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Manual Hoshizaki KM-320MAH

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  • Hoshizaki KM-320MAH - page 1

    Hoshizaki “A Superior Degr ee of Reliability” www .hoshizaki.com Models KM-320MAH, MWH KM-515MAH, MWH, MRH KM-600MAH KM-650MAH, MWH(-M), MRH KM-901MAH, MWH, MRH/3 Modular Crescent Cuber Hoshizaki America, Inc. Number: 73196 Issued: 4-29-2013 SE RV ICE MA NU AL ...

  • Hoshizaki KM-320MAH - page 2

    2 W ARNING Only quali ed ser vice technicians should inst all and ser vice the appliance . T o obtain the name and phone number of y our local Hoshizaki Cer ti ed Ser vice Repr esentativ e, visit www .hoshizaki.com. No ser vice should be under tak en until the technician has thor oughly r ead this Ser vice Manual. F ailure t o ser vice and ma ...

  • Hoshizaki KM-320MAH - page 3

    3 CONTENTS Impor tant Saf et y Inf or mation ................................................................................................. 6 I. Construction and W ater/R efrigeration Cir cuit Diagr am ....................................................... 8 A. Construction ....................................................................... ...

  • Hoshizaki KM-320MAH - page 4

    4 5. Bin Control Select or or Har vest P ump Timer Oper ation (S4 dip s witch 7) ............. 48 6. F actor y Use (S4 dip s witch 8) ................................................................................ 49 7 . F r eez e Timer (S4 dip s witch 9 & 1 0) ....................................................................... 49 8. Float ...

  • Hoshizaki KM-320MAH - page 5

    5 C . Wiring Diagrams ......................................................................................................... 87 1 . Diagr ams Without Harvest P ump Timer R ela ys ..................................................... 87 a) KM-320M_H, KM-51 5M_H, KM-600MAH ........................................................ 87 b) KM-650MAH, K ...

  • Hoshizaki KM-320MAH - page 6

    6 Impor tant Safety Inf ormation Throughout this man ual, notices appear t o bring your at tention t o situations which could result in death, serious injur y , damage t o the appliance, or damage t o proper t y . W ARNING Indicates a hazar dous situation which could r esult in death or serious injury . NO TICE Indicates a sit uation which could re ...

  • Hoshizaki KM-320MAH - page 7

    7 W ARNING, continued • The appliance is not intended f or use by per sons (including children) with r educed ph y sical, sensor y , or mental capabilities, or lac k of e xper ience and knowledge , unless they ha ve been giv en super vision or instr uction concerning use of the appliance by a per son responsib le f or their safety . • Children ...

  • Hoshizaki KM-320MAH - page 8

    8 I. Construction and W ater/R efrigeration Cir cuit Diagram A. Construction 1 . Air-Cooled Models (MAH) Ther mostatic Bin Contr ol W ater Suppl y Inlet Condenser Drier Contr ol Box Spra y T ubes Contr ol Switch W ater P ump Float S witch Compr essor Ther mostatic Expansion V alv e F an Motor Hot Gas V alv e Ther mostatic Bin C ontrol Brac k et &am ...

  • Hoshizaki KM-320MAH - page 9

    9 2. W at er -Cooled Models (MWH(-M)) W ater Suppl y Inlet Condenser Drier Contr ol Box Spra y T ubes Contr ol Switch W ater P ump Float S witch Compr essor Ther mostatic Expansion V alv e W ater R egulating Va l v e Hot Gas V alv e Cleaning V alv e Ther mostatic Bin Contr ol Ther mostatic Bin C ontrol Brac k et & Bulb Holder Mechanical Bin Con ...

  • Hoshizaki KM-320MAH - page 10

    10 3. Remot e Models (MRH/3) Receiv er T ank W ater Suppl y Inlet Junction Bo x es Drier Contr ol Box Spra y T ubes Contr ol Switch W ater P ump Float S witch Compr essor Ther mostatic Expansion V alv es Hot Gas V alv e Liquid Line V alv e Cleaning V alv e Ther mostatic Bin Contr ol Ther mostatic Bin C ontrol Brac k et & Bulb Holder Mechanical ...

  • Hoshizaki KM-320MAH - page 11

    11 W at er Supply Float Switch Drain Check V alv e Thermostatic Expansion V alve Compr essor Hot Gas Va l v e High-P ressure Switch Strainer Fa n Drier Condenser Evapor ator Discharge Line Suction Line W at er P ump Thermistor Spra y T ubes Inlet W ater V alv e F reeze P ump Out W at er T ank Refrigeration Cir cuit W at er Circuit Heat Ex changer L ...

  • Hoshizaki KM-320MAH - page 12

    12 W at er Supply Float Switch Drain Check V alv e Thermostatic Expansion V alve Compr essor Hot Gas Va l v e High-P ressure Switch Strainer Drier Condenser Evapor ator Discharge Line Suction Line W at er P ump Thermistor Spra y T ubes Inlet W ater V alv e F reeze P ump Out W at er T ank Refrigeration Cir cuit W at er Circuit Heat Ex changer Liquid ...

