The HY527B Outdoor Heating Expansion Controller is an intelligent add-on unit for the HY527A Master Outdoor Heating Controller, controlling 3 additional heating circuits. Technically, it functions as a slave controller, connecting under the Master unit, allowing seamless expansion of the main system.
The compact, DIN-rail mountable module (89.5×90×65 mm) is the same size as the Master Controller, ensuring easy integration into existing systems. All connected zones are programmable and individually controllable through the Master unit, ensuring optimal heating performance and energy-efficient operation.
Benefits:
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Add-on unit for HY527A Master Controller
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Controls 3 additional heating circuits
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Compact, DIN-rail mountable (89.5×90×65 mm)
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Technically a slave controller
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Remote programming and individual zone control via Master
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Energy-efficient and reliable operation
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Easy integration into existing systems
