INSTRUCTION / INSTALLATION / TECHNICAL MANUAL

Suntem INSTRUCTION / INSTALLATION / TECHNICAL MANUAL ADAPTABLE MODEL: ST-D520 ST-D530 ST-D540 Thank you for purchasing the dental therapy unit produced by our company. Please read this manual carefully for making best use of all functions of this product. Please keep this manual for reference in case of problem occurred to the dental unit. The manufacturing of this product conforms to the 93/42/EEC directive issued by EU. FOSHAN SUNTEM MEDICAL INSTRUMENT CO., LTD

CATALOG I. SAFETY INFORMATION II. 1 III. FIGURES AND SYMBOLS IV. 1 V. MATTERS OF CONCERNMENT 2 VI. TRANSPORTATION AND STORAGE 3 VII. PRODUCT INTRODUCTION 3 VIII. USING CONDITIONS IX. 3 X. BASIC PARAMETERS XI. 4 XII. XIII. XIV. XV. XVI. XVII. PRODUCT STRUCTURE DIAGRAM 5 INSTALLATION 6 AU JUSTMENT 7 USING INSTRUCTIONS 8 1. INSTRUCTIONS TRAY CONTROLLING PANEL. 8 2. ASSISTANT TRAY CONTROLLING PANEL 9 3. WATER TANK.. 10 4. FOOT CONTROLLER 10 5. VALVE OF HANDPIECE. 10 6. OPERATING LIGHT 11 7. X-RAY FILM VIEW 11 8. 3-WAY SYRINGE AND SUCTIONS 11 9. SYSTEM INITIALIZATION 11 MAINTENANCE AND REPAIR.. 12 GUIDE TROUBLESHOOTING 13 CIRCUIT SKETCH MAP 13 CIRCUIT DIAGRAM OF THE PATIENT CHAIR 14 WATER AND AIR PRINCIPLE.. 14 WATER AND AIR LINE SKETCH MAP... 15 I. SAFETY INFORMATION Be sure to read through this operating manual to obtain a correct using of this unit. In case of any special requirement, please contact the dealer of our company. WARNING: 1. Please neither put the appliance in moist environment nor open the tank body for the sake of reducing the possibility of fire and electric shock. In case of maintenance, please refer to professional maintenance man.

2. In case of any smoke or other abnormal circumstance which may result in fire or other conditions, please unplug the power connection and contact the local dealer or the after-sale service department. 3. In case water enters into the equipment, which may result in creepage, please unplug the power connection and contact the local dealer or the after-sale service department. 4. In case of any undefined fault of the equipment, please unplug the power connection and contact the local dealer. 5. Please don t disassemble or refit this product, otherwise, some accessories and components may be damaged or result in electric shock. 6. The power line shall not be damaged. In case the power line is damaged, please disconnect the power supply. Don t touch the power supply with hand directly. Please contact the local dealer to change the damaged power line. 7. The product is adaptable to the voltage of a.c.220v-230v / 50Hz-60Hz. In case of work under other voltage, dangers may occur. 8. Please care the weather change. In case of thunder, please disconnect the power supply. 9. Please don t touch the power plug with wet hands, which may result in electric shock. 10. Please don t use insecticide, alcohol, thinner and chemical liquid to clean the equipment, which may peel or rot its surface. 11. Please don t remanufacture the machine. In case of any damage consequently, it is beyond any maintenance and repair guarantee. 12. In case of the risk of electric shock, please connect the appliance to the grounding power supply which are protected. 13. Please don t replace the power line optionally,in case the dangers occur. TO USERS: This product has undergone the test, which conforms to the requirement of EU s 93/42/EEC, 2007/47/EEC instruction. No hydrargyrum segregator has been installed within the product; therefore, its drainage system cannot filter solid particles and debris, or amalgam alloy. In order to avoid such pollution to the drainage system, please the users to install a hydrargyrum segregator additionally to avoid the drainage pollution. If you want to know more related information, please contact us. PLEASE RECORD THE PRODUCT CODE OF THIS APPLIANCE HERE FOR THE CONVENIENCE OF INQUIRY IN THE FUTURE. II. FIGURES AND SYMBOLS FIGURES AND SYMBOLS DESCRIPTIONS FIGURES AND SYMBOLS DESCRIPTIONS Warning uprising B type equipment Patient chair declining Protect the Grounding terminal Patient chair reclining EU announcement institute Patient chair fore raking

