ROSIERES RTV 640 PL Notice D'emploi Et D'installation page 9

CHANGING THE GAS TYPE
The calorific capacity and pressure of the gas vary according to the type of gas.
When changing the gas, the technician should successively : change the jets, make the gas connection to the installation and set the
minimum flow of all the gas burner tap.
• CHANGING THE JETS
Each jet is designated by size.
To gain access to the jets, remove the pan supports,
and remove the burner cap and body.
Take a spanner and unscrew the jet.
According to the table below, fit the correct jet for the
type of gas to be used.
Secure the jet tightly.
Set the idle flame.
Replace the burner body, cap and the pan support.
BURNERS
Gas mbar
* G 20 20
* G 25 25
G 30 29
G 31 37
* Manufacturer setting: G 20-20 mbar - G 25-25 mbar
• SETTING THE IDLE FLAME
If the gas type has been altered, the stability of the flame in the minimum flow
must be checked and set by adjusting the by-pass screw.
To access the top burner by-pass screw, remove the control panel knobs.
a) Natural gas :
- unscrew the by-pass screw one turn,
- replace the combined control-knob, light the burner and set to low flame,
- remove the combined control-knob again, screw the by-pass screw until a
reduced flame is obtained, staying stable when going from high to low position.
- replace the combined control-knob.
b ) Butane- propane gas :
the setting is done by screwing right in (without forcing) the by-pass screw
whose calibrated hole provides the minimum flow.
auxiliary semi-rapid
Jet kW Jet
76 1,00 101
76 0,90 101
50 1,00 66
50 1,00 66
kW = Power of the burner
Rapid burner
rapid
kW Jet kW
1,75 118 2,50
1,60 118 2,30
1,75 80 2,50
1,75 80 2,50
Warning :
never losen the
others screws!
8 GB
Semi-rapid burner
JET
ultra-
rapid
Jet kW
144 3,50
144 3,20
94 3,50
94 3,50
By-pass screw