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Manual de instrucciones Hoshizaki 73183

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Summary
  • Hoshizaki 73183 - page 1

    Hoshizaki “A Superior Degr ee of Reliability” www .hoshizaki.com Models Reach-In B-Series Commercial Series Refrigerated Kitchen Equipment Hoshizaki America, Inc. Number: 73183 Issued: 3-23-2011 SE RV ICE MA NU AL ...

  • Hoshizaki 73183 - page 2

    2 IMPOR T ANT Only quali ed ser vice technicians should inst all, ser vice , and maintain the unit. No ser vice or maint enance should be under tak en until the t echnician has thoroughl y read this Ser vice Manual. F ailure t o ser vice and maintain the equipment in accordance with this man ual ma y adver sely af fect saf et y , perf ormance, c ...

  • Hoshizaki 73183 - page 3

    3 CONTENTS Impor tant Saf et y Inf or mation ................................................................................................. 5 I. Specications ...................................................................................................................... 7 A. Nameplate Ratings ............................................ ...

  • Hoshizaki 73183 - page 4

    4 D . Diagnostic Char t ......................................................................................................... 35 1 . Unit Not Cooling ..................................................................................................... 35 2. Evaporat or is F r ozen Up ............................................................. ...

  • Hoshizaki 73183 - page 5

    5 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 , or damage to the unit. W ARNING Indicates a hazardous sit uation which could result in death or serious injury . C A UTION Indicates a sit uation which could result in dama ge to the unit. ...

  • Hoshizaki 73183 - page 6

    6 •Makesur ethepowers witchisinthe"OFF"positionbefor eplugginginor unplugging the unit to r educe the r isk of electric shock. •Donotuseaunitwithadamagedpow ercor d.  Thepowercor dshouldnotbe alter ed, jer k ed, b undled, weighed do wn, pin ...

  • Hoshizaki 73183 - page 7

    7 I. Specications A. Nameplate Ratings Model A C Supply V oltage Amperes Design Pr essur e (PSIG) Refr igerant (oz.) HIGH LOW 1 34a 404A CR1B-FS/HS 1 1 5/60/1 4 240 12 0 11 - CF1B-FS/HS 9 450 250 - 8 CR2B-FS/HS 7 240 12 0 12 - CF2B-FS/HS 11 450 250 - 17 CR3B-FS/HS 1 1 5/60/1 9 240 12 0 1 -Section 11 - 2-Section 12 CF3B-FS/HS 208-230/1 1 5/60/1 1 ...

  • Hoshizaki 73183 - page 8

    8 2. One Section/T wo Section/Thr ee Section Unit: mm (in.) Ad ditional Dimensions Model Inter ior Width Inter ior Height Inter ior Depth Door Stay Open P osition Caster Height (Standard) Caster Height (Option) Leg Height (Option) One Section 579 (22.8) 1 51 3.6 (59.59) 71 1 .2 (28) 80° 1 0 1. 6 (4) 1 52.4 (6) 1 53±28.6 (6.02±1 .1 3) Tw o Sectio ...

  • Hoshizaki 73183 - page 9

    9 II. General Inf ormation A. Construction 1 . One Section Contr ol Module Condenser F an Motor Condenser Displa y Module F ront P anel Door Door Gasket Contr ol Bo x P ower S witch Door Lock Models CR1B-FS/HS and CF1B-FS/HS Model Shown: CR1B-FS Light Compr essor Condensat e P ump Reservoir Float Switch f or Condensat e P ump P ower C ord Door S wi ...

  • Hoshizaki 73183 - page 10

    10 2. T wo Section Models CR2B-FS/HS and CF2B-FS/HS Model Shown: CR2B-HS P ower C ord Compr essor Condenser F an Motor Condenser F ront P anel Contr ol Module Displa y Module P ower S witch Door Lock Light Reservoir Float Switch Reservoir Cover Door Door Gasket Contr ol Bo x Door Switch Door S witch Door Latch •Ev aporat or •C abinet T ...

