Nibe F1255 Installation Manual page 37

BASIC VALUES FOR THE AUTOMATIC
HEATING CONTROL
The values stated on the map apply for the "heating
curve" in menu 1.9.1
• The first value applies to low temperature radiator
1
systems . "temperature" (offset heating curve) in
menu 1.1 must be set to -2.
• The value in brackets refers to underfloor heating
2
systems installed in concrete floor structures.
• When the system is installed in a timber floor structure
you can use the number before the brackets, but this
value must be reduced by two units. "temperature"
(offset heating curve) in menu 1.1, set in these cases
to -1.
Caution
The map's values are usually a good starting
point and are intended to produce a room
temperature of approximately 20 °C. The values
can be adjusted later if necessary.
Examples of basic values selection:
• House with low temperature radiator system
London = Area 15 (8).
Set 15 in menu 1.9.1, "heating curve" and -2 in menu
1.1 "temperature" (offset of heating curve).
• House with underfloor heating installed in a concrete
floor structure
London = Area 15 (8).
Set 8 in menu 1.9.1, "heating curve" and -2 in menu
1.1 "temperature" (offset of heating curve).
• House with underfloor heating installed in a timber
floor structure
London = Area 15 (8).
Set 13 (see point three in the list above) in menu 1.9.1,
"heating curve" and -1 in menu 1.1 "temperature" (off-
set of heating curve).
Caution
An increase in the room temperature can be
slowed by the thermostats for the radiators or
under floor heating. Therefore, open the ther-
mostat valves fully, except in those rooms
where a cooler temperature is required, e.g.
bedrooms.
1 A low-temperature radiator system refers to a system where the supply temperature needs to be 55 °C on the coldest day.
2 Under floor heating can be dimensioned very differently. The above example refers to a system where the supply temperature needs to
be approximately 35 – 40 °C or 45 – 50 °C on the coldest day.
NIBE F1255
Aberdeen
Edinburgh
Glasgow
15 (7)
Londonderry
15 (8)
Belfast
Liverpool
Dublin
Limerick
Cork
Plymouth
Chapter 6 | Commissioning and adjusting
15 (8)
15 (7)
14 (7)
15 (7)
15 (7)
Manchester
Birmingham
London
15 (8)
Bristol
37