6
3.4 Connection to gas
Installation of the rubber steel hose must be carried out so that the steel hose length is no greater than 1.5
m. Make sure that the steel hose is not squashed and will not come into contact with moving parts.
Verify that all the following conditions are met:
The steel hose is fixed to the steel hose connection with safety clamps.
No part of the steel hose is in contact with hot walls (max 50
o
C).
The steel hose is not under traction or tension and has no tight curves or twists.
The steel hose is not in contact with sharp objects or sharp corners.
If the steel hose is not perfectly airtight and leaks gas, do not try and repair it. Replace it with a new
steel hose and verify that the hose is not beyond its life cycle (screen printed on the hose).
The tightening torque between the connections that incorporate the gasket must not exceed 10mm.
Gas Connection
Connection with copper pipe:
The connection to the gas supply mains must be made so that no stresses
or strains of any kind are applied to the appliance. The connection can be
made using the adapter unit D with two conical elements, noting to
always fit the gasket C.
Connection with steel hose:
Use only continuous-wall stainless steel hoses that are compliant with the
relevant regulations. Always fit the gasket C between the fitting A and the
hose E.
When connecting to a hose, ensure that the total length of the pipeline is not more than 1.5m, as
well as ensure that the hoses are not crushed and will not touch moving parts.
The hose connector G illustrated in the diagram is not supplied with the appliance. Only use hose
connectors that are compliant with local standards.
4. ADAPTATION TO DIFFERENT TYPES OF GAS
Before carrying out the following operations, disconnect the appliance from the electrical supply.
The appliance is preset for natural gas G20 (2H) at a pressure of 20 mbar. For other gas types, the
burner nozzles must be changed and the minimum flame adjusted on the gas taps. To change the
nozzles, proceed as described in the following sections.
