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ROX-10WB-E - Hoshizaki

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2. 20 1 ERROR CODES 20 2 SERVICE DIAGNOSIS nn nn 20 3 FLOW RATE ADJUSTMENT 22 4 REMOVAL AND REPLACEMENT OF COMPONENTS m 23 CONTROL BOX 23 b ELECTROLYTIC CELL 23 In the context of this manual the term sanitizing water refers to acidic water and cleaning water refers to alkaline water GENERAL INFORMATION 1 SAFETY INSTRUCTIONS The following instructions contain important safety precautions and should be strictly observed The terms used here are defined as follows WARNING There is a possibility of death or serious injury to the service person and a third party or the user due to improper service operations or defects in serviced products CAUTION There is a possibility of injury to the service person and a third party or the user or damage to their property due to improper service operations or defects in serviced products The term damage to their property here refers to extensive damage to household effects houses and pets WARNING 1 When there is no need to energize the unit during disassembly or cleaning be sure to unplug the unit or disconnect the main power supply before servicing the u
3. HOSHIZAKI WATER ELECTROLYZER MODEL ROX 10WB E SERVICE MANUAL CONTENTS PAGE GENERAL INFORMATION 1 1 SAFETY INSTRUCTIONS nn 1 2 PRODUCT INFORMATION 3 al FEATURES 3 b MODEL NAME 3 3 DIMENSIONS SPECIFICATIONS 4 4 PERFORMANCE DATA a et 5 TECHNICAL INFORMATION nn nn 6 1 PRINCIPLE OF ELECTROLYSIS 6 2 CONSTRUCTION 9 GENERAL 9 b CONTROL BOX nn nn 11 3 WIRING DIAGRAM 12 CIRCUIT tiere 13 5 FUNCTIONS AND 14 NORMAL MODE 14 b SHORT MODE nm nn 14 ADJUSTMENT uiti 14 d CHECKMODE nun nn iiti 15 SERVICE INFORMATION
4. Spare SW 1 hall element A uoneoo pesop NO MS MO usado 440 MS pesop NO usdo 440 Indul NO IPPON Kejdsig 19 17 Jaye Aejap puooes 0 uoneJedo Buipuoooe Aejdsip AjAnisues JAMO Josues 1 11045 INOYHM YHM w Josuas jo ejdsip 1 Josues pesn si que NO Josuas 00d JO Jeued pajoajap jnmsues 100 440 JAMO JOSUaS 100 440 Josuas pasnun NO pa 9319p NO 1x3 LUA o pasnun gt o ud o QT 5 o 95 o 0 gt gt 0 o 5 ES 0 oc 5 m eo a gt 0 0 E r pejejep AjAnisues jou 4JjO Je 0 Josue E NO yal 1X3 Bu Des 2 8 Zu 0 gt 0 5 8 i c 2 3 o a d O pajoajep 105 jou 440 wesq pejoelep NO 39 1X3 indui Josue jou 440 uoneJedo Ae ds q 22 18 440 do s aye
5. A Voltage provided on electrolytic cell at present as measured 3 Voltage Sa by main control board b SHORT MODE Use this mode to change the polarity every 2 minutes 1 While the earth leakage breaker is off hold down the flush button and set reset button 2 Turn on the earth leakage breaker 3 After 5 seconds release the flush button and set reset button Note The operation lamp flashes while the short mode is selected c ADJUSTMENT MODE The following menus are available in the adjustment mode Main 1 Sub 2 Portion control time min 1 to 60 1 AG Cleaning water dispensing 30 45 to 120 5 time for hand washing s A7 Sanitizing water dispensing 30 45 to 120 5 time for hand washing s Display present run time then n run time reversal time down set reset button reset n 10s to reset td 000 14 Factory default Adjustable range increments protection time min A13 Single nozzle 272 Single 1 Std 2 E temperature correction A to 8 1 factor rate adjustment factor 03 pa operation time factor Flow rate correction value L b to 0 5 0 1 RE softener regeneration 772 output cycle h ERO 10 1 0 to 5 0 0 1 feedback A22 Salt water supply factor initial 5 4 to 10 1 non electrolysis time s 1 0 to 5 0 0 1 feedback cycle Salt water supply factor A25jstroke subtraction after N A Skip reaching set point times
