HLN-050D1 Energy Condensing Exhaust Heat Recovery AHU ensuring fresh air flow and reduced energy in ventilation equipment

Delivering a consistent fresh air supply while effectively reducing energy consumption through advanced heat recovery technology.

The Holtop Condensing Exhaust Heat Recovery Air Handling Equipment ensures a continuous supply of fresh, pre-conditioned air while enhancing comfort and maintaining strict indoor air quality standards. Its intelligent control system allows precise adjustment of airflows and heat recovery rates, adapting seamlessly to varying environmental conditions.

With robust construction and low maintenance requirements, the Holtop unit offers long-term reliability and exceptional performance. This sustainable ventilation solution represents a smart investment in energy savings and operational efficiency.

• High-standard configuration ensuring reliable operation
• Total heat recovery core with patented technology for high-efficiency energy savings
• Fresh air conditioning with comprehensive indoor air quality controls
• Eliminates the need for an extra independent ventilation system
• No requirement for additional cooling towers and outdoor units
• Independent fresh air cooling system operation

Compared with conventional chilled water systems, the evaporation temperature is 8–10°C higher, eliminating the need for secondary heat exchange of chilled water. This increases the refrigeration energy efficiency ratio by more than 30%.

Engineered for reliable operation with premium components and robust construction.

Features a total heat recovery core with patented technology achieving over 92% heat recovery efficiency. The system utilizes indoor exhaust with low temperature and low humidity as cooling air for the evaporative condenser, making use of both sensible heat (temperature difference) and latent heat (humidity difference) from indoor exhaust.

This condensation effect significantly outperforms the direct use of outdoor air as cooling air, avoiding energy loss caused by air conversion ventilation. Similarly, during heating operation, high-temperature, high-humidity air discharged from the room serves as the heat exchange heat source on the evaporator side. Compared to traditional central air conditioning systems, fresh air load energy consumption is reduced by approximately 50%.

The equipment directly processes fresh air introduced from outside while discharging indoor polluted air caused by human activities and building materials. The fresh air exhaust operates through independent channels with air isolation heat exchange, ensuring absolute air freshness and eliminating cross contamination.

Optional ozone disinfection, ultraviolet sterilization, and high-voltage electrostatic dust removal modules make this system suitable for hospitals and other facilities with stringent air quality requirements.

During transition seasons, the system utilizes fresh air to handle indoor loads, operating only supply and exhaust fans for automatic ventilation without compressor activation. This eliminates the need for separate ventilation systems, delivering enhanced energy savings.

When temperature requirements are met but humidity control is needed, the system can treat fresh air independently without activating the main air conditioning host system.

The integrated design eliminates the need for outdoor units, cooling towers, and high-power cooling water pumps. This significantly reduces initial project investment while providing higher operational efficiency.

The evaporative condensing unit employs tubular evaporative condensing technology, utilizing water film evaporation on fin surfaces to achieve cooling and condensation through mass and heat transfer.

Features a full Chinese LCD display and microcomputer intelligent controller with advanced control capabilities, comprehensive functions, and a high degree of electromechanical integration.

The system provides complete unit management including start/stop program control, timing functions, comprehensive fault alarm systems, and self-diagnostic capabilities. The controller offers robust automatic control with strong anti-interference capabilities and multiple protection features: