Switch actuators RM 4 H, RM 8 H
5.2
Temperature-controlled domestic water heating
Task:
The domestic water temperature must be maintained at a minimum of 50 °C using a heating
element.
The water temperature is measured using a remote sensor (e.g. order no. 9070321).
The sensor is connected to a TA 4 S input and the temperature value is sent to the bus.
Channel C1 receives the domestic water temperature via a threshold object and switches the
heating element to relay output.
5.2.1
Devices
•
RM 4 H (4940212)
•
TA 4 S (RM 8 H (4930214))
•
100k feed temperature sensor (9070489)
5.2.2
Overview
5.2.3
Objects and links
No.
TA 4 S
No.
RM 4 H
Comment
Object name
Object name
21
Temperature actual value
of channel I3
0
DPT 9
threshold
The measured temperature is sent to
the threshold object.
