Yamato WG270 Instruction Manual Download Page 57

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５３

８.

In the Event of Failure…

Failure indication and Its Contents

Deaeration
membrane
module
exchange
message

’s time

to exchange

MHF

When

concecutive

water

supply of one year has
passed

Replace the deaeration
membrane module.
Keep

pressing

the

reset switch on the
door backside for an
extended

period

time.

The

confirmation sound is
issued and the alarm
display is reset.

Maintenance time
notification

It's time

to maintenance

Service Call

When 3 years passed under
continuous

energizing

condition

Perform

maintenance

of the unit.
Press and hold the
reset

switch

backside of the door till
a beep is heard. Then,
the alarm indication is
reset.

Summary of Contents for WG270

Page 1: ...nk you for purchasing Auto Still WG 270 of Yamato Scientific Co Ltd To use this unit properly read this Instruction Manual thoroughly before using this unit Keep this instruction manual around this unit for referring at anytime WARNING Carefully read and thoroughly understand the important warning items described in this manual before using this unit ...

Page 2: ......

Page 3: ...splay of Water Quality ２９ Setting Display of Submenu ３２ 5 Handling Precautions ３５ 6 Maintenance Method ３６ Inspection and Maintenance ３６ Replacement of pre treatment cartridge ３６ Replacement of ion exchange resin cartridge ３７ Washing of Distiller ３８ Replacement of Heater ４２ Washing of Water Supply Hose Filter ４３ Replacement of Hose ４３ Distilled water tank drain method ４３ Replacing the TOC reduction...

Page 4: ...10 Specifications ５９ 11 Wiring Diagram ６０ WG270 ６０ 12 Replacement Parts List ６２ 13 Consumable parts ６４ 14 List of Dangerous Substances ６５ ...

Page 5: ...of a problem that may cause a serious accident or ev en f atality CAUTION If the caution is ignored there is the danger of a problem that may cause injury damage to property or the unit itself Meaning of Symbols This sy mbol indicates items that urge the warning including the caution A detailed warning message is shown adjacent to the sy mbol This sy mbol indicates items that are strictly prohibit...

Page 6: ...Caution electrical shock Caution scald Caution no road heating Caution not to drench Caution water only Caution deadly poison Prohibit Prohibit generally Prohibit inflammable Prohibit to disassemble Prohibit to touch Compulsion Compulsion generally Compulsion connect to the grounding terminal Compulsion install on a flat surface Compulsion disconnect the power plug Compulsion periodical inspection...

Page 7: ... Do not use the power cord if it is bundled or tangled If it is used in this manner it can overheat and fire may be caused Do not process bend wring or stretch the power cord forcibly Do not process bend wring or stretch the power cord forcibly Fire or electrical shock may result Do not disassemble or modify this unit Do not disassemble or modify this unit Fire or electrical shock or failure may b...

Page 8: ...ding according to Article 18 Type III Grounding Work of 100Ω or less of the Technical Standards for Electric Equipment Never connect the grounding wire to gas pipe or water supply pipe 2 Choose a proper place for installation Do not install this unit in a place where Rough or dirty surface Flammable gas or corrosive gas is generated Ambient temperature 35 C and above or 5 C and below Ambient tempe...

Page 9: ...fire explosion may result To know about flammable or explosive gas refer to Page 67 List of Dangerous Substances Explosive gas Flammable gas 4 Do not modify Never disassemble this unit This unit has high voltage inside in some portion which may cause electric shock Contact a local dealer or Yamato sales office for adjusting or repairing inside In routine maintenance and inspection follow the proce...

Page 10: ...unding wire and the plug is grounded type If your plug socket is not compatible 2P use a ground adapter attached in nonstandard In using ground adapter be sure to ground a grounding lead 8 Handling of power code Do not entangle the power cord This will cause overheating and possibly a fire Do not bend or twist the power cord or apply excessive tension to it This may cause a fire and electrical sho...

Page 11: ...hose can be separated There separate the two parts 2 Once loosen the plug from the ring 3 Tighten the 4 mounting screws uniformly while pressing the ring slightly and uniformly to make the packing in flat contact with water tap If the tap is a chemical tap adjust the position so that the mounting screw is located at the bottom valley of tap nipple as shown 4 Turn the plug clockwise to tighten secu...

