PROVISION OF AIR CONDITIONING SYSTEM IN MULTI UTILITY HALL AT GRD KUNRAGHAT UNDER AF STATION GORAKHPUR

Amount

Supply, installation, testing & commissioning of three phase AC 16.5 TR Twin Circuit (6600 CFM) , Air Cooled Ducted package Air conditioning units of 16.5 TR capacity comprising of Imported Scroll Compressor, DX Evaporator coil, thermostatic expansion device, air-cooled condensers with specially coated fins, centrifugal blower, TEFC Motor, Microprocessor based control panel alongwith bult-in UVGI system therefore ensures virus-free and safe interiors etc. All items shall be encased in sheet metal cabinet. AC units should be 100% efficiant on 43 ºC ambient temprature. Note: OEM drawing along with technical specificaion of each items of complete plant shall be approved by accepting officer.

Supplying, fixing, testing and commissioning of Interconnecting refrigerant pipe work with (19 mm / 13 mm thick) XLPE polythylene insulation between each set of indoor & outdoor units as per specifications, all piping inside the room shall be properly supported with MS hanger as per specification and drawings. Note :Per mtr of single run of gas and liquid line with insulation .

Supply and charging of Refrigerant Gas R-410A as per required complete all as specified and directed.

Supplying and fixing of rigid PVC piping complete with fittings, supports as per specifications and duly insulated with 6 mm thick XLPE polythylene insulation as per specification and drawings.

Supplying and fixing of control cum transmission wiring of 3 core x 2.5 sqmm copper in suitable conduits between indoor and out door unit and between corded remote and indoor unit complete all as specified and directed.

Supplying, fixing, testing and commissioning of G.I. factory made ducting along with all supports, hangers, vanes, splitters, neoprone gasket for zero leakage all should be as per SMACNA standards and as per specification and drawings. Following G.I. Sheet Metal Ducting (Oval shape) as under:-

Supplying and fixing 9mm thick insulation of XLPE polythylene / nitrile rubber insulation with proper adhesive on ducts complete as per specifications and drawings.

Supplying and fixing of duct acoustic lining 10mm with Armasound complete as per specifications and drawings.

SITC of Fire Retardant duct connection complete with fittings ,flange,supports,all accessories as per specifications and any other required to make the system complete as per specifications and drawings.

M & L Powder Coating on oval duct complete as per specifications and drawings.

supplying and fixing of following aluminium extruded powder coated supply and return air grilles/diffusers as per specifications and drawings including fixing frame in false ceiling/walls as per specification and drawings as under.(Colour approval from Arch.)

Aluminium supply grill/Diffuser with damper.

Jet Nozzle Diffuser with damper

Collor Damper

Aluminium supply grill/Diffuser without damper.

Supplying and fixing of aluminium powder coated fresh air / exhaust air louvers with bird screen, as per standard and specification and drawings.

M & L of mild steel stand & Support including two coat synthetic enamel paint over one coat of red oxide primer complete all as specified and directed by Engr-in-charge.

M & L for earthing with galvanized steel earth plate electrode of size 600mm x 600mm x 6 mm buried directly in ground earth pit not less than 2.25 mtr below of normal ground level with top edge of earth plate should not less than 1.5 mtr below normal ground level and connected to galvanized iron strip 32x6 mm by means of bolts, nuts, washers of galvanized iron or steel all as shown in electrical plate No.5 of MES SSR Part I connecting to earthing test point on completion with and including 15 mm bore GI light grade protection pipe (7.5 mtr long) for earth lead GI lead wire 4mm dia (7.5 mtr long), PCC pit with cover in PCC 1:2:4 type B-1 reinforced with 8 mm dia tor bars @ 80mm C/C, 20mm dia medium grade watering pipe with funnel, wire mesh, common salt, charcoal, necessary excavation and earth work complete all as specified and directed by Engr- in- Chanrge

Supply and fix air cooled air conditioner electric driven, single phase , 5 star of capacity of 2.0TR AIR CONDITIONER CASSETTEE TYPE split system, core material used only copper material, Refrigerant type R-32 complete all as per specified and directed. Make -model of SAC C2-N Venture of voltas or equivalent make as per appendix 'B'

Supply and fix 5 KVA capacity Voltage stabilizer for automatic operation, single phase naturally air cooled indoor type & designed for input variation between 170 V to 250 V with output voltage stabilized at 230 V with accuracy of ± 2.5% complete all as specified and directed.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep for foundation of laying cable including getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading , watering and well ramming in layers not exceeding 25cm complete all as directed.

Removing of surplus soil to distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

Material & labour for sand filling with clean dry fine sand unwashed including gently punning around cables in trenches for cable protection complete all as specified and directed by Engineer-in-Charge.

Supplying & Laying Sub Class `B’ bricks, old size, kiln burnt, laid with axis of brick perpendicular to the axis of the cable, for protection of cable all as specified and directed by Engineer-in-Charge.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 95 sqmm 3.5 core complete all as specified and directed by Engineer-in-Charge.

Ajanta Associates

M/s Comfort Air Conditioning and Refrigeration Engineers