Construction and installation of air cooling system at Newly created sub-division office building Patrakar Colony, Shikarpura, Sitapura Old, NRI, Muhana Mandi and division office building XEN CD-VIII, Stone Mart, Jaipur

PART-A (Bldg.)

22.1.3 Supply , Installation, Testing and Comissioning of factory assembeled double skin central evaporative cooling plant having specifications as per A, B, C, D, E A. Air washer comprising of 2nos Pre-Filters. First filter shall be 50mm thick Aluminium wiremesh filter & second filter shall be 50 mm thick MERV-8 synthetic media filter with efficiency 90 % down to 10 microns. Both filters to be placed over the common frame.B. Humidification section comprising of Wet pads 200 mm thick impregnated cellulose paper media ( Celdec pads ) with 2 bend PVC eliminator. The End plates of Pad & Eliminator shall be in SS 304 construction. Also, the inner blank offs of Wet section shall be in SS304 construction.D. TEFC High efficiecny IE-3 class motors as required with pulley, belt , Guard E. The unit shall be fabricated with frame work hollow extruded aluminium profile with 0.80 mm preplasticised GSS on outside and 0.80mm 275gsm plain GSS on inside complete with 25 mm thick CFC free PUF insulation of minimum 40 kg/cum density sandwiched in between inner and outer skins. Unit should have MS powder coated legs to give height to unit's base channel from the floor surface. SS-304 ( 18 g ) Sump, UPVC Internal piping, make up, drain & quick fill and drain connection, Butterfly/Gate valves for pumps, make up, drain & quick fill and drain connections of sump, 2 no. Vertical Pumps of suitable capacity to be placed inside the unit's housing (external pumps are not acceptable) ,Y strainers and necessary fittings, Concrete Blocks / M S stand, anti vibration pads etc.as required.more than 15000 cfm to 25000 cfm

22.2.3 SITC of Wall mounting cubical type Starter panel made out of 1.6 mm thick sheet steel  powder coated enclosure designed as per Switchgear OEM type -2 coordination chart and suitable for operation of following cfm range Air Washer's Blower motor, pump comprising of over load protection relay, short circuit & single phasing protection, ON / OFF  push buttons,  ammeter, voltmeter, indicating lamps, MCB etc. complete in all respect. All as per pre approved by Engineer in charge. more than 15000 cfm to 25000 cfm

22.3 Supply , Installation, Testing and Comissioning of wall mounted remote ON/OFF Push Button station for AHU/Air washers made out from powder quoted CRCA sheet of 16 SWG , illuminated ON/OFF push button including making connections etc as required complete in all respect. All as per pre approved by Engineer in charge.

22.6.1,22.6.2/E Supply , Installation, Testing and Comissioning of factory fabricated SMACNA standard ducting made from GI sheet metal conforming to IS:277 with a zinc coating grade of 120GSM (both side inclusive) & fabricated as per IS:655 and as per approved drawings & designs including the cost of hangers, supports, angle, expansion fasteners , closed cell neoprene gasket T&P etc. as required of following thickness. All as per pre approved by Engineer in charge. For additional technical parameters of products/ work , refer Annexure "A" attached with this BSR . (A) 0.60mm

(B) 0.80MM

22.10.1/E Supplying, installing, testing and balancing of double louvered of extruded Aluminium Powder coated supply/return air grills of various sizes, Each grill shall be with fixed aerofoil shaped horizontal front bar at 0 deflection and back adjustable vertical louvers, air distribution grid for straightening the air flow through the collar and register including fixing with steel screws etc. complete in all respect. Supply air grill with key operated volume control damper

22.16 Supply and fixing aluminium foil faced 50 mm thick Rock wool insulation of density 36 kg/cu.m after applying two coats of cold setting adhesive (CPRX Compound) sealing all joints with self adhesive tape & finished with 26 G Aluminium cladding. complete in all respect. (For Outdoor applications-air conditioning ducts)

22.47/E Providing and making wall openings in existing stone / Brick masonry partition wall complete with all requited T & P, Scaffolding and providing lintel of required size and strength, repairing, plastering and cleaning the site debris as required.

6.13.1.1 P & F of Industrial plug and socket conforming to IEC 60309-1/2 made out of self extinguishing engineering polymer / polyamide, nickel plated brass sleeve and pins, socket with shutter including making connection etc as reqd.