Technical data

39
Installation – Vitotronic 100, GC1
Setting of the fixed high limit (if required)
Settings on the control unit
The setting for the fixed high limit and
the other settings are dependent in the
safety equipment installed in
accordance with applicable codes.
The fixed high limit is supplied with a
factory setting of 110°C / 230°F.
- On Vitotronic 100, GC1 for
Vitorond 200, VD2 of
110°C / 230°F
Adjustment to 99°C / 210°F
- On Vitotronic 100, GC1 for
Vitocrossal 300, CT3 of
99°C / 210°F
- No adjustment
¨ Disconnect power to control and
burner!
1. Unclip the fuse box and swing up-
wards.
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.
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
5351 340 v1.4
3.
1.
2.
A
If adjusted to 99°C / 210°F, do not
set the adjustable high limit above
75°C / 167°F.
WARNING