Operating instructions

33
Activating the venting function
Weather-compensated control unit Constant temperature 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
.
Service menu
1. Press OK and å simultaneously for
approx. 4 s.
2.
Select "5" with Ú and confirm with
OK.
"ON" flashes.
3. Activate the venting function with OK.
"EL on" is shown constantly.
4. Ending venting function:
Press
ä
.
Filling the siphon with water
Multi boiler system:
Fill the siphon in the flue gas header with
water as well.
A
B
1.
Remove retaining clip A and siphon
B
.
2.
Fill siphon B with water.
3.
Fit siphon B and secure with retain-
ing clip
A
.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5772 909 GB
Service