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The appliances must be checked in such a way as to verify that the heat output is correct:
•
The heat output (thermal power) is indicated on the data plate of the appliance.
•
Firstly, check that the appliance can be used with the type of gas supplied; then check that the indication on the
plate corresponds to the gas to be used. For converting to another type of gas, check that the type of gas complies
with what is stated in this instruction manual.
The pressure is read with a gauge (minimum resolution of 0.1 mbar) inserted in the relative pressure outlet.
Remove the hermetically closed screw and connect the gauge pipe.
After reading, put back the screw, tightening it hermetically and check for leaks.
Connection for liquid gas G30/G31
The connection pressure for liquid gas is 30 mbar with butane and 37 mbar with propane.
Check the plate, read the pressure and verify that the description of the nozzle installed corresponds to the one supplied
by the manufacturer.
Connection with natural gas H G20
The connection pressure for natural gas is 20 mbar.
Check the plate, read the pressure and verify that the description of the nozzle installed corresponds to the one supplied
by the manufacturer.
All the burners are provided with a bush for regulating the primary air which must be positioned at a distance h
indicated in the technical data table.
CWT-64G 1 burner
CWT-68G 2 burners
(max 5 kW min. 2,65 kW)
Burner Injector 1/100 mm
Min. output adjustment 1/100 mm
Pilot Injector
Primary air h=mm
Consumption
CWT-64G 1 burner
(max 8,9 kW min. 4,65 kW)
Burner Injector 1/100 mm
Min. output adjustment 1/100 mm
Pilot Injector
Primary air h=mm
Consumption
RULES FOR CONVERTING AND INSTALLING OTHER TYPES OF GAS
Our appliances are tested and regulated for liquid gas (see plate inside).
The conversion or adaptation to another type of gas must be carried out by a specialized technician. The nozzles for the
various types of gas are in a packet supplied with the appliance and are marked in hundredths of mm (see the technical
data table).
After having carried out the conversion for another type of gas, it is necessary to regulate minimum output by turning
the screw to the right or to the left until the minimum heat output reaches 2,65 kW (CWT-64G, CWT-68G) or 4,65 kW
(CWT-66G).
SUBSTITUTING THE NOZZLE IN THE MAIN BURNER
•
Remove the front fixing screws from the panel, remove the start-up cable from the piezoelectric ignition device
•
Using a suitable spanner, unscrew the nozzle and substitute it with the right one (see the technical data table).
SUBSTITUTING THE NOZZLE IN THE PILOT BURNER
The flame of the pilot burner has fixed air.
GB
CHECKING HEAT OUTPUT
CHECKING PRIMARY AIR IN MAIN BURNERS
TECHNICAL BURNERS DATA TABLE
12,87 kWh/KG
G30
BUTANE
28 mbar
120
70
30
open
kg/h 0,453
150
70
30
open
kg/h 0,695
REGULATING MINIMUM OUTPUT
IE
IT
CH
12,68 kWh/KG
G31
PROPANE
37 mbar
120
70
30
open
kg/h 0,451
150
70
30
open
kg/h 0,692
22
3
9,45 kWh/m
st.
G20
NATURAL GAS
20 mbar
180
adjustable
51
open
m³st./h 0,614
220
adjustable
51
open
m³st./h 0,942
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