Supply and installation of a heat-recovery ventilation unit in a sports hall

Summary

The procurement covers the supply, installation, connection and commissioning of a heat-recovery ventilation system and related components for a sports hall at the Zvaigznīte preschool in Valdlauči, Latvia. The procurement is not divided into lots, so the tenderer must bid for the entire scope and may submit only one financial offer. The system must provide supply and extract airflow of at least 496 m³/h, heat-recovery efficiency of at least 86%, external static pressure of at least 50 Pa, control automation, ductwork and accessories, electrical connection, commissioning, air balancing and two wall openings. The contract must be completed within one month of signature, with a minimum 24-month product warranty. The submission deadline is 22 September 2026. The lowest price is the only award criterion.