Hoshizaki ROX-20TA-U Instruction Manual Download

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INSTRUCTION MANUAL

ISSUED: FEB. 29, 2000

REVISED: APR. 25, 2005

HOSHIZAKI

WATER ELECTROLYZER

MODEL

ROX-20TA-U

Summary of Contents for ROX-20TA-U

Page 1: ...INSTRUCTION MANUAL ISSUED FEB 29 2000 REVISED APR 25 2005 HOSHIZAKI WATER ELECTROLYZER MODEL ROX 20TA U ...

Page 2: ...fied service technicians in the installation maintenance and service of the water electrolyzer Should the reader have any questions or concerns which have not been satisfactorily addressed please call or write to the HOSHIZAKI Technical Support Department for assistance HOSHIZAKI AMERICA INC 618 Highway 74 South Peachtree City GA 30269 Attn HOSHIZAKI Technical Support Department Phone 1 800 233 19...

Page 3: ...E CONTROLLER OPTION 8 6 WATER TANK FLOAT SWITCHES OPTION 8 7 OUTLET VALVES OPTION 9 8 ACCESSORIES 9 III INSTALLATIONAND OPERATINGINSTRUCTIONS 10 1 CHECKS BEFORE INSTALLATION 10 2 HOW TO REMOVE PANELS 10 3 LOCATION 10 4 ELECTRICAL CONNECTION 11 5 INSTALLATION OF WATER SOFTENER SOLD SEPARATELY AND WATER FILTER SOLD SEPARATELY 12 a CHECKS BEFORE INSTALLATION 12 b LOCATION 12 c SET UP 12 d ELECTRICAL ...

Page 4: ...G SALT WATER SUPPLY PUMP 34 V OPERATION 35 1 START UP 35 2 SHUT DOWN 36 VI MAINTENANCE 37 1 CHECKING pH AND AVAILABLE CHLORINE CONCENTRATION 37 2 FLUSHINGALKALINE WATER PIPE 37 3 CLEANING WATER LEVEL SENSOR SALT WATER FILTER AND SALT WATER TANK 39 4 CHECKING WATER SOFTENER 39 5 CHECKING WATER FILTER 40 6 EXTERIOR 40 7 PREPARING WATER ELECTROLYZER FOR LONG STORAGE 41 VII TROUBLE SHOOTING 42 1 WHEN ...

Page 5: ...1 I SPECIFICATIONS 1 NAMEPLATE RATING See the Nameplate for electrical specifications This Nameplate is located on the lower right hand side of the Rear Panel ...

Page 6: ...2 2 DIMENSIONS CONNECTIONS Unit inch mm ...

Page 7: ...hing Valve 6 Microswitch Location Senses the location of the Flow Switching Valve 7 Gear Motor Rotates the Impeller inside the Flow Switching Valve 8 Water Valve Supplies potable water to the Electrolytic Cell 9 Flow Rate Sensor Senses potable water flow 10 Surge Absorber Interrupts a temporary voltage surge 11 Electrolytic Cell Electrolyzes diluted salt water and generates acid and alkaline water...

Page 8: ...lies salt water to the unit 20 Terminal Block Used when the Water Tank sold separately is installed 21 Rear Panel not shown Removed when the Water Tank Float Switches are connected to the Terminal Block or the Remote Controller is connected to the Control Box 22 Blind Bushing Removed when the Water Tank Float Switches are connected to the Terminal Block or the Remote Controller is connected to the...

Page 9: ...lamp is on 5 Display Select Button Switches the display of the Display Window 6 Flush Button Functions as a switch to flush the pipes beyond the acid and alkaline water outlets 7 Set Button Only qualified service personnel or installer may press this button to adjust various set values 8 Amperage Control Volume Only qualified service personnel may turn this control to change the set amperage 9 Vol...

