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Page 1
Page 1
SERVICE MANUAL
AFC 134
S
Electronic cubelets
with storage
SCOTSMAN EUROPE - FRIMONT SPA
Via Puccini, 22 - 20010 Pogliano M.se - Milano - Italy
Tel. +39-02-93960.1 (Aut. Sel.)- Telefax +39-02-93550500
Direct Line to Service & Parts:
Phone +39-02-93960350 - Fax +39-02-93540449
Website: www.scotsman-ice.com
E-Mail: scotsman.europe@frimont.it
REV. 12/2010
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Summary of Contents for Scotsman AFC 134
- Page 1 SERVICE MANUAL AFC 134 Electronic cubelets with storage SCOTSMAN EUROPE - FRIMONT SPA Via Puccini, 22 - 20010 Pogliano M.se - Milano - Italy Tel. +39-02-93960.1 (Aut. Sel.)- Telefax +39-02-93550500 Direct Line to Service & Parts: Phone +39-02-93960350 - Fax +39-02-93540449 Website: www.scotsman-ice.com...
- 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.
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Page 3: Table Of Contents
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: Specifications
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 CUBELET at peak performance levels, periodic maintenance checks must be carried out as indicated on page 30 of this manual. - Page 5 HEIGHT (less legs) 795 mm. HEIGHT (with legs) 915 mm. WIDTH 950 mm. DEPTH 605 mm. WEIGHT 79 Kg. AFC 134 - MACHINE SPECIFICATIONS Ice bin Water req. Model Cond. unit Finish Comp. HP lt/24 HR AFC 134 AS 130** S.
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Page 6: General Information And Installation
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: Water Supply And Drain Connections
Page 6 Page 6 All SCOTSMAN 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: Installation Practice
12. Has the owner been given the name and the 10. Has the owner/user been given the User phone number of the authorized SCOTSMAN Manual and been instructed on the importance of Service Agency serving him? periodic maintenance checks? G. -
Page 9: Operating Instructions
Page 8 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 9 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 10 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 11 Page 11 This will cause a gradual decrease of the water Check for correct operation of the ice level level in the float reservoir and as soon as the level control, by putting some ice so to cut the light gets below the sensors, the flaker stops to ope- beam of the sensing eyes.
- Page 13 Page 12 Page 12 M. If previously installed, remove the refrigerant NOTE. During the life of the machine the Ice service gauges and re-fit the unit service panels Level Control may require a recalibration previously removed. mainly when the glass of the two optical eyes are covered by a thin lay of scale.
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Page 14: Principle Of Operation (How It Works)
Page 13 Page 13 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 14 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 °...
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Page 16: Mechanical System
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: Operating Pressures
Discharge pressure: REFRIGERANT CHARGE (R 404 A) air cooled water cooled 17 ÷ 18 bar Air cooled version 245 ÷ 260 psig AFC 134 380 gr 300 gr Water cooled version 17 bar 245 psig NOTE. Before charging the refrigerant system... -
Page 18: Components Description
Page 17 Page 17 COMPONENTS DESCRIPTION D. WATER LEVEL SENSOR This sensor system consist of two small stainless steel rods vertically fitted on the inner face of the A. GREEN MASTER SWITCH PUSH reservoir cover and electrically connected to the BUTTON low voltage circuit of the P.C. - Page 19 Page 18 Page 18 GEAR MOTOR ROTATION AND SPEED NOTE. During the life of the machine the Ice SENSOR Level Control may require a recalibration mainly when the glass of the two optical eyes This safety device is housed on top of the Drive are covered by a thin lay of scale.
- Page 20 Page 19 Page 19 Moreover the PC Board is equipped with input signals received from the sensors in order to terminals for the leads of the sensor probes as control the operation of the different electrical well as input and output terminals for the leads of components of the ice maker (compressor, gear the ice maker electrical wires.
- Page 21 Page 20 Page 20 TO BY-PASS THE 3'/60' STAND BY TIME, SYMPLY JUMP "TEST" CONTACTS WITH PCB ENERGIZED JUMPERS FLOAT RESERVOIR The Flaker PC Board is equipped by three jumpers: The float reservoir consists of a plastic water pan on which is fitted a float valve with its setting screw.
- Page 22 Page 21 Page 21 ICE BREAKER The gear reducer output shaft is connected to the freezer auger by a ratched coupling which is The ice breaker is fitted in the freezer upper part made of two toothed halves that engages and it has, several rectangular openings where themselves only if turned in the correct direction the ice is forced to pass through.
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Page 23: Adjustment, Removal And Replacement Procedures
Page 22 Page 22 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 24: Replacement Of The Reservoir Water Level Sensor
Page 23 Page 23 Unloose the three screws securing the plastic NOTE. In case the TEST contacts are jumped cover to the gear motor speed sensor housing together (it is a possibility when PC Board is and remove it. replace as spare parts), the machine starts up immediately with all the electrical parts Unloose the two screws securing the sensor (compressor, drive motor and fan motor start... -
Page 25: Replacement Of The Gear Motor Assy
S.S. trust washer. water seal assy and both the top and the bottom bearings any time the auger is removed. To facilitate this, SCOTSMAN EUROPE REPLACEMENT OF THE GEAR MOTOR Service makes available a service Kit ASSY P/N 001028.07 which includes besides the above mentioned parts, the ice breaker O ring Remove the rear side and top panels. -
Page 26: Replacement Of Drier
Page 25 Page 25 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 N. -
Page 27: Replacement Of Water Regulating Valve (Water Cooled Models)
Page 26 Page 26 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. P. -
Page 28: Wiring Diagram
Page 27 Page 27 WIRING DIAGRAM AIR AND WATER COOLED 230/50-60/1... - Page 29 Page 27 Page 27...
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Page 30: Service Diagnosis
Page 28 Page 28 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 31 Page 29 Page 29 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.
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Page 32: Maintenance And Cleaning Instructions
If required, polish the two sensor rods secured to the float reservoir cover, heavy scale sediment on them can be removed with the help of a bit of SCOTSMAN Cleaner plain. C. CLEANING INSTRUCTIONS OF WATER With the ice machine and fan motor OFF on... - Page 33 Be sure none remains in the bin. SCOTSMAN Ice Machine Cleaner. 12. Pour into the water reservoir 1 cc. (approx 20 drops) of Scotsman Sanitiser (Antialgae P/N WARNING. The SCOTSMAN Ice Machine 264000.00) then switch the unit ON. Cleaner contains Phosphoric Hydroxyacetic acids.
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