Description
Product Overview
The Caleffi Z151000 Z-One 24-Volt Normally Closed Valve Actuator is engineered for precise control in hydroid and air conditioning systems. This compact actuator automatically shuts off or redirects hot or chilled water, enhancing system efficiency. Constructed with high-quality copper materials, it ensures excellent thermal conductivity and corrosion resistance. Key specifications include a voltage rating of 24 volts, dimensions of 2.38 x 3.44 x 3 inches, and a weight of 1.01 pounds. It comes as a complete unit with an auxiliary switch and terminal block, requiring no batteries for operation.

Usage
This actuator is designed for integration into residential and light commercial HVAC systems, particularly in hydroid heating and chilled water air conditioning setups. It is suitable for installation inside baseboard heaters or directly within fan coil units, providing reliable flow control. Ideal for homeowners, HVAC technicians, and facility managers, it operates in environments requiring automated water diversion to maintain temperature consistency and energy efficiency.
Why Choose Us
Caleffi is renowned for its commitment to quality and innovation in HVAC components. The Z151000 actuator features robust copper construction, ensuring long-term durability and optimal performance. Its compact design allows for easy installation in tight spaces, while the normally closed function provides fail-safe operation. Backed by positive customer reviews and a high best-seller rank, this product offers reliable performance that meets industry standards for safety and efficiency.
Key Features
- Automatically controls water flow in HVAC systems for energy savings
- Compact size fits seamlessly into baseboard or fan coil units
- Constructed from durable copper for enhanced thermal efficiency
- 24-volt operation with normally closed function for safety
- Includes auxiliary switch and terminal block for easy integration
FAQ
What systems is this actuator compatible with?
It is compatible with hydroid heating and air conditioning systems that use hot or chilled water, such as those in residential or light commercial buildings.
Does it require batteries to operate?
No, this actuator operates on 24 volts AC power and does not need batteries, ensuring continuous performance without maintenance.
Can it be installed in confined spaces?
Yes, its compact dimensions of 2.38 x 3.44 x 3 inches make it ideal for tight installations in baseboards or fan coil units.
What is the material used in construction?
The actuator is made from copper, which provides excellent durability and thermal conductivity for efficient operation.
Is it normally open or closed?
This is a normally closed valve actuator, meaning it defaults to a closed position when not powered, enhancing system safety.




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