TC-907

dvir · ‎2022-09-06

Hello,

I have a case of a TC900 unit that has an analog cold water valve (proportional) and a digital hot water valve (On / Off)

Which model of TC-907 series should I order?

And are there special settings for this?

Thank you very much

DavidChild · ‎2022-09-07

Follow this for the analogue output impedance:

May be best to go for a coil impedance of 1000 / 1500 ohms. Use 1 first, test it.

These have been used in the past in the UK:

IO-RM1-12DC SINGLE RELAY MODULE 12VDC

DavidChild · ‎2022-09-06

Hi

They all look to be modulating for both heating and cooling.

You could you a 12v dc relay with high impedance coil for the heating.

dvir · ‎2022-09-06

Hi, ok, thank you very much, I understood that there are differences between analog and digital... so you can use
TC907-3A4DPMSAB

And add a 12v dc relay to the output of the faucet?

Do you have a model that you recommend?

Thank you very much

DavidChild · ‎2022-09-07

Follow this for the analogue output impedance:

May be best to go for a coil impedance of 1000 / 1500 ohms. Use 1 first, test it.

These have been used in the past in the UK:

IO-RM1-12DC SINGLE RELAY MODULE 12VDC