MDT6 user man.vp
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1. Scotsman Installation and User s Manual for Ice Maker Dispenser Model MDTG6N90 MD T6N90 User Manual INTRODUCTION To the owner or user The service manual you are The ice making section is equipped with the reading is intended to provide you and the following features electronic controls for bin level maintenance or service technician with the and low water thermostatic expansion valve front information needed to install start up clean service for most components and R 404A maintain and service this ice maker dispenser refrigerant The ice dispensing section is a seamless plastic storage bin with a stainless steel ice agitator at the bottom to sweep the ice into the dispensing chute The MDT6 is a combination nugget ice maker and countertop dispenser A water station is standard Table of Contents FOR THE INSTALLER Specifications gt gt gt ario o sos osooso i ii Page 2 FOR THE INSTALLER Disable Page 3 FOR THE PLUMBER cc soss sosonoan a a a aa a a a a a a a a a a a a a a aa Page 4 FOR THE ELECTRICIAN dh E i ee ee ee e a id E i e RR O a Page 5 FOR THE INSTALLER Final Check List gt gt aa athe Sa oe hae a ee ee Das Page 6 INITIAL START UP ee a aa a a a a a a a a a a a a a a a a a a a e Page T OPERATION Ice or Water Vending E d E e a E e a Page 8 DISPENSE AREA SANITATION na A ee ee e i ke Se di i W Rw Page 9 CLEANING and SANITIZING2. rigid tubing WATER COOLED SHUT OFF VALVE CONDENSER WATER BEEE r ba FLOOR DRAIN ad gt oo eS coco cla CONDENSER DRAIN Water Cooled Models In addition to the above mentioned drain a separate condenser drain line must be installed Connect it to the 1 2 condenser drain connection at the back of the cabinet November 2008 Page 4 MDT6N90 User Manual FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES Connect the electrical power supply for the unit to the wires in the junction box at the rear of the machine 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 would be individually fused Voltage variation must remain within design limitations even under starting conditions All external wiring must conform to national state and local electrical codes The use of a licensed electrician is required to perform the electrical installation POWER SUPPLY N A N AN MN N amp My ZA ZZ ELECTRICAL CAE GA CONNECTION sd I November 2008 Page 5 MDT6N90 User Manual FOR THE INSTALLER Final Check List 1 Is the icemaker dispenser installed indoors in a location where the air and ELECTRICAL LEVELED water temperatures are controlle
3. 2 2 6 d E See ke ke di ESE Ee Se eS SB le al Page 10 SENSOR MAINTENANCE ce de e ee e a eee ee es A a Page 11 BEARING MAINTENANCE cae we 4 di s ee W amp ee ee _ 4 amp E i Page 12 SERVICE DIAGNOSIS gt lee et we E Re a e e AEE a Page 13 CONTROL SYSTEM DIAGNOSTICS Se ah eh SR tf sli cli MR e E i Maro mom i e e a cs Page 14 Note this symbol when it appears A WARNING It marks a possible hazard November 2008 Page 1 MDT6N90 User Manual FOR THE INSTALLER Specifications This ice maker dispenser is designed to be mounted on a machine stand or a countertop Before beginning the installation check that all the materials and kits required are available at the installation location Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance They meet or exceed the standards of U L N S F and other agencies Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way including the use of any parts and or other components not specifically approved by Scotsman Scotsman reserves the right to make design changes and or improvements at any time Specifications and designs are subject to change without notice BACK VIEW Water Limitations An ice machine is a food manufacturing plant it takes in a raw material water and turns it into a
4. bead of sealant Wipe off and neatly Water Temp 40 F 100 F smooth any excess sealant from under the sink Water Pressure 20 psi 80 psi edge Connect the sink drain to the dispenser drain system Voltage 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 Service Limitations Do not install in a location where the top of the machine is within 6 of a fixed ceiling Air cooled models require a minimum of 6 inches to the left and right of the machine for air circulation Itis important that the machine be installed in a location where it has enough space above and behind it for service After uncrating and inspection the unit is ready for installation Machine Stand Installation Airflow 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 icemaker dispenser is heavy use of a ICEMAKER mechanical hoist is recommended to lift it to the DISPENSER To height required to
