TacoSKU: 1784471

Taco ZVC403-5 Valve Control With Circulator Relay and Transformer

$172.43
In stock (15)

The Taco ZVC403-5 is a three-zone valve control system engineered for hydronic heating applications. This integrated unit combines zone valve control with a built-in circulator relay and transformer, streamlining installation and reducing component count. Ideal for multi-zone heating systems, it delivers reliable performance and simplified wiring for residential and light commercial installations.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • Front Diagnostic Lights
  • Switchable Priority
  • Built-in Priority Protection
  • Simplified Wiring
  • Compact Design
  • Fuse Protected
  • 100% Factory Tested
  • Built-in: Post Purge and Pump Exercise Functions
  • Two boiler contacts, utilizes full functionality of Mod-Con boilers
  • Expandable to 20 Zoning Panels (120 zones if all are 6 zone panels)
  • Interface with -EXP Switching Relays
  • Contractor Friendly PC Board Layout
  • Universal Thermostat Compatibility
  • 24 Volt Power Output for Hard Wired Thermostats
  • Field Replaceable Transformer
Specifications
Manufacturer Part Number ZVC403-5
UPC 195445252548
Overall Dimensions n/a
Material n/a
Domestic or Import n/a
End Style n/a
Type n/a
ADA Compliance n/a
Warning Professional Installation Required
Standards and Approvals n/a
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: May 25, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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