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Yamato WG270 Instruction Manual

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Water Purifier
SUPER AUTO STILL
Model
Instruction Manual
- First Edition -
 Thank 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.
Yamato Scientific America Inc．
Santa Clara，CA
WG270
Printed on recycled paper

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  • Page 1 Instruction Manual - First Edition -  Thank 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.

  • Page 3: Table Of Contents

    Contentes 1. Cautions in Using with Safety......................１ Explanation ............................１ Table of Illustrated Symbols ......................２ Fundamental Matters of "WARNING!" and "CAUTION!" ..............３ 2. Before Using this unit ......................... ４ Requirements for Installation ......................４ 3. Description and Function of Each Part..................１５ Main Unit ............................
  • 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: Explanation

    1. Cautions in Using with Safety Explanation MEANING OF ILLUSTRATED SYMBOLS Illustrated Symbols Various symbols are used in this safety manual in order to use the unit without danger of injury and damage of the unit. A list of problems caused by ignoring the warnings and improper handling is divided as shown below.Be sure that you understand the warnings and cautions in this manual before operating the unit.

  • Page 6: Table Of Illustrated Symbols

    1. Cautions in Using with Safety Table of Illustrated Symbols Warning Warning, Warning, Warning, Warning, Warning, generally high voltage high drive train explosive temperature Caution Caution, Caution, Caution, Caution, Caution, generally electrical shock scald no road heating not to drench Caution, Caution, water only...

  • Page 7: Fundamental Matters Of "Warning!" And "Caution

    1. Cautions in Using with Safety Fundamental Matters of "WARNING!" and "CAUTION!" WARNING! Do not use this unit in an area where there is flammable or explosive gas Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion-proof.

  • Page 8: Before Using This Unit

    2. Before Using this unit Requirements for Installation WARNING! 1. Be sure to connect grounding wire.  Always connect the equipment to the ground. If the equipment is not grounded, ground leakage, if any, may not activate the ground leakage breaker, resulting in extremely-hazardous electric shock.
  • Page 9  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 procedure described in the instruction manual.
  • Page 10  Set this unit to the flattest place. Setting this unit on rough or slope place could cause the unexpectible trouble or malfunction. The unit WG270 weighs 55kg gross. Two or more persons are required for carrying or setting these units.
  • Page 11 2. Before Using this unit Requirements for Installation WARNING! 9. Observe the specified pressure range of raw water from waterworks  Apply the range of city water pressure between 0.5 - 5 X 100kPa (0.5 - 5kgf/cm ) including nighttime. ...
  • Page 12 2. Before Using this unit Requirements for Installation WARNING! 12. Connection on body side 1. Remove the rubber cap from the water supply port plug ⑧. Body side 2. Insert the socket ⑨ securely to the plug ⑧ on body side with the sleeve slid in the arrow direction.
  • Page 13 2. Before Using this unit Requirements for Installation WARNING! 16. Connect the drain hose securely  If the drain hose is not connected securely, it may be disconnected, leaking water in the unit, or leading to trouble of system. 1. Pick up the drain hose (with elbow) and the hose clamp from the main unit accessories. 2.
  • Page 14  Drain trap makes temperature fall by accumulating cooled drain water temporarily. Further, it mixes city water and cooled-down drain water, makes mixed water temperature fall, then lets drain to sink equipment.  Contact your dealer or Yamato Scientific sales office for detail of drain trap. １０...
  • Page 15 2. Before Using this unit Requirements for Installation WARNING! 20. Install firmly the ion exchange resin cartridge (CPC-N) and high-purity cartridge (CPC-H).  Install the ion exchange resin cartridge (CPC-N) and high-purity cartridge (CPC-H) following the procedure shown below.  Connect securely because insecure connection may cause water leakage. 1.
  • Page 16 2. Before Using this unit Requirements for Installation WARNING! 21. Secure the pre-treatment cartridge securely  Connect the hose in the body securely following the procedure shown below.  Insecure connection may cause disconnection of connection hose, resulting in accident by water leakage.
  • Page 17 2. Before Using this unit Requirements for Installation WARNING! 22. Install the membrane filter firmly.  Install the membrane filter as follows:  Unless firm connection is made, water may leak from the threaded portion and may be mixed into and contaminate the sampled pure water. Always ensure firm connection. （1）...
  • Page 18 A4 level by means of circulation under ultraviolet ray irradiation and removal of CO2 gas.  It may take hours for the distilled water stored in the tank after initial start of WG270 to reach the A4 level water quality. Carry out cleaning of the tank inside as follows: (1) Install and start operation of WG270 system.

