Scotsman HID312 Technical Service Instructions
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Scotsman HID312 Technical Service Instructions

Scotsman HID312 Technical Service Instructions

Meridian ice maker-dispenser
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See also: Service Manual , Installer and User Manual
HID312, HID525 and HID540
Meridian Ice Maker-Dispensers
Technical Service

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Summary of Contents for Scotsman HID312

  • Page 1 HID312, HID525 and HID540 Meridian Ice Maker-Dispensers Technical Service...

  • Page 2: What You Will Learn

    What you will learn • Introduction • Installation • Operation • Maintenance • Take It Apart • Diagnostics...
  • Page 3 HID Ice Maker-Dispensers • HID models replace MDT models • 2 widths, 16 and 21 inches – 21 inch models have 2 heights, 35 and 41 inches • Bin storage 12, 25 and 40 • Touch Free dispensing • Cord connected – 15 amp •...
  • Page 4 HID312 • 16 wide, 35 high • 12 lb storage • Air cooled only – Washable air filter standard – Air flow left to right • Legs optional • Wall mount version – No drip tray – Long splash panel...
  • Page 5 HID525 • 21 wide x 35 high • 25 lb storage • Air or Water Cooled – Air flow left to right – Washable air filter standard • Legs optional • Wall mount version – No drip tray – Long splash panel...
  • Page 6 HID540 • 21 wide by 41 high • 40 lb storage • Air or Water Cooled – Washable air filter standard – Air flow left to right • Legs optional • Wall mount version – No drip tray – Long splash panel...
  • Page 7 Common Parts to Models – Excluding Voltage • Same: • Same – Gear reducer – Compressor • HID525 and – Auger HID540 – Evaporator – Dispense drive – Breaker motor – Bearings – Construction – Water seal • Chutes – Controller •...

  • Page 8: Component Location

    Component Location Ice Making Apparatus Photo Eye Bin Control Water Reservoir Ice Storage Bin Control Box Agitator Controller Dispense Sensor Compressor Drip Tray Drain Basin...
  • Page 9 Installation - Utilities Flare elbow ships with unit • Recessed area – Power cord • 5-15P plug – Water fitting • 3/8 male flare – Elbow included • Remember to flush the line! – Drain fitting • ¾ FPT Water Drain •...
  • Page 10 Water Filtration and Treatment • Water conductivity limit: 10 microSiemens/cm • Taste and Odor Filters – Use if water has objectionable taste – This type contains activated carbon – T & O Filters remove chlorine • Chlorine frequently added by water treatment plant to kill bacteria •...

  • Page 11: Installation

    Installation • No parts to assemble • Place on counter – Do NOT lift on drip tray – Rubber bumpers on bottom – Seal cabinet to counter – Or use legs • Place on stand – Bolt to stand – Seal cabinet to stand...

  • Page 12: Pre-Start Check

    Pre – Start Check • Remove front panel • Remove splash panel, check for: – All hoses in place – Drip tray on all the – Tubes chaffing – Loose parts...

  • Page 13: Installation - Start Up

    Installation – Start Up • Turn on water supply – Confirm no leaks • Connect power • Push On-Off button – F displayed – Auger motor starts • Auger light on – Compressor starts • Compressor light on...
  • Page 14 Start Up • Check dispensing of ice and water • Check bin control for shut off – Remove bin cover, block eyes in chute • Pour water in drip tray, check draining • Return front panel to unit • Return splash panel to unit...
  • Page 15 Ice Form • Extruded ice...
  • Page 16 Ice Making Type: Continuous Flow Top Bearing Ice Sweep Ice Breaker Extruding Slots Auger Evaporator...

  • Page 17: Ice Making

    Ice Making...
  • Page 18 Ice Vending Photo Eye Sensor Extruded Ice Dispense Agitator Drive Pin Dispense Rotor Dispense Chute Dispense Drive Motor...
  • Page 19 Operation – 115 volt models @ 70/50 HID312 - R-134a (PSIG) HID525 or 540 R-404A (PSIG) Suction Discharge Suction Discharge 6 - 8 102-105 30-32 235-250 Compressor Gear Reducer Amps Amps 4.1 – 4.3 1.1 – 1.3 HID312 5.5 – 5.9 1.1 –...

  • Page 20: Maintenance

    Maintenance • Flush out drain • Drip tray removal and cleaning • Air filter cleaning • Water system cleaning and sanitizing • Dispense system cleaning and sanitizing...
  • Page 21 Clean out and flush drain • Remove visible debris – Coffee grounds – Stir sticks • Pour hot water into drip tray to flush out drain – Suggest weekly flush if beverages are commonly dumped in it – Can remove drip tray if drain is slow or plugged...
  • Page 22 Drip Tray • Remove splash panel • Pull drip tray out to remove...