  • Hoshizaki 73183 - page 11

    11 3. Three Section Compr essor Condenser F an Motor F ront P anel Contr ol Module Displa y Module P ower S witch Door Lock Light Reservoir Float S witch Reservoir Cover Door Door Gasket Contr ol Bo x Door S witch •Ev aporat or •C abinet Ther mistor •Defrost Thermistor •Ev aporat orF anShroud Ther mostatic Expansion ...

  • Hoshizaki 73183 - page 12

    12 B. Sequence of Operation 1 . Sequence Cy c les and Shutdo wn The steps in the sequence ar e as outlined below . Note: 1 . There is a slight dela y at star tup. 2. W hen power is turned on, the 2-hour high-temperatur e alar m timer is bypassed. Theref ore , a high-temperatur e alarm can occur at star tup . T o silence the alar m, press and r elea ...

  • Hoshizaki 73183 - page 13

    13 b) F r eez er 1 . Startup/Cool Down MH and PH energiz e. Ther e is a slight dela y befor e cabinet t emperatur e or high-temper atur e alarm (Hi) appears on DM and Comp , ConFM, and Ev apFM energiz e. 2. Cool D o wn Ac hie ved CM monitor s cooling of the cabinet via CTh. CTh cools to 3 ° F (1 .7 ° C) below setpoint. Ev apFM, MH, and PH continu ...

  • Hoshizaki 73183 - page 14

    14 2. Sequence Flow Charts a) Refr iger at or Refr ig er at or Sequence Flow Chart Legend: Comp -compressor ConFM -condenser f an motor CTh -cabinet thermistor DTh- defrost thermistor EvapFM -e vaporat or f an mot or MH -mullion heat er 1 . Startup/Cool Do wn 2. Cool Down Achiev ed Comp energiz ed ConFM energiz ed EvapFM ener gized MH energiz ed CT ...

  • Hoshizaki 73183 - page 15

    15 b) F r eez er F r eezer Sequence Flow Chart 3. Cool Down Restart Legend: Comp -compressor ConFM -condenser f an motor CTh -cabinet thermistor DH -defrost heat er DTh- defrost thermistor EvapFM -e vaporat or f an mot or MH -mullion heat er PH -perimeter heater 1 . Startup/Cool Do wn 2. Cool Down Achiev ed Comp energiz ed ConFM energiz ed EvapFM e ...

  • Hoshizaki 73183 - page 16

    16 C. Display Module Whenthepo wers witchismov edtothe"ON"positionther eisaslightdela y ,thenthe current cabinet t emperature is displa yed. F rom the displa y module, the cabinet setpoint andtemper atur edispla yscalecanbechanged. F orfur therdetails,see& ...

  • Hoshizaki 73183 - page 17

    17 2. Controls and A djustments a) Default Set tings 1 . T emperatur e Set ting: Refrigerat or : 36°F (2°C). F reez er : -4°F (-20°C). 2. T emperatur e Displa y Scale: F . b) T emperat ur e Setpoint The temper atur e setpoint is the v alue for the a v erage cabinet temper atur e. The temper atur e dif f er ential f or the compressor t o tur n o ...

  • Hoshizaki 73183 - page 18

    18 Displa y C able F ig. 2 D . Contr ol Module All models are pr etest ed and f actor y set . C A UTION 1 . The control module is fr agile, handle v er y carefull y . 2. Do not change wir ing and connections. Ne v er misconnect t erminals. 3. Do not shor t out pow er suppl y t o t est f or voltage . 1 . Contr ol Module Lay out F reezer Control Modu ...

  • Hoshizaki 73183 - page 19

    19 2. Alarm Safeties Alar m signals ar e designed t o pr ot ect the unit and f ood product. These alarms give inf ormation or war nings in the e vent the unit is operating out of accept ab le paramet ers. Should one of the alar ms occur , f ollow the instructions in the table belo w t o addr ess the alar m. The alar m code  ashes once e v er y s ...

  • Hoshizaki 73183 - page 20

    20 E. Compressor O ver load, Short Cyc le Pr ot ection, and High-Pr essure S witch 1 . Compr essor Ext ernal or Int ernal Ov erload If combined temper atur e/amperage v alue is abov e the limit speci ed by the compressor man uf acturer , the compr essor ov er load operat es independently t o turn of f the compressor . The compressor ov er load d ...

