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Available for constant circulation applications to maintain temperature between 85ºF and 105ºF (29ºC and 41ºC). The Armstrong aquastat control accessory is designed for use with Astro Series wet rotor circulators in potable hot water re-circulation installations.

The aquastat control automatically turns the circulator on when the temperature in the hot water line falls below approximately 85ºF (ON condition - for example when there is low demand on the hot water supply). The control turns it off again when the temperature exceeds 105ºF (OFF condition - as in the case of periods with high demand).

  • Easy to install
  • Temperature actuated pump control
  • Environmentally sealed enclosure
  • Surface sensing through snap acting bimetalic disc
  • UL Listed
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