KERS Premium units are designed to perform the following functions in each single room:

• Provide fresh renewal air taken from outside the building, with airflow up to 100 m³/h.
• Recover up to 97% of the heat from stale extracted air to warm incoming air in winter and cool it in summer before it enters the room.
• Filter both incoming outdoor air and extracted indoor air thanks to G3 filters on both sides.
• Purify the air thanks to the negative ion ionizer, always active when Kers Premium is switched on.
• Reduce unwanted outdoor air infiltration thanks to the automatic wind damper.

The units are intended for residential and light commercial applications, especially where centralized ventilation systems are not considered necessary. They can be installed through perimeter walls and are therefore particularly suitable for refurbishment and partial renovation of rooms affected by mould caused by insufficient ventilation.

Since they work in alternating mode, 50% of the time in extraction and 50% in supply, the effective renewal airflow is approximately half of the nominal maximum airflow.

STAINLESS STEEL HEAT EXCHANGER: THE TRUE PLUS OF KERS PREMIUM

Compared to more traditional solutions, the stainless steel heat exchanger of Kers Premium has been designed to deliver superior build quality and very high heat recovery performance. Its rectangular-cell structure allows a larger exchange surface for the same dimensions and helps improve overall heat recovery efficiency.

In addition, stainless steel ensures higher mechanical strength, better resistance to corrosion and pollutants, longer durability and more stable performance over time. It is a technical choice that makes Kers Premium particularly suitable for those looking for a more advanced decentralized ventilation unit without sacrificing easy installation and everyday comfort.

KERS PREMIUM AND KERS+: QUICK COMPARISON

The unit is equipped with a low-consumption EC motor fan, able to reverse the airflow inside the heat exchanger, and operates in two phases:

Phase 1: extraction

The fan extracts warm air from the room and pushes it outside through the heat exchanger. During this phase, the stainless steel exchanger stores the heat contained in the exhaust air.

Phase 2: supply

The fan reverses the airflow and draws cold air from outside. In contact with the heat exchanger, the incoming air is pre-heated before entering the room.

The standard remote control allows you to:

• Select one of the four fan speeds according to the desired air renewal.
• Automatically switch ventilation to maximum speed when humidity exceeds the set level.
• Activate automatic night attenuation.
• Set an extraction-only boost at maximum speed for 30 minutes, to quickly remove unpleasant odours.
• Use the unit in extraction-only mode or supply-only mode.

For installation on inaccessible external walls, special flexible grilles for Kers (optional) are available. They can be installed completely from inside the room, without the need for scaffolding or external lifting platforms. The grilles, supplied as accessories for Kers Premium, are available in white finish or in the traditional copper-effect finish, so as not to alter the aesthetics of the building.

The grilles for Kers Premium 25 are the following:

The grilles for Kers Premium 60 are the following:

The grilles for Kers Premium 100 are the following:

Technical drawing KERS Premium 25

Technical drawing KERS Premium 60

Technical drawing KERS Premium 100

Technical data

Airflow and noise levels