Dürr Regeneration Unit - Frank`s Hospital Workshop
Contents
1. 9 Hose connections 9 1 Hose connection to XR24 XR 24 Il XR 24 NOVA or to XR 24 PRO with serial number up to T005999 The regeneration connection is i effected using the nozzles to the tank m 13 at 16E and 16F see figs 6 and 7 L 44 _ The connecting hose from the Regeneration Unit for developer black 13 and fixer red 14 must be slipped through the prepared holes on the rear of the machine and fed to the grey connecting sleeves 16E and 16F on the baths Uncsrew the locking nuts 18 on the connectors 16E and 16F Remove the black plugs 20 Slide the locking nuts 18 and the grey hose locking ring 19 onto the connecting hose 13 and 14 Slide the connecting hose for developer black 13 and fixer red 14 all the way onto the appropriate connector sleeve 16E and 16F of the bath and secure in place with the locking nut 18 16E E Developer bath F Fixer bath 16F 2 2 Hose connection to XR 24 PRO with serial number from T006000 The tank design has been optimised i and the regeneration connection is effected at the inlet pipe see fig 7a Use the assembly set 1700 284 00 inlet pipe for regeneration unit with enclosed assembly instructions 16E 16F 18 13 14 19 20 z 10 Electrical connections m 10 1 XR 24 XR 24 Il XR 24 NOVA 9 g i e Place the appliance plug into the so2. gt A processor in the electronics of the XR 24 PRO stores the complete developing time therefore setting option selection is not required Check regeneration impulse for film length e Switch on the X ray developer and select program Endo film transport time 2 45 min e Lay a film in the film intake such that the film intake flap is activated but so that the film is not transported After approx 7 1 2 min the regeneration pumps should switch on and developer and fixer should be pumped into the baths of the X ray developer e Check the appliance for leaks Check regeneration pump performance m The developer and fixer pumps should transport the same amount of liquid into the baths of the X ray developer e Fill two measuring beakers with the same amount of water approx 0 5 liter Place these in the Regeneration Unit and place the two hoses from the regeneration containers into the measuring beakers e The pumps can be activated via the Service Routine of the XR 24 PRO in order to check the amount of liquids transported 5 Please refer to the Installation and Operating Instructions of the X ray developer XR 24 PRO Order No 9000 600 74 30 Section 18 6 Service Routine 15 OF aoa 16 29 30 13 Setting Regeneration Pump Piston Stroke The amount of chemicals actually transported by the Regeneration Unit can be adjusted by altering the setting of
3. Ap ORR DENTAL _ Installation and Operating Instructions DURR Regeneration Unit for X ray developers XR 24 XR24 Il XR 24 Nova XR 24 Pro 9000 600 77 30 ONO T e Content Important Information TiN Notes inc casthia a E R Val CEeLAbSlING denna u aR 1 2 Electromagnetic Compatibility 1 3 General Notes 1 4 General Safety Information 1 5 Combining Appliances 1 6 Electrical Safety Notes 1 7 Warnings and Symbols 2 Product information 2 1 Correct Usage 2 2 Incorrect usage 3 Contents 0 0 uae 831k ACCESSOMES iiaa r mirna 3 2 Special ACCESSOT ES 0 0 eee 4 Technical Data 00 5 Functional Diagram 0 c cee 5 1 Regeneration Unit connected to XR 24 XR 24 Il XR 24 NOVA 5 2 Regeneration Unit connected to XR 24 PRO nese ania ae 6 Functional Description 000 000000 6 1 Regeneration Unit RU 24 connected to XR 24 XR 24 Il R24 NOVA ntaa eE 6 2 Regeneration Unit RU 24 connected to XR 24 PRO n Installation 7 Set up alternatives for Regeneration Unit 8 Preliminary measures 0 00 0000 8 1 Remove front cover 8 2 Remove rear COVES lsien 8 3 Remove side covers 9 Hose connections 0 008 10 Electrical connections 10 1 XR 24 XR 24 Il XR 24 NOVA AOS2XRi24 PRO riea ohne titans aed 11 Setting the Regeneration
4. 15 Cleaning the Regeneration Unit Every 3 months e Check whether the collection container of the X ray developer is empty if necessary empty into the main canisters It is important that these collection containers are empty otherwise overflowing may result when the chemicals are drained from the baths Drain the chemicals from the baths of the X ray developers and empty the Regene ration Unit containers and rinse throroughly with warm water Fill the appliance and the regeneration unit containers with warm water and close the top cover e Now refer to the operating instructions of the appropriate model of X ray developer for next steps See section 15 1 or 15 2 15 1 XR 24 XR 24 Il XR 24 NOVA Regeneration on operation activated e Switch the X ray developer on and wait until the pumps of the Regeneration Unit have begun operation Finally switch off the X ray developer e Repeat this operation at least 4 times so that the Regeneration Unit pumps and hoses are thoroughly rinsed through e Once the appliance is again in Stand By Phase lifting bath in upper position turn off at main switch Regeneration on operation deactivated e Switch the X ray developer on and select fast forward operation e Lay a film in the film intake such that the film intake flap is activated but so that the film is not transported e Wait approx 30 min until the Regeneration Unit has operated 4 times Remove the film
