Be a Thermostat to a Boiler

[michel]

I have a water boiler that require a 24V Thermostat to operate.

I was wondering if I could use the Relay of a T10 to act as a “fake” thermostat, basically telling the Boiler to heat or sleep.

This is the part of the boiler doc that mention the thermostat wiring. How should I do it with a T10 Relay or a BB DO?

[maurice]

The boiler is just looking for a dry contact on a call for heat, that could be a thermostat or your T3 controller, the boiler wont know the difference. Wire one of the relay outputs of the T3 to the boiler thermostat terminals and you are now in charge of the boiler with your program.

[michel]

Will test that, thanks