Samson 5476 manual 5.1.2 4-pointcharacteristic, Functions of the heating circuit

Functions of the heating circuit

5.1.2 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, the Flow temperature and the Return flow temperature. The Set-back difference at points 2 and 3 indicates how much the flow temperature is reduced outside the times-of-use. The Max. flow temperature and Min. flow temperature pa- rameters mark the upper and lower limits of the flow temperature.

P1 to P4	Points 1 to 4
tVL	Flow temperature
tA	Outdoor temperature
... min	Minimum flow temperature
... max	Maximum flow temperature
-----	Set-back characteristic
Fig. 3 · 4-point characteristic

Function	WE				Configuration
Characteristic	OFF				FB19 = ON
Parameters	WE		WE*		Range of values
Outdoor temperature, point 1	–15 °C		–15 °C		–30 to	20 °C
Outdoor temperature, point 2	–5 °C		–5 °C
Outdoor temperature, point 3	5	°C	5	°C
Outdoor temperature, point 4	15	°C	15	°C
Flow temperature, point 1	70 °C		50 °C		20 to 130 °C
Flow temperature, point 2	55	°C	40	°C
Flow temperature, point 3	40	°C	35	°C
Flow temperature, point 4	25	°C	20	°C
Return flow temperature, point 1	65	°C	–		20 to	90 °C
Return flow temperature, point 2	50	°C	–
Return flow temperature, point 3	35	°C	–
Return flow temperature, point 4	20	°C	–
Set-back difference, points 2, 3	20	°C	5	°C	0 to	50 °C
Max. flow temperature	90	°C	50	°C	20 to 130 °C

42EB 5476 EN