On Spittoon position FIGURES AND SYMBOLS DESCRIPTIONS FIGURES AND SYMBOLS DESCRIPTIONS Off Cuspidor flushing Operating light Cup filling X-ray Film viewer Water heater Move to the limit of two ends pursuant to the line directions Use instructions Emergency stop warning temperature of surface overheat Luminance Step adjustment The waste of Equipment, accessories and packaging shall meet the 2002/96/EC directive issued by EU The same outer packing boxes cannot be stacked over two wooden cases in the transport or storage III. MATTERS OF CONCERNMENT - 15-1. This product can only be used for dental treatment, therapy and operation. 2. The children are forbidden to play near the equipment in order to avoid accidents while touching the equipment. 3. Only use the fuse and accessories recognized by Anle can be used.plears make sure the e power was unplugged in case replace the fuse. 4. This dental unit should not come into contact with any object in its operational range of movement, it is. 5. After using this dental unit r if this dental unit is not os not to be use the patient chair be returned to the lowest position and, water air, and the power supply be cut off. 6. Make sure the pillow is locked before using the patient chair. 7. Don t use the product in high-temperature, high-moisture, vibration, flammable or unbalanced environment. 8. The patient chair is intermittent operation equipment; therefore, the continuous operation cannot exceed 1 min. 9. Read the use instructions before using the handpiece. 10. Read the use instructions before using the curing light machine and the scaler. 11. Connect the water supply before using the water heater in order to avoid short circuit with of dry heating. 12. Contact professional maintenance man for unit repairing or maintenance, disconnect the water, air and power supply before the repair. 13. The product is forbidden to be connected with the power supply for more than 24 hours. Disconnect the water, air and power supply while not using the appliance for long time. 14. It is advised that there are 5 years used life fit this dental unit. The excessive using may result in aging pipes, malfunctions or even accidents. Please contact qualified medical appliance recycle unit to eliminate or change new equipment in time. 15. The operating stool doesn t belong to the basic structure of the dental unit and the guarantee period of the operating stool is three months. 16. The cold light lamp, PU cushion, real leather cushion, glass parts and ceramic parts within the machine are damageable parts and their guarantee period is all three months. 17. The product s quality problems due to manual reasons are beyond the guarantee area. 18. Patient position requirements: height adjustment to the best position for operators operation, is the patient lying on the dental patient chair, and the operator operating i near the patient's head. 19. Emergency stop equipments: in case the emergency, press the emergency stop switch, you can safely terminate the movement of the electric mechanical moving parts. 20. Can not be used under the environment of mixing flammable an aesthetic with air or oxygen or nitrous oxide. IV. TRANSPORTATION AND STORAGE

1. Transportation conditions: be upright; handle with care; and moisture-proof. 2. Transportation environment: temperature 5-40, relativity 80%. 3. Storage environment: temperature 5-40, relativity 80%. No corrosive gas and good indoor ventilation. 4. Superposition quantity limitation: the same outer packing boxes cannot be stacked over two wooden cases in the transport or storage. V. PRODUCT INTRODUCTION 1. FUNCTION AND THE INTENDED USE This product, as a kind of dental appliance that can be adopted by qualified person in the course of dental clinic and its related operation process, is composed by a set of related dental equipment and appliance parts for the purpose of dental diagnosis, therapy and operation. This product mainly include the dental patient chair, dental lamp, instrument tray, 3-way syringe, spitting and water supply system, suctions, cuspidor, film viewer and foot switch. 2. ATTACHMENT LIST NO. ATTACHMENT NAME QUANTITY REMARKS 1 Doctor chair 1 1 set of doctor chair 2 Dental light 1 1 set of dental light 3 Lamp arm 1 1 set of Lamp arm 4 Backrest, Cushion 1 1 set of Back rest and Cushion 5 random file 1 a product qualification certificate. a Product installation instructions. a Product warranty card. 2 sets saliva ejectors. M12*15 Level adjusting screw. 12 mm "L" type six angle wrench. 3 sets 6A fuses and 3 sets 10A fuses. 6 Dental handpiece Optional Attachment 7 Curing light machine Optional Attachment 8 Scaler Optional Attachment 9 Oral cavity endoscope Optional Attachment 10 Amalgam separating device Optional Attachment 3. SAFETY FEATURES Name of product: dental unit Model: see as the Product nameplate Safety class: class I protection type: type B power type: Single phase three cores, net power supply Rated voltage/frequency: a.c.220 V/50 Hz Input power: 350 VA Liquid inlet protection: Foot switch IPX4 This product is a non permanent installation, non common movable type equipment According to the safety degree classification used in the conditions of flammable anaesthetic mixture with air or oxygen or nitrous oxide anaesthetic mixture: non type AP/APG Operating categories: dental patient chair is intermittent operation equipment Mode of operation: Dental patient chair works for 2 minutes and stop 18 points This product has no protective effect to defibrillator, no signal output or input part. Software version number: 6.18 VI. USING CONDITIONS IN ORDER TO MAKE SURE THE NORMAL USE OF THE MACHINE, THE INPUT WATER, AIR, POWER