  • Hoshizaki KM-320MAH - page 13

    13 W at er Supply Cleaning V alv e Float Switch Drain Check V alv e Compr essor Hot Gas Va l v e Check V alv es (KM-90 1MRH) High-P ressure Switch Strainer Fa n Drier Condenser Evapor ator Discharge Line Suction Line W at er P ump Thermistor Spra y T ubes Inlet W ater V alv e F reeze P ump-Out W at er T ank Refrigeration Cir cuit W at er Circuit Li ...

  • Hoshizaki KM-320MAH - page 14

    14 II. Sequence of Operation and Service Diagnosis A. Sequence of Operation Flo w Char t 1 . "E" and "G" Control Boar d without Harvest P ump Timer Operation Components Energized when the Contr ol S witch is in the "W A SH" P osition The "W ASH" position on the control s witch is used when cleaning and saniti ...

  • Hoshizaki KM-320MAH - page 15

    15 1 . Bin F ull Shutdown Dela y: • Fill Cy c le –1 5 sec. af ter activ ation. • Harvest Cyc le –At the end of the har vest cy cle, or up t o 15 sec. into the freez e cy cle if activat ed at the end of the harvest cy cle. • F reeze Cycle –1 5 sec. after activ ation if activated at least 1 5 sec. bef ore the 5-min. shor t cycle pr otecti ...

  • Hoshizaki KM-320MAH - page 16

    16 2. "G" Control Boar d with Harvest P ump Timer Oper ation 1 to 3-min. harvest timer in control (S4 dip s witch 1 & 2) • Maximum inlet wat er v alv e time: 6 min. or the length of harvest minus 50 sec. (S4 dip switch 7), whiche v er is shor t er . • Maximum harvest time: 20 min. FS check Legend: Comp –compressor FM –fan mot ...

  • Hoshizaki KM-320MAH - page 17

    17 B. Service Diagnosis W ARNING • The appliance should be diagnosed and repair ed only b y quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . • Risk of electric shock. Contr ol s witch in "OFF" position does not de-energize all loads Use e xtr eme caution and e xer cise safe el ...

  • Hoshizaki KM-320MAH - page 18

    18 1 . "E" and "G" Control Boar d without Harvest P ump Timer Diagnosis 3) P ow er On : T ur n on the power suppl y , then mov e the control s witch to the "ICE" position. A 5-sec. delay occur s. • "E" Contr ol Board: CB red "PO WER OK" LED tur ns on. • "G" Contr ol Board: CB red " ...

  • Hoshizaki KM-320MAH - page 19

    19 4) 1 -Minut e F ill Cy c le – LED 4 is on. WV energiz es . Af ter 1 min., CB chec ks for a closed FS. If FS is closed, har v est cy cle begins. If har vest c y cle begins (Comp , HGV , and FMR energiz e), continue to st ep 5. If FS is open, WV r emains ener gized thr ough additional 1 -min. ll cy cles until water ent ers the w at er tank an ...

  • Hoshizaki KM-320MAH - page 20

    20 e) Initial Harvest Cy c le T ermination Diagnosis : W hen the ther mist or r eaches 48°F (9°C), CB reads 3.9 kΩ fr om the ther mistor and turns har vest t er mination ov er to the har v est timer (S4 dip s witch 1 & 2). Check dischar ge line temperatur e . For a ther mist or chec k, see "II.F .Ther mist or Chec k." If 1 -min. ...

  • Hoshizaki KM-320MAH - page 21

    21 d) PM Diagnosis : Conr m wat er is o wing ov er e v aporator fr om PM and not WV . If PM de-energiz es once freeze begins , check f or 1 1 5V AC at CB K1 #4 (R) t o neutral (W). If 1 1 5V A C is not present, r eplace CB . If 1 1 5V AC is pr esent and PM is de-energized, check f or 1 1 5V A C at control s witch #5 (R) to neutral (W). If 1 1 ...

  • Hoshizaki KM-320MAH - page 22

    22 7) Pump-Out Cy cle – LEDs 1, 3, and 2 are on (1 0/20 second pump-out). Timing of the rst pump-out is dependent on CB . "E" CB rst pump-out is af t er the r st fr eeze c y cle. "G" CB rst pump-out is det er mined by S4 dip s witch 5 & 6. See the tab le belo w . "E" & "G" Control Boar d ...

  • Hoshizaki KM-320MAH - page 23

    23 9) Shutdown a) "E" Control Boar d: Thermostatic Bin Contr ol (TBC): When the appliance is running , hold ice in contact with the thermostatic bulb . TBC switch opens within 1 0 sec., shut ting down the appliance. TBC is f act or y set, and generall y no adjustment is requir ed. Howe ver , adjustment ma y be needed in some conditions , ...

  • Hoshizaki KM-320MAH - page 24

    24 2. "G" Control Boar d with Harvest P ump Timer Diagnosis 3) P ow er On : T ur n on the power suppl y , then mov e the control s witch to the "ICE" position. A 5-sec. delay occur s. CB red "PO WER OK" LED and gr een "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on (indicating a full bin), ch ...

