Radiator thermostat (1st generation)

Warm and cozy when you're at home. Turned down to save energy when no one is there. The radiator thermostat regulates the room temperature according to your needs.

  • Regulates the heating down during ventilation
  • Suitable for all commercially available valves
  • Easy operation
  • Easy installation without interfering with the heating system
  • Easy to install, set up and control
  • Also works fully locally: The local SmartHome

Prerequisites

  • SmartHome central

Box contents

  • Radiator thermostat
  • Adapter set Danfoss (RAV, RA, RAVL)
  • Support ring
  • Batteries 1.5 V LR06 / Mignon / AA (3x)
  • User instructions

Technical data

Device name RST
Supply voltage 4.5V
Batteries 3 x LR6 (Mignon/AA)
Battery life Up to 2 years
Radio frequency 868.3 MHz
Recipient class SRD Class2
Protection class IP20
How it works Type 1
Connection M30 x 1.5mm
Display LCD
Ambient temperature +0°C to +55°C
Dimensions 67 x 75 x 107 mm (WxHxD)
Weight 210g

Installation and commissioning

1. 64-rst-demontage-transp-pngDismantling the mechanical thermostat head The radiator thermostat can be mounted on all common heating valves. There is no need to drain water or intervene in the heating system. If there is noticeable damage to the existing thermostat, valve or heating pipes, please consult a specialist. How to remove the old mechanical thermostat head:
  • Turn the thermostat head to the left as far as the end stop (A)
  • Loosen the fastening of the thermostatic head (B)
  • Remove the thermostat head from the valve (C)
2. Inserting the batteries

Remove the battery compartment cover (E) and insert the batteries into the device. Make sure the polarity is correct.

After inserting the batteries, the control pin of the actuator moves all the way back to make installation easier. During this time the display shows “A1”. If the control pin is fully retracted, “A2” appears. The radiator thermostat can now be mounted on the heating valve.

By pressing a button - or at the latest three minutes after inserting the batteries - the radiator thermostat begins self-adjustment. To do this, the valve is opened and closed to find the end positions and determine the entire control range. “A3” appears in the display. This process can take up to three minutes.

If end positions cannot be found, e.g. B. because the radiator thermostat is not installed, the process is aborted. “F2” appears in the display. You can start the self-adjustment again by pressing the control button.

The radiator thermostat is only fully functional after a successful adjustment.

3. Mounting the radiator thermostat

The radiator thermostat fits all standard valves with an M30 x 1.5 mm connection thread.

You need adapter pieces for certain heating valves. The device comes with adapter pieces for valves from Danfoss (RAV, RA, RAVL).

Before installation, please check whether the adapter pieces provided are compatible with your heating valves.

Set the SmartHome radiator thermostat onto the heating valve and secure it with the union nut. It is sufficient to tighten the union nut hand-tight.
4. Include device
  • Start the SmartHome app orSign in.
  • Now bind the device via . Alternatively, you can search for and integrate the device using the device selection.

Functional check

  1. After inserting the batteries with the correct polarity, either a symbol or the target temperature appears in the display.

  2. If nothing or F4 is shown in the display, the batteries are empty or almost discharged and must be replaced.

  3. A red flashing LED with F2 displayed at the same time signals that the distance between the control pin and the valve is too large. Check that the screw connection is tight.

  4. F1 in the display means that the valve is too stiff or the valve drive is blocked. In this case, check the valve and the adapter.

Symbols

In addition to the desired target temperature, the status symbols are also shown in the display. They show the current situation of the radiator thermostat.


Symbol Meaning
Indicates that the batteries are exhausted. Please change the batteries immediately.
Indicates the quality of radio reception. A constant glow indicates good radio reception.
The symbol flashes when radio transmission is weak.

Check interference (e.g. microwave, cordless telephones) and structural conditions on site.
Indicates activation of frost protection.
Displays an open window. It appears due to a coupled, open window contact or when there is a sharp drop in temperature (e.g. open window).
Displays the activated operating mode. In manual operating mode time-controlled scenarios, such as B. Lowering the room temperature when absent, ignored. The room temperature is instead set to the regulated by the value shown in the display.
To make assembly easier, the control pin is retracted completely.
The control pin has retracted completely. The radiator thermostat can now be installed.
The control range is determined and self-adjustment takes place for the full range of functions.

Error messages

The valve is too stiff or the valve drive is blocked.
Check the valve.
Valve drive not installed or adjustment range too large.
Check that the screw connection is tight.
Setting range too short.
Check the valve and adapter. If necessary, replace the batteries.
Batteries are almost completely discharged. Valve control is no longer possible. Switching to emergency mode.
Replace the batteries immediately.

Battery replacement

The actual battery change:

  • Remove the battery compartment cover (E) and take out the old batteries.
  • Insert the new batteries (type AA) into the device. Pay attention to the correct polarity.

Adjust the radiator thermostat again:

  • After inserting the batteries, the control pin of the actuator moves all the way back to make installation easier. During this time the display shows “A1”.
  • If the control pin is fully retracted, “A2” appears. The radiator thermostat can now be mounted on the heating valve.
  • By pressing a button, or no later than three minutes after inserting the batteries, the radiator thermostat begins self-adjustment. To do this, the valve is opened and closed to find the end positions and determine the entire control range. “A3” appears in the display. This process can take up to three minutes.
  • If no end positions can be found, e.g. B. because the radiator thermostat is not installed, the process is aborted. “F2” appears in the display. You can start the self-adjustment again by pressing the control button.

Radiator adapter

Before installation, please check whether the adapter pieces provided are compatible with your heating valves.


Manufacturer / Type Adapter
Heimeier, MNG, Junkers, Landis&Gyr “Duodyr”, Honeywell-Braukmann, Oventrop, Schlösser, Comap, Simplex, Valf Sanayii, Mertik-Maxitrol, Watts, Wingenroth (Wiroflex), R.B.M., Tiemme, Jaga, Siemens, Idmar (all with thread M 30 x 1.5) no adapter required
Danfoss RA (20 mm or 23 mm with 4 notches)
Danfoss RAV (34 mm with 4 notches)
Danfoss RAVL 25.5 mm with 4 notches)
is included
Herz, Comap, Markaryds, TA, SAM, Slovarm, Remagg
(all with thread M 28 x 1.5)
available separately
Oventrop, Rotex
(all with thread M 30 x 1.0)
available separately
Ista
(with thread M 32 x 1.0)
available separately
Rossweiner
(with thread M 33 x 2.0)
available separately
Ondal
(with thread M 38 x 1.5)
available separately
Orkli (M 28 x 1.0), Gampper (27 mm with 12 notches), Polytronic (M 34 y 1.5), Giacomini (approx. 22.6 mm), VEB Mertik (M 33 x 2, 0), Kosmia (M 28 x 1.0), Meges (M 38 x 1.5), BRV (M 30 x 1.5), Oventrop "maxi/mini" (M 40 x 15.5), Valvex ( M 30 x 1.5), Zentra (M 40 x 1.0), Fratelli Pettinaroli (M 28 x 1.5), Armal (M 24 x 1.5), Rotex (approx. 25.88 mm plastic)< /td> available separately

Room climate control

Room Climate Control

Reset

Factory Reset Devices

Downloads

User instructions