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Clas ONE - Installation Manual

  • Text
  • Boiler
  • Heating
  • Flue
  • Appliance
  • Clas
  • Installation
  • Efficiency
  • Valve
  • Parameter
  • Maintenance
  • Install

INSTALLATION

INSTALLATION INSTALLATION To calculate the size of the heating installation, refer to the "Available pressure" graph below. Graph representing the available circulation pump pressure ΔT20 o C mbar 600 500 400 300 Underfloor heating For appliances with underfloor heating, it is possible but not necessary to fit a safety thermostat onto the underfloor heating outlet. For the electrical connection of the thermostat see the section on “Electrical connections - pages 28-29”. If the outlet temperature is too high, the boiler will stop both domestic hot water and the heating production and the error code 1 16 “floor thermostat contact open” will appear on the display. The boiler will restart when the thermostat is closed during automatic resetting. If the thermostat cannot be installed, the underfloor heating equipment must be protected by a thermostatic valve, or by a bypass to prevent the floor from reaching too high a temperature. 200 100 0 0 200 400 600 800 1000 1200 l/h BEFORE THE DEVICE IS USED, FOR THE FIRST TIME THE TRAP MUST BE FILLED WITH WATER. The siphon is filled with water during deaeration procedure of the boiler (or heating system) - see p. 32 Ensure that the siphon contains water; if not, it must be refilled. Open the manual air vent (2) on the main exchanger until complete filling. Check again the system pressure on the pressure gauge. 2 WARNING! INSUFFICIENT WATER IN THE TRAP CAN TEMPORARILY CAUSE THE FLUE GAS TO BE EXPELLED INTO THE SURROUNDING AMBIENT AIR 16 /

INSTALLATION Water circuit diagram 1 1 3 3 4 4 5 6 21 5 6 21 20 20 7 8 19 7 19 9 10 18 17 16 9 10 18 17 12 11 15 14 13 12 11 14 13 A B C D E A C E 1. Air relief valve 3. Main Heat Exchanger 4. Detection/Ignition electrode 5. Central Heating Return Temperature Probe 6. Central Heating Flow Temperature Probe 7. Gas Valve 8. Secondary Exchanger 9. Safety valve 10. Automatic By-pass 11. Drain valve 12. Condensate Trap 13. Filling loop 14. Central Heating Filter 15. D.H.W. Flow Switch 16. Diverter valve 17. Pressure Gauge 18. Switch On/Off 19. Modulating Circulation Pump with air release valve 20. Expansion Vessel 21. Modulating Fan / 17