Description Of Operation - elco VL 04.540 DP Notice D'emploi

Start-up
Control unit MPA22

Description of operation

st
1 1 stage valve
nd
2 2 stage valve
rd
3 3 stage valve
4 Burner motor M1
5 T1 ignition transformer
6 230V-50Hz output
10 F6 air pressure switch
11 MZ 770 cell
28
13 Pulse meter *
15 Y10 air servomotor
16 Display A connection
17 e-Bus connection *
18 Power regulator connection 4p.
19 Boiler connection panel
connection 7p.
* Option
07/2009 - Art. Nr. 4200 1023 3700A
Parallel to its control unit and fuel safety
functions, the MPA control unit also
provides power modulation for the
burner by controlling the air flap via an
electronic connection.
During commissioning, the setting
points are set by the values measured in
combustion analysis.
In this way, optimum combustion is
ensured over the entire burner power
curve.
A separate burner ignition load can be
defined using the P0 setting point.
The limit values of the regulation range
are set using the setting points "P1" and
"P9". In addition, other optional functions
can be activated such as, for example,
postventilation or waiting time.
The control unit is controlled by a
display.
Note:
For further information, see the enclosed
electrical circuit diagram.