Page 12: ...he water supply hose to the tap provided with sink equipment If the water supply hose is connected to a tap without sink equipment flood damage may be caused when water supply hose is disconnected or damaged therefore be sure to connect to a tap having sink equipment 14 When the sink equipment is remote from water tap use Water Supply Port Unit optional accessory Water Supply Port Unit is designed...

Page 13: ...ose clamp securely 5 Pull the hose out from the drain hose end outlet at right left or backside of the main unit Hose clamp Drain port hose on the main unit Elbow Drain hose accessory 17 Use care in routing of drain hose Do avoid making bend or projection of drain hose In case that the drain hose is bent and the drain cannot be performed back flow or breakage of the cooling hose might occur Place ...

Page 14: ...ride tube DV RR joint is used for the joint and even if insert socket JIS K6739 is used the water drain trap in the nonstandard options should be used when the control temp cannot be lowered 60 or lower Even if the drain temperature is 60 or lower and if the above mentioned tubes and joint are not used the drain trap in the nonstandard options should be used 19 When drain temperature of sink equip...

Page 15: ... cartridge and high purity cartridge with the band of receiver See Fig 2 Fig 1 Fig 2 5 Remove the rubber cap attached to the inlets and outlets of ion exchange resin cartridge and high purity cartridge 6 Fit in the coupler marked with IN to the inlet of ion exchange resin cartridge left until click is heard and repeat the procedure in the same way for high purity cartridge See Fig 3 7 Fit in the c...

Page 16: ...ents to the body 3 Inlet and outlet of the pre treatment cartridge are provided with a cap so remove it 4 When the front door of this unit is opened connection hose marked IN and OUT is found in the coupler there make connection matching them with IN and OUT on pre treatment cartridge 5 In connecting mate the coupler and port of cartridge while sliding the blue portion of coupler toward the hose p...

Page 17: ...ake out two membrane filters and seal tape from among accessories of the main body 2 Pay attention to the direction of arrow mark on the membrane filter Wind the seal tape clockwise as viewed from the tape windind side two to three turns while pulling the tape slightly Remaining tape should be cut away 3 Screw the membrane filter with the seal tape applied side on the top side while taking care no...

Page 18: ...nd keep operation till the tank is filled with the distilled water 4 When the tank is full of the distilled water continue operation without turning OFF power supply keep the distilled water circulating In four or more hours use the distilled water This step is necessary for initial operation only A guideline is as follows If the specific resistance of distilled water is maintained at 1 2Ｍ Ω cm or...

Page 19: ...ach at right left Earth leakage breaker Ion exchange water sampling port Pre treatment cartridge Distilled water tank Reset switch Water sampling table Drain switch for water sampling table Distilled water sampling port Leakage detection electrode Drain cock Control panel Product number sticker High purity cartridge CPC H CPC H Water feeding port ...

Page 20: ...d press the drain switch specifically used for the water sampling table at right side of the unit Coolant flows for one minute and then the water sampling table is drained After that returns to the condition before pressing the switch When the tank is filled to capacity Distillation is not operated When drawing pure water While standby time the breaker is turned on and POWER key is turned off Drai...

Page 21: ...er quality gauge electrode for CPC H 19 Check valve 20 Boiler water supply solenoid valve 21 Initial accumulated water drain solenoid valve 22 Distilled water quality gauge electrode 23 Deaeration membrane module 24 Solenoid valve for vacuum pump 25 Vacuum pump 26 TOC reducing UV lamp 27 Distilled water sampling pump 28 Distilled water tank drain port 29 Float switch 3 30 Distilled water tank 31 A...

Page 22: ...Boiler Water Supply and Distilling Operation When drain of boiler is finished both the raw water supply solenoid valve and boiler water supply solenoid valve open simultaneously supplying water to the boiler When the float switch 1 in the float cylinder detects the water level the heater is energized to start distillation Water supply to the boiler is controlled by opening closing the raw water su...

Page 23: ... 10 minutes from the start of distillation In this case the initial accumulated water drain solenoid valve 21 opens to discharge this water beforehand When the float switch 29 at the top portion inside the tank is activated the tank is judged to be full and distillation stops When the distilled water is consumed to a certain level through its sampling the unit generates the distilled water automat...

Page 24: ...ter circulation pump ion exchange resin cartridge CPC N ion exchange water quality electrode CPC N front high purity cartridge CPC H ion exchange water quality electrode CPC H rear 18 ion exchange water sampling solenoid valve 33 ion exchange water flow sensor 35 ion exchange water sampling port 37 and membrane filter 39 During ion exchange water sampling the supply water circulation pump runs to ...

