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Hoshizaki DCM-500BWH manual

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  • Page 1

    Hoshizaki “A Superior Degr ee of Reliability” www .hoshizaki.com Models DCM-500BAH DCM-500BAH-OS DCM-500BWH DCM-500BWH-OS Cubelet Icemaker / Dispenser Hoshizaki America, Inc. Number: 73165 Issued: 7-30-2008 SE RV ICE MA NU AL ®[...]

  • Page 2

    2 IMPOR T ANT Only quali ed ser vice technicians should at t empt t o install, service, or maintain this icemaker . No ser vice or maint enance should be under tak en until the technician has thor oughly r ead this Ser vice Manual. F ailure t o ser vice and maintain the equipment in accor dance with this manual ma y adv ersel y af f ect saf ety [...]

  • Page 3

    3 IMPOR T ANT This manual should be r ead car efull y bef ore the icemak er is ser viced or maintenance oper ations ar e perf or med. Only quali ed ser vice technicians should install, service, and maintain the icemak er . Read the warnings contained in this booklet car efull y as the y giv e impor tant inf or mation reg arding saf ety . Please [...]

  • Page 4

    4 E. P erformance Data ....................................................................................................... 34 1 . DCM-500BAH(-OS) ................................................................................................ 34 2. DCM-500BWH(-OS) .................................................................................[...]

  • Page 5

    5 I. Specications A. Icemaker 1 . DCM-50 0B AH Note: We r eser v e the r ight t o make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 7.9 RLA 51 LRA GEAR MOTOR 120 V 2.4 FLA 1/4 HP FAN MOTOR 120 V 1.0 FLA 50 W AGITATING MOTOR 120 V 0.9 FLA 55 W DISPENSING MOTOR 120 V 0.9 FLA 55 W OTHERS 12[...]

  • Page 6

    6 2. DCM-50 0BAH-OS Note: We r eser v e the r ight t o make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 7.9 RLA 51 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FAN MOTOR 120 V 0.6 FLA 30 W AGITATING MOTOR 120 V 0.9 FLA 55 W DISPENSING MOTOR 120 V 0.9 FLA 55 W OTHERS 120 V 0.2 A MAXIMUM FUSE SIZE 20[...]

  • Page 7

    7 Note: We r eser v e the r ight t o make changes in specications and design without prior notice. 3. DCM-50 0BWH AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 7.9 RLA 51 LRA GEAR MOTOR 120 V 2.4 FLA 1/4 HP AGITATING MOTOR 120 V 0.9 FLA 55 W DISPENSING MOTOR 120 V 0.9 FLA 55 W OTHERS 120 V 0.2 A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) [...]

  • Page 8

    8 4. DCM-50 0BWH-OS Note: We r eser v e the r ight t o make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 7.9 RLA 51 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP AGITATING MOTOR 120 V 0.9 FLA 55 W DISPENSING MOTOR 120 V 0.9 FLA 55 W OTHERS 120 V 0.2 A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONL[...]

  • Page 9

    9 II. General Inf ormation A. Construction 1 . DCM-50 0B AH(-OS) Stor age Bin Inlet W at er V alv e Reservoir Contr ol Box Air -Cooled Condenser Spout Co v er Ev aporat or Assembl y Compr essor Dispensing Motor Agit ating Mot or Agit at or Ice Dispensing A uger Dispensing W ater Va l v e Gear Motor Spout B Float S witch Dispense Mode S witch Contr [...]

  • Page 10

    10 2. DCM-50 0BWH(-OS) Stor age Bin Inlet W at er V alv e Reservoir Contr ol Box W ater -Cooled Condenser Spout Co v er Ev aporat or Assembl y Compr essor Dispensing Motor Agit ating Mot or Agit at or Ice Dispensing A uger Dispensing W ater Va l v e Gear Motor Spout B Float S witch Dispense Mode S witch Contr ol Switch Shut ter Assemb l y P ow er S[...]

