Commercial Inverter Heat Pump Multifunctional DC Inverter Heat Pump Controller Control Board. Integrated Control Modules: Inverter compressor drive and system operation modules integrated to reduce installation space and costs. Customizable Multi-Language Support: Supports customization for multiple languages including English, German, Polish, and Spanish. Built-in Wi-Fi Remote Control: Enables remote device control via mobile APP through built-in Wi-Fi module. 5-Inch TFT Touch Display: Features a 5-inch TFT color touch screen for quick parameter setting and easy operation. Comprehensive Working Modes: Includes Heating, Cooling, DHW, Silent, Smart, and Booster modes. Intelligent Defrost Control: Features intelligent defrost control mode for stable and energy-saving performance. Power Off Memory Function: Retains settings and data even after power loss. 100% Pre-Delivery Testing: All goods undergo 100% testing before delivery to ensure quality.