  • Hoshizaki 73183 - page 21

    21 III. T echnical Data A. Refr ig er ation Cir cuit Ev aporat or F ans (2 or 3 depending on model) Ev aporat or Expansion V al v e Compr essor Low -Side Access Va l v e Condensat e P an High-P ressur e S witch Drier Condenser F an Condenser Defrost Ther mist or Defrost Heat er and Defrost Thermostat (freez er onl y) Cabinet Thermistor High-Side Ac ...

  • Hoshizaki 73183 - page 22

    22 B. W iring Diagr ams 1 . CR1B-FS/HS, CR3B-FS/HS * High-Pr essure Switc h Cut-out 270±1 0 PSIG Cut-in 1 90±20 PSIG * ...

  • Hoshizaki 73183 - page 23

    23 2. CR2B-FS/HS, CR3B-FS/HS * High-Pr essure Switc h Cut-out 270±1 0 PSIG Cut-in 1 90±20 PSIG * ...

  • Hoshizaki 73183 - page 24

    24 3. CF1B-FS/HS, CF3B-FS/HS ** Defr ost Thermostat Cut-out 12 0 ° F±5 ° F (49 ° C±3 ° C) Cut-in 70 ° F±5 ° F (21 ° C±3 ° C) * High-Pr essure Switc h Cut-out 490±1 0 PSIG Cut-in 370±20 PSIG * ** ...

  • Hoshizaki 73183 - page 25

    25 4. CF2B-FS/HS, CF3B-FS/HS ** Defr ost Thermostat Cut-out 12 0 ° F±5 ° F (49 ° C±3 ° C) Cut-in 70 ° F±5 ° F (21 ° C±3 ° C) * High-Pr essure Switc h Cut-out 490±1 0 PSIG Cut-in 370±20 PSIG * ** ...

  • Hoshizaki 73183 - page 26

    26 5. CR3B-FS/HS Receptac le Bo x Connection 6. CF3B-FS/HS Receptac le Bo x Connection Note: Only the t op r eceptacles ha ve po wer . Note: Only the t op r eceptacles ha ve po wer . ...

  • Hoshizaki 73183 - page 27

    27 IV . Service Diagnosis W ARNING 1 . This unit should be diagnosed and repair ed only by quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . 2. Risk of electr ic shock. Use e xtr eme caution and e xer cise safe electrical practices . 3. Moving par ts (e.g ., f an b lade) can crush and cut. K ...

  • Hoshizaki 73183 - page 28

    28 1 . R efr igerat or 7) Startup/Cool Down– Ev apFM and MH energiz e . Ther e is a slight dela y , then Comp and ConFM ener gize and cabinet temper atur e or high-t emperatur e alar m (Hi) appears on DM. a) StartupDiagnosis: Chec k that Ev apFM ener gize . If not, conr m that the door(s) are closed and DS contacts ar e closed. Check Ev apF ...

  • Hoshizaki 73183 - page 29

    29 8) Cool Down Ac hie ved –CTh cools t o 3°F (1 .7°C) below setpoint. Ev apFM and MH continue . Comp and ConFM de-ener gize. Diagnosis: If Comp and C onFM do not de-energiz e,conr mCThstatus . See"IV .C .  Ther mistorChec k."IfCThohmreading is in range and C omp and ConFM do not de-ener gize, CM ...

  • Hoshizaki 73183 - page 30

    30 2. F reezer 7) Startup/Cool Down– MH and PH ener gize. There is a slight dela y , then Comp , ConFM, and Ev apFM ener gize and cabinet t emperature or high-t emperature alarm (Hi) appears on DM. Once DTh reaches 32 ° F (0 ° C), 4-hourComp cum ulativ e run timer star ts. a) Startup Diagnosis: Chec k that EvapFM ener giz e. If not, conr ...

  • Hoshizaki 73183 - page 31

    31 c) HPS Activ ation: Conr m C onFM is ener gized and f an blade turns freel y . Check that the condenser coil is not clogged or restrict ed. Check that ther e ar e no r estrictions in the refrigeration cir cuit (dr ier , TXV). Conrm that the location meets fact or y requir ements: • Thisunitisnotintendedf oroutdoor ...