  • Page 19: Description And Function Of Each Part

    3. Description and Function of Each Part Main Unit WG270 Distilled water tank Reset switch Boiler Heater Heater terminal block High-purity cartridge (CPC-H) Drain cock （CPC-H） Ion exchange resin cartridge (CPC-N) Leakage detection electrode Water sampling table Pre-treatment cartridge Product number sticker...

  • Page 20: Water Sampling Table

    3. Description and Function of Each Part Water Sampling Table Water sampling table Use the water sampling table by pulling it out frontward. Because coolant for condenser is used, so for draining the water in the following cases (and coolant is not flowed), press the drain switch specifically used for the water sampling table at right side of the unit.

  • Page 21: Piping System View

    3. Description and Function of Each Part Piping System View 1. Pressure reduction valve 22. Distilled water quality gauge 2. Pressure switch electrode 3. Cooling water solenoid valve 23. Deaeration membrane module 4. Raw water supply solenoid valve 24. Solenoid valve for vacuum pump 5.

  • Page 22: Principle Of Operation

    3. Description and Function of Each Part Principle of Operation Description of the operation mechanism of WG270. (1) Drain of the boiler  Set the earth-leakage breaker to “ON”, and the standby screen appears in about four seconds. In this state, press the POWER key, the boiler drain solenoid valve ⑬ and cooling water solenoid valve ③...
  • Page 23 3. Description and Function of Each Part Principle of Operation (3) Flow of Cooling Water During distillation, water is supplied and discharged in the order: ① pressure-reducing valve, ③ cooling water solenoid valve and condenser ⑰. When the distilled water tank is full, or when ion exchanged water is sampled, distillation is stopped, and the cooling water is also stopped automatically.
  • Page 24 3. Description and Function of Each Part Principle of Operation (5) Sampling Ion Exchanged Water  Ion exchange water is sampled by way of the pressure-reducing valve ①, raw water supply solenoid valve ④, pre-treatment cartridge ⑤, supply-water circulation pump ⑥, ion exchange resin cartridge ⑦(CPC-N), ion exchange water quality electrode ⑧...
  • Page 25 3. Description and Function of Each Part Principle of Operation (6) TOC Reduction system  The TOC reduction system consists of returning the distilled water stored in the distilled water tank, via TOC reduction UV, deaeration membrane module, distilled water quality electrode, and circulation return check valve, to the distilled water tank by means of the distilled water sampling pump.

  • Page 26: Control Panel

    3. Description and Function of Each Part Control Panel ⑪ ① POWER ⑩ ② ⑨ WATER CONDUCTIVITY LEVEL ③ ⑧ FULL MEASURED CONTINUOUS FILL ⑦ EMPTY ⑬ ⑫ DISTILLED PURE WATER WATER ④ ⑥ ⑤ Name Operation/Action ① POWER key Turns on/off the power of the controller.

  • Page 27: Operation Method

    4. Operation Method Setup and Check before Use WARNING! 1. Check of water supply  Check that the water supply hose is securely connected.  Open the tap.  Check that water does not leak from connection of water supply hose. 2.

  • Page 28: Operation Procedure

    When first-time using the unit, perform calibration operation. POWER 1. Turn on the earth leakage breaker. ② Yamato Auto Still 2. Press POWER key while holding PURE WATER WG270 WG250 2005/11/1　12：00 key and DISTILLED WATER key. 3. After five minutes passed, distillation starts WATER CONDUCTIVITY LEVEL automatically.

  • Page 29: Sampling Of Pure Water

    ４. Operation Method Sampling of Pure Water Continuous collection of pure water During distillation or when the distilled water tank is full, pressing the PURE WATER key while “CONTINUOUS” of the sampling selector POWER lamp is ON causes the pure water lamp goes ON, enabling sampling of the pure water.

