NIBE FIGHTER 1250
Readjustment the default settings
If the required room temperature is not obtained, readjust-
ment may be necessary.
Cold weather conditions
- When the room temperature is too low, the “Curve co-
effi cient” value is increased in menu 2.1 by one incre-
ment.
- When the room temperature is too high, the “Curve
coeffi cient” value is decreased in menu 2.1 by one
increment.
Warm weather conditions
- If the room temperature is low, increase the heating
curve offset setting by one step.
- If the room temperature is high, reduce the “Heating
curve offset” setting by one step.
A
Heating settings
* A low temperature radiator system refers to a system
where the fl ow temperature needs to be 55 °C on the
coldest day.
** Floor heating can be dimensioned very differently.
Examples 2 and 3 above refer to a system where the
fl ow temperature needs to be approximately 35–40 °C
resp 45–50 °C on the coldest day.
London
Bristol
Plymouth
Birmingham
Liverpool
Manchester
Glasgow
Edinburgh
Aberdeen
Londonderry
Belfast
Dublin
Cork
Limerick
14 (7)
15 (7)
15 (7)
15 (8)
15 (7)
15 (7)
15 (8
15 (8)
Basic values for the automatic heating control
The values stated on the map apply for the “Curve slope”.
The fi rst value applies for low temperature* radiator sys-
tems. “Offset heating curve” is set to -2.
The value in brackets refers to fl oor heating systems** in-
stalled in concrete fl oor structures. When the system is in-
stalled in a timber fl oor structure you can use the number
before the brackets, but this value must be reduced by
two units. In these cases the “Offset heating curve” is set
to -1.
The map values are usually a good starting point and
concern an approximate room temperature of 20 °C. The
values can be adjusted later if necessary.
Examples of basic data selection:
1. House with low temperature* radiator systems
London = Area 15 (8). Set 15 on menu 2.1, and -2
on the knob “Offset heating curve”.
2. House with fl oor heating** installed in a
concrete fl oor structure
London = Area 15 (8). Set 8 on menu 2.1, and -2 on
the knob “Offset heating curve”.
3. House with fl oor heating** installed in a timber fl oor
structure
London = Area 15 (8). Set 13 (15-2=13) on menu 2.1
and -1 on the “Offset heating curve” knob.
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