FAQ - AHUs

Question 1

What is an AHU (Air Handling Unit)?

Accepted Answer

An AHU is modular equipment that performs complete air treatment: filtration, heating, cooling, humidification and dehumidification. Unlike a simple fan coil, the AHU offers precise control of multiple air parameters for critical applications.

Question 2

What is the difference between an AHU and a fan coil?

Accepted Answer

The AHU offers complete air treatment (filtration, humidification, heat recovery), while the fan coil only cools or heats. AHUs are used in applications requiring precise air quality control, such as clean rooms and hospitals.

Question 3

Is an AHU recommended for clean rooms?

Accepted Answer

Yes, AHUs are essential for clean rooms. With filtration up to H14 (HEPA), positive pressure control, humidity and temperature, they meet ISO 5 to ISO 8 classifications for pharmaceutical, electronic and hospital industries.

Question 4

What is heat recovery in an AHU?

Accepted Answer

Heat recovery is a system that transfers thermal energy from exhaust air to fresh air, reducing energy consumption by up to 80%. It can be through enthalpy wheel, plates or run-around coil.

Question 5

What is the maximum air flow of an AHU?

Accepted Answer

Helioterm AHUs reach air flows from 2,000 to 100,000 m³/h in a single unit. For higher flows, multiple units can be combined or custom AHUs designed.

Question 6

Can an AHU be integrated with a BMS system?

Accepted Answer

Yes, Helioterm AHUs have integrated DDC control with BACnet, Modbus and LonWorks protocols for integration with building automation systems (BMS), enabling centralized monitoring and control.

AHUs

Main Features

Technical Specifications

Benefits

Modularity

Air Quality

Efficiency

Total Control

Applications

Frequently Asked Questions

Need more information?