5. 1700 284 00 included For connection to an XR 24 XR 24 Il XR 24 NOVA Use the conversion set PCB 1700 212 00 This must be ordered separately See section 3 2 and installation as described in section 11 2 The assembly set 1700 284 00 is then no longer required 3 1 Accessories 1 Assembly set for XR 24 Pro only 1700 284 00 3 2 Special Accessories The following parts are not part of the standard contents Order separately if required 1 PCB conversion set only for XR 24 Il and XR 24 NOVA 1700 212 00 4 Technical Data Regeneration Unit RU 24 for X ray developers XR 24 Model 1700 820 00 230V Model 1700 830 00 110V Model 1700 820 00 Voltage V 230 240 230 Frequency Hz 50 60 Power consumption A 0 65 0 9 0 5 Output W 50 80 50 80 Model 1700 830 00 Voltage V 100 110 100 110 Frequency Hz 50 60 Power consumption A 0 8 1 0 0 6 0 75 Output W 40 80 40 80 Model 1700 820 00 1700 830 00 Measurements cm LxBxH 32 x 36 x 37 Weight empty kg 4 5 FUNCTIONAL DIAGRAM 5 1 Regeneration Unit connected to XR 24 XR 24 Il XR 24 NOVA ad A1 5 2 Regeneration Unit connected to XR 24 PRO 6 FUNCTIONAL DESCRIPTION 6 1 Regeneration Unit RU 24 connected t
6. Electronics AUT RA a Ak tere eh Totes Po oi aS Teles te 11 2XR 24 Il and XR 24 NOVA WAS MR 24 PRO yiii sad eee 4 12 Check Settings 00 ee 12 1 XR 24 XR 24 Il XR 24 NOVA 15 12 2KRi24 PROM ca fies Aa aa 15 13 Setting Regeneration Pump Piston Stroke 0 0 0 0 ccs 16 14 Commissioning 0 ee 16 Operation 15 Cleaning the Regeneration Unit 17 15 1 XR 24 XR 24 Il XR 24 NOVA 17 15 2 XR 24 PRO tangs nenu einoka 17 16 Cleaning the X ray Developer 17 17 Disposal of Chemicals 0 17 Troubleshooting 18 Troubleshooting Tips for XR 24 XR 24 Il XR 24 NOVA ee 18 19 Troubleshooting Tips XR 24 PRO eere eai 19 IMPORTANT INFORMATION 1 1 CE Labeling This product bears the CE Labeling in accordance with the guidelines of the Medical Products Committee 93 42 EWG and satisfies all criteria of the Appendix to said guidelines 1 2 Electromagnetic Compatibility e This product conforms to all requirements laid down for Electromagnetic Compatibility of Medical Appliances 1 3 General Notes e These Installation and Operating Instructions form an integral part of the unit They must be kept close to the unit and in readiness whenever required Precise observance of these instructions is a pre condition for use of the unit for the intended purpose and for its correct installation and operation These Installation a
7. every length of 1 3m of developed film material For the duration of time that the film intake is activated via light barrier H on a film being fed into the appliance a generator produces impulses which are counted the number of impulses being proportional to the length of the film The software in the service program of the XR 24 PRO allows the running time of the regeneration pumps to be set at any interval between O s and 60 seconds see section 11 3 The running time of the regeneration pump is factory set at 30 s In this time the pumps feed c 190 ml fresh chemicals into the developer and fixer baths of the X ray developer from the 5I regeneration canisters The switching off of the pumps after a regeneration phase automatically transmits an impulse to the counter which then resets at zero The current counter reading is stored whenever the X ray developer is swiotched off or in case of a power down A Drive motor impulse generator B Regeneration Unit H Film intake light barrier I PCB J Display INSTALLATION 7 Set up alternatives for Regeneration Unit e Set up of Regeneration Unit RU 24 next to the X ray developer Where sufficient space is available this set up is preferred e Set up of Regeneration Unit RU 24 ina cupboard The operator must be instructed to check the state of the chemicals regularly Set up of Regeneration Unit RU 24 above the level of the X ray developer is not p
