[scottz]

Sounds like there are several different set ups. Mine has the heat pump option on the rear (living area) AC only. When I toggle through the modes this is what I see:

Rear (living) unit
Off
Fan control (Auto, High, Low)
Cool (set temperature)
Furnace (set temperature)
Heat Pump (set temperature)
Off

Front (bedroom) unit
Off
Fan control (Auto, High, Low)
Cool (set temperature)
Furnace (set temperature)
Off

Here is another question. If I select furnace on the front thermostat, how is the heated air directed to the bedroom and not to the living area? Are there zone controls in the ducting (somehow I doubt this)? I have not actually tested it; maybe if either thermostat calls for furnace heat, it comes out everywhere.

PS: I found out by accident how to get the thermostat to display room temperature. It must be in the "off" mode, hit both up and down arrow at the same time. Seems odd you have to turn the unit off to find out room temperature, but that is how mine works.