Suncourt HVAC Motorized Damper – Normally Open – Power Closed, Spring Return – ZO212

This damper is designed to control the flow of heated or cooled air in air distribution systems only. Never close more than 20% of the total air distribution system at a time. The restricted airflow through a furnace or air handler may cause damage to the air delivery and /or air conditioning equipment. This damper must never be used to control the flow of combustion air, flue gas or other toxic or hazardous gases or applications where failure of the damper can cause damage to persons, property or equipment and/or create a risk of fire, suffocation or death.

• Normally Closed Adjustable Motorized Damper
• For general ventilation control use only
• Do not use to control the flow of hazardous, corrosive, flammable or explosive materials and vapors
• Never expose this product to temperatures exceeding 140°F (60°C)
• Always leave this product accessible for maintenance, cleaning and repair
• Before installing or servicing this product, switch power off at the service panel and lock service to prevent power from being switched on accidentally
• Suncourt assumes no responsibility for the installation of the ZoneMaster
• Suncourt does not provide electrical connection information beyond what is provided herein
• If in doubt, contact a competent contractor
• For your safety and protection follow all instructions and adhere to applicable building and electrical codes.

• To reduce the risk of fire, electric shock or injury to persons, observe all instructions. The ZoneMaster has been designed to operate on 24 Volt AC, 60 Hz. The only 110/120 Volt AC connection needed is for the power supply Transformer. Before installing the Transformer, confirm that the electric power is off at the junction box where you will be making the Transformer 110/120 Volt connections.

• A standard low voltage Heat-Cool wall thermostat, designed for gas furnaces
• Electrical wire, 2-conductor, 20 Gauge (CL-2 or Bell Wire) to connect the Transformer to the Damper via the wall thermostat. If the total length of wire exceeds 80 feet (25 m), use 18 gauge wire. If two or more Dampers are wired in parallel (maximum 2 Dampers per each included 15 VA Transformer), use 18 gauge wire
• A cover plate with knockout for the electrical box that the Transformer will be mounted on
• If you are mounting the Damper between floor joists in flexible duct, you will need two duct supports
• Aluminum foil duct tape.

• The ZoneMaster will allow you to individually control the temperature of a room in your home. e.g. An unused room does not have to be heated or cooled to the same temperature as the remainder of the home. In the winter you may want a bedroom a little cooler than the rest of the home. The baby’s room you may want a little warmer than the rest of the home in the summertime. You control your comfort and save significantly on energy use.

• Size: 12 in
• : 3 Years
• Weight: 6.25 lbs