HVAC zone control system

摘要: An HVAC system for a plurality of zones comprising an air handling unit including blower, heating stages and cooling stages. The is connected via ducts to each the zones, zone having outlet provided with two-position damper which either open or closed thermostat providing input signal microprocessor. microprocessor has outputs activating motors move dampers includes automatic mode operation in controls number are energized dependence on difference between therostats calling thermostats cooling.