4-Zone Valve Control w/ Priority, Expandable


Brand: Taco

Mfr Part#: ZVC404-EXP-4

UPC#: 687752857665

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$152.95 / each & Free Shipping
x2 $301.90 & Free Shipping
(2 x $150.95 / each)
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Taco ZVC404-EXP is a 4-Zone Valve Control (Expandable up to 20 Zones). It works with 2 / 3 or 4-wire zone valves and comes fully fuse protected. Other features include two isolated end switches and a built-in priority switch. The easy to read PC board layout of the Taco Zone Valve Controls eliminates the problems with incorrect wiring and the “unfinished” look of conventional zone valve installations. The sturdy screw connections add additional reliability, while the external indicator lights provide instant diagnostic feedback, reducing installation time.
All Taco ZVC404-EXP Zone Valve Controls are made in the USA, UL and CSA listed and protected by an extended 3 year warranty.


  • External Indicator Lights;
  • Switchable Priority;
  • Simplified Wiring;
  • Works with 2, 3, or 4-Wire Zone Valves;
  • Compact Design;
  • Fuse Protected;
  • 100% Factory Tested;
  • Two Isolated End Switches;
  • Extra Set of Dry Contacts;
  • Contractor Friendly PC Board Layout;
  • Universal Thermostat Compatibility;
  • UL and CSA Approved;
  • Sturdy Screw Connections;
  • Expandable to 20 Zones;
  • Interface with -EXP Switching Relays;
  • Made in the USA;

Technical Specifications:

  • Zones: 4 (expandable up to 20), plus Priority;
  • PowerPort Slots: 2;
  • Power Control Plugs: 1;
  • Power (Transformer Voltage): 120 VAC Input;
  • Transformer Rating: 80 VA;
  • Dimensions: 11-3/4" wide x 7-1/2" high x 3" deep;


Extended 3 Year Warranty;
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