  • Page 11

    11 B. Ice Making Unit 1 . DCM-50 0B AH(-OS), DCM-50 0BWH(-OS) Cubelet Cut ter Allen Head C ap Scr e w Gear Motor Spline Coupling O-Ring Mechanical-Seal Extruding Head and Upper Bearing He x Head Bolt with W asher A uger Ev aporat or Housing and Low er Bearing C ylinder Insulation Allen Head C ap Scr e w with W asher W asher M8×1 4[...]

  • Page 12

    12 C. Sequence of Operation The steps in the sequence ar e as outlined below . When pow er is supplied, the pow er s witch is in the "ON" position, the door s witch is engaged, and the contr ol s witch is in the "ICE" position, the "PO WER" LED on the contr ol boar d comes on. 1 . F ill Cyc le WV opens and the reservoi[...]

  • Page 13

    13 Legend: BC - bin control Comp - compressor DC - drain cy cle DT - drain timer DV - drain v al ve FMS - self-contained f an motor FT - ll timer (low w at er saf ety) GM - gear motor GMPR - gear motor pr otect r elay LF/S - lower  oat switch UF/S - upper oat s witch WCR - wat er control r ela y WV - inlet wat er val ve Components Energize[...]

  • Page 14

    14 D . Contr ol Board • A Hoshizaki e x clusive solid-st at e contr ol boar d is emplo yed in DCM-500BAH, DCM-500BAH-OS , DCM-500BWH, and DCM-500B WH-OS Cubelet Icemak er / Dispensers . • All models are pr etest ed and f actor y -adjusted. C A UTION 1 . F ragile, handle v er y carefull y . 2. The control board cont ains int egr at ed cir cuits,[...]

  • Page 15

    15 Micropr ocessor (boar d re vision lev el indicated b y last 2 digits on label) "POWER" LED (lights when power is supplied to the boar d) "FLUSH" LED (X5 Rela y) Drain V alve "COMP" LED (X2 Rela y) Compr essor , F an Motor 1 0.5V T ransformer "GM" LED (X1 Rela y) Gear Motor "DM" LED (X4 Rela y) Sh[...]

  • Page 16

    16 Dispensing Components See "III.B. W iring Diagrams" f or details. Bin Contr ol, Contr ol S witch, Low W ater Saf et y Micropr ocessor (boar d re vision lev el indicated b y last 2 digits on label) "PO WER" LED (lights when power is supplied to the boar d) "FLUSH" LED (X6 Rela y) Drain V alve "COMP" LED (X2[...]

  • Page 17

    17 2. Feat ures The control boar d pro vides the f ollowing saf eguar ds: • P r ovides component pr otection during low wat er supply . • P urges r emaining ice in the e vaporat or at star tup and shutdown. •P r ovidesshor tcy cleprot ectionf orthecompressor .  a) LED Lights The "PO WER" LED indicat es [...]

  • Page 18

    18 3. Controls and Adjustments a) P or tion Control When the dispense mode s witch is placed in the "POR TION" position, a v ar iable r esistor (located on the contr ol board) contr ols the ice dispense time . The gures on the label indicat e dispensing time (sec.). When shipped, the por tion control is set at the minim um dispensing t[...]

  • Page 19

    19 3. 60 seconds af t er the "GM" LED comes on, the "COMP" LED comes on, and the compressor and f an motor st ar t. If the "COMP" LED does not come on 60 seconds af ter the gear mot or star ts , chec k that the gear mot or pr otect r elay cont acts (connect or K2 terminals 1 and 2) hav e closed. If the "COMP"[...]

  • Page 20

    20 E. Float S witch Depending on local wat er conditions, scale ma y b uild up on the  oat switch. Scale on the s witch can cause the  oats to stic k. In this case, the  oat switch should be cleaned and check ed. F ir st, r emov e the switch fr om the wat er tank. Soak the s witch assemb l y in ice machine cleaner . W hile not necessar y ,[...]

