Viessmann Vitodens 200, Service Instructions Manual

Page: 15 / 116

15
Initial start-up, inspection and maintenance
Further details regarding the individual steps
(cont.)
ă 5. Release the bottom part of
control unitĂ B and pivot down.
ă6. Unscrew protective coverĂ C and
rear casing lidĂ D .
ă 7. Turn potentiometerĂ E with a
screwdriver anticlockwise, until
the control pressure corresponds
to the required output in
accordance with the table below.
Please note:
Whilst checking the pressure,
wait approx. 5Ăminutes, until the
pressure has stabilised.
ă8. Remove the pressure gauge
fittings from test nipplesĂ A and
seal the nipples with the caps.
ă9. Assemble control unitĂ B , flip it
up and secure with screws.
10. Record the settings for max. output
on the type plate included with the
"Technical documentation". Affix
the type plate on the inside of the
front cover of the front panel.
Rated
output
*1
kW 11 15 20 25 30 35 40 44 45 50 55 60
Control
pressure
at rated
output
11
Ă
Ć
Ă
44ĂkW
15
Ă
Ć
Ă
60ĂkW
mbar
mbar
0.25
ćć
0.46
0.25
0.83
0.44
1.29
0.69
1.86
1.00
2.53
1.36
3.31
1.78
4.00
2.15
ćć
2.25
ćć
2.78
ćć
3.36
ćć
4.00
*1
Rated output relative to T
V
/T
R
75/60 º C, gasĂGĂ20/GĂ25 and 8.5
Ă
% CO
2
content.
5692Ă485
G
B
+ –