S6161-ZX-FSE-010 - Equipment Catalog
Contents
1. GEACA HEATER BIN DRIVE i i 00 ar JUNCTION BOX TERI m e FUSE SIE Mh t r 2 i n Ky 1 i aS V K V MASTER PIN LOCATION DETALI DHT D oN C E rP ea M 306030 20500 Lo 46 N 04070 75 amp c START CAP gt T POTENTIAL a AE RUN CAP NT IN Wh wm2. 11 OPERATION Water Coe ee S d e 4 G Page 12 OPERATION Refrigeration c Oe cde Cle we 32 Ge 13 OPERATION Vending i EEE EEE EEE EE o Sw 14 DISPENSE AREA SANITATION 15 CLEANING and SANITIZING 010020700 0722202022127 Page 16 SENSOR MAINTENANCE gt ZR OO CA le ge Xo 17 BEARING MAINTENANCE oU oe UO es CURES ea Page 18 AUGER MAINTENANCE ek EEE ETE a UE ce EEE DURS UE E 4 DAR EET Page 19 SERVICE DIAGNOSIS US 4 5 20 CONTROL SYSTEM DIAGNOSTICS i tee oe We A Wo NE Duo EE EE EEE EEE EE EEE Page 27 REMOVAL AND REPLACEMENT E Ue d e JE 4 a d Ae EE e we EE e e FS DR Page 22 REMOVAL AND REPLACEMENT Bearing And Breaker 99999999999 Page 23 REMOVAL AND REPLACEMENT WC P5 de 5 3 A 24 REMOVAL AND REPLACEMENT Water Seal cr or or on f o6 nt n 0 0 n0 nt n 7 Page 25 REMOVAL AND REPLACEMENT X
3. Se E 0 Page 26 TO REMOVE AND REPAIR THE GEARMOTOR ASSEMBLY Page 27 REFRIGERATION SERVICE We AO de ck C UE dE db SX X Page 28 This manual was printed on recycled paper Note this symbol when it appears Keep it for future reference A WARNING It marks a possible hazard May 2001 Page 1 MDT6N90 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 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 standards of U L N S F and C U L 3 8 FPT Cond Water Inlet WIC 1 2 FPT Drain I _ Low 3 84 3 4 Drain unies 17 59 without notice BACK VIEW Electrical Junction Box 3 8 Flare Water Inlet I Cond Drain III N III W C 3 4 FPT ye amp 4 63
4. Ice bin cover Evap support bracket Ice Storage Bin Agit mtr support upper Agit mtr support lower Water Chute not used after 9 01 Screw Grommet Door gasket Ice chute before 9 01 Ice chute after 9 01 Bracket Dispense motor assembly Heater for dispense gear motor Agitator Brace Screw Touch free disable switch Spout Government switch Chute extension use began 12 01 December 2001 Page 3 Spout Change Sept 2001 Kit A38106 001 includes items 10 11 19 amp two 17s MDT6N SERVICE PARTS Sink I ITEM PART NUMBER NUMBER DESCRIPTION 1 02 2809 01 Drain top 2 02 1742 00 Drain btm 3 13 0617 11 O ring 4 A34401 016 Right sink support A34401 015 Sink support left 03 1645 01 Screw 20 x 5 02 2582 01 Grill 6 A31047 002 Sink gray 7 13 0674 07 Tube need 33 8 A32235 001 Hold down for Gov units A31047 022 Sink assembly includes items 1 2 and 3 February 2004 Page 4 ITEM NUMBER PART NUMBER 02 3233 01 A35419 020 A34969 001 02 2957 02 A37711 021 12 2802 01 12 2803 01 02 2958 01 A32963 001 13 0875 01 A33102 001 02 2973 02 02 3116 01 02 3268 01 13 061 7 54 A34957 001 A34016 001 A32735 001 A32683 001 A32698 001 A32693 001 A32692 001 03 1418 15 A34017 001 12 2368 01 A32672 001 A32685 001 03 0396 01 02 3206 01 A32690 001 A32687 001 A32787 001 A32684 001 03 1539
5. 6 63 12 5 EES 7 93 Water Limitations An ice machine is a food manufacturing plant it takes in 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 General recommendations are 1 Filter the water used to produce ice 2 Check with a water treatment specialist for a water test and any recommendations regarding filters and treatment Model Number Model Dimensions Condenser Refrigerant Basic Minimum Series w o stand Type Charge Electrical Circuit Fuse H xW xD R 404A Ampacity Size MDT6N90AS 1 Aor B 45 74 x 35 18 x 29 26 Air 32 115 60 1 18 1 25 MDT6N90WS 1 A same Water 22 same 16 5 20 MDT6N90WS 1 B 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 June 2002 Page 2 FOR THE INSTALLER Location This ice system is designed to be installed indoors in a controlled environment Minimum Maximum Air Temp 50 F 100 F Water Temp 40 F 100 F Water Pressure 20 psi 80 psi 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 w
6. SENSOR SINK May 2001 Page 14 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 Re push the clean switch or allow 2 minutes to pass for the Touch Free system to reset MDT6N90 May 2001 Page 15 MDT6N90 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 Sanitizing of the ice storage bin should be scheduled for a minimum of 4 times a year Electrical power will be ON when doing in place
7. AE fm GT n I qun SITT ERE mr JSE COPPER CONDUCTORS ONLY X THIS UMIT MUST M ALL CONTROLS SHOWN IN NORMAL CE 01 RUR DS WAKING WITH ALL DISPENSING SYSTEMS IN PERA LUN May 2001 Page 12 MDT6N SERVICE PARTS Schematic Diagram n PLWER SUPPLY _ NIC THERNISTIR I tu ya WATER CUL TC SL T a H CONTACTOR AU i z WHEN REU D WL ain BIN DRIV M AIR COOLED ar INLY DC BOARD ral R d Oo 4 EN 8 ff RX CL ff RA VATER ff RX BIN TX CE TX VATER TX BIN POMPRESSER 5 START CAP STENT IA 3 dh RELAY BN d 7 8 May 2001 Page 13 Ref NAVSEAINST 4160 3A NAVSEA S0005 AA GYD 030 TMMP NAVSEA SPAWAR TECHNICAL MANUAL DEFICIENCY EVALUATION REPORT TMDER INSTRUCTIONS Continue on 8 1 x 11 page if additional space is needed 1 Use this report to indicate deficiencies problems and recommendation
