HVAC System and Method Using Exhaust Driven Air Transfer

A method for air conditioning a building, the method comprising:

• drawing unconditioned outside air at a first flow rate through a dedicated outdoor air system unit;
• conditioning the unconditioned outside air by the dedicated outdoor air system unit to conditioned air;
• supplying the conditioned air to a first room of the building, and
• exhausting the conditioned air at a second flow rate to an exterior of the building by a kitchen exhaust fan located in a second room of the building, the first and second rooms being in fluid communication with a common area of the building such that the conditioned air from the first room is drawn to the second room via the common area to supply conditioned air to the common area and the second room, the second flow rate being controlled by a sensor adjacent the kitchen exhaust fan,
• wherein, the first flow rate is equal to or greater than the second flow rate, the first flow rate being set based on the second flow rate.