Description
The Bosch HVAC 7738003611 Hydrolevel Extended Well is a replacement immersion well intended for hydronic heating and boiler control applications within HVAC systems. It is installed in the boiler or piping assembly to house and position temperature sensing controls while separating the sensing element from direct contact with water or fluid inside the system. The extended well design assists with accurate temperature monitoring in deeper or insulated installations where standard wells may not provide proper sensor placement. It works as part of the control and safety arrangement, supporting stable operation of boilers, circulating systems, and related heating equipment in commercial and residential conditions.
