Dongfeng KL trcuk parts electric Air conditioning controller assembly 8112010-C3100C5101

Designed as a centralized control hub for the truck’s AC system, the assembly integrates six core functions to customize cab comfort: temperature adjustment (16–30°C, 1°C increments), fan speed control (5 levels, from low to max), air mode selection (face, feet, defrost, face+feet), AC on/off, rear defogger activation, and recirculation mode. Each function is operated via tactile push buttons or a rotating temperature knob—both with backlighting (white LED, adjustable brightness) for visibility in low-light conditions (e.g., night driving). Unlike basic controllers with limited modes, this integrated design allows drivers to fine-tune airflow and temperature, adapting to diverse conditions (e.g., defogging the windshield in rain, cooling the cab quickly in summer). The controller also stores the last used settings, automatically restoring them when the truck is restarted—saving time for frequent drivers

Equipped with a built-in NTC temperature sensor (accuracy ±0.5°C) and a microprocessor, the controller delivers intelligent, precise climate control. It continuously monitors the cab’s internal temperature, comparing it to the set temperature and adjusting the AC compressor’s on/off cycle and blower speed automatically. For example, if the cab temperature exceeds the set value by 2°C, it activates the compressor at full capacity; when the temperature is within 0.5°C of the set value, it reduces compressor output to maintain stability—avoiding temperature fluctuations and improving energy efficiency (reducing battery/engine load by 15% compared to manual control). The controller also communicates with the truck’s engine ECU to prioritize AC operation only when the engine is running, preventing battery drain—a critical feature for idle-stop scenarios

Built to withstand the constant vibration and harsh conditions of truck operation, the controller uses rugged, high-performance materials. The front panel is made of scratch-resistant PC (polycarbonate) plastic with a matte finish that resists fingerprints and scuffs from daily use, maintaining a clean appearance for years. The internal circuit board is coated with a conformal layer (epoxy resin) that protects components from moisture, dust, and electrical interference—ensuring reliable operation in humid or dusty environments. The button mechanisms use metal dome switches (500,000+ press lifespan) that resist wear, unlike rubber buttons that deteriorate within 100,000 presses. Additionally, the controller’s mounting bracket features rubber dampers that absorb 60% of road vibration, preventing internal components from loosening or failing due to shaking. This durable design ensures the controller operates reliably for 300,000+ km

Engineered for driver convenience, the controller features an intuitive layout and practical diagnostic capabilities. Buttons are labeled with clear, universally recognized icons (e.g., snowflake for AC, fan for speed) and have a distinct “click” feedback when pressed, confirming input without requiring visual checks—critical for safe operation while driving. The backlit display shows real-time temperature, fan speed, and air mode, with high contrast for readability in direct sunlight. For maintenance, the controller includes a self-diagnostic function: if the AC system malfunctions (e.g., compressor failure, sensor error), it flashes a specific LED code (e.g., 3 flashes for temperature sensor fault) that technicians can use to quickly identify issues—reducing repair time by 40%. Each unit undergoes strict testing: vibration testing (10–2,000 Hz, 20G acceleration), temperature cycling (-40°C to 85°C), and button durability trials. Backed by a 24-month warranty against manufacturing defects (e.g., display failure, button malfunction, circuit board damage), it provides Dongfeng KL truck owners with a reliable, easy-to-use AC control solution