Fan Setting - Observer TSTAT0101SC Owner's Manual

Off: Heating and cooling systems are off
Auto: Observer Control automatically selects heating or
cooling to maintain your comfort during transitional heating and
cooling seasons
Heat: Observer Control operates only the heating system
Cool: Observer Control operates only the cooling system
Emergency Heat: Only electric heat will be used for heating
(only for heat pump with auxiliary heat)

Fan Setting

The Observer Control allows you to adjust the fan speed during
continuous fan operation.
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