REPAIR/MAINTENACE OF AHU AND CONNECTED WORKS UNDER GE UTILITY PLANT AND MACHINERY DELHI CANTT-10

Amount

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 as directed.

24 gauge ( thickness 0.63mm )

22 gauge ( thickness 0.8mm )

20 gauge ( thickness 1.0mm )

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 as directed. (Make: Sail/ Tata/ Jindal/ Rastriya Ispat)

24 gauge ( thickness 0.63mm )

22 gauge ( thickness 0.8mm )

20 gauge ( thickness 1.0mm )

Dismantling old/ Unserviceable/ rusted Supply/ Return Air Diffuser/ Dampers/ side Grilles/VCD , of any size any shape from any location at Central AC Plants under GE(U) P&M complete all as specified and as directed

Supply, fixing of powder coated extruded aluminum rectangular diffusers complete with black anodized extruded aluminum VCD (wherever specified), nuts, bolts, screws etc.complete as required at site all as specified and as directed.

Supply air diffusers of required sizes with volume control damper.

Return air diffusers of required sizes without volume control damper

Supply & Fixing of powder coated extruded aluminum supply & return grilles complete with nuts, bolts, screws etc. to make the system complete, as required at site all as specified and as directed.

Supply and installation in replacement of thermal insulation material for non-exposed Ducts with closed cell class o nitrile rubber elastomeric insulation of density 40-60 Kg/m3 thermal conductivity of 0.033-0.038 W/mk and µ>=7000 (k-flex st) to be applied on ducts using manufacturers recommended rubber based adhesive as per the approved specification the material should be from global approved & UL approved for new ducts as required at site complete all as specified and as directed.

13 mm thick

19 mm thick

25 mm thick

M&L in replacement for ducting supports, bracings, hangers,(as per IS-655) clamps and back plates fabricated from structural steel sections including nuts, bolts ,washers ,welding, bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive of one primer coat one under coat and one finishing coat of paint complete all as specified and as directed.

Supply, installation, testing and commissioning in replacement of flexible fire retardant canvas connector cloth including removing of old one complete all as specified and as directed.

S&F in replacement acoustic lining of supply air ducting complete with GI frame, tissue paper, 26 Guage perforated Aluminium Sheet, 25mm thick, of density 32 Kg/cum fiber glass insulation complete all as specified and as directed.

Dismantling Wall and ceiling boards (fibre, pulp, insulation, etc.) or insulation boards/slabs/ blankets, any thickness, including cover fillets etc complete all as specified and as directed.

S&F powder coated Gl frame work for seamless ceiling comprising of Gl perimeter channnel 0.55 mm thick with two unequal flanges of 20 and 30 mm and web of 27 mm, fixed to surrounding wall using nylon sleeves and screws at 450 mm centre to centre/intermediate channel 0.9 mm thick having two equal flanges of 15 mm each and web of 45 mm, suspended from soffit at approx 900 mm centre to centre with Gl cleat and steel expansion fasteners with and including ceiling section (not exc 1.2 m length) of 0.55 mm thickness having kurled web of 50 mm and flange of 26 mm each with lips of 10.5 mm, fixed to the intermediate channel with connecting clips across the intermediate channel at 457 mm centre to centre complete all as specified and as directed.

S&F Hangers 6 mm dia. G.I. (upto 1200mm length) adjusting level, fixed to roof slabs by means of ceilling cleats made out of G.I. flat 40 x 3 mm size, 60mm long and expansion hold fasteners 12.5mm dia, 40mm long complete all as specified and as directed.

S&F 4 mm thick Non asbestos fibre cement building boards (E Board), designer pattern, fixed or laid/ inserted to timber/GI/Aluminium framework with screws complete all as specified and as directed. (Make: Arm Strong/ Everest/ Anchor Bombay)

S&F false ceiling of 12.5 mm thick tapered edge gypsum board conforming to IS 2095 including providing and fixing frame work made out of special sections power pressed from MS Sheet and galvanised in accordance with zink coating and consisting of angle cleat of size 25 mm wide X 1.8 mm thick with flange of 22 mm and 37 mm at 1.2 mtr C/C , Angle fixed to the ceiling with dash fastener 12.5 mm dia x 40 mm long with 6 mm dia bolts to the angle hangers of 25x25x5 mm running @1.2 mtr C/C to which the ceiling section 0.5 mm thick bottom wedge of 80 mm with tapered flanges of 26 mm , shall be fixed in a direction perpendicular to GI Channel with connecting clips made out of 2.64 mm dia x 130 mm long GI wire at every in including fixing the gypsum board with ceiling section and perimeter channel 0.5 mm thick 27 mm high having flanges of 20 mm and 30 mm long the perimeter of ceiling fixed to wall / partition with the help of rawl plug at 450 mm c/c with 25 mm long screws @ 230 mm internal including jointing and fixing to a flush finish of tapered and square edge the gypsum board with filler and finish with POP as per approved colour, paper tapes including making opening for light fittings ,AC grills, diffusers cut outs made with frames of perimeter channels complete in plain horizontally / vertically location including applying coats of plastic emulsion paint over a coat of approved primer on gypsum board false ceiling horizontally / vertically as specified (at ceiling height up to 8 mtr appx) 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 as 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 as directed.

