Technical data

Installation
23
Adjustment of the fixed high limit (if required)
The fixed high limit is supplied with a factory setting of 110°C / 230°F.
Adjustment to 99°C / 210°F
¨ Disconnect power to control
and burner!
1. Unclip the fuse box and swing
upwards.
2. Turn the slotted screw on the
rear of the fixed high limit until
the slot points to 99°C / 210°F
(once adjusted, the fixed high limit
cannot be reset to 110°C/ 230°F).
3. Re-fit the fuse box.
Please note:
Adjustment is required for the
Vitocrossal 300.
See Service Instructions
for Vitocrossal 300.
Non-condensing boiler
(VD2/VD2A) °C / °F
Condensing boiler
(CT3) °C / °F
Condensing boiler
(CM2) °C / °F
Fixed high limit 110 / 230 99 / 210 99 / 210 99 / 210
Adjustable high limit 100 / 212 95 / 203 95 / 203 95 / 203
Coding for the electronic maximum
temperature limiter of Vitotronic 100;
set code 06 to the temperature as
shown or less
93 / 200 87 / 188 87 / 188 88 / 190
5285 941 v.1.5
3.
1.
2.
A
If adjusted to 99°C / 210°F, do
not set the adjustable high limit
above 75°C / 167°F.
WARNING