Filling The Siphon With Water; Designating Heating Circuits - Only For Weather-Compensated Control Units - Viessmann VITODENS 200-W Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
Activating the venting function
Weather-compensated control unit
Service menu
1. Press OK and å simultaneously for
approx. 4 s.
2. "Service functions"
3. "Venting"
Venting function is enabled.
4. Ending venting function:
Press OK or ä.

Filling the siphon with water

B
C
A
Designating heating circuits – only for weather-compensated
control units
In the delivered condition, the heating
circuits are designated "Heating circuit
1", "Heating circuit 2" and "Heating cir-
cuit 3" (if installed).
If the system user prefers, the heating
circuits can be designated differently to
suit the specific system.
12
Constant temperature control unit
Service menu
1. Press OK and å simultaneously for
approx. 4 s.
2. Select "5" and confirm with OK.
"On" flashes.
3. Enable the venting function with OK.
"EL on" is shown constantly.
4. Ending venting function:
Press ä.
1. Pull off cap A downwards.
2. Undo union nut B and pull off siphon
C downwards.
3. Fill siphon C with water and refit it.
Note
Never twist the supply hose during
assembly. Route the drain hose with-
out any bends and with a constant
fall.
4. Push on cap A from below.
To enter names for heating circuits:
Operating instructions
(cont.)