Ariston HS C 24 FF NG Installation And Servicing page 51

Before installing the appliance
The boiler heats water to a temperature below boiling.
It should be connected to a heating system and to
a domestic water mains supply, both of which must
correspond in size to the performance and its power of
the appliance.
Before connecting the boiler, it is first necessary to perform
the following operations:
- Carefully wash the system piping in order to remove any screw
thread or welding residues, or any dirt which might prevent the
boiler from operating correctly.
- Make sure that the boiler is set up for operation with the type
of gas available (read the information on the packaging label
and on the boiler data plate).
- Make sure that there are no obstacles inside flue exhaust and
that it does not contain any discharge from other appliances,
unless the flue is meant to serve more than one user (in
accordance with current legal requirements).
- Where there is already a connection to existing flue exhausts,
check that these exhausts have been perfectly cleaned and are
without residues, because any disconnection could obstruct
the passage of fumes and create potentially dangerous
situations.
- Make sure that, where unsuitable flue exhausts are attached,
they have been ducted.
- In areas with particularly hard water, limescale may build up
on the components inside the boiler and reduce its overall
efficiency.
C-type boilers, with combustion chambers and air supply
circuits which are completely sealed from the air outside,
do not have any limitations concerning the ventilation and
size of the room in which they are installed.
So that the normal operation of the boiler is not
compromised, the place in which it is installed must be
suitable with regard to the operating limit temperature
value and the appliance should be protected so that it does
not come into direct contact with atmospheric agents.
The boiler must be installed on a solid, non-combustible,
permanent wall to prevent access from the rear.
When creating a space for the boiler, the minimum
distances (which ensure that various parts of the boiler
may be accessed after it has been installed) should be
respected.
WARNING
NO INFLAMMABLE ITEMS SHOULD BE
LEFT IN THE VICINITY OF THE BOILER.
MAKE SURE THE INSTALLATION SITE
AND ANY SYSTEMS TO WHICH THE
APPLIANCE MUST BE CONNECTED ARE
FULLY COMPLIANT WITH THE CURRENT
APPLICABLE LEGISLATION.
IF DUST AND/OR AGGRESSIVE VAPOURS
ARE PRESENT IN THE ROOM IN WHICH IT IS
TO BE INSTALLED, THE APPLIANCE MUST
OPERATE INDEPENDENTLY OF THE AIR
INSIDE THE ROOM.
WARNING
THE INSTALLATION AND FIRST
IGNITION OF THE BOILER MUST BE
PERFORMED BY QUALIFIED PERSONNEL
IN COMPLIANCE WITH CURRENT
NATIONAL REGULATIONS REGARDING
INSTALLATION, AND IN CONFORMITY WITH
ANY REQUIREMENTS ESTABLISHED BY
LOCAL AUTHORITIES AND PUBLIC HEALTH
ORGANISATIONS.
Gas connection
The boiler was designed to use gases belonging to the categories
as shown in the following table.
COUNTRY MODEL
HS C 24 FF NG
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; you should also make sure
that the shut-off valve is the right size and that it is connected
correctly.
Before carrying out the installation, it is recommended that
the fuel pipes are cleaned thoroughly in order to remove any
residues which could prevent the boiler from operating correctly.
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 of the generator may be reduced,
causing inconvenience for the user.
INSTALLATION
CATEGORIES
II
2H3P
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