Northern Railway Tender

Supply, Installation, Testing and commissioning of black mat finish volume control collar dampers for linear grilles complete with mounting arrangement as per site requirement.

Supply, Installation, Testing and commissioning of Extruded Aluminium Section Frame/ Extruded 5 Aluminium aero foil blades type volume control duct dampers complete with PVC gears, Linkages, Levers, Fittings, supports, all accessories as per site requirements and any other item required to make the system conforming to CPWD General Specification for Heating, Ventilation and Air-Conditioning works-2017 or latest.

Supply, Installation, Testing and commissioning of thermostat for controlling temperature of OT's AHU & compatibility of same through ductable condensing unit.

Supply, Installation, Testing and commissioning of Protective Coating on the insulated ducts with 7 lagging fabric and Star bond 30-36 / equal coating conforming to CPWD General Specification for Heating, Ventilation and Air-Conditioning works-2017 or latest.

Supply, Installation, Testing and commissioning of Extruded Aluminium rectangular air diffuser without volume control dampers complete with mounting arrangement conforming to CPWD General Specification for Heating, Ventilation and Air-Conditioning works-2017 or latest.

Supply, Installation, Testing and commissioning of Expansion valve between AHU & Ductable condensing unit conforming to CPWD General Specification for Heating, Ventilation and Air-Conditioning works- 2017 or latest.

Supply, Installation, Testing and commissioning of HVAC Electrical Starter Control Panels for 10 opeartion of AHU's motor having MCB, Contractor, indication lamp, push button, auto/manual operation & interlocking with thermostat and outdoor unit conforming to CPWD General Specification for Heating, Ventilation and Air-Conditioning works-2017 or latest.

Supply, installation, testing, commissioning of Air Conditioner "Cassette type capacity 4.0 Ton" with supply of all material. Tonnage- 4.0 TR, Inverter type, Power Supply- 3 phase, 50 Hz, 415V, Running Current 11 upto 8.5A (approx), standard cooling at 100% capacity- upto 12.8kW (approx), Power Consumption at 100% capacity- upto 6kW (approx), indoor air flow volume (high)- upto 1860 m3/h (approx), refrigerant- R32 or latest eco-friendly, Compressor Twin Rotart BLDC. Warranty- 1 year, Make- Voltas, Samsung, Hitachi, Carrier, Mitsubishi, LG, IFB, Blue star, Lioyd or similar.

Supply, Installation, testing and commissioning of MS fabricated outdoor unit stand for placing outdoor unit of VRV system.The stand shall be manufactured from MS C Channel of minimum 3-4 mm thick.It shall be finished with enamel paint as per client/architect approval.

Supply, fixing, testing and commissioning of suitable size interconnecting control cable size ( 5Cx6.0 sq mm) from indoor to outdoor unit complete with suitable size copper earthing as per relevant IS & IE rules and site requirement.

Supply of Refrigerant (R410a/32) charge to the outdoor unit and connected pipes between outdoor unit and indoor unit as per site requirement.

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 15 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 15.9 mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 16 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 9.5 mm dia with 13mm thick nitrile rubber insulation: 18G

Supply Fixing Testing and Commissioning of UPVc drain pipe size 25 mm dia complete with all accesories. Preferred Make:- AKG,Rajgold,Supreme,Finolex or equivalent Reputed brand and of relevant IS .

Supply, fixing, testing and commissioning of 25A/32 A,30 mA RCCB AC type confirming to IS 12640-1 & IEC61008-1 with 10KA short circuit withstand capacity complete with enclosure for AC.

Providing and fixing of control cable of 2 Core x 1.5 sqmm. Shielded cable in Heavy duty PVC conduit (20mm dia.) complete in all respect & as required

Supply, Installation, testing & commissioning of "Wall mounted (High wall type) unit without drain pump": All indoor units as specified shall have; in general, noise levels less than 48db. For critical applications requiring noise levels below these limits, indoor units should be designed accordingly to meet noise level requirement. i) Each unit shall have electronic control valve to control refrigerant flow rate respond to load variation of the room. ii) The address of the indoor unit shall be set automatically or through central controller in case of individual and group control. iii) The fan shall be Turbo, multiblade type, statically & dynamically balanced to ensure low noise and vibration free operation of the system. The fan shall be direct driven type, mounted20 directly on motor shaft having support from housing. iv) The cooling coil shall be made out of seamless copper tubes and having continuous aluminum fins. The fins shall be spaced by collars forming an integral part. The tubes shall be staggered in the direction of airflow. The tubes shall be hydraulically/ mechanically expanded for minimum thermal contact resistance with fins. Each coil shall be factory tested at 600 psi minimum (or as recommended by OEM) air pressure under water. v) Indoor unit shall have cleanable type filter with mould resistant resin net fixed to an integrally moulded plastic frame. The filter shall be slide in and neatly insert able type. It shall be possible to clean the filters either with compressed air or water. vi) Each indoor high wall unit shall be with corded/ cordless remote controller as standard features. The controller shall be able to change fan speed and angle of swing flap (for high wall) individually as per requirement. vii) All indoor Units should have force shut option to connect with fire alarm adaptor, so that the unit can be integrated with other systems to stop automatically such as in case of fire. (viii) High wall indoor units with corless remote to be supplied and confirming to specification at Tech Spec-I. 2.0 TR/706 CFM.

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 21 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 38.0 mm dia with 19mm thick nitrile rubber insulation : 16G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 22 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 34.9 mm dia with 19mm thick nitrile rubber insulation : 16G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 23 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 28.6 mm dia with 19mm thick nitrile rubber insulation: 16G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 24 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 22.2 mm dia with 19mm thick nitrile rubber insulation: 16G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 25 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 19.1 mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 12.7 mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 27 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 6.4 mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 28 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 25.4 mm dia with 19mm thick nitrile rubber insulation: 16G

"Refrigerant Piping for VRF system" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 19mm thick 29 (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft and confirming to specification at Tech Spec-I. 31.1 mm dia with 19mm thick nitrile rubber insulation: 16G

Supply,instalation ,testing and commissioning of T-joints and header etc as per site requirements.

Supply of PVC insulated flexible Copper cable 3C x 2.5 sq mm complete .as per latest IS and IE rules.

Supply ,Installation, testing and commissioning of uPVC pipe,complete with fittings,supports,U trap arrangement ,Clean Plug and accessories for AHU/IDU as per site requirement . 32 mm dia ( with 9 mm Nitrile)

Supply, installation, balancing and commissioning of RECTANGULAR aluminium ducting ( site fabricated) complete with fittings,Bracings and any other items required to make the system complete 22 SWG.

Supply, installation, balancing and commissioning of RECTANGULAR aluminium ducting ( site fabricated) complete with fittings,Bracings and any other items required to make the system complete 20 SWG.

Supplying & fixing suitable size GI box wih modular plate and cover in front on surface or in recess 35 including providing and fixing 25 Amodular socket outlet and 25 A modular SP MCB, "C" curve including connections, painting etc. as required conforming to CPWD General Specifications for Electrical Works Part-I Internal - 2023 and CPWD DSR (E&M) 2022 Item No. 1.57

Supplying and installation of perforated hot dipped galvanized iron cable tray (Galvanization 36 thickness not less than 50 micron) with perforation not more than 17.5% in convenient sections joined with connectors, suspended from ceiling with G.I. suspenders including G.I. bolts & nuts etc. as required conforming to CPWD General Specifications for Electrical Works Part-I Internal - 2023 and CPWD DSR (E&M) 2022 Item No. 4.6.4 Size :300 mm width x 50 mm depth x 1.6 mm thickness