Image is for illustration only and should not be relied upon Siemens RAA21 Room Thermostat

Siemens RAA21 Room Thermostat



£13.93
Ex VAT: £11.61
HCO Code: 23C07
Availability:  In Stock

The RAA21.. room thermostat has separate outputs for heating only and cooling only.
If the room temperature falls below the selected setpoint, the heating contact will close.
If the room temperature exceeds the selected setpoint, the cooling contact will close.

* 2-Position Control
* Volt-Free SPDT Contacts
* 6(2)A Contacts
* 3-30C Range
* Dimensions: 97x96x35.3mm HxWxD

Direct replacement for obsolete RAA20

 

 

 

 

 

 

 

 

 

 

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  • Hi
    It could be the thermostat or the actuator.  If you have several in the house you can try swapping them to see if the fault moves with the thermostat.

  • The RAA02 is obsolete. If it is an ordinary gas or oil boiler with wet radiators, then this RAA21 will be fine. If it is electrical heating, let us know and we will recommend something else suitable.
  • We would recommend the Siemens REV 24. It will connect to the same 2 wires http://www.heatingcontrolsonline.co.uk/siemens-rev24-hardwired-programmable-thermostat-p-541.html
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