Oxiperm C Service Manual
Contents
1. 22 5 2 Oxiperm with internal bypass pump occccccocccnccnnoccncccnnnnnnnnnnnnnnnnnnnnnnnnnanznnos 22 5 3 Oxiperm with external bypass pump cccceccseseeeeeeeeseeeeseseeeeseneeeess 22 5 4 Oxiperm for batch operation ccccsesceccceseeeeeceeeeeeeseseeeceeeeeeeseeeeeseaas 23 Do COR RS ee 23 5 6 Option enclosure exhausting ooccccccoccnnccconncncononcnnncnnncnnnnnnnnnnnnnnannnnnnnaneos 23 Tests every 5 years creido nnmnnn 24 Start up after maintenance ooonncccnnccccnnccconancconnncconnnncnnnnnrnnnnnnrnnnnnenanane 25 7 1 Systems with M208 dosing pumps and a calibration system 25 7 2 Systems with M221 dosing PUMPS ssncoccoionioncionenocniscccocanicnccicaere carece 26 Atos uae Oxiperm 164D 5 2000 g Service en 1 General 1 1 Spare parts set 15 710134 V3 0 NOTE In accordance with the regulations for the prevention O of accidents GUV 8 15 and VGB 65 19 2 the safety of the chlorine dioxide systems must be checked by an expert on a regular basis at least once a year and before each start up These checks can be carried out by the service centre within the framework of a 6 month or annual maintenance check WARNING Before any maintenance work is carried out i e if parts and gaskets are replaced the whole installation must be flushed with water When maintenance work is carried out any remains of chemicals must be removed When working with acids or lyes ens2. Switch bypass off LE N ALLDOS 1 4 1 3 Dosing tubes and pipe lines Oxiperm 164D 5 2000 g Service en Here the dosing tubes between the dosing pump and reactor inlet are checked for wear brittleness or discolouration which can be caused by possible leaking reactor valves These are replaced if necessary Wear Brittleness Replace dosing tubes Discolouration O Replace dosing tubes Replace reactor valves NOTE If the hose connections should show signs of discolouration caused by possible leaking reactor valves then they must be replaced E Checking the return pipes of the dosing pumps O Check tightness of the bypass line activate bypass in service mode if necessary Spare hoses includes 2x connection screws DN4 or DN8 1 5m hose DN4 or DN8 Order No 553 1555 Dosing tube DN4 Colour red for HCl Order No 553 1556 Dosing tube DN4 Colour blue for NaCIO2 Order No 553 1557 Dosing tube DN8 Colour transparent for HCI or NaCIO2 4 1 4 Relay connection for control system 14 Here all relay connections are checked To check on the display switch to service mode test mode relay The following relays can be checked Dosing pump NaCIO2 Dosing pump HCl Bypass line solenoid valve circulating pump Suction of housing solenoid valve Electrically isolated output Auto Manual Electrically isolated output error messages Elect
3. anticlockwise direction Assembly Insert the intermediate ring in such a way that the relief hole faces downwards Screw in diaphragm Switch on pump briefly until the diaphragm reaches the back dead point Carefully fit the dosing head and gradually tighten the screws in a diagonal sequence so that the dosing head is not damaged Deaerate the pump Dosing pump M208 Here the dosing pumps for HCI and NaClO2 are serviced Those parts are replaced which are on the spare parts set Deactivate the installation or dosing pumps Spare parts for double head system 164 030 120D Order No 553 1486 Spare parts for double head system 164 220DOrder No 553 1488 Pos 3 4 17 20 37 73 15 710134 V3 0 Part No Designation 10 8090 331 SD valve DN4 10 8092 430 Deaeration cartridge 10 8077 302 Dosing diaphragm 52 183 O ring Viton 50 272 Oval head screw 52 337 O ring Viton Atos Oxiperm 164D 5 2000 g Service en LAN ZE ALLDIOS uae Oxiperm 164D 5 2000 g Service en Dosing pumps M221 15 710134 V3 0 Dosin umps for 164 350D and 164 700D Spare parts for dosing head M221 Order No 553 520 3 Pos Part No Designation Installation 1 10 5503 300 Dosing diaphragm PTFE NBR 164 350D and 164 700D 2 54 154 400 Profiled gasket NBR 164 350D and 164 700D 3 54 125 Grooved ring Perbunan 164 350D and 164 700D 8 10 7400 321 SD valve DN8 164