8. from the film intake and let the cycle continue til the end lifting bath in upper position e Switch off X ray developer 15 2 XR 24 PRO e Switch on the X ray developer and select program Endo film transport time 3 min e Lay a film in the film intake such that the film intake flap is activated but so that the film is not transported e Wait approx 30 min until the Regeneration Unit has operated 4 times Remove the film from the film intake and let the cycle continue til the end lifting bath in upper position e Switch off X ray developer 16 Cleaning the X ray Developer Every 3 months Change chemicals See Installation and Operating Instructions 9000 600 74 30 Chemical cleaning of roller sets in cleaning bath see enclosed notes A3 Poster 9000 600 14 01 or Instructions for Cleaning Roller Sets 9000 600 22 included with XR Clean Set 17 Disposal of Chemicals When disposing of developer and lt fixer observe all local and regional regulations In Germany and many other countries X ray chemicals must be disposed of as special waste TROUBLESHOOTING The following descriptions of troubleshooting procedures are designed for technical staff only Repairs may only be carried out by Durr Dental or by a person or agency authorised by Durr Dental Before carrying out any repair or maintenance procedures remove power supply 18 Troubleshooting Tips for XR 24 XR 24 Il XR 24 N
9. the piston stroke If the amounts pumped by the developer pump and the fixer pump are not the same then this can be regulated by altering the piston stroke of each pump e Loosen the socket screw 30 e Use a screwdriver or spanner to turn the hexagonal screw 29 to change the piston stroke setting Turning in the direction 100 the amount pumped increases Turning in the direction 0 the amount pumped decreases gt The optimal pump volume is factory J set Fig 15 e Finally tighten the hex socket screw 30 14 Commissioning e After finishing all re setting that may be necessary drain all water from the baths in the regeneration unit of the X ray developers and place the chemicals into position as appropriate for the model of X ray developer and according to the Installation and Operating Instructions of that model The X ray developer should never be operated without the roller set If a roller set is missing then it is possible for developer and or fixer to be forced under pressure vertically and spray out of the X ray developer Chemicals irritate eyes and skin and there is danger of severe damage to the eyes Without the developer and fixer roller sets transport of chemicals to the baths is no longer possible There is danger of chemicals getting in the eyes and of chemicals mixing together If chemicals get into eyes wash thoroughly with water and consult doctor A OPERATION
10. ON e Alter setting Factory setting 30s or changes the parameter value confirms new value e Finish service set up routine Switch off appliance at main switch press min 2 s 12 Check Settings 12 1 XR 24 XR 24 II XR 24 NOVA Check regeneration at start of operation e Main switch ON e When the appliance is switched on the Regeneration Unit must be activated and developer and fixer will be pumped to the baths of the X ray developer e Check the appliance for leaks Check regeneration impulse for film length e Main switch ON e Set fast forward to ON film transport set to 3 min Lay a film in the film intake such that the film intake flap is activated but so that the film is not transported After approx 8 min the regeneration pumps should switch on and developer and fixer should be pumped into the baths of the X ray developer e Check the appliance for leaks Check regeneration pump performance e The developer and fixer pumps should transport the same amount of liquid into the baths of the X ray developer e Fill two measuring beakers with the same amount of water approx 0 5 liter Place these in the Regeneration Unit and place the two hoses from the regeneration containers into the measuring beakers Check that the pumps feed the identical amount of water If necessary alter the pump transport settings See section 13 Setting regeneration pump piston stroke 12 2 XR 24 PRO
11. OVA Fault Possible causes Remedy 1 Regeneration e Frequent use of the appliance e Switch off the machine only during containers are main switch surgery mains the midday break and keep on empty after only switch or constant interruption of Stand By during working hours a few hours power supply Only when Regeneration on Operation activated e Electronic relay K3 of XR24 sticks or electronics defect e Clean contacts or replace electronics Order No 1700 210 52 2 Films not fixed e Regeneration containers empty completely and veil on film e Pump operating time too short e Regeneration containers or their hoses are interchanged e Non return valve of regeneration pump stuck or wrongly positioned e Regeneration hoses from the Regeneration Unit to the X ray developer twisted e Film shelf life exceeded e Chemicals shelf life exceeded e Refill the regeneration containers and repeatedly restart at main appliance switch using the regeneration on operation function If there is still no improvement replace all chemicals in the machine e Pump operating time needs adjusting via potentiometer e Drain chemicals from the machine and clean thoroughly Connect the regeneration containers in the correct positions and refill with fresh chemicals e Clean non return valve replace if required Check for correct positioning e Lay the hoses with no twists or bends Observe film shelf life date e O
