KC-50 Solar Controller – LED Display, Dual Modes, 2‑Year Warranty, OEM Available | Kaichang

For households relying on solar water heating systems, the controller serves as the central management unit that orchestrates every critical operation—from water filling and temperature regulation to freeze protection and system monitoring. The KC-50 Solar Water Heater Controller from Haiyan Kaichang Energy Saving Electronics Co., Ltd. is a comprehensive control solution designed to deliver reliable, automated management for residential solar thermal installations, combining essential functions with user-friendly operation and international power compatibility.

At the heart of the KC-50 is its versatile feature set, engineered to address the full spectrum of solar water heating needs. The controller supports automatic water filling, ensuring the tank remains at optimal levels without manual intervention. Electric auxiliary heating provides backup warmth during periods of insufficient sunlight, while the controller can be configured for one of three specialized functions—pipe freeze protection, water supply boosting, or hot water circulation—allowing users to tailor the system to their specific climate and household requirements. With dual operating modes, users can choose between manual control for direct operation or intelligent mode for automated management. The controller is available with either a 110V US-standard plug or a 220V European-standard plug, making it suitable for a broad range of international markets.

The KC-50 features a clear LED digital display that provides real-time monitoring of both water temperature and level. Water level is indicated in four clear segments, with the 20% level flashing to alert users when the tank is running low. Temperature readings are displayed prominently, allowing users to verify system status at a glance. Safety is built into the design with four layers of protection against common electrical hazards: lightning strikes, dry heating, leakage, and overflow. The controller's simple, intuitive interface makes it accessible for all users, regardless of technical expertise.

Installation is straightforward, thanks to a thoughtful U-shaped terminal design that simplifies wiring connections. The controller accommodates connections for the electric heating wire, heat tape/boost pump/circulation pump (selectable), solenoid valve, and sensor wires (available in 2-core or 4-core configurations). The complete package includes a controller host, water level and temperature sensor with cable, solenoid valve, wiring accessories, expansion bolt kit, and a user manual—everything needed for a standard installation.

Designed for compatibility, the KC-50 is suitable for 99% of non-pressurized solar water heaters, making it an ideal replacement for outdated or malfunctioning controllers. Backed by the manufacturer's direct support, the controller comes with a 2-year warranty on the main unit and a 1-year warranty on accessories, ensuring peace of mind for end-users. As a factory-direct product, the KC-50 also supports customization, bulk ordering, and OEM branding, catering to both individual households and business partners seeking reliable solar thermal control solutions.

For homeowners and professionals seeking a dependable, feature-rich controller for solar water heating systems, the KC-50 from Kaichang delivers proven performance, international compatibility, and comprehensive protection in one compact package. To learn more about this controller and explore how it can enhance your solar thermal system, visit the full product page from Kaichang today.