Conversion From One Type Of Gas To The Other - Riello TAU Unit 50 Installation And Maintenance Manual

3.5

Conversion from one type of gas to the other

The boiler TAU Unit is delivered set up to operate with G20
(methane gas), however it can be converted to operate with the
following gases:
TAU Unit
methane Country
50
No kit expected. No gas regulation /
BE
G25
With dedicated kit. Regulation/
FR modification of the parametrization as
EN With dedicated kit. Regulation/
G31 FR modification of the parametrization as
CH
9
Note that all modifications to the gas feed system are for-
bidden in Belgium. In Belgium, contact
sistance Service.
9
Conversions must only be performed by qualified personnel
from 's Technical Assistance Service, even after the boil-
R
er has been installed.
Before making the transformation:
− Cut power off by setting the main switch of the system
and of the thermal module to "off"
− Close the fuel shut-off valve
Install the kit following the indications on the manual supplied
with the accessory.
− Apply the new gas sticker (6) supplied inside the panel-
ling, and remove the one for G20
6
TAU Unit TAU Unit TAU Unit
70 100 115
parametrization allowed.
described below.
described below.
R 's Technical As-
9
After installing the kit, check the tightness of all connections
made.
If all conditions are met, power the thermal module positioning
the main switch of the system and of the equipment to "on".
Open the fuel shut-off valve.
9
Once the conversion is completed, adjust the thermal unit
again following what indicated in the paragraph "Adjust-
ments".
9
The pressure values for the gas supply are:
− for G20 = 20 mbar
− for G25 = 25 mbar
− per LPG (G31) = 37 mbar
65
COMMISSIONING AND MAINTENANCE