6. Electrons 2e are emitted to the anode which means the acidic water HCI causes oxidization As electrons are emitted the oxidization reduction potential becomes positive mV Chlorine ions also emit electrons and become chlorine gas Cl2 2Cr gt 2e Cl2 chlorine gas At the cathode sodium hydroxide NaOH and hydrogen gas H2 are generated H20 H t 2e NaOH Electrons 2e are received from the cathode which means the alkali water NaOH causes reduction As electrons are received the oxidization reduction potential becomes negative mV 2 CONSTRUCTION a GENERAL 1 Operation Panel Body Displays the present state of the electrolyzer more details to follow 2 Display Displays the cell run time h normally and the present conditions of the electrolyzer by switch operation 3 Control Panel Provided behind the cover are the buttons to adjust the operating conditions and various set values more details to follow 4 Earth Leakage Breaker Shuts off the primary power supply in case of earth leakage or overcurrent 5 Power Cord Single phase 220 240V Be careful not to jerk or pinch 6 Earth Wire Be sure to earth the electrolyzer body Be careful not to jerk or pinch 7 Salt Water Hose Sucks in concentr
7. cell 17 Magnetic Switch Reverses the polarity of the voltage applied to the electrolytic cell 18 Switching Regulator Electrolytic Cell DC power supply for electrolysis in the electrolytic cell 19 Switching Regulator Main Control Board DC power supply to drive the DC electrical components 20 Relay Located on the supply line of the switching regulator electrolytic cell Turns on off the switching regulator by using a make contact 21 Main Control Board Functions as the brain of the controls to verify inputs and command outputs 11 3 WIRING DIAGRAM Power Supply 1Phase 220 240V B e ELB B ia hr 1 sn one n 3 P82 fo i 5 nal 3H ip BS SL E la gh p
8. s Display rSEt then hold down Flow control valve open Diena curen aas closed Basically do NOT adjust the menus in gray d CHECK MODE The following menus are available in the check mode 16 uonoejep uonoejep g 0 uonoejep y 1ueui9 3 Sesojo suedo 1040 pesn SI yuez 3 9 10Z XOY NO pasn 3 8102 NO z y pesn 4 8 01 YUM WSIUCYDOW 4 uonoejoJd 330 gy 440 Z indui 440 330 nd asn 15 2 NO IPPON S eM V pesnupy s emiy pesnun 1 1 340 queja oz uedo ou Jonomuoo _________ yue 44u I indui que 1 9 O MS 38013 D oO O as z E gt E z 20 8i g Zu 5 o Zob Zi gt 5 5 a E 0 S 9 5 3 a EE o 39 amp 9 tied 4JO uonoejoJd duund 5 MS 18013 8 99 59 328 8 ge 20 Due O go 6 2 Ou O Zu zu valve direction OFF open TP1 0 close
9. 8 897 v 99 YILVM Gs 1 1 0 gavo 2 02 2 19 8 Iuno s3lvM 4055322 3915110 9NO1 65 005 ISOH N31VM LYS 09 5 35 LOVINOONON 2 19 4M0SS399V 3A TVA 34055344 3015100 9NO1 S L OLL OOBZ 9405 Y3MOd Jajonuoy TOWINOI 5 ALIVIO 1130 7 19 804 2 19 anon Bupnpay aunssaug 3 69 804 SNOILOSNNOO euor sq ur ao ps 4009 Avidsid JOSU2S j19DjuO2OUON YOUMS 4015 7155 2 19 4 69 aypa Buonpas Anssaony ug 0 uo WALSAS AlddNS mo7 40401980 uoi Aq queunsn py MISAS 313 NOLONGOYd 401294409 duie saom onouoiny PALSAS INANISNFOV INUUNO 210419311 poya 199410 NaLSAS ININISAROY YLVA 11 5 Abojouyos WALSAS SISATOYLOSTS Japmog 2915 paztub po 88 5 85 248014 Sgy 14104 2959 04 9915 09210402 301331 301334 3 H S Z E1 umore x a 01 6 9 uutzL x 0 SNOISN3
10. Moy BurseeJour ayes Buiseauoep Buiddojs exeJg 330 NO 330 NO 4 330 330 4 dois uedo 25010 sjndjno MO peyoxe you 44O Jojow pewoxe NO 8X pasnun peyoxe Aeja Alddns jou 440 Jamod oq NO 9s No O aN 4 TOO zu o 9 A 3 ou ace 33 2 Su 5 2 99 5 5 9 5 5 DE 2 gt gt on zu 22 E 23 gt 8 5 x 29 9 o a jndino an sod 440 NO 2 2 gt 5 8 ES 2 58 o 5 55 225 a 8 go 54 le gt Zug Sis Zu 9 E EN eee amp 005 55 05 m un so 2 gt 05 9 5 T XSS 258 o83S 889 29 8 R28 85 oar 440 EMOL 237 T NT 5 OU owwsod wo MS Alueiod JOU 440 UWelldL ndino IX 6X IIN NO fe dsig 9 19 SERVICE INFORMATION 1 ERROR CODES displa Flow rate stayed below 0 5L Production stops after on twe times Flow rate stayed above 0 5L Production stops after Error E14 Water shutoff min for 10 sec w