Page 10: ...trolytic water 4 Add Salt Water Lamp Red Indicates that the Salt Water Tank level is too low 5 Flush Lamp Red Stays on during the flush operation Indicates that the unit is in flush cycle 6 Electrolytic Cell Replace Lamp Red Indicates that the cell life is near completion Flashes continuously from 2900 hours to 3000 hours and stays on after 3000 hours 7 Service Call Lamp Red Indicates that there i...

Page 11: ...tor Switches polarity of the Electrolytic Cell 6 Relay 1 For 10 DC Power Supply 7 Relay 2 Controls the water level in the Water Tank 8 Relay 3 Switches the electrolytic water display of the Remote Controller 9 DC Power Supply Power supply for cells to generate electrolytic water 10 Programmable Controller Manages all controls of the unit 11 Noise Filter Removes noise from 1 19 Electromagnetic Mete...

Page 12: ...peration Alkaline water is dispensed from the left outlet and acid from the right The lower lamps will function during the flush operation only Acid water is dispensed from the left outlet and alkaline water from the right 4 Dispense Button Starts and stops dispensing electrolytic water 5 Electrolytic Water Outlet Transports electrolytic water 6 WATER TANK FLOAT SWITCHES OPTION Includes the Upper ...

Page 13: ...ets for acid and alkaline water outlets on the Water Tank Use as needed 8 ACCESSORIES Connectors pH Testers Chlorine Tester InstructionManual Instruction Sheet Cap Gaskets Pressure Reducing Valve Water Supply Hose Braided Hoses Salt Measuring Cup Salt Water Tank Clamps ...

Page 14: ...tic cell damage etc 1 Be sure not to damage the panels when installing the water electrolyzer 2 Remove the package containing the accessories 3 See the Nameplate on the Rear Panel and check that the voltage supplied corresponds with the voltage specified on the Nameplate 2 HOW TO REMOVE PANELS a Rear Panel Remove the screws Lift off slightly and pull toward you 3 LOCATION WARNING 1 This waterelect...

Page 15: ...high heat producing equipment Location should provide a firm and level foundation for the equipment Allow 6 clearance at rear sides and top for proper performance and ease of maintenance and or service Install the unit in a well ventilated area Use fans with diameter over 6 inches standard air flow rate 270ft3 min 450m3 h if necessary 4 ELECTRICAL CONNECTION WARNING 1 This water electrolyzer must ...

Page 16: ... Softener and the Water Filter b LOCATION Install the Water Softener and Water Filter under the same ambient temperature and water temperature conditions as the water electrolyzer Follow the Instruction Manual for the Water Softener and the Water Filter c SET UP 1 Install the valves and pipes following the Instruction Manual for the Water Softener and the Water Filter 2 Install a water pressure ga...

Page 17: ...ed For piping of the Water Softener and Water Filter follow the Instruction Manual for the Water Softener and the Water Filter Adjust water pressure so that discharge pressure after pipes are connected will be within 15 115PSIG 0 10 0 78MPa Also adjust water supply pressure so that it will be within the specified value in the specifications for the Water Softener and the Water Filter softener is N...

Page 18: ... remove shipping carton tape s and other packaging material s 2 Check that all the necessary accessories are included 3 Check that the Remote Controller and water electrolyzer are installed so that the cables and connection hoses of the Remote Controller can reach the water electrolyzer 4 Check if there is any serious damage broken cable etc b LOCATION WARNING 1 This remote controller is not inten...

Page 19: ...s orotherhigh heat producing equipment Location should provide a firm and level foundation for the equipment Install the unit in a well ventilated area Use fans with diameter over 6 inches standard air flow rate 270ft3 min 450m3 h if necessary c SET UP CAUTION Use the Accessory Braided Hoses Connectors and Gaskets for electrolytic water piping Other materials may cause corrosion and water leakage ...

Page 20: ...th using the PVC Braided Hose to maintain the proper performance of the electrolytic water InstalltheRemoteControllersothatthe outletsare locatedabovetheunit Thedifference in the gas amount between acid water and alkaline water may change the flow rate balance and cause poor performance Tapping Screw Bracket Remote Controller Fig 4 Fig 5 Fig 6 PVC Braided Hose Clamp Connector Install the Remote Co...

