Ariston System A 24 RFF, System A 30 RFF

WIRING DIAGRAM FOR CONNECTION TO AN MTS

UNVENTED CYLINDER DIAGRAM A

Contents

Main SSYYSSTTEEMM AA Page Contents Page USERS INSTRUCTIONS 1. Control panel 40 Control panel (fig. 1) Connecting bracket Taps shown in Open position (fig. 2) 2. How to Use Switching on and filling instructions O PEN C 3. Maintenance 4. Guarantee 5. Practical information I 6. Setting the time clock 6.1 Setting the mechanical clock 6. Setting the time clock 6.2 Setting the Digital Clock Page INSTALLERS INSTRUCTIONS 7. Description 8. Dimensions 9. Hydraulic data With packaging : 24 kW : 34 kg 30 kW : 37 kg 390 10. Installation Requirements Page 10. Installation Requirements Page 11. Installing the Boiler 11. Installing the Boiler 60/100 mm 12. Connecting the Flue IMPORTANT!! 162 12.2 Fitting the 5 Flue ( 80 / 125 Horizontal/vertical) Screws Seal Clamp 12.1 Fitting the coaxial flue ( 60/100 Horizontal) Page 12.3 Fitting the Coaxial Flue ( 60 / 100 Vertical) 12.4 Fitting the twin pipe (80/80) 12. Connecting the flue 123,5 162 230 MIN * 200 132 123,5 25 Twin flue length diagram (24 and 30 kW) 12.4 Fitting the twin pipe flue (80/80) (continued) C AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST 13. Electrical connections Cable 230 V 2P + T System A System A Plus Page 13. Electrical connections 13.1 Fitting the mechanical and digital time clocks GBR GBR FIG. 38 13. Electrical Connections 13.2 Connecting Zone Valves (System A) * Page Page 14. Commissioning and Testing 14.1 Initial preparation 14.2 Initial start-up 14. Commissioning and testing 14.3 Adjusting the CO 14.6 Fitting the external sensor Adjustment screw 14.4 Gas Conversion 14.8 Completion 14.7 External sensor and ambient sensor set-up (where fitted) 14.9 Operational checks 14. Commissioning and testing 14.10 Instructing the end user 15. Fitting the casing 16. Sequence of operation Central Heating Mode 17. Adjustments and settings DISPLAY 2nd digit 1st digit 3rd digit 4th digit On/Off push button Reset push button Menu - 2 - Boiler conditions Indicates the conditions or the configurations of the boiler 5 Menu - 1 - Default register Record the last 10 defaults Menu - 3 - Boiler options Menu - 4 - Boiler settings Menu - 5 - Combustion rate control mode Menu - 6 - Thermo-regulation settings CH anti cycling delay setting : Display 17. Adjustements and Setting 15 2x 3 x 8 1 2 or SERVICING INSTRUCTIONS A 18. Replacement of parts 18.1 To Gain General Access 18.2 Access to the Combustion Chamber E D 18.2.1 Removing the air gas assembly Page J K L 18.2.5 Removing the fan 18.2.6 Removing the gas valve M1 N 18.2.7 Removing the heat exchanger M2 18.2.8 Removing the spark generator 18.3 Access to the Water Circuit Page Page 18.4 Access to the Control System Page 19. Incorrect function 21. Incorrect function 20. Gas conversion Fault Cause Solution 22. Maintenance Instructions 22.1 General remarks 22.2 Cleaning the primary exchanger 22.3 Operational test Page 24. Technical data Model Page FOR ALL BOILERS CONFIRM THE FOLLOWING " 25. Benchmark Commissioning Checklist CONTROLS FOR THE CENTRAL HEATING MODE, MEASURE & RECORD FOR COMBINATION BOILERS ONLY " 26. Service Interval Record T ERMS AND C ONDITIONS OF G If you have a problem with commissioning on installation, please contact our for customer reference Technical Department on 0870 241 8180