The Tracer ZN511 and ZN521 zone controllers provide digital control for several types of heating, ventilating, and air-conditioning (HVAC) equipment.
The Tracer ZN511 controls:
• Water-source heat pumps
• Fan coils
• Cabinet heaters
The Tracer ZN521 controls:
• Unit ventilators
• Fan coils
• Cabinet heaters
• Blower coils