4-Point Characteristic - Samson TROVIS 5474 Mounting And Operating Instructions

8.1.2 4-point characteristic

The 4-point characteristic allows you to define your own heating characteristic.
It is defined by 4 points for the Outdoor temperature and the Flow temperature . The Boiler
set-back difference is predetermined for points P1 and P2 and for points P3 and P4 in the corre-
sponding parameter level, resulting in the dashed line in Fig. 6.
The Max. flow temperature and Min. flow temperature parameters mark the upper and lower lim-
its of the flow temperature.
t
[˚C]
VL
100
t
VLmax 90
80
70
60
50
40
P4
30
t
VLmin 20
10
20 15
Fig. 6 · 4-point characteristic
Functions
Type of characteristic
Type of characteristic for separate/
direct heating circuit*
P2
P3
10 5 0 –5 –10
WE
OFF
OFF
* Only in systems Anl 1 to 3 with Co5 -> Fb13 = ON
P1 to 4 Points 1 to 4
t Flow temperature
VL
t Outdoor temperature
A
P1
..min Min. flow temperature
..max Max. flow temperature
4-point characteristic
-------- Reduced 4-point characteristic
t
A
–15 –20 [˚C]
Configuration
Co5 -> Fb03 = ON, select: 1
Co2, Co3 -> Fb10 = ON, select: 1*
System-wide functions
51
EB 5474 EN