Description
The Taco Comfort Solutions V100T2G2ZA024Q4A2 is a 2-way, normally closed (N/C) zone valve engineered specifically for geothermal hydronic systems. Featuring a 1″ NPT connection and 24V control voltage, this valve delivers reliable, on-demand flow control in closed-loop geothermal heating and cooling applications. Taco’s V100 series zone valves are trusted by HVAC professionals for their durable construction, responsive actuation, and compatibility with standard 24V zone control panels and thermostats.
Key Features
- 2-way, normally closed (N/C) valve operation — closes automatically on power loss for system safety
- 1″ NPT connections for straightforward installation into standard hydronic piping
- 24V control voltage — compatible with most residential and light commercial zone control panels
- Designed specifically for geothermal hydronic heating and cooling systems
- Reliable electric actuation for precise zone-by-zone flow management
- Durable construction built to withstand the demands of continuous hydronic system operation
Specifications
- Brand: Taco Comfort Solutions
- Model / SKU: V100T2G2ZA024Q4A2
- Valve Type: 2-Way Zone Valve
- Fail Position: Normally Closed (N/C)
- Connection Size: 1″ NPT
- Control Voltage: 24V
- Application: GeoThermal Hydronic Systems
Application
Ideal for geothermal ground-source heat pump systems, radiant floor heating, and other closed-loop hydronic installations where precise zone isolation and flow control are essential. The normally closed design ensures that flow is automatically shut off in the event of a power interruption, protecting the system from unintended circulation.







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