IN ORDER TO MAKE SURE THE NORMAL USE OF THE MACHINE, THE INPUT WATER, AIR, POWER SUPPLY AND ITS WORK CONDITIONS SHALL MEET THE FOLLOWING PARAMETERS: 1. Air supply: air pressure 0.60 MPa-0.80 MPa, flux>50 L/min, no oil. 2. Water supply: water pressure 0.20 MPa-0.40 MPa, flux>10 L/min, rigidity<25 degree. 3. Power supply: a.c.220 V-230 V, 50 Hz/60 Hz, 10 A. 4. Environment: temperature 5-40, relative moisture 30%-75%. 5. Operation space: LˣWˣH>4 mˣ3 mˣ2 m, The ground is smooth and oblique angle less than 0.5. VII. BASIC PARAMETERS Floor box: Rated voltage: a.c.220 V/50 Hz, Single phase three cores, net power supply Rated power: 350 VA Water filtering aperture: 90 µm Air filtering aperture: 25 µm Cup rinse water supply Water rate: 4 L/min device: Saliva pump: Water pressure: 200 kpa, Air pressure: 500 kpa Saliva ejector: Vacuum 15 kpa, Pump speed 800 ml/min High-power suction: Vacuum 25 kpa, Pump speed 1000 ml/min Water-heater: Instrument tray: X-ray film viewer: Operating light: Foot switch Noise: Dental patient chair: Optional Attachment: Dental handpiece Curing light Scaler Oral cavity endoscope Rated voltage: d.c.24 V Rated power: 400 VA Water temperature: 40 ±5 Angle of rotation: 270 Movement range: 440 mm Disk locking device bearing quality: 5 Kg Rated voltage: a.c.24 V Rated power: 30 VA Luminance: 2 000 lx Rated voltage: a.c.12 V Rated power: 50 VA Luminance: 8 000 lx-20 000 lx Radiant heat: 200 W/m2 (max Luminance) Color rendering index: 85Ra Tripping force: 10 N N 30 N Liquid inlet protection: IPX4 Service life: 25 000 times 70 db A Voltage: d.c.24 V Loading capacity: 1323 N Headrest loading capacity: 300 N Head rack extension range: 120 mm Backrest movement range: 105-170 The highest position of the chair from the groud: 700 mm The lowest position of the chair from the groud: 500 mm The biggest backward angle of the seat cushion: 12 Registration certificate of products inside. Technical parameters can be seen in the Use instructions.

Amalgam separating device Work space: LˣWˣH>4 mˣ3 mˣ2 m VIII. PRODUCT STRUCTURE DIAGRAM 1. STRUCTURE DIAGRAM OF ST-5202. STRUCTURE DIAGRAM OF ST-D530 3. STRUCTURE DIAGRAM OF ST-D540 1. Protective cover 2. Cushion 3. Backrest 4. Headrest 5. 3-way syringe 6. high power suction 7.saliva ejector 8. Assistant control 9. Spittoon 10. cabinet 11. Lamp arm 12.LED light 13. balance arm light 14.tumbler 15.balance arm 16. Film viewer 17. Instrument tray 18. Instrument tray handle 19. Low-speed air motor handpiece 20. High-speed air turbine handpiece

21. 3-way syringe 22. Front cover 23. Armrest 24. Base cover 4. SKETCH MAP OF THE EXTERNAL JUNCTION BOX IX. INSTALLATION 1. INSTALLATION SPACE 1.1. ENVIRONMENT REQUIREMENT