  • Page 21

    21 III. T echnical Infor mation A. W at er Cir cuit and R efr igeration Cir cuit 1 . DCM-50 0B AH(-OS) Inlet W at er Va l v e Dispensing W at er V alv e Drain Va l v e Float Switch W at er Le v el T o Drain Evapor ator Spout Expansion Va l v e Gear Motor Over ow Reservoir W at er Supply Drier Air -Cooled Condenser Fa n High P ressure Switch Acce[...]

  • Page 22

    22 2. DCM-50 0BWH(-OS) Inlet W at er Va l v e Dispensing W at er V alv e Drain Va l v e Float Switch W at er Le v el T o Drain Evapor ator Spout Expansion Va l v e Gear Motor Over ow Reservoir W at er Supply Drier W at er -Cooled Condenser High P ressure Switch Access Va l v e Access Va l v e Compr essor W at er Supply In W at er Supply Out Refr[...]

  • Page 23

    23 * (Control Board) BK BLACK BR BROWN BU BLUE DBU DARK BLUE GY GRA Y LBU LIGHT BLUE O ORANGE P PINK R RED V VIOLET W WHITE Y YELLO W W/BK WHITE/BLACK W/BR WHITE/BRO WN W/BU WHITE/BLUE W/O WHITE/ORANGE W/R WHITE/RED WIRE COLOR CODE B. W iring Diagr ams 1 . DCM-50 0B AH, DCM-50 0BWH * High Pressure Switch Air-Cooled Model Water-Cooled Model Cut-out [...]

  • Page 24

    24 2. DCM-50 0BAH-OS, DCM-50 0BWH-OS BK BLACK BR BROWN BU BLUE DBU DARK BLUE GY GRA Y LBU LIGHT BLUE O ORANGE P PINK R RED V VIOLET W WHITE Y YELLO W W/BK WHITE/BLACK W/BR WHITE/BRO WN W/BU WHITE/BLUE W/O WHITE/ORANGE W/R WHITE/RED WIRE COLOR CODE * (Control Board) * High Pressure Switch Air-Cooled Model Water-Cooled Model Cut-out 412± 21 PSIG 384[...]

  • Page 25

    25 C. Sequence of Electrical Cir cuit – Ice Making 1 . F ill Cyc le With the po wer s witch in the "ON" position and the contr ol s witch in the "ICE" position, the inlet wat er val v e energizes and the r eser voir  lls with wat er until the upper oat s witch closes . DCM-500BAH-OS DCM-500BWH-OS DCM-500BAH DCM-500BWH BK[...]

  • Page 26

    26 2. Ice Pur ge Cyc le Upper  oat s witch closes, wat er control r ela y energizes , inlet w at er v al v e closes , gear motor st ar ts, gear mot or prot ect r ela y energizes . BK BLACK O ORANGE W/BK WHITE/BLACK BR BROWN P PINK W/BR WHITE/BRO WN BU BLUE R RED W/BU WHITE/BLUE DBU DARK BLUE V VIOLET W/O WHITE/ORANGE GY GRA Y W WHI TE W/R WHITE/[...]

  • Page 27

    27 3. F reeze Cyc le Compr essor and fan mot or star t 60 seconds af t er gear motor st ar ts. BK BLACK O ORANGE W/BK WHITE/BLACK BR BROWN P PINK W/BR WHITE/BRO WN BU BLUE R RED W/BU WHITE/BLUE DBU DARK BLUE V VIOLET W/O WHITE/ORANGE GY GRA Y W WHI TE W/R WHITE/RED LBU LIGHT BLUE Y YELLOW WIRE COLOR CODE (Control Board) (Control Board) DCM-500BAH-O[...]

  • Page 28

    28 4. 1 2 Hour Dr ain Cyc le / Drain S witch 1 2 hour timer initiates cy cle or the control s witch is mov ed t o the "DRAIN" position. 90 seconds af ter initiation, the compr essor and condenser f an motor st op , 60 seconds later the gear mot or stops . Once the gear motor pr ot ect r ela y de-ener giz es, the dr ain wat er val v e open[...]

