50
Rated heating output
at T
F
/T
R
50/30 °C
kW
12.9/19.3
16.1/23.6
19.3/28.9
at T
F
/T
R
80/60 °C
kW
12/18
15/22
18/27
Static burner pressure ap-
prox.
■
Min.
mbar
7.5
18
10
17.5
10
20.5
kPa
0.75
1.8
1.0
1.75
1.0
2.05
■
Max.
mbar
10.5
22
13
22
12.5
23.5
kPa
1.05
2.2
1.3
2.2
1.25
2.35
CO
2
content approx.
■
Min.
%
12.2
12.2
12.2
12.2
12.2
12.2
■
Max.
%
13.2
13.2
13.2
13.2
13.2
13.2
Nozzle gap "a"
mm
3.0
+0.2/-0.3
1.5
+0.2/-0.3
1.5
+0.2/-0.3
Note
Due to nozzle tolerances and varying oil characteris-
tics, the oil pressure may vary from the specified val-
ues.
!
Please note
An incorrectly adjusted nozzle gap "a" can result
in irregular operation of the burner and even a
fault shutdown.
Always
maintain the stated dimension and
check it in accordance with the details on
page 46.
Adjusting the oil pressure and checking the vacuum
Fig. 47
Suntec oil pump, type ATE2V
0
1.
Insert the pressure gauge (measuring range 0
–
25 bar (0
–
2.5 MPa)) into test port "P"
A
and the
vacuum gauge (measuring range 0
–
1 bar 0
–
0.1 MPa)) into test port "V"
B
.
Note
Only seal in the pressure and vacuum gauges with
copper or aluminium gaskets or with O-rings. Do
not use sealing tape.
0
2.
Start the boiler.
0
3.
Set burner stage 1 (see page 50).
0
4.
Where the vacuum measures higher than 0.35 bar
(35 kPa), check the filter for contamination and
check the pipe route.
0
5.
If required, adjust the oil pressure for stage 1 at
pressure adjusting screw
C
of the oil pump (for
standard values, see page 49).
0
6.
Test to check the actual emission values after
adjusting the oil pressure.
0
7.
Set burner stage 2 (see page 50).
0
8.
If required, adjust the oil pressure for stage 2 at
pressure adjusting screw
D
of the oil pump.
0
9.
Test to check the actual emission values after
adjusting the oil pressure.
10.
After testing, press
d
.
Selecting burner stage 1 or 2:
1.
Press
OK
and
å
simultaneously for approx. 4 s.
2. "Actuator test"
Commissioning, inspection, maintenance
Adjusting the standard burner settings
(cont.)
6136330
