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Make up air

Can someone tell me what turn on make up air in cooling and heating thanks
is there a control or sensor?


  • Jamie Hall
    Jamie Hall Member Posts: 23,428
    Way too many variables here. Makeup air for a boiler or furnace? Makeup air for a ducted heating and cooling system? For starters...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • pedmec
    pedmec Member Posts: 987
    make up air that our company installs is interlocked with the exhaust hood