Danfoss TP9000MA-Si + TS2 Sensor Replacement

ian56

We have an Ideal Logic 15 boiler with a single zone S Plan heating system controlled by a Danfoss TP9000MA-Si with a wired TS remote sensor (which is not ideally situated and not easily relocated).
We would like to replace this with a Tado kit that would include a non-wired thermostat.
Note: As well as connections from terminals 3 & 4 on the controller (for DHW ON & CH ON respectively and from terminals 5 & 6 for the remote TS 2 sensor, the current wiring also includes a wire from terminal 1 (DHW OFF) to a switched live connection in the boiler which is linked to an outside sensor.
What Tado kit would we need?

policywonk

Your boiler seems to be one which is driven with on-off switched controls, not digital modulation, which makes things simple. Presumably that S plan system relates to two motorised valves, one for the HW side, one for CH.

Assuming it is a V3 system, to replace what you have, basically you would need a kit with:

• One Tado internet bridge
• One Tado wireless receiver
• One Tado wireless sensor
  
  The wireless receiver should easily be fitted in the same location as the TP9000 base station, with the Wireless receiver configured into R01 (RELAY) mode and the following wiring switch, old to new:
• N(eutral) to Neutral
• L(ive) to Live, to CH COM and to HW COM
• PIN 1 (DHW OFF) to HW OFF
• PIN2 (HTG OFF) to CH OFF
• PIN 3 (DHW ON) to HW ON
• PIN 5 (HTG ON) to CH ON

Follow the instructions as you install the parts, and it should be replaced within an hour. Dont forget to kill power before you remove the faceplate. Follow instructions in the App. Give it the exact model of the boiler and your existing thermostat. Shouldnt be difficult.

ian56

Thanks for your comprehensive answer.