Boiler CD28i use Worcester RF receiver with Honeywell CM927

[Monkeynutz]

Hi,

I have Worcester CD28i combi boiler installed (fitted by previous owners circa 2003). There is a wireless RF Worcester programmable room thermostat also installed where the RF receiver/relay is a worcester component that fits into the boiler control panel.

All works fine, except after experiencing my first winter I wish to replace the RF controller with a 5/2 programmable room thermostat for greater flexibility and efficiency. I am looking at either Honeywell CM927 or Siemens REV24 (although this appears to be hard to source - discontinued?)

My Q is can i use the existing Worcester RF receiver/relay with either the CM927 or REV24 or will I have to fit the relay that comes with either of the new controllers?

Thanks Jon

 

[Ihavenojob]

The Worcester digistats were the same as Drayton ones,you may be able to use a Digistat +3 programmable stat with your Worcester receiver but the others you want will probably have to use their own receivers.