INSTALLATION (c) 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 mCe 8 7 6 5 4 3 2 1 0 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 l/h 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 27”. If the outlet temperature is too high, the boiler will stop both domestic hot water and the heating production and the error code 116 “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 by-pass to prevent the floor from reaching too high a temperature. / 18 420011270900 - Rev. 04 - 072024
INSTALLATION 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. 30 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. WARNING! INSUFFICIENT WATER IN THE TRAP CAN TEMPORARILY CAUSE THE FLUE GAS TO BE EXPELLED INTO THE SURROUNDING AMBIENT AIR Water circuit diagram 1 3 4 5 6 7 8 9 10 11 21 20 19 18 17 16 15 14 13 12 A B C D 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 11. Drain valve 10. Condensate Trap 12. Filling loop 13. Central Heating Filter 14. D.H.W. Flow Switch 15. Automatic By-pass 16. Diverter valve 17. Pressure Gauge 18. Water pressure sensor 19. Modulating Circulation Pump with air release valve 20. Expansion Vessel 21. Modulating Fan Installation and servicing instructions / 19
MAINTENANCE GUIDE 5. ANNUAL MAINTEN
TECHNICAL DATA GENERAL POWER SPECIF
TECHNICAL DATA Brand PRODUCT FICHE
TECHNICAL DATA Figure 1 Seasonal sp
Benchmark Commissioning & Warranty
SERVICE & INTERIM BOILER WORK RECOR
Manufactured by Ariston S.p.A. Vial
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INSTALLATION (c) 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 mCe 8 7 6 5 4 3 2 1 0 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 l/h 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 27”. If the outlet temperature is too high, the boiler will stop both domestic hot water and the heating production and the error code 116 “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 by-pass to prevent the floor from reaching too high a temperature. / 18 420011270900 - Rev. 04 - 072024
INSTALLATION 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. 30 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. WARNING! INSUFFICIENT WATER IN THE TRAP CAN TEMPORARILY CAUSE THE FLUE GAS TO BE EXPELLED INTO THE SURROUNDING AMBIENT AIR Water circuit diagram 1 3 4 5 6 7 8 9 10 11 21 20 19 18 17 16 15 14 13 12 A B C D 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 11. Drain valve 10. Condensate Trap 12. Filling loop 13. Central Heating Filter 14. D.H.W. Flow Switch 15. Automatic By-pass 16. Diverter valve 17. Pressure Gauge 18. Water pressure sensor 19. Modulating Circulation Pump with air release valve 20. Expansion Vessel 21. Modulating Fan Installation and servicing instructions / 19
MAINTENANCE GUIDE 5. ANNUAL MAINTEN
TECHNICAL DATA GENERAL POWER SPECIF
TECHNICAL DATA Brand PRODUCT FICHE
TECHNICAL DATA Figure 1 Seasonal sp
Benchmark Commissioning & Warranty
SERVICE & INTERIM BOILER WORK RECOR
Manufactured by Ariston S.p.A. Vial
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