTALLATION ELECTRICAL LEVELED MACHINE STAND 6 There are no adjustments to make so replace the panels 7 Check ice dispensing by holding a container in front of the Touch Free ice sensor just below the ice delivery spout Ice should flow from the spout when a container is present and stop dispensing when the container is removed 8 Switch off the icemaker dispenser remove the top panel and the top of the ice storage bin Sanitize the interior of the ice storage bin by wiping it with a mixture of 1 ounce of household bleach to 2 gallons of water allow to air dry Replace all covers and panels Switch the icemaker dispe
12. il ice tastes sweet DO NOT USE any ice produced from the cleaning solution Be sure no ice remains in the bin 15 Remove all ice from the storage bin 16 Add warm water to the ice storage bin and thoroughly wash and rinse all surfaces within the bin 17 Sanitize the bin cover dispensing vane bin bottom and interior with an approved sanitizer using the directions for that sanitizer 18 Replace the ice storage bin cover and the front panel November 2008 Page 11 MDT5N25 amp MDT5N40 User Manual MAINTENANCE AND CLEANING AWARNING Moving Parts Hazard Disconnect electrical power to the icemaker dispenser before beginning 1 Air Cooled Models Check the air cooled condenser for lint dirt or grease build up Clean with vacuum or soft brush until light can be seen thru the fins BIN CONTROL SENSOR SENSOR BIN TOP ea Es 2 The ice machine senses water level by a probe located in the water reservoir At least twice a year the probe should be removed from the reservoir and the tip wiped clean of mineral build up CLEAN WATER SENSOR PROBE CAUTION THE TIP IS MADE OF GLASS BIN CONTROL 3 The bin control uses devices that sense light therefore they must be kept clean enough so that they can see At least twice a year remove the bin control sensors from the grommets in the ice chute and wipe them clean 4 The bearing in the breaker should also be checked at least two
13. me s Specifications and design are subject to change 4b without notice A Water Limitations f 6 SPACE An ice machine is a food manufacturing plant it FOR AIR takes a raw material water and turns it into a food product ice The purity of the water is very important in obtaining pure ice and in maximizing product life This section is not intended as a complete resource for water questions but it does offer these general recommendations Airflow 1 Filter the water used to produce ice That is the SEADE water going to the potable water connection UTILITIES Water filters vary greatly in ability and function N 5 Install one that filters out suspended solids to a 6 SPACE dimension of 5 microns or smaller The finer the FOR AIR filter the better but finer filters will clog sooner than AIR COOLED course ones It may be necessary to add a course filter ahead of the fine filter to prolong filter life 2 Check with a water treatment specialist for a water test and recommendations regarding filters and treatment November 2008 Page 3 MDT5N25 amp MDT5N40 User Manual FOR THE INSTALLER Location After uncrating and inspection the unit is ready for installation It is important that the machine be installed in a location where it has enough space above and behind it for service Air cooled models require a minimum of 6 inches to the left and right of the machine for air circulation Machine
14. nser back on 9 Give the owner user the service manual instruct him her in the operation and maintenance requirements of the unit Make sure they know who to call for service 10 Fill out the Customer Evaluation and Warranty Registration form and mail it in to Scotsman November 2008 Page 8 MDT5N25 amp MDT5N40 User Manual OPERATION Ice Vending Dispensing takes place when the Touch Free sensor s infrared beam bounces back to the sensor from a container placed directly in front of it If the container is in front of the Touch Free sensor on the left side the ice dispensing vane will rotate and sweep ice over the ice dispensing chute Ice will continue to discharge out this chute as long as the vane is turning It stops when the dispensing vane stops e f the user does not remove the container ice will be dispensed for 60 seconds and then stop If the container is in front of the Touch Free sensor on the right side the inlet water valve will open and water will flow into the container elf the user does not remove the container water will be dispensed for 90 seconds and then stop TOUCH FREE SENSOR TOUCH FREE SENSOR ICE CHUTE ICE DISPENSING n Has apt VAN E via o aba ori SI ty ree ress we Moti uu es orf pie x di LEA Wy ns on E a A thous h ara FI La or er aged ot an ore Ee pt E eth die HE we i vee rst fey AY dA a nau a Est ny pas do ue PRE spa a FA Ay
