Advanced zoning control system using the EnviraCom™ communications protocol. The easiest to install networked zoning system in the industry. Zone of Greatest Demand algorithm reduces and regulates HVAC cycles, decreases damper cycles, and increases efficiency.

Features

• Use with VisionPRO IAQ Thermostats or FocusPRO communicating thermostats.
• Expandable to nine zones with additional W8703 Damper Interface Modules and Thermostats. 
• Compatible with conventional gas, oil, electric or heat pump systems up to 3H/2C. 
• Unsurpassed ease-of-wiring with only three wires to connect between devices. 
• True communicating system using standard thermostat wire. 
• Networked zoning enables these features: Time synchronization, Selectable high and low equipment protection settings, Adjustable purge timing and damper positions. 
• Telephone access when used with optional W8735D Telephone Access Modules. 
• Uses Zone of Greatest Demand Intelligence to reduce system cycling. Optional use of two transformers for power when many dampers are needed.

Specifications