Taco ZA024Q4A2 Actuator Sentry Power Head

Original price was: $166.87.Current price is: $111.59.

19 in stock

SKU: 816599 Categories: ,


The Taco ZA024Q4A2 Actuator Sentry Power Head is a replacement actuator head compatible with Taco Zone Sentry zone valves. Here’s a breakdown of its key features and functions:


  • Replaces the existing actuator head on a Taco Zone Sentry valve to control water flow in hydronic heating and cooling systems.
  • Provides on-off control for individual zones, opening or closing the valve based on thermostat signals or other control inputs.
  • 24V AC powered, compatible with standard wiring for most hydronic systems.

Key Features:

  • Normally open (NO) or normally closed (NC) operation: Choose the configuration that suits your system’s needs.
  • Quick connect wiring: Simplifies electrical connections for faster installation.
  • Green LED indicator: Provides visual confirmation of valve operation and thermostat status.
  • Durable construction: Built with high-quality materials for long-lasting performance.
  • Compact design: Fits easily into tight spaces.
  • Energy efficient: Uses minimal power during operation.


  • Compatible with Taco Zone Sentry valves, specifically models with ZA prefix in the part number.
  • Ensure the power supply voltage (24V AC) and control signal type match your system requirements.

Things to Consider:

  • Matching your existing Zone Sentry valve: Confirm the ZA024Q4A2 is compatible with your specific valve model.
  • Professional installation recommended: While DIY replacement is possible with basic electrical knowledge, consulting a qualified plumber is recommended for accurate diagnosis, safe wiring, and optimal performance.

Overall, the Taco ZA024Q4A2 Actuator Sentry Power Head offers a reliable and efficient replacement for worn-out or malfunctioning actuator heads on Taco Zone Sentry valves. Its ease of installation, energy efficiency, and compatibility with various system configurations make it a popular choice for repair or upgrade of hydronic heating and cooling systems.

Additional information

Weight 0.77 lbs


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