Dual Room Damper Control - MultiZone Motorized Dampers - Control 2 Rooms With 1 System A Damper Control Package is used to control the temperature in two rooms. Only one room per cycle will be controlled using only one Air Handler. There are two motorized dampers connected to the supply air and two motorized dampers connected to the return air. One set of dampers will be connected to Room 1 (Supply and Return) which will be configured as the “OPEN” state and one set of dampers will be connected to Room 2 (Supply and Return) which will be configured as the "CLOSED" state. When Room 1 is "ON" both the supply and return dampers will be open and the room’s digital thermostat will become energized. When Room 2 is "ON" the motorized dampers from Room 1 will close and Room 2 will open. On the flip Room 1 thermostat will turn off while Room 2 becomes energized. Package Contains 2 Supply Air Motorized Dampers 2 Return Air Motorized Dampers Top Plenum (Air Handler) Bottom Plenum (Air Handler) Digital Thermostat w/ 15ft Control Wire Installation and Wiring Guide Components 4 Motorized Dampers 2 Plenums (customized upon request) 1 Switchover Control (timer plug to allow control of the switchover times 1 Digital Thermostat Key Benefits Only 1 Air Handler and Condensing Package needed Less expensive than 2 complete systems Precision Drive Motors with fail open safety Manufacturer Limited Warranty Easy Installation Industries best support! Excel Air Dual Room Damper Package Installation Instructions & Diagram *Note that the Dual Room Damper Package is not suitable to be used with the Excel Air ELITE Series Units.