Viessmann VITODENS 100-W Installation And Service Instructions Manual page 33

Further details regarding the individual steps
r r
Commissioning, inspection, maintenance
(cont.)
2. Turn rotary selector "tr" for less
than 2 s fully clockwise and then back
into its control range on the right.
"SERV" and "A" appear on the dis-
play.
3. Select the required max. heating out-
put with rotary selector "tr".
Bars for the selected heating output
flash on the display.
A
■ Position 1 (1 bar) = lower heating
output.
■ Position 6 (5 bars) = upper heating
output.
4. Test selected heating output by
measuring the gas throughput.
°C
6 0
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