928-048

The Hi & Low Limit Aquastat Control is a precision immersion-type temperature controller designed for hydronic heating systems and boiler applications. This essential safety and operational component monitors water temperature to provide dual-function regulation: the high-limit control prevents the boiler from overheating by breaking the circuit if temperatures exceed safe levels, while the low-limit control ensures the system maintains a minimum temperature for consistent heat delivery or domestic hot water production. Engineered for reliability, this aquastat helps optimize fuel efficiency, protect system longevity, and maintain a comfortable environment. It is an ideal replacement part for residential and commercial heating systems requiring accurate thermal sensing and dependable equipment protection.
Type: Boiler Temperature Control
Size: Standard immersion control
Application: Used in hydronic boiler systems, hot water heating plants, and domestic water heating applications to regulate operating temperatures and provide safety shut-off capabilities.
Specifications: Dual-function high and low-limit temperature sensing, immersion-well mounting, adjustable temperature setpoints, and integrated switching for burner or circulator control.