12. bserve chemicals shelf life date If shelf life of chemicals is exceeded do not use and dispose of appropriately 18 3 Regeneration pump not working e Light barrier on the drive shaft XR24 tachometer generator XR24 ll or electronics defect e Cable connections to Regenerati on Unit loose or disconnected e Regeneration pump motor blocked e Regeneration time at potentiometer set at Os 19 Troubleshooting Tips XR 24 PRO e The impulse of the light barrier can be checked via Service PCB XR24 Order No 1700 031 00 check impulse of the LED drive motor XR24 ll or replace electronics e Check all cable connections e Check the motor for any mechanical faults e g turn the fan wheel e Set potentiometer to ca 30s and check amount of regeneration material pumped Remedy l Regeneration containers are empty after only a few hours e Regeneration time set too long e Electronics do not switch off e Check regeneration timer setting e Replace electronic parts 2 Films not fixed completely and veil on film e Regeneration containers empty e Pump operating time too short e Regeneration containers or their hoses are interchanged e Non return valve of regeneration pump stuck or wrongly positioned e Regeneration hoses from the Regeneration Unit to the X ray developer twisted e Film shelf life exceeded e Chemicals shelf life exceeded e Refill the regeneration co
13. cket 15a to the rear of the X ray developer and secure in place with the locking screw 15a 10 2 XR 24 PRO e Remove socket cap 15b to the rear of the X ray developer pN e Use the connection port 15a from the 15a assembly set provided 1700 284 00 e Put connection port into the prepared opening using the 4 screws Connect the cable set as illustrated Fig 9 5 Place the Regeneration Unit plug in the L socket and secure in place with the locking screw 8a 15b Circuit diagram XR 24 PRO X1 X2 Plug X3 Regeneration Unit 1700 216 50 X2 d26 L X2 zZ28 N X2 Z32 PE 11 Setting the Regeneration Electronics Before setting fill the X ray devel oper baths with water according to the individual require ments of the surgery We recommend for example that where a large number of films are de veloped the regeneration time should be lowered in order to avoid unne cessary consumption of chemicals i The pump running time should be set 11 1 XR 24 Switch S1 ON OFF e If switch 22 is set to OFF regeneration will take place after 1 3m of developed film e If switch 22 is set to ON then additionally regeneration will take place every time the appliance is switched on Switch S1 50 100 If switch 21 is set to 100 the
14. e flammable anesthetic material skin cleansers oxygen and skin disinfectants are present This appliance is not to be used in any areas where the atmosphere could cause fire lt 2 1 5 Combining Appliances Units may only be connected to the system or to other units when it has been established that there is no reduction of safety for the patient the operator or the environment through such connection Where it is not absolutely clear from the documentation whether the safety is reduced by such connection then the operator must establish e g by contacting either the manufacturer or an expert that there is no danger to the patient the operator or the environment through such connection 1 6 Electrical Safety Notes This regeneration unit may only be used with a correctly fitted standard earthed plug and socket Before connecting the appliance to the power supply check that the current required and the frequency is the same as that provided at the power outlet No extension cables should be used to connect the machine to the power outlet Warning Check the appliance and the power supply cables for correct installation and possible damage before switching on Damaged cables plugs and sockets must be replaced before use The appliance should not be used in the patient s vicinity A minimum distance to patient of 1 5 meters is recommended 1 7 Warnings and Symbols In the Installation and Operating Instruction
15. ermissible This set up position makes it possible that chemicals leak into the X ray developer baths Please ensure that all connecting hoses from the Regeneration Unit RU 24 to the X ray developers are laid without any twists or bends The distance between Regeneration Unit and X ray developer should not exceed 2m When setting up the X ray developer ensure good access to it and to the collecting tanks 8 Preliminary measures The following measures need only be taken when the Regeneration Unit is subsequently being connected to a X ray developer e Remove mains plug 1 from socket e Lift cover 2 e Drain any chemicals from the X ray developer e Open the green catch 3 on the film intake roller set 6 e Remove roller set 6 e Open the green catch 3 and the clips 4 of the dryer roller set 5 e Swing the dryer roller set 5 towards the rear and lift out e Rinse the baths with warm water e Close the water tap e Remove the cover necessary for working 8 1 Remove front cover e Unscrew the two quick release screws 11 from the front cover panel 12 e Unscrew the three Philip s screws 7 and remove the front cover panel 12 8 2 Remove rear cover e Unscrew the three Philip s screws 7 and remove the rear cover panel 9 8 3 Remove side covers e Remove front 12 and rear panels 9 lift the side panels 10 upwards to remove
