I have a regular furnace without a HVAC setup. When it's summer we usually have the fan running constantly. The furnace fan then runs at about half the speed as it would when the heat is one.
Recently I was at a friends house with a similar furnace and thermostat. When he sets his thermostat to cooling mode it would once in a while kick on the furnace fan at full speed without igniting the burners, thus pulling in cooler air from the basement.
Would this be a feature from the furnace or thermostat? Do I have to wire the thermostat in a certain way?