If service interval function is enabled and operating mode selector is set to Standby mode or
set to other mode from Standby mode, the screen will display the remaining days until next
service due.
The service interval reminder can be enabled and reset by a service professional.
Equipment combinations
Description
Electrothermal
actuator (for radiator
valves)
Electrothermal
actuator (for small
valves 2.5mm)
Electromotoric
actuator
*) The documents can be downloaded from http://siemens.com/bt/download.
Ordering
When ordering, specify both name and product number e.g. room temperature controller
RDJ100.
Order valves and actuators as separate items.
Mechanical design
The device consists of 3 parts:
Plastic housing with digital display containing the electronics, operating elements, and
built-in room temperature sensor
Baseplate (mounting base)
Battery compartment
The housing engages in the baseplate and snaps on. The baseplate carries the screw
terminals. There is a reset button on the rear of the device.
6
Siemens
Building Technologies
Product number
STA23..
STP23..
SFA21..
Datasheet
Data sheet *)
4884
4884
4863
A6V10954415_en--_e
2018-11-20