REPAIR MAINTENACE OF AHU AND CONNECTED WORKS UNDER GE(U) PM DELHI CANTT10

Amount

Material and labour for Supply, installation, testing and commissioning in replacement of flexible fire retardant canvas connector cloth suitable for AHUs duct connection including removing of old one complete all as specified and directed.

Supply only in replacement rubber insulating mat class A type, chequered, size 2 Mtr x 1 mtr x 25 mm thickness, for working voltage 3.3 KV complete all as specified and as directed.

Supply and fixing Acoustic treatment/ lining of area of AHU room with 22G, GI channels of 50x50 mm size fitted at 600x600mm girds. These girids will be fitted with 50mm thick 32 kg/cum fiber glass insulation covered be fiber glas tissue and 24 G Al perforated sheet and as required . The joint shall be minimium overlapping of 75mm with 30mmx 3mm aluminium strip covering. All corners shall be provided with 20x20x2mm aluminium angle with stainless steel counter sunk screws complete all as specified and directed.

Supply, install, testing and commissioning of Duct insulation with 25mm thick Nitrile Rubber insulation of class "o" fire retardant with Mechanical protection over insulation with fiber glass cloth & UV paint (for exposed duct) for Ducts installed outside, (exposed to sunlight) complete all as specified and directed.

Material and labour for insulation of MS pipe 40 mm bore heavy grade with all fittings laid in floors or fixed to walls and ceiling etc including PUF insulation and aluminium cladding including taking out/ down of existing pipe complete all as specified and directed.

All as per item No. 5.00 here-in-before but size of pipe 50mm dia.

All as per item No. 5.00 here-in-before but size of pipe 80mm dia.

All as per item No. 5.00 here-in-before but size of pipe 100mm dia.

All as per item No. 5.00 here-in-before but size of pipe 150mm dia.

All as per item No. 5.00 here-in-before but size of pipe 200/250mm dia.

Material and labour for Dismantling old/Unserviceable/rusted ,Supply/Return/Fresh Air GI Duct of any size/shape/dia with insulation from walls, roofs, ceiling for replacement complete Including Ducting Supports , rubber gaskets, elbows, vanes, & supports as per (IS 655) etc. from any location at Central AC plants Under GE(U) P&M Delhi Cantt compelte all as specified and directed.

(a) 24 gauge ( thickness 0.63mm )

(b) 22 gauge ( thickness 0.8mm )

Material and labour for Supply, fabrication ,Installation, Balancing and Commissioning of fabricated GSS sheet metal rectangular ducts/ elbows as per site requirement with supports as per IS 655-2010 complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as site requirements of following sheet thickness complete as required at site all as specified and directed.

24 gauge ( thickness 0.63mm )

22 gauge ( thickness 0.8mm )

Material and labour for Supply and installation in replacement of 50mm thick resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier insulation in existing ducts of AC plants, applying rubber based adhesive CPRX compound including wraping, pasting complete and cover the insulation one side with GI wire Mess netting after cleaning the duct surface (to be insulated ) by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof against any leakage and securing the insulation with and including mechanically fastened nylon/ steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr, including taking down old unserviceable one, complete all as directed.

Material and labour for dismantling of existing Air Handling Unit of any capacity, cleaning, servicing, overhauling to all component of AHU, with and including cleaning of heating & cooling coil with caustic soda solution, including welding/ brazing, wherever required to arrest leakages, cleaning of Pre-Micro Filters, replacing of vertical GI sheet supports, complete replacement of foam insulation of best quality using adhesive substance to avoid cold air leakages, fabrication of bottom GI tray of existing size with drain pane made out of 16 gauge thick GI Sheets duly painted with bituminous paint over interior surface of tray, re-assembling all the dismantled components to its original position using new nut, bolt, washer and other packing material etc, with and including testing, commissioning of Air handling Unit at optimum efficiency, complete all as specified and as directed.

Material and labour for maintenance of AHU supply panel / feeder pillar/LT panel indoor/outdoor type including removing the carbonized/melted sparked thimbles, cleaning the carbonized bus bar making cable ends fresh and supply and crimping new thimbles/lugs and fixing the cable on bus bar/MCCB/Main switch/MCB including providing new nut bolts and washer if required greasing the doors of feeder pillar/LT panel outdoor/indoor type complete all as specified & directed.

