Installation and User's Manual for Ice Maker-Dispenser Models MDT3F12 and MDT4F12
MDT3F & MDT4F User Manual Introduction Purpose of this manual: To provide detailed installation and operation instructions; to give insights into how the machine works; and to list possible causes for basic problems. The MDT3F and MDT4F are combination ice makers and dispensers. The refrigeration system is air cooled, using R-134a as a refrigerant. The control system uses electric eyes as a bin control and a water level sensor as the water safety control. As ice is made, it fills a plastic storage bin.
MDT3F & MDT4F User Manual Specifications: Scotsman ice machines, like the MDT3F or MDT4F, are designed to be installed indoors, in a controlled environment. The minimum and maximum operating conditions are: · Minimum Air Temperature: 50oF. · Maximum Air Temperature: 100 F. · Minimum Water Temperature: 40oF. · Maximum Water Temperature: 100oF. · 60 Hz voltage may vary between 104 and 126 o volts. · Water Pressure may vary between 20 and 80 psi.
MDT3F & MDT4F User Manual To The Installer: A professional installation of any product is critical to the long term satisfaction of the user. The ice maker-dispenser is designed to be installed either on a counter, or, using a wall hanging kit, hung from a wall. Determine the location from the anticipated use and any options planned for. This machine is air cooled and blows air out the lower left side of the cabinet. Do not install the machine where the side to side air flow might be blocked.
MDT3F & MDT4F User Manual For The Electrician Electrical connections: Check the nameplate for voltage and current requirements. An electrical cord is not supplied. Connect the MDT3F or MDT4F to a separate electrical circuit. Wiring to the machine must conform to all codes. A licensed electrician may be required in some situations. Remove the back panel to make the electrical connection. The electrical connection is made on the terminal strip in the junction box inside the machine.
MDT3F & MDT4F User Manual For The Plumber Drains: The dispenser requires a gravity drain. The pitch on the drain tubes must be at least ¼ inch fall per foot of horizontal run. On long horizontal runs, a vent at the back of the cabinet will improve draining, and is recommended. There are two drains to connect: A sink drain, a 7 8” ID plastic tube; and the bin drain, a 5 8” ID plastic tube. Install rigid tubing between the machine and the building drain. Route the drains separately to the building drain.
MDT3F & MDT4F User Manual Wall Mount Kit (KWB4): Contents: Top Wall Bracket: 1. Top Case Hanger Bracket: Attaches to the frame of the dispenser. 1. Hold the bracket on the wall where it will be mounted. 2. Top Wall Bracket: Mounts to the wall and engages the top case hanger bracket to support the dispenser. 2. Mark the positions of the holes in the bracket onto the wall. 3. If needed, drill pilot holes for the fasteners. 3.
MDT3F & MDT4F User Manual Final Check List & Initial Start Up 1. Is the machine located indoors where the temperature limitations are not exceeded? Initial Start Up 1. Remove 2 screws at the bottom of the front panel. 2. Is there at least 6" clearance on both sides of the cabinet for adequate air flow? 2. Disconnect wires at water switch. 3. Is the water supply adequate, and has a shut off valve been installed? 3. Remove screws and the top and side panels. 4. Is the cabinet level? 4.
MDT3F & MDT4F User Manual User Operation The MDT3F and the MDT4F are automatic ice vending machines. All either requires is cool air, clean water and an adequate supply of electrical power. To Vend Ice: Place a container in front of the Touch Free sensor and below the ice spout. Hold it there until the container is full of ice. Do NOT overfill the container or a build up of ice in the sink or a back up of ice in the spout will occur. To Vend Ice and Water. Switch the Water Switch to ON.
MDT3F & MDT4F User Manual Mechanical Operation General: Ice Vending The machine makes, stores and dispenses ice. It also dispenses water. The ice making portion of the machine produces flaked ice at about 32 oF. The ice falls thru a chute into the dispensing bin. Above the cylindrical bin is a dispense drive motor and electric eyes. The drive motor is connected to an ice vane in the bin.
MDT3F & MDT4F User Manual Maintenance: Although the ice in this dispenser is completely untouched, the water and ice vending systems will need to be periodically sanitized and de-mineralized. The air cooled condenser will also need to be kept clean. Schedule the sanitation, cleaning and de-mineralization on a regular basis to keep the ice clean and the machine operating efficiently. Twice per year is the standard recommendation.
MDT3F & MDT4F User Manual Inspection: Photo-Electric Eyes The photo electric eyes used to “see” the ice build up in the top of the bin cover must be clean to get a good “look” at the ice. If clouded by mineral scale, the eyes will cause the ice machine to shut off and stay off. To clean the photo-electric eyes. 1. Remove the top panel. 2. Pull both of the photo-electric eyes out of their rubber grommets. 3. Wash both eyes with a clean cloth dipped in Scotsman Ice Machine Scale Remover.
MDT3F & MDT4F User Manual Dispense Area Sanitation 1. The spout may be removed by taking out the two mounting screws. 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. · Push and release the Cleaning Switch located to the left of the ice spout.
MDT3F & MDT4F User Manual Service Diagnosis PROBLEM No ice is dispensed. POSSIBLE CAUSE No ice in bin due to: · No electrical power · Overuse · Water supply turned off · Bin controls dirty · Water sensor dirty · Control system malfunction · Auger drive motor open · Centrifugal switch open · Auger does not turn · No refrigeration PROBABLE CORRECTION Check/restore power Recheck ice needs vs. machine capacity.
MDT3F & MDT4F User Manual Service Diagnosis: Circuit Board 1 2 3 4 Explanation of Indicator Light On at all times when the master switch is ON and machine is connected to electrical power. Position On Board 1 Name and Meaning of Light or Reset 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 machine will not restart after any shut off (except power to the board) until 6 minutes have passed.
SCOTSMAN ICE SYSTEMS 775 Corporate Woods Parkway, Vernon Hills, IL 60061 800-533-6006 www.scotsman-ice.
