Kgr 420 heat supply systems heating

The Marzahn-Hellersdorf district office in Berlin in Germany from Europe region had released this tender for Kgr 420 heat supply systems heating The existing buildings are two identical MUR small schools mobile teaching units These are assigned to the Konrad Wachsmann School Both MUR buildings were built as three-story buildings with no basement between 1993 and 1995 The The approximate dimensions of the H-shaped floor plans are each approx 27 34 x 23 42 m The construction took place in Prefabricated construction consisting of wall panels and ceiling panels in large panel construction The MUR buildings are accessible via the west facades The main entrance takes you directly to the respective stairwell The stairwell accesses the ground floor the 1st floor and the 2nd floor OG The rooms on each level are accessed via large corridors The The surrounding walls of the stairwells and the staircases are solid All heating pipes and all radiators in the building are completely routed to the transfer connection points dismantled The dismantling of the pipe insulation is due to the expected load pollutants after decontamination by building construction The heating load of the building was calculated according to DIN EN 12831 based on the U-values to be handed over The following room temperatures were assumed for the calculations Type of room use Temperature C Classrooms teachers rooms 20 2 corridors stairwells 15 Equipment rooms technology 15 WC s 20 Non-permanent rooms 15 The minimum air change for natural ventilation was set at 0 5 times h for all rooms After These specifications result in a standard building heating load of approx 65 kW for both houses together Heat is supplied via the existing local heating supply from the main school building The The connection points performance limit are the respective earth lines in the HA rooms MUR 11 and 13 The distribution of the heating energy required for space heating is done using a mixing circuit for each MUR building implemented in the respective house connection room Steel pipe is used in the welding process as the material for the connections of the listed system parts Panel radiators are used The system temperature for the static heating is planned to be 65 45 C The radiators are equipped with thermostatic valves thermostatic sensor element with frost protection function as well equipped as an authority model that can be limited and blocked All heating pipe areas are designed to minimize heat losses in accordance with the Building Energy Act GEG insulated In central accessible areas there is also a casing made of galvanized sheet steel intended as mechanical protection When crossing fire compartment boundaries the fire compartment is partitioned off Pipes according to MLAR with appropriate qualification with tender notice no. ZVB25190 published on 06 Nov 2025. The tender expired on 08 Dec 2025. This tender is sourced from Vergabe and is eligible for suppliers interested in District-heating mains construction work, Heat-transfer station construction work, District-heating plant construction work. Interested bidders can obtain further information including complete bid documents or ways to participate by registering on Tender Impulse and referencing via Tender Impulse ID 10069769.