  • Page 29

    29 5. Shutdown The bin control s witch is activ at ed and a 1 50 second shutdown sequence begins. Af ter the bin control has been open f or 90 seconds, the compr essor and fan mot or st op , the agitating mot or operat es for 0.6 seconds , and 60 seconds later the gear motor st ops. BK BLACK O ORANGE W/BK WHITE/BLACK BR BROWN P PINK W/BR WHITE/BRO [...]

  • Page 30

    30 6. Low W ater Safety Upper  oat s witch fails t o close within 90 seconds af t er the low er  oat switch opens , the 1 50 second shutdown sequence begins. The inlet wat er val v e r emains open until the upper  oat s witch closes. BK BLACK O ORANGE W/BK WHITE/BLACK BR BROWN P PINK W/BR WHITE/BRO WN BU BLUE R RED W/BU WHITE/BLUE DBU DARK[...]

  • Page 31

    31 7 . High Pr essur e S witch When the high pr essure s witch opens, the compressor st ops immediatel y , 60 seconds later the gear mot or stops . T o rest ar t, allow time f or the high pressur e s witch to close, then mov e the power s witch to the "OFF" position and then bac k t o the "ON" position. BK BLACK O ORANGE W/BK WH[...]

  • Page 32

    32 D . Sequence of Electr ical Cir cuit – Dispensing 1 . Continuous Dispense Agit ating mot or ener giz es f or .6 seconds f or ev er y 1 2 seconds of accumulative dispense time. Maximum dispense time per dispense s witch activation is 60 seconds . Af t er 60 seconds, the dispense s witch must be diseng aged and eng aged again. BK BLACK O ORANGE [...]

  • Page 33

    33 2. P ortion Dispense Agit ating mot or ener giz es f or .6 seconds f or ev er y 1 2 seconds of accumulative dispense time. A variab le r esist or which contr ols the amount of ice dispensed is locat ed on the control boar d. The gures on the label indicat e dispensing time (sec.). See "II. D .3.a) P or tion Control." When shipped, t[...]

  • Page 34

    34 E. P erf ormance Data 1 . DCM-50 0B AH(-OS) Note: 1 . The data without *marks should be used f or r ef er ence onl y . 2. W e r eserve the right to mak e changes in specications and design without prior notice. APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. 70 *535 (243) 510 (231) 485 (220) 80 461 (209) 438 (199) [...]

  • Page 35

    35 2. DCM-50 0BWH(-OS) Note: 1 . The data without *marks should be used f or r ef er ence onl y . 2. W e r eserve the right to mak e changes in specications and design without prior notice. APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. 70 * 567 257 549 249 539 244 80 529 240 519 235 509 231 90 500 227 * 495 224 481 [...]

  • Page 36

    36 IV . Service Diagnosis A. Diagnostic P r ocedure This diagnostic procedur e is a sequence check that allo ws y ou to diagnose the electrical sy stem and components . Befor e proceeding , check f or correct inst allation, adequat e wat er supply (minimum of 1 0 PSIG, maximum of 1 13 PSIG) and pr oper volt age per unit nameplate . Alw a ys choose [...]

  • Page 37

    37 6) Re ll /Low Wat er Safety – As ice is produced, the w at er le vel in the r eser v oir drops. As the wat er lev el drops, the upper and lo wer  oat s witches open. Fir st, the upper  oat s witch opens. Nothing occurs at this time. When the lo wer  oat switch opens , re ll begins. The w at er contr ol r ela y de-ener giz es, th[...]

  • Page 38

    38 C. Diagnostic Charts 1 . No Ice P r oduction Pr oblem P ossible Cause Remed y [1] The icemak er will not star t. (Fill C ycle) a) P ower Suppl y 1. Of f, b lo wn fuse, or tripped break er . 1. T ur n on, replace , or reset. 2. Loose connection. 2. Tight en. 3. Bad contacts . 3. Chec k f or continuity and replace . 4. Not within specications. [...]

