Conventional heating and cooling (up to 2 stages) can be done with ecobee3 wiring diagrams.

There are wiring diagrams for the ecobee3 thermostat.

The ecobee3 Installation Guide contains these diagrams as well.Click here to download the complete ecobee3 Installation Guide.

The diagram shows the wiring connections for a heat pump system.Emergency wiring connections will connect to the ecobee3 W1 terminal.If there is more than one stage of aux heat, ecobee3 manages auxiliary heating through the W1 and W2.

Installation instructions for 2-wire heat only boiler or furnace system can be found in the following articles.

Monday to Friday from 8 to 11 and Saturday and Sunday from 9 to 9.

The store is open Saturday and Sunday from 9 a.m. to 9 pm.