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1. or 3 The fan has failed 1 Descale the cooler copper pipe 2 Inspect whether the automatic spray system is working or 3 Inspect whether the fan is working The temperature controller displays a wrong or too high temperature 1 The platinum thermistor has a wrong phase sequence or wire breakage or 2 The platinum thermistor has intertwining wires 1 Correct the phase sequence and connect the circuit or 2 Sort or reweld wires of the platinum thermistor The circulating system needs continuous water replenishment 1 The cooler is leaking or 2 There is obvious leakage on joint s of the cooled equipment 1 If the cooler is leaking contact our after sale service department or 2 If the fault is not caused by either of the two causes in the Possible cause column inspect whether your pipeline is buried underground The fault may be a result of pipeline leakage Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 ei Counter Flow Closed Circuit Water Cooling Tower X Quick wear parts 1 Ball valve for water replenishment to the water tank 2 Mechanical seals of pumps 3 Fan motor 4 Exhaust valve and water tank s drain valve 5 Air switch 6 AC contactor 7 Thermal overload relay 8 PT100 platinum thermistor 9 Liquidometer Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 2142. is normal whether where is water leakage and abnormal sounds whether the fan is blowing upward if it is blowing in the opposite direction interchange positions of any two of three wires of the fan and whether there is an abnormal vibration sound and if there is any problem solve it immediately or if you cannot solve it by yourself contact us in time 2 2 The spray system is an automatic temperature control system When powering on the product pull the spray switch to the AUTO position The spray pump will then start and stop with rise and drop of the temperature Parameters of the automatic temperature controller are usually set before delivery so user does not need to change them freely otherwise control over the automatic temperature controller tends to fail If the temperature parameter needs to be changed the technician of user must read the User s Manual carefully before use or operate under guidance of our professional technician 2 3 Stop Usually to stop the product just press the Stop Pump button and the Stop Fan button The product will then stop If the equipment to be cooled down is a diathermic furnace or a smelting furnace do not stop the cooling system immediately after the diathermic furnace or the smelting furnace is stopped but after the hearth has completely cooled down Thus a time relay is provided for the cooling system When powering off the product set the time relay to the corresponding time according to the n
3. 112 F Counter Flow Closed Circuit Water Cooling Tower Wuxi Ark Fluid Science Technology Co Ltd Service hotline 86 510 81152828 Fax 86 510 81152626 Technical support 86 510 81150707 Address No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu Postal code 214112 Website www wxark net Email 199612 wxark cn 199601 wxark cn Note Wuxi Ark Fluid reserves the unique right for update in case of change please refer to the nameplate Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112
4. F Counter Flow Closed Circuit Water Cooling Tower Counter Flow Closed Circuit Water Cooling Tower Operation Manual WUXI ARK FLUID SCIENCE TECHNOLOGY CO LTD Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 F Counter Flow Closed Circuit Water Cooling Tower I Working principle The closed cooling tower cools liquids by means of heat absorption during water evaporation The working fluid softened water or another fluid circulates in the radiator coil Stored at bottom of the product the spray water cooling water is evenly sprayed on surface of the cooler coil through a spray distribution system and a spray nozzle and forms water film Some of the spray water is evaporated and the corresponding heat is absorbed by a fan thus lowering temperature of the working fluid in the cooler coil The water in hot air and the water that is not evaporated flow through the PVC heat exchange layer The water in the PVC heat exchange layer is cooled by the air flowing through the PVC heat exchange layer drops onto the bottom water pan and is pumped by a pump to the water distribution system for circulating cooling ll Range of application The product applies to circulating cooling of the heat producing equipment needing to be cooled down in fields such as power electronic devices power frequency furnace induction coils medium frequency furnace induction coils medium frequency power supplies IGBT power supp
5. change efficiency Heat can be discharged into air through one heat exchange only it is twice for an internal and external circulating system 2 Small land occupation 3 Less pipes and easy installation 4 Extremely small medium such as softened water consumption It needs no softened water generator but softened water added in a single time After the water level drops just replenish some softened water 5 High comparable cost efficiency It needs one time investment only is free worries in use and has time and manpower saving easy operation and low maintenance cost water consumption and electricity consumption ensuring long steady productivity Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 F Counter Flow Closed Circuit Water Cooling Tower Fig 1 Outside View of Main Unit of a counter flow Closed Cooling Tower 1 Fan 2 Water outlet of cooler 3 Water inlet of cooler 4 Drain valve of cooler 5 Spray pipe 6 Automatic water replenishing port 7 Blow down valve 8 Spray water tank 9 Air inlet grille V Transportation 1 It is suggested to lift the product during transportation During lifting use flexible slings When the slings are in contact with the metal plates on sides of the water tank try to avoid a large pressure on the water tank to avoid paint peeling of the metal plates If necessary support the product by poles before lifting 2 No matter the product is transp