  • Page 39

    39 Pr oblem P ossible Cause Remed y [1] The icemak er will not star t. (Fill C ycle) (continued) m) High P ressur e Switch 1. Bad contacts. 1. Chec k f or continuity and replace . 2. Dir ty air lt er or condenser . 2. Clean. 3. Ambient or condenser wat er t emperatur e t oo warm. 3. R educe t emperatur e. 4. R efrigerant ov ercharged. 4. R ecov [...]

  • Page 40

    40 Pr oblem P ossible Cause Remed y [3] Ice pur ge cycle will not star t. a) W ater Contr ol R ela y 1. Low w ater saf et y circuit open (bad contacts ). 1. Replace . b) Contr ol S witch 1. Bad contacts. 1. Check f or continuit y and replace . c) Bin Contr ol 1. Open. 1. Bin full, check f or continuity on pro ximit y s witch. d) Contr ol Boar d 1. [...]

  • Page 41

    41 Pr oblem P ossible Cause Remed y [5] All components run, but no ice is produced. (continued) d) Evapor at or 1. Def ective . 1. Replace. e) W ater Supply Line (wat er -cooled model only) 1. Condenser w ater pressur e too low or of f and high pressure control opens and closes frequentl y . 1. Check and get recommended pr essure. f) W ater Regulat[...]

  • Page 42

    42 3. Other Pr oblem P ossible Cause Remed y [1] Icemaker will not stop when bin is lled with ice. a) Bin Control 1. Actuat or sticking. 1. Adjust or r eplace. 2. P ro ximit y s witch closed. 2. Replace . [2] Abnor mal noise. a) F an Motor (e xcept wat er -cooled model) 1. Bearing wor n out. 1. Replace. 2. F an blade def or med. 2. R eplace f an[...]

  • Page 43

    43 4. Dispensing Pr oblem P ossible Cause Remed y [1] No ice dispensed. a) P ower Suppl y 1. "OFF" position. 1. Mo v e to "ON" position. 2. Loose connection. 2. Tight en. 3. Bad contacts . 3. Chec k for continuity and replace . 4. Not within specications. 4. R ef er t o nameplat e and correct. b) Ice St orage 1. No ice or lit[...]

  • Page 44

    44 Pr oblem P ossible Cause Remed y [3] No water dispensed. a) P ower Suppl y 1. "OFF" position. 1. Mo v e to "ON" position. b) W ater Suppl y 1. W ater suppl y off or pressur e too low . 1. Check and get recommended pr essure. c) Dispensing W ater Va l v e 1. Coil winding open. 1. R eplace . 2. Wiring t o dispensing wat er v al[...]

  • Page 45

    45 5a. Ice Dispensing "Continuous" Mode Component Contr ol Board Sensor Control Boar d /Other Sensor On O ff Solenoid K2 Pin 6 LBU - To Neutr al/GND - 120V A C 0 VA C Sensor K5 Pin 4 W/0 R To K5 Pin 5 Y WH 5VDC 0VDC K5 Pin 6 W/BR BK 5VDC 5VDC 5b. Ice Dispensing "P ortion" Mode Component Control Boar d Sensor Control Boar d /Othe[...]

  • Page 46

    46 V . R emov al and R eplacement of Components IMPOR T ANT 1 . Ensure all components , fast eners, and thumbscr ews ar e secur el y in place af ter the equipment is ser viced. 2. The P ol y ol E ster (POE) oils used in R-404A units can absorb moisture quickl y . Theref ore it is impor tant t o pr e vent moistur e fr om ent ering the sy stem when r[...]

  • Page 47

    47 1) Alw ay s install a ne w dr ier e ver y time the sealed r efrigeration s y st em is opened. Do not replace the drier until af ter all other r epair or replacement has been made. Install the new drier with the arr ow on the drier in the dir ection of the r efrigerant  o w . 2) Braz e all  t tings while purging with nitrogen g as o wing[...]

  • Page 48

    48 B. Remo val and R eplacement of Compressor IMPOR T ANT Alw ay s install a new drier e v er y time the sealed r efrigeration s y st em is opened. Do not replace the drier until af t er all other r epair or r eplacement has been made. Note: When replacing a compr essor with a defectiv e winding, be sur e t o install the new st ar t capacit or and [...]

