GB-5
D
GB
F
NL
I
E
Connecting the gas and air pipes
Gas connection (GA) and air connection (LA)
LA
GA
Cooling air connection (KA)
▷
Optional intermediate flange with an additional
cooling air connection on the burner.
▷
To increase the air volume in cooling mode.
KA
Table of threaded and flanged connections
▷
Threaded connection to ISO 7, flange dimensions
to ISO 7005, PN 16.
Type
GA*
LA**
KA
ECOMAX
®
0
G ½
G 1
G 1
ECOMAX
®
1
G ½
G 1
G 1½
ECOMAX
®
2
G ½
G 1½
G 1½
ECOMAX
®
3
G ½
G 2
G 1½
ECOMAX
®
4
G ¾
G 2½
G 2
ECOMAX
®
5
G 1
G 2½
G 2
ECOMAX
®
6
G 1
DN 80
N/A
* On ECOMAX
®
..L for LCV gas, connections may
differ depending on the project specifications.
** Burner size ECOMAX
®
0 to 5: threaded connec-
tion; from burner size 6: flanged connection.
▷
Install flexible tubes or bellows units to prevent
mechanical stress or transmission of vibration.
▷
Ensure that the seals are undamaged.
DANGER
Risk of explosion!
Ensure the connection is gas-
tight.
▷
The gas insert can be rotated in 90° steps if
necessary.
▷
We recommend that all the seals that are re-
moved to rotate the gas insert be replaced.
▷
The electrode must remain in its position at the
top left when the gas insert is rotated. The mixing
device (gas lance) must be rotated for this pur-
pose, see page 10 (Replacing the gas lance).
▷
If necessary, another air connection may be used.
The burner has three air connections, two of
which are sealed with blind flanges.
▷
Ensure undisturbed flow to the orifices in the
air and gas connections. We recommend that
a double nipple to ISO 65 with a length of at
least 5d be inserted into the connection.
Restrictors
▷
The appropriate restrictors are to be fitted in the
supply lines for fuel gas, combustion air and
motive air for the eductor to adjust the burner.
Central air connection for LPG operation
▷
The LPG version of the burner has an additional
central air lance.
▷
The gas lance must be cooled to prevent the
gas cracking and soot forming inside the burner.
▷
The connection is made with an Ermeto pipe.
▷
The purge air connection must be located in the
air supply line to the burner upstream of the air
control valve, for example at the inlet of the air
solenoid valve.
▷
Open the adjuster in the central air lance fully; on
the ECOMAX
®
1, the adjuster must be restricted
to 45° or 50%.
Purge air connections for electrode and
UV cell
▷
The electrode and the UV cell can be cooled
and purged with air.
▷
The air must be branched off upstream of the
air control valve, for example at the inlet of the
air solenoid valve.
▷
Connect the purge air to the purge air connection
of the gas flange next to the electrode.
