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Summary of Contents for Scotsman UCF 160
- Page 1 Page 1 Page 1 UCF 160 - 165 SERVICE MANUAL REV. 11/202117...
- Page 2 STATUS REASON WHY – SIGNIFICATION – SIGNIFICATO – Beschreibung ON STEADY UNIT OFF AT BIN FULL FIXE CABINE PLAINE FISSO CONTENITORE PIENO Ständig an Maschine AUS, Speicher voll! BLINKING SLOW I/R BEAM CUTTED CLIGNOTANT LENT FAISCEAU INFRA ROUGE CELLULE NIVEAU GLACE INTERROMPU LAMPEGG.
- Page 3 Page 2 Page 2 TABLE OF Table of contents page CONTENTS Specifications GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection Location and levelling Electrical connections Water supply and drain connections Final check list Installation practice OPERATING INSTRUCTIONS Start up Operational checks PRINCIPLE OF OPERATION (How it works) Water circuit Refrigerant circuit...
- Page 4 Page 3 Page 3 SPECIFICATIONS ELECTRONIC FLAKER UCF 160 - 165 Important operating requirements: - Air temperature 10°C (50°F) 40°C (100°F) - Water temperature 5°C (40°F) 35°C (100°F) - Water pressure 1 bar (14 psi) 5 bars (70 psi) - Electr. voltage...
- Page 5 Page 4 Page 4 SPECIFICATIONS UCF 160 - 165 MACHINE SPECIFICATIONS Ice bin Water Req. lt / 24 hr Model Cond. unit Finish Comp. HP UCF 160-165 AS 75** S. Steel 25 Kg. UCF 160-165 WS Water 300* Start Electric power cons.
- Page 6 Any severe damage noted should be of operation at temperature exceeding the following limitations will constitute reported to the delivering carrier and a concealed misuse under the terms of the SCOTSMAN damage claim form filled in subjet to inspection of Manufacturer’s Limited Warranty the contents with the carrier’s representative...
- Page 7 Page 6 All Ice-O-Matic ice machines are supplied from Connect the 3/4" GAS male fitting of the water the factory completely pre-wired and require only inlet, using the flexible hose supplied to the cold electrical power connections to the wire cord water supply line with regular plumbing fitting provided at the rear of the unit.
- Page 8 Page 7 Page 15 11. Has the Manufacturer’s registration card Check all refrigerant lines and conduit lines to guard against vibrations and possible failure. been filled in properly? Check for correct model and serial number against the serial plate and Have the bin liner and cabinet been wiped mail the registration card to the factory.
- Page 9 Page 8 OPERATING INSTRUCTIONS START UP B. Elapsed the 3 minutes - stand by period - the unit starts operating with the activation in sequence of the following assemblies: After having correctly installed the ice maker and completed the plumbing and electrical GEAR MOTOR connections, perform the following “Start-up”...
- Page 10 Page 9 Page 17 FIG. 2 WATER LEVEL RESET GEAR MOTOR ROTATION CONTACTOR COIL RELAYS CONDENSER TEMP. T 40÷50°C EVAPORATOR TEMP. GEAR MOTOR ICE LEVEL CONTROL TRIAC FAN MOTOR TRANSF. ELECTRONIC CARD FIG. 3 WATER LEVEL RESET GEAR MOTOR ROTATION CONTACTOR COIL RELAYS CONDENSER TEMP.
- Page 11 Page 10 Page 18 NOTE. If, after ten minutes from the NOTE. On air cooled models, the condenser compressor start-up, the evaporating tem- temperature sensor, which is located within perature has not dropped down to a value the condenser fins, keep the head (conden- °...
- Page 12 Page 19 Page 11 This will cause a gradual decrease of the water After this, open the water supply line shutoff level in the float reservoir and as soon as the level valve to fill up again the float reservoir, the gets below the sensors, the flaker stops to ope- YELLOW LED goes off while the RED LED rate (drive motor keeps on working by 3' delay...
- Page 13 Page 12 Page 20 NOTE. During the life of the machine the Ice NOTE. The ICE LEVEL CONTROL Level Control may require a recalibration (INFRA-RED SYSTEM) is independent of mainly when the glass of the two optical eyes the temperature however, the reliability of are covered by a thin lay of scale.
- Page 14 Page 13 Page 21 PRINCIPLE OF OPERATION WATER CIRCUIT horizontal motion to be discharged out, through the ice spout, into the storage bin. The water enter in the machine through the water By running the ice maker, i.e. by putting the unit inlet fitting which incorporates a strainer and it is under power, starts the automatic and continuous located at the rear side of the cabinet and then it...
