Instructions For The Installer - Ariston CP 857 GT Instructions For Use And Installation

The following instructions are provided for qualified installers
so that they may accomplish installation, adjustment and
technical maintenance operations correctly and in compliance
with national current regulations and standards.
Important: the appliance should be disconnected from
the mains electricity supply before any adjustment,
maintenance, etc. is carried out. Maximum caution should
be exercised should it be necessary to keep the appliance
connected to the electricity supply.
The cookers have the following technical specifications:
Cat. II2H3+
Class 1
The maximum dimensions of the appliance are given in the
figure on page 2. For trouble-free operation of appliances
installed in housing units, the minimum distances shown in
fig.8 should be observed. Adjacent surfaces and the wall at
the rear should also be able to withstand a temperature of 65
°C
fig.9
fig.8
Prior to installing the cooker, 99 ÷ 155 mm high supporting
feet (provided) should be fitted into the holes to be found in
the bottom of the cooker (fig.9). These feet are screw-
adjustable and whenever necessary should be used to make
sure the cooker stands level.
Positioning (only for UK)
Important: this unit may be installed and used only in
permanently ventilated rooms according to the British
Standards Codes Of Practice: B.S. 6172/B.S. 5440, Par. 2
and B.S. 6891 Current Editions. The following requirements
must be observed:
a) The cooker should not be installed in a bed sitting room
with a volume of less than 20m3. If it is installed in a room of
volume less than 5m3 an air vent of effective area of 110cm2
is required, if it is installed in a room of
volume between 5m3 and 10m3 a supplementary airvent area
of 50cm2 is required, if the volume exceeds 11m3 no airvent
is required. However, if the room has a door or a window
which opens directly to the outside
no air vent is required even when the volume is between 5m3
and 11m3.
b) During prolonged use of the appliance you may consider it
necessary to open a window to the outside to improve
ventilation.
c) If there are other fuel burning appliances in the same room,
B.S.5440 Part 2 Current Edition, should, be consulted to
determine the requisite air vent requirements.

INSTRUCTIONS FOR THE INSTALLER

Class 2 sub-class 1
min. 50mm
In a chimney stack or branched flue
(exclusively for cooking appliances)
Positioning
This appliance may only be installed and operated in
permanently ventilated rooms in compliance with provisions
laid down by current regulations and standards. The following
requirements must be observed:
• The appliance must discharge combustion products into a
special hood, which must be connected to a chimney, flue
pipe or directly to the outside (fig.10).
• If it is impossible to fit a hood, the use of an electric fan is
permitted, either installed on a window or on an external
wall, which must be switched on at the same time as the
appliance.
Kitchen ventilation
The air flow into the room where the appliance is installed
must be equal to the quantity of air that is required for regular
combustion of the gas and for ventilating the same room. Air
must be taken in naturally through permanent apertures made
in the outside walls of the room or through single or branching
collective ventilation ducts in compliance with the standards
in force. The air must be taken directly from the outside,
from an area far from sources of pollution. The ventilation
aperture must have the following characteristics (fig.11A):
• total free cross section of passage of at least 6 cm² for
every kW of rated heating capacity of the appliance, with
a minimum of 100 cm² (the heating capacity is indicated
on the rating plate);
• it must be made in such a way that the aperture cannot be
obstructed both on the inside and outside of the wall;
• it must be protected, e.g. with grills, wire mesh, etc. in
such a way that the above-mentioned free section is not
reduced;
• it must be situated as near to floor level as possible.
Detail A
A
Examples of ventilation holes
for comburant air
fig. 11A
9
fig.10
Directly to the outside
Adjacent Room to be
room ventilated
Enlarging the ventilation slot
between window and floor
fig.11B