: Advanced Installation and Configuration Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
5
Heat Pump With Auxiliary Heat
For a traditional heat pump, Y1 is the compressor and O/B is the reversing valve. During the startup process, the O/B should be configured to act as an
O terminal with Bryant equipment, since the equipment defaults to heating and needs the reversing valve to be energized on a cooling call. W1 is used
for the auxiliary heat – typically, electric resistance.
A200460
Boiler with Fan Coil
The ecobee thermostat can control two pieces of equipment where each has its own transformer, such as a fan coil with a boiler. Both Rc and Rh are
needed in this application.
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