S&F in replacement DX TYPE coil with fins, 215cm X 140cm coil area, GI coil casing / blank offs, coil section with 4 row with single number of distributers, copper tube material, 12.7mm tube dia, 25 SWG/ 0.5 mm thickness of tube, 4 RD cooling, coil copper head. Note :- (i) Contractor shall carried out complete pump down the system with recovery unit and take all refrigerent Gas from the system in refrigerent bottle with recovery unit and store at safe place for reuse. (ii) Contractor shall arrange necessary T &P and experience technician to carring out cutting of existing copper pipe lines from expansion valves to AHU Coils and supply and fixing with addition alteration to new copper tubing as recommended by OEM. (iii) Cost of following works shall also deemed to be included in the rates quoted by the contractor:- (a) Charging of nitrogen Gas in unit & complete system at 300 psi pressure and checking of any dropping of pressure / leakage up to 72 Hrs after replacement of AHU Coil and cutting and addition alteration with copper tuning. (b) Vaccumisation of complete system for minimum 2 days for dropping of vacuum pressure & rectification of leakage if any. (c) Charging of complete system with R - 22 gas stored in bottle recover from system for maintaining the system pressure up to HP - 175 psi & LP - 65 psi. (d) Measure the inlet and outdoor temperature of package unit and maintain temperature as per required at site. (e) Testing & commissioning of compressor after completion.

S&F in replacement Chiller TYPE coil with fins, 220cm X 170cm coil area, GI coil casing / blank offs, coil section with 4 row with single number of distributers, copper tube material, 12.7mm tube dia, 25 SWG/ 0.5 mm thickness of tube, 4 RD cooling, coil copper head. Note :- (i) Contractor shall carried out complete pump down the system with recovery unit and take all refrigerent Gas from the system in refrigerent bottle with recovery unit and store at safe place for reuse. (ii) Contractor shall arrange necessary T &P and experience technician to carring out cutting of existing copper pipe lines from expansion valves to AHU Coils and supply and fixing with addition alteration to new copper tubing as recommended by OEM. (iii) Cost of following works shall also deemed to be included in the rates quoted by the contractor:- (a) Charging of nitrogen Gas in unit & complete system at 300 psi pressure and checking of any dropping of pressure / leakage up to 72 Hrs after replacement of AHU Coil and cutting and addition alteration with copper tuning. (b) Vaccumisation of complete system for minimum 2 days for dropping of vacuum pressure & rectification of leakage if any. (c) Charging of complete system with R - 22 gas stored in bottle recover from system for maintaining the system pressure up to HP - 175 psi & LP - 65 psi. (d) Measure the inlet and outdoor temperature of package unit and maintain temperature as per required at site. (e) Testing & commissioning of compressor after completion.

S&F in replacement Chiller TYPE coil with fins, 190cm X 150cm coil area, GI coil casing / blank offs, coil section with 4 row with single number of distributers, copper tube material, 12.7mm tube dia, 25 SWG/ 0.5 mm thickness of tube, 4 RD cooling, coil copper head. Note :- (i) Contractor shall carried out complete pump down the system with recovery unit and take all refrigerent Gas from the system in refrigerent bottle with recovery unit and store at safe place for reuse. (ii) Contractor shall arrange necessary T &P and experience technician to carring out cutting of existing copper pipe lines from expansion valves to AHU Coils and supply and fixing with addition alteration to new copper tubing as recommended by OEM. (iii) Cost of following works shall also deemed to be included in the rates quoted by the contractor:- (a) Charging of nitrogen Gas in unit & complete system at 300 psi pressure and checking of any dropping of pressure / leakage up to 72 Hrs after replacement of AHU Coil and cutting and addition alteration with copper tuning. (b) Vaccumisation of complete system for minimum 2 days for dropping of vacuum pressure & rectification of leakage if any. (c) Charging of complete system with R - 22 gas stored in bottle recover from system for maintaining the system pressure up to HP - 175 psi & LP - 65 psi. (d) Measure the inlet and outdoor temperature of package unit and maintain temperature as per required at site. (e) Testing & commissioning of compressor after completion.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 7.5 HP, 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar) Note :- Old Motor to Deposite to MES store.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 20 HP, 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar). Note :- Old Motor to Deposite to MES store.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 15 HP, 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar). Note :- Old Motor to Deposite to MES store.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 10 HP, 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar) Note :- Old Motor to Deposite to MES store.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 3 HP, 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar) Note :- Old Motor to Deposite to MES store.

Taking out all electrical connections of old unserviceable squirrel cage motor of any capacity, supply & fix new squirrel cage induction motor of capacity 5 HP , 3 phase, 440+ 10%, 50 Hz, 1400-1500 RPM, IP-55, 4 Pole protected including necessary arrangements for mouting on existing angle iron frame, nuts, bolts and washers of suitable size, connecting with the existing AHU blower complete all as specified and as directed. (Make-ABB/Crompton/ Kirloskar) Note :- Old Motor to Deposite to MES store.

Saini Enterprises