Material and labour for cleaning inside surface of Air supply return/exhaust ducts all grills, dampers & diffusers of HVAC system by using high power vacuum air compressor, robotic camera air hammer, special nozzle, air sweep with other required accessories giving/showing inspection of dust before and after cleaning of duct upto the satisfaction of Engr-in-Charge. Note :- (A) The contractor is responsible for any damage/breakage caused at the time of cleaning and the contractor will repair/replace the same without any extra cost to the Govt. (B) The mesurement of cleaning of Duct shall be mesured as per the room area the duct is feeding.

Supply & Fixing Pre filter 10 micron of size 600mm x 600 x 50mm made of out of GI wire mesh interspaced with two crimp layers and three flat layers flanged deep box type and efficiency 90% as per existing size and pattern for the all three AC Plant air handling unit complete all as specified and as directed.

ditto- all as per item No. 17 above but size 600mm x 300mm x 50mm.

ditto- all as per item No. 17 above but size 300mm x 300mm x 50mm.

M & L for V-belt for AHU blower motor and compressor motor of existing size, A-31, A-35, A-51, A-54, A-56, A-62, A-75, A-92, B-31,B-104, B-106, B-107 etc complete all as specified and as directed.

Supply and fixing in replacement of AHU Shaft bearing No. P-207/ P-208 or existing size as per site requirement complete all as specified and as directed.

Supply and fixing in repairs of bottom tray for fan and coil section made out of MS sheet 1.6mm thick duly painted with two coats of synthetic enamel paint (1st grade quality) through spray machine o over a coat of red oxide chrome primer with 25mm thick thermocol insulation covered with tarfelt for AHU complete all as specified and as directed.

Supply and fixing in repairs cast iron butter fly valves lever operated SS disc type nitrile/EPDM rubber lining PN 16 of dia 100 mm complete all as specified and directed.

ditto- all as per item No. 23 above but 80mm dia.

ditto- all as per item No. 23 above but 65mm dia.

ditto- all as per item No. 23 above but 50mm dia.

ditto- all as per item No. 23 above but 40mm dia.

S&F in repair/replacecment of Factory made Double skin floor mounted horizontal Air Handling unit (AHU) of minimum dimension is 2480 mm X 2150 mm X 2020mm (lengthXwidthXheight), AHU Fan complete section with DIDW centrifugal backward curved fan with 3 Phase AHU Blower Motor of Capacity 7.5 kw, 415V, 50HZ with all connected accessories and all fittings , 800 mm Fan dia, 777 RPM speed, 8.40m/s Fan outlet velocity, 5.68 kw shaft absorbing power with complete drive set & V-belt installationvand 50 mm thick box type Pre-Filters set (EU-4) Synthetic type (non woven type ), area of filter-36.0 Sq. ft(minimum), efficency - 90% down to 10 micron complete all suitable for 18000CFM AHU. The casing panels shall be made of sandwich construction of at least 25 mm thick injected with CFC free R141b blended Poly Urethene foam insulation having density of 38-40 Kg/Cu.m and thermal conductivity of 0.02 W/m-deg K. The Casing panels(inside and outside) shall be constructed of 1.2 mm steel sheet coated with 220 gm/Sq.m galvanized Zinc(Zn) and 3% Chromate. The outer skin shall be 0.6 mm pre - coated G.I. and inner skin 0.6 mm plain G.I. . Material of frame shall be Self supporting extruded aluminium with thermal break of AHU. The panels are removable type and are fixed to the frame with self tapping screws. Labyrinth type gasket sealing between panel and frame be provided to eliminate air leakages. AHU panel unit shall be supported on full perimeter base frame constructed from heavy duty galvanized steel sheet with complete all fittings as per site required for 18000 CFM,50(mm wg) static pressure,, directed and specified.

S&F in repair /replacement CHW + HW TYPE coil with fins, 36.0 Sq.ft coil area, GI coil casing / blank offs, coil section with 4 row, copper tube material, 12.7 mm tube dia, 27 SWG/ 0.41 mm thickness of tube, 4 RD cooling,2 RD Heating coil MS header matreial and 0.15 mm thick plain aluminium fins with No. of fins per inch 11/12 for CHW and No. of fins per inch 8/10 for HW Suitable for 18000 CFM, copper tubing material of 12.7mm/ 1/2" O.D. Dia and thickness of tubing 27 SWG/ 0.41MM and fins dimension 889mmX 1881mm , 50 (mm wg) static pressure and along with connected fixing brackets etc with complete as per specified& directed by Eng-in-Charge. (AHU coil :-AHRI certified as per test standard ARI-410 &UL certified for safety).