6. eed put the Time Relay switch in the ON position and stop the fan Upon the set time the pump will stop automatically When being powered on again the pump will resume Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 ei Counter Flow Closed Circuit Water Cooling Tower running automatically after the time relay switch is put on the OFF position thus protecting the equipment furnace and saving energy Warning Do not run the pump without water 2 4 Automatic temperature controller The product has an automatic temperature controller After the water outlet temperature reaches the set maximum temperature the automatic temperature controller will start the spray pump automatically after the water outlet temperature drops to the set minimum temperature the automatic temperature controller will stop the spray device and limit the water outlet temperature in the set range 2 5 Reset after overheat protection The electric control system is provided with a thermal overload relay for the fan motor and the pump water respectively Upon a protection motion the red RESET button on the thermal overload relay at lower end of the corresponding AC contactor should be pressed till the end to realize reset after overheat other the corresponding AC contactor pull in after the Start Pump button or the Start Fan button is pressed 2 6 Water replenishment of the water tank Observe liquid level display tube on the
7. eparations before power on 1 1 Read the Instructions for Safe Use carefully and inspect whether the pipes are connected as required 1 2 Inspect whether there are abnormal phenomena close to the product 1 3 Inspect whether the power supply is properly connected whether the phase voltage meets the voltage requirements for closed cooling towers 1 4 Inspect whether all the wanted valves in the pipeline have been opened to corresponding Add No 58 Xinfeng Road Xintai Industrial Zone New Bistrict Wuxi City Jiangsu 214112 g Counter Flow Closed Circuit Water Cooling Tower reasonable positions and whether the standby pump is closed 1 5 Inspect whether the pump and the fan are rotating clockwise 1 6 After the product begins to run normally inspect whether the pump motor or the fan motor has overflow by an ammeter and if it does stop the product immediately and find and eliminate the reason before restarting the product Do not start the product forcedly in this case because the pump motor or the fan motor will be burned because of overflow 2 Operating steps of product control 2 1 Make sure all the pipes and all the control wires have been properly connected press the Start Main Pump button and the Start Fan button if the corresponding lights are lit it suggests that the main pump and the fan are both running and observe whether the pump is running clockwise whether the water flows in the arrow direction whether the water pressure
8. ezes have acceptable impacts and can be used securely If no proper antifreeze can be bought when needed it can be temporally substituted by industrial alcohol however alcohol is highly volatile and has possibly volatilized completely some time later and cannot realize an anti freezing effect User should adjust correspondingly according to the actual condition D We do not provide antifreeze The antifreeze proportion should be determined according to Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 g Counter Flow Closed Circuit Water Cooling Tower relevant requirement of the manufacturer VIII Maintenance 1 Keep surface of the radiator coil cooler of the product clean make sure a good ventilation condition close to the product clean the spray filter at regular intervals and to avoid impacts on the air volume and the cooling effect remove such impurities on the heat exchanger as dust and oil stains at regular intervals 2 If the product has been out of service for some time the pump impellers may be solidified by the water dirt deposit When restarting the product in this case loosen the pump motor first to avoid fuse burn because the pump impellers fail to rotate 3 After the product has been used in a dusty place for some time the outer walls of its stainless steel will possibly scale thus weakening cooling capacity of the product IX Common faults Fault P
9. installation materials Add No 58 Xinfeng Road Xintai Industrial Zone New Bistrict Wuxi City Jiangsu 214112 g Counter Flow Closed Circuit Water Cooling Tower The product has been strictly tested and inspected before delivery so user only needs to place it according to the site conditions or the product plan The professional technician of user should carefully read the Schematic Diagram of Water Cooling provided with the product determine lengths of the hoses quantities and materials of the gate valves the elbows the loose joints the straight fittings and tee fittings and the corresponding hoses and hose clamps and connect the cooling water pipeline system To avoid an impact on water quality the pipes and the corresponding accessories should be made of galvanized PPR or stainless steel 3 2 If any we may send a professional debugging person to guide the installation 3 3 If user installs the product by itself its professional technician should refer to the Schematic Diagram of Water Cooling during pipe installation Fig 2 3 4 5 CT Bottom box CT Upper Box CT Foundation Figure 2 Figure 3 Lifting CT bottom box Joint the bottom and upper box of CT Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 F F Counter Flow Closed Circuit Water Cooling Tower Transmission Figure 4 Figure 5 Install the transmission Cooling Tower Entirety VII Use and precautions 1 Pr
10. lies resistor welders laser devices high frequency devices thermal treatment quenching mediums molds generating units big hydraulic stations food chemical air compressors central air conditioning systems single crystal furnaces continuous casting molds glass furnaces and domestic and foreign casting and auto parts processing lll Structure and properties Both our combined flow closed cooling tower and counter flow closed cooling tower use copper pipes stainless steel pipes for heat conducting components and discharge the heat produced into air by means of the heat exchange between air and water It is a kind of new equipment that is actually a multi layer calandria heat exchanger forming a high heat flux density and evaporating the heat produced in heat conducting components 1 Structure A complete cooling tower mainly includes a main unit auxiliaries and an electric control system as below 1 The main unit is mainly made up of a cooler a plate a catch basin a spray system a spray pump and a spray pipe an exhaust system a fan a filler and a water collector Fig 2 counter flow type Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 g nf Counter Flow Closed Circuit Water Cooling Tower 2 Properties The product needs no water pool and its medium circulates in a closed way in the heat exchanger ensuring clean water It has the following advantages 1 High heat ex