  • Page 49

    49 C. Remo val and R eplacement of Expansion V alve IMPOR T ANT Sometimes moisture in the r efr igeration cir cuit ex ceeds the drier capacit y and freez es up at the expansion v alv e . Alwa ys inst all a ne w drier ev er y time the sealed refrigeration s yst em is opened. Do not replace the drier until af t er all other repair or r eplacement has[...]

  • Page 50

    50 F ig. 1 Extruding Head and Upper Bearing Ev aporat or Allen Head C ap Scr e w with W asher Allen Head C ap Scr e w Housing and Low er Bearing Gear Motor Barrier Spline Coupling O-Ring Mechanical Seal A uger Cut ter A uger Pin He x Head Bolt with W asher D . R emov al and R eplacement of Ev apor ator Assembl y Components C A UTION Make sur e the [...]

  • Page 51

    51 1 . Upper Bear ing W ear Check T o ensure that the bearing inside the extruding head does not e x ceed the wear toler ance of .02", f ollow the instructions below . See Fig . 2. 1) Mov e the control s witch to the "OFF" position, then turn off the po wer supply . Remo v e the front and t op panels, then mov e the power s witch to [...]

  • Page 52

    52 8) Replace spout A, spout B, and the fr ont cover of the st orage bin in their correct positions. 9) Mov e the power s witch to the "ON" position, then r eplace the panels in their corr ect positions. 1 0) T ur n on the power suppl y , then mo v e the contr ol s witch to the "ICE" position t o star t the automatic icemaking p[...]

  • Page 53

    53 3) Remo ve the apr on panel, then r emov e the lef t side panel. 4) Reco ver the r efrigerant and st ore it in an appr ov ed container . 5) Disconnect the drip tra y hose fr om the t ee. Remo ve the f our scre ws securing the dr ip tra y , then remov e the dr ip tra y and hose. 6) Remo ve the fr ont co v er of the st orage bin. Remo v e spout B,[...]

  • Page 54

    54 5. Remo v al and R eplacement of Mechanical Seal and Lo w er Housing 5a. Mechanical Seal 1) Mov e the control s witch to the "DRAIN" position and drain all of the w at er fr om the e v aporator . 2) Af ter the wat er has stopped draining , mov e the contr ol s witch to the "OFF" position, then tur n of f the power suppl y . R[...]

  • Page 55

    55 1 8) Mov e the po wer s witch to the "ON" position, then r eplace the panels in their corr ect positions. 1 9) T ur n on the pow er suppl y , then mov e the control s witch to the "ICE" position t o star t the automatic icemaking pr ocess. 6. Remo v al and R eplacement of Gear Mot or 1) Mov e the control s witch to the "[...]

  • Page 56

    56 1 7) Mov e the po wer s witch to the "ON" position, then r eplace the panels in their corr ect positions. 1 8) T ur n on the pow er suppl y , then mov e the control s witch to the "ICE" position t o star t the automatic icemaking pr ocess. E. Remo val and R eplacement of Self-Contained Air-Cooled Condenser IMPOR T ANT Alw ay [...]

  • Page 57

    57 F . R emo val and R eplacement of W ater -Cooled Condenser IMPOR T ANT Alw ay s install a new drier e v er y time the sealed r efrigeration s y st em is opened. Do not replace the drier until af ter all other r epair or replacement has been made. 1) Mov e the control s witch to the "OFF" position, then turn off the po wer supply . Remo[...]

  • Page 58

    58 G. Remo val and R eplacement of W ater R egulating V alve - W ater -Cooled Model Only IMPOR T ANT Alw ay s install a new drier e v er y time the sealed r efrigeration s y st em is opened. Do not replace the drier until af ter all other r epair or replacement has been made. 1) Mov e the control s witch to the "OFF" position, then turn o[...]

