Germany – Heating, ventilation and air-conditioning installation work – Heizung + RLT Kälte, 2024 KHK, Sanierung der Kunsthalle zu Kiel

**Brief description of heating systems:** As part of the measure, the following components will be implemented in the heating system: building supply via district heating, 1 district heating transfer station in redundant design, pump-controlled make-up device + pressure maintenance with approx. 420 kW heating capacity. Pipeline network approx. 5,200 m steel threaded pipe incl. insulation mineral wool Alukaschiert. Heating of the premises via approx. 17,000 m underfloor heating/cooling, 28 heating and cooling sails and 76 radiators. **Brief description of air-conditioning systems:** In the construction measure, the following main components and scope of services will be implemented in the trade of air-conditioning systems: 1 primary ventilation unit for the conditioning of outside air for three downstream supply air units as full air-conditioning systems with nominal volume flows of 3,500 m³/h, 5,900 m³/h and 4,900 m³/h, 1 central exhaust air system with a total volume flow of 13,500 m³/h, 1 full air-conditioning system with a volume flow of 7,600 m³/h, 2 partial air-conditioning systems with volume flows of 11,200 m³/h and 7,100 m³/h, 1 hydraulic station for a looped system (KVS) with a thermal recovery rate ηt 1:1 of 71.1%, according to EN 13053 with balanced air quantities, for heat recovery, 4 mechanical smoke extraction systems (MRA) with conveying capacities of 11,700 m³/h, 3,600 m³/h, 14,600 m³/h and 10,500 m³/h, approx. 4,600 m² air duct network in tightness class C, 110 fire dampers (BSK) and 84 variable volume flow controllers. **Brief description of refrigeration systems:** As part of the measure, the following components will be implemented for the refrigeration systems: 2 propane chillers (outdoor installation), make-up device + pressure maintenance with 270 kW cooling capacity + 275 kW free cooling capacity each. Pipeline network approx. 1,700 m steel threaded pipe incl. insulation made of elastomer foam. Cooling of the premises via approx. 17,000 m underfloor heating/cooling, 28 heating and cooling sails.