4. see table System on Max system Consumption of Dilution water requirement for bypass system performance pressure components At 6 bar Solenoid valve Bypass pump In batch mode back pressure 50 Hz 60HZz HCI NaCIO2 standard Internal external Min 4 Max 5 g h 1 h bar bar 1 h 1 h 1 h 1 h 1h 1 h 164 030D 30 421 10 10 0 7 0 7 420 420 6 14 164 120D 120 426 9 6 2 9 2 9 420 420 25 55 164 220D 220 430 7 7 5 2 5 2 420 420 45 100 164 350D 350 437 9 9 8 3 8 3 420 420 70 160 164 700D 700 933 9 9 16 5 16 5 900 900 140 320 164 1000D 1000 948 9 9 24 24 900 900 200 450 164 1500D 1500 970 9 9 35 35 900 900 300 680 164 2000D 2000 996 9 6 48 48 900 900 400 900 10 ALLDIO S V3 0 Oxiperm 164D 5 2000 g Service en 3 6 Relay connection for control system Here all relay connections are checked To check on the display switch to service mode test mode relay The following relays can be checked Dosing pump NaCIO2 Dosing pump HCl Bypass line solenoid valve circulating pump Suction of housing solenoid valve Electrically isolated output Auto Manual Electrically isolated output error messages Electrically isolated output pre empty signals Electrically isolated output dry run batch container Suction of batch container solenoid valve 15 710134 V3 0 ALLD O S 11 Oxiperm 164D 5 2000 g Service en 4 Maintenance and tests every 12 mont
5. suction lines to the chemical containers The settings listed in Section 3 are now checked System type and operating mode In Service mode Deaeration deaerate both dosing pumps Check operation of dosing controller adjust if necessary Check volume of bypass water Calibrate dosing pumps e g manual mode installation capacity 100 and set to the required dosing line Activate installation and check the tightness of all screws 15 710134 V3 0 ALLDIO S 25 7 2 Systems with M221 dosing pumps 26 Oxiperm 164D 5 2000 g Service en For dosing pumps M221 there is no pre lifting chamber which has to be emptied first Deactivate installation via display Connect suction lines to the chemical containers The settings listed in Section 3 are now checked System type and operating mode In Service mode Deaeration deaerate both dosing pumps Check operation of dosing controller adjust if necessary Check volume of bypass water Calibrate dosing pumps e g manual mode installation capacity 100 and set to the required dosing line Activate installation and check the tightness of all screws ALLDIOS uae Oxiperm 164D 5 2000 g Service en 15 710134 V3 0 ALLDOS 27 28 ALLDIOS Oxiperm 164D 5 2000 g Service en V3 0
6. 350D and 164 700D Dosing pumps for 164 1000D Spare parts for dosing head M221 Order No 553 521 3 Pos Part No Designation Installation 1 10 5940 300 Dosing diaphragm PTFE NBR 164 1000D 2 54 154 400 Profiled gasket NBR 164 1000D 3 54 125 Grooved ring Perbunan 164 1000D 8 10 7400 321 SD valve DN8 164 1000D Dosing pumps for 164 1500D Spare parts for dosing head M221 Order No 553 522 3 Pos Part No Designation Installation 1 10 6001 300 Dosing diaphragm PTFE NBR 164 1500D 2 54 154 400 Profiled gasket NBR 164 1500D 3 54 125 Grooved ring Perbunan 164 1500D 8 10 7400 321 SD valve DN8 164 1500D AG i VAS 1 Ej EZ ES A Atos Oxiperm 164D 5 2000 g Service en Dosing pumps for 164 2000D Spare parts for dosing head M221 Order No 553 523 3 Pos Part No Designation Installation 1 10 5898 300 Dosing diaphragm PTFE NBR 164 2000D 2 54 154 400 Profiled gasket NBR 164 2000D 3 54 125 Grooved ring Perbunan 164 2000D 8 10 7400 321 SD valve DN8 164 2000D 4 2 4 Suction injection optional for enclosure exhausting In the case of water which has a high deposit content deposits can change the nozzle ratio of the injector in such a way that it causes a drop in performance during suction In this case the nozzle must be cleaned ATTENTION Do not use sharp objects to clean the nozzles Diluted hydrochloride acid has proven to be the most suitable cleaning agent Observe the regulations when us
