Public Works Department Tender

[25.7.1]Supply, installation, and commissioning of factory/site fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. 1. Thickness 0.63 mm sheet

[25.7.2]Supply, installation, and commissioning of factory/site fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. 2. Thickness 0.80 mm sheet

[25.7.3]Supply, installation, and commissioning of factory/site fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. 3. Thickness 1.00 mm sheet

Supply, Installation, Testing and Commissioning of Y-Joints for Indoor Units

Supply, installation, testing and commissioning of Powder coated Aluminium extruded Multicone ceiling square diffusers 4 way deflection with anti smudge ring ( removal core type ) for supply / return air required

Supply, installation, testing and commissioning of 16 G GSS constructed opposed blade volume control dampers complete with Brass bush and manual operating handles within ducts to be provided with suitable links, levers and quadrants for control of volume of air flow for proper air balancing

Supplying and fixing of 18 G thick Aluminium extruded powder coated Fresh / Exhaust air weather protected louvers with bird screen type i.e. louvers blade shall be at 45° inclination with blade pitch 40 mm (with Aluminium frames if required) for ventilation as per specification and sizes will be as per tender drawing mentioned

Insulation Works Supply and installation of cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated Aluminium Foil on ducts having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O and 1 as per BS 476 Part 6 and 7 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 9 mm thick for fresh air Duct

Insulation Works Supply and installation of cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated Aluminium Foil on ducts having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O and 1 as per BS 476 Part 6 and 7 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 13 mm thick

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 41.3 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 34.9 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 31 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 28.6 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 25 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 19.1 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 15.9 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 12.7 mm O.D.(insulation : 19 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 9.5 mm O.D.(insulation : 13 mm)

Sub Head -`C` : Refrigerent Piping Works Refrigerant Copper Piping All refrigerant piping shall be constructed from soft seamless upto 19.1mm and hard drawn copper refrigerant pipes for above 19.1mm with copper fittings and silver soldered joints All joints in copper piping shall be sweat joints using low temperature brazing and or silver solder. Before jointing any copper pipe or fitting, its interiors shall be thoroughly cleaned by passing a clean cloth via wire or cable through its entire length. The piping shall be continously kept clean of dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using nitrogen. After the refrigerant piping installation has been completed, the refrigerant piping shall be pressure tested using nitrogen at 32 Kg per sq.cm. Pressure shall be maintained in the system for 24 hours. The system shall then be evacuated to minimum vacuum if 700 mm Hg and held for 24 hours. Supply, fabrication, installation, testing of Inter connecting refrigerant pipe(whole of the suction and liquid line) including all fittings etc. All piping inside the room shall be properly supported on GI perforated trays including bolts and nuts, GI Threaded suspenders etc as required and all external piping shall run in covered with same GI perforated tray including bolts and nuts, painting suspenders etc as required. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with factory laminated aluminium foil on copper piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 6.4 mm O.D.(insulation : 13 mm)

Drain Piping Supply,installation, testing and commissioning of rigid heavy duty uPVC piping density 10 KG/sqcm with proper slope efficeint draining of condensate water , on existing cable tray or recessed mounted including the cost of cutting and filling chases,repairing and making good as before or surface mounted including all fixing hardware, complete with U trap, fittings, elbows, bends and supports as per specifications and duly insulated with 9 mm thick closed cell Nitril rubber with factory fabricated 7 mil cloth covered as per specifications. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with 9 MM Thick with factory laminated aluminium foil on upvc drain piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 40 mm dia

Drain Piping Supply,installation, testing and commissioning of rigid heavy duty uPVC piping density 10 KG/sqcm with proper slope efficeint draining of condensate water , on existing cable tray or recessed mounted including the cost of cutting and filling chases,repairing and making good as before or surface mounted including all fixing hardware, complete with U trap, fittings, elbows, bends and supports as per specifications and duly insulated with 9 mm thick closed cell Nitril rubber with factory fabricated 7 mil cloth covered as per specifications. The above pipe shall be with duly insulated from cross linked closed cell Oxide Acetate Foam Thermal insulation with 9 MM Thick with factory laminated aluminium foil on upvc drain piping having density 0f 30 to 33 Kg/ M³ ,having K value 0.029 W/m ° K at 40°C Deg temp and temp range of -70°C to plus 100°C and fire rating Class O as per BS 476 Part 6 from CBRI,Roorkee as per the approved specifications. Smoke and Toxicity index of material shall be passed as per IMO MSC 307 ( 88 ) 2010 Anexx 1 Pt 2.• Material shall be CFC/ HCFC free as per US EPA 5021 A(2014 ). 32 mm dia

Supply and fixing of the flexible connection constructed out of fire resistant double canvas sleeve for indoor unit/axial flow fan as per entire satisfaction of Engineer-in-Charge of work.

Supply and installation of 1 no. 20 Amp. MPCB DOL Starter for supply fan`s motor stable upto 3.75 kW, over load relay with built in single phasing protection in existing panel. The compartment cell contains an indicating lamp with MCB for on status.

Wall opening for duct and copper pipe 1mtr/500, repairing and finishing work as per entire satisfaction of Engineer-in-Charge of work.