16. excluded provided it is fitted according to the instructions However in order to avoid any possible damage or injury we are obliged to point out the following safety measures e When operating this appliance all local rules and regulations must be observed Any modification whatsoever is not permitted any guarantees covered by Durr Dental thus become invalid In the interests of ensuring problem free running the owner and operator are responsible for observing all rules and regulations e Retain all packing material for possible return of the product to the manufacturer Take care that it does not fall into the hands of children Only the original packing guarantees optimal safety of the appliance during transport Should return of the product to the manufacturers be necessary during the guarantee period D rr Dental accepts no responsibility for damage occurring during transport where the original packaging was not used This product is a technical appliance and may only be installed and operated or used by someone who has been trained or who has experience of how to use the appliance correctly e Before every use the operator must check the functional safety and the condition of the appliance The operator must be knowledgeable in the operation of the appliance The product is not designed to be used in medical treatment areas where there exists the danger of explosion Areas where explosions could occur are those wher
17. n the maximum pump running time of the Regeneration Unit is 60s e By turning the switch 21 to 50 then the maximum pump running time of the Regeneration Unit is halved to 30s Potentiometer REG regeneration time The amount of chemical transported to the X ray developer depends on the pump running time of the Regeneration Unit The potentiometer 23 can be used to set the pump time from gt 0s to lt 60s lt 30s The pump operating time is factory set at 30s In this time approx 190ml fresh developer and fresh fixer are pumped to the baths of the X ray developer If further adjustment is necessary the potentiometer knob 23 can be used to change the pump operating time 11 2 XR 24 Il and XR 24 NOVA The controller for the Regeneration Unit of XR 24 Il and XR 24 Nova is not integrated into the main board For these models the controller can be found on the PCB 24 Order No 1700 212 00 which is slotted onto the main board The slots for this printed circuit board can be found in the upper left corner of the main board and are marked X13 and X14 Before slottting PCB into position A 24 remove power supply to the X ray developer Setting for regeneration and pump operating time are carried out on the PCB 24 Switch X3 Regeneration on appliance operation ON OFF e If switch 27 is set to ON regeneration on appliance operation is additionally activated and when the X ra
18. nd Operating Instructions should be passed on to any uture purchaser or explained to any new operator Safety for the operator as well as trouble ree operation of the unit are only ensured if use is made of original equipment parts oreover use may only be made of those accessories that are specified in the echnical documentation or that have been expressly approved and released by D rr Dental for the intended purpose Any warranty or guarantee becomes invalid in the case where parts or accessories are used which are not supplied by Durr Dental Durr Dental only regard themselves as being responsible for the equipment with regard to safety reliability and proper unctioning if assembly resettings changes or modifications extensions and repairs have been carried out by Durr Dental or an agency authorized by Durr Dental and if the equipment is used in conformity with the Installation and Operating Instructions e The developer unit herein described conforms to the relevant safety standards valid at this time All switches processes trade marks software programs and appliances named in this document are registered names e Any reprinting of the technical documentation in whole or in part is subject to prior written approval of Durr Dental 1 4 General Safety Information This appliance has been so designed and constructed by Durr Dental that any danger arising from the use of this product is virtually