1.1. ENVIRONMENT REQUIREMENT In order use the normal for this dental unit, please install it in a clean, dry and ventilative area, and the floor is in leved and solid. 1.2. SPACE REQUIREMENT Aviod the touching from any ebiects during the dental units in the wooking, the installation space should be reauired the following items: a) The length no shorter than 4000 mm; b) The width no shorter than 2600 mm; c) The height no shorter than 2000 mm. 2. INSTALLATION OF THE PRODUCT 2.1. INSTALLATION AND TRANSPORTATION Open the package, take out four screws that fix the patient chair on the package s board by using M12 external hexagon wrench; and move the patient chair carefully to the installation position. During moving, please don t carry the fragile parts such as the rotation arm, armrest, assistant tary, spittoon unit and plastic cover so as to avoid damage in the excessive moving force. During moving, please stabilize the instrument tray so as to avoid unexpected touching due to its rotation. 2.2. CONNECTION BETWEEN THE SPITTOON UNIT WITH THE PATIENT CHAIR Uplift the spittoon therapy unit to make the cables away from the connection point of patient chair in 100 mm; then connect the cable plugs from patient chair (please connect them according to correct numbers ) to the cables from spittoon unit ;fix the spittoon unit to patient chair by 3 pieces M10 he socket. 2.3. INSTALLATION OF INSTRUMENT TRAY Used with a rotating arm of the decorative cover, connecting head decoration cover into the treatment machine. Handling personnel lifting instrument tray assembly, which is mounted to the treatment machine.installation personnel connect the pipeline according to their numbers. 2.4. BACKREST OF THE PATIENT CHAIR By 3 piece M10 hex socket. Avoid sharp articles to lacerate the backrest s surface in the course of installation. 2.5. CUSHION OF THE PATIENT CHAIR Take out four screws on the cushion s base; re-screw on the cushion through the corresponding four holes, and fix the hexagon nut. Avoid sharp articles to lacerate the cushion s surface in the course of installation.

2.6. INSTALLATION OF BACKREST Take out of the and adjust the backrest on The chair frame. 2.7. INSTALLATION OF OPERATING LIGHT Open the package box of the lamp arm, and connect them in turns according to the figure. Take out the operating light, and screw off the M5 hex socket from the connecting spindle. As in the figure 2, the decorating ring is covered the connecting spindle, connect those plugs from the operating light connecting spindle to the light arm connecting spindle (Note: make sure connecting the correct color wires, and put the insulated cover on them.) insert the wires and plugs in the light arm, finally, insert the operating light connecting spindle to the operating light arm. 2.8. JUNCTION BOX Connect the water supply tubing, air supply tubing and drainage tubing to water source, air source and draginage respectively. During the connecting, make sure that the seals of the connecting joints for water supply tubing and air supply tubing keep in good condition to avoid the leak of water and air. Connect the ground wires to the earth. According to the position where the unit is installed, air tubing, water tubing should reach the desinated position. Water tubing and air tubing should be adopt water pipe in ø8x5 mm PVC external diameter, being connected by elbows. The interal diameter of water flush tubes should be lager than 27.5 mm, with a flush hole left. As the diagram on the right. The draginage tubing should be under the ground at least in 10 mm, otherwise, the back current will be caused in the draginage tubing. The outfall shall be declined for the fluent current. The outfall shall not be twisted, raised or undulant, or put in the water. 2.9. HORIZONTAL ADJUSTMENT Screw six M12 hexagonal bolts into the M12 screw thread holes in the bottom cover of the chair to the level of chair blancing. In the process of adjusting, make sure that bottom cover touches the floor as much as posssible to ensure the stability of the whole set.

2.10. INSTRUMENTS INSTALLATION OF TRAY A. 3-WAY SYRINGE Take out the nozzle of the 3-way syringe, press the meter ring and insert the nozzle, and then release the meter ring to make it back to the original position. If the meter ring cannot recoil to the origin, the insert of the nozzle is not finished. The meter ring should be pressed again to make the nozzle inserted till the meter ring recoils. B. HANDPIECE turn on the water source and air source before installing the handpiece, pull out every handpiece tubing and push on the footswitch, blow off the remained water and air in the tubings, install the handpiece to the tubing connector. Please refer to the handpiece user manual as handpiece using, distinfection and maintenance. X. AU JUSTMENT after using the dental unit, it is better to turn off the main switch, it can be protected the spare parts, lengthends service life, reduce troubleshooting. 1 Open the main switch (water, air and power). When buzzer gives out a sound du, the power lights on the tool tray and the aid frame turn on. And the equipment carries on the self-check. 2. check the connection of water source, make sure there isn t any leakage. 3. check the connection of air source, make sure there isn t any leakage. 4. open air source to examine the indicated number of air pressue meter in the air reducer in the front cover. The normal operating air pressure of the dental unit is 0.55 MPa. If any error occurs, please adjust the knob in the air filtrating and reducing valve to keep the above-mentioned number. XI. USING INSTRUCTIONS don t carry still Please make sure the water, air and power supply have been open while using the product. All the functions set can be saved automatically in case of power off. When the power supply resumes after the power off, there isn tany on safety issue, except the going operation should be shutted temperartty. If to continue the operation, please restart the unit. 1. INSTRUMENT TRAY CONTROLLING PANEL SKETCH MAP OF KEY BOARD OF ST-D520 SKETCH MAP OF KEY BOARD OF ST-D530 SKETCH MAP OF KEY BOARD OF ST-D540 connecting line

