Scotsman TC 180 Service Manual

Scotsman TC 180 Service Manual

Electronic counter nugget ice dispenser
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Page 1
Page 1
SERVICE MANUAL
TC 180
Electronic
counter nugget
ice dispenser
MS 1000.59 REV. 09/2001

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Table of Contents
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Summary of Contents for Scotsman TC 180

  • Page 1 Page 1 Page 1 SERVICE MANUAL TC 180 Electronic counter nugget ice dispenser MS 1000.59 REV. 09/2001...
  • Page 2: Table Of Contents

    Page 2 Page 2 Table of contents page TABLE OF Specifications CONTENTS GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection Location and levelling Electrical connections Water supply and drain connections Final check list OPERATING INSTRUCTIONS Start up Operational checks PRINCIPLE OF OPERATION (How it works) Water circuit Refrigerant circuit Mechanical system...
  • Page 3: Specifications

    NOTE. The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN NUGGET DISPENSER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 21 of this manual.
  • Page 4 Page 4 Page 4 SPECIFICATIONS TC 180 - MACHINE SPECIFICATIONS Ice bin Water req. Model Cond. unit Finish Comp. HP lt/24 HR TC 180 AS S. Steel 5 Kg. Start Electric power cons. Basic electr. Amps Watts Nr. of wires...
  • Page 5: General Information And Installation

    Forward the completed self-addressed up and operation, maintenance and cleaning for registration card to SCOTSMAN EUROPE the SCOTSMAN TC 180 counter nugget ice factory. dispenser. Their ice making systems are thoroughly tested providing the utmost in flexibility to fit the needs C.
  • Page 6: Water Supply And Drain Connections

    1 bar CONNECT TO POTABLE WATER ONLY (14 psi). The model TC 180 has the possibility to have the water connections through the bottom base or Check all refrigerant lines and conduit lines through the rear bottom side of the machine.
  • Page 7: Operating Instructions

    Page 7 Page 7 OPERATING INSTRUCTIONS START UP B. Elapsed the 3 minutes - stand by period - the unit starts operating with the activation in After having correctly installed the ice maker and sequence of the following assemblies: completed the plumbing and electrical connec- tions, perform the following “Start-up”...
  • Page 8: Operational Checks

    Page 8 Page 8 OPERATION CHECKS UPON THE UNIT NOTE. If, after ten minutes from the START UP compressor start-up, the evaporating tem- perature has not dropped down to a value D. Remove service panels and if necessary ° ° lower than -1 C (30 F) the evaporating tem-...
  • Page 9 Page 9 Page 9 Check for the correct CUT-OUT and After this, open the water supply line shutoff CUT-IN of the float reservoir water level sen- valve to fill up again the float reservoir, the 5th sors by shutoff the valve on the water supply line. YELLOW LED goes off while the 2nd RED LED This will cause a gradual decrease of the water starts blinking.
  • Page 10 Page 10 Page 10 H. CHECK OF THE DISPENSING NOTE. The ICE LEVEL CONTROL (INFRA- OPERATING MECHANISM RED SYSTEM) is independent of the tempe- There are two different versions of dispensing rature however, the reliability of its detection label; one with just ICE and CONTINUOUS push can be affected by dirt and scale sediment buttons and a second with ICE/WATER + ICE/ which may deposit directly on the light source...
  • Page 11: Principle Of Operation (How It Works)

    Page 11 Page 11 PRINCIPLE OF OPERATION ice storage bin gets filled-up to the level of the WATER CIRCUIT control “eyes” located on the sides of the ice The water enter in the machine through the water spout. As the ice level raises to interrupt the light inlet fitting (which incorporates a strainer and it is beam running between the two infrared lamps, located at the rear side of the cabinet) and then...
  • Page 12: Mechanical System

    YELLOW LED blinks. COMPRESSOR MECHANICAL SYSTEM FAN MOTOR The mechanical system of the SCOTSMAN Nugget Ice Dispenser consists basically of a limit, the temperature sensor changes again its gear motor assembly which drives, through a electrical resistance reducing therefore the ratched coupling, a worn shaft or auger placed current flow to the P.C.
  • Page 13: Operating Pressures

    Page 13 Page 13 When the gear motor rotating speed is slowed REFRIGERANT METERING DEVICE: below 1300 r.p.m. from the normal speed of capillary tube 1400 r.p.m. the Electromagnetic Safety Device transmits an electrical signal to the MICROPROCESSOR to stop immediately the OPERATING PRESSURES °...
  • Page 14: Components Description

    Page 14 Page 14 COMPONENT DESCRIPTION NOTE. To restart the unit after the shutoff caused by the hi condenser temperature, it is necessary to push the RE-SET button A. EVAPORATOR TEMPERATURE (after having remedied to the causes of unit SENSOR - BLUE 2 POLES CONNECTOR stoppage) or to switch OFF and ON the - MANUAL RESET power line main disconnect Switch.
  • Page 15 Page 15 Page 15 turn, put in rotation a dispensing vane that pushes printed circuits one at high and the other at low the ice towards a rectangular opening located in voltage, protected by three fuses, integrated with the bottom of the storage bin. a RE-SET button.
  • Page 16 Page 16 Page 16 to limit the noise level. All the three gears are FLOAT RESERVOIR encased in case bearings and are covered by lubricant grease (MOBILPLEX IP 44). The float reservoir consists of a plastic water pan Two seal rings, one fitted on the rotor shaft and on which is fitted a float valve with its setting the other on the output shaft keep the gear case screw.
  • Page 17: Wiring Diagram

    Page 17 Page 17 WIRING DIAGRAM AIR AND WATER COOLED 230/50/1 B - WHITE G - GREY N - BLACK A - BLUE M - BROWN GV - YELLOW GREEN...
  • Page 18: Service Diagnosis

    Page 18 Page 18 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 19 Page 19 Page 19 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 20: Maintenance And Cleaning Instructions

    SYSTEM sediment on them can be removed with the help Switch OFF the Master disconnect switch of a bit of SCOTSMAN Cleaner plain. on the power line. With the ice machine and fan motor OFF Remove the top panel and later the top...
  • Page 21 Prepare the cleaning solution by diluting in a plastic container two liters of warm water (45°- NOTE. DO NOT use ice produced with the 50°C) with a 0,2 liters of SCOTSMAN Ice Machine cleaning solution. Be sure none remains in Cleaner.

This manual is also suitable for:

Tcs 180 asTcl 180 asTc 180 as

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