Comprehensive maintenance/repair of AC plant at Sig centre Under GE (W) Mathura

Amount

M&L for disconnecting electric connection from electric motor 415 volts, 3 phase 50HZ, dismantling from foundation, transporting to workshop for repairs, opening of motor including removing of burnt copper winding from stator and rewinding the same with super enamelled copper wire of existing size including insulating material like leatherised paper, cotton tap, empire tap varnishing, drying, heating etc and refixing in same position and recommissioning and testing after rewinding complete all as specified and as directed of the following capacities :- (i) 40 HP

(iii) 7.5 HP

S&F in renewal following bearings including disconnecting, taking down opening assembling and testing electric motor complete all as specified and directed :- (i) Roller bearing for 40 HP electric motor

(ii) Ball bearing for 14 HP electric motor

(iii) Ball bearing for 7.5 HP electric motor

(iv) Ball bearing for 5.0 HP electric motor

M&L for dismantling, opening of water cooled condensing assembly of 25 TR capacity central AC plant, descaling the same by means of brush, rod brush including descaling by chemical solution (HCL Solvent wax) of complete shell and tubes including renewal of wornout nuts, bolts and washers, re-assembling and testing complete all as specified and directed.

S&F in replacement contactor ML-1.5 three phase 415 volt 50 Hz AC complete with 1 NO +1NC complete all as specified and as directed.

S&F in replacement contactor ML-2 three phase 415 volt 50 Hz AC complete with 1 NO +1NC complete all as specified and as directed.

S&F in replacement over load protection three phase 415 volt 50 Hz AC of rating 32 Amps complete all as specified and directed.

S&F in replacement over load protection three phase 415 volt 50 Hz AC of rating 63 Amps suitable for compresor of 25 TR capacitycomplete all as specified and directed.

S&F in renewal of single phase preventor 415 volt 50 Hz VSP 2 type complete with electronic circuit complete all as specified and directed.

S&F in renewal of single phase preventor 415 volt 50 Hz VSP 3 type complete with electronic circuit complete all as specified and directed.

S&F in renewal of MCCB 4 pole 100 Amps, 415 volts, 16 KA rupturing capacity with adjustable thermal & magnatic setting complete all as specified and directed.

S&F in renewal of MCB TP 415 volts, 32 Amps, 10 KA 'C' series complete all as specified and directed.

S&F in renewal of Ampere meter digital 0 to 30 Amps with CT 's complete all as specified and directed.

S&F in renewal of numeric digital display for accuracy of Voltage, Ampere etc complete all as specified and directed.

S&F in renewal of digital thermometer range -50C to +50C for inlet & outlet of AC plant room complete all as specified and directed.

S&F in renewal pressure gauge with glycol filled range 0-100 PSI suitable for compressor of 25 TR capacity complete all as specified and directed. Make : IEBIG / FLW or in equivalent.

S&F in renewal of pressure gauge with glycol filled range 0-150 PSI suitable for compressor of 25 TR capacity complete all as specified and directed.

S&F in renewal pressure gauge with glycol filled range 0-300 PSI suitable for compressor of 25 TR capacity complete all as specified and directed.

S&F PVC insulated PVC sheathed unarmoured multistranded single core 1100 volts grade heavy duty copper conductor electric cable ISI maked of size 6 sqmm FRLS with suitable size of flexible conduit and cable lugs including taking out unserviceable cable complete all as specified and directed.

S&F in renewal of brass compressor safety valve suitable for 25 TR capacity compressor of existing make complete all as specified and directed.

S&F in renewal of brass solenoid valve suitable for compressor of 25 TR capacity complete all as specified and directed.

M&L for renewal of CI compressor suction valve / discharge valve suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F in renewal of fresh air filter 10 microns of size 600mmx600mm with frame made out of GI sheet, with mesh, steel cover net made as per existing gauge and size complete all as specified and directed.

Supply & refilling of refrigerant Gas M-22 / R-22 in plant system of required capacity /pressure complete all as specified and as directed. .

Supply of non freezing compressor oil in sealed standard size container/ barrel complete all as specified and directed.

S&F in renewal of jet sprinkler assembly size 80mm dia complete including all necessary fixing accessories for sprinkler as per existing size and testing complete all as specified and directed.

T&P for cleaning of cooling tower FRP by means of soft nylon brushes removing of sludge’s/dirt particles from bottom/fins/ water pipe line etc using chemical solution, Greasing and oiling fan motor, hubs, bearing etc complete for 50 Ton capacity of the AC plants complete all as specified and directed.

