It seems the Drayton Wiser TRV head is about the best, with algorithms to work out how long it takes to heat a room without over shooting, and the base has the option to work with OpenTherm with an add on module. Since I use oil OpenTherm does not interest me. The FP715 Si two-channel full programmer has separate heating and hot water outputs operating on completely independent time bases for maximum flexibility.

Danfoss Heatplan 2-Port Pack Fp715 Si 22mm 087N850040 Danfoss Heatplan 2-Port Pack Fp715 Si 22mm 087N850040

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. 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 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 The Danfoss FP720 (replacing the FP715Si) two-channel full programmer has separate heating and hot water outputs operating on completely independent time bases for maximum flexibility. I guess I will just plump for the 2 channel controller that I like best and hire a sparky to install it (I know my limitations).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. Installation is made easy as it fits industry standard wall plates, so no rewiring is required. Small and compact in size but with a quality, sharp display, the Danfoss FP720 is really easy to use. The soap dispenser arrived on the date stated but was slightly defective. I phoned the local supplier and it was replaced the following working day. Excellent service.

Fix and troubleshooting | Danfoss Fix and troubleshooting | Danfoss

The FP715Si features a user-friendly interface and a clear digital display, making it simple to program and operate. With its intuitive navigation, users can easily set up specific heating schedules and temperature levels for different times of the day. My advice: Find an electrician who enjoys heating controls and let him/her select the product that will do the job. Otherwise you’ll buy the wrong thing and waste your money. Additional features such as service interval timer, convenient user overrides, built-in ready-to-use programmes, a day programme copy facility as well as a stylish, compact design and easy to read display make the FP715 Si the simple answer to all heating and hot water requirements. The FP715 Si two-channel full programmer has separate Heating and Hot Water outputs operating on completely independent time bases for maximum flexibility.I got it wrong, so trying to stop you making same mistake, I selected Energenie as was told they worked with Nest, but that is not the case. There is a guide here which also says Energenie works with Nest, seems they did until Google took them over. At the point of installation, you can choose to have either a 7-day, 24 hour, or 5 day/2-day operation. You can then set 2 or 3 on/off points for each day, enabling you to make your central heating work to your schedule. Additionally, the programmer can be set for either ‘pumped’ or ‘gravity’ hot water. I was hoping to be able to do this myself, as I like to learn new skills, but it sounds like this would be a step outside my comfort zone As it works with just one thing on at once in my case, is it possible to bridge the wires for the Central Heating so that it is in effect on all the time but could be left in the off position?

Danfoss FP720 2-Channel Programmer | 087N7882 | Cli-Mate Danfoss FP720 2-Channel Programmer | 087N7882 | Cli-Mate

Discovered during the night that the central heating was still on despite the programmer indicator light being off. Turned the thermostat right down but heating stayed on. Time for a new programmer. But the Hive is much simpler and cheaper, no option for Opentherm, and no cleaver algorithms, and the base stops taking a demand for heat after 22ºC so the base unit really designed to be in a room normally kept cool, like the hall. Probably it would need connecting to the wiring centre, not to the controller as you have with the TP9000. An additional range of accessories allow the FP715 Si to be used in other upgrade situations where the unit being replaced is larger than the new unit and a decoration scar would normally have been left.

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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. 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. The wallplate used follows the industry standard pattern, as used by many of the other time control manufacturers. This allows for direct replacement often without the need for re-wiring. The Danfoss FP715Si is a thermostat that offers precise temperature control for residential heating systems. Designed with functionality in mind, this thermostat allows users to easily adjust and maintain their desired indoor temperature.

DANFOSS FP715SI USER MANUAL Pdf Download | ManualsLib

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. THIS IS THE FIRST TIME I HAVE USED MYTUB BUT IT CERTAINLY WILL NOT BE THE LAST. THE SERVICE WAS PROMPT AND THE VALUE WAS AMAZING, EVEN MY PLUMBER COULD NOT OBTAIN THE GOODS AT THE PRICE I PAID.It seems to have been doing it more often recently so I figured I'd try moving it out of the airing cupboard incase it was the heat affecting it. I drilled a hole in the wall and mounted it in more or less the same place on the other side (so now in the landing). 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. 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. In terms of installation, the FP715Si offers flexibility. It can be hardwired or configured for battery operation, depending on the user's preferences and needs. This ensures compatibility with a wide range of heating systems.