- Page 15 Page 14 Page 22 the MICRO-PROCESSOR of the P.C. Board NOTE. In case the condenser temperature probe which energizes, through a TRIAC, the Fan s enses that the condenser temperature has ° ° Motor in ON-OFF mode. rised to 70 C (160 F) - on air cooled versions °...
- Page 16 After having diagnosed and eliminated the MECHANICAL SYSTEM source of the failure, to restart the unit it is The mechanical system of the SCOTSMAN necessary to switch OFF and ON the power Flaker machines consists basically of a gear line main disconnnect switch (Fig. 7).
- Page 17 Page 16 Page 24 REFRIGERANT METERING DEVICE: NOTE. Before charging the refrigerant system capillary tube always check the type of refrigerant and quantity as specified on the individual ice machine dataplate. REFRIGERANT CHARGE (R 134 A) The refrigerant charges indicated are relatives air cooled water cooled to averages operating conditions.
- Page 18 Page 17 Page 25 B. WATER LEVEL SENSOR This sensor system consist of two small stainless steel rods vertically fitted on the inner face of the reservoir cover and electrically connected to the low voltage circuit of the P.C. Board. When the cover of the reservoir is positioned in its place the tips of both the rods dip into the reservoir water and detects and signals its presence by making...
- Page 19 Page 18 Page 26 F. P.C. BOARD (Data processor) Should the rotating speed drop below 1300 r.p.m. the magnitude measured by this The P.C. BOARD, fitted in its plastic box located device is such to signal to the microprocessor to in the front of the unit, consists of two separated stop the unit and light-up the YELLOW LED.
- Page 20 Page 19 Page 27 TO BY-PASS THE 3'/60' STAND BY TIME, SYMPLY JUMP "TEST" CONTACTS WITH PCB ENERGIZED JUMPERS EXTERNAL SWITCHES SOCKET The Flaker PC Board is equipped by three jumpers: Connected to the external Green Master and Red Alarm Reset Switches, it receives power from the Master Switch as well as it provides power to the Red Alarm switch in order to signal PURGE Used on machine equipped with Water...
- Page 21 Page 20 Page 28 The drive motor rotor is kept aligned on its vertical NOTE. It is very important to make sure of the axis by two ball bearings permanently lubricated. correct fitting of the cover on the reservoir in The gear case contains a train of three spur order to enable the sensor to efficiently control gears the first one of which is in fiber to limit the...
- Page 22 Page 29 Page 21 ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES B. REPLACEMENT OF EVAPORATOR NOTE. Read the instructions thoroughly TEMPERATURE SENSOR before performing any of the following adjustment or removal and replacement pro- Remove the front and top panels. cedure. Remove the insulation from the refrigerant tubing, connecting the freezer to the accumulator, to gain access to the sensor probe well and be A.
- Page 23 Page 22 Page 32 REPLACEMENT OF DRIER NOTE. Thoroughly evacuate the system to remove moisture and non condensables after Remove front and side panels. evaporator replacement. Recover the refrigerant from the system and transfer it in a container so to reclaim or recycle G.
- Page 24 Page 23 Page 33 Remove the cover and disconnect the NOTE. Thoroughly evacuate the system to electrical leads from the compressor junction remove moisture and non condensables after box. condenser replacement. Recover the refrigerant from the system and transfer it in a container so to reclaim or recycle it. I.
- Page 25 WIRING DIAGRAM 115/60/1 - 230/50/1 V...
- Page 27 Page 26 Page 36 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Unit will not run Blown fuse in P.C.Board Replace fuse & check for cause of No LED lighted-up blown fuse Master switch in OFF position Turn switch to ON position Inoperative P.C.Board Replace P.C.Board Loose electrical connections...
- Page 28 Page 27 Page 37 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Wet ice Ambinet temperature too high Move unit to cooler location High water level in the freezer Lower to approx. 20 mm below ice spout Faulty compressor Replace Machine runs but makes no ice Water not entering in the freezer Air look in feed line to freezer.
- Page 29 Page 28 Page 38 MAINTENANCE AND CLEANING INSTRUCTION A. GENERAL Check the ice level control sensor to test shut-off. Put some ice in front of the ice level The periods and the procedures for maintenance control so to cut off the light beam for at least 10 and cleaning are given as guides and are not to seconds.
- Page 30 Page 29 Page 39 Shut close the water shutoff valve on water NOTE. The ice made with the cleaning line. solution is slushy and coloured also, it may tend to loose fluidity creating some resistence Remove the top panels to gain access to the in being elevated and extruded;...
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