Siemens Heating controllers

Siemens RVD120-A, S55370-C109 Controller, 3 programmed plant types, instructions in da, de, en, fi, fr, it, sv Control of district heat substations, space heating and d.h.w. heating. Optimized for low return temperatures in district heating networks...

Siemens RVS43.345/101 Datasheet

Siemens RRV934 Multicontroller RF-based multicontroller for precontrol of up to 2 room groups or control of ventilation plant with up to 3 stages Datasheet