Airfi Refit replacement AHU

Airfi Refit is suitable for use in place of up to hundreds of existing air handling unit models. The solution consists of one air handling unit and a range of different connection modules. No adapters or other separate parts are required. Use the selector to find the right machine for your construction site.

Find the right unit for me Airfi Refit product information

Select the connection module + unit body according to handedness

Choosing a replacement unit is easy

Select the connection module (Top) + unit body according to handedness

The replacement unit selector helps you find the perfect model to replace your existing air handling unit.
You will find the comprehensive compatibility tables for existing air handing units below:

Compatibility tables

All Airfi innovations now in one high-performance Airfi Refit replacement air handling unit

Duct connections ready in the right positions
Airfi Refit is suitable for use in place of the existing air handling unit, either without any ductwork modifications or with only minor ductwork, depending on the existing unit. Simply select the connection module and the unit body.
Extremely easy installation and commissioning
Installation is extremely easy and fast. The connection module can first be installed in the ductwork, after which the air handling unit is lifted into place. Ducst can also be routed through the module.
Living comfort
The unit can be controlled using the control panel or the Airfi App. Connectivity to the most common home and building automation systems is included as standard. The unit's sound level in the room is in a class of its own.
Better performance
Lower pressure drop than with separate retrofit adapters
Energy-efficient counterflow heat exchanger and heat recovery
Airfi Refit features a counterflow heat exchanger, which is more energy-efficient than crossflow heat exchangers. The air handling unit is equipped with a highly energy-efficient heat exchanger, achieving an efficiency of up to 85%. AI-powered, self-learning AFPS™ technology further enhances energy efficiency and user comfort.
A Wholesaler's Dream Product
One air handling unit is suitable for use in place of up to hundreds of models. Simply select the connection module and the unit body. The solution saves valuable warehouse space for wholesalers.
Low installation height
Airfi Refit requires no additional space, as the module is designed as an integral part of the unit. Another advantage is the exceptionally low overall installation height. No ceiling mounting bracket is required, as the connection module replaces it. The floating installation also eliminates vibration.
CO₂ and humidity sensors as standard
Sensors automatically boost ventilation as needed.

Why replace your air handling unit with a new one?

Replacing your existing air handling unit with a new one significantly improves indoor air quality and reduces energy consumption.
Modern heat recovery efficiently utilizes the thermal energy from extract air, improving the energy efficiency of your home or space.
Efficient ventilation removes moisture and pollutants while bringing clean, filtered outdoor air into your home.
Intelligent ventilation adapts to your home’s actual needs, keeping indoor air fresh while saving energy.
Replacing your existing air handling unit with a new one is easy with the help of our compatibility tables. Explore Airfi’s solutions for replacing existing air handling unit models from other manufacturers:

Compatibility tables

Installation is extremely easy due to the low-profile connection module.

Points to consider when replacing an air handling unit

Correct airflow for current needs

The airflow of the existing unit may no longer be suitable for current needs, for example if the building has been extended or additional wet rooms have been added. A ventilation professional will determine and balance the airflow rates correctly.

Ductwork insulation and sound attenuation

The ductwork insulation should be checked and it should be assessed whether sound attenuation needs to be improved. The exhaust air duct must be insulated against condensation inside the vapour barrier. Attention should also be paid to the insulation of the exhaust air duct in general.

Unit dimensions

Check the dimensions of the existing unit and make sure the new unit will fit in its place. Sufficient space must also be left for installation and maintenance.

Installation

Airfi Refit is easy to install thanks to the low-profile connection module, which forms an integral part of the unit body. The module is installed in the ductwork first, after which the unit is lifted into place. No separate ceiling mounting bracket is required. If necessary, the unit can also be wall-mounted.

Unit handedness and ducts

Check the handedness (R/L) of the existing unit and the number and size of the ducts. Also check the airflow rates. Selecting the handedness: Check the duct locations and dimensions. Note: R/L designations may vary between manufacturers.

Connection to building automation

Airfi Refit can be connected to most building automation systems, allowing you to get the full benefit from your air handling unit. When connected to a network, the unit can also be easily controlled using the app and connected to Airfi Cloud service.

Condensate

The new unit has a higher heat recovery efficiency, so it produces more condensate than the previous unit. Make sure the condensate is properly drained.

Hydronic post-heating coil

Some existing air handling units may have a hydronic post-heating coil, but Airfi Refit no longer requires one thanks to its high energy efficiency.

Unique Warranty

Airfi grants a two year standard warranty to the buyer of air handling units manufactured after 1st of March, 2024, starting from the date of delivery. As an extended warranty, Airfi grants a four year warranty on the specified limited parts of the unit, starting from the end of the above-mentioned two year standard warranty.

Warranty terms