  • Page 30: Collection Of Measured Amount Of Pure Water

    In Distillation 1. Set the amount of pure water by pressing ▲▼ DW-Conductivity 0.85×10 key. Measured: 20.0L WG270: Setting can be made up to 20 liters WATER CONDUCTIVITY LEVEL 2. After setting, pressing PURE WATER key starts FULL MEASURED water collection.

  • Page 31: Collection Of Measured Amount Of Distilled Water

    In Distillation DW-Conductivity 1. Set the amount of distilled water by pressing ▲▼ 0.85×10 Measured: 20.0L key. WG270: Setting can be made up to 20 liters WATER CONDUCTIVITY LEVEL 2. After setting, pressing DISTILLED WATER key FULL MEASURED starts water collection.
  • Page 32 ４. Operation Method Collection of Measured Amount of Distilled Water In case that the tank becomes empty while collecting water 1. The left screen is displayed when the tank becomes empty during collecting water, and POWER DISTILLED WATER lamp blinks and operation of water collection is suspended.

  • Page 33: Display Of Water Quality

    ４. Operation Method Display of Water Quality Switching conductivity unit Switch the conductivity unit. POWER Pressing CONDUCTIVITY key for 2 seconds switches the conductivity unit. DW sampling DW-Conductivity 0.85×10 Continuous In case of switching the conductivity unit during WATER collecting distilled water CONDUCTIVITY LEVEL FULL...
  • Page 34 ４. Operation Method Display of Water Quality Measurement of Electric Conductivity The water conductivity meter on the control panel displays the conductivity at the outlets of the ion-exchange resin cartridge and the condenser for distilled water. The displayed value can be used as an index for replacing the ion-exchange resin cartridge.
  • Page 35 1 or less 1 or less  In the case 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.

  • Page 36: Setting/Display Of Submenu

    ４. Operation Method Setting/Display of Submenu 1. Setting/display of submenu Perform setting/display of submenu. 1. Pressing M key for 2 seconds displays the submenu. 2. Select the item to be set or displayed by pressing ▲▼ POWER key. Sub-Menu 3. Pressing M key confirms the setting and shifts to the ③...
  • Page 37 ４. Operation Method Setting/Display of Submenu 2. Setting/display of each item 2.3. Consumables replacement history For display of the history of the pre-treatment filter・ion exchange resin（N）・ EXCH History Ion exchange resin （H） ・ distilled water M filter・ 1. Hollow Filter ion change water M filter・deaeration membrane 2.
  • Page 38 ４. Operation Method Setting/Display of Submenu To display the maintenance history: 2.4. Maintenance history 1. Confirm the maintenance history by pressing ▲▼ key. Maintenance 2. Pressing F key returns to the previous screen. History No.1  Up to 20 records are displayed for each change history. If it exceeds 20 records, the oldest record is deleted.

  • Page 39: Handling Precautions

    Immediately contact dealers or Yamato Scientific Co., Ltd. sales office for inspection. If this procedure is not followed, fire or electrical shock may result. Never perform repair work yourself, since it is dangerous and not recommended.

  • Page 40: Maintenance Method

    6. Maintenance Method Inspection and Maintenance Timing of maintenance and inspection (Perform daily inspection for stable use of product.) Maintenance/check Reference for timing Remarks items Throughput: About 5000 liters of city water in Approx. 6 months Replacement of Tokyo. Exchange message appears pre-treatment cartridge If the quality of raw water is not good, perform on the indication area.

  • Page 41: Replacement Of Ion Exchange Resin Cartridge

    ６. Maintenance Method Replacement of ion exchange resin cartridge When a cartridge is stored for a long time, deterioration of water quality and fall of processing capacity are found; therefore prepare a spare cartridge in a planned manner for replacement timing. Standard for storage is about 4 months.

