Tenders Are Invited For Construction Of External Central Heating, Water Supply And Hot Water Installations With External And Internal Gas Installation And Reconstruction Of Rooms Into Gas Boiler Rooms In Dormitory, School And Office Buildings In Dowspuda

The Subject Of The Contract Is The Construction Of An External Central Heating, Water Supply And Hot Water Installation. With External And Internal Gas Installation And Reconstruction Of Rooms Into Gas Boiler Rooms In Dormitory, School And Office Buildings In Dowspuda. Description Of The Existing Heat Sources Supplying The Buildings Under Development With Heat: In The Boiler Room There Are Four Heitzmann Primas Hs 110-P Lambda Control Boilers And An Oil Boiler. Biomass Boilers Will Remain As A Reserve Along With Chimneys And Foundations. Gas Boilers For Natural Gas Will Be Installed In The Boiler Room Next To The Existing Boilers. Heat Sources - The Following Devices Will Be Located: 1. Designed Gas Boiler House For The Needs Of The School Building In Rooms Adapted To The Needs Of The Boiler House With A Capacity Of 2X120kw Gas Condensing Boilers For The Needs Of Heating And Preparation Of Hot Water. + Water Heater 300L2. Designed Gas Boiler House For The Needs Of The School Dormitory Building In The Premises Of The Existing Biomass Boiler Room With A Capacity Of 2X120kw Gas Condensing Boilers For Heating And Hot Water Preparation + Existing Water Heater 500 L (Used From The Existing Biomass Boiler Room) 4. In The Existing Oil Boiler Room, Which Remains As A Reserve Source, An Additional Semi-Permanent Fire Extinguishing Device For The Fuel Depot Should Be Installed. Gas Installation In Boiler Rooms. It Is Planned To Supply Gas To Gas Condensing Boilers: • Power 2X Q=20-120 Kw In The Dormitory Boiler Room - Boiler Room No. 1 • Power 2X Q=20-80 Kw In The Room In The Office Building - Boiler Room No. 2 • Power 2X Q=20 -120 Kw In The School Room - Boiler Room No. 3Location Of The Boiler Room. • The Designed Boiler Room For The Dormitory Is Located In The Place Of The Existing Biomass Boiler Room, Which Will Be Reduced By Separating The Room. • The Designed Boiler Room For The Needs Of The Guardhouse Is Located In The Place Of The Current Office Space Adapted For The Needs Of The Boiler Room. • The Planned Boiler Room For The School Is Located In The Place Of The Existing Boiler Room. Boiler Rooms Will Be Located In Rooms Specially Separated And Intended Only For Installed Boilers. These Rooms Will Be Adjacent To The External Walls Of The Building And Will Be Located On The First Above-Ground Storeys. Classification Of Buildings (Boiler Rooms) - Separation Of The Boiler Room As Separate Fire Zones. In Order To Avoid Considering The Requirements For The Remaining Parts Of The Buildings And Avoid Adapting Them To The Applicable Technical And Construction Regulations, Gas Boiler Rooms Will Be Separated As Separate Fire Zones Classified As Pm Zones With A Fire Load Density Of Up To 500 Mj/M2. These Zones Will Be Separated From The Rest Of The Buildings By Fire Separation Walls And Ceilings With A Fire Resistance Class Of At Least Rei 60 (For Dormitory Boiler Rooms With Walls In Rei 120 Class), And Closed With Doors In Fire Resistance Class Of At Least Ei 30 (For Dormitory Boiler Rooms In Class Ei 30) 60). The Dormitorys Boiler Room Is Located Outside Its Building And Is Covered With A Flat Roof With A Fire Resistance Class Of At Least Re 30. Installation Passages In The Walls And Ceiling Of The Fire Separation Will Be Protected In The Fire Resistance Class Of At Least Ei Of These Elements. The External Walls Of The Dormitory Boiler Room At The Connection Point At Right Angles With The External Walls Of The Dormitory Building, At A Length Of At Least 4.0 M From The Connection Of The Walls, Will Meet The Requirements For Fire Separation Walls, I.E. They Will Have A Fire Resistance Class Of At Least Rei 120 With Thermal Insulation Non-Combustible Material. On The Other Hand, The External Walls Of The Other Boiler Rooms At The Connection Point With The Adjacent Zones Will Have In The Façade, At The Connection With The Fire Separation Walls, Vertical Stripes At Least 2 M Wide And Fire Resistance Class Ei 60, Made Of Non-Combustible Material. Gas Boilers With Accessories Working For The Needs Of Central Heating, Process Heat And Hot Water Preparation. Boiler Room No. 1 In The Dormitory Building. Ventilation Q=184 450 W - Average Heat Demand For Hot Water - Q=32,000W A Boiler Room With Two Wall-Mounted Condensing Gas Boilers With A Thermal Power Of 20-120 Kw Was Designed. A Boiler With A Total Power Of Q=240Kw. Modulating Burner. In Order To Prepare Hot Water, A Hot Water Heater Has Been Designed. With A Capacity Of V=500L. Central Heating Installation Order Secure With Diaphragm