11. NAIG 4015110 pup Aonb 1340m uo spuadag ejoN 01 outoiy Ee 67 1840 4 jp opu png o SA 31811 FONYWYOSU3d WAY CT 30243438 sua o pombas sg cz equ jo fins on uy 6 NOLLONGOYd my vo usum aoaaa e 9210 1 200 5 due sy sto Jo se o 3000 ploy 10 108 01 x sq o eour 20 oz 1840M JNIOTHO GS VONVIS 92 10 om 31v8 NOLLONGOYd NOLLdAQSNOO 21019313 vO 2 09 09 AOZ 022 5 5 H3MOd 3 8MOL XON T1300 Jez o4129 3 491DM MDZIUSOH y 3SOH 31770 TANVd NOILVM3dO 1039 HOLIMS YIMOd 0L L 1 8z Z1 11 9 5 1 01 6 9 911 0 s v E1 9 ose 9004 00 lt 000 200 1009 200 1onpoud 8 JedoJd 10 pauimbas osjo uonpjjp4su AUD jaau ayy 30 p O WWOL s pnupuu PUD
12. Power Switch Operation Board Electromagnetic Metering Pump Electrode B Flow Controller Valve H Thermistor Water Valve Beam Sensor GREEN YELLOW BU DEEP BLUE eet BLUE EP BLUE WHITE 313258L01A 12 4 WATER CIRCUIT Pressure Gauge Filter D MA x Water Supply Pressure Reducing Pressure Reducing Valve 1 5kgf cm Valve Accessory Water Electrolyzer ROX 10WB E Water Softener O ee een MN gt 4 Li 4 Control Box i 1 1 i gt 1 A i i E i Thermistor i i 1 i i i 1 Aum i i i l i i 1 i 4 i i A H H O c noe e 3 gt a Flow Control 45 een ee T Valve Water Valve Remote Controller Salt Water or Tank Pump Electrolytic Cell Salt Water 13 5 FUNCTIONS AND OPERATION a NORMAL MODE The following menus are available in the normal mode The display shows from 1 to 3 every time the display select button is pressed 1 Cell run time h Total electrolytic cell run time at present 2 Current Current flowing in electrolytic cell at present as measured by current sensor
13. alve Allows use of electrolyzed water stored in the tank as required 3 Concentrated salt water direct injection system Direct addition of concentrated salt water held in the salt water tank accessory into the water flow requires no tank for diluted salt water resulting in reducing the space required 4 Built in current sensor No salt concentration sensor is required The built in current sensor provides highly accurate control 5 Constant voltage DC power supply Current control by a constant voltage power supply uses the salt concentration to correct reduction of the electrolyzation efficiency resulting in stable concentration of available chlorine 6 Available chlorine concentration 20 30 mg L or more Sanitizing water contains undissociated hypochlorous acid HOCI which sanitizes faster than sodium hypochlorite NaOCl and does not remain 7 Built in flow rate adjusting valve The built in flow rate adjusting valve automatically controls the flow rate according to the selection low medium high b MODEL NAME 10WB E L Global specifications Development order Wall installation Maximum flow rate x0 1L min Hoshizaki water electrolyzer 3 DIMENSIONS SPECIFICATIONS eanou Jod pub 994 ui expu 29 Mig 766 Aung um 105 1914 pup
14. ate 2 0L min 22 4 REMOVAL AND REPLACEMENT OF COMPONENTS a CONTROL BOX CAUTION To prevent electric shock be careful not to crush or drag the pipes or wires when removing the control box 1 Turn off the earth leakage breaker and unplug the unit 2 Remove the four M4 screws securing the top and bottom of the front panel 3 Disconnect all the connectors coming from the control box 4 Remove the two M4 screws securing the bottom of the control box 5 Slide out the control box towards you 6 To replace reverse the above pocedure b ELECTROLYTIC CELL CAUTION 1 To prevent electric shock be careful not to crush or drag the pipes or wires when removing the electrolytic cell 2 To prevent water leaks resulting in wetting the surrounding properties be sure to drain water before removing the electrolytic cell Turn off the earth leakage breaker and unplug the unit Remove the control box according to a CONTROL BOX Remove the two union nuts from the water outlets of the electrolytic cell Disconnect the salt water hose from the electrolytic cell Remove the union nut from the water inlet of the electrolytic cell Remove the four M5 screws securing the electrolytic cell and the control box backet Slide out the electrolytic cell towards you To replace reverse the above pocedure 23