  • Hoshizaki KM-320MAH - page 25

    25 4) 1 -Min. Fill Cy c le – LED 4 is on. WV and X1 1 rela y ener giz e. Af ter 1 min., CB chec ks f or a closed FS. If FS is closed, the har v est cy cle begins. If har vest c y cle begins (Comp , HGV , FMR energiz ed), continue t o step 5a. If FS is open, WV r emains ener giz ed through additional 1 -min. ll cy cles until water ent ers the w ...

  • Hoshizaki KM-320MAH - page 26

    26 5b) Harvest P ump Timer – LEDs 1, 3, and 2 ar e on. When the thermistor r eaches 48°F (9°C), CB reads 3.9 kΩ fr om the ther mistor and turns har vest t er mination ov er to the har v est timer (S4 dip s witch 1 & 2). 50 sec. bef or e the har v est timer ter minat es , LED 3tur ns on and PM ener giz es. Comp , FMR, HGV , and X1 0 rela ...

  • Hoshizaki KM-320MAH - page 27

    27 6) F r eeze Cyc le – LED 1 is on. Comp , FMR, and PM continue . FM and LL V energiz e . HGV and X1 0 r ela y de-energize . Appliance is held in freez e b y a 5-min. shor t cy cle prot ection timer . Af t er 5-min. timer terminates and FS opens , fr eeze c y cle t er minat es . Note: PM power suppl y switches fr om CBK1 #5 (DBU) in har v ...

  • Hoshizaki KM-320MAH - page 28

    28 f) Refr ig er ant P r essur es, HM, and TXV Diagnosis : If ev aporator is still not cooling , check r efr igerant pr essures. See "VIII.B . P erformance Dat a." Ne xt, chec k HM operation. If r efrigeration pressur es are abov e HM setpoint and HMis bypassing , replace HM. Check TXV for pr oper operation. Remo ve TXV bulb and hold i ...

  • Hoshizaki KM-320MAH - page 29

    29 is complete . The pump-out frequency contr ol (S4 dip switch 5 & 6) is f actory set, and generall y no adjustment is r equir ed. Howe ver , the pump-out frequenc y control can be set to ha ve a pump-out occur e very cycle , or e very 2, 5, or 1 0 cycles . F or details , see "III.C .4. P ump-Out F r equency C ontr ol (S4 dip s witch 5 &a ...

  • Hoshizaki KM-320MAH - page 30

    30 C. Control Boar d Check Bef or e r eplacing CB that does not sho w a visib le def ect and that y ou suspect is bad, alw ay s conduct the follo wing chec k pr ocedur e. This procedur e will help you v erify your diagnosis. Alar m R eset: If CB is in alar m (beeping), press the "ALARM RESET" b ut ton on CB while CB is beeping. W ARNING!? ...

  • Hoshizaki KM-320MAH - page 31

    31 D . Bin Contr ol Check 1 . Thermostatic Bin Contr ol Check TBC shuts down the icemak er within 1 0 sec. when ice contacts the ther mostatic b ulb , reg ardless of the cy cle at activation. NO TICE When the ambient t emperature is belo w 45°F (7°C), TBC opens and shuts do wn the appliance e v en if the ice storage bin is empty . When BC is set ...

  • Hoshizaki KM-320MAH - page 32

    32 2. Mechanical Bin Control Chec k and Cleaning a) Mechanical Bin Contr ol Check This appliance uses a le v er -actuated pro ximit y s witch to contr ol the ice le vel in the stor age bin. No adjustment is requir ed. T o check TBC, f ollow the st eps below . 1) T ur n of f the power suppl y . 2) Remo ve the fr ont panel, then mo v e the contr ol s ...

  • Hoshizaki KM-320MAH - page 33

    33 b) Mechanical Bin Contr ol Cleaning Scale ma y b uild up on MBC . Scale can cause the actuator paddle and magnet t o stick. In this case, MBC should be cleaned. W ARNING CHOKING HAZARD: Ensure all components , fast eners, and thumbscr ews ar e securel y in place af t er the icemak er is ser viced. Make sur e that none ha v e fallen into the disp ...

  • Hoshizaki KM-320MAH - page 34

    34 E. Float S witch Chec k and Cleaning FS is used to det er mine that there is suf ficient w ater in the wat er tank af ter the 1 -min. ll c y cle and af ter each harvest cy cle. FS is also used to det er mine that the appr opriate v olume of wat er has been conv er ted int o ice befor e switching out of the fr eez e cy cle. No adjustment is re ...

  • Hoshizaki KM-320MAH - page 35

    35 2. Float Switc h Cleaning Depending on local wat er conditions, scale ma y b uild up on FS . Scale on the switch can cause the  oat t o stic k. In this case, FS should be cleaned. 1) T ur n of f the power suppl y . 2) Remo ve the fr ont panel, then mo v e the contr ol s witch to the "OFF" position. 3) Remo ve the base co v er , then ...

