PPR 26

Document * .doc; 8 pp .; CHARACTERISTICS OF SYSTEMS TO BE INSTALLED Internal sanitary systems were designed for a specialized laboratory building and a building for visitors at the address: St. Petersburg, .................. Heating system - two-pipe vertical with bottom wiring and dead-end movement of water in highways . The coolant for the heating system is water with parameters T1 = 95 ° C; T2 = 70 ° C. For the heat supply system - water with parameters T1 = 130 ° C; T2 = 70 ° C. According to the technical conditions, the water supply of the laboratory building and the visitors house is provided by two inputs with a diameter of 150 mm. At the entrance to the building of the laboratory building, water-measuring units are installed according to the standard drawings CIRV 02.00.00.00, l. 88, 89. The water supply scheme is separate - drinking and fire-fighting. Guaranteed pressure in the city network 32 m.st. The system of drinking water supply is dual-zone. The second zone is provided with water from a WILO-Comfort-N-Vario COR 2 MVISE 404 / VR pump unit (2 pumps - operating and standby, 1.3 kW each, 1100 to 2750 rpm), productivity - 1.33 l / s, pressure - 19.0 m.st. ";