The Robertshaw SlimZone® Deluxe zone panel is Simply the Right Choice™ for light commercial and residential applications. It is designed for up to seven zones when installed with a single heating and air conditioning unit. The SlimZone® Deluxe is compatible with HVAC constant volume zone systems. Each zone is controlled by its own thermostat and motorized dampers which are wired to the SlimZone® Deluxe zone panel using 18-gauge thermostat wire. The zone panel utilizes microprocessor technology to monitor thermostats, and is wired directly to HVAC equipment. When temperature adjustments are required, the SlimZone Deluxe zone panel energizes HVAC equipment using selectable algorithms. The system consists of the SlimZone Deluxe master board which controls up to three zones. It can be increased up to seven zones in two-zone increments when used with SlimZone Deluxe two zone expander boards. Air distribution to each zone is controlled by two-wire spring return or three-wire power open/power closed rectangular or round motorized dampers.