7. 64 005D to 164 010D 164 005D to 164 010D 164 030D to 164 220D 164 030D to 164 220D 164 350D to 164 2000D 164 350D to 164 2000D The reactor valves are not identical to the valves of the dosing pumps Do not interchange valves 10 7403 351 553 642 12 6020 20 Tt 10 7402 351 ALLDIDS 10 7402 351 553 643 12 6020 21 10 7402 351 10 7402 351 10 7402 351 Oxiperm 164D 5 2000 g Service en 4 2 2 Ball check in the bypass line Here the ball check is replaced in the bypass line O Deactivate installation O Close ball valves before and after installation Loosen screws pos 1 of the non return valve Replace non return valve O NOTE Observe mounting position flow direction Tighten screws pos 1 RART in 16 ALLDIO S V3 0 Oxiperm 164D 5 2000 g Service en 4 2 3 Dosing pump for HCI and NaCI02 Removing the diaphragm Insert suction lines of the pumps into a water container and allow the installation to run until the dosing heads of the pumps have been fully flushed with water Loosen deaeration screws by 1 turn untilthe deaeration lines are flushed as well Then switch the installation off Loosen the four dosing head screws E Remove the dosing head and unscrew the diaphragm in an
8. Oxiperm 164D 5 2000 g Service en 15 710134 V3 0 Y GRUNDFOS 24 ALLDOS Oxiperm C 164 Fully automatic chlorine dioxide processing plant 164 005D 010D 030D 120D 220D 350D 700D 1000D 1500D 2000D Service manual ALLDIOS Imprint Oxiperm 164D 5 2000 g Service en Oxiperm C 164 Fully automatic chlorine dioxide processing plant 164 005D 010D 030D 120D 220D 350D 700D 1000D 1500D 2000D Service manual Version 3 0 Issued by ALLDOS Eichler GmbH Reetzstrafe 85 76327 Pfinztal Sdllingen Postfach 1160 76317 Pfinztal Germany Tel 49 0 72 40 61 0 Fax 49 0 72 40 61 177 E Mail alldos de alldos com Internet http www alldos com 2006 by ALLDOS Eichler GmbH Subject to change without notice ALLDIOS uae Oxiperm 164D 5 2000 g Service en Installation data NOTE Please fill in this form following commissioning It will O help you and your ALLDOS servicing partner to adjust the unit during subsequent corrections Owner ALLDOS customer No Contract No Order No of unit Serial No of unit Put into service on Location of unit Used for Installation diagram 15 710134 V3 0 ALLDIO S 3 Contents Oxiperm 164D 5 2000 g Service en La 0 LA La LP EEE RE TR ER RE 2 aci 3 installati n diagram cs 3 1 _ ewe es ne nn 5 1 1 opare DAS Sol ae ane sted OOO eo 5 2 Preparing the installation for maintenance 6 2 1 Systems with M208 dos
9. Service en During these tests the following functions or components are checked and if necessary cleaned or replaced 3 1 Dosing tubes for HCl and NaCI02 Here the dosing tubes between the dosing pump and reactor inlet are checked for wear brittleness or discolouration which can be caused by possible leaking reactor valves These are replaced if necessary Wear Brittleness Replace dosing tubes Discolouration Replace dosing tubes Replace reactor valves NOTE If the hose connections should show signs of discolouration caused by possible leaking reactor valves then they must be replaced Spare hoses includes 2x connection screws DN4 or DN8 1 5m hose DN4 or DN8 Order No 553 1555 Dosing tube DN4 Colour red for HCI Order No 553 1556 Dosing tube DN4 Colour blue for NaCIO2 Order No 553 1557 Dosing tube DN8 Colour transparent for HCI or NaCIO2 3 2 Checking the solenoid valves Here the function of existing solenoid valves is checked depending on option Solenoid valves of the bypass line o Solenoid valves for suction of housing Solenoid valves for suction of batch container NOTE If a solenoid valve is faulty it must be replaced Spare valves 45 10245 1 2 Solenoid valve 230V 50Hz 45 10249 1 2 Solenoid valve 115V 60Hz ALLDIOS uae Oxiperm 164D 5 2000 g Service en 3 3 Checking the foot valves and float switch of the suction lines Here the foot valves are checked for contaminati