15. ated salt water in the salt water tank Do not curve or bend by force 8 Salt Water Filter Removes foreign matter from concentrated salt water in the salt water tank Do not clog Clean at least once a month 9 Electrolyzed Water Outlet Dispenses sanitizing or cleaning water 10 Electrolyzed Water Outlet Dispenses sanitizing or cleaning water 11 Water Supply Inlet Should be connected with the water supply hose G3 4 provided 12 Cable Joint Connects the remote controller 13 Salt Water Tank Makes and stores 5 L of electrolyte concentrated salt water 14 Electromagnetic Pump Feeds a fixed amount of concentrated salt water electrolyte into the electrolytic cell 15 Fan Motor Cools down the control box interior 22 Electrolytic Cell Electrolyzes diluted salt water to generate sanitizing water and cleaning water 23 Flow Control Valve Located between the water supply inlet and the electrolytic cell Adjusts the rate of water supply 24 Motion Sensor Non contact sensor to start and stop dispensing electrolyzed water 25 Thermistor Senses the water temperature and automatically reduces the electrolytic current to prevent excessive available chlorine concentration in low temperature conditions 10 b CONTROL BOX 2 KC Es 2 16 Current Sensor Measures the current of the electrolytic
16. eck for water leaks from the water supply and drain lines to prevent wetting the surrounding properties 2 After servicing always check for proper operation CAUTION LABEL LOCATIONS The following caution labels are attached where special care should be taken On top panel Inside door On remote controller option On bottom front of control box IMPORTANT 4 Use only sodium chloride NaCl or potassium chloride of at least 99 purity Any other kind of salt may cause mechanical failures clogged pipes or harm to the health Check for loose screws To avoid water leaks do not loosen the screws DO NOT DRINK ELECTROLYTIC WATER USE FOR OTHER THAN WASHING PURPOSE MAY CAUSE HARM TO THE HEALTH 458290 01A RISK OF ELECTRIC SHOCK DISCONNECT POWER BEFORE SERVICING UNIT DO NOT DRINK ELECTROLYTIC WATER OR ALLOW CONTACT IN EYES OR FACE RINSE WITH PLENTY OF TAP WATER IF ELECTROLYTIC WATER GETS INTO EYES OR FACE A58448 01A INCREASING THE AMPERAGE SET POINT MAY RESULT IN AN INCREASE IN THE STRENGTH OF THE ACID WATER OUTPUT 2 PRODUCT INFORMATION a FEATURES 1 Space saving The compact unit W350 x D174 x H340 mm allows for installation on the wall 2 Various optional parts available Remote controller Makes the dispensing section remotely operable at hand Float switch Detects the tank water level to automatically start stop operation Outlet v
17. g Defective Hepat or replace regulator Main control Repair or replace board open circuit Thermistor Repair or replace 30 C or short circuit NE C was s detected HM lost or wrong board connector BERE NN element error board 21 3 FLOW RATE ADJUSTMENT Flow rate remains unchanged or below HI setting Pressing flow rate select button will not change flow rate and display Dispensing action is stopped Yes Normal Nor mode is selected Stop dispensing and press Water supply pressure not flow rate select button less than 0 15 MPa 1 5 bar Low water supply pressure Pressure ensured even with a large amount of tap N Flow control valve connector BLUE Reconnect water used elsewhere is disconnected No Valves and pipes free from Low water 1 Flow control valve defective foreign matter or clogging supply pressure 2 Open circuit No Remove foreign matter unclog or replace Note The actual flow rate may differ from the setting depending on variation of the flow rate sensor in the flow control valve e g Total flow rate setting standard 2 0L min gt actual flow rate 2 5L min Select normal Nor mode and press flow rate select button If the difference is too large use the adjustment mode AdJ to adjust the total flow rate A3 e g Total flow rate setting 1 5L min gt actual flow r
