Zoned Damper Systems

With a state-of-the-art zoned damper system from Mr. Furnace, you will have individual temperature control for each zone (room) in your home or office. The system is comprised of a standard furnace or air conditioner unit (forced air HVAC equipment), a control panel, dampers (usually one, or more for each zone), thermostats (one for each zone), and the ductwork. In addition, a system might require a bypass damper for system pressure relief (see below).

Thermostats in each zone are wired to the Zoned Comfort Control panel. The control panel is then wired to the HVAC equipment and to zone dampers located in the system’s ductwork. The control panel understands each zone’s need for conditioning and operates the equipment (on/off) while controlling the position of the dampers (open/closed) based upon the thermostat requirements. This assures that conditioned air is directed where and when it’s needed.

It is least expensive and easiest to install in a new home. However, in most cases, Zoned Comfort Control can be added to existing systems at any time. Zoning in existing homes can pose challenges, but Mr. Furnace addresses these challenges with a full line of slip-in round dampers designed to be low in cost and easy to install in existing systems.

It is important to design zone systems to account for the added system pressure that is caused when zone dampers are closed. With Zoned Damper Control, as dampers close to restrict airflow to non-calling areas, the equipment will attempt to deliver its full capacity, although only a percentage of airflow is required. Therefore, to avoid problems that are associated with restricting the airflow, (i.e., high limit, freezing of the coil, air noise) some method of pressure relief is required. This may include over-sizing of the ductwork (all zones capable of carrying 70% of the system’s airflow), using a bypass damper, or our exclusive ‘Controlled Pressure Relief (CPR)’ method. The CPR method involves slightly over-sizing the system’s supply ductwork while an engineered amount of bypass is allowed into a closed zone. This method eliminates the need for a bypass damper, minimizing system cost while maximizing comfort.

Contact us to learn more and to get a quote on a zoned damper system custom-designed for your home.