  • Page 23: Drain System

    Drain System • Drip tray drains into basin • Basin drains to rigid PVC pipe – .8” ID • 15” from inlet to back of unit To ease removal add very small amount of food grade lube to drain stub or o-ring.

  • Page 24: Air Filter

    Air Filter • Pull air filter out – Wash off, dry and return – Also in water cooled • For appearance only...
  • Page 25 Air Cooled Condenser • Remove louvered panel to access inlet surface – One screw, push down and remove • Brush off any loose lint • Vacuum...

  • Page 26: Water System Maintenance

    Water System Maintenance • Scale Removal • Sanitizing • Cleaning Reminder Indicator Light – On after 6 months of power connected time – Reset after following the factory cleaning process...
  • Page 27 Scale Removal • Remove front and splash panels • Push On-Off button to shut ice making off • Shut water off – At reservoir float valve or at hand valve to machine...

  • Page 28: Scale Removal

    Scale Removal • Drain water system – Pull reservoir drain hose off its plug at drain basin – Reconnect hose to plug when done Note: Drip Tray Must Be Attached...
  • Page 29 Scale Removal • Remove reservoir cover, add hot water to fill reservoir and evaporator • Soak for 2 minutes • Drain the hot water...
  • Page 30 Scale Removal • Mix a solution of 50/50 scale remover and potable water – 12 ounces each Clear 1 and water • New ratio – do NOT use on other models that make ice during cleaning...
  • Page 31 Scale Removal • Loosen thumb screw holding reservoir to post • Lift reservoir to top of slot, retighten thumb screw...
  • Page 32 Scale Removal • Vend all ice from the bin • Remove cover from bin...
  • Page 33 Scale Removal • Pour the scale remover mixture into the reservoir • Push the Clean button Auger will operate for 30 minutes and then shut off. Stop at any time by pushing the on off button...
  • Page 34 Scale Removal • Unplug or disconnect electrical power • Drain the scale remover • Add fresh water to reservoir • Drain again...
  • Page 35 Scale Removal • Mix 4 ounces of Clear 1 scale remover to 16 ounces of water. – Wash the reservoir cover, ice discharge chute, ice dispense chute, storage bin cover and bin liner with the solution. – Pour half of remainder into the bin and half into the drip tray.
  • Page 36 Sanitize Now • Use locally approved sanitizer. Scotsman offers Stera Sheen Green Label – Mix 2 gallons of solution – Pour sanitizer solution into reservoir until full – Reconnect electrical power and push On Off to restart ice making • Bin cover must be electrically connected •...
  • Page 37 Sanitize • Pour 16 ounces of hot water into bin to melt ice, repeat until ice is gone • Remove agitator, ice outlet cover, dispense rotor, and drive pin from the bin. – Wash all in the sanitizer solution...
  • Page 38 Sanitize • Wash the inside of the bin and ice discharge chute with the sanitizer solution...
  • Page 39 Sanitize • Wash the ice discharge chute cover, ice sweep and metal below the ice sweep with the sanitizer solution...
  • Page 40 Sanitize • Remove and Wash the ice dispense chute – Do the same for the water dispense chute • Wash the drip tray and grill with the sanitizer solution • Pour the rest into the bin, do not overfill...
  • Page 41 Sanitize • Drain sanitizer • Refill reservoir with clean water • Drain reservoir again – Be sure drain hose is reconnected to its plug...
  • Page 42 Sanitize • Lower reservoir – Re-secure with thumb screw • Return cover to reservoir • Put ice dispense parts back into bin – Drive pin – Rotor – Agitator – Cover...
  • Page 43 Sanitize • Plug power cord in or reconnect power • Push On-Off to restart ice making – Bin cover must be electrically connected • Make ice for 5 minutes, then shut off • Pour 16 ounces of hot water into bin to melt ice, repeat until ice is gone •...
  • Page 44 Take It Apart • Remove front and splash panels...
  • Page 45 Take It Apart • Splash Panel – 4 screws – 2 disconnects...
  • Page 46 Take It Apart • Remove all panels – Top and side panels – Louvered panels – Two back panels...
  • Page 47 Take It Apart • Remove bin – Splash panel – Front panel – Top panel – Bin cover – Chute – Chute bracket – Drain hose – 2 fasteners...
  • Page 48 Remove Bin • Parts in bin – Agitator – Chute cover – Rotor – Drive pin...
  • Page 49 Water Evaporator Reservoir, Float Valve and Water Sensor Auger Drive Motor Dispense Drive Motor Shaft...
  • Page 50 Take It Apart • Remove Extruder Head – Remove ice sweep – Remove chute – Remove 4 bolts • ¼” allen head...
  • Page 51 Take It Apart • Lift extruder head off...
  • Page 52 Take It Apart • Remove Auger – Remove ice sweep – Remove chute – Remove allen head bolts – Reattach ice sweep – Lift auger...
  • Page 53 Down The Barrel Vertical Rifling Water Seal Bottom Bearing Coupling...
  • Page 54 Extruder - Breaker Clip Auger Alignment Bearing Stainless Steel Extruder - Breaker No Lip Seals Stainless Steel Solid Lube Sealed Bearing...
  • Page 55 Auger Bearing Service • Do NOT grease the bearing • Do NOT substitute bearings • ONLY use OEM bearings – Any other bearing will VOID THE WARRANTY • Change both bearings and water seal together...
  • Page 56 Take it Apart • Water Seal – Remove bin – Remove insulation wrap...
  • Page 57 Take it Apart – Water Seal • Remove bolts – Evaporator to Adapter...
  • Page 58 Take it Apart – Water Seal • Lift Evaporator...

