Extraction Of The Combustion Products; Connection To Gas - Smeg CX51GVE Manual

3.3 Extraction of the combustion products

The combustion products must be extracted by means of hoods connected to a natural draught
chimney whose efficiency is certain or via forced extraction. An efficient extraction system requires
precision planning by a specialist qualified in this area and must comply with the positions and
distances indicated by the regulations. When the job is complete, the installer must issue a certificate
of conformity.

3.4 Connection to gas

3.4.1 Connection with a rubber hose
Installation with a standards-compliant rubber hose must be carried out so that the length of the
piping does not exceed 1.5 metres. Make sure that the hose does not come into contact with moving
parts and that it is not crushed in any way. The inside diameter of the hose must be 8 mm for
LIQUID GAS and 13 mm for NATURAL GAS and CITY GAS.
Verify that all the following conditions are met:
•
the hose is fixed to the hose connection with safety clamps;
•
no part of the hose is in contact with hot walls (max. 50 °C);
•
the hose is not under traction or tension and has no tight curves or twists;
•
the hose is not in contact with sharp objects or sharp corners;
•
if the hose is not perfectly airtight and leaks gas, do not try to repair it: replace it with a new
hose;
•
verify that the hose is not past its expiry date (serigraphed on the hose itself).
CONNECTION USING RUBBER HOSES COMPLYING WITH THE CURRENT REGULATIONS IS
ONLY PERMITTED IF THE HOSE CAN BE INSPECTED ALONG ITS ENTIRE LENGTH.
THE TIGHTENING TORQUE BETWEEN CONNECTIONS THAT INCORPORATE THE GASKET
MUST NOT EXCEED 10Nm
3.4.2 Connection to natural and city gas
Make the connection to the gas mains using a rubber hose whose specifications
comply with the current regulations (verify that the reference standard is stamped
on the hose).
Carefully screw the hose connector A to the gas connector B of the appliance,
placing the seal C between them. Push the rubber hose D onto the hose
connector A and secure it with the clamp E that is compliant with the standard in
force.
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Instructions for the installer