Tenders of Offizielle Bezeichnung Bundesrepublik Deutschland, Vertreten Durch Den Landesbetrieb Bau Und Immobilien Hessen, Zentrale Vergabe

Public tender Vob/a metal construction work (DIN 18 360); low and medium voltage systems up to 36 kV (DIN 18 382); ventilated facades (DIN 18 351); glazing work (DIN 18 361); facade work, windows ... Multi-metal construction work (DIN 18 360); low and medium voltage systems up to 36 kV (DIN 18 382); ventilated facades (DIN 18 351); glazing work (DIN 18 361); facade work, windows and doors, PV system for the future weather radar tower of the DWD. 255 m² substructure, 152 pieces of PV facade elements, 7 external and internal doors, 6 window elements.

Public tender Vob/a heating systems and central water heating systems (DIN 18 380); delivery and installation of a pellet heating boiler system (600 kW) in a container, associated chimney system and pellet silos, buffer storage system, incl. piping and fittings

Public tender Vob/a drilling work (DIN 18 301); work to expand boreholes (DIN 18 302); construction of groundwater measuring points on the site of the Major-Karl-Plagge barracks. Soil contamination with Pfas was detected in the area of a fire training house and in the area of the fire station. Additional tests are to be carried out to check whether the pollutants have already reached the groundwater approx. 15 to 20 meters below the ground. The area on which the construction site is located is fenced in and partially sealed off by buildings and driveways. Other uses will take place on the site while the work is taking place. As part of the current investigation phase, the installation of two groundwater measuring points on the barracks site is planned (single measuring points). 4-hour short pumping tests are to be carried out at the groundwater measuring points to be set up. The site of the Major Karl Plagge barracks is a military security area. Personnel and vehicles must be registered to enter the site. Daily working hours are limited to 7 a.m. to 4 p.m. The current list of services includes drilling and expansion work, rinsing and carrying out the pumping tests. Creating 2 single measuring points, final depth approx. 25 m U. Gok. Carrying out two 4-hour short pumping tests. A DVGW certificate in accordance with DVGW worksheet W 120 is to be submitted with the offer.

Public tender Vob/a Air conditioning systems (DIN 18 379); 410 Wastewater, water, gas system Wastewater systems - New construction of a pipe network for condensate drainage from air conditioning units made of PVC-u, total pipe length ... Multi-room air conditioning systems (DIN 18 379); 410 Wastewater, water and gas systems Wastewater systems - New construction of a pipe network for condensate drainage from air conditioning units made of PVC-U, total pipe length approx. 35 m, nominal widths DN 25 to DN 50 - Outdoors with pipe heating, approx. 15 m - Free outlet on roof surface - 2 x fire protection partitions for PVC-U pipes 50 mm Water systems - No water systems are planned 420 Heat supply systems Heat generation systems - 1 x electric wall convector 1500 W as frost protection heating in the technical room 430 Air conditioning systems Ventilation systems - Radial fan for exhaust air DN 100 with motorized control flap, insert volume flow controller - Air filter box EPM1 Ø100mm - Duct smoke detector - Ventilation duct for duct-bound air conditioning of the radome via a precision climate cabinet made of steel, duct parts approx. 27 m², molded parts approx. 12 m² - ventilation pipes for fresh air for radome air conditioning, approx. 6 m spiral-seam pipe Ø100 mm - thermal insulation completely made of flexible elastomer foam 19 mm, approx. 40 m² - 2 ventilation grilles 500x400 mm for floor installation, 2 weather protection grilles Ø100 mm for facade partial air conditioning systems - precision air conditioning unit for radome air conditioning with high requirements for temperature accuracy and dehumidification, nominal cooling/heating output 10.7 kW/7.5 kW, electric heating, cooling via condenser - two split air conditioning units each with nominal cooling/heating output 6.8/7.5 kW as a redundancy circuit - each outdoor unit heated with mounting system and condensate collection tray - refrigerant piping made of copper pipe, total line length approx. 110 m, nominal diameters Ad 10 mm Up to Ad 28 mm, including diffusion-tight thermal insulation, approx. 21 m plus sheet metal cladding in the outdoor area - 6 shut-off valves nominal widths Ad 10 mm up to Ad 28 mm - 6 pieces of fire protection partition for refrigerant lines