Direct Heating - Elster ECOMAX 0C Technical Information

Project planning information > Air connection

6 .5 .2 Direct heating

Approx. 90 to 100 mbar air pressure should be present at the
eductor. Furthermore, the pressure losses due to pipework
and valves are to be taken into consideration.
For burner adjustment, we recommend using the differential
air pressure measuring kit DA 1 – see page 17 (Differential air
pressure measuring kit DA 1).
To ensure accurate measurement of the pressure differential,
the following boundary conditions for the design of the air
connection must be taken into account:
– A straight inlet section which is 3 to 5 times as long as the
nominal diameter of the connection must be provided up-
stream of the differential air pressure measuring kit DA 1.
– All valves and fittings should have the same nominal size
and nominal connection diameter.
– Use bends with the largest possible radii.
– The pressure loss of the measuring orifice is approx.
6 mbar.
ECOMAX · Edition 02.11
A quick opening, quick closing air valve or solenoid actuator
should be used.
Burner Air valve
Ecomax 0 VR 40..N
Ecomax 1 VR 50..N
Ecomax 2 VR 65..N
Ecomax 3
Ecomax 4
Ecomax 5
Ecomax 6
ECOMAX 0
ECOMAX 1
ECOMAX 2
Other types of control on request.
Butterfly valve/sole-
noid actuator
–
–
–
– BVHM 65/MB7NM3
– BVHM 80/MB7NM3
– BVHM 80/MB7NM3
BVHM 100/MB7NM3
ECOMAX 3
...
ECOMAX 6
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