8. A37809 021 A33276 002 A33269 015 15 0808 01 03 1531 01 A33285 015 03 1733 02 A33281 002 A33280 001 A37808 021 MDT6N SERVICE PARTS Cabinet DESCRIPTION 16 S S Screw Upper Brace 17 Upper brace 18 Top panel stainless 19 Bin support Bin support brace Rt side upper panel 20 Back panel stainless 21 Upper brace 22 Emblem 23 Screw 24 Upper Plate 25 Retainer for ball stud 26 Service Panel stainless 27 Lower frame assy Left side panel upper December 2001 Page 2 A37771 021 A37771 002 15 0803 01 A35305 001 03 1733 01 03 1733 02 A33284 002 A37782 021 02 2973 02 17 2830 01 12 2495 20 19 0644 01 A33284 004 17 2830 02 Upper front panel s s Front pnl ss gov mt mod Emblem Touch Free Bracket Ball stud Catch for stud riveted to panel Lower left side panel Splash panel Ice chute Touch free ice label Sensor set Insulation pad Rt side lower panel Touch free water label ITEM NUMBER O e NO CON MD UPU PART NUMBER A34957 001 A33287 015 A34016 001 A34508 001 A34509 001 A34578 002 03 1531 01 13 0875 01 02 3233 01 A35321 001 A35321 004 A37883 001 12 2368 01 A32672 001 02 3116 01 A33271 015 03 1405 17 12 2501 01 02 3909 01 12 2391 01 A38105 001 MDT6N SERVIGE PARTS
9. E 4 tf Haag ri 242 A i a E F a MY UT a n fu PH fus ot 7 Py eun a MLA p PA ME s 1 i ea SD CUN WATER SEAL e 5 AN A s uM rd alm X way hi f e T r e A VE m ae E JA iet d 1 d ets WATER 2001 9 MDT6N90 CONTROL BOX Circuit Board The circuit board receives input signals from several sensors and translates them to control the electrical power supply to the various loads The sensors include e Touch Free ice or water level in the bin e Water level in the reservoir The loads include e Compressor contactor eFan motor eBin drive motor e Auger drive motor e Water solenoid In addition a Clean switch is available to temporarily disable the Touch Free sensors for cleaning of the splash panel p On Off Switch Manual control for the WF n machine E m Contactor A definite purpose j contactor connecting the compressor to the power supply Potential Relay The compressor start relay aj A POM awe zb A 9 soo 2 4 Mu eo ni CM 24 E Touch Free Control Board M
10. 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 and replace the end cap 7 Prepare the cleaning solution Mix eight ounces of Scotsman Ice Machine Cleaner with three quarts of hot water The water should be between 90 115 degrees F Scotsman Ice Machine Cleaner contains acids These compounds may cause burns 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 WARNING 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 wa
11. onto the bead of sealant Wipe off and neatly smooth any excess sealant from under the sink edge Connect the sink drain to the dispenser drain system Airflow SEAL May 2001 Page 3 MDT6N90 FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models Connect a clean potable cold water supply to the 35 male flare at the back of the cabinet Install a hand valve near the machine to control the water supply Use 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 O D copper line with a separate hand valve to INLET WATER control it to the 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 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 rigid tubing WATER
12. 09 03 1407 02 MDT6N SERVIGE PARTS and Dispensing Ice Chute DESCRIPTION Door gasket Strap kit Bail Clamp Ice Chute Cover Ice Level Sensors set Harness not shown Harness not shown Ice Chute Body Insulation half Grommet Insulation Chute extension Agitator Drain hose clip O ring Bin cover Storage bin Ice Rod Door solenoid Seal Foam seal round Foam seal Screw Plate Gearmotor Assy Heater for gearmotor Linkage pins med Cotter pin Solenoid linkage Door spring Linkage pins small Door Long Axle Clip Washer May 2001 Page 5 AQ PART NUMBER A32961 020 11 0488 21 ref only A35911 001 18 8732 01 18 3732 01 02 3319 02 03 1645 01 18 5505 01 03 1531 08 02 3333 01 MDT6N SERVICE PARTS Air Cooled Refrigeration DESCRIPTION Insulation kit 3 piece Thermo expansion valve Evaporator inlet Fan shroud Condenser Fan blade Dryer Screw Fan Motor Screw Fan motor bracket May 2001 Page 6 ITEM PART NUMBER NUMBER 12 A35949 001 13 11 0501 22 14 18 8721 21 18 8711 50 15 16 0832 20 16 0832 02 16 0832 03 16 03 1407 07 17 03 1410 04 18 18 2200 28 19 03 1406 10 20 18 2200 27 DESCRIPTION Suction line Hi press cut out Compressor Overload for compressor Access Valve Stem cap Core cap Washer
13. Lockwasher Grommet Hex nut Metal sleeve MDT6N SERVICE PARTS Water Cooled Refrigeration May 2001 4 ED KES Se 4 DO RD 79 XI Sg r 7 SSS Un 5 P d l a 7 gt i 1 B E m 1 2 3 b I 6 A a a ww OE _ 13 f ITEM PART ITEM PART NUMBER NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION 1 A32961 020 Insulation kit 3 piece 12 A35949 001 Suction line 2 11 0488 21 Thermo expansion valve 13 11 0501 22 Hi press cut out 3 no number Evap inlet tube 14 18 8721 21 Compressor 4 03 1645 01 Screw 18 8711 50 Overload for compressor 5 03 1407 05 Washer 15 11 0478 21 Water reg valve 6 16 0832 20 Access Valve 16 03 1407 07 Washer 16 0832 02 Stem cap 17 03 1410 04 Lockwasher 16 0832 03 Core cap 18 18 2200 28 Grommet 7 02 3319 02 19 03 1406 10 Hex nut 8 18 3306 25 Condenser 20 18 2200 27 Metal sleeve 9 A31828 002 Adaptor flange 10 A31828 001 Adaptor flange 11 A33990 015 Bracket ITEM NUMBER 26 August 2001 Page 8 MDT6N SERVICE PARTS Water System PART NUMBER 13 0674 06 16 0670 01 05 0501 01 13 0674 06 A33101 022 13 0840 01 A35952 001 13 0079 03 A32294 001 12 1646 05 16 1046 01 13 0674 06 13 0079 03 16 0670 02 13 0079 03 16 0895 01 13 0674 07 A31757 002 02 2814 10 02 3266 03 02 3266 21 02 32
