Tenders Are Invited For Energy Transformation Of Residential Buildings To Reduce Low Emissions In The Radków Commune - Building At Ul. Piastowska 47 In Radków, Divided Into Parts
Tenders Are Invited For Energy Transformation Of Residential Buildings To Reduce Low Emissions In The Radków Commune - Building At Ul. Piastowska 47 In Radków, Divided Into Parts
1. Part No. 1. Modernization Of The Heat Source.1.1. Scope Of Work: 1) Ground Heat Pump. Ground Heat Pump: Nominal Power 35 Kw, Brine/Water Type.2) Ground Source. 8 Vertical Wells, 90 M Each, Total Length 720 M, Pe100-Rc Probe Pipes Ø40 Mm, Double U, Thermally Conductive Filling (Silica Bentonite), Medium: Propylene Glycol Solution 30%, Spacing Between Wells: Approx. 8 M, In Accordance With Pzt, Each Well With Shut-Off And The Possibility Of Flow Balancing.3) Well Prefabricated Pe Distributor, Dia. 1200 Mm, Depth 1.8 M, Equipped With Manifolds And Balancing Valves. All Work Related To The Lower Source Of The Heat Pump Should Be Carried Out In Accordance With The Guidelines Of The Manufacturer Of The Pipes Used. The Designed Pipelines Should Run Min. 20-40 Cm Below The Frost Zone, Lay The Run-In Pipelines At A Distance Of Not Less Than 70-80 Cm From Each Other And From Other Pipelines. In Addition, Special Attention Should Be Paid When Filling The Hole Ring To Ensure It Is Complete, Without Any Gaps Or Gas Spaces. The Filling Should Be Done With A Liquid Filling Compound. Purpose Of The Protective Pipe: Inserting And Routing The Cables Supplying The Brine Circuit (A Pair Of Supply And Return Pipes). Tightness And Protection: The Protective Pipe Will Be Sealed At The Inlets And Outlets, And The Space Between The Pipes Will Be Filled With A Flexible Material Ensuring Protection Against Water Infiltration.4) Upper Source (Central Heating Installation). Hydraulic System: Hydraulic Coupling + 500 L Buffer, Heat Pump Supply Temperature: 40–55 °C, Dhw: Dhw: A Central System For Preparing Hot Utility Water Is Planned, Based On A Common Dhw Tank. 750 L For All Residential Premises, Powered By A Ground Heat Pump.5) Accompanying Installations. Brine Circuit: Circulation Pumps With An Inverter, Expansion Vessel, Safety Valves, Automatic Air Vents. Central Heating Circuit: Circulation Pumps, Mixing Valves, Weather Automation, Hydraulic Coupling. Security: Temperature Sensors, Pressure Switches, Flow Meters, Valves Shut-Off. Electricity: 400 V Heat Pump Power Supply, Residual Current Protection, Dedicated Switchgear. Central Heat Pump Controller Possibility Of Remote Monitoring (Bms/Gsm1.2. The Contractors Costs Also Include: 1) Preparation Of A Safety And Health Protection Plan, In Accordance With The Requirements Of The Act Of July 7, 1994 Construction Law; 2) Preparation Of Geodetic And As-Built Documentation, 3) Own Assurance Surveying Services During The Implementation Of The Subject Of The Contract;4) Preparation And Approval Of A Geological Works Project With The Competent Authority.5) Preparation Of As-Built Documentation For A Photovoltaic Installation For Fire Protection Acceptance.2. A Detailed Description Of The Subject Of The Order For Part No. 1 Is Specified In The Design Documentation And Bill Of Quantities - Constituting Attachments To Swz.2.1. The Contractor Should Familiarize Himself With The Entire Project And Stwiorb So That During Implement
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