  • Page 42: Washing Of Distiller

    ６. Maintenance Method Washing of Distiller  Dismounting of Distiller 1. Turn "OFF" the earth leakage breaker of the unit. 2. Close the tap. 3. Check that the boiler is not hot (longer than 30 minutes after the breaker is turned "OFF"), then open the front door of the unit, and open the boiler water drain cock.
  • Page 43 ６. Maintenance Method Washing of Distiller 1) Disconnect the heater lead wire from grommet. Note that, do not bend or pull the heater lead wire more than necessary. 2) Remove the two screws of boiler securing band with a Phillips screwdriver, and take the boiler and condenser out of the body.
  • Page 44 ６. Maintenance Method Washing of Distiller  Washing of Condenser 1. Pour detergent liquid into the cooling pipe of condenser. (See Page 39 "Washing of boiler" for formulating detergent liquid.) Detergent Liquid Hose Connection Port 2. If detergent liquid should flow out of hose connection port, seal with rubber stopper. Most fur can be removed in 4 - 5 hours approximately.
  • Page 45 ６. Maintenance Method Washing of Distiller 2. Attach 4 heater lead terminals to the terminal block. Heater Lead (wire diameter, thick) Heater Lead (wire diameter, thin) 3. Install the left side plate on the body. 4. Insert the hose to the boiler water supply and drain port, and secure with the hose band. ...

  • Page 46: Replacement Of Heater

    ６. Maintenance Method Replacement of Heater  If the heater should be disconnected or damaged due to deposit of scale, replace it by the procedure below. (Also refer to Pages 38 to 41"6. Maintenance Method " in working.) 1. Turn "OFF" the earth leakage breaker of this unit. 2.

  • Page 47: Washing Of Water Supply Hose Filter

    Tap side 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.

  • Page 48: Replacing The Toc Reduction Uv Lamp

    ６. Maintenance Method Replacing the TOC reduction UV lamp 1. Turn OFF the earth leakage breaker of the unit. 2. Close the tap. 3. Open the door of the main body. (See Photo 1) Photo １ Photo 2 4. Remove the pre-treatment cartridge and ion exchange resin (CPC-N). 5.

  • Page 49: Checking If The Toc Reduction Uv Lamp Goes On

    ６. Maintenance Method Checking if the TOC reduction UV lamp goes ON  Checking if the TOC reduction UV lamp goes ON. Open the front door of the unit. There are the switch to turn ON the TOC reduction UV lamp of Photo 1 and the TOC reduction UV lamp ON glow on top of the tank. TOC reduction UV lamp switch TOC reduction UV...

  • Page 50: Replacing The Deaeration Membrane Module

    ６. Maintenance Method Replacing the deaeration membrane module 1. Turn OFF the earth leakage breaker of the unit. 2. Close the tap. 3. Open the door of the main body. (See Photo 1) Photo １ Photo 2 4. Remove the pre-treatment cartridge and ion exchange resin (CPC-N). 5.

  • Page 51: Vacuum Pump

    ６. Maintenance Method Vacuum pump 1. Maintenance Check as follows at least once every three days during operation: (1) Check for any abnormal sound. (2) Check if the pump is abnormally hot. (3) Check if exhaust is made correctly. 2. Regular inspection (1) List of consumables Parts Quantity...
  • Page 52 ６. Maintenance Method Vacuum pump Replacing the head gasket Remove one cross-recessed pan-head machine screw （M4×6）⑦ of head cover ⑥. There is a black head gasket ⑧ under the head cover. Remove this gasket and replace the new one. （※） There are total of two hea gasket ⑧, one for each pump head. Reassemble the head gasket and head cover in this order to the pump head.また、...

  • Page 53: Long Storage And Disposal

    7. Long storage and disposal When not using this unit for long term  If this unit is to be put out of service for a long time, be sure to turn of the earth leakage breaker of this unit for safety, and close the tap. Water in the boiler and distilled water tank, if stored as it is, will deteriorate in quality due to generated bacteria or algae.

  • Page 54: Considerations On Disposing

    7. Long storage and disposal WARNING! 1. When disposing…  Dispose of the unit as bulky waste.  When disposing, avoid a place visited by playing children frequently. 2. When the unit is out of service at night and on holidays ...
  • Page 55 7. Long storage and disposal Considerations on disposing Component Name Material Main components of water circuit system Resin cylinder case Polypropylene Ion exchange resin Polystyrene Resin Water quality gauge electrode Titanium Heater Ceramic Heater mounting nut Teflon TOC holder Hard glass UV lamp Hard glass Hard tube...

