1 year ago

Clas ONE - Installation Manual

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


INSTALLATION INSTALLATION Fitting the Twin Pipe (Ø80 / 80) When siting the twin flue pipe, the air intake and exhaust terminals must terminate on the same wall, the centres of the terminals must be a minimum of 280 mm apart and the air intake must not be sited above the exhaust terminal (refer to Fig. 10). The air intake pipe can be run horizontally, however, the terminal and the final 1 metre of flue must be installed either horizontally or with a slight fall away from the boiler to avoid rain ingress. It is also strongly recommended that the air intake pipe run be constructed of insulated pipe to prevent condense forming on the outside of the tube. Note: See table for maximum and minimum flue runs. Where it is not possible to terminate the flue within the distance permitted for coaxial flues, the twin flue pipe can be used by fitting a special adaptor to the flue connector and using the aperture for the air intake located on top of the combustion chamber. Ensure the exhaust tube has a minimum fall back to the boiler of 1˚ / metre (1˚ = 17.5mm/metre) The maximum permissible flue length for twin flue is dependent on the type of run used (see table on page 24). For further information relating to flue runs not illustrated, please contact the Technical Department on 0333 240 7777. Always ensure that the flue is adequately supported, using one flue bracket per extension and avoiding low points. (ARISTON supply suitable clamps as Part No. 3318015). To utilise the air intake it is necessary to: 1) Remove the top of the air intake by cutting it with a suitable knife. 2) Insert the header on the tube or the elbow up until the lower stop (you do not have to use the washer). 3) Insert the elbow/header in the boiler air intake hole and fasten it with screws. The twin flue pipes can be fitted with or without additional elbows and need no clamps, simply ensure that the lip seal is inserted in the female end of the flue pipe and push the extension piece fully into the previous section of flue pipe or elbow, check that the lip seal is not dislodged when assembling the flue (greasing the seal will aid assembly). Twin pipe can also be converted back to Coaxial flue to enable vertical termination with a coaxial kit by using the pipe bridge (Twin - Coaxial Adaptor - Part No. 3318089). When running the twin flue pipe vertically. It is not possible to terminate concentrically horizontally. Termination is only possible with separate air and exhaust terminals. 22 /

AIR INTAKE EXHAUST AIR INTAKE INSTALLATION 120 180 195 105 Fig. 9 For coaxial systems, the maximum development value, mentioned in the table below also takes into account an elbow. For twin flue systems the maximum development value, mentioned in the table includes the exhaust gas/air intake terminal. AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST Twin flue systems outlets should respect the following instructions: 1- Use the same ø 80 mm flue pipes for the air intakes and exhaust gas ducts. 2- If you need to insert elbows in the air intake and exhaust gas ducts, you should consider for each one the equivalent length to be included in the calculation of developed length. 3- The exhaust gas duct should jut above the roof by at least 0.5 m. 4- The intake and exhaust gas ducts in Type C13 + C53 must be installed on the same wall, or where the exhaust is vertical and the air intake horizontal, the terminals must be on the same side of the building. Fig. 10 / 23