1. Position of the patient chair 2. Spittoon chair position 3. Water supple 4. Cuspidor water rushing 5. Constant temperature hot water 6. Film viewer 7. LED light 8. Memory position 9. Reset posistion 10. Set key 1.1. POSITION OF THE PATIENT CHAIR Press each key for long time, then the patient chair shall move according to the identifiers direction. Release the key, then the move stops. : the patient chair upward; : the patient chair downward; : backrest backward of the patient chair; : backrest forward of the patient chair. 1.2. SPITTOON CHAIR POSITION Press, the backrest of the patient chair shall move shortly to the forefront position so that patient may spit and gargle; and press the key again, the backrest will return to the original position. In case of pressing other function keys while the backrest of the patient chair is moving, this key s function will stop automatically. 1.3. WATER SUPPLE Press, supply the gargling water until the pre-set time, during the water supply pressing the key again in the course of water supply, the water supply shall stop. Please refer to 1.10 set key for the instructions of time set. 1.4. CUSPIDOR WATER RUSHING Press, the water will rush the cuspidor for three minutes and stop automatically, in the course of rushing, press the key again, it stops. 1.5. CONSTANT TEMPERATURE HOT WATER Press, the constant temperature heater will start working to heart the water to 40, in case of water temperature decrease, the heater will work automatically (the indicator light flashes in the course of hearting and keeps on when the hot water reaches the pre-set value); press the key again, the heater stops immediately (the indicator light is off). The hot water is only for the purpose of gargling and 3-way syings. (Must connect to the water supply first before using the water heater in order to prevent the water heater from short circuit due to dry heating) 1.6. FILM VIEWER Press, close the power supply of the film viewer; press the key again, turn on the power supply of the film viewer. There s another power switch on the film viewer. 1.7. OPERATING LIGHT Press, turn off the operating light, press the key again, turn on the power supply of the cold light lamp. There s another power switch on the cold operating light. 1.8. MEMORY POSITION The patient chair can define nine memory positions into three groups such as A, B and C with each group having three chair position memory. Press the key of each group, the indicator light turns on and enter into the memory procedures of this group, press one of such three memory keys again, the patient chair may move to the corresponding memory position. Please refer to 1.10 set key for the instructions of self-defining the chair position.

In case of pressing other function keys while the patient chair is moving, this key s function will stop automatically. 1.9. RESET POSITION Press RESET key, the patient chair decilnes to the lowest position and the backrest fore rakes to the foremost position. Press any button duuing its moving, the movement will stop. 1.10. SET KEY A. TIME SETTING OF WATER SUPPLY Step 1: press SET key, the indicator light turns on. Step 2: press key until the water supply to the demanded amount. Step 3: press SET key again, the indicator light turns off, setting finish. This procedure is only setting the time of water supply, if tap water changes, please reset the time. B. MEMORY POSITION SET OF THE PATIENT CHAIR Step 1: press SET key, the indicator light turns on. Step 2: press key or key (press one of them or neither key) to adjust the chair s height, and release the key until to the required position. Step 3: press or key (press one of them or neither key) to adjust the backrest s angle, and release the key until to the pre-set position. Step 4: press any key of A, B, C group, and press any key of such three memory chair positions. Step 5: press SET key, the indicator light turns off, and the set is completed. The required chair position has been memorized in the corresponding memory group keys. 2. ASSISTANT TRAY CONTROLLING PANEL 1, 2, 3, 4: Position of the patient chair (see chapter XI No. 1.1) 5: Constant temperature hot water (see chapter XI No. 1.5) 6: Water supply (see chapter XI No. 1.3) 7: Cuspidor water rushing (see chapter XI No. 1.4) 3. WATER TANK The water supply of the water tank only be used by the appliance on the tray. In case of selecting the water supply from the water tank, please follow the steps shown as below: Step 1: draw back the switch, cut off the tap water supply. Step 2: pull up the switch to ON, the water supply for appliances on the tool tray has changed to the water storage tank supply. In case of using the tap water as the water supply for appliances on the tool tray, please make sure the switch is pulled up. In case of air discharge when the switch is moving from ON to OFF, it s a normal. 4. FOOT CONTROLLER 1: position of the patient chair (see chapter XI No. 1.1) UP : ; DO : ; BD : ; BU :. 2: Water supply (see chapter XI No. 1.3) 3: Cuspidor water rushing (see chapter XI No. 1.4) 4: Chip blow 5: Handpiece pedal knob 4.1. CHIP BLOW Step on the key to dry the residual water in the handpiece pipe when the handpiece completes its work.