S&F in repair/replacecment of Factory made Double skin floor mounted horizontal Air Handling unit (AHU) of minimum dimension is 2290 mm X 2300 mm X 1400mm (lengthXwidthXheight), AHU Fan complete section with DIDW centrifugal backward curved fan with 3 Phase AHU Blower Motor of Capacity 5.5 kw, 415V, 50HZ with all connected accessories and all fittings ,630 mm Fan dia, 1013 RPM speed, 9.06m/s Fan outlet velocity, 4.11 kw shaft absorbing power with complete drive set & V-belt installation and 50 mm thick box type Pre-Filters set (EU-4) Synthetic type (non woven type ), area of filter-28.0 Sq. ft(minimum), efficency - 90% down to 10 micron complete all suitable for 12275CFM AHU. The casing panels shall be made of sandwich construction of at least 25 mm thick injected with CFC free R141b blended Poly Urethene foam insulation having density of 38-40 Kg/Cu.m and thermal conductivity of 0.02 W/m-deg K. The Casing panels(inside and outside) shall be constructed of 1.2 mm steel sheet coated with 220 gm/Sq.m galvanized Zinc(Zn) and 3% Chromate. The outer skin shall be 0.6 mm pre - coated G.I. and inner skin 0.6 mm plain G.I. . Material of frame shall be Self supporting extruded aluminium with thermal break of AHU. The panels are removable type and are fixed to the frame with self tapping screws. Labyrinth type gasket sealing between panel and frame be provided to eliminate air leakages. AHU panel unit shall be supported on full perimeter base frame constructed from heavy duty galvanized steel sheet with complete all fittings as per site required for 12275 CFM,50(mm wg) static pressure, directed and specified.

S&F in repair /replacement CHW + HW TYPE coil with fins, 24.60 Sq.ft coil area, GI coil casing / blank offs, coil section with 4 row, copper tube material, 12.7 mm tube dia, 27 SWG/ 0.41 mm thickness of tube, 4 RD cooling,2 RD Heating coil MS header matreial and 0.15 mm thick plain aluminium fins with No. of fins per inch 11/12 for CHW and No. of fins per inch 8/10 for HW Suitable for 12275 CFM, copper tubing material of 12.7mm/ 1/2" O.D. Dia and thickness of tubing 27 SWG/ 0.41MM and fins dimension 1206.5mmX 1891mm , 50 (mm wg) static pressure and along with connected fixing brackets etc with complete as per specified& directed by Eng-in-Charge. (AHU coil :-AHRI certified as per test standard ARI-410 &UL certified for safety).

Note :-(Ref item 28 to 31) (i) Contractor should carried out all necessary arrangement to stop leakage from existing pipe lines of AC plant during replacement of coil. (ii) Contractor should arrange necessary T &P and experience technician to carring out cutting of existing chilled water pipe line to AHU Coils and supply and fix with addition alteration to new copper tubing as per recommended by OEM. (iii) checking of any leakage in water pressurised chiller tubes after replacement of AHU Coil and cutting and addition alteration with copper tuning. (iv) Charging of complete system with chilled water recover from system for maintaining the system pressure up to HP - 175 psi & LP - 65 psi (v) Measure the inlet and outdoor temperature of package unit and maintain the desired temperature. (vi) Testing & commissioning of compressor after completion. (vii) Rate quoted by the contractor shall be incusive of transporting / installing of AHU to 3rd floor of exsiting location and foundation, angle iron work for base frame and necessory PCC work as per OEM recommendation complete all as specified and directed

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, armoured, electric power cables (heavy duty) 1100 Volts grade with aluminium conductor of cross sectional area 25 Sqmm, 4 core with galvanized steel strip or wire including taking down old unserviceable one complete all as specified and as directed.

ditto- all as per item No. 32 above but cross sectional area 16 Sqmm, 4 core.

ditto- all as per item No. 32 above but cross sectional area 10 Sqmm, 4 core.

ditto- all as per item No. 32 above but cross sectional area 6 Sqmm, 4 core.

S&F in repair cable tray of size 150 x 50 mm and thickness 3.00 mm complete all as specified & directed.

ditto- same as item No 36 but of size 300 x 50 mm.

Material and labour for dismantling the old broken existing pvc tank and S&F in replacement 200 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grain plastic (rectangular shape with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed.

S&F in replacement humidity self priming motor pump set of cap 0.5 HP single phase 240 volt of AC plant, fitted with thermal overload protector & IP-44 protection, 'B' class of insulation, Both side ball bearing double shielded including necessary GI tubing connection for incoming / outgoing supply complete all as specified and as directed.

Material and Labour for frame work with angle iron for frame support, with fabrication, welding joining including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 including taking down old unserviceable one complete all as specified and as directed.