  • Hoshizaki KM-320MAH - page 36

    36 F . Thermist or Check T o check thermistor r esistance , f ollow the steps belo w . 1) T ur n of f the power suppl y . 2) Remo ve the fr ont panel. Mov e the contr ol s witch to the "OFF" position. 3) Remo ve the contr ol bo x cov er . 4) Remo ve the thermistor fr om the r efrigerant tubing. 5) Immerse the thermistor sensor por tion in ...

  • Hoshizaki KM-320MAH - page 37

    37 G. Diagnostic T ables 1 . No Ice Pr oduction No Ice Pr oduction - Possib le Cause 1. P ower Suppl y a) Of f, b lown fuse , or tripped break er . b) Not within specications. 2. Main T ransf ormer (3 phase and KM-650MWH-M only) (208/230V A C/1 1 5V AC) a) V oltage tap s witch not set t o pr oper v oltage . b) Coil winding open or shor t ed. 3. ...

  • Hoshizaki KM-320MAH - page 38

    38 No Ice Pr oduction - Possib le Cause 15 . Ther mist or See "II.F . Ther mistor Chec k" a) Loose, disconnect ed, or def ective. 16 . P ump Motor a) Motor winding open. b) Bearing wor n out or loc ked r otor . c) Def ectiv e capacitor . d) Mechanical seal worn out. 1 7. Thermostatic Expansion V alve a) Bulb loose. b) Operating erraticall ...

  • Hoshizaki KM-320MAH - page 39

    39 F reeze-Up - P ossible Cause 1 1. Thermostatic Expansion V alv e a) Def ectiv e. 12 . Hot Gas V alv e a) Closed or restricted. 13 . Liquid Line V alv e a) Open. F reeze Cyc le 1. Evapor at or a) Scaled up . b) D amaged. 2. Spra y T ubes and/or Spray Guides a) Dir ty . b) Out of position. 3. Refrigerant Charge a) L o w. 4. Control Boar d See &quo ...

  • Hoshizaki KM-320MAH - page 40

    40 Low Ice P r oduction - P ossible Cause Long F reeze Cyc le 1. Evapor at or a) Scaled up , dir ty . 2. Float Switch See "II.E. Float Switch Chec k and Cleaning" a) Scaled up , dir ty . b) Float sticking . c) Def ectiv e s witch. 3. Inlet W ater V alv e a) Leaking by . 4. Hot Gas V alv e a) Erratic or open. 5. Condenser a) Clogged. 6. Co ...

  • Hoshizaki KM-320MAH - page 41

    41 III. Controls and A djustments • A Hoshizaki e x clusive contr ol board is emplo yed in KM series appliances. • All models are pr etest ed and f actor y adjust ed. • F or a contr ol boar d chec k pr ocedur e, see "II.C . Control Boar d Check." NO TICE • F ragile, handle v er y carefull y . • The control boar d contains integ ...

  • Hoshizaki KM-320MAH - page 42

    42 A. Control Boar d L a y out 1 . "E" Control Boar d "E" Control Boar d P ar t Number 2A1 41 0-02 "E" Contr ol Boar d Micropr ocessor (control boar d r e vision le vel indicat ed on label on side of rela y) • P art Number • K1 Connector Pins #1 through #1 0 #1, 9 Magnetic Contact or or Compr essor Rela y #2 Hot Ga ...

  • Hoshizaki KM-320MAH - page 43

    43 "G" Control Boar d P ar t Number 2A3792-0 1 "G" Contr ol Boar d • K4 (red) Connect or Mechanical Bin Contr ol or K4 Jumper (thermostatic bin control application) Label (control boar d r e vision le vel indicat ed on label on side of rela y) • K1 Connector Pins #1 through #1 0 #1, 9 Magnetic Contact or or Compr essor Rela ...

  • Hoshizaki KM-320MAH - page 44

    44 B. LED Lights and A udible Alarm Saf eties 1 . "E" Control Boar d At star tup , a 5-second delay occur s while the control boar d conducts an internal timer check. A beep occur s when pow er is tur ned of f . The red "PO WER OK" LED indicates proper contr ol volt age and r emains on unless a control v oltage pr ob lem occur s ...

  • Hoshizaki KM-320MAH - page 45

    45 2. "G" Control Boar d At star tup , a 5-second delay occur s while the control boar d conducts an int er nal timer check. A beep occur s when the control s witch is mov ed to the "ICE" position. The red "PO WER OK" LED indicat es pr oper contr ol v oltage and r emains on unless a control v oltage pr oblem occur s. T ...

  • Hoshizaki KM-320MAH - page 46

    46 C. Set tings and Adjustments NO TICE Dip s witches ar e f actor y set. F ailure t o maintain f actory set tings ma y adver sel y af fect perf or mance and warr anty cov erage . F or mor e inf ormation, contact your Hoshizaki Ser vice Cent er . 1 . Default Dip Switch Set tings The dip s witches ar e f actor y -adjusted t o the follo wing position ...

