Viessmann VITOPEND 200, Installation And Service Instructions For Contractors

Page: 39 / 132

6. Select the upper rated output.
Constant temperature control
unit:
K + d press simultaneously:
"
1 " is shown.
a press:
"
2 " is shown.
Weather-compensated control
unit:
K + d press simultaneously:
"
Relay test " and then
" Base load " is shown.
a press:
"
Full load " is shown.
7. Check the CO
2
or O
2
and CO con-
tent. Enter actual values into the
service report.
8. Press d .
Operation with the upper rated out-
put is terminated.
Maintain limits to EN 483 and EN 297
(CO content < 1000 ppm).
If the actual value falls outside the
permissible range, check the follow-
ing:
&
Balanced flue system for soundness
(see page 30)
&
Static and supply pressure (see
page 25)
&
Nozzle pressure (see page 27)
Further details regarding the individual steps
(cont.)
39
Commissioning, inspection, maintenance
5592
817
GB
Service