  • Hoshizaki 73183 - page 32

    32 Defrost T ermination: Has DTh w ar med to 59°F (1 5°C)? If not yet conrmed, conr m DThstatus . See"IV .C .  Ther mistorChec k."IfDThisgoodbutdefrostt er mination temper atur e is not r eached, conrm DH amp draw and contin uity . If DTh is good and defrost t er mination temper atur e is ...

  • Hoshizaki 73183 - page 33

    33 B. Control Module Chec k Bef or e r eplacing a contr ol module that does not sho w a visible def ect and that you suspect is bad, alw ay s conduct the follo wing chec k pr ocedur e. This procedur e will help you v er ify y our diagnosis . Alwa ys choose a whit e (W) neutral wire t o estab lish a good neutral connection when chec king high v olta ...

  • Hoshizaki 73183 - page 34

    34 "IV .A.2.9)Defrost"and"IV .C .  Ther mistorChec k."Ifcomponentsfailt ostar t,control module must be r eplaced. C. Thermist or Chec k In the e v ent the cabinet ther mistor r eading is out of range (E1 alarm), the compressor operat es on a x ed time basis of 5-minutes on and 5-min ut es o ...

  • Hoshizaki 73183 - page 35

    35 D . Diagnostic Chart Bef or e consulting the diagnostic char ts, chec k the follo wing: •Checkthesetpoint. F orf actor ydef aultset tings,see"II.C .2.a)Def aultSet tings." •Makesur ethedoorsar enotlef topenoropenedtooof t enandthatthe yaresealing ...

  • Hoshizaki 73183 - page 36

    36 Unit Not Cooling - P ossible Cause 1 1. Compr essor Overload a) Dir ty condenser . b) Condenser f an not operating. c) Def ective . 12 . Compr essor a) Def ectiv e. 13 . Condenser a) Dirt y . 14 . Ev aporat or See"2. Evaporat orisFr ozenUp ." a) Clogged or froz en. 15 . Refrigerant/R efrigerant Lines a) Gas leak. b) Refr ...

  • Hoshizaki 73183 - page 37

    37 V . R eplacement of Components W ARNING 1 . This unit should be diagnosed and repair ed only by quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . 2. Movethepo wers witcht othe"OFF"position,thenunplugtheunitfromthe electrical outlet be ...

  • Hoshizaki 73183 - page 38

    38 2. Brazing W ARNING 1 . R-1 34a and R-404A themselv es ar e not  ammable at atmospheric pressur e and temper atur es up t o 1 7 6°F (80°C). 2. R-134a and R-404A themsel ves ar e not explosiv e or poisonous. Ho we ver , when e xposed t o high t emperatur es (open ames), R-1 34a and R-404A can be decomposed to f or m h ydr ouoric acid a ...

  • Hoshizaki 73183 - page 39

    39 4) Close the low -side val v e and high-side val v e on the g auge manif old. 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. See the nameplate f or the requir ed refrigerant charge . Hoshizaki recommends only vir ...

  • Hoshizaki 73183 - page 40

    40 B. Impor tant Not es f or Component R eplacement C A UTION When r eplacing a component listed belo w , see the notes t o help ensure pr oper operation. Component Notes Compr essor Install a ne w star t r ela y , star t capacitor , and compressor o v erload (compressor o v erload is integ rat ed with the start rela y on refrigerat ors; internal o ...

  • Hoshizaki 73183 - page 41

    41 VI. Cleaning and Maint enance Instructions A. Cleaning W ARNING 1 . Bef or ecleaningtheunit,mov ethepowers witchtothe"OFF"positionand unplug the unit to pr ev ent electr ic shoc k b y une xpected entrance of w at er into the unit or injury by mo ving par ts. 2. Befor e cleaning the unit, mo v e ...

  • Hoshizaki 73183 - page 42

    42 C. Shutdown and Long St orage W ARNING 1 . When pr eparing the unit for long st orage, pr e vent the door s fr om closing t o reduce the risk of childr en get ting trapped. 2. T o reduce the risk of electric shock, do not t ouch the at tachment plug or pow er s witch with damp hands. 3. 1 1 5V Units: T o unplug the unit, be sure t o pull the plu ...

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