The bathtub controller is typically connected to multiple accessories to ensure the stability and safety of the electronic control system. Common accessories include:
Ground Fault Circuit Interrupter (GFCI)
The GFCI detects electrical leakage in the circuit and immediately shuts off power if leakage is detected, preventing electric shock accidents. This is a crucial safety component in bathtub control systems, especially in environments where water and electricity are combined. By significantly enhancing safety, the GFCI is an essential feature for modern bathtubs.
Overload Protector
When the electrical current in the control system exceeds the preset limit, the overload protector automatically cuts off power to prevent circuit damage or fire hazards.
In many high-end bathtubs, particularly those designed for North American and European markets, overload protectors are a standard safety feature. They are especially common in bathtubs equipped with powerful heating functions or hydro-massage systems, where they protect key components such as controllers, heaters, and motors from excessive current damage.
However, not all bathtubs require an overload protector. Lower-end or simplified models may exclude this feature or implement alternative methods to prevent circuit overload, such as designing electrical components with lower power consumption. Therefore, when selecting a bathtub controller, manufacturers should confirm whether it includes an overload protector.
Water Level Sensor (Optional)
A water level sensor continuously monitors water level changes in the bathtub, ensuring it remains within the proper range. If the water level is too high or too low, the controller will issue a warning or automatically adjust the water flow to prevent potential damage caused by abnormal water levels.
Temperature Sensor (Optional)
A temperature sensor monitors the water temperature to ensure it stays within the desired range. If the temperature becomes too high or too low, the controller will activate the heating or cooling system to regulate it, providing users with a comfortable bathing experience.