Functions Of The Heating Circuit; Weather-Compensated Control - Samson TROVIS 5579 Mounting And Operating Instructions

5

Functions of the heating circuit

Which controller functions are available depends on the selected system code number (Anl).
5.1

Weather-compensated control

When weather-compensated control is used, the flow temperature is controlled according to
the outdoor temperature. The heating characteristic in the controller defines the flow temper-
ature set point as a function of the outdoor temperature (–> Fig. 5). The outdoor temperature
required for weather-compensated control can either be measured at an outdoor sensor or
received over the 0 to 10 V input or from a connected device bus.
°
t [ C]
VL
130
120
110
100
90
80
70
60
50
40
30
20
20
Fig. 5 · Gradient characteristics
Functions
Outdoor sensors AF1, 2
Outdoor temperature received
over 0 to 10 V input
If you wish to alternatively receive the outdoor temperature over the device bus, the follow-
ing additional configurations must be made:
Device bus
Receive value AF1
Receive value AF2
16 12 8 4 0 -4
WE
1
0
–20 °C
50 °C
0
0
0
3.2 2.9 2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
t
A
°
-8 -12 -16 -20 [ C]
Configuration
CO1, 2, 3 -> F02 - 1
CO5 -> F23 - 1
Lower transmission range / –30 to 100 °C
Upper transmission range / –30 to 100 °C
CO7 -> F01 - 1; device bus address
CO7 -> F07 - 1; register no.
CO7 -> F09 - 1; register no.
Functions of the heating circuit
t Flow temperature
VL
t A Outdoor temperature
69
EB 5579 EN