  • Hoshizaki KM-320MAH - page 47

    47 2. Har v est Timer (S4 dip switc h 1 & 2) The har v est timer star ts counting when the thermistor r eaches 48°F (9°C) at the e v aporator outlet and the contr ol board reads 3.9 kΩ fr om the ther mistor . The har vest timer is f act or y set, and generall y no adjustment is requir ed. Howe ver , a set ting longer than the f act or y set ...

  • Hoshizaki KM-320MAH - page 48

    48 4. Pump-Out F requency Contr ol (S4 dip switch 5 & 6) NO TICE Do not adjust on KM-51 5M_H without har vest pump timer . Adjustments t o this set ting on KM-51 5M_H without har vest pump timer ma y adver sely af f ect perf or mance and warr anty cov erage . The pump-out frequenc y contr ol is f actor y set t o drain the w ater tank e very 1 0 ...

  • Hoshizaki KM-320MAH - page 49

    49 (2) Harvest P ump T imer , "G" Control Boar d NO TICE F actory set for pr oper operation. Do not adjust. Adjustment outside of the f actor y def ault set ting ma y r esult in damage t o the appliance. Depending on the har v est pump timer set ting, the pump mot or either sta ys of f or is energiz ed the last 50 seconds of har vest. Whe ...

  • Hoshizaki KM-320MAH - page 50

    50 8. Float Switc h Select or (S5 dip switc h 1): "G" Control Boar d NO TICE Do not adjust. This must be lef t in the f actor y def ault position or the icemaker will not operat e corr ectl y . 9. Re ll Counter (S5 dip switch 2 thr ough 5): "G" Contr ol Boar d NO TICE Do not adjust. These must be lef t in the f actor y def au ...

  • Hoshizaki KM-320MAH - page 51

    51 IV . R efr igeration Cir cuit and Component Ser vice Inf ormation W ARNING • This appliance should be diagnosed and repair ed only b y quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . • Mov e the control s witch to the "OFF" position and turn off the po wer supply . Place t ...

  • Hoshizaki KM-320MAH - page 52

    52 2. Brazing W ARNING • R-404A itself is not  ammab le at atmospheric pressur e and temperatur es up t o 1 7 6°F (80°C). • R-404A itself is not e xplosiv e or poisonous. Howe ver , when exposed t o high temper atur es (open  ames), R-404A can be decomposed to f or m hy drouoric acid and carbonyl uoride both of which are hazar dou ...

  • Hoshizaki KM-320MAH - page 53

    53 5) Disconnect the gauge manif old hose from the v acuum pump and at tach it t o a refrigerant service cylinder . Remember t o loosen the connection and purge the air fr om the hose. F or the r equir ed r efrigerant charge , see the rating label inside the icemaker . Hoshizaki recommends onl y virgin r efrigerant or r eclaimed refrigerant which m ...

  • Hoshizaki KM-320MAH - page 54

    54 B. Component Service Infor mation NO TICE When r eplacing a component listed belo w , see the notes t o help ensur e pr oper operation. Component Notes Compr essor 1 phase: Install a ne w star t capacitor , run capacitor , and star t rela y . 3 phase: Install a new magnetic cont actor . Thermostatic Expansion V alves • At tach the thermostatic ...

  • Hoshizaki KM-320MAH - page 55

    55 V . Maint enance The maintenance schedule belo w is a guideline. More fr equent maintenance ma y be requir ed depending on wat er quality , the appliance's en vir onment, and local sanitation regulations W ARNING • Only quali ed ser vice technicians should service the appliance. • T o reduce the risk of electr ic shoc k, do not t ouc ...

  • Hoshizaki KM-320MAH - page 56

    56 VI. Pr eparing the Appliance for P eriods of Non-Use NO TICE • When st oring the appliance f or an e xt ended time or in sub-fr eezing t emperatur es, f ollo w the instructions below t o pr e v ent damage. • T o pre vent damage t o the w at er pump , do not operate the appliance with the control s witch in the "W ASH" position when ...

  • Hoshizaki KM-320MAH - page 57

    57 3. On wat er -cooled model, remo v e the w ater fr om the wat er -cooled condenser: 1) Make sur e the power suppl y is off , then remo ve the fr ont panel and right side panel. 2) Close the condenser wat er supply line shut-of f val ve . If connected t o a closed loop sy stem, also close the condenser r eturn line shut-of f v al v e . 3) Open th ...

  • Hoshizaki KM-320MAH - page 58

    58 VII. Disposal The appliance contains r efrigerant and must be disposed of in accor dance with applicable national, st at e , and local codes and r egulations. Refrigerant m ust be reco ver ed b y pr operly cer ti ed ser vice personnel. ...

  • Hoshizaki KM-320MAH - page 59

    59 VIII. T echnical Infor mation A. Specication Sheets 1 . KM-320MAH AC SUPPLY VOLTAG E 115/60/1 AMPERAGE 9.7 A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *325 (147) 311 (141) 287 (130) ...