14. STEP 5 B ICE SWEEP cd d Lift up and remove breaker bearing assembly from auger amp evaporator 6 Service the bearing Check for rust rough spots and damage a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new bearing in breaker Note seals must be pressed in with a tool pushing against the outer edge only they will not install by hand Replace parts as required Re grease bearing with Scotsman part no A36808 001 bearing grease Replace top seal and check the o rings replace if cut or torn 7 Reverse to reassemble specific tools and materials are required to install properly a Add food grade grease such as Scotsman part number 19 0569 01 to the seal area before installing on the auger b Check the seal to shaft areas for cuts or rough spots none are permitted STEPS 5 C BEARING AND 6 BREAKER May 2001 Page 23 MDT6N90 REMOVAL AND REPLACEMENT To Remove the Auger Turn off the water to the machine and unclip the evaporator drain hose pull it down and drain the evaporator into the bin or a container WARNING Moving Parts Hazard Disconnect electrical power to the icemaker dispenser before beginning 1 The top panel must be removed 2 Remove ice chute cover 3 Unscrew ice sweep 4 Remove ice chute body 5 The auger and breaker bearing may now be removed
15. as an assembly BREAKER BEARING AUGER ASSEMBLY SHARP EDGES a Unscrew 4 allen head cap screws holding breaker to evaporator b Lift up on breaker and remove auger from evaporator Note If the auger is stuck the breaker must be removed from the auger The breaker may be removed from the auger and evaporator without disturbing the auger a Unscrew breaker cover from breaker left hand threads b Unscrew auger stud from top of auger c Unscrew 4 allen head cap screws holding breaker to evaporator d Lift up amp remove breaker from evaporator e If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole The size of that hole is 5 8 18 Inspect the auger the critical areas of the auger are 1 The auger body It should be clean and shining Sometimes an auger will appear clean when wet but after it is dry it will be seen to be stained Scrub the auger with ice machine cleaner and hot water Ice machine cleaner is an acid Handle it with extreme care keep out of the reach of children 2 he water seal area Because the auger has been removed the water seal will have to be replaced Remove the water seal top half from the auger and inspect the auger for minerals clean as required SLIDE HAMMER PULLER THREAD INTO AUGER May 2001 Page 24 6 90 REMOVAL AND REPLACEMENT Water Seal To Remove the Water Seal Assuming al
16. thrust bearing assembly BREAKER ICE SWEEP BREAKER COVER BEARING May 2001 Page 26 MD T6N90 TO REMOVE AND REPAIR THE GEARMOTOR ASSEMBLY Assuming that the procedures through removal of the water seal have been performed 1 Remove the electrical wires from the gear drive motor WARNING Electrical Shock Hazard Disconnect electrical power to the icemaker dispenser before beginning 2 Unscrew the 4 cap screws holding the gearmotor to the gearmotor plate 3 Remove the gearmotor from the icemaker To Inspect the gearmotor A Remove the cap screws holding the gearmotor case halves together and pry the two cases apart B To lift off the cover lift up until you can feel internal contact then Z pull the cover towards the output GEARCASE gear end and then lift the cover COVER with drive motor attached up and away from the gear motor case Note The case cover output gear bearings and shaft are one pressed together assembly Replace as a unit C Inspect the oil gears and bearings If the oil level and condition is acceptable quickly check the gears and bearings They are likely to be fine if the oil is If there is evidence of water in the oil rusty bearings and gears the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears If in doubt about the condition of a part replace it The oil quantity is 14 fluid
17. 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 The MDT6 is a combination nugget ice maker and seamless plastic storage bin with a stainless steel countertop dispenser A water station is standard ice agitator at the bottom to sweep the ice into the dispensing chute Table of Contents FOR THE INSTALLER Specifications Fi sa et ae tet tae SN Page 2 FOR THE INSTALLER X X Ge a Ge ak we a Ge amp Page 3 FOR THE PLUMBER X AO EEE FE u E A E 0 Page 4 FOR THE ELECTRICIAN ETE EEE 00 5 FOR THE INSTALLER Final Check List gt gt x ss ox om ee nerada torsd Page 6 INITIAL START UP E E 7 COMPONENT DESCRIPTION Chie QW we 5 eo De X ee 5 260 Page 8 COMPONENT DESCRIPTION ce CE EEE Page 9 CONTROL BOX Oe a 10 ELECTRICAL SEQUENCE de
