Tecomotive - tinyCWA – User Manual
Contents
1. Color Grey Red Grey Black Connection Battery 12V Signal wire from controller Ground wire from controller Ground GND the picture Water pump installation N In and outlet of the pump are shown in To get a decent coolant circulation the 7 NG pump should suck the water out of the bottom radiator port and then back into the engine Also it is recommended to mount the pump as low as possible Attention Please only mount the pump with appropriate rubber dampers because high vibration can damage the internal electronics Basic settings Program list Position Speed Rev min approx cw aan L min approx 10Hz PWM Duty The only thing you need to decide is what speed you want the pump to run 0 Stop 0 0 0 See the list beside 1 Min Rev 18 0 45 7 Turn the rotary switch to the associated character Done 2 Th 400 10 13 3 14 700 18 20 4 21 1000 26 27 Using the rotary switch 5 289 1325 34 339 6 35 1640 42 40 Right in the center of the controller s front panel you ll find the rotary 7 42 1950 50 47 switch By turning it to a specific character you are able to set up all the 8 91 2320 60 93 things the controller can do S oe eon o ae 8 A 65 2950 76 67 B 72 3250 84 73 The character that points to the bottom is the currently selected one C 79 3570 92 80 You will see a little white dot by looking closely D 86 3880 100 87 E 93 4190 108 93 F 100 4500 116 100 Also i2. switched 12V lt lt Yellow Not needed fe Not needed _ ____ Orange not needed 10Hz PWM 12V max 500mA Load lt lt CWASO 3 Pin Audi Version 3 2 Signal Positive 2 _ 1 12V 1 Battery Page 9 of 9
3. that means that the same color cables are meant to connect to each other A detailed connection diagram can be found on the last page Even though the CWA200 is electronically regulated to a max load of 15 amps you should always use the fuse fuse holder that comes with the kit Connector Controller 8 pin Info If you do not want any standby functionality you can connect the red wire pin 2 to the ignition switch too Attention The 10Hz PWM output can only handle a maximum of 0 5 amps Changing the screws Ground GND Battery Ignition key To mount the controller on a front panel you can change the four case screws M3 to the longer ones which come with the kit Please only change one at the time There are little spacers inside the case which can get out of place 6 Blue 10Hz PWM 500mA nearly open collector output Grey Red Signal wire water pump 8 Grey Black Signal ground wire water pump without the screw See the picture at the first page brie ba Naa Rina Aani l l ig ig working Of course the controller can be mounted anyway you like E g with double High re standby sided tape or zip ties Low High off Low Low off Page 2 of 9 Connector Water pump 4 pin Attention The main current flows through pin 1 and pin 4 CWA200 15 amps CWA400 30 amps Please only use wires which are able to handle the current PI N 1 2 3 Page 3 of 9
4. 51 7 521 584 11 51 7 545 201 PIN 6 10Hz nearly open collector output circuit This is the internal circuit of the controllers 10Hz open collector output for information Please use this PIN only if you know what you are doing 12V PIN 6 10Hz PWM uC 4k7 4k7 Safety notes Disclaimer The installation should only be done by experienced or special trained personnel with the necessary knowledge We cannot be held liable for any damages on your car engine or the product itself General notes Before you plug in the devices make sure all the cables are wired correctly The installation needs special automotive and electrical knowledge Improper connection and use can damage your car the engine or the product itself Installation Before you start with the installation disconnect the cars battery to prevent any unintentional short circuits Pay attention to any potential safety notes from your car manufacturer E g regarding airbags alarm systems ECU s or immobilizers Avoid smoking fire flying sparks or static electricity charges Be careful not to damage any parts e g battery wires hoses while drilling holes Page 6 of 9 Don t lay cables or connectors in areas which are exposed to spray water Don t mount the wires sensor in areas which are exposed to moving or rotating parts Operation Any modifications on your car could be against the law It is your responsibility to
5. get all the necessary information and permissions to drive the car legally If you drive your car without proper legality and permissions you could lose your insurance coverage and could be committing a criminal offence Current consumption over longer periods of time The devices are consuming a little bit of current even in standby mode If you don t use them over a longer period of time it is recommended to disconnect them entirely to not damage the cars battery Application The device described in this manual is only tested with the water pump CWA200 made by the Pierburg Pump Technology GmbH which is available at the replacement department of the BMW AG A functional guarantee can only be given by using this product GND lt lt Black battery 12V lt lt switched 12V lt lt be Yellow Not needed Not needed 10Hz PWM f eerie c12 max 500mA Load a eer a CWA200 ANO 12V Page 7 of 9 GND lt lt Fs Black battery 12V lt lt a switched 12V lt lt PC Yellow Not needed Je Not needed __ Orange not needed 10Hz PWM kasamaang Grey Red ros Grey Black 12V max 500mA Load lt lt CWASO 4 Pin BMW Version AGNO 1 Ground 2 Signal Ground 12V 3 Signal Positive A O N 4 Battery Page 8 of 9 GND lt lt as Black battery 12V lt lt
6. Tecomotive tin yCWA User Manual manual Version Overview a N O O Contents _ tinyCWA controller Ma ou Fuse holder Fuse s ian Connector 8 pin controller yen Connector 3 4 pin water pump D EA Set of screws controller mounting gor CE Introduction The Pierburg CWA200 was the first electronic water pump for line production introduced by BMW in 2004 They are now widely available in used cars and the aftermarket and got many advantages over conventional mechanical pumps Some of which are the freedom of installation and the independence of engine revolutions Also the pumps are very well built and with its brushless canned motor they are practical maintenance free The tinyCWA controller can control the pump in the appropriate manner Page 1 of 9 Operation When activated the controller sends the chosen speed signal to the pump where the internal pump electronics then set it to the right speed Features Simple to set up with only one rotary switch Choose your favorite pump speed in sixteen steps A seven LED display shows the current pump speed Compact and robust anodized aluminum case Additional 10Hz PWM 500mA nearly open collector output Installation Connection Installation drawing scale 1 1 We made the connection as easy and intuitive as possible So in general
7. t helps to use a little screwdriver for turning Rotary switch position s Position Speed Rev min approx cwaso L min approx 10Hz PWM Duty You can turn the switch to 16 different positions Every one of them stands 0 Stop 0 0 S 1 Min Rev 0 1 T for a different pump speed 2 7 o 15 2 13 3 14 3 5 4 20 Just choose the one that s best for your application from the following list 4 21 5 6 27 5 28 7 8 33 6 35 9 10 40 T 42 10 12 41 8 51 13 15 53 9 58 15 17 60 A 65 16 19 67 B 72 18 22 73 C 79 20 24 80 D 86 22 26 87 E 93 23 28 93 F 100 25 30 100 Page 4 of 9 Specifications Controller Name Dimensions Operating voltage Current consumption Temperature range Weight Tecomotive tinyCWA 51x51x13mm without connector 51x51x24mm with connector 8 to 16 Volts max 40mA about 10mA in Standby mode 40 C to 100 C 40 F to 212 F about 40 grams 1 4 ounces Specifications Water pump Name Dimensions Operating voltage Current consumption Speed Pump pressure Volume flow Temperature range Page 5 of 9 Pierburg CWA200 100x125x175mm 8 to 16 Volts max 15A 0 2mA in Standby mode 18 to 4500rpm 0 45 bar 116 l min 40 C to 140 C 40 F to 284 F Example part numbers Pierburg 7 00294 17 0 BMW 11 51 7 586 925 BMW old 11 51 7 563 183 11 51 7 546 994 11
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