5 functions of the hea ting cir cuit 40, 1 weat her-com pen sa ted con trol 40, Cha rac te ris tic 40 – Samson 5476 User Manual
Page 40: Hea ting cha rac te ris tic 40, We at her-com pen sa ted con trol 40, Functions of the heating circuit, Weather-compensated control, 5functions of the heating circuit, 1 weather-compensated control
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 temperature
set point as a function of the outdoor temperature (–> Fig. 2). The outdoor temperature required
for weather-compensated control is measured at the outdoor sensor or received over a current
input.
Measured at the outdoor sensor
Function
WE
Configuration
Outdoor temperature – Current input
OFF
FB18 = OFF
Received over (0)4 to 20 mA current input
(a 50
W
resistor must be connect to terminals 7(+)
and GND (terminals ½) parallel to the current signal)
40
EB 5476 EN
Functions of the heating circuit
Fig. 2 · Gradient characteristics
t
VL
Flow temperature
t
A
Outdoor temperature