Alta is a ventilation unit for residential and other smaller spaces. Alta is specially designed for spaces where there is no dedicated location for the unit. The unit can easily be placed
for instance in a folded ceiling with the hatch downwards for easy access or in a wardrobe. The Alta unit can be connected to a cooker hood in the kitchen. No separate extract air duct is needed for the hood and you will save space where it is never enough. The unit’s simple but ingenious structure and low pressure drop ensure a cheap and safe operation.

General information

Air volume flow:  50…290 m³/h                                                                                                                                                                                                                                                                                    EcoDesign classification: A                                                                                                                                                                                                                                                                                        Reference flow rate according to EcoDesign directive (50 Pa): 203 m³/h
Pressure difference: 15 to 100 Pa
Leakage external: < 5% (test pressure 300Pa)
Leakage internal: < 5%
Duct size: Ø 160 mm
Weight: 40 kg
Standard filters: ISO ePM1 70 % / ISO Coarse 90 % (F7/M5)
Filter dimensions (WxHxD): 293 x 225 x 28 mm
IP class: IP44 (external control IP20)
Condense connection: ¼” internal thread
Nominal voltage: 230 V
Nominal current: Motors 2,4 A total, electrical after heating 3,5 A

Fans

Supply and exhaust air fan type: Ebm-Papst
Supply and exhaust air motor type: G3G146-ED19-10
Nominal voltage: 230 V (AC), EC-type with internal electronics
Type of fan blade: Radial forward
Nominal power: 118 W
Acoustical data: 65 dB(A) DIN 45635-1 ISO 3745
Fan control eWind control: 4 step (parallel running, possibility to drive supply -20% lower to +10% higher than exhaust). Each step can be adjusted within 20% scale.

Heat recovery

Heat exchanger type: Rotating heat exchanger
Heat exchanger material: Aluminium
Heat exchanger surface: 28 m²
Heat exchanger dimensions: 240 x 200 mm (60 μ)
Heat exchanger motor: 5 W
Ventilation unit annual temperature efficiency (EN 13141-7:2010): 77 %
Supply air annual heat recovery efficiency* (EN 16798-3:2017): 90 %
Extract air annual heat recovery efficiency* (D5:2012): 77 %
* supply air +18°C, extract air +21°C, exhaust air temperature limit -7°C

Other information

Material inside cover: Steel sheet, zinc coated
Material outside cover: Steel sheet, zinc coated, powder painted
Standard electric after heater efficiency: 800 W