Please adjust by yourself as to the air amount for chip blowing. (see chapter XI No. 5) 4.2. HANDPIECE PEDAL W on the left pedal indicates the water supply control switch of the handpiece. A on the right pedal indicates the air supply control switch of the handpiece. The methods are shown as bellow: In case of stepping on the left pedal only, only the water supply. In case of stepping on the right pedal only, only the air supply. In case of stepping on both the right and the left pedals, the water supply and the gas supply work at the same time. Please don t use two or three handpieces at the same time. It is a auto-lock in the handpiece holder, In case of using the handpiece, please take out the handpiece. 5. VALVE OF HANDPIECE See Figure 1 for identifiers of the handpiece air adjustment, and see Figure 2 for identifiers of the handpiece water adjustment. Figure 1 Figure 2 5.1.,, in Figure 1 correspond to the handpiece water and air amount of,, in Figure 2. The adjustment method: connect three handpiece, then pull out one handpiece and step on the two pedals of the pedal controller at the same time, and then rotate the knob indication to adjust the water and air amount according to Figure 1 and Figure 2. 5.2. Figure 1 is to adjust the handpiece s air amount for chip blowing. Rotate the knob according to the identifiers indication to adjust the air. Please don t pull out two or three handpieces to make adjustment. 6. OPERATING LIGHT Identifiers of the operating light shall be made according to the right picture: : strong light : light off : soft light dental lamp identifier The power supply of the LED light lamp can be controlled by keys on the instrument tray. 7. X-RAY FILM VIEW As shown in the right picture, if move the switch to ON, the light turns on. If move to OFF, the light turns off. the power supply of the film viewer can be controlled by keys on the instrument tray. 8. 3-WAY SYRINGE AND SUCTIONS 8.1. 3-WAY SYRINGE Press the identifier Press the identifier, spray air only;, spray water only;

Press both the and, spray mist. 8.2. SUCTIONS Take out the strong and weak suctions from the assistant tray, they works automatically. Adjust the switch on the suctions head to adjust the amount, as shown in the right picture. In order to avoid the risk of biological compatibility, please use the accord with ISO 19033 salivary absorption material 9. SYSTEM INITIALIZATION It can t be initialized until the dental unit moves up to the specified location. STEPS FOLLOW: Step 1: Turn off the power switch of the dental unit, as the figure 1. Step 2: Turn on the switch No.1 (see figure 2) on the red base (see figure 3) witch on the left corner of the circuit board (see figure 4). Don't change the position of other switch. Figure 1 figure 2 figure 3 figure 4 Step 3: Turn on the dental unit, it will initialize after entering the system (a "tick" sound prompting sound). At this time Direction key only the master, slave, foot control can be used, other features are not available. Press the key (see figure 5) to move the dental unit to touch all 4 limit switch. Step 4: The LCD screen will as shown in figure 6. Put down the switch No.1 as the figure 7 (Note: it is not necessary to turn off the power switch when putting down the switch No.1). Initialization finished. figure 5 figure 6 figure 7 XII. MAINTENANCE AND REPAIR 1. In order to make clearly for the dental unit, please disinfect its surface by medical alcohol daily. In case of the damage of electrical parts,please do not spray any liquid into the equipment. Please wipe the Cleaning agent which remails on the surface of product with cleaning cloth. When cleaning opening position of products surface, please spraying cleaning agent to cleaning cloth before wiping. 2. In order to guarantee the using water cleanly, please clear the filter element of water filter by mild detergent at least every 6 months (the specification of filter core is less than 50 µm). If there is cracking or breakage in the water filter or filter cover, please change it at once.

