Buy Underfloor Heating & Warmup Electrothermic Actuator For S3 Manifold 230V Online

The WHS-M-S3-ACT230 actuators are used in combination with the Warmup S3 Manifolds to control the circuit valves. 

While operational, the actuator consumes less than 1W of power, making it the most efficient actuator in its class.

The actuators are supplied ‘latched open’ so they can be easily mounted and commissioned.  In this condition, the indicator disc is only marginally raised, with no blue visible.

Upon completing their first full power cycle the actuator then operates in a normally closed manner, opening the valve when power is supplied based on heating demand.

The disc on the top of the actuator indicates its current status; Raised (Blue) = valve open, Lowered = valve closed.