Page 25: ... is activated The electric conductivity of deaerated distilled water decreases When the electric conductivity of distilled water in the tank exceeds 0 83μS cm the TOC reduction UV lamp goes ON The TOC value decreases along with increase in this electric conductivity When the electric conductivity increases above 0 95μＳ cm the TOC reduction UV lamp goes OFF Then the distilled water is sampled Circu...

Page 26: ...o the previous setting item Pure water lamp Lighting during pura water sampling Distilled water lamp Lighting duringdistilled water sampling Water level lamp This lamp indicates the storage amount of distilled water in the tank in five levels When this red lamp lights distilled water cannot be collected for empty drive prevention of the pump When this red lamp lights distilled water cannot be coll...

Page 27: ... WATER key and DISTILLED WATER key Perform calibration operation at the measured values of heater temperature and power supply voltage for about five minutes after then distillation starts automatically The calibrator is used to save the reference temperature under normal operation state of temperature sensor incorporated into the heater into the internal controller If the temperature exceeds the ...

Page 28: ...in of the boiler starts when turning on off the earth leakage breaker and when five hours passed after distillation starts Drain of the boiler does not start if POWER key is not turned on 3 Distillation operation FILL CONDUCTIVITY M F WATER LEVEL MEASURED CONTINUOUS FULL EMPTY POWER PURE WATER DISTILLED WATER In Distillation Tank Empty Distill Water NA Continuous Distillation operation starts When...

Page 29: ...WATER key again Then PURE WATER lamp is turned on After water collection is finished it returns to distillation operation Continuous collection of distilled water FILL CONDUCTIVITY M F WATER LEVEL MEASURED CONTINUOUS FULL EMPTY POWER PURE WATER DISTILLED WATER DI sampling DIS Conductivity 0 06 10 4 S m Continuous DW sampling DW Conductivity 0 854 10 4S m Continuous While the distilled water tank l...

Page 30: ...f collecting pure water The same setting screen is used for setting of pure water and distilled water 1 Set the amount of pure water by pressing key WG270 Setting can be made up to 20 liters 2 After setting pressing PURE WATER key starts water collection 3 Collecting FILL CONDUCTIVITY M F WATER LEVEL MEASURED CONTINUOUS FULL EMPTY POWER PURE WATER DISTILLED WATER DI sampling DIS Conductivity 0 06 ...

Page 31: ... 0L Set the amount of collecting distilled water The same setting screen is used for setting of pure water and distilled water 1 Set the amount of distilled water by pressing key WG270 Setting can be made up to 20 liters 2 After setting pressing DISTILLED WATER key starts water collection 3 Collecting FILL CONDUCTIVITY M F WATER LEVEL MEASURED CONTINUOUS FULL EMPTY POWER PURE WATER DISTILLED WATER...

Page 32: ...ed under this condition the holding condition is released 4 After collecting water is finished Measured 0 0L appears on the window and return to the screen of Clause 2 Cautions 1 During distillation and ion exchange the supply water circulation solenoid pump is always running When the distilled water tank is full this pump stops To sample pure water while this pump is stopped set this pump normall...

Page 33: ... CONDUCTIVITY M F WATER LEVEL MEASURED CONTINUOUS FULL EMPTY POWER PURE WATER DISTILLED WATER DW sampling DW Conductivity 0 85 10 4 S m Continuous Switch the conductivity display The ion water conductivity is displayed durig sampling of pure water In other cases the conductivity of distilled water is displayed Excluding the period up to start of circulation of distilled water inside the tank Press...

Page 34: ...lectric conductivity and when the value is the greater the better is purity When obtaining specific resistivity from electric conductivity where specific resistivity is R and electric conductivityρ R Ω m 1 S m or R 10 Ω m 1 10 S m ４４ So the theoretical value of pure water is as follows R 18 3 104 Ω m 18 3MΩ cm 25 Take notice that the resistivity is displayed in integer form not in decimal in the ...

Page 35: ...ase of WG270 the quality of distilled water stored in the distilled water tank may be worse than the A4 level quality temporarily because of contact with the atmospheric air WG270 is equipped with the function to recover the water quality of such pure water to the A4 level by means of circulation under ultraviolet ray irradiation and removal of CO2 gas It may take hours for the distilled water sto...

