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8 Connecting the furnace
These actions must be carried out by a qualified
technician.
Installation must be carried out in accordance with the prevailing
regulations, the codes of practice and the recommendations in these
instructions.
Clean the gas supply pipe. The gas shut off valve should be located
on the back of the boiler. Pipe diameters must be defined in
accordance with ATG's (Association Technique de Gaz) B171
specifications.
8.1 Water discharge connection
Discharge condensation water directly into the main drain. Given the
degree of acidity (pH 3-5), use only plastic materials to make the
connection. Open the gas valve. Make the connection to the main
drain with a visible flow connection.
8.2 Combustive air supply
For operation dependent on ambient air, the aeration and air
discharge vents in the premises must comply with the regulations.
Germany: TRGI' 86, Edition 1996.
The aeration of the flue gas discharge pipe may also be used as the
air discharge.
8.3 Checking the gas inlet
These actions must be carried out by a qualified
technician.
Check the tightness of the gas line, including the gas valves.
Open all the stop valves on the gas inlet.
Empty the gas inlet.
Maximum authorised pressure on the gas valve: 150 mbar. In
the event of higher control pressures, disconnect the
condensing boiler from the gas inlet at the threaded connection
to the gas stop valve. Closing the gas stop valve is not
sufficient.
15/02/2011 - 300014279-001-J
To prevent damage caused by overpressure on the gas regulator, the
gas supply valve must be closed before carrying out the pressure test
on the gas supply pipe. Decompress before reopening the valve.
Maximum pressure: 150 mbar. In old gas networks, we recommend
fitting a gas filter with a large surface area and low water resistance
before this point.
The discharge duct must have a minimum gradient of 50 mm/m. The
discharge of condensation water via the gutter is not authorised, given
the risk of frost and the damage to the materials usually used for gutters.
If a flue gas discharge pipe is connected in a chimney, position the
boiler as close as possible to the chimney. Avoid long horizontal
sections of flue gas pipe.
Condensing boilers require a flue gas discharge system or a
fresh air inlet specially adapted to the method of operation.
Installation must be carried out in accordance with current laws.
DTG(E)130 - 35/45/65/90/115 Eco.NOxPlus
8. Connecting the furnace
31
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