Hear

[Mroe67]

We have a 3120 RL 2019. When we put the heat on the furnace comes on but the A/C is on as well. I thought the dealer said one of the two units was a heat pump. But am wondering why if I only have the living room thermostat calling for heat, why would the heat pump come on along with the furnace.
The bedroom unit doesn’t seem to do anything in heat mode

[busterbrown]

If the thermostat is set to "fan: auto", the ac blower will turn on when the furnace is activated. This is normal operation. You can set the fan to "off" to prevent the AC blower from turning on. Like wise, selecting 'high or low' will keep the AC blower on at all times, even when the furnace is off. We use this setting for air circulation on the hot days. It helps distribute the "cool air" better.