Page 21: ...ller Cable Cable Base Bushing 7 INSTALLATION OF WATER TANK FLOAT SWITCHES OPTION AND WATER TANK SOLD SEPARATELY a CHECKS BEFORE INSTALLATION 1 Unpack and remove shipping carton tape s and other packaging material s 2 Check that all the necessary accessories are included 3 Check that the water electrolyzer and Water Tank are installed so that the cables of the Float Switches can reach from the wate...

Page 22: ...ealth problems CAUTION 1 Avoid a site where dripping is not allowed Condensation may form on the exterior in high humidity and could drip onto the floor 2 Use glass plastic or stainless steel containers for electrolytic water Acid water may corrode metal For best operating results The Water Tank should not be located next to ovens grills or other high heat producing equipment Location should provi...

Page 23: ...tion of the Float Switch See Fig 11 4 Secure each water tank with a belt framing or other securing device so that it will not tip or fall Fig 10 Fig 11 Hole Diameter 9 16 Min 2 1 2 Top Magnet Bottom d ELECTRICAL CONNECTION Usually an electrical permit and services of a licensed electrician are required 1 Remove the Rear Panel See III 2 HOW TO REMOVE PANELS 2 Remove the plastic cover of the Termina...

Page 24: ...se Bushing 8 INSTALLATION OF OUTLET VALVES OPTION a CHECKS BEFORE INSTALLATION 1 Unpack and remove shipping carton tape s and other packaging material s 2 Check that all the necessary accessories are included b LOCATION WARNING 1 This outlet valve is not intended for outdoor use Normal operating ambient temperature should be within 40 F to 95 F 5 C to 35 C Normal operating water temperature should...

Page 25: ...l ventilated area Use fans with diameter over 6 inches standard air flow rate 270ft3 min 450m3 h if necessary c SET UP CAUTION Use the PVC pipes for electrolytic water piping Other materials may cause corrosion and water leakage 1 Choose a dispense method Water Pump or Water Tank depending on the installation situation Install PVC pipes from the Water Tank to the location where electrolytic water ...

Page 26: ...olyzer until adequate water pressure 15 115PSIG 0 10 0 78MPa is reached 2 The vertical height of the pipe and total length of the pipes for acid and alkaline watershould bethe same Different pipelengthsmaycauseanunstable amount of acid and alkaline water to be generated poor performance or damage to the unit 3 Keep the end of the electrolytic water pipes open Do not install a shut off valve on the...

Page 27: ...te Be sure to check the direction of the Pressure Reducing Valve See Fig 16 Water supply inlet is 3 4 MPT Connect the unit with the Pressure Reducing Valve using the Water Supply Hose Accessory Note Place the Gaskets between the Water Supply Hose and unit water supply inlet and the Pressure Reducing Valve and tighten properly Incomplete connection may cause water leakage See Fig 17 Fig 16 Inlet Ou...

Page 28: ...An air gap of a minimum of 2 vertical inches should be between drain pipe ends and the floor drain the hose ends from the water electrolyzer and the floor drain and the water supply line drain valve and the floor drain This water elelctrolyzer should be installed in accordance with applicable national state and local regulations A plumbing permit and services of a licensed plumber may be required ...

Page 29: ...zing it may cause rusty pipes and water leakage 5 Do not install the unit where there is a possibility of freezing Remove water from the unit if ambient temperature may fall below 32 F 0 C Frozen water may damage water supply pipes and cause water leakage 6 Maintain water supply pressure to the unit within 15 115PSIG 0 10 0 78MPa Excessively low or high water pressure may cause poor performance of...

Page 30: ...e Accessory Note Place the Gaskets between the Water SupplyHoseandunitwatersupplyinlet and the Pressure Reducing Valve and tighten properly Incomplete connection may cause water leakage See Fig 23 Prepare a drain hose with a plastic shut off valve if water needs to be removed from the unit or water may freeze in the unit in cold areas Remove the drain cap on the back of the unit and attach the pla...