18. 56161 ZX FSE 010 0910 LP 103 7479 OPERATION AND MAINTENANCE INSTRUCTIONS FOR ICE DISPENSER MODEL MDT6N90 SCOTSMAN N00024 97 C 2202 DISTRIBUTION STATEMENT C DISTRIBUTION AUTHORIZED TO U S GOVERNMENT AGENCIES AND THEIR CONTRACTORS ADMINISTRATIVE OPERATIONAL USE DATE OF PUBLICATION OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO THE NAVAL SEA SYSTEMS COMMAND PMS317 WARNING THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THE ARMS EXPORT CONTROL ACT TITLE 22 U S C SEC 2751 ET SEQ OR THE EXPORT ADMINISTRATION ACT OF 1979 AS AMENDED TITLE 50 U S C APP 2401 ET SEQ VIOLATIONS OF THESE EXPORT LAWS ARE SUBJECT TO SEVERE CRIMINAL PENALTIES DESTRUCTION NOTICE DESTROY BY ANY METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTS OR RECONSTRUCTION OF THE DOCUMENT PUBLISHED BY DIRECTION OF COMMANDER NAVAL SEA SYSTEMS COMMAND 01 APRIL 2005 Ea n umm LET lin uad mes GEA E Ela Mies ELT I EX ale v product manual for Scotsman Ice Systems 775 Corporate Woods Parkway Vernon Hills IL 60061 PH 800 SCOTSMAN or 800 726 8762 M DT6N90 FAX 847 913 9844 mode MD TI 6N90 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
19. 66 20 16 0871 01 02 2814 09 13 0895 01 16 1040 01 16 1039 01 DESCRIPTION Tubing 11 rea Tee Evap inlet tubing preformed Tubing 11 req Water sensor Rubber plug Reservoir bracket Drain tubing 25 req Drain assy Inlet water valve Connector Drain tubing 24 req Drain tubing 4 req Tee Drain tubing 24 req Water inlet fitting Sink drain tube 33 req Drain casting for sink drain Hose clamp Plunger seat Float valve Reservoir Assy includes 19 20 Insert Hose clamp Hose need 38 Tee Connector MDT6N SERVICE PARTS NUMBER Evaporator ITEM PART ITEM NUMBER NUMBER DESCRIPTION 1 03 1420 03 Cap Screw 8 03 1417 13 Lockwasher 9 2 A33194 020 Evaporator 10 3 A32962 001 Insulation half 11 4 A32962 002 Insulation half 12 5 02 0929 03 Water seal 13 6 A32777 001 Retaining ring for seal 14 7 02 3837 01 Drip 15 16 17 18 19 20 21 22 23 2001 9 NUMBER 13 0704 00 13 0868 01 02 2977 01 13 0617 54 A32900 020 03 1544 08 13 0617 45 03 1405 52 02 3001 01 13 0871 01 02 2978 01 02 3128 20 13 0617 52 08 0660 01 A34559 020 02 3002 01 DESCRIPTION Gasket Water shed Lip Seal O Ring Breaker incl 10 14 22 Soc head screw O ring Hex cap screw Ice sweep Water shed Lip sea
20. COOLED SHUT OFF VALVE CONDENSER WATER ae A P FLOOR DRAIN M d e eo e 6006 CONDENSER DRAIN Water Cooled Models In addition to the above mentioned drain a separate condenser drain line must be installed Connect it to the gt condenser drain connection at the back of the cabinet May 2001 Page 4 FOR THE ELECTRICIAN MDT6N90 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 ELECTRICAL CONNECTION b ed May 2001 Page 5 N 2 MN NS N NN N S MDT6N90 FOR THE INSTALLER Final Check List 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 servic
21. a 6 minute delay If the ice level sensor is clear bin empty for more than 15 seconds the machine will start up again Another purpose of the circuit board is to turn the machine off if there is not enough water in the machine e When the water level in the reservoir falls below the tip of the water level sensor the machine will shut down e After a 6 minute delay if the water refills the reservoir the machine will start up again Separate from the circuit board elf the high pressure control cut out switch opens the compressor will stop immediately through the contactor It will automatically reset when the discharge pressure drops below 350 PSIG e The master switch is the manual control for the complete machine but it is not a service disconnect Ice Vending e When a user places a container in front of the Touch Free ice sensor and below the ice delivery chute the circuit board connects power to the bin drive motor and ice is dispensed for as long as the container is present If the user does not remove the container ice will be dispensed for 60 seconds and then stop May 2001 Page 11 MDT6N90 OPERATION Water Water enters the machine through the 3 8 male flare at the rear of the cabinet goes to the water reservoir which it enters through the float valve The water then goes out the bottom of the reservoir tank to the bottom of the evaporator Reservoir overflow evaporator condensation and water in
22. ake sure they know who to call for service 10 Fill out the Customer Evaluation and warranty Registration form and mail it in to Scotsman May 2001 Page 7 MDT6N90 COMPONENI DESCRIPTION RESERVOIR WATER LEVEL ICE LEVEL SENSOR SENSOR ICE STORAGE BIN d CONTROL BOX gt SS Sy VS DRAIN TUBE Q NS SS SA Sa SS nnn Control Box Contains the electrical controls that operate the machine High Pressure Cut Out Switch An automatic reset switch sensing the high side refrigeration pressure It is set to shut the machine off if the discharge pressure should ever exceed 450 psig Evaporator A vertical stainless steel tube refrigerated and water filled In it there is a stainless steel auger Reservoir Float operated it maintains the water level in the evaporator at a constant level it also contains the water level sensor Water Level Sensor Senses if there is water in the reservoir to make ice out of Will shut the machine off it there is none HI PRESSURE CUT OUT Ice Level Sensor An electronic eye it senses the presence of ice in the bottom of the ice discharge chute Operates to turn the ice machine on and off automatically as the level of ice in the bin changes Drain Tube When uncapped and lowered drains the evaporator Condenser Air or water cooled where the heat removed in ice making is discharged Ice Storage Bin Ass
