Submittal Sheet for Fresh Air Ventilation Control (FAVC). Part No. 602600100. The Fresh Air Ventilation Control™ (FAVC) which is part of the Field Controls Healthy Home System™ product line interactively works with residential HVAC system thermostat, in conjunction with the central fan air handler system to periodically introduce controlled amounts of fresh air into the home. The FAVC is designed to provide fresh air ventilation all year long keeping energy conservation, indoor air quality and comfort in mind.English.