11. orted in any way handle it gently and do not excessively swing or collide it otherwise it may be damaged relevant persons may be endangered etc VI Installation 1 Choosing of storage site and installation site For a longer life and reasonable use of the main unit a foundation in line with the Foundation Drawing should be prepared for the main unit The product should be installed under a rain shelter or a well ventilated room The space in the air exhaust direction should not be lower than 2 meters in height so as to make the hot air discharged by the main unit through the cooling fan fully exhausted into the exterior the space in the air inlet direction of the lateral heat exchanger of the main unit should be 1 5 to 2 meters in height so as to ensure normal service conditions for the main unit The product should be horizontally placed on the foundation and enough space should be reserved around it for easy operation inspections and maintenance 2 If the machine room has a poor ventilation condition use an air duct to lead the hot air generated by the product to an outdoor place 3 Pipe installation Elevation difference between the main unit bottom and the auxiliary pumps and a water tank bottom should not be larger than 0 2 meter If this requirement cannot be met because of geographical conditions contact us to avoid a serious consequence The pipes should not be installed overhead but on or below the ground 3 1 Determination of
12. ossible cause Elimination method The main pump or the spray pump cannot be started 1 The voltage is low or the power supply has an open phase problem 2 The pump and the impellers are seized or 3 The product is not reset after overload protection 1 Eliminate the circuit fault and transit power according to requirement of the product 2 Remove the motor hood and manually turn the motor impellers or 3 Press the overload protection reset button The main pump or the spray pump discharges no water or has an insufficient pressure 1 The pump rotates anticlockwise 2 The impellers are blocked or 3 Valves of the standby pump are not closed 1 Correct rotating direction of the pump motor 2 Clean and inspect the pump impellers or 3 Close all the valves at inlet and outlet of the standby pump After long time use there is 1 The spray pump is 1 Clean impellers of the Add No 58 Xinfeng Road Xintai Industrial Zone New District Wuxi City Jiangsu 214112 ad Counter Flow Closed Circuit Water Cooling Tower no enough spray water blocked 2 The spray pipe scales seriously or 3 The filter is blocked spray pump 2 Clean and inspect and spray pipe nozzle or 3 Clean or replace the filter After long time use the circulating water temperature is too high 1 The cooler copper pipe scales 2 The spray system is not working
13. water tank If the water level is lower than two thirds of the whole volume replenish softened water in time 3 Anti freezing Radiator of the product is made up of stainless steel pipes If the ambient temperature is below 0 C an anti freezing action must be taken because the water left in the stainless steel pipes after the product is stopped will ice up and burst When the product is being installed install a stop valve at its main water inlet and main water outlet respectively and at the main water inlet connect the compressed air pipe with the air outlet The following anti freezing actions may be taken 3 1 Install the product in a place with an indoor protective temperature above 0 C 3 2 If the product is installed outdoors or in a place above 0 C add some antifreeze into the stainless steel water tank and the spray water tank according to the volumes specified on User s Manual of the antifreeze 3 3 Anti freezing in winter Add No 58 Xinfeng Road Xintai Industrial Zone New Bistrict Wuxi City Jiangsu 214112 ei Counter Flow Closed Circuit Water Cooling Tower Blowing by air If the product will not be used in winter close the valves at its inlet and outlet open the exhaust valve feed compressed air into the cooler directly and upon a pressure of 4 kilograms to 5 kilograms in the cooler close the air inlet valve and open the drain valve to drain water and air out of the cooler and after the air pressure returns to
14. zero close the drain valve After three successive times of blowing with this method water in the cooler will be blown out thoroughly and the copper pipes in the cooler will not be frozen off during icing The following content is for reference about anti freezing A Significance of anti freezing If the product is installed indoors or outdoors in winter and the ambient temperature possibly drops below 0 C an effective anti freezing action must be taken This is a simple and effective equipment protection method It reminds user to take an anti freezing action before winter B Choosing and usage of antifreeze There are numerous antifreezes with diversified quality on the market User should choose a famous brand Antifreezes mainly include glycol and their quality mainly depends on their glycol contents the antifreezes with a high glycol content have high quality User may purchase an antifreeze from an chemical manufacturer The antifreeze has simple usage Its consumption mainly depends on the low temperature needing an anti freezing action Refer to the directions for use on its outer package for its specific proportion C Antifreeze s impact on the product and substitute According to relevant theory and our practice antifreezes have no corrosion impact on the product however they increase the conductivity a little A totally closed pure water circulation system is used and pure water has extremely low conductivity so antifre
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