Taco ZVC-404-EXP Zone Valve Control

The Taco ZVC-404-EXP Zone Valve Control is a 4-zone expandable electronic control for hydronic systems. It delivers precise valve actuation with DPDT switching and a compact design that simplifies wiring and installation.

Powered from 120 VAC at 60 Hz with an internal 80 VA transformer and 24 VAC for the zone valves, this control supports boiler and circulator operation across multiple zones. The UL-listed unit is housed in a NEMA 1 enclosure for safe indoor use, and it offers a front diagnostic light, built-in priority protection, and field-replaceable components to streamline service.

• 4-zone expandable design for scalable hydronic control
• Electronic actuation with DPDT switching for precise valve operation
• Front diagnostic light and priority protection for quick troubleshooting
• Field-replaceable transformer with 24 VAC Class 2 thermostat compatibility
• 24V AC power output terminal and main and priority end switches for versatile wiring
• Compact design and simplified wiring for easy installation
• UL listed and NEMA 1 enclosure protection
• 2 boiler contacts suitable for boiler and circulator control

Ideal for boiler, circulator, and hydronic system applications, the Taco ZVC-404-EXP Zone Valve Control delivers reliable mid- to large-scale zone management with practical features and durable construction.