Expansion Vessels And Safety Valves. The Boilers Should Be Hung On The Wall And The Expansion Vessel And The Tank Should Be Placed On The Floor. Exhaust Gases From Each Boiler Will Be Removed Through A Concentric Chimney - A Standard Solution Used For Gas-Fired Boilers. The Flue Should Be Made Of Stainless Steel With Insulation, The Chimney Should Be Made Of Steel - A Double-Coat, Concentric Stainless Steel Chimney With A Height Of 3.5 M With A Cleaning Hole And A Droplet Eliminator, Fixed To The Wall Of The Building With Clamps. Heating Cables In The Boiler Room Should Be Made Of Black Steel Pipes According To Pn/H-74219 Joined By Welding. After The Assembly Is Completed, The Conduits Should Be Flushed And Then Tightness Tests For A Pressure Of 0.45 Mpa And A Test Run Should Be Carried Out. After The Pressure Test And Start-Up, The Pipelines Should Be Cleaned To The Third Degree Of Purity And Painted With Anti-Corrosive Paint Resistant To High Temperatures. All Pipelines And Manifolds Should Be Insulated With Polyurethane Foam Lagging In A Pvc Jacket. Boiler Rooms Are Not Classified As Potentially Explosive. The Boiler Room Is A Separate Fire Zone And Is Separated From The Adjacent Rooms By Building Partitions With A Fire Resistance Of At Least 60 Minutes. For Walls And Ceilings. Doors Should Be Made Outward Opening Equipped With Self-Closers With A Fire Resistance Of 30 Minutes. 100 Cm Wide Inside The Wall. Room Ventilation Boiler Room: -Supply 5Cm2 Per 1Kw -Exhaust 0.75M3/H Per 1 Kw Of Installed Boiler Power. Boiler Room No. 2 In The Office Building. Ventilation Q=184,450 W Kordegarda Pacynek Building Q=79,000 W Office Part Of The Staff Building Q=7,660 W - Average Demand For Heat Power For Hot Water - Q=31,000W A Boiler House With Two Condensing Wall-Hung Gas Boilers With A Thermal Power In The Range Of 20-80 Kw (Qnom=75Kw) Was Designed, A Boiler With A Total Boiler House Power Of Qmx=160Kw (Qnom=150Kw). Detailed Description As A Source Of Heat, 2 Gas Boilers With A Gas Burner With A Thermal Power Of 20-80 Kw With A Modulating Burner Were Designed. In Order To Prepare Hot Water, A Power Supply For The Hot Water Preparation System With A System Of Heat Pumps And Electric Boilers Located In A Container At The Kordegarda Building Was Designed. Secure With Diaphragm Expansion Vessels And Safety Valves. Boilers Should Be Hung On The Wall Or Placed On The Floor, And The Expansion Vessel And The Tank Should Be Placed On The Floor. Exhaust Gases From Each Boiler Will Be Removed Through A Concentric Chimney - A Standard Solution Used For Gas Boilers. The Flue Should Be Made Of Stainless Steel With Insulation, The Chimney Should Be Made Of Steel - A Double-Coat, Concentric Stainless Steel Chimney, 3.5 M High, With A Cleaning Hole And A Droplet Eliminator, Fixed To The Wall Of The Building With Clamps. Heating Cables In The Boiler Room Should Be Made Of Black Steel Pipes According To Pn/H-74219 Joined By Welding. After Completing The Assembly, The Pipes Should Be Flushed And Then Leak Tests For A Pressure Of 0.45 Mpa And A Test Run Should Be Carried Out. After The Pressure Test And Start-Up, The Pipelines Should Be Cleaned To The Third Degree Of Purity And Painted With Anti-Corrosive Paint Resistant To High Temperatures. All Pipelines And Manifolds Should Be Insulated With Polyurethane Foam Lagging In A Pvc Jacket. Boiler Rooms Are Not Classified As Potentially Explosive. The Boiler Room Is A Separate Fire Zone And Is Separated From The Adjacent Rooms By Building Partitions With A Fire Resistance Of At Least 60 Minutes. For Walls And Ceilings. Doors Should Be Made Outward Opening Equipped With Self-Closers With A Fire Resistance Of 30 Minutes. 100 Cm Wide Inside The Wall. Room Ventilation Boiler Room: - Supply 5Cm2 Per 1Kw - ​​Exhaust 0.75M3/H Per 1 Kw Of Installed Boiler Power. Heat Meters And Water Meters Were Designed For The Needs Of The Office And The Guardhouse In Order To Settle The Amount Of Water And Heat Drawn. Boiler Room No. 3 In The School Building Gas Boiler Room: - School Building + Gym + Cloakroom (146.30M2) Q=181,710W - Average Demand For Heat Power For Hot Water - Q=20,000W A Boiler Room With Two Condensing Wall-Hung Gas Boilers With A Thermal Power In The Range Of 20-120 Kw Was Designed, A Boiler With A Total Power Of Q=240Kw. Detailed Description As A Source Of Heat, 2 Gas Boilers With A Gas Burner With A Thermal Power Of 20-120 Kw With A Modulating Burner Were Designed. In Order To Prepare Hot Water, A Hot Water Heater Has Been Designed. With A Capacity Of V=500L. Central Heating Installation Order Secure With Diaphragm Expansion Vessels And Safety Valves. The Boilers Should Be Hung On The Wall And The Expansion Vessel And The Tank Should Be Placed On The Floor. Continued According To Swz - Iv. Order Description