The casing construction is in accordance with Eurovent prEN 1886 complying the following requirements.
• Casing leakage test (-400 pa)
• Casing leakage test (+700 pa)
• Casing strength (2500 Pa)
• Thermal Bridging
• Thermal Transmittance
• Filter Bypass leakage ( -400 pa)
• Filter Bypass leakage ( +700 pa)