Honeywell RTH2510 Guía De Instalación Rápida página 12

Quick Installation Guide
7
Set Heat Pump Reversing Valve
Set jumper JP2, on the back of the thermostat, if you
have a heat pump.
O Leave the jumper in this factory-set position if
you have connected O wire to the O/B terminal.
B Place the jumper to this position if you have
connected B wire to the O/B terminal.
Incorrect jumper setting: The heat pump operation will
be reversed, i.e., it will cool in Heat mode and will heat in
Cool mode.
69-2421ES—03 10
JP2