Material and labour for taking out old corroded GI water tubing of 25 mm dia.

ditto- all as per item No. 41 above but 20 mm dia.

ditto- all as per item No. 41 above but 15 mm dia.

Supply laying, connecting and testing GI water tubing 25 mm bore, medium grade, with all fittings, with screwed and socketed joints, laid in trenches/floor or fixed to wall or surface and making good the disturbed surface complete all as specified and as directed.

ditto- all as per item No. 44 above but 20 mm dia.

ditto- all as per item No. 44 above but 15 mm dia.

Supply & Fixing shock absorbing rubber pads at the bottom of the AHU unit for absorbing shocks and vibrations, heavy duty of size 150 mmx 150mm complete all as specified and as directed.

Material and labour for dismantling the old brokrn existing PVC tank and S&F in replacement 2000 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grain plastic (cylindrical, vertical with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed.

Supply and fixing in repair/replacement Compound pressure gauge (Discharge pressure) of size 100 mm dia suitable for 0 to 300 PSI complete all as specified and as directed.

Supply and fixing in repairs/replacement Compound suction and Oil pressure gauge of size 100 mm dia suitable for 0 to 150 PSI complete all as specified and as directed.

Supply and fixing in repair/replacement of existing AHU door including nut,bolt,door lock,door glass,door handle,door hinges etc complete all as per specified and directed

Supply and fixing in replacement DOL starters for motors of 5/7.5 HP capacity with suitable rating relay, suitable for mounting on existing LT Panels of AC plants and connections with suitable size single core copper conductor wire complete all as specified and directed.

Taking down carefully existing surface/ concealed unserviceable aluminum/ copper point wiring (light, fan, socket, power or sunken box) complete including fittings such as switches, ceiling roses, pendants, regulators, sockets, light fittings, etc. and making good to disturbed surfaces of walls, floors, ceilings, etc. where required and finished the existing surfaces after complete of new point wiring as specified here-in-after complete all as specified and as directed.

Material and labour for point wiring with 1.5 sqmm (nominal area) PVC insulated and unsheathed single core FRLS (conforming to IS-694) copper cable 1100 volts grade with multi stranded copper conductor in and including PVC conduit (medium grade) of adequet size dia with all fittings and accessories including 2mm thick sunk MS pressed steel terminal boxes of appropriate size with 3.0mm thick plastic laminated sheet top cover with cadmium plated iron screws complete including PVC insulated and unsheathed FRLS (conforming to IS-694) single core multi stranded copper conductor cable of size 1.5 sqmm green colour as earth continuty conductor connected to common earth dolly for one light/ fan point controlled by one, one way switch complete all as specified and as directed.

All as per item No. 54 above but one 5/6amps socket outlet point on the same board with other switches complete all as specified and as directed.

Material and labour for point wiring with 2.5sqmm (nominal area) PVC insulated and unsheathed single core FRLS (conforming to IS-694) copper cable 1100 volts grade with multi stranded copper conductor in and including PVC casing caping (medium grade) of adequet size with all fittings and accessories including 2mm thick sunk MS pressed steel terminal boxes of appropriate size with 3.0mm thick plastic laminated sheet top cover with cadmium plated iron screws complete including PVC insulated and unsheathed FRLS (conforming to IS-694) single core multi stranded copper conductor cable of size 2.5sqmm green colour as earth continuty conductor connected to common earth dolly for one 5or6 /15or16 Amps socket outlet points controlled by one, one way switch on independent board complete all as specified and as directed

Supply and fixing in replacement thermostat for AHU room, as per existing size & specification complete all as specified and as directed.

Supply and fixing in replacement of basic all purpose surface and wall mounted LED batten 20 Watt with polycarbonate housing & intigrated electronic driver with all necessary fixing accessories complete all as specified and as directed.

Supply and fixing in replacement LED street light fitting 45 Watt 230 V AC outdoor type with high pressure die cast aluminum housing and heat resistant complete with driver, lamp bracket with impact and corrosion resistant including thermal management in multiple optics complete with IP 65/66 protection complete all as specified and directed.

Supply & fixing in replacement aluminium lugs for cable of cross sectional area 10 to 35Sqmm complete all as specified and directed

Supply & fixing in replacement aluminium lugs for cable of cross sectional area 75 to 185 Sqmm complete all as specified and directed.

Supply & fixing in replacement copper lugs for cable of cross sectional area 10 to 25 Sqmm complete all as specified and directed.

Flint India (BID ID -3277845)

Shiv Enterprises (BID ID -3275395)

P S TRADERS (BID ID -3275344)