Installing The Boiler - Ariston CLAS HE R 12 Installation And Servicing Instructions

Installing the Boiler

Please check that you are familiar with the
installation requirement before commencing work
(pages 8 - 16).
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 19
- Remove the cap and connect the gas isolation
valve to the boiler using the washer provided (C)
page 18;
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 6798:000).
The condensate flow can reach  litres/hour because
of the acidity of the condensate products (Ph close
to ), take care before operation.
See page 16 for condensate discharge options.
installation
17