The ZVC404-EXP-4 is a four zones zone valve control for managing a zoned hydronic system easily and efficiently. Mounting and wiring the ZVC404-EXP-4 is simple thanks to a compact, sturdy enclosure and contractor friendly PC board layout. Post purge and pump exercise operation modes will run your pumps briefly after calls for heat or long periods of inactivity. These improve the efficiency and dependability of your system, respectively. With universal thermostat compatibility, Taco's zone valve controls are easily integrated into any system. In addition to handling zone valves, the ZVC404-EXP-4 also has two end switches for system, secondary, or DHW pumps.
Protected Priority Switching
With the ZVC403-4, a single zone may be designated as a priority zone whose heating demands are given precedence over other zones. Other demands will be met when the priority zone is satisfied or after sixty minutes of priority operation.
Taco's -EXP zone valve controls may be combined with other zone valve controls or expandable Taco zone switching relays for large scale zoning applications. Up to 20 zoning panels may be connected together, providing you with complete zone control regardless of the scope of your system.
Add-On Power Controls
The ZVC404-EXP-4 is compatible with Taco's PC700 line of supplemental controls. It's easy to add outdoor temperature reset via variable speed pump mixing or boiler reset control.
Product Compatible with
- Taco -EXP Expandable Zone Controls