Scotsman MDT5N40 - Manual

FOR THE INSTALLER: Wall Mount Kit CAUTION It is recommended that the wall mounting installation be done by an experienced contractor. The weight of the machine when in use may exceed 350 pounds. The unit should be mounted on a solid, rigid wall with proper fasteners for that type of wall and of adeq...

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. Water T...

FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES The electrical power to the unit issupplied through the junction box at therear of the machine. Check the nameplate (located on theback panel) for the voltagerequirements, and for the minimumcircuit ampacity. The machine requiresa solid chassis to ...

FOR THE INSTALLER: Final Check List 1. Is the icemaker-dispenser installed indoors, in alocation where the air and water temperatures arecontrolled, and where they do not go beyonddesign limitations? 2. Is there an electrical disconnect (switch or plugas required) within sight of the installed machi...

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 eac...

COMPONENT DESCRIPTION High Pressure Cut Out Switch : A manual 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 i...

COMPONENT DESCRIPTION Evaporator : A refrigerated vertical tube filled with water and containing a water seal and auger. Auger: A solid stainless steel double spiral auger, it pushes the ice crystals up to the top of the evaporator. Water Seal: A two part “face” seal, the top half rotating with the ...

COMPONENT DESCRIPTION: 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: · Touch Free ice or water. · Ice level in the bin. · Water level in the reservoir. The ...

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: · ...

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 pressu...

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 d...

MDT5N25 & MDT5N40 May 2001 Page 17 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 washi...

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...

MAINTENANCE AND CLEANING 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. 2. The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe sh...

MAINTENANCE AND CLEANING 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 ...

MDT5N25 & MDT5N40 May 2001 Page 21 SERVICE DIAGNOSIS Symptom Possible Cause Probable Correction No ice made, nothing operates Unit off due to no power 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...

MDT5N25 & MDT5N40 May 2001 Page 23 Explanation of Indicator Light Position OnBoard Name and Meaning ofLight or Reset On at all times when the master switch is ON and machine is connected to electrical power. 1 Power , ON = Normal On when ice level is low (unit making ice). 2 Bin Empty , ON = Nee...

REMOVAL AND REPLACEMENT WATER RESERVOIR 1. Shut off the water supply to the icemaker.2. Remove front panel and reservoir cover.3. Disconnect inlet water line from valve.4. To remove just the float, push the locking tab at the back of the valve mounting block in and lift the valve and block up and ou...

REMOVAL AND REPLACEMENT: 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: 1. Remove panels and disconnect electrical power.2. Move bail clamp back and remove ice chute cover.3. Unscrew ...

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. 1. The top panel must be removed.2. Remove ice chute cover.3. Unscrew ice sweep.4. Remove ice chute body.5. The aug...

REMOVAL AND REPLACEMENT: Water Seal To Remove the Water Seal: (Assuming all 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....

REMOVAL AND REPLACEMENT To Replace the Evaporator: (Assuming all the steps for removal of the thrust bearing, breaker, auger, and water seal have been performed.)1. Discharge the refrigerant from the ice maker.2. Unsweat the refrigerant connections: a) At the thermostatic expansion valve outlet. CAU...

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.2. Unscrew the 4 cap screws holding the gearmotor to the gearmotor plate.3. Remove the gearmotor from the icemake...

MDT5N25 & MDT5N40 May 2001 Page 31 REFRIGERATION SERVICE General Information: Work on the refrigeration system should only be done when it is certain that the system needs repair. · Refrain from checking refrigeration pressures without reason. Visual inspection of the water system, observation o...

MDT5N25 & MDT5N40 May 2001 Page 32 CIRCUIT BOARD SERVICE Printed Circuit Board Handling Precautions Follow these simple precautions when replacing a Printed Circuit Board1. Keep the replacement PC Board in the anit-static packaging until it is ready to be installed.2. Be sure that your hands are...