Page 36: ...ry 5 Error History 6 Outage History 7 Water Alarm 8 Pump Manual 9 Language 10 Resume FUNC 2 Setting display of each item 2 1 Setting of ON OFF of buzzer sound Buzzer 1 Key Click 2 Error Buzz To set a key clicking sound alarm buzzer sound 1 Select an item of submenu by pressing key 2 Confirm the item by pressing M key The selection screen appears 3 Specify ON or OFF of each item by pressing key and...

Page 37: ...g When the distilled water tank is full this pump stops To sample pure water while this pump is stopped set this pump normally ON in the sub menu and sample pure water after stabilization of the water quality This pump can be set to normal operation from the sub menu while the distillation water tank is full 2 If the supply water circulation pump has been set to normally ON its setting is cancelle...

Page 38: ...exceeds 20 records the oldest record is deleted 2 7 Water cutoff occurrence history Water Alarm History No 1 05 09 29 12 25 05 09 29 12 30 To display the water cutoff occurrence history 1 Confirm the maintenance history by pressing key 2 Pressing F key returns to the previous screen Up to 20 records are displayed for each change history If it exceeds 20 records the oldest record is deleted 2 8 Pum...

Page 39: ...tact with human body wash it away with clean water Neutralize the liquid with neutralizer such as sodium hydroxide after washing Ensure neutralization with pH test paper etc Do not use empty container for beverage Do not allow detergent to directly flow into agricultural irrigation canal or fields because it causes withering of rice crop 4 Do not step on this unit Do not step on this unit It will ...

Page 40: ...can be extended substantially Replacement of deaeration membrane module About one year Exchange message appears in the indication area Throughput Maintains the specific resistance of distilled water to1 0 MΩ cm or more Replacement of TOC reduction UV lamp About 4000 hours Exchange message appears in the indication area Throughput TOC of the distilled water stored in the tank may be maintained at 5...

Page 41: ...ignated invoice attached to a new cartridge and send it with the used cartridge to us We promote the reasonable disposal collection and recycling of cartridge for environmental protection After replacement of pre treatment cartridge membrane filter ion exchange resin cartridge and high purity cartridge press the reset switch on the backside of front door with power of the unit ON for two seconds T...

Page 42: ... and boiler water supply and drain port turn the hose band by use of tool and displace the engaged portion serrated portion Take care in disconnecting because excessive force applied to glass may cause damage 5 Disconnect the hole plug at left plate remove four screws with a screw driver then remove the left plate 6 Loosen 4 screws on the right of terminal block located at the right top of the bod...

Page 43: ...ng liquid from spilling 4 Pour in washing liquid through connection port with condenser with heater turned on Most scale is removed in 4 to 5 hours approximately Drain washing liquid in the boiler If much scale is distiller deposited pour in washing liquid newly and repeat washing 1 When scale removing work is finished take the heater out of boiler and wash each of them enough with city water Here...

Page 44: ...eutralizer such as sodium hydroxide In neutralization check that it is neutral by use of pH test paper etc Principal component of scale detergent Sulfamic acid and pH of water solution Acidic approximately 1 3 In storing this detergent seal the agent and store in cold and dark place avoiding high temperature and humidity 4 In handling this detergent be sure to use protective tools gloves mask and ...

Page 45: ... and secure with the hose band Installation of condenser 1 Place packing in the connection port of boiler with condenser and secure with connecting hardware so that the boiler and condenser are placed in the same direction Inlet Outlet Boiler Condenser Connecting Hardware 2 Connect the hose respectively to the cooling water inlet outlet and distilled water outlet of condenser 3 Close the boiler wa...

Page 46: ...order to prevent soiling by hand Packing 9 Install on the boiler so that YK W 3 mark of the heater is faced up 10 Feed the heater lead wire through the grommet check the heater lead wire attaching position and secure to the terminal block 11 Mount the left side plate 12 Close the boiler water drain cock 13 Close the front door and then open the tap 14 Turn on the earth leakage breaker 15 The stand...

Page 47: ...ng the procedure Replacement of Hose Be sure to use a hose specified by Yamato Scientific for replacement Distilled water tank drain method 1 Turn OFF the earth leakage breaker of the unit to OFF 2 Take out thr hose in the lower portion on the backside of system 3 There is a cap at the end of hose Remove the cap and drain the distilled water tank 4 When draining is over be sure to reset the cap fi...

