Description
The Bosch HVAC 7738003608 Hydrolevel Sensor Only is a water level sensing component used to monitor fluid presence and support safe boiler or hydronic system operation. It detects changes in water level within the system and sends a corresponding electrical response to the control board, enabling proper activation or shutdown of heating operations based on safe operating conditions in HVAC systems. Installed in boiler and hydronic heating equipment, it is typically positioned in the water circuit or sensing chamber where it prevents dry-fire conditions, protects heat exchangers, and maintains stable system operation in residential applications.
