Setting Of The Fixed High Limit (If Required) - Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual

Setting of the Fixed High Limit
Settings on the control unit
The setting for the fixed high limit and
the other settings are dependent on the
safety equipment installed in
accordance with applicable codes.
3.
1.
2.
Fixed high limit
Adjustable high limit
Coding for the electronic maximum
temperature limiter of Vitotronic 100;
set code 06 to the temperature as
shown or less
(if required)
A
Non-condensing boiler
(VD2/VD2A) °C / °F
110 / 230 99 / 210
100 / 212 95 / 203
93 / 200 87 / 188
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
Vitocrossal 200, CM2
of 99°C / 210°F
No adjustment
¨ 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.
Condensing boiler Condensing boiler
(CT3) °C / °F (CM2) °C / °F
99 / 210
95 / 203
87 / 188
Installation
99 / 210
95 / 203
88 / 190
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