Tenders Are Invited For Thermal Modernization Of The Communal Building - The School Complex In Gilowice

Part I Task 1: Execution Of The Solar Installation The Implementation Of The Task Consists In: 1. Installation Of A New Solar Installation On The Roof Slope Of The School Complex In Gilowice, Based On Vacuum Tubular Solar Collectors, Filled With Solar Fluid (A Water Solution Of Propylene Glycol With Inhibitors), Total Absorber Area Of ​​30.3 M2, Consisting Of Two Solar Batteries With An Absorber Area Of ​​15.1 M2 Each (Each Battery Consisting Of Five Vacuum Tubular Solar Collectors). 2. The Installation Of Collectors Has Been Planned In A Single-Row System, With Separate Connections For Each Field. Installation Of Pipelines Dedicated To A New Solar Installation Made Of Hard Copper Pipes. Installation Of Fittings Elements Ensuring The Functioning Of The New Solar Installation, I.E.: - Shut-Off Valves, - Check Valves, - Shut-Off Valve With Drain Cock, - Filling Valve, - Flow Meter, - Air Separator, - Safety Valve And Vent Valves. 3. Insulation Of Ducts With Synthetic Rubber Lagging With An Aluminum Sheet Jacket (Outside The Building) And Laminated Mineral Wool Lagging (Inside The Building). 4. Enclosing The Ducts With Light Walls Made Of Plasterboards, On A Metal Grate. 5. Execution Of A Technological Installation For The Preparation Of Central, Hot Utility Water, Based On Bivalent Heaters, Together With Regulating, Measuring And Protecting Fittings, I.E. - High-Performance Circulation Pump, - Flow Meter, - Air Separator, - Thermometers On The Supply And Return Sides, - Valves Shut-Off And Return Valves, - Filling Valve, - Drain Valve And Connection To The Expansion Vessel. (Assembly Of A Diaphragm Expansion Vessel With A Capacity Of 250 L, Taking Over The Excess Of The Working Medium Generated During The Operation Of The Installation) 6. Installation Of The Solar Controller. 7. Installation Of Solar Sensors. 8. Installation Of Hot Water Heaters.