Weather-Dependent Setpoint Shift - Siemens RWF40 Series User Manual

5.5 Weather-dependent setpoint shift

Parallel displacement of
the heating curve
Landis & Staefa Division
The RWF40... can be configured in such a way that if a Landis & Staefa Ni1000 outside
sensor (e.g. QAC22) is connected, a weather-dependent setpoint shift is implemented.
The minimum and maximum setpoint values can be set by the lower setpoint limit
«SPL» and the upper setpoint limit «SPH». Parameter «P» can be used to apply a
parallel displacement to the heating curve.
Each RWF40... must have its own separate outside sensor connected (no
parallel connection)!
Chapter 7 «Parameter settings»
160
140
120
100
SPH
80
60
SPL
40
20
0
CC1B7865E
5. Operating modes
Outside temperature (°C)
February 10, 2000
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
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