|
| 1 | Supply and fixing of ss-304 (18 guage ) made base frame with sump for 15000 to 30000 cfm double skin central evaporative cooling plant including the air cooling machine needs to be dismantal and reinstalled using a new base and sump with necessary arrengement for centrifugal fan,electric motor, wet pads , 2 nos pre-filters, 2 bend PVC eliminator.the end plates for pad & eliminator shall be in ss-304 constructed, spring isolators to be installed in this frame. |
| 2 | Supply and fixing of ss-304 (18 guage ) made sump for 15000 to 30000 cfm double skin central evaporative cooling plant including the air cooling machine needs to be dismantal and reinstalled using a new sump with necessary arrengement for water pump, wet pads , 2 nos pre-filters,the end plates for pad & eliminator shall be in ss-304 constructed, include necessary hardware etc as required. |
| 3 | Supply and installation of 2 bend PVC eliminator/mist eliminator with 100 mm thickness, include G.I. frame and necessary support, hardware etc as required. |
| 4 | Supply and installation of 50 mm thick 7 layer Aluminium wiremesh pre-filter for air cooling machine/AHU etc as required. |
| 5 | Supply and installation of 50 mm thick MERV-8 synthetic media filter with efficiency 90% to 10 microns,made in Aluminium frame for air cooling machine /AHU etc as required. |
| 6 | Supply and installation of OEM made puff insulation panel 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.including door handles, hardwares etc as required. |
| 7 | Supply , Installation, Testing and Comissioning of factory assembeled double skin central evaporative cooling plant having specifications as per A, B, C, D, E |
| 8 | 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. |
| 9 | 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. |
| 10 | C. Fan Section comprising of belt driven, DIDW Backward curved AMCA certified centrifugal fan with maximum air outlet velocity of 10m/s suitable for required cfm at 50 mm static pressure (Total static of the unit shall be verified by the OEM before the design & supply of the units). Fan & Motor should be mounted over Aluminium channel of suitable thickness and should be isolated from the unit's bottom panel by means of Spring isolators. |
| 11 | D. TEFC High efficiecny IE-3 class motors as required with pulley, belt , Guard |
| 12 | 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. |
| 13 | more than 15000 cfm to 25000 cfm |
| 14 | Supply , Installation, Testing and Comissioning of site fabricated ducting made from GI sheet metal conforming to IS:277 with a zinc coating grade not less than 120 GSM (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. Test Certificate for Galavanizing with lot no. to be submitted. |
| 15 | 0.80mm |
| 16 | Supplying and fixing of thermal insulation on exposed roof (underdeck) with 25 mm thick Cross Linked Closed Cell Polyethylene FR-XPE insulation of density 33 Kg/m³ with adhesive etc. as required & finally fixed with the help of rawl plug, dash fasteners & adhesive in ceiling of pieces in size of 900x900 mm or 1200x1200 mm. etc. as required. |
| 17 | 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. |
| 18 | Supply air grill with key operated volume control damper |
| 19 | Return air grill without volume control damper |
| 20 | Providing Manpower through Contracting agency for Supervision / Execution / Operation of various Electromechanical Installations. (one shift of 8 working Hrs per day ) on basis of minimum wages + VDA order Dt. 28.03.2025 Ministry of Labour and Employement Govt. of India |
| 21 | Technical Helper Having basic Knowledge of E&M Services |
| 22 | 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. |
| 23 | more than 15000 cfm to 25000 cfm |
| 24 | Supply & fabrication steel structure with MS channel / angle / joist / ISMB / sheet etc. including welding, rivetting, cutting, nut & bolt , one coat of primer & two coat of enamel paint etc. as required complete in all respect. . |
| 25 | Gas charging of VRF/VRV system with R410A refrigerant gas. Before gas charging system shall be flushed with high purity Nitrogen Gas to remove carbon content, dirt particles to make sure that there is no chance of mixing any impurity with Refrigerant Gas. Thereafter System shall be tested with Nitrogen Gas at 1.5 Times of working pressure of R410 Refrigerant Gas to ensure leakproof system. Whole system shall be Vacuumed up to 500-micron level which ensures the zero-moisture content level in piping to ensure better cooling efficiency and long life of the system. |
| 26 | SITC of Interconnecting refrigerant copper pipe for split/Ductable/ Casseette AC of DHE Grade C12200- ASTM B68, B75, chemical composition of copper %- 99.0 Min and Phosphorus %- 0.015 to 0.040 . For Annealed copper tube :- Tensile strength = 210 Mpa wih elongation % = 40 Min . Ink Mark Brand Printing on Hard Tubes should be present. Piping between each set of indoor & outdoor units of different sizes as per OEM requirement & specifications including class 'O' Nitrile rubber sleeves (size as per item no. 22.43),7 mil Glass Cloth with 3 coats of anti UV paint (on area which is exposed to weather) chase cutting, supports, making good the same with sand cement plaster etc. as required. |
| 27 | P & F of Fire retardent flexible canvass connection made of fibreglass weave having silver grey silicon rubber coating, of height 200 mm with sufficient fold to avoid transmission of vibration with GI frame ,Gasket Nut Bolts for air cooling Plants/AHU/FCU etc as required. |
| 28 | Supply & fixing MS powder coated stand suitable for 1.0/1.5/ 2.0 Tr outdoor type of Split AC. All as per pre approved by Engineer in charge. |
| 29 | GST@ 18% Please Enable Macros to View BoQ information |
