Explore our foundational engineering solutions designed for high-performance thermal regulation.
With roots traced back to the Xiangshan Refrigeration Accessories Factory of Zhejiang University, we have built a 35+ year legacy as a pioneering HVAC system component and air conditioning controller supplier. Today, we stand as a certified national high-tech enterprise, operating at the convergence of advanced academic research and elite industrial manufacturing.
Our core mission revolves around systemic innovation in heat management and environmental control. Through systematic design and validation, we supply major home appliance giants including Haier, Midea, Gree, Whirlpool, Electrolux, and Xinfei. Our global logistics system supports reliable delivery to over 50 countries, spanning Europe, the Americas, Southeast Asia, and the Middle East.
Our product ecosystem ranges from robust thermodynamic pipeline connectors to intelligent PCB assemblies, ensuring that modern cooling systems run efficiently under varying load profiles.
The cooling sector is undergoing a regulatory shift driven by decarbonization, low-GWP refrigerants (like R32, R290, and CO2), and energy labels. These factors demand smarter air conditioning controllers and highly reliable system filters.
Modern residential and commercial units rely on Variable Refrigerant Flow (VRF) and inverter systems. Our controller PCBs utilize sophisticated algorithms to modulate compressor cycles, reducing starting currents and active operational energy demands.
Newer eco-friendly refrigerants and synthetic lubricants (POE/PVE) are highly hygroscopic. Liquid line filter driers must absorb moisture and prevent acid formation, protecting the compressor motor from early winding failure.
Global supply chains demand compliance with RoHS, REACH, and CE regulations. By sourcing materials like copper, lead-free solder, and UL-certified plastics, we help HVAC OEMs bypass international customs barriers.
Discover the manufacturing and engineering protocols behind our filters, copper lines, and high-frequency control boards.
Refrigeration systems are highly sensitive to internal contamination. The introduction of trace moisture causes acid formulation, which breaks down motor insulation in hermetic compressors. Taojun's copper filter driers feature 3A molecular sieves with pore structures sized to select water molecules while ignoring refrigerant blends.
For systems utilizing ester oils (POE/PVE) that break down into organic acids, we build custom filters incorporating activated carbon layers. This retains thermal efficiency and prevents expansion valve blockage.
As a dedicated air conditioning controller supplier, we understand that variable frequency control is critical to energy savings. Our PCBs are designed to withstand high thermal loads and power line fluctuations.
Using active Power Factor Correction (PFC) circuitry and smart microcontrollers, our controllers match compressor performance to real-time ambient heat loads. Inverter PCBs undergo extensive electromagnetic compatibility (EMC) testing and high-voltage breakdown analysis up to 100V.
Refrigerant leakage damages the environment and reduces system efficiency. We seal our filter driers, check valves, and copper adapters using automated argon arc welding, creating uniform joints that withstand high operational pressures.
These components are verified using dry air purge systems and helium leak detectors. This process maintains circuit integrity over decades of continuous operation.
Our engineering team includes industry professionals and academic advisors from the University of Science and Technology of China (USTC) and Zhejiang University. This partnership ensures our product development aligns with the latest research in heat transfer and electronic control.
From home cooling to deep-temperature industrial logistics, our controllers and refrigeration parts keep systems running smoothly.
Providing reliable variable frequency controllers and copper capillary assemblies for home cooling systems, ensuring high seasonal energy efficiency ratings (SEER).
Delivering high-flow copper filter driers and safety service valves to manage complex refrigerant loops in multi-story office buildings and retail spaces.
Heavy-duty receivers, accumulator assemblies, and high-precision pressure management controllers designed to safeguard temperature-sensitive cold chain logistics.
Providing specialized quick-adapter coupling kits, microchannel components, and small-footprint filter receivers built to handle road vibration and thermal cycling.
A history of continuous improvement and engineering innovation in refrigeration technology.
Established as the Xiangshan Refrigeration Accessories Factory of Zhejiang University. This academic foundation helped guide our early product design and manufacturing methods.
Integrated the MES intelligent workshop management system. This digital upgrade enabled real-time component tracking, materials monitoring, and automated manufacturing controls.
Collaborated with global home appliance leaders to export our components to over 50 countries. We continuously invest in eco-friendly research to support low-GWP refrigerant systems.
Ningbo Taojun Refrigeration Equipment Co., Ltd. operates under strict international quality standards. We hold the official GB/T19001-2016/ISO9001:2015 certification (Registration No.: 41325Q00065R0S), verifying our manufacturing capabilities for filter driers, condensers, and control valves.
Our facility is equipped with automated leak testing and visual inspection systems to meet the strict quality standards of the global market:
Our upcoming product generation is designed to meet the connectivity and sustainability demands of the modern HVAC industry.
We are developing controllers with onboard Wi-Fi, Bluetooth, and Modbus capabilities. These updates support building management systems (BMS), remote diagnostics, and energy-use tracking.
Natural refrigerants like carbon dioxide require components that can handle high working pressures (exceeding 120 bar). Our upcoming line of thick-walled copper and stainless steel valves are engineered to support these systems safely.
Our upcoming controllers will integrate machine-learning predictive models to optimize compressor speed, helping systems adapt to changing weather conditions and load demands.
We provide full technical support at every stage of your product lifecycle.
Our engineering team is available to assist with component design, sizing, and calculations. We provide expert advice to help you select the right filter sizes and control board layouts for your project.
We support customized development with low minimum order quantities (500 units) and quick production turnarounds. Our team helps you move from design draft to physical prototype in just a few days.
We back our products with a one-year warranty and offer technical assistance throughout the product lifespan. Our customer support hotline responds to inquiries within 8 hours.
Find answers to common questions about our technical specifications, ordering process, and customized design options.
Explore our selection of commercial-grade HVAC filters and electronic controls.
Taojun