18. ith water valve water valve turns on Error no off twe times Production stops after three times Production continues Alternate between Open circuit 30 C or short E74 Thermistor as 5 C open circuit normal display circuit 60 C 30 C short circuit prem error no Ada Salt water level Sal Mat pump stayed au 00 Production Production stops Add salt Add salt lamp on on water spm for 90 sec Model setting soting CONNIE Production stops Error no Control board EEPROM error Production stops 2 SERVICE DIAGNOSIS Add salt _ water pump stayed Salt watertank Low saltwater Addsaltinsalt pump stayed Salt water tank Low salt water Add salt in salt Salt water hose Loose connection to Reconnect Switching SERE or replace regulator DC supply line open Correct electrolytic cell circuit Magnetic switch Repair or replace Add salt Continued Relay water Improper stroke dial Set to E far to ef 20 Error E11 Flow control valve flow Water supply line Water failure Recoverwater flow Water supply line Water failure Recover water rate sensor detected suppl flow rate below 0 5L Electrolyzed Blocked Unblock min for 10 sec with water water outlet valve on Joint hose Water valve Flow rate sensor Error Flow rate sensor Water valve detected flow rate above water valve off Error Electrolytic current Current sensor stayed below 0 5A for 2 sec Switchin
19. nit to prevent electric shocks 2 If the unit must be energized for inspection of the electric circuit use rubber gloves to avoid contact with any live parts which may result in electric shocks 3 Check for proper earth connections and repair if necessary to prevent electric shocks 4 Always use service parts intended for the applicable model for replacement of defective parts Use proper tools to secure the wiring Otherwise abnormal operation or trouble may occur and cause electric leaks or fire 5 Check for proper part installations wiring conditions and soldered or solderless terminal connections to avoid smoke fire or electric shocks 6 Be sure to replace damaged or deteriorated power cords and lead wires to prevent electric shocks flames or smoke 7 Lead wires using solderless terminals or the like must be bound with their closed ends up to avoid entrance of moisture that could lead to electric leaks or fire 8 After servicing always use a megohmmeter 500VDC to check for the insulation resistance of minimum 1 megohm between the live part attachment plug and the dead 1 metal part earth terminal Negligence in checking may cause electric leaks or shocks 9 Do not service the electrical parts with wet hands to prevent electric leaks or shocks 10 Always ask the user to keep children away from the work area They may be injured by tools or disassembled products CAUTION 1 After servicing be sure to ch
20. os w 47 a gre ral ki 1 1 212 aua 1 DBU L i Sr BR E Ow r3 lt so RETI i lt Rig madl E 17 1 45 Ay gpl so cud KES 1 DBUgy Ter es m ver lt 20 DBT LU SS ES as 1 to n FE EBEN lt to m UM gt SQUE AL PSs AER ac 3 FSi MIDDLE AL EMO ous ES en lt 5 TUPPER AL ee 975 2 7 AC pope ST Due ac gt gt est beris rS E lt j lt m BON s P gt u I era E Edda En A DBU ER FS y pio 1 52 ud R TN To CS tap us i 2 cus 1 EN RIGHT SIDE E R so BR TP oes E DBU BK BR X 1 Xa Ke asc m zy 953 1 E x BR cuz ed cs i so LB an levas gt LEFT SIDE Ho ae gt Ho ypu VA 25 gt SHEER gt pua ea mmn o 5 R D CONTROLS Relayl Relay DC Power Supply Switching Regulator 12V Switching Regulator 5V Controller Board Current Sensor Noise Absorber Fuse LECTRICAL PARTS
