Feature: 1. Powerful Heating Capability: Designed specifically for hot and cold water bathtubs, our water heater thermostat boasts a 2.7 to 3.3KW power output, focusing on heating and maintaining water temperature, even for cold water. 2. Intelligent Self Diagnosis Function: With an intelligent control system that continuously monitors the operation of each component of the heater, our water heater provides prompt alerts to prevent damage or malfunction, ensuring a safe and efficient heating process. 3. Digital Display: Equipped with a digital display, the electric pool water heater immediately halts operation in case of any malfunction, displaying corresponding messages on the panel for users or technicians to identify the issue accurately. 4. Easy Maintenance: Our water heater thermostat requires no special maintenance or programming, offering exceptional performance, comprehensive functions, simple operation, and user friendly experience. 5. Easy Installation for Various Bathtubs: Positioned below water level, the pool heater starts functioning once the bathtub is filled, making it suitable for circulating systems in pressurized bathtubs such as massage tubs and SPA tubs. Specification: Item Type: Water Heater Thermostat Material: Stainless Steel Weight: Approx. 2286.00g/80.64oz Voltage: 220 to 240V Product Size: Approx. 375x147x122mm/14.76x5.79x4.8in Installation Hole Spacing: Approx. 250x95mm/9.84x3.74in Adapter Union Interface Diameter: Approx. 50mm/2.0in Power: 2.7 to 3.3KW Waterproof Rating: IP44 Current: 14A Applicable Heating Bathtub Water Capacity: 1m³ Usage: Constant Temperature Heating Heater Type: Water Heater Applicable Locations: Massage Bathtub, SPA. Package List: 1 x Pool Heater 1 x User Manual 2 x Adapter Union with Sealing Circle Note: 1. Before installation or maintenance, please turn off the power. 2. Proper grounding is important. Ensure the grounding wire is connected to the terminal marked as such. 3. This product should only be installed and serviced by licensed professionals, following local electrical regulations and the instructions in this manual. 4. The power supply must be single phase three wire (L, N), and the heater can be connected to a 220 to 240 VAC 50/60Hz power supply. A Ground Fault Circuit Interrupter (GFCI) must be installed. 5. Carefully inspect the wiring and connections of the heater before installation to prevent any damage or accidents caused by loose parts during transport.