3. In order to guarantee the water clearly in the water tank, please clear the water tank inside by mild detergent at least once a week. Disconnect the air from water tank firstly before take off the water tank. 4. In order to guarantee the dry air using, please discharge the seeperthe in the air pressure regulater which is in the junction box at lease once a week( the filter core is less than 5 µm). In case of there is air leakage in the air pressure regulater, please change it immediately. 5. please clear the suction filter by water every day after using the dental unit. 6. Inject lubricating oil regularly into the rotating parts to maintain the acting parts in good status, at least once a year. 7. Maintenance of dental light shall be carried out at normal temperature, using wet soft cloth to wipe the surface. 8. Please read the handpiece user s manual about its maintenance and disinfecting before using. 9. Only authorized dealer or customer service service personnel and other professional repair personnel can have the product maintenance. Qualification of the replacement of Some spare parts can be seen as follow. NO. SPARE PARTS PERSONNEL NO. SPARE PARTS PERSONNEL 1 Control system Maintainer 10 Air pressure valve Maintainer 2 Electric motor Maintainer 11 Barometer Maintainer 3 Lines Maintainer 12 Valve Maintainer 4 Main control board Maintainer 13 Water heater Maintainer 5 Foot controller Maintainer 14 Equipment casing Maintainer 6 Transformer Maintainer 15 Suction system Maintainer 7 Solenoid valve Maintainer 16 3-way syringe User 8 Dental lamp Maintainer 17 Spittoon cylinder User 9 Water filter Maintainer 18 Water tank User XIII. GUIDE TROUBLESHOOTING TROUBLE REASON ANALYSIS TROUBLESHOOTING The equipment doesn t work 1. The power supply switch is not connected. 2. The fuse of the power supply switch is burned. 3. The fuse of the equipment is broken. 4. The general switch of the equipment is not open. 1. Connect the power supply switch. 2. Change the fuse. 3. Change the fuse within the equipment. 4. Open the general switch. The dental lamp doesn t work 1. The bulb is burned. 2. The glower isn t well connected. 1. Change another bulb of the same type. 2. Revise with tools.

The sputum rushing & gargling water cannot be closed up No water comes from the sputum rushing & gargling water supply Temperature of the gargling water is too high The cuspidor rushing drainage doesn t work well No water comes out when using the handpiece or water with air when using the handpiece 3. The plug isn t well connected. 4. The fuse on the sub-terminal of the power supply transformer is burned. 5. The internal line within the moving parts is twisted off. 1. The valve element of the electromagnetic valve is blocked by foreign articles. 2. The therapy board is damaged. 1. The water pipe is contorted and staved. 2. The electromagnetic valve is burned. 3. The therapy board is damaged. 1. One temperature relay within the cover of the water heater fails to work. 2. Temperature on the temperature controller is too high. 1. The pipe is blocked by filth. 2. The plastic pipe is staved. 1. The single-joint diaphragm is fractured. 2. The handpiece control valve diaphragm is fractured. 2. Revise with tools. 3. Revise with tools and then plug in. 4. Change the fuse of the same type. 5. Change a new line. 1. Remove and clean the vale element 2. Change the therapy board. 1. Settle or change a new pipe. 2. Change a new electromagnetic valve. 3. Change a new therapy board. 1. Change a new water heater. 2. Readjust the temperature 1. Clean the filth. 2. Disassemble the pipe and dip it in hot water until it returns to the original state; or change a new pipe 1. Change the diaphragm of the same type. 2. Change the diaphragm of the same type. XIV. CIRCUIT SKETCH MAP XV. CIRCUIT DIAGRAM OF THE PATIENT CHAIR

XVI. WATER AND AIR PRINCIPLE

XVII. WATER AND AIR LINE SKETCH MAP

Suntem FOSHAN SUNTEM MEDICAL INSTRUMENT CO., LTD. Address: 1 Flat, No.7, C District, Sanshui Industry Park, 528137 Foshan City, Guangdong, China. Tel: +86-757-87393709 Fax: +86-757-87393729 Website: http://www.suntem.cn The company reserves the right of refining the design of the product without notice in advance. The manual has been showed every function on the dental unit, and the Company reserves the right of explanation. The Manual version: B. Effective date: 2013.