1. What does PROTON CWU control?
This controller manages two main components as well as the pumps:
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Blower fan: Smoothly adjusts its speed, which prevents sudden temperature spikes and saves fuel.
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CH pump (Central Heating): Switches the pump on when the boiler reaches the set temperature.
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DHW pump (Domestic Hot Water): This is the key function of this model – the controller makes sure the water in the tank (cylinder) is heated according to your priorities.
2. The most important functions of the "boiler room manager":
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DHW priority: You can set the boiler to heat the water for bathing first, and only then send heat to the house.
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Summer mode: In summer, the controller operates only the DHW pump (heating the water in the cylinder), without wasting energy on heating the radiators.
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Anti-Stop: Protects the pumps from seizing up outside the heating season (switches them on briefly every few days).
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Anti-Freeze: Automatically starts the pumps when the temperature drops below 5°C, protecting the system from freezing.





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