Viessmann GB-ND 055 E01 30/35 G25 Instrucciones De Montaje página 14

GB
Checking the CO
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06. Set the lower heating output:
Turn rotary selector "tr" fully
anti-clockwise, until the display
shows 1 bar for the lower heating
output.
07. Measure the CO
lower heating output.
The CO content must be between
2
0.3 and 0.9 % below the value of
the upper heating output.
08. ■ If the CO content is within the
2
indicated range, continue with
point 10.
■ If the CO content is not within
2
the indicated range, check the
flue gas/ventilation air system for
tightness; remedy any leaks.
09. Measure the CO
upper and lower heating output
again.
10. Shut down the boiler, remove the
flue gas analyser and close flue
gas test port A.
11. Turn rotary selector "rt" back to
its original position.
12. Fit the front panel and start the
boiler.
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