Small and compact in size but with a quality, sharp display, the Danfoss FP720 is really easy to use. None, (with a few very rare exceptions, normally old installations) have a connection to terminal 2. 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.

replacing a danfoss fp715 with a fp720 - DIYnot replacing a danfoss fp715 with a fp720 - DIYnot

This thermostat can control both the heating and hot water systems, providing convenience and flexibility. Occasionally in Winter the programmer would 'crash' - the screen would go blank and both red lights would remain on.Without spending a fortune and only needing very basic functions as it just needs CH left on 24/7 or Off altogether in Winter. Adjust the desired temperature using the temperature arrows and the thermostat will remain at this temperature until the next scheduled program change. Assuming that the wiring of a new programmer is still the same is it a DIY job for someone with basic skills but definitely no knowledge of electrics? I currently have installed a Danfoss FP715Si (TP9000) 2-channel CH/HW programmer, but the factory-set clock is entirely wrong and it is just getting old.

Danfoss FP715Si (TP9000) 2-channel CH/HW - DIYnot Replacing a Danfoss FP715Si (TP9000) 2-channel CH/HW - DIYnot

Overall, the Danfoss FP715Si is a reliable and efficient thermostat that offers precise temperature control and energy management. Relieved to see that this programmer is still available but thanks to coronavirus getting a tradesman to fit one could be a problem as we are in isolation due to age. The Drayton LP722 would be a similar unit to the Danfoss that you have, it uses the industry standard backplate and has the same connections.At the point of installation, you can choose to have either a 7-day, 24 hour, or 5 day/2-day operation.

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

If there are no 2-channel CH/HW programmers/controllers that would fit the existing backplate, are there any new controllers where the backplate can be replaced and the existing wiring could simply be rewired (copied) over to on a like-for-like basis? Find links below to our Fitters Notes for refrigeration, support portals for Cooling and Industrial wholesalers and installers, as well as service videos for our Drives, Heating, High Pressure Pumps and Sensing Solutions product portfolios. 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. I would think the Hive or Drayton Wiser system would likely suit, both use same back plates, but the big question is what voltage is now used? The wallplate used follows the industry standard pattern, as used by many of the other time control manufacturers.

Or move wire at 4 (CH ON) to CH OFF terminal which operates the CH system with CH in the off position. 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. That's an industry standard backplate, so you don't necessarily have to have another Danfoss programmer, unless you want to. 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. My advice: Find an electrician who enjoys heating controls and let him/her select the product that will do the job.