The FP715 Si can be configured by the installer at time of installation to provide 7 day, 24 hour, or 5 day/2 day operation and to provide either 2 ON/OFF"s or 3 ON/OFF"s per day, allowing the time control to be tailored to match the specific requirement of the consumer. The terminals used will depend on the design of plumbing system that it is controlling. Yours is commensurate with very many in the UK. Some do have a connection to terminal 1 others, like yours don't need it. None, (with a few very rare exceptions, normally old installations) have a connection to terminal 2. One of the key features of the FP715Si is its multiple switching options. This thermostat can control both the heating and hot water systems, providing convenience and flexibility. This allows users to manage their overall energy consumption effectively.

Danfoss FP715SI 7 Day 24 Hour Or 5/2 Day Programmer

If however as likely it switches 230 volt, then you can fit a system which can link to TRV's in the future allowing you to control each room independently. the Motorised Valves (HPA2) or your Circulating pump - its not always the timers fault but your electrician will be able to diagnose the fault for you before you buy.HOWEVER. We can offer you an alternative model that WILL FIT the FP715SIwithout an Electrician and without paying through the NOSE. This is what this listing is Selling - please get in touch if you are unsure I apologise that this has turned into a bit of an essay, but any expert help you could pass on to me would be greatly appreciated.

Danfoss FP715SI 2 channel Programmer 087N789800 Danfoss FP715SI 2 channel Programmer 087N789800

Although your likely not considering swapping all TRV heads to linked heads now, before selecting a replacement you need to consider what you may want to do in the future. Furthermore, the FP715Si is equipped with temperature compensation technology. This means that it can automatically adapt to changes in room temperature, ensuring consistent and comfortable heating throughout the day. So I'm not sure if the programmer is just duff, or if there is a certain combination of events which is causing the programmer to trip out. Thanks for your considered responses. I have the manual but when I follow the instructions to reset the date and time, it just doesn't work! So, I have just come to the conclusion that updating it makes sense.There is a 230 volt and 24 volt model it seems, this is the instructions. https://www.plumbase.co.uk/link/1/h002877_20563_t.pdf