Zone Control Systems Model NCM-300 Zone Control

- Compatible with single-stage, 2-stage and heat pump systems

- Maximum of (3) zones

- Automatic changeover

- Opposite system service

- Short cycle timers

- Staging via adjustable on-board timer (7 to 42 minutes)

- Enhanced Hydro-Air capabilities, can delay fan activation on heating demand

- Supply air temperature monitoring to help protect HVAC equipment

- Adjustable purge time (90 or 120 seconds)

- On-board LED#39;s indicate system operation

- Includes Supply Air Sensor (SAS)