Page 31: ...e in the alkaline water pipe and help stabilize the amount of alkaline water to generate Also be sure to have about 5 100 pitch downward for horizontal piping See Fig 27 Be sure to install PVC or acid and alkaline resistant inspection valves on the vertical piping to measure acid and alkaline water See Fig 27 Fig 27 3 4 Vent Pipe 3 4 Horizontal Pipe Inspection Valve 3 4 Downward Pipe Inspection Va...

Page 32: ...om the water electrolyzer and the floor drain and the water supply line drain valve and the floor drain This water electrolyzer should be installed in accordance with applicable national state and local regulations A plumbing permit and services of a licensed plumber may be required in some areas Piping Example Outside OverflowPipe To drain Trap Vent Pipe Inspection Valve Water Tank Shut off Valve...

Page 33: ...l Panel will indicate the current operation time h and the Operation Time Lamp is on Press the Set Button and keep holding down the button 6 Check that the Display Window is showing Nor Nor indicatesthattheunit is currently in the Normal Mode See Fig 30 7 Press the Display Select Button once while holding down the Set Button 8 Check that the Display Window is showing AdJ AdJ indicates that the uni...

Page 34: ...n mode factory setting SFt H The operation mode can be set now See Fig 33 13 Press the Display Select Button or Flush Button until the appropriate operation mode is displayed depending on the unit installation condition The Display Window continues to flash SFt H With the Remote Controller installed SFt P With the Water Tank installed HANd Do not set for the Remote Controller and Water Level Senso...

Page 35: ...AdJ is displayed in the Display Window 16 Press the Display Select Button once holding down the Set Button 17 Check that CHE is displayed in the Display Window CHE indicates that the unit is in the Check Mode See Fig 36 18 Press the Display Select Button one more time holding down the Set Button 19 Check that Nor is displayed in the Display Window 20 Release the Set Button 21 This is the end of se...

Page 36: ...ng potable water 10 Has the power supply voltage been checked or tested against the nameplate rating 11 Have the water supply line shut off valve and drain valve been installed Has the water supply pressure for the ROX 20TA U been checked to ensure a minimum of 15 PSIG 0 10MPa and a maximum of 115 PSIG 0 78MPa 12 Is the water tank securely fixed 13 Has the pressure reducing valve been installed 14...

Page 37: ...than those may damage the unit clog pipes etc 2 Shake the tank until salt is completely dissolved Salt lumps may damage the unit 1 Prepare the Salt Water Tank Remove the Salt Water Hose and Cap from the Salt Water Tank when using the Accessory Salt Water Tank The Salt Water Tank should be empty Cap Salt Water Hose Salt Water Tank Salt Measuring Cup 2 Add a full cup approximately 24 oz of sodium ch...

Page 38: ...upply salt water If the Salt Water Supply Pump contains air electrolytic water cannot be dispensed properly When the unit is installed for the first time when theAdd Salt Water Lamp on the Display Panel goes on or when the Error Lamp on the Display Panel turns on and the Display Window on the Control Panel shows the error code E51 purge air from the Salt Water Supply Pump as follows 1 Check that t...

Page 39: ... not be modified jerked bound brought close to heat producing equipment pressed down or pinched It may be damaged and cause a risk of electric shocks or fires 4 All parts are factory adjusted Improper adjustment may result in failure 5 Do not splash water directly onto the unit It may cause a short circuit electric shock corrosion or failure 6 Install an adequate ventilating system Hydrogen gas or...

Page 40: ... is installed 9 The Dispensing Lamp will turn on and the Ready Lamp will be flashing Ineffective electrolytic water will be dispensed at first Note Do not use electrolytic water while the Ready Lamp is flashing when using water dispensed from the Remote Controller With the Water Tank ineffective electrolytic water and effective water will mix inside the Water Tank and the mixed water will be effec...