19. ntainers If there is still no improvement replace all chemicals in the machine e Re set pump operating time at higher value e Drain chemicals from the machine and clean thoroughly Connect the regeneration containers in the correct positions and refill with fresh chemicals e Clean non return valve replace if required Check for correct positioning e Lay the hoses with no twists or bends Observe film shelf life date e Observe chemicals shelf life date If shelf life of chemicals is exceeded do not use and dispose of appropriately 3 Regeneration pump not working e Motor tachometer generator or electronics defect e Cable connections to Regenerati on Unit loose or disconnected e Regeneration pump motor blocked e Check the impulses of the light barrier and the impulses of the roller drive or replace electronics e Check all cable connections e Check the motor for any mechanical faults e g turn the fan wheel 19
20. o XR 24 XR 24 Il XR 24 NOVA The regeneration pumps of the X ray developer are activated every time that the appliance is initially switched on and furthermore are reactivated after every length of 1 3m of developed film material when the regeneration switch is correctly set switch C to ON For the duration of time that the film intake is activated via light barrier H on a film being fed into the appliance an impulse generator A produces rotational impulses which are counted the number of impulses being proportional to the length of the film The potentiometer D allows the running time of the regeneration pumps to be set at any interval between 0 s and 60 seconds The running time of the regeneration pump is factory set at 30 s In this time the pumps feed c 190 ml fresh chemicals into the developer and fixer baths of the X ray developer from the 5I regeneration canisters Switching off the pumps and or switching off the X ray developer transmits a delete impulse to the counter which then resets at zero A Impulse generator A1 XR24 Drive shaft light barrier A2 XR24 Il Drive motor impulse generator A2 XR24 Nova Drive motor impulse generator B Regeneration Unit C PCB regeneration switch On Off D Potentiometer for time setting G Reduction of regeneration time to 50 30s H Film intake light barrier 6 2 Regeneration Unit RU 24 connected to XR 24 PRO The regeneration pumps of the XR 24 PRO are reactivated after
21. s use is made of the following terms or symbols to denote information of special importance Information requirements and prohibitions on preventing personal injury and extensive damage to propert Special information concerning the l economical use of the appliance and other instructions Observe Installation and Operating Instructions CE CE Labeling Power on off OCOie Enter Confirm selection Select program 2 Product information 2 1 Correct Usage The DURR Regeneration Unit is designed solely for use with DURR DENTAL X ray developer units of the model series XR Precise observance of the installation and operating instructions is a pre condition for use of the unit for the intended purpose and for its correct installation operation and maintenance 2 2 Incorrect usage Any other use or use beyond what is specified is deemed to be not for the intended purpose The manufacturer accepts no liability for damage resulting therefrom All risk is borne solely by the user 3 Contents Regeneration Unit RU 24 for X ray developers XR 24 230V 240V 50Hz 60H 1700 820 00 100V 110V 50Hz 60H 1700 830 00 F Before connecting the regeneration unit to the developer please make sure to check the following Is the regeneration unit to be connected to a developer of the model XR 24 XR 24 Il XR 24 NOVA or to an XR 24 PRO For connection to an XR 24 PRO Use the assembly set
22. y developer is switched on regeneration occurs e If switch 27 is set to OFF regeneration occurs only after 1 3m of film has been developed Switch X4 50 100 e If switch 26 is set to 60s then the maximum pump running time of the Regeneration Unit is 60s e If switch 26 is set to 30s then the maximum pump running time of the Regeneration Unit is halved to 30s Potentiometer P1 Reg time The amount of chemical transported to the X ray developer depends on the pump running time of the Regeneration Unit The potentiometer 28 can be used to set the pump time from gt 0s to lt 60s lt 30s The pump operating time is factory set at 30s In this time approx 190ml fresh developer and fresh fixer are pumped to the X ray developer baths If further adjustment is necessary the potentiometer knob 28 can be used to change the pump operating time 14 14 11 3 XR 24 PRO The regeneration function ON OFF and the regeneration time can be read on the display of the X ray developer Fig 14 Please refer to the Installation and Operating Instructions of the X ray developer XR 24 PRO order no 9000 600 74 30 See section 18 6 Service Routine e Start Service Routine Switch off appliance at main switch press min 2 s Simultaneously press min 4s Appliance is in service set up routine e Service function selection Using keys and display select REGENERATE then select REGEN
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