S&F in renewal fan rubber belt "V" shape No B-78 complete all as specified and directed.

S&F SS Pulley 6 groove suitable for electric motor shaft 40 HP including taking down old unserviceable strainer of old one complete all as specified and directed.

S&F in renewal SS Pulley 6 groove suitable for compressor shaft of 25 ton capacity complete all as specified and directed.

S&F water strainer for cooling tower of 80mm dia including testing and taking down old unserviceable strainer complete all as specified and directed.

S&F CT Fan assembly for cooling tower size 35mm dia, arm length 500mm suitable for AC plant 2x25 Ton capacity and all as per existing specifications including taking down old U/S fan assembly complete all as specified and directed.

M&L Opening of AHU Coil, Supply duct, Return duct,diffusers, grills, dampers and any other installed component part of the Central AC plant at Signal center and fixing the same in position after cleaning the parts with following procedures and equipements complete all as specified and directed :-

(a) Collection of vaccum particles : The most important component ensures that no cross contamination in duct area of plant premises.

(b) Renewal of Rotary brushes system self propelled type with different types of brushes and used to agitate and loosen dirt with the duct.

(c) Viper set used again to loosen dirt depending upon the type & size of duct.

(d) Contact vacuming method of HVAC system cleaning which incorporates agitation and vacuum collection principles into one operation.

(e) Compressed air washing mechanical means to agitate and dislodge particulate from the interior surfaces of an HVAC system.

(f) All of the grill and differs are removed and Cleaned.

(g) Foam core boards are placed up to supply vent openings. The air movement holds these boards up to the openings. This also increases the air movement in the duct. Supply vent is covered. The open supply vent allows for the air to safety flow backward through the air duct system without creating adverse negative pressure.

(h) Starting from furthest vent opening, each branch line is cleaned using nylon duct brushes, cable driven brushes, or forward air blast assemblies to loosen debris. The agitation tool causes debris to be quickly caught up in the air movement from the HYPE M/c. The process is then repeated at each vent opening. Once all the branch lines have been cleaned, the main pocket filter is cleaned.

(j) After the dust and debris is removed from the system, an light fogged through the air duct system. This product immediately kills fungus and bacteria that may be left in the system.

(k) The insulation in the air handler unit case is manually cleaned and then treated with fogger m/c to kill any residual mold, fungus, or bacteria. The blower motor is inspected and cleaned if necessary and accessible.

(l) Coil cleaning with the COIL CLEANER.

(m) Testing the duct after cleaning all part of the system of air ducts.

Taking down old butter fly valve and S&F new CI body butter fly valve half round type ISI marked including nuts, bolts, joint, rubber insertion sheet complete all as specified and directed of following size :- (i) 50mm dia

(ii) 65mm dia

(iii) 80mm dia

Taking down security light fittingsl / bulk head / under water light fittings of any description complete all as specified and directed.

S&F building security light fixture LED 36 watts including connection with pre insulated GI pipe 32mm dia light grade with clamps and copper conductor cord flexible of size 23/0.0076, 3 core complete all as specified and directed.

S&F in renewal of connecting rod including bush & lathe work suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F in renewal of Piston including lathe works suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F in renewal of Shaft sleeve including lathe works suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F in renewal of Piston rings including lathe works suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F renewal of valve set plate suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F renewal of gazan pin lock suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F renewal of gazan pin bush including lathe works suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F renewal of packing kit suitable for 25 TR compressor all as per existing complete all as specified and directed.

S&F in renewal of cable flat with copper conductor of size 10 Sqmm, 3 core complete all as specified and directed.

M&L for painting of central AC plant equipments such as blowers ,motors .LT Panel board,AHU .suction /discharge ,cooling tower and complete equipments for 3x25 TR AC Plant installed at 1CSR signal exchange with two coats of super enamelled paint of existing colour (HP -Red colour, LP green colour, Belt cover - Red colour, water pipe -Black colour) complete surface finsh over one coat of red oxide primer including complete renewal of existing painting and parpration of surface for painting and rewriting of SM/MES Nos including all previous writing work complete all as specified and directed

T&P for cheking of gas leakage & arresting the leakage of complete AC plant by using Nitrogen gas and vaccumising the system and other required material complete all as specified and directed

S&F in renewal of connector strips as per existing size & fixing on existing