HumidityCO₂Condensation
The problem
Closed windows keep everything in.
Modern buildings and new windows are airtight. Moisture, CO₂ and pollutants stay in the room. Opening the windows in winter throws the heat out and lets in noise and dust.
Technology
How the air changes without losing the heat.
The copper
Air goes out and comes in at once, never mixing.
Stale room air flows through the copper exchanger's channels and leaves its heat in the copper. In the neighbouring channels, fresh outdoor air picks that heat up. Copper's natural antiseptic properties stop bacteria and microbes spreading from the unit.
The result
At 0 °C outside, air comes in at about +19 °C.
Room air at +20 °C leaves at about +1 °C, because it has left its heat in the copper. Outdoor air at 0 °C comes in warmed to about +19 °C. That's up to 98% efficiency.
HumidityCO₂Condensation
Four functions
So it runs all year, winter included.
Mini-heating
Protects the heat exchanger from freezing in the cold season and raises the incoming air by 3–4 °C in night mode.
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Winter mode
Defrosts and warms the system after a stop and before the cold season, so frozen moisture can't damage the fans. Use it together with Mini-heating when it's below +4 °C outside.
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AUTO
The ventilation adjusts itself to humidity, CO₂ and air quality (VOC), depending on the configuration. Mini-heating and Winter mode switch on and off by themselves.
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AUTO PLUS
Works like AUTO, with the power capped so it stays quieter. Recommended for bedrooms and rest areas.
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The sensors
What each one measures, and which configurations have it.
CO2 eq sensor
How stale the air is from breathing. In AUTO, the ventilation steps up as it rises.
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Air quality sensor, VOC
Fumes from cleaning, cooking, furniture and paint.
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Air humidity sensor
Air humidity, the cause of condensation and mould.
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Temperature sensor 1
Outgoing air temperature before recovery.
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Temperature sensor 2
Incoming air temperature after recovery.
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Temperature sensor 3
Incoming air temperature during recovery.
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Atmospheric pressure sensor
Atmospheric pressure.
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Window, PRANA or a central system?
Three ways to change the air.
The maker
PRANA invents and makes patented energy-saving technologies. For 18 years it has offered energy-efficient ventilation around the world. Today it is releasing the fifth generation of its recuperators with a copper heat exchanger, tested in the manufacturer's own climate laboratory. PRANA is based in Lviv, Ukraine.
- 18
- years of experience
- 5
- generations of recuperators
- A+
- energy class, by configuration
- CE
- meets EU standards
CGWe're available
Breathe easy.
We'll propose the model and number of units, free of charge.