Heating System Tender

• Country: Germany
• Summary: Heating System
• DET Ref No: 140213361
• Deadline: 25 May 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: 40/2026
• Purchaser's Detail:
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• Description:
• Based on an outside temperature of -11.3 °C, a reduced heating load of 114.3 kW was determined for the renovated building in accordance with DIN EN 12831. The future heat supply will be a closed two-pipe system in accordance with DIN EN 12828 with a lowered System temperature of 60/40 °C operated. The central distribution in the basement will be completely dismantled and rebuilt, with the existing heating circuits being connected to new distributors with highly efficient, speed-controlled pumps. The Control is dependent on the outside temperature. For safety reasons, a diaphragm expansion vessel and a full-stroke safety valve (DN 32/40, response pressure 3.5 bar) must be provided. In the hotel rooms as well as the office and meeting rooms The existing radiators will be completely dismantled. In the future, heating and air conditioning will be carried out there via an air conditioning system with central outside air treatment and decentralized induction ventilation devices. This highly efficient system enables needs-based thermal treatment of the preconditioned supply air via integrated heat exchangers and room temperature controllers. The exhaust air is routed via the assigned bathrooms, which are also equipped with new towel radiators become. In the hallways, the reception and the toilet facilities on the upper floor, the existing radiators will be replaced by modern compact radiators including new thermostatic valves and lockable return valves. Due to assembly in progress During operation, all new strand and connection lines are made of copper pipe. All distribution and branch lines must be insulated with aluminum-clad mineral fiber wool (WLG 0.035) in accordance with the GEG; in freely accessible areas are additional Isogeno shells are to be provided. Particular attention is paid to fire protection: Wall and ceiling ducts are equipped with fire protection sleeves or rock wool according to their classification (especially F90 on the basement ceiling).
• Documents:

 Tender Notice