The GRENTON thermoelectric actuator is a dedicated actuator for use with zone valves or thermostatic valves in manifolds for underfloor heating. The actuator is available in the NC (Normally Closed) version, meaning that it must be supplied with the rated voltage to allow fluid flow in the heating system. The First Open function allows the heating system to operate by opening the actuator during the startup / installation phase without the need to supply the device with the rated voltage. Thermoelectric actuator in NC (Normally Closed) configuration. The actuator opens when supplied with 230V voltage. It enables precise room temperature control by regulating the supply of hot water to the radiator. Visible element indicating opening or closing. It does not consume power in the closed state. "FIRST OPEN" function - facilitating actuator installation. Easy vertical or top-down installation.
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