A total of six acoustic enclosures for six tabletop Heat Pump evaporator modules were created for this project. Since the heat pumps are in series, the air inlet and the air outlet have been moved on both sides.
The cold air is blown out on the side opposite the air outlet so that an air short circuit between the air inlet and the air outlet is impossible. The air chambers are separated by a deflector plate in the middle of the hood. The air outlet going up is deflected by 90° and thus the airborne sound is broken.
The sound reduction on all sides is around 19 dB (A) over the entire frequency band.
The hoods each have the size of: 1'700 x 1'000 x 1'700 mm (L x W x H) and are completely made of aluminum and then powder-coated in RAL color 9003. The systems are freely accessible for service and maintenance work via service doors that are installed around the systems.
The sound hoods were delivered to the construction site in AMSTERDAM pre-assembled.