23. ay 2001 Page 10 ELECTRICAL SEQUENCE Refer the wiring diagram as needed The Power light on the board glows whenever there is power to the machine and the master switch is ON If the machine is switched off at the master switch but is otherwise ready to go switching the master switch to ON does the following e he bin empty and power lights on the circuit board glow e There is a 15 second delay elf there is enough water in the reservoir the circuit board will allow the machine to start up Start up consists of e he compressor contactor coil receives power from the circuit board e he contactor is energized connecting power to the compressor and the compressor starts e The auger motor receives power from the circuit board and starts e As ice goes past the ice level sensors the bin empty light will stay on and the machine will continue to run unless the ice stays between the sensors for more than 15 seconds bin full At that point the bin empty light goes out and the machine shuts down Other reasons for shut down e Low water level as sensed by the thermistor in the reservoir Shut Down consists of e compressor contactor opens e The compressor stops e auger motor is run by the circuit board for 2 more minutes clearing out ice in the evaporator and then e auger motor no longer receives power from the circuit board and the auger motor stops MDT6N90 After
24. e 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 7 Is there a water shut off valve installed near the machine 8 Have all of the shipping blocks been removed ELECTRICAL SN 2001 6 LEVELED 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 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 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 b
25. ed out of the hoses 11 Shut the low side access valve on the ice machine eClose the valve and replace the caps when done The valve must be closed and the caps must be on or the valve will leak Hose Connection Schematic for Liquid Charging May 2001 Page 28 MDT6N SERVICE PARTS This parts list contains the service parts and wiring diagrams for this model Check the model number of the machine needing parts to be sure that this is the correct parts list Note The liquid line filter drier listed in this parts list is designed for this refrigeration system Premature failure may result if the wrong drier is used TABLE OF CONTENTS abia dle n me se de aa boos hee as adu gand PAGE 2 Mopper a ae EE ei PAGE 3 Sink ao ee Aa a m ae e pas PAGE 4 Po and Dispensing PAGE 5 Air Cooled Refrigeration a e a mea me aaa EET LT LET mega i PAGE 6 Water Cooled Refrigeration ee we 405462 ea a n adi PS iei Ea de N e E a PAGE 7 a e oe ewe ua e see A cati ma eee er eaten as PAGE 8 a e oer esas a i mi e geen yas PAGE 9 E eae eee nes ne PAGE 10 os e a d mp e A at eh ees PAGE 11 ML e e 244 6 ee42s ee EE PAGE 12 13 2001 1 ITEM NUMBER PART NUMBER 03 1419 22 A34563 001 A34562 001 A37806 001 A34625 015 A33270 015
26. eginning 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 5 The unit should soon be making ice If desired the low side pressure may be checked it should be 38 PSIG or 4 PSIG The air cooled discharge pressure will depend upon air and water temperatures but should be between 200 PSIG and 300 PSIG Water cooled discharge pressure should be about 245 PSIG If needed adjust the water regulating valve The above numbers are for new clean machines Field values may be somewhat higher or lower 6 There are no adjustments to make so replace the panels MDT6N90 7 Check ice dispensing by pushing in on the glass filler lever Ice dispenses are portion controlled by turning a knob the length of time the unit dispenses when the glass filler lever is pushed and the amount of ice dispensed is adjusted 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 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 9 Give the owner user the service manual instruct him her in the operation and maintenance requirements of the unit M
27. embly A plastic lined insulated cylinder that receives stores and dispenses the ice Fresh ice enters at the top and when the bin is full enough the ice will be between the ice level sensors and the icemaking will stop Ice is dispensed through a chute at the bottom front when the agitator assembly sweeps the ice through the chute May 2001 Page 8 MDT6N90 COMPONENI DESCRIPTION Evaporator A refrigerated vertical tube filled with Motor A split phase motor that drives the gear water and containing a water seal and auger reducer Auger A solid stainless steel double spiral auger Thrust Bearing As the ice is pushed up the it pushes the ice crystals up to the top of the evaporator the auger is thrust down and pressure evaporator from the auger thrust is taken up by this bearing Water Seal A two part face seal the top half rotating with the auger the bottom half stationary the sealing action being where the two seal faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Breaker Where the ice is compressed and much of the extra water is squeezed out of it before it is discharged into the bin ICE SWEEP BEARING BREAKER ICE CHUTE i ren SEE ZA 7 EVAPORATOR OE PES e MS ou 2 av Er EMEN p Dra E AUGER P i al s Fu ye Ea a hu td