10. est we recommend replacing the following components Replace the dosing pump for HCI Replace the dosing pump for NaClO2 24 ALLDIO S V3 0 Oxiperm 164D 5 2000 g Service en 7 Start up after maintenance After each maintenance procedure the following points or settings should be checked O System type and operating mode o Dosing flow of the pumps for HCI and NaClO2 dosing flow see documentation Settings the dosing pumps must be calibrated if necessary deaerate the dosing head Operation of dosing controller adjust if necessary Volume of bypass water Screws Tightness of installation 7 1 Systems with M208 dosing pumps and a calibration system For dosing pumps M208 with a calibration system ensure that the water is emptied out of the pre lifting chamber E Deactivate installation via display Remove suction lines from the water containers Push float switches of the suction lines upwards in order to not produce any error messages Error messages pre empty signals and empty signals for suction lines which are caused by the float switches Switch to manual mode on the display Set installation capacity to 100 Activate installation Set stroke setting for dosing pumps to 100 Remove cover from pre lifting chambers The water is now dosed from the calibration system The installation continues to run until no more liquid is left in the pre lifting chamber O Deactivate installation 8 Connect
11. eter Part No Designation Installation 12 6010 1 Flow meter FHKU 100 164 005D to 2000D 53 625 70 Flow limiter 7 l min 164 005D to 350D 53 625 150 Flow limiter 15 l min 164 700D to 2000D ALLDIOS uae Oxiperm 164D 5 2000 g Service en 5 4 Oxiperm for batch operation Bypass line with solenoid valve ball valve Replace solenoid valve o Replace the impeller counter flow meter O Replace pressure retention valve Part No Designation Installation 12 6010 1 Flow meter FHKU 100 164 1000D to 164 2000D 12 6010 2 Flow meter FHKU 40 164 350D 12 6010 3 Flow meter FHKU 56 164 700D 12 6010 4 Flow meter FHKU 25 164 220D 12 6010 5 Flow meter FHKU 20 164 120D 12 6010 6 Flow meter FHKU 15 164 030D 12 6010 7 Flow meter FHKU 10 164 005D 010D 53 919 10 PVC solenoid valve 230V 50 60Hz all 53 919 11 PVC solenoid valve 110V 50 60Hz all 525 0567 Pressure retention valve DN8 164 030D to 164 220D 525 1113 Pressure retention valve DN20 164 350D to 164 2000D 5 5 Suction lines Here the suction lines are checked O Replace foot valve ball Check suction lines for brittleness replace if necessary 5 6 Option enclosure exhausting Here the operation of the solenoid valve is checked O NOTE In the event of a faulty solenoid valve it must be replaced Spare valves 45 10245 1 2 Solenoid valve 230V 50Hz 45 10249 1 2 Solenoid valve 115V 60Hz 15 710134 V3 0 ALLDIO S 23 Oxiperm 164D 5 2000 g Service en 6 Tests every 5 years NOTE For this t
