The pressure independent dual duct units with integral mixing section type NZ.A..B provide a constant or variable air volume in dual duct systems.
The pressure independent dual duct units with integral mixing section type NZ.A..B provide a constant or variable air volume in dual duct systems. The engineered, reliable long life design offers proportional mixing without the risk of ”short-cut” of hot and cold air at the inlet. The airflow sensor type Flo-Cross® in one inlet is standard and provides an accurate measurement and control of the cold or warm air volume. Normally the cold air volume is controlled by a thermostat to match the room load while the hot air volume is controlled to maintain a constant mixed supply volume to the room.