28. er very easily A m l system opened for service must be re sealedas 3 Attach the charging hose to the drum soon as possible 15 minutes maximum 4 Open the valve on the drum and purge the charging hose 5 Zero out the scale 6 Shut the low side access valve at the ice machine 7 Open the discharge manifold valve full open 8 Watch the scale when the correct charge is evacuate to 500 microns shown shut the manifold valve e Liquid charge the system Note If all of the charge will not go in the Access Valves To use the a discharge side access valves A Shut the discharge access valve at the ice Remove the cap from the Torque stem machine stem use a 3 16 allen to 6 8 t lb Switch the machine on s caps to 7 12 wrench to check that the SAN e Special leak detection equipment is required to locate small refrigerant leaks Usually a leak detector capable of detecting a Halongenated refrigerant or HFC 134a will work Check with the leak detector manufacturer if in doubt ft Ib C Open the low side access valve at the ice valve is CLOSED The machine remove the core cap D Open the low side manifold valve and observe the sight glass to be certain that only gas is flowing into the system E When the proper charge is indicated on the scale shut off the manifold valve s 9 Shut off the valve on the refrigerant drum 10 Re open the manifold valves until all liquid has flow
29. here 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 It is 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 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 The icemaker dispenser is heavy use of a mechanical hoist is recommended to lift it to the height required to install it The DMS machine stand has holes in the top that match up with threaded holes in the base of the machine Secure the machine stand to the base with 4 5 16 bolts ICEMAKER DISPENSER TO THE COUNTER TOP OR MACHINE STAND MDT6N90 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
30. l Breaker cover O ring Auger stud Bearing Auger MDT6N SERVICE PARTS Gearmotor ITEM NUMBER CONDOR 0 11 12 13 PART NUMBER 13 0868 01 A32379 026 A32379 022 A32379 024 A32379 023 A32379 021 A32379 020 12 2430 24 12 2430 44 12 2430 21 12 2430 29 12 2430 49 A32379 027 NOT ILLUSTRATED A33220 021 A33220 030 DESCRIPTION Water Shed Bolt 6 per gear box Gearcase Cover 1st gear and bearings 2nd gear and bearings Gasket Gearcase Start switch Emerson Start switch GE split phase Drive motor 115v Rotor bearing Emerson Rotor bearing GE split phase Oil 1 container Complete Assy 115v Gearcase kit no motor Note Gearcase cover includes cover output shaft key output gear bearings and seal November 2003 Page 10 MDT6N SERVICE PARTS Control Box ITEM PART NUMBER NUMBER DESCRIPTION 1 12 0426 02 Toggle switch 2 18 1903 50 Potential Relay 3 18 1902 45 Run capacitor for compressor 4 03 1531 01 Screw 5 A35971 001 Capacitor bracket 6 12 2469 03 Contactor 115v A35971 002 Capacitor bracket 8 18 3701 01 Run capacitor bin drive motor 9 18 1901 03 Start capacitor 10 12 2843 21 Circuit board 11 A33219 001 Standoff 12 A34528 015 Control box cover May 2001 Page 11 MDT6N SERVICE PARIS Wiring Diagram
31. l Board e Water Sensor e Ice Sensors e Vending Sensors IYXIXILLLLALA A TIT gies amp T ves e a E 2022359 9 E 30 Teri SAKA TE 7 ve Ta 2 a 3 a MDT6N90 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 low in the reservoir 4 No Water ON Trouble May 2001 Page 21 MDT6N90 REMOVAL AND REPLACEMENT WATER RESERVOIR 1 Shut off the water supply to the icemaker 2 Remove front panel and reservoir cover 3 To remove float only pry the mounting flanges apart enough to lift one float pivot pin out of the flange hole and pull float up and out of the reservoir 4 To remove reservoir disconnect water inlet compression fitting at reservoir inlet 5 Remove drain hose from reservoir 6 Remove evaporator inlet hose from reservoir 7 Remove water le
32. l steps to remove the auger have been performed 1 The gearmotor evaporator assembly will have to be exposed See illustration next page 2 Remove the 4 hex head cap screws holding the evaporator to the gearmotor assembly Lift the evaporator up and off of the gearmotor 3 Remove the snap ring or wire retainer from the grove under the water seal 4 Pull or drive out the lower half of the water seal To Replace the Water Seal 1 Lubricate the water seal with water and push the water seal into the bottom of the evaporator slightly past the grove for the snap ring e WATER SEAL 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger and clean the mounting area 4 Place a small bead of food grade silastic sealant such as 732 RTV or Scotsman part number 19 0529 01 on the area of the auger where the water seal is to be mounted 5 Carefully push the water seal rubber side against the auger shoulder and the silastic sealant Do not get any sealant onto the face of the seal RETAINING RING 6 Allow the auger and seal to air dry until the sealant is dry on the surface 7 If the original water seal was leaking it would be a good idea to inspect the interior of the gearmotor FOOD GRADE May 2001 Page 25 MDT6N90 REMOVAL AND REPLACEMENT To Re