  • Hoshizaki KM-320MAH - page 60

    60 2. KM-320MWH AC SUPPLY VOLTAG E 115/60/1 AMPERAGE 8.2 A (5 Min. Freeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *352 (160) 348 (158) 324 (147) Referenc e without *mark s 80 349 (158) 342 (155) 309 ( ...

  • Hoshizaki KM-320MAH - page 61

    61 3. KM-51 5MAH AC SUPPLY VOLTAG E 115/60/1 AMPERAGE 11.7 A (5 Min. F reeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *501 (227) 482 (218) 447 (203) Referenc e without *mark s 80 486 (221) 456 (207) 416 ...

  • Hoshizaki KM-320MAH - page 62

    62 4. KM-51 5MWH AC SUPPLY VOLTAG E 115/60/1 AMPERAGE 9.6 A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *500 (227) 481 (218) 465 (211) Referenc e without *mark s 80 486 (220) 457 (207) 445 ( ...

  • Hoshizaki KM-320MAH - page 63

    63 5. KM-51 5MRH AC SUPPLY VOLTAG E 115/60/1 AMPERAGE 11.3A (5 Min. F reeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *491 (223) 480 (218) 443 (201) Referenc e without *mark s 80 482 (219) 465 (211) 417 ( ...

  • Hoshizaki KM-320MAH - page 64

    64 6. KM-60 0MAH AC SUPPLY VOLTAGE 115- 120/60/1 AMPERAGE 12.0 A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 15 A MAXIMUM FUSE SIZE 15 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *592 (269) 566 (257) 516 (234) Referenc e without *mark s 80 572 (260) 532 (241) ...

  • Hoshizaki KM-320MAH - page 65

    65 7 . KM-650MAH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 7.2 A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 15 A MAXIMUM FUSE SIZE 15 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *661 (300) 632 (287) 591 (268) Referenc e without *mark s 80 639 ...

  • Hoshizaki KM-320MAH - page 66

    66 8. KM-650MWH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 5.4 A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 15 A MAXIMUM FUSE SIZE 15 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *661 (300) 649 (294) 616 (280) Referenc e without *mark s 80 652 ( ...

  • Hoshizaki KM-320MAH - page 67

    67 A W AITING D A T A 9. KM-650MWH-M Note: We r eserve the right to mak e changes in specications and design without prior notice. ...

  • Hoshizaki KM-320MAH - page 68

    68 1 0. KM-650MRH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 7.4 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *632 (287) 612 (278) 574 (260) Reference without *marks 80 617 (280) 586 ...

  • Hoshizaki KM-320MAH - page 69

    69 1 1 . KM-90 1MAH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 11.4 A (5 Min. F reeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *874 (396) 832 (378) 785 (356) Referenc e without *mark s 80 ...

  • Hoshizaki KM-320MAH - page 70

    70 1 2. KM-90 1MWH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 8.7A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 15 A MAXIMUM FUSE SIZE 15 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *912 (414) 887 (402) 849 (385) Referenc e without *mark s 80 893 ...

  • Hoshizaki KM-320MAH - page 71

    71 1 3. KM-90 1MRH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire for 115V) AMPERAGE 11.6A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *889 (403) 859 (389) 803 (364) Referenc e without *mark s 80 86 ...

  • Hoshizaki KM-320MAH - page 72

    72 1 4. KM-90 1MRH3 AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 7.0A (5 Min. Freeze AT 104°F /W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A APPROXIMAT E ICE PRODUCTIO N Am bient W AT ER TEMP. (°F) PER 24 HR. Tem p.(°F) 50 70 90 lbs./day ( kg/day ) 70 *899 (408) 874 (397) 817 (371) Referenc e without *mark s 80 880 (399) 842 (382) ...

  • Hoshizaki KM-320MAH - page 73

    73 B. P erf ormance Data 1 . KM-320MAH 70/21 325 147 311 141 287 130 80/27 315 143 293 133 265 120 90/32 311 141 278 126 251 114 lbs./day kg./da y 100/38 304 138 272 123 226 103 70/21 80/27 90/32 watts 100/38 70/21 117 0.44 97 0.37 86 0.33 80/27 102 0.39 72 0.27 69 0.26 90/32 97 0.37 51 0.19 44 0.17 gal./day m 3 /day 100/38 75 0.28 50 0.19 38 0.14 ...

  • Hoshizaki KM-320MAH - page 74

    74 2. KM-320MWH 70/21 352 160 348 158 324 147 80/27 349 158 342 155 309 140 90/32 348 158 337 153 308 140 lbs./day kg./da y 100/38 337 153 330 150 281 127 70/21 80/27 90/32 watts 100/38 70/21 430 1.63 476 1.80 682 2.58 80/27 465 1.76 535 2.03 822 3.11 90/32 476 1.80 585 2.21 842 3.19 gal./day m 3 /day 100/38 605 2.29 645 2.44 1078 4.08 70/21 80/27 ...

