54
3.4 Connection to gas (only gas models)
Although the appliance has two dryers which operate independently, there is only one gas inlet.
The dryers have an inlet at 1/2". All the gas models are designed to work with propane gas
(LPG) or natural gas (see the appliance's specifications plate).
Note:
The dryer is configured to operate with a burner pressure and gas in accordance with the
one that is indicated on the specifications plate. Check that the type of gas and pressure value in
the burner correspond to the specifications plate. If not, consult the supplier.
Do not connect a tube with an inner diameter less than that required for the machine.
Install a pressure regulator (only for LPG), a manual valve and a gas filter in front of the machine.
Make sure that the dirt does not enter the valve during connection.
Carry out a drip test with soapy water or a special product designed for this to check the water
tightness of the assembly.
For LPG propane gas (G31)
regulator with 37 mbar of supply pressure and 4 kg/h of
minimum flow.
For natural gas (G20)
without regulator, directly connect to the line (20 mbar) and install a
manual valve.
The dryer can be delivered from origin with 4.2 mm injectors regulated at a burner pressure of 8
mbar to operate with natural gas or delivered with 2.3 mm injectors regulated at a pressure of
28.8 mbar to operate with propane gas.
The dryer has spare injectors and a new specifications plate if installing the appliance to operate
with a different group of gas were to be necessary, allowing installing the machine in many
countries with the main fuels.
In the following table you can consult for each type of gas and in different countries the diameter of
the injector and burner pressure adequate for operating correctly.
DTP2-11 y DTP2-18 Power 2 x 12 kW
Gas
Group
Country
Injectors
Ø mm
Supply
pressure
mbar
Burner
pressure
mbar
Natu
ra
l g
as
G20
2E (and 2H)
Majority of the EU
4.2
20
8
G20
2H
HU
4.2
20
8
G20
2E+
FR, BE
3.4
20
18.9
G25
2E+
FR, BE
3.4
25
24.1
G25
2L
NL
4.2
25
12
G25
2LL
DE
4.2
20
12
G25.1
2S
HU
4.2
25
13
GZ.35
2Ls
PL
4.5
20
14
B
uta
ne
P
rop
an
e
G30
3B/P 30mbar
Majority of the EU
2.3
30
28.8
G30
3B/P
AT, DE, LU, NL
2.3
50
27.7
G30
3B/P 36mbar
PL
2.3
37
27.7
G30/G31 3+_28-30/37
BE, CZ, ES, IT, GB, IE, PT, FR
2.3
28-30/37
28.5/36.5
G31
3P
LU
2.3
37
36.5