5. install it THE COUNTER The DMS machine stand has holes in the top that M eine SAND match up with threaded holes in the base of the machine Secure the machine stand to the base with 4 5 16 bolts November 2008 Page 3 MD T6N90 User Manual FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models Connect a clean potable and cold water supply to the male flare at the back of the cabinet Install a hand valve near the machine to control the water supply Use O D copper tubing Water Treatment In most areas a water filter of some type will be useful In areas where the water is highly concentrated with minerals the water should be tested by a water treatment specialist and the recommendations of the specialist regarding filtration and or treatment should be followed Water Cooled Models Connect a separate 3 INLET WATER O D copper line with a separate hand valve to control it to the FPT condenser inlet at the back of the cabinet The water pressure to all lines must always be above 20 psig and below 120 psig Drains Air Cooled Models Connect a drain tube to the one FPT drain fitting plastic at the back of the cabinet the drain line is of the gravity type and inch per foot fall is an acceptable pitch for the drain tubing There should be a vent at the highest point of the drain line and the ideal drain receptacle would be a trapped and vented floor drain Use only 34
6. Vending When the ice dispensing sensor detects a container in front of it the control board connects an electrical circuit to the ice chute door solenoid causing the ice chute door to open At the same time power is connected to the agitator drive motor Dispensing takes place when the agitator sweeps the ice through the ice dispensing chute ice will ICE DISCHARGE CHUTE continue to discharge out this chute as long as the agitator is turning It stops when the agitator stops and the ice chute door closes 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 OECD the water sensor on the left side the inlet water valve will open and water will flow a into the container e f the user does not ICE CHUTE remove the container DOOR water will be dispensed for 90 seconds and then stop STORAGE BIN ICE CHUTE AGITATOR DIO AGITATOR E DRIVE MOTOR Rr TE PO Nisa TOUCH FREE SENSOR SINK November 2008 Page 8 MDT6N90 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 s
7. cemaking until 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 interior cover door and agitator with an approved sanitizer using the directions for that sanitizer 18 Replace the ice storage bin cover and the front panel November 2008 Page 10 MDT6N90 User Manual SENSOR MAINTENANCE 1 The ice machine senses water level by a probe 2 The bin control uses devices that sense light located in the water reservoir At least twice a year therefore they must be kept clean enough so that the probe should be removed from the reservoir they can see At least twice a year remove the and the tip wiped clean of mineral build up bin control sensors from the ice chute and wipe them clean SLIDE SENSORS UP TO REMOVE Clean the Probe s Tip with ice machine cleaner and a clean soft cloth November 2008 Page 11 MDT6N90 User Manual BEARING MAINTENANCE The bearing in the breaker should also be checked at least two times per year A Check the bearing by eremoving the ice chute cover e unscrewing the ice sweep 7 L Ice Sweep eremoving the water shed eunscrewing the breaker cover Inspect the bearing There should be plenty of grease and it s
8. d and where they do not go beyond design limitations 2 is there an electrical service disconnect 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 LE N E 7 Is there a water shut off valve installed near the machine 8 Have all of the shipping blocks been removed INLET DRAINS November 2008 Page 6 MD T6N90 User Manual 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 Check the solenoid operated door over the ice discharge port for properly secured linkage pins Check 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
9. food product ice The purity of the water is very important in obtaining pure ice and in maximizing 3 8 FPT der Cond Water Electrical Junction PPOSUCTINTE Inlet Box General recommendations W C are 1 2 FPT h Drain TI E a er Las 3 84 3 4 FPT Drain sa ve 17 59 gt 3 8 Flare Water Inlet Cond Drain ol A ooo WIC 663 4 3 4 FPT AT _ 4 1 Filter the water used to produce ice 2 Check with a water 42 5 treatment specialist for a water test and any recommendations regarding filters and treatment Model Number Model Dimensions Condenser Refrigerant Basic Minimum Max Series w o stand Type Charge Electrical Circuit Fuse H x W x D R 404A Ampacity Size MDTON90AS 1 J 45 74 x 35 18 x 29 26 Air 32 115 60 1 118 1 25 MDT6N90WS 1 J same Water 19 same 16 5 20 Minimum circuit ampacity is used to determine wire size and type per National Electric Code Options Machine stand DMS31 August 2010 Page 2 MDT6N90 User Manual FOR THE INSTALLER Location In both counter top and machine stand installations wipe off and neatly smooth any This ice system is designed to be installed indoors excess sealant Level the machine stand and in a controlled environment cabinet Minimum Maximum Unpack and install the sink brackets Fit the sink Air Temp 50 F 100 F assembly onto the two sink brackets and press r o onto the