  • Hoshizaki KM-320MAH - page 75

    75 3. KM-51 5MAH 70/21 501 227 482 218 447 203 80/27 486 221 456 207 416 189 90/32 482 218 435 197 396 180 lbs./day kg./day 100/38 472 214 426 193 361 164 70/21 80/27 90/32 watts 100/38 70/21 188 0.71 162 0.61 147 0.56 80/27 168 0.64 128 0.48 124 0.47 90/32 162 0.61 99 0.38 90 0.34 gal./day m 3 /day 100/38 132 0.50 97 0.37 82 0.31 70/21 80/27 90/32 ...

  • Hoshizaki KM-320MAH - page 76

    76 4. KM-51 5MWH 70/21 500 227 481 218 465 211 80/27 486 220 457 207 445 202 90/32 481 218 436 198 422 191 lbs./day kg./da y 100/38 481 218 433 196 409 186 70/21 80/27 90/32 watts 100/38 70/21 515 1.95 548 2.07 805 3.05 80/27 540 2.04 591 2.24 966 3.6 6 90/32 548 2.07 628 2.38 958 3.63 gal./day m 3 /day 100/38 688 2.60 705 2.67 1262 4.78 70/21 80/2 ...

  • Hoshizaki KM-320MAH - page 77

    77 5. KM-51 5MRH 70/21 491 223 480 218 443 201 80/27 482 219 465 211 417 189 90/32 480 218 452 205 408 185 lbs./day kg./da y 100/38 465 211 442 200 368 167 70/21 80/27 90/32 watts 100/38 70/21 198 0.75 168 0.64 153 0.58 80/27 175 0.66 128 0.48 128 0.49 90/32 168 0.64 94 0.36 88 0.33 gal./day m 3 /day 100/38 133 0.50 93 0.35 82 0.31 70/21 80/27 90/3 ...

  • Hoshizaki KM-320MAH - page 78

    78 6. KM-60 0MAH 70/21 592 269 566 257 516 234 80/27 572 260 532 241 474 215 90/32 566 257 503 228 447 203 lbs./day kg./da y 100/38 551 250 490 222 396 180 70/21 80/27 90/32 watts 100/38 70/21 259 0.98 212 0.80 191 0.72 80/27 223 0.84 150 0.57 154 0.58 90/32 212 0.80 99 0.38 92 0.35 gal./day m 3 /day 100/38 160 0.61 97 0.37 85 0.32 70/21 80/27 90/3 ...

  • Hoshizaki KM-320MAH - page 79

    79 7 . KM-650MAH 70/21 661 300 632 287 591 268 80/27 639 290 594 269 553 251 90/32 632 287 562 255 520 236 lbs./day kg./da y 100/38 624 283 552 250 482 219 70/21 80/27 90/32 watts 100/38 70/21 232 0.88 194 0.73 172 0. 65 80/27 203 0.77 143 0.54 139 0.53 90/32 194 0.73 101 0.38 89 0.34 gal./day m 3 /day 100/38 149 0.56 98 0.37 78 0.30 70/21 80/27 90 ...

  • Hoshizaki KM-320MAH - page 80

    80 8. KM-650MWH 70/21 661 300 649 294 616 280 80/27 652 296 633 287 591 268 90/32 649 294 620 281 581 264 lbs./day kg./da y 100/38 637 289 611 277 546 248 70/21 80/27 90/32 watts 100/38 70/21 744 2.81 784 2.97 1169 4.42 80/27 775 2.93 838 3.17 1405 5.32 90/32 784 2.97 882 3.34 1380 5.22 gal./day m 3 /day 100/38 985 3.73 999 3.78 1838 6.96 70/21 80/ ...

  • Hoshizaki KM-320MAH - page 81

    81 9. KM-650MWH-M A W AITING D A T A Note: 1 . P r essure dat a is r ecor ded at 5 min. into fr eezing cy cle. The data not in bold should be used f or r ef erence onl y . 2. W e reser v e the right to mak e changes in specications and design without prior notice. ...

  • Hoshizaki KM-320MAH - page 82

    82 1 0. KM-650MRH 70/21 632 287 612 278 574 260 80/27 617 280 586 266 541 246 90/32 612 278 564 256 521 236 lbs./day kg./day 100/38 601 272 554 251 482 219 70/21 80/27 90/32 watts 100/38 70/21 267 1.01 216 0.82 195 0.74 80/27 228 0.86 149 0.56 155 0.59 90/32 216 0.82 93 0.35 88 0.33 gal./day m 3 /day 100/38 160 0.61 92 0.35 82 0.31 70/21 80/27 90/3 ...

  • Hoshizaki KM-320MAH - page 83

    83 1 1 . KM-90 1MAH 70/21 874 396 832 378 785 356 80/27 842 382 778 353 736 334 90/32 832 378 732 332 687 312 lbs./day kg./day 100/38 826 375 721 327 646 293 70/21 80/27 90/32 watts 100/38 70/21 240 0.91 212 0.80 187 0.71 80/27 219 0.83 175 0.66 158 0.60 90/32 212 0.80 143 0.54 123 0.46 gal./day m 3 /day 100/38 175 0.66 139 0.52 103 0.39 70/21 80/2 ...