33. 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 cant 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 1 turning 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 May 2001 Page 20 CONTROL SYSTEM DIAGNOSTICS The control system consists of e Contro
34. n be removed so the parts can be inspected Note Water filters can filter out suspended solids but not dissolved solids Soft water may not be the complete answer Check with a water treatment specialist regarding water treatment For more information on removal of these parts see REMOVAL AND REPLACEMENT WARNING Moving Parts Hazard Disconnect electrical power to the icemaker dispenser before beginning Disconnect electrical power and shut off the water supply Use care when removing the auger it has sharp edges 1 To remove the auger remove the front and top panels 2 Drain evaporator using drain hose 3 Remove bail clamp from over ice chute cover and remove cover 4 Unscrew and remove ice sweep 5 Remove ice chute from evaporator 6 Remove 4 allen screws holding breaker to evaporator 7 Pull up to remove auger After the auger has been removed allow the auger to dry if the auger is not bright and shiny it must be cleaned Clean the auger and evaporator as required DO NOT HONE THE EVAPORATOR 8 Replace the water seal 9 Reverse to reassemble May 2001 Page 19 MDT6N90 BREAKER AND AUGER ASSEMBLY MDT6N90 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
35. ounces do not overfill Note The gears and bearings are available only as pressed together sets Ness D After replacing parts as required if any reassemble the gearcase The two smaller gears and the oil should be in the lower case the output gear will be with the cover As you lower the cover onto the lower case cover will have to be moved closer to the second gear after the output gear has cleared the second gear top bearing E After the case is together and the locating pins are secure in both ends replace all cap screws 4 Bench test the gearmotor check for oil leaks noise and amp draw BEARING BEARINGS hm GEAR amp BEARINGS GASKET GEAR CASE May 2001 Page 27 MDT6N90 REFRIGERATION SERVICE General This ice machine uses R 404A refrigerant Instructions for Liquid Charging R 404A and polyolester oil Do NOT use mineral oil in this In preparation for charging the low side hose refrigeration system should have a sight glass and or a restricting e When the system is serviced a special liquid device such as a Charge Faster installed in it for line drier is required It is included with metering liquid into the low side of the system replacement compressors 1 After a thorough evacuation shut off the manifold valves and switch off the vacuum pump 2 Place a drum of R 404A onto an electronic these ice machines use Polyolester oil Polyolester oil absorbs wat
36. p with ice machine cleaner and a clean soft cloth May 2001 Page 17 MDT6N90 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 Ice Sweep unscrewing the ice sweep eremoving the water shed unscrewing the breaker cover Auger Stud Cap Screw unscrewing the auger stud Inspect the bearing There should be plenty of grease in sight If grease is needed the bearing and breaker should be removed to check the action of the bearing It should rotate smoothly To remove the breaker remove the lower ice chute then take out all four allen head cap screws and pull the breaker off the auger and evaporator If the bearing only needs grease inject grease into the bearing using Scotsman grease needle pn Breaker Cover 02 3559 01 and Scotsman bearing grease cartridge pn A36808 001 Be sure to inject grease evenly and thoroughly See Removal and Replacement section to replace bearing or seals Bearin Needle 02 3559 01 Reverse to reassemble May 2001 Page 18 AUGER MAINTENANCE 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 ca
37. place the Evaporator Assuming all the steps for removal of the thrust bearing breaker auger and water seal have been performed 1 Recover the refrigerant from the ice maker 2 Unsweat the refrigerant connections a At the thermostatic expansion valve outlet Heat sink the TXV body when unsweating or resweating the adjacent tubing b At the suction line at the joint about 3 from the evaporator 3 Remove the evaporator 4 Unsweat the drier from the liquid line 5 After installing a new water seal in the new evaporator see To Replace the Water Seal sweat in the new evaporator at the old tubing connections 6 Install an new drier in the liquid line EVAPORATOR 7 Evacuate the system until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in reverse order of disassembly RETAINING RING SEAL DRIP PAN To Reassemble the Evaporator and Auger 1 After the gearmotor has been inspected fasten the evaporator to the gear motor be sure that the number of shims indicated on the gear case cover is in place between the gearcase cover and the drip pan gasket Torque the bolts to 110 inch pounds 2 Lower the auger into the evaporator barrel slightly turning it to match up with the drive end Do Not Drop Into the Evaporator 3 Complete the reassembly by reversing the disassembly for the breaker amp