10. hould 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 Needle pn Bearin 02 3559 01 Breaker Cover Solenoid Linkage Check Confirm that the linkage pins at the solenoid door are properly secured with cotter pins Check Cotter Pins Circled November 2009 Page 12 MD T6N90 User Manual SERVICE DIAGNOSIS Symptom No ice is 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 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 Unit off due to high pressure control open Check for water interruption water cooled or fan motor failure air cooled Auger motor hums but does not turn Auger can t turn No power to circuit board Check harness HI pressure cut out open Circuit Board gear motor relay will not close Check replace board Water level or ice level sensor failed Check replace sensor No ice auger motor is turn
11. ing Compressor contactor coil is open Check replace contactor Compressor will not start Check start capacitor Check start relay Check compressor windings Circuit board compressor relay will not close Check replace board Unit makes ice but very slowly High discharge pressure because of a dirty condenser Clean the condenser Low capacity because the auger and evaporator are coated with mineral scale Clean the water system Low suction pressure due to low refrigerant charge Locate leak Recover refrigerant repair leak replace dryer evacuate and weigh in the nameplate charge November 2008 Page 13 MDT6N90 User Manual CONTROL SYSTEM DIAGNOSTICS The control system consists of e Control Board eWater Sensor elce Sensors e Vending Sensors 1 Power Light 2 Bin Empty Light 3 Delay Timer Light 4 No Water Light 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 3 Off Timer machine will not restart after any shut off except power to the ON Unit cycling off board until 6 minutes have passed On when water level is
12. 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 3283 01
13. pecial 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 e Vash the splash panel and wipe with with sanitizer Re push the clean switch or allow 2 minutes to pass for the Touch Free system to reset Splash Panel Cleaning Switch November 2008 Page 9 MDT6N90 User Manual CLEANING and SANITIZING 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 Cleaning 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 no
14. rmal upright position 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 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 AWARNING 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 except substitute sanitizer solution for the cleaning solution A possible sanitizer solution may be made by mixing 1 ounce of household bleach and 2 gallons of warm 95 F 115 F potable water 12 Remove the block from the float in the water reservolr 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 i
15. water enters the water reservoir fills the tube from the reservoir to the evaporator and then shuts off Check for leaks 3 Switch the mode switch to ON The auger drive motor and compressor start beginning the ice making process 4 On air cooled models warm air will begin to flow from the condenser Water cooled models will begin to discharge warm water down the drain The unit should soon be making ice 5 There are no adjustments to make so replace the panels 6 Check ice dispensing by placing a container in front of the ice dispensing sensor the dispensing system should activate and if there is ice in the machine it should dispense Repeat for the water dispense 7 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 with a locally approved sanitizer A possible sanitizer is a mixture of 1 ounce of household bleach to 2 gallons of water Wash the interior of the bin with the sanitizing solution Replace all covers and panels Switch the icemaker dispenser back on 8 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 9 Fill out the Customer Evaluation and warranty Registration form and mail it in to Scotsman or register on line at www scotsman ice com September 2013 Page 7 MDT6N90 User Manual OPERATION Ice or Water
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