Page 48: ...xing the ion exchange resin CPC N and remove a cover plate of the TOC reduction UV lamp See Photos 2 and 3 Photo 3 6 Remove screws at four points on top of the TOC reduction UV lamp 7 Raise the socket and remove the lamp 8 Remove the lamp from the socket 9 For installation reverse the above procedure Never touch the quartz glass directly during replacement of the UV lamp TOC reduction UV lamp unit...

Page 49: ...TOC reduction UV lamp ON glow on top of the tank Normally the TOC reduction UV lamp does not go ON unless the TOC reduction system is activated Checking of the TOC reduction UV lamp and TOC reduction UV lamp ON glow can be made with ease by turning ON the TOC reduction UV lamp ON switch The TOC reduction UV lamp ON switch is automatically reset to OFF when released TOC reduction UV lamp switch TOC...

Page 50: ...oto 2 4 Remove the pre treatment cartridge and ion exchange resin CPC N 5 Remove a plate fixing the ion exchange resin CPC N See Photos 2 and 3 Photo 3 6 Remove the piping connected to the deaeration membrane module as well as fixing screws 7 For installation reverse the above procedure TOC reduction UV lamp unit Deaeration menbrance module Vaccum pump for deaeration menbrance module ...

Page 51: ...longation Bearing Request repair if grease shortage abnormal sound or abnormal motor vibration chattering is detected 3 Replacing the consumables Caution Be sure to turn OFF power supply to the unit before proceeding to replacement of consumables When replacing refer to the exploded diagram Depending on the diassembling portion special tool may be necessary to handle a part of components a Replaci...

Page 52: ... 242 etc to cross recessed pan head machine screws M4x6 Tighten screws with a torque of 1 2 1 3 N m c Replacing suction exhaust valves special tool necessary Remove one cross recessed pan head machine screw M4 6 of head cover and remove the head gasket Remove four cross recessed pan head machine screws M4 12 with SW of the pump head Remove the screw M3 4 and valve holder on both sides of pump head...

Page 53: ...tap is closed then wait for 30 minutes or more and open the front door 2 Open the boiler water drain cock 3 Make sure that all water in the boiler and float cylinder is drained 4 Be sure to close the boiler water drain cock If boiler water drain cock is opened in next use water is not fed into the boiler and distillation is not started When the distilled water has been left stored in the tank for ...

Page 54: ...elow Component Name Material Main components of exterior Exterior Made of iron bonded steel plate melamine resin baking finish Exterior rear plate Made of iron bonded steel plate melamine resin baking finish Door Made of iron bonded steel plate melamine resin baking finish Door rear plate Stainless steel plate SUS 304 Mounting plate painted Made of iron bonded steel plate melamine resin baking fin...

Page 55: ...carbonate Main components of piping system Water supply hose Vinyl chloride Drain hose Ethylene propyne Hose transparent Vinyl Hose milky transparent Silicon Hose clamp Polyacetal Hose nipple resin black Polyamide Hose nipple resin white Polypropylene Hose nipple metal Brass Main components of electric system Pump Casing Polypropylene Impeller Polypropylene Magnet Ferrite magnet Motor case Iron Ro...

Page 56: ...ctivity of pure water exceeds 0 2 10 4 S m Change the ion exchange resin Press and hold the reset switch on backside of the door till a beep is heard Then the alarm indication is reset Membrane filter for distilled water exchange notification It s time to exchange Distilled Water Membrane Filter When 3 months passed under continuous energizing condition Change the membrane filter for distilled wat...

Page 57: ...odule Keep pressing the reset switch on the door backside for an extended period of time The confirmation sound is issued and the alarm display is reset Maintenance time notification It s time to maintenance Service Call When 3 years passed under continuous energizing condition Perform maintenance of the unit Press and hold the reset switch on backside of the door till a beep is heard Then the ala...

Page 58: ...vice Call When temperature of the heater did not rise after certain time passed during distillation Change the heater Tank water level meter error Tank Water Sensor Error Service Call When the condition of the float contacting points in the tank water level meter becomes abnormal Change the float switch Pure water conductivity meter N error Ion Exchange N Sensor Error Service Call When the state o...

