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Blauberg Solo A35 S4 Pro R

Wall ventilator with heat and energy recovery. Maximum air flow up to 46 m³/h.
EAN codeEAN4058448062575
  • Description
  • Characteristics
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  • Dimensions
  • Technical data
Wall ventilator with heat and energy recovery. Supply clean fresh air to the premises. Remove stale extract air from the premise. Clean the air of dust and insects.Prevent penetration of excessive humidity and appearance of mould. Protect against outdoor noise. Recover heat and provide humidity balance inside.Reduce the heating costs in winter and air conditioning costs in summer. Low energy demand.
Air is supplied or extracted by a reversible axial fan with EC motor. Due to EC technology the fan is distinguished with low energy demand. The motor has overheating protection and ball bearings for longer service life. Two built-in filters with total filter class G3 are used to clean supply and extract air flows. The filters ensure fresh air cleaning of dust and insects and prevent the ventilator parts from soiling. The filters are cleaned either with a vacuum cleaner or flushed with water.
The high-technology ceramic energy heat exchanger with recovery efficiency up to 85 % is used for extract air heat energy recovery and supply air heating.  



Energy is recovered due to reversing operation of the ventilator, which consists of two cycles: CYCLE I. As warm stale extract air flows through the ceramic heat exchanger, it heats up and moisturizes the heat exchanger. In 70 seconds as the ceramic heat exchanger gets warmed the ventilator automatically switches to Air Supply mode. CYCLE II. Fresh, cold intake air from outside flows through the ceramic heat exchanger, absorbs accumulated moisture and is heated to the room temperature. In 70 seconds as the heat exchanger gets cooled down, the ventilator switches to Air Extract mode and the cycle is renewed.The Air Supply and the Air Extract modes are switched every 70 seconds.    
Parameter Solo A35 S4 Pro R
(1 speed)
Solo A35 S4 Pro R
(2 speed)
Measurement unit
Speed I II -
Voltage 230 230 V
Current 0.031 0.034 A
Power 1.36 1.89 W
Maximum air flow 8 13 l/s
SFP 0.33 0.30 W/l/s
Maximum air flow 30 46 m³/h
Sound pressure level at a distance of 3 m 27 32 dBА
Temperature of transported air -15...+40 -15...+40 °С
Ingress protection rating IP24 IP24 -
Heat recovery efficiency ≤85 ≤85 %
Heat exchanger type сeramic сeramic -
Documents archieve
Documents archieve
Solo A35 S4 Pro R - data sheet (pdf 908.65Kb)
Solo A35 S4 Pro R - image (png 342.17Kb)
Solo A35 S4 Pro R - energy label (pdf 54.98Kb)
Solo A35 S4 Pro R - specification (pdf 34.23Kb)
Solo A35A S4 Pro R/ Solo A35 S4 Pro R - user's manual (pdf 1.85Mb)

Model Dimensions [mm]
ØD B B1 L L1 L2
Solo A35 S4 Pro R 103 150 153 305–380 30 84
Technical data
Technical data
Parameters Solo A35 S4 Pro R
Speed I II
Voltage [V/50 (60) Hz] 230
Power [W] 1.36 1.89
Current [A] 0.031 0.034
Maximum air flow [m³/h (l/s)]  30 (8) 46 (13)
SFP [W/l/s] 0.33 0.30
Transported air temperature [°C] -15...+40
Sound pressure level at 3 m distance [dBA] 27 32
Heat recovery efficiency [%] up to 85
Heat exchanger type Ceramic
Ingress protection rating IP24