15. ppears AWARNING It marks a possible hazard November 2008 Page 1 MDT5N25 amp MDT5N40 User Manual FOR THE INSTALLER Specifications This ice maker dispenser is designed to be mounted on a machine stand or a countertop or using wall mounting kit KWB3 hung from a wall The sink may be retained or removed and the optional longer splash panel KSP5 installed in place of the original Instructions for each kit are included in this service manual Before beginning the installation check that all the materials and kits required are available at the installation location NAMEPLATE on back panel 1 88 dia 3 8 FPT condenser Water Inlet Water Cooled ELECTRICAL JUNCTION BOX 3 8 Flare jee Water Inlet Optional for water and 5 12 drain lines x I sso l 1 2 FPT t A 99 5 Serial Number Plate Cond Drain 12 27 i La 12 6 43 inside on upper base Water Cooled p 12 below control box SAFET Drain SPECIFICATIONS Model Number Dimensions w o stand Basic Cond Ref Charge Minimum Circuit Maximum H x W x D Electric Type R 404A in ounces Ampacity Fuse Size MDT5N40A 1J 48 5 x 26 x 22 5 115 60 1 Air 24 19 3 25 MDT5N40W 1J same 115 60 1 Water 17 17 8 20 MDT5N40A 6J same 230 50 1 Air 24 11 5 15 MDT5N40W 6J same 230 50 1 Water 17 10 9 15 MDT5N25A 1J 41 x 26 x 22 5 115 60 1 Air 24 19 3 2
16. rnal wiring must conform to national state and local electrical codes The use of a licensed electrician is required to perform the electrical installation JUNCTION BOX Internal to back panel on some models November 2008 Page 7 MDT5N25 amp MDT5N40 User Manual FOR THE INSTALLER Final Check List amp Start Up 1 Is the icemaker dispenser installed indoors in a location where the air and water temperatures are controlled and where they do not go beyond design limitations 2 Is there an electrical disconnect switch or plug as required within sight of the installed machine Is the machine on a separate circuit Has the voltage been checked and compared to nameplate requirements 3 Have all of the plumbing connections been made and checked for leaks 4 Has the machine been leveled 5 Is there a minimum of 6 inches of clearance at the left and right sides of an air cooled machine 6 Is there a minimum of 6 inches of clearance at the top and back of the machine for service and utility connections Wall mounted only Is the machine properly installed and secured to the wall 7 Is there a water shut off valve installed near the machine INITIAL START UP Pre Start Inspection 1 Remove the two front panels 2 Check that all shipping blocks have been removed 3 Remove any and all packing tape check inside the storage bin 4 Inspect the interior of the machine for loose screws or wires C
17. sions shown for the unit hardware for this is not included Use fasteners and wall of sufficient strength to carry the use and weight of the icemaker dispenser 3 Lift unit up and hook bracket A over bracket B Slide unit until the two remaining holes are aligned and secure with the remaining 2 1 4 20 bolts flat washers and lock washers November 2008 Page 5 MDT5N25 amp MDT5N40 User Manual FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models The recommended water supply is clean cold water Use 3 8 O D copper tubing connect to the 3 8 male flare at the back of the cabinet Install a hand valve near the machine to control the water supply Note Back flow prevention for the potable water supply is provided by the air gap between the float valve orifice and the water reservoir overflow WATER INLET Water Treatment In most areas a water filter of some type will be useful In areas where the water CABINET is highly concentrated with minerals the water DRAIN should be tested by a water treatment specialist OPTIONAL and the recommendations of the specialist WATER regarding filtration and or treatment should be FILTER followed Water Cooled Models A separate 3 8 O D ik n Ze copper line is recommended with a separate hand ECA i valve to control it It is connected to a 3 8 FPT RE Ao X condenser inlet at the back of the cabinet The DI
18. ter discharge tube locate and match up with notches in the base Rotate clockwise to move spout into installed position Water TT Spout Ice Spout November 2008 Page 4 MDT5N25 amp MDT5N40 User Manual FOR THE INSTALLER Wall Mount Kit CAUTION It is recommended that the wall mounting Oo installation be done by an experienced contractor The weight of the machine when in use may oo gt exceed 350 pounds The unit should be mounted a Z Fe i o on a solid rigid wall with proper fasteners for that x Ze type of wall and of adequate strength to support Es the weight of the machine when in use PA N BASE ROUTIN Clearance between the wall and the icemaker is a HOLE maximum of 1 inch Check utility connections first The electrical junction box will have to be removed and the electrical connections made inside the cabinet in compliance with local codes The plumbing connections may be made through the base or at either side through the pre punched F holes using standard plumbing practices Interior plumbing lines must be disconnected from the original connections and plugged when 2 routing through the side or base MDT6N40 38 6 1 Remove machine top Attach bracket A t ITDEN25 30 n machine using 3 nuts 3 flat washers 3 1 i lock washers and 3 5 16 18 bolts received with a 7 83 the kit DO NOT LIFT ON SINK 2 Mount brackets B and C to the wall at the dimen
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