Page 59: ...vel error passed after starting water supply to the boiler Check the feedwater solenoid valve and feedwater path whether manual drain cock is opened or not Water level meter of boiler error Boiler Water Sensor Error Service Call When the condition of the float contacting points in the float pipe becomes abnormal Change the float switch Circulation pump error PUMP Erroe Service Call When the time h...

Page 60: ... the door 5 Turn on the earth breaker and press POWER key Now the defect is repaired and the unit starts normal operation How to remove the lower front panel of WG270 1 Remove the screws at left right positions of the lower front panel 2 Pull the panel frontward Be careful of the cable of the drain switch specially used for water sampling table 3 Disconnect the cable of the drain switch for water ...

Page 61: ... is not accumulated Defect of initial boiled water drain solenoid valve Defect of piping Distilled water is not stored Defect of float switch Water is not sampled Defect of Ion exchanged water Distilled water sampling solenoid valve Defect of distilled water sampling pipe Defect of piping Measures in emergency Error indications causes This unit has a self diagnosis function When a trouble occurs d...

Page 62: ... visits your site The guarantee card will be delivered from the shop from which you have purchased our product or our office Confirm that the shop name and the date of purchase are entered and read the card carefully Keep the card with care The guarantee period is one year from the date of purchase Free repair may be available according to the content of the card For repair after expiration of the...

Page 63: ...m 2 Water leakage detection Water leakage detector forcefully shut off the feedwater solenoid valve when water leakage is detected Distilled water storage tank 20 PE tank Water sampling table Slide out type Load bearing capacity 10kg For 5 beaker with handle Water level detection Lead switch five level detection also used for distillation control function Standard Raw water pressure range 0 5 to 5...

Page 64: ...６０ 11 Wiring Diagram WG270 ...

Page 65: ...quality gauge CPC H MV6 Distilled water sampling solenoid valve WL Water leakage detector MV7 Ion exchange water sampling solenoid valve FL1 Distilled water flow gauge MV9 Three way solenoid valve for vaccum FL2 Ion exchange water flow gauge P1 Distilled water circulation sampling pump Fs 1 Control float switch P2 Deaeration membrane vacuum pump Fs 2 Control float switch P3 Ion water circulation p...

Page 66: ...ay 2050000056 G7L 1A TUB 100V Omron MV1 Raw water solenoid valve LT00014451 AG3X A300 100V CKD MV2 Boiler water supply solenoid valve LT00014450 J241 811 CKD MV3 Cooling water solenoid valve LT00014453 AB2X 1242 CKD MV4 Initial distilled water drain solenoid valve A0060104 J241 120 CKD MV5 Boiler drain solenoid valve A0060109 J244 023 CKD MV6 Distilled water sampling solenoid valve A0060104 J241 1...

Page 67: ...eter 1260010005 FHK 33 Yamato Scientific UV TOC reduction UV lamp ﾟ LT00019420 SGL 180T4U Z Nippo Electric UV B Stabilizer LT00019424 FBAB 11L US9 NEC UV G Glow LT00024700 FE 7E X Matsushita Electric Works TF Transformer 2180020010 AD21 02KB2 Toyozumi ...

Page 68: ...s 1 Ion exchange cartridge CPC H About1200 liters 1 Distilled water membrane filter About3 months 1 Pure water membrane filter About3 months 1 Deaeration membrane module About1 year 1 Consumables of vacuum pump 10000 hours 1 Diaphragm 2 2 Suction exhaust valve 4 3 Head basket 2 4 Bearing 1 TOC reduction UV lamp About4000 hours 1 Glow About1 year 1 ...

Page 69: ...te and other perchlorates Potassium Peroxide Sodium Peroxide Barium Peroxide and other inorganic peroxides Potassium Nitrate Sodium Nitrate Ammonium Nitrate and other nitrates Sodium Chlorite and other chlorites Calcium Hypochlorite and other hypochlorites Flammable Substances Ethyl Ether Gasoline Acetaldehyde Propylene Chloride Carbon Disulfide and other substances with ignition point at a degree...

Page 70: ......

Page 71: ...is document forbids Unexpected accidents or breakdown may result in Note The contents of this document may be changed in future without notice Any books with missing pages or disorderly binding may be replaced Instruction Manual for Water Purifier Super Auto Still Model WG270 First Edition June 1 2017 Yamato Scientific America Inc 925 Walsh Avenue Santa Clara CA 95050 Phone 800 292 6286 408 235 77...

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