  • Hoshizaki KM-320MAH - page 84

    84 1 2. KM-90 1MWH 70/21 912 414 887 402 849 385 80/27 893 405 854 388 815 370 90/32 887 402 827 375 787 357 lbs./day kg./da y 100/38 878 398 818 371 751 341 70/21 80/27 90/32 watts 100/38 70/21 876 3.32 1010 3.82 1530 5.79 80/27 978 3.70 1186 4.49 1893 7.17 90/32 1010 3.82 1332 5.04 1971 7.46 gal./day m 3 /day 100/38 1355 5.13 1482 5.61 2 559 9.69 ...

  • Hoshizaki KM-320MAH - page 85

    85 1 3. KM-90 1MRH 70/21 889 403 859 389 803 364 80/27 866 393 818 371 755 343 90/32 859 389 785 356 724 328 lbs./day kg./da y 100/38 843 382 771 350 668 303 70/21 80/27 90/32 watts 100/38 70/21 246 0.93 219 0.83 194 0.74 80/27 225 0.85 182 0.69 165 0.63 90/32 219 0.83 152 0.57 131 0.50 gal./day m 3 /day 100/38 182 0.69 147 0.56 112 0.42 70/21 80/2 ...

  • Hoshizaki KM-320MAH - page 86

    86 1 4. KM-90 1MRH3 70/21 899 408 874 397 817 371 80/27 880 399 842 382 772 350 90/32 874 397 815 370 749 340 lbs./day kg./da y 100/38 855 388 800 363 689 313 70/21 80/27 90/32 watts 100/38 70/21 254 0.96 222 0.84 203 0.77 80/27 230 0.87 181 0.69 174 0.66 90/32 222 0.84 147 0.56 134 0.51 gal./day m 3 /day 100/38 185 0.70 144 0.54 123 0.46 70/21 80/ ...

  • Hoshizaki KM-320MAH - page 87

    87 C. W iring Diagrams 1 . Diagrams Without Harv est Pump Timer Rela y s a) KM-320M_H, KM-51 5M_H, KM-60 0MAH * High-P ressur e S witch Air -Cooled Model W ater -Cooled Model Cut-out 41 2± 22 PSIG 384± 22 PSIG Cut-in 327±22 PSIG 284±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V 0 ...

  • Hoshizaki KM-320MAH - page 88

    88 b) KM-650MAH, KM-650MWH, KM-90 1MAH, KM-90 1MWH * Contr ol T ransf or mer Output 1 0.5V at 1 15V * High-P ressur e S witch Air -Cooled Model W ater -Cooled Model Cut-out 41 2± 22 PSIG 384± 22 PSIG Cut-in 327±22 PSIG 284±22 PSIG 0 0 ...

  • Hoshizaki KM-320MAH - page 89

    89 c) KM-650MRH, KM-90 1MRH * High-P ressur e S witch Cut-out 41 2± 22 PSIG Cut-in 327±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V ...

  • Hoshizaki KM-320MAH - page 90

    90 d) KM-90 1MRH3 * High-P ressur e S witch Cut-out 41 2± 22 PSIG Cut-in 327±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V ...

  • Hoshizaki KM-320MAH - page 91

    91 2. Diagrams With Harv est P ump Timer Rela ys a) KM-51 5MAH * High-P ressur e S witch Cut-out 41 2± 22 PSIG Cut-in 327±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V ...

  • Hoshizaki KM-320MAH - page 92

    92 b) KM-650MAH, KM-650MWH, KM-90 1MAH * High-P ressur e S witch Air -Cooled Model W ater -Cooled Model Cut-out 41 2± 22 PSIG 384± 22 PSIG Cut-in 327±22 PSIG 284±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V 0 ...

  • Hoshizaki KM-320MAH - page 93

    93 c) KM-650MWH-M * High-P ressur e S witch Cut-out 384± 22 PSIG Cut-in 284±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V ...

  • Hoshizaki KM-320MAH - page 94

    94 * High-P ressur e S witch Cut-out 41 2± 22 PSIG Cut-in 327±22 PSIG 0 * Contr ol T ransf or mer Output 1 0.5V at 1 15V d) KM-650MRH ...

Manufacturer Hoshizaki Category Ice Maker

Documents that we receive from a manufacturer of a Hoshizaki KM-320MAH can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Hoshizaki KM-320MAH.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Hoshizaki KM-320MAH, service manual, brief instructions and user manuals Hoshizaki KM-320MAH. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Hoshizaki KM-320MAH.

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A complete manual for the device Hoshizaki KM-320MAH, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Hoshizaki KM-320MAH by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Hoshizaki KM-320MAH.

A complete Hoshizaki manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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3. Tips how to use the basic functions of the device Hoshizaki KM-320MAH - which should help us in our first steps of using Hoshizaki KM-320MAH
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5. FAQ - Frequently Asked Questions
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