  • Page 56: In The Event Of Failure

    8. In the Event of Failure… Failure indication and Its Contents Alarm Indication Condition Corrective measures When raw water pressure Feed Water Alarm Water cutoff Check decreases (＜0.5kg f/cm Check raw water. alarm Flow & Pressure when water cutoff occurs Change pretreatment filter.
  • Page 57 ８. In the Event of Failure… Failure indication and Its Contents Replace the deaeration It’s time membrane module. to exchange Keep pressing Deaeration reset switch on the When concecutive water membrane door backside for an module supply year extended period exchange passed time.
  • Page 58 ８. In the Event of Failure… Failure indication and Its Contents Cause Symptom Countermeasur Error Indication Turn the breaker When the setting value which on again. If the is memorized in the memory Controller Controller Error trouble persists, chip cannot be read properly, error Service Call please call our...
  • Page 59 ８. In the Event of Failure… Failure indication and Its Contents Others Indication Countermeasure Cause Symptom Check the When the heater solenoid valve for operation water level drain and drain input kept OFF even if Boiler Water path. the time for required Boiler drain Waste Error...

  • Page 60: Remedy For Trouble

    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.

  • Page 61: Trouble Shooting

    ８. In the Event of Failure… Trouble Shooting When a trouble occurs Condition Check the following  Defect of raw water supply solenoid valve.  Insufficient city water pressure or water failure. Water is not supplied.  Defect of pressure switch. ...

  • Page 62: After-Sales Service

    9. After-sales Service When requesting the repair Guarantee card (attached separately） ● The guarantee card will be delivered from the If any error should occur, record the error message and stop operation shop from which you have purchased our product immediately.

  • Page 63: Specifications

    (*1) External dimension 600×660×780 mm (Width X Depth X Height) Weight Approx.55 kg WG270 : Water supply hose (with connection port), drain hose assembly, and connection hose 1 respectively Operation manual: This manual Guarantee card: Hose clamp: Scale washing agent (1kg):...

  • Page 64: Wiring Diagram

    11. Wiring Diagram WG270 ６０...
  • Page 65 11. Wiring Diagram WG270 Symbol Part name Symbol Part name Earth leakage breaker Main relay T1,T2,T3 Terminal block Raw water solenoid valve Heater Boiler water supply solenoid valve Temperature sensor Cooling water solenoid valve Initial accumulated water drain Distilled water quality gauge...

  • Page 66: Replacement Parts List

    12. Replacement Parts List WG270 Symbol Parts Code No. Specifications Manufacturer Earth leakage breaker 2060050002 BJS2032N 20A Panasonic Terminal board LT00035672 MKH-250ABC-4P Terminal Sakazume Terminal board A0050115 TB-20C 4P Electric Terminal board LT00035673 MKH-250ABC-5P Terminal Heater (temperature H，OH 2420016003 YK-W-3...
  • Page 67 12. Replacement Parts List Pure water flow meter 1260010005 FHK-33 Yamato Scientific reduction LT00019420 SGL-180T4U Z Nippo Electric lamp ﾟ UV-B Stabilizer LT00019424 FBAB-11L-US9 Matsushita UV-G Glow LT00024700 FE-7E/X Electric Works Transformer 2180020010 AD21-02KB2 Toyozumi ６３...

  • Page 68: Consumable Parts

    13. Consumable parts WG270 Parts Replacement timing Quantity Pre-treatment cartridge About 6 months Ion exchange cartridge(CPC-N) About 600 liters Ion exchange cartridge(CPC-H) About1200 liters Distilled water membrane filter About3 months Pure water membrane filter About3 months Deaeration membrane module About1 year...

  • Page 69: List Of Dangerous Substances

    14. List of Dangerous Substances Never process any explosive, flammable samples and also samples contained with those substances. ①Nitroglycol, Glycerine trinitrate, Cellulose Nitrate and other explosive nitrate esters ②Trinitrobenzen, Trinitrotoluene, Picric Acid and other explosive nitro compounds ③Acetyl Hydroperoxide, Methyl Ethyl Ketone Peroxide, Benzoyl Peroxide and other organic peroxides ④Metallic Azide, including Sodium Azide, etc.
  • Page 71 Responsibility Please follow the instructions in this document when using this unit. Yamato Scientific has no responsibility for the accidents or breakdown of device if it is used with a failure to comply. Never conduct what this document forbids. Unexpected accidents or breakdown may result in.

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