  • Page 59

    59 20) Mov e the power s witch to the "ON" position, then r eplace the panels in their corr ect positions. 21) T ur n on the power suppl y , then mov e the control s witch to the "ICE" position t o start the automatic icemaking pr ocess. H. A djustment of W ater R egulating V alve - W ater -Cooled Model Onl y The wat er regulati[...]

  • Page 60

    60 J . Remo val and R eplacement of Inlet or Dispensing W ater V alve 1) Close the wat er supply line shut-of f val ve . 2) Open the wat er supply line drain v alv e . 3) Mov e the control s witch to the "OFF" position, then turn off the po wer supply . Remo v e the front and t op panels, then mov e the power s witch to the "OFF"[...]

  • Page 61

    61 1 0) Open the wat er supply line shut-of f val ve . 1 1) T ur n on the pow er suppl y , mov e the power s witch to the "ON" position, then r eplace the front panel in its corr ect position to eng age the door s witch. Mov e the control s witch t o the "ICE" position. 1 2) Allow the icemaker t o ll f or t wo min ut es. 1 3)[...]

  • Page 62

    62 6) Install the ne w mot or . 7) Assemble the r emov ed par ts in the re ver se order of which the y wer e remov ed. 8) Mov e the power s witch to the "ON" position, then r eplace the panels in their corr ect positions. 9) T ur n on the power suppl y , then mov e the control s witch to the "ICE" position t o start the automati[...]

  • Page 63

    63 VI. Cleaning and Maintenance IMPOR T ANT Ensure all components , fast eners, and thumbscr ews ar e secur el y in place af ter any cleaning or maint enance is done to the equipment. A. Cleaning and Sanitizing Instructions HOSHIZAKI recommends cleaning this unit at least twice a year . More frequent cleaning, ho we v er , ma y be requir ed in some[...]

  • Page 64

    64 1 . W ater Sy stem a) Cleaning Solution Dilute 9.6  . oz. (0.29 l) of Hoshizaki "Scale A wa y" with 1 .6 gal. (6.0 l) of warm water . b) Cleaning Pr ocedure 1) Close the wat er supply line shut-of f val ve . 2) Mov e the dispense mode switch t o the "CONTINUOUS" position, then dispense all of the ice from the st orage bin.[...]

  • Page 65

    65 1 3) Mov e the contr ol s witch to the "OFF" position, then tur n of f the pow er suppl y . 1 4) Close the wat er suppl y line shut-of f val ve . c) Sanitizing Solution Dilute 0.82  . oz. (25 ml) of a 5.25% sodium hypochlorit e solution (chlorine bleach) with 1 .6 gal. (6.0 l) of warm water . d) Sanitizing Pr ocedure - F ollowing Cl[...]

  • Page 66

    66 3) Remo ve the fr ont co v er of the st orage bin. 4) Remo ve the mot or brac ket thumbscr e ws, r st from the v er tical plane and then fr om the horizontal plane . W hile holding on t o the corr esponding agitat or or auger , mo v e the agitating mot or or the dispensing mot or t o war ds you. Remo v e the agitat or and the dispensing auger[...]

  • Page 67

    67 B. Maintenance This icemaker m ust be maintained individuall y , ref erring to the instruction manual and labels pro vided with the icemaker . The schedule below is a guideline. More fr equent maintenance , howe ver , may be r equired depending on wat er qualit y , the icemaker's envir onment, and local sanitation regulations . Consult with[...]

  • Page 68

    68 C. Pr eparing the Icemak er f or Long Stor age C A UTION When the icemak er is not used for t wo or thr ee day s under nor mal conditions, it is suf ficient t o onl y mov e the control s witch to the "OFF" position. W hen storing the icemak er f or ext ended time or in sub-freezing temper atur es , tur n the wat er of f and drain out a[...]

  • Page 69

    69 2. On wat er -cooled model only , r emo v e the w ater fr om the wat er-cooled condenser: 1) Make sur e the control s witch and the power s witch are in the "OFF" position and that the pow er suppl y is of f. R emov e the top , apron, and lef t side panels. 2) Close the condenser wat er supply line shut-of f val ve and open the condens[...]