  • Page 59: Water Seal

    Water Seal • Two part seal – Stationary part in evaporator – Rotating part on auger • Pull stationary half out of evaporator • Remove rotating half from auger...
  • Page 60 Water Seal • Assembly – Wet stationary half – Insert 1 ¼ to 1 3/8 into bottom of evaporator tube • Adapter will push seal to correct height – About an inch and a half...
  • Page 61 Water Seal • Assembly Rotating Seal – Clean auger shoulder – Add small bead of food grade RTV sealant to shoulder – Push rotating half of seal onto auger • Do NOT touch sealing surface • Push on outside of ring •...
  • Page 62 Take it Apart • Remove adapter • 4 bolts – ½ inch gear wrench...
  • Page 63 Bottom Bearing • Adapter contains bottom bearing – Remove clip – Push bearing out top...

  • Page 64: Gear Reducer

    Gear Reducer • 1/6 HP Coupling • Coupling and Water Shed • Square drive shaft Water Shed...
  • Page 65 Diagnostics • No Ice Dispensed, ice in bin – Hold opaque container in front of sensor • Ice Disp Sensed light on? – No, sensor unplugged or failed – Yes, check next item – Push Dispense Ice button • Ice dispensed? –...
  • Page 66 Dispense Diagnostics • Dispense rotor not turning, motor is operating – Broken gear motor – Broken drive pin – Broken agitator • Dispense motor has full voltage, not operating – Replace motor...
  • Page 67 Dispense Diagnostics • Agitator and Dispense Rotor turn, no ice dispensed – Blockage at outlet • User overfilling bags • Restricted drain, water in bottom of bin • Room air too hot, out of operational range...
  • Page 68 Auger Motor – No Restart • Code 1, motor reversal – Unit shut down immediately – no auto restart – Replace motor – Check for frozen auger & seized bearings • Code 2, motor stall – Unit shut down immediately – no auto restart –...
  • Page 69 No Water • Triggers code 3 – Empty reservoir – Plugged filters – Blocked float valve – Water too clean • RO water no cleaner than 10 microSiemens/cm...
  • Page 70 • Code 4 – Check for water interruption to water cooled model – Check for fan motor failure on air cooled model – HID312 • Opens at 260 PSIG, auto reset at 190 – HID525 or HID540 • Opens at 450 PSIG, auto reset at 350...
  • Page 71 Recall Codes • Push and HOLD the vend disable button • Push and hold the on/off button for 3 seconds or until Status light is on. – Release both. – Pushing Clean will cycle thru the available codes, the total number of codes stored is 30.

  • Page 72: Clear Codes

    Clear Codes • Push and HOLD the vend disable button • Push and hold the clean button for about 3 seconds. – The display code will blink 3 times. • Release both.

  • Page 73: Test Mode

    Test Mode • To start Test Mode: – Push and HOLD the ON/OFF button; at the same time, push and HOLD the CLEAN button. – When a “d” appears in the code display, release the buttons, the test mode will begin. •...
  • Page 74 Potential Updates in the Future • By USB stick – Properly formatted with only the update file on it • Insert stick • Start Test Mode (d) • L will display and the lights will scroll • After 90 seconds O is displayed and the update is complete.
  • Page 75 Technical Service: 1-800-533-6006 www.scotsman-ice.com...
  • Page 76 Are there any questions?

This manual is also suitable for:

Hid540Hid525

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