Page 41: ... Concentration Acid Water Approx 2 7 or less 20 30mg L or more Alkaline Water Approx 11 3 or more N A Note See the Instruction Manual of each test paper for details of its proper handling If any of the checked values exceeds the specified range contact an authorized Hoshizaki service company To order a new supply of test paper contact an authorized Hoshizaki service company 4 Fill in a copy of the...

Page 42: ... water will be stored 4 Dispense electrolytic water for 2 hours flushing time may vary depending on how bad the Alkaline Water Pipe is clogged Continue to dispense electrolytic water or use the water during the flushing operation 5 To end the flush cycle press the Flush Button once more while electrolytic water is being dispensed The Flush Lamp will go off and electrolytic water will be dispensed ...

Page 43: ...er Tank with a neutral detergent and remove salt lumps dust etc Rinse the Salt Water Tank well 4 Wipe off the Salt Water Tank 5 Put the Salt Water Hose with the Salt Water Filter through the Cap and push in the Salt Water Hose until the Stopper hits the Cap In case of using a larger tank install the Salt Water Hose so that the Salt Water Filter on the Salt Water Hose can reach the bottom of the ta...

Page 44: ...orrosion or failure IMPORTANT Do not use thinner benzine alcohol petroleum powder soap polish alkaline detergent acid or pot cleaner They may damage the painted or plastic surfaces 1 Wipe off the unit with warm water If a neutral detergent is used to wipe off the unit wipe off again with warm water 2 The Display Panel Salt Water Tank and Remote Controller are plastic Do not hit or scratch with a s...

Page 45: ...inside the Salt Water Tank to remove salt completely with tap water 4 Fill the Salt Water Tank with tap water and connect the Salt Water Hose 5 Follow the IV 3 PURGING SALT WATER SUPPLY PUMP to wash the salt water circuit with tap water Keep the water running for at least 3 minutes 6 Disconnect the Salt Water Hose from the Salt Water Tank and drain the hose Wipe out the Salt Water Hose and Salt Wa...

Page 46: ...service company when problems cannot be handled by a user When theAdd Salt Lamp on the Display Panel is on follow IV 2 MAKING SALT WATER and add salt water to the Salt Water Tank See the following for details Error Lamp Error Code Possible Cause and Countermeasure Add Salt Lamp None Not sufficient salt water 1 Is salt water in the Salt Water Tank low See IV 2 MAKING SALT WATER and add salt water t...

Page 47: ...E52 Defective Current Sensor or Switching Regulator Repair or replacement is required E61 Defective Flow Switching Valve Repair or replacement is required E62 Defective Microswitch Repair or replacement is required E65 Defective Gear Motor Repair or replacement is required Error Lamp Error Code Possible Cause and Countermeasure 4 Is the Salt Water Filter on the end of the Salt Water Hose free of d...

Page 48: ...nit is initially installed or at the initial operation after removing water from the unit for the first time Dispense water again and adjust the salt concentration inside the water circuit Dispensing water several times will help lower the salt concentration 2 Is the salt water concentration too high Add water to the Salt Water Tank and adjust the concentration 3 Are hoses connected with the outle...

Page 49: ...er Hose free of salt lumps etc Remove the cause that is blocking the Salt Water Hose Follow the above check items and inspect the unit After inspection turn the Power Switch on the Control Panel on and start the unit If problems persist turn the Power Switch off and contact an authorized Hoshizaki service company immediately 4 PROBLEMS WITHOUT ALARM INDICATION 1 Unit fails to operate 1 Power failu...

Page 50: ...rson Date Time pH Acid water Alkaline water Available chlorine concentration mg L Water supply temp F or C Cell operating time h Responsible person Date Time pH Acid water Alkaline water Available chlorine concentration mg L Water supply temp F or C Cell operating time h Responsible person Date Time pH Acid water Alkaline water Available chlorine concentration mg L Water supply temp F or C Cell op...

Page 51: ...HOSHIZAKIAMERICA INC 618 HIGHWAY 74 SOUTH PEACHTREE CITY GA30269 U S A PHONE 770 487 2331 www hoshizakiamerica com 91U8AA10C ...

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