Nibe S735 - Setting the Heating Curve

SETTING THE VENTILATION
The ventilation must be set according to applicable stand-
ards. The fan speed is set in menu 7.1.4.1 - "Fan speed, ex-
haust air".
Even if ventilation is roughly set at installation it is important
that a ventilation adjustment is ordered and permitted.
NOTE
Order a ventilation adjustment to complete the
setting.
Ventilation capacity
0
0 20 40 60 10080 120 140 160
100
200
300
400
500
600
700
Tryck
(Pa)
Flöde
(l/s)
80%
60%
40%
50%
70%
90%
100%
Available pressure
Airflow
Fan rating
0
0 20 40 60 10080 120 140 160
120
20
80
40
100
160
140
60
180
Effekt
(W)
Flöde
(l/s)
80%
60%
40%
50%
70%
90%
100%
Output
Airflow
COMMISSIONING WITHOUT FAN
The heat pump can be run without recovery, as only an
electric boiler, to produce heat and hot water, for example
before the ventilation installation is complete.
1. Enter menu 4.1 - "Operating mode" and select "Add. heat
only"
2. Then enter menu 7.1.4.1 - "Fan speed, exhaust air" and
reduce the fan speed "Normal" to 0%.
NOTE
Select operating mode "Auto" or "Manual" when
the heat pump is to run on recovery again.
SETTING PUMP SPEED
The heat pump (GP1) is automatically controlled and sets
itself using the controls and based on the heating demand.
U
N
Capacity, heating medium pump
0
0 0,1 0,2 0,3 0,50,4
10
20
30
40
50
80
60
70
90
Tillgängligt tryck
(kPa)
Flöde
(l/s)
Pressure
Flow
Output, heating medium pump
0
0 0,1 0,2 0,3 0,50,4
10
20
30
40
50
60
70
80
Effekt
(W)
Flöde
(l/s)
Output
Flow
Setting the heating curve
In the menu "Curve, heating", you can see the heating curve
for your house. The task of the curve is to provide an uniform
indoor temperature, regardless of the outdoor temperature,
and thereby energy-efficient operation. Based on this curve,
the S735 determines the temperature of the water to the
climate system (the supply temperature) and thus the indoor
temperature.
CURVE COEFFICIENT
The slope of the heating curve indicates how many degrees
the supply temperature is to be increased/reduced when
the outdoor temperature drops/increases. A steeper slope
means a higher supply temperature at a certain outdoor
temperature.
31Chapter 6 | Commissioning and adjustingNIBE S735