38. r warmer evaporators get more refrigerant and colder evaporators get less MDT6N90 At the evaporator the refrigerant enters an area of relatively low pressure where it can easily boil off or evaporate s it evaporates it absorbs heat from the evaporator and whatever is in contact with it such as the water inside it After the evaporator the refrigerant now a low pressure vapor goes through the suction line back to compressor where the cycle is repeated REFRIGERATION SCHEMATIC AIR COOLED SHOWN LIQUID LINE L Dina 0 FAN MOTOR PTET AEE EPs L LEII LILI LLL IET III CONDENSER SUCTION LINE THERMOSTATIC EXPANSION VALVE DISCHARGE LINE EVAPORATOR ho COMPRESSOR May 2001 Page 13 MDT6N90 OPERATION Ice 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 DOOR SOLENOID TE ICE CHUTE STORAGE BIN 2203 DOOR lt Si AGITATOR AGITATOR DRIVE MOTOR TOUCH FREE
39. s relating to publications 2 For CLASSIFIED TMDERs see OPNAVINST 5510H for mailing requirements 3 For TMDERs that affect more than one publication submit a separate TMDER for each 4 Submit TMDERs at web site https nsdsa2 phdnswc navy mil or mail to COMMANDER CODE 310 TMDER BLDG 1389 NAVSURFWARCENDIV NSDSA 4363 MISSILE WAY PORT HUENEME CA 93043 4307 1 PUBLICATION NUMBER 2 VOL PART 3 REV DATE OR CHG DATE 4 SYSTEM EQUIPMENT ID 5 TITLE OF PUBLICATION 6 REPORT CONTROL NUMBER 6 digit UIC YY any four xxxxxx 03 xxxx 7 RECOMMEND CHANGES TO PUBLICATION 7a Page 7b Para 7c RECOMMENDED CHANGES AND REASONS 8 ORIGINATOR S NAME AND WORK CENTER 10 ORIGINATOR S E MAIL ADDRESS 11 TMMA of Manual NSDSA will complete 12 SHIP OR ACTIVITY Name and Address Include UIC CAGE HULL 13 Phone Numbers Commercial DSN NAVSEA 4160 1 Rev 7 2003 S N 0116 If 985 41 00 INCLUDE COMPLETE ADDRESS FOR OFFICE USE ONLY FOLD HERE AND TAPE SECURELY PLEASE DO NOT STAPLE USE PROPER POSTAGE COMMANDER CODE 310 BLDG 1389 NAVSURFWARCENDIV NSDSA 4363 MISSILE WAY PORT HUENEME CA 93043 4307 FOLD HERE AND TAPE SECURELY PLEASE DO NOT STAPLE
40. ter reservolr 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 icemaking 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 May 2001 Page 16 MDT6N90 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 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 Ti
41. the sink are all routed to the drain Water cooled models have a separate water circuit for the cooling water it enters the fitting at the rear goes to the water regulating valve then to the water cooled condenser and down the drain The water dispensing station adds an additional water circuit When the water station sensor detects a container in front of it the control board closes a circuit to an electric water valve and water is dispensed RESERVOIR RESERVOIR OVERFLOW DRAIN WATER INLET p WATER VALVE SINK DRAIN Note The correct water level is determined when the machine is operating Check the water level and compare it to the line molded into the side of the reservoir The water level should be between above and below the line If needed adjust the water level by bending the float arm WATER LEVEL 14 N BIN DRAIN WATER SCHEMATIC May 2001 Page 12 OPERATION Refrigeration Beginning at the compressor the refrigerant is compressed into a high temperature gas The discharge line directs this gas to the condenser At the condenser air or water cooled the gas is cooled by either air or water and it then condenses into a liquid This high pressure liquid then goes through the liquid line to the expansion valve The thermostatic expansion valve meters liquid refrigerant into the evaporator the volume of liquid refrigerant depending upon the temperature of the evaporato
42. vel sensor probe 8 Remove mounting screws from reservoir bracket and remove reservoir from icemaker 9 Reverse to reassemble FLOAT ASSEMBLY LOCKING TABS BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel 3 Remove control box cover 4 Locate bin top in front of and behind it are two rubber bin control grommets 5 Pull each bin control out and in the control box disconnect the electrical leads connecting the bin control to the circuit board 6 Reverse to reassemble be certain that the bin controls are aligned so that the ice level sensors are visible centered through the holes in the ice chute May 2001 Page 22 MDT6N90 REMOVAL AND REPLAGEMENT Bearing And Breaker Note Removal of the auger water seal evaporator and gearmotor must begin at the top of the assembly To Remove the Breaker Bearing Assembly WARNING Moving Parts Hazard Disconnect electrical power to the icemaker dispenser before beginning 1 Remove panels and disconnect electrical power 2 Unscrew three studs and remove ice chute cover 3 Unscrew and remove ice sweep 4 Lift up and remove ice chute 5 The breaker may be removed from the auger and evaporator without disturbing the auger a Unscrew breaker cover from breaker left hand threads b Unscrew auger stud from top of auger c Unscrew 4 allen head cap screws holding breaker to evaporator STEP 5 A
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