Installing The Boiler; Gas Connection - Ariston CLAS ONE R 24 Installation And Servicing Instruction

Installing the Boiler

Please check that you are familiar with the installation requirement
before commencing work.
The installation accessories described in the following list are
included in the boiler packaging:
- Hanging bracket
- A paper template (showing the dimensions of the boiler with 5
mm side clearances)
- Gas isolation valve (compression)
- Washers
- Installation, Servicing and User manual
- Flue gasket
- Fixing screws
Method of positioning the boiler on the wall
The paper template can be used to ensure the correct positioning of
kitchen cabinets etc.
The paper template has to be fixed to the wall and used to locate
the position of the hanging bracket and the centre for the flue hole.
Drill and plug the wall and secure the hanging bracket using the
screws provided, ensure the hanging bracket is fixed square on the
wall. Remove the boiler from its packaging.
Place the boiler on the hanging bracket.
N : t
ote he appliaNce must Not be fitted oN a combustible wall surface
Connecting the boiler to the system
- Remove the boiler casing as described on page 14
- Remove the cap and connect the gas isolation valve to the boiler
using the washer provided (C) page 13;
Filling the system/condensate discharge
Fill the central heating and bleed air from the system as described in
the Commissioning Instructions.
The system should be carefully checked for leaks, as frequent refilling
could cause premature system corrosion or unnecessary scaling of
the heat exchanger.
Pay special attention not to bend the condensate silicone drain
pipe is such a way as to interrupt the flow. Please only use drain
pipe material compatible with condensate products (refer to BS
6798:2000).
The condensate flow can reach 2 litres/hour because of the acidity of
the condensate products (Ph close to 2), take care before operation.
See page 12 for condensate discharge options.

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; ensure the gas isolation valve is
connected correctly, see drawing opposite.
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.
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INSTALLATION
C
C. Gas Inlet
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