21. uoron4jsu 241 ur 035 suonoeuuoo Suonoeuuoo ulbip A ddns 49 0M uonpoo uo suononajsul BY eouppaoo90 1onpoud ay Z uononpoud 6 jo uonoejes 20 peuinbau eq 9154 ZZ PANGL O Jo eanssegd Ajddns ay 9 Ajo Aq oz o uiu 4 I eoa vo Juano 3 LL O GZ 4 98 0 0 94nib4eduue juerquuo zo uo 4 5213429024 peo eu e2upjsiseJ jue pAinbe jsnuu ay p uonpsuepuoo 1ue eJd peio nsu aq ysnw pulayxa E 894j 1snp uonpojpjsu 291 7 Buipuno46 129044 4 PERFORMANCE DATA The following graph shows the electrode performance curve The electrode life cycle depends on the free chlorine concentration as well as the raw water quality To optimize the electrolyzed water we recommend the electrolytic cell should be replaced every 3 000 hours of operation 60 50 40 30 Available Chlorine lt ppm gt 20 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Time lt h gt 5000 Il TECHNICAL INFORMATION 1 PRINCIPLE OF ELECTROLYSIS Water H2O
22. we use in our daily life has a mysterious power Adding a small amount of salt NaCl to water H2O and electrolyzing it with special electrodes will generate electrolytic oxidizing water acidic water with strong oxidizing effects and electrolytic reducing water alkaline water with strong reducing effects Here we explain this electrolysis process and the meaning of such terms as pH and oxidization reduction which may sound unfamiliar Electrolysis Process See the diagram on the following page for the electrolysis mechanism inside the electrolytic cell 1 Electrolysis with a higher salt concentration around 5 2096 is apt to generate chlorine gas at the anode The electrolyzer with a lower salt concentration around 0 07 0 15 is apt to generate hypochlorous acid HOCI at the anode 2 At the anode oxidization will generate hypochlorous acid HOCI and chlorine gas Clz 3 At the cathode reduction will generate hydrogen gas H2 and sodium hydroxide NaOH Oxidization Reduction Oxidization and reduction occur a the same time while electrons are transferred 1 Oxidization Reaction of a substance to emit electrons 2 Reduction Reaction of a substance to receive electrons Oxidization Reduction Potential Degree of liability to oxidization and reduction indicated in mV 1 Positive potential An oxidizing agent 7 a substance capable of oxidizing other substances is contained The higher potential sho
23. ws the higher tendency to oxidize other substances 2 Negative potential An reducing agent 7 a substance capable of reducing other substances is contained The lower potential shows the higher tendency to reduce other substances pH Concentration index of hydrogen ions pH7 means neutrality the higher pH alkalinity and the lower pH acidity Flow of electrons gt DC Power Supply Hypoch d Sodium Hydroxide NaOH lorous Aci HOCI Electrolytic Cell Positive ions drawn Anode to cathode Cathode OX RED Negative ions drawn to anode Salt Water NaCl Reactions at Anode Reactions at Cathode Chloride ions and hydroxide ions emit Sodium ions Nat receive electrons e electrons e to the anode which become from the cathode and become sodium hypochlorous acid HOCI metal Na which reacts with water H2O and becomes sodium hydroxide NaOH and hydrogen gas H2 Salt water contains four kinds of ions sodium ions chlorine ions hydrogen ions and hydroxide ions OH NaCl H20 gt Mix water and salt Salt water 4 kinds of ions When two electrodes are inserted into salt water and voltage is applied Negative ions are drawn to the anode and Positive ions Na are drawn to the cathode At the anode hydrogen chloride HCI and hypochlorous acid HOCI are generated 2 H20 gt 2e

ROX-10WB-E - Hoshizaki

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