12. hs 4 1 Tests 4 1 1 Float switches and foot valves 12 During these maintenance tests the following components are checked and if necessary cleaned or replaced Float switches and foot valves Solenoid valve or circulating pump of the bypass line Hose connections and pipe lines Relay connection for control system ASS CD N EaR i RIRA NT K Check the connection to the suction line Check mesh bottom plate pos 1 seat pos 2 and balls pos 3 for contamination replace if necessary Check the operation of the float switch ALLDIOS uae Oxiperm 164D 5 2000 g Service en 4 1 2 Solenoid valve or circulating pump 15 710134 V3 0 Here the operation and tightness of the solenoid valve or circulating pump and flow limiter are checked NOTE Switch to service mode start up mode on the display Bypass water Switch bypass on in order to check the operation of the solenoid valve or circulating pump The specified amount of water on the display must be within the set tolerances Check the tightness of the solenoid valve or circulating pump replace if necessary Check connection screws and O rings pos 2 of the circulating pump replace O rings if necessary Check tightness of flow limiter replace flat gaskets pos 1 if necessary Observe mounting position flow direction
13. ignals for suction lines which are caused by the float switches Switch to manual mode on the display Set installation capacity to 100 Activate installation Set stroke setting for dosing pumps to 100 Remove cover from pre lifting chambers The chemicals can now be dosed from the calibration system The installation continues to run until no more liquid is left in the pre lifting chamber O Deactivate installation Place suction lines in a container that has been filled with demineralised water or fill the empty container with demineralised water NOTE Push float switches of the suction lines upwards in order to not produce any error messages and if necessary acknowledge any error messages Switch to service mode on the display Switch to start up mode Activate start up mode Set stroke setting for dosing pumps to 100 The dosing pumps and reactor can now be flushed with demineralised water NOTE If the pre lifting chamber is emptied so that the dosing head has air in it and thereby produces a dosing controller error message then the start up operation must be stopped in order to deaerate the suction lines and dosing heads Once this has been done the start up operation can be resumed Once the start up operation has finished the bypass line then has to be flushed with water O Switch to deaeration mode on the display O Switch bypass on and flush for approximately 3 5 minutes Switch bypass off ALLDOS
14. ing hydrochloric acid For each service the operation and tightness of the suction injector must be checked replace the following parts if necessary Pos 12 15 11 8 7 6 4 21 21 4 6 7 8 o s aks ANNAN NNN SN IIS SSS a 12 13 15 16 17 15 O NOTE The following parts are not included on the spare parts set 20 ALLDIO S V3 0 Oxiperm 164D 5 2000 g Service en Pos 11 12 13 15 17 21 4 2 5 Dosing controller Designation Part No Installation O ring 52 125 PTFE piston 12 171 4 Seat 12 120 4 O ring 52 139 Diaphragm 12 312 4 O ring 52 141 Diffuser B complete 12 591 42 164 030D 164 120D 164 220D Diffuser C complete 12 591 43 164 350D 164 700D 164 1000D 164 1500D 164 2000D O ring 2x 52 123 2 Nozzle B 12 584 42 164 030D 164 120D 164 220D Nozzle C 12 584 43 164 350D 164 700D 164 1000D 164 1500D 164 2000D O ring 52 164 When the dosing controller is serviced the float bodies are replaced and if necessary also the O rings of the connection 15 710134 V3 0 Deactivate the installation Loosen the screws on the dosing tubes Unscrew the dosing controller pos 1 from the dosing pump Unscrew the upper part pos 12 Replace the float body pos 10 Observe mounting position Check O rings replace if necessa
15. ing pumps and a calibration system 6 2 2 Systems with M221 dosing PUMPS occccccconnnncccnncnnncnnnncnnnonnnnnnnononnnnnnnnnnnnnnos 7 3 Tests CVT o MONS 0 8 3 1 Dosing tubes for HCI and NaCIO2 cececceeeceaeeseeeeeeeeeaanseeeeeensaaaneeeees 8 3 2 Checking the solenoid valves cccooocccccconncnccocononoconannnnonnnnnncnonanonnnnnnnons 8 3 3 Checking the foot valves and float switch of the suction lines 9 3 4 Check information SIGNS scr dsmendereubemnadiocecaveainincserouneieetiiendascades 10 3 5 Checking the dosing flow of the pumps for HCI and NaClO2 10 3 6 Relay connection for control system ccccseecececeeseeeccesseeeceneeeeeseaeees 11 4 Maintenance and tests every 12 months ss 12 4 1 A o A a 12 4 1 1 Float switches and foot valves c ooooccccccoonccnccconnnnnononcnnnnnnanoncnonaneos 12 4 1 2 Solenoid valve or circulating PUMP cooocccncconcnnncconnnoncnonanonenonanos 13 4 1 3 Dosing tubes and pipe lines cccooocccooonnncconnnccnonnnonanononanonos 14 4 1 4 Relay connection for Control system 14 4 2 Mn o 15 421 o o en Eo eee Les 15 4 2 2 Ball check in the bypass line VU 16 4 2 3 Dosing pump for HCI and NaClO2 ccccceeececesseeeeeeesseeeeesaeeeees 17 4 2 4 Suction injection optional for enclosure exhausting 20 Aa DOSING COMORES 21 5 AS A sn tan esse 22 5 1 Oxiperm Standard version
16. on along with the operation of the float switches Sl SS X CD N EROS 2 111 A Check the connection to the suction line Check mesh bottom plate pos 1 seat pos 2 and balls pos 3 for contamination replace if necessary 0 Check the operation of the float switch Spare parts for suction line Pos Part No Designation 1 10 4559 401 Union nut grey PVC 2 10 7299 400 Valve seat grey PVC 3 10 6564 Ball ceramics 4 10 7372 436 Float switch PP 5 10 2254 400 Weighting stone KER 1101 15 710134 V3 0 ALLDIO S Installation 164 005D to 164 2000D 164 005D to 164 2000D 164 005D to 164 2000D 164 005D to 164 2000D 164 005D to 164 2000D Oxiperm 164D 5 2000 g Service en 3 4 Check information signs Here the legibility of all installation signs or labels is checked O Warning label o HCI label on dosing pump a NaClO2 label on dosing pump O NOTE If the labels are illegible or damaged they must be Y replaced Label Part No Designation Installation 12 6029 300 Warning label all 12 6028 410 HCI label all 12 6028 400 NaClO2 label all 3 5 Checking the dosing flow of the pumps for HCI and NaCI02 Here the dosing pumps are calibrated in order to check the set dosing volume If these deviate from the specified settings the dosing pumps must be reset and redosed Settings
17. rically isolated output pre empty signals Electrically isolated output dry run batch container Suction of batch container solenoid valve ALLDIOS uae Oxiperm 164D 5 2000 g Service en 4 2 Maintenance 4 2 1 Reactor valves 0 10 7403 351 553 640 12 6020 10 553 641 12 6020 11 10 8093 331 10 8093 331 15 710134 V3 0 Reactor valves Ball check in the bypass line O Dosing pump for HCI and NaCIO2 Suction injector optional Dosing controller NOTE During these maintenance tests the reactor valves must be fully replaced Close ball valve on the injection unit or close ball valve following installation Open pipe line connections above the reactor and hose connections of the dosing pumps Replace reactor valves Tighten pipe line connections above the reactor and hose connections of the dosing pumps Spare parts for the reactor valves 3x Part No 553 640 1 553 641 1 553 640 553 641 553 642 553 643 NOTE 10 7402 351 10 8090 331 10 8090 331 Designation for system backpressure lower than 3 bar for system backpressure higher than 3 bar for system backpressure lower than 3 bar for system backpressure higher than 3 bar for system backpressure lower than 3 bar for system backpressure higher than 3 bar Installation 1
18. ry Fit upper part back on Fit dosing controller back onto the pump Tighten dosing tubes again Atos ef Oxiperm 164D 5 2000 g Service en 9 9 1 Tests every 24 months 0 Oxiperm Standard version NOTE For this test we recommend replacing the following components Bypass line with solenoid valve flow limiter Replace the solenoid valve flow limiter O Replace the impeller counter flow meter Part No Designation Installation 12 3532 405 Solenoid valve 230V 164 005D to with flow limiter 7 l min 164 350D 12 3532 406 Solenoid valve 115V 164 005D to with flow limiter 7 l min 164 350D 12 3532 403 Solenoid valve 230V 164 700D to with flow limiter 15l min 164 2000D 12 3532 404 Solenoid valve 115V 164 700D to with flow limiter 15l min 164 2000D 12 6010 1 Flow meter FHKU 100 all 5 2 Oxiperm with internal bypass pump Bypass line with internal circulating pump flow limiter O Replace the circulating pump flow limiter Replace the impeller counter flow meter Part No Designation Installation 12 6078 400 Bypass pump 230V cpl 164 005D to 2000D 53 650 005 Bypass pump 115V 164 005D to 2000D 12 6010 1 Flow meter FHKU 100 164 005D to 2000D 53 625 70 Flow limiter 7 l min 164 005D to 350D 53 625 150 Flow limiter 15 l min 164 700D to 2000D 5 3 Oxiperm with external bypass pump 22 Bypass line with external rotary pump flow limiter O Replace flow limiter Replace the impeller counter flow m
19. uae Oxiperm 164D 5 2000 g Service en 2 2 Systems with M221 dosing pumps 15 710134 V3 0 For dosing pumps M221 there is no pre lifting chamber which has to be emptied first dE O NOTE NOTE Deactivate installation via display Remove suction lines from the chemical containers and place separately in a container that has been filled with demineralised water Push float switches of the suction lines upwards in order to not produce any error messages Error messages pre empty signals and empty signals for suction lines which are caused by the float switches Push float switches of the suction lines upwards in order to not produce any error messages and if necessary acknowledge any error messages Switch to service mode on the display Switch to start up mode Activate start up mode Set stroke setting for dosing pumps to 100 If there is air in the suction line this will produce a dosing controller error message Stop the start up operation and deaerate the suction lines and dosing heads Once this has been done the start up operation can be resumed The dosing pumps and reactor can now be flushed with demineralised water Once the start up operation has finished the bypass line then has to be flushed with water O O Switch to deaeration mode on the display Switch bypass on and flush for approximately 3 5 minutes Switch bypass off ALLDOS i 3 Tests every 6 months Oxiperm 164D 5 2000 g
20. ure that the necessary protective clothing is worn Maintenance and repair work may only be carried out by authorised qualified personnel Each spare parts set includes the following parts Spare parts sets for the dosing pumps diaphragm valves O rings Flat gaskets for connection of solenoid valve or flow limiter O rings for Bypass line DN20 impeller counter circulating pump Float bodies and O rings for dosing controller Valve unit for the reactor 3 valves for each Ball check DN20 for the bypass line ALLDOS i Oxiperm 164D 5 2000 g Service en 2 Preparing the installation for maintenance For maintenance work which involves replacing components the dosing pumps for HCl and NaClO2 and the reactor must be flushed with demineralised water and the bypass line with process water in order to avoid direct contact with chemical residues For dosing pumps with a calibration system M208 ensure that the chemicals in the pre lifting chamber are dosed first 2 1 Systems with M208 dosing pumps and a calibration system For dosing pumps M208 with a calibration system ensure that the pre lifting chamber is emptied first O Deactivate the installation via the display Remove the suction lines from the chemical containers and place separately in an empty container O Push the float switches of the suction lines upwards in order to not produce any error messages Acknowledge any error messages pre empty signals and empty s
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