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3 years ago

Alteas ONE Net - Installation Manual

  • Text
  • Boiler
  • Heating
  • Flue
  • Appliance
  • Valve
  • Efficiency
  • Installation
  • Maintenance
  • Display
  • Maximum
  • Alteas

INSTALLATION Gas

INSTALLATION Gas connection Make sure, using the labels on the packaging and the data plate on the appliance itself, that the boiler is in the correct country and that the gas category for which the boiler was designed corresponds to one of the categories available in the country where it will be used. The gas supply piping must be created and measured out in compliance with specific legal requirements and in accordance with the maximum power of the boiler. Check that the supplied gas corresponds to the type of gas for which the boiler was designed (see the data plate located on the appliance itself). It is also important to check that the pressure of the gas (methane or LPG) you will be using to feed the boiler is suitable, because if it is insufficient the power may be reduced, causing inconvenience for the user. Instructions for removing the housing and inspecting the appliance. Before carrying out any work on the boiler, switch off the power supply using the external bipolar switch and close the gas tap. To access the inside of the boiler: - unscrew the two screws from the front panel (a), pull the panel forwards and uncouple it from the upper pins (b), - pivot the electronic unit by pulling it forwards (c). (a) Water connection The illustration below shows the connections for the water and gas attachments of the boiler. See valves configuration on page 13. Check that the maximum water mains pressure does not exceed 6 bar; if it does, a pressure reducing valve must be installed. For the measuring of the pipes and of the heating bodies in the heating system, the residual head value should be calculated as a function of the requested flow rate, in accordance with the values shown in the circulation pump graph. A B F C I D H E CAUTION!! REMOVE ONLY THE SCREWS SHOWN IN THE PICTURE (b) Legend: A. Central heating Flow B. Domestic Hot Water Outlet C. Gas Inlet D. Domestic Cold Water Inlet E. Central Heating Return F. Safety Valve Discharge H. Drain Valve I. Condensate discharge 14 /

INSTALLATION (c) To calculate the size of the heating installation, refer to the "Available pressure" graph below. Graph representing the available circulation pump pressure ∆T20 o C 600 500 400 mbar 300 200 100 0 0 200 400 600 800 1000 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 26”. 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. / 15

MANUALS