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Aquastat Relays

Available9 products
Aquastat relays are thermostat-based relays that help maintain the correct water temperature in hydronic heating systems by turning the heating components on and off. Depending on their configuration, they can act as a high limit, low limit, or both. Some units feature additional contacts that control the circulating pump.
Differential Temperature

Single Function

Single Function
Single-function aquastats prevent the hydronic heating system from exceeding its upper- or lower-temperature limit. They activate when their trigger temperature is reached and turn the boiler on or off.

Automatic Reset

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Automatic/Manual Reset

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Manual Reset

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Reset Type: Unspecified

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Dual Function

Dual Function
Dual-function aquastats moderate the temperature of hydronic heating systems by turning the boiler on when temperatures get too low and turning it off if they get too high. They are often used for heating systems in commercial or residential applications for space heating or hot water supply.

Automatic Reset

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