Samson 5476 manual 5.7Optimization, Functions of the heating circuit

Functions of the heating circuit

have been activated.

Refer to page 78 onwards for the wiring diagrams of the room panels.

Functions	WE	Configuration
Room sensor RF	OFF	FB13 = ON
Potentiometer input 1 to 2 kΩ	OFF	FB24 = OFF

5.7Optimization

This function requires the use of a room sensor. Depending on the building characteristics, the controller determines and adapts the required preheating time (maximum 6 hours) to ensure that the desired Room set point (rated room temperature) has been reached in the reference room when the time-of-use starts. During the preheating period, the controller heats with the max. flow temperature. This temperature is built up in steps of 10 °C. As soon as the Room set point has been reached, weather-compensated control is activated.

Depending on the room sensor, the controller switches off the heating system up to two hours before the time-of-use ends. The controller chooses the deactivation time such that the room temperature does not drop significantly below the desired value until the time-of-use ends. It two times-of-use are programmed for one day, the controller monitors the Reduced room set point in the time between these times-of-use. Outside the times-of-use, the controller monitors the Sus- tained temperature. Should the temperature fall below the Sustained temperature, the controller heats with the max. flow temperature until the measured room temperature exceeds the ad- justed value by 1 °C.

During the preheating period, DHW heating does not take place in systems with DHW circuits linked in the secondary side.

Note!

Direct sunshine can cause the room temperature to increase and thus result in the premature de- activation of the heating system.

Function	WE	Configuration
Optimization	OFF	FB0 = ON
Parameter	WE	Range of values
Room set point	20 °C	0 to 40 °C
Reduced room set point	17 °C	0 to 40 °C
Sustained temperature	15 °C	0 to 40 °C

46EB 5476 EN