Ariston CLAS B 28 FF, Installation And Service Instructions Manual

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33
installation
Instructions for opening the casing and performing an internal
inspection
rst disconnect it from
the electrical power supply using the external bipolar switch and
the gas valve.
To access the inside of the boiler, the following is necessary:
- loosen the two screws on the front casing ( a ), pull it forwards and
unhook it from the upper pins ( b )
- unhook the control panel (Fig. 7.29) and clip it into the frame of
the boiler (
c
)
the combustion
chamber. Pull it forwards and unhook it from the upper pins ( d )
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.
rst 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).
ue exhaust and that
it does not contain any discharge from other appliances, unless
ue is meant to serve more than one user (in accordance with
current legal requirements).
ue 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.
ue exhausts are attached, they
have been ducted.
- In areas with particularly hard water, limescale may build up on
ciency.
P-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 in ammable 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.
The installation and rst ignition of the boiler must be
performed by quali ed personnel in compliance with
current national regulations regarding installation, and
in conformity with any requirements established by
local authorities and public health organisations.
a
b
c
d