Heat recovery unit SPC DucoBox Energy Premium 325 2ZH Left 1

The SPC DucoBox Energy Premium 325 2ZH Left 1 is a mechanical heat recovery ventilation unit designed for energy-efficient air exchange in residential and small commercial buildings. The unit provides balanced supply and extract airflow with integrated heat recovery to lower heating losses while maintaining indoor air quality. Its compact housing and left-oriented duct connections make it suitable for installations with limited space and specific duct routing requirements.

Advantages

The unit recovers heat from exhaust air, reducing heating demand and improving overall energy efficiency. Its balanced ventilation ensures continuous fresh air supply and controlled extraction, helping to maintain comfortable indoor conditions. Compact dimensions and a left-side duct layout simplify installation in confined plant rooms or service shafts. The design supports straightforward maintenance and filter replacement to keep ventilation performance consistent.

Suitable for

• Residential apartments and single-family homes
• Small offices and commercial spaces
• Renovation projects where space is limited
• Installations requiring a left-oriented duct connection

Key specifications

• Balanced supply and extract airflow with heat recovery
• Compact unit dimensions for space-constrained installations
• Left-oriented duct connections to match installation layout
• Designed for continuous ventilation and indoor air quality management

How to use

Install the unit in a suitable technical space with access for connection to supply and extract ducts aligned to the left orientation. Connect the unit to the building ductwork and electrical supply according to local regulations and wiring diagrams provided by the manufacturer. Set the ventilation rate according to the building’s ventilation needs and occupancy. Regularly check and replace filters and inspect the heat exchanger and fans to ensure proper operation. Follow local building codes and commissioning procedures when integrating the unit into the overall HVAC system.

Usage recommendations

For best results, commission the ventilation rates based on room sizes and occupancy, ensure periodic filter maintenance, and perform annual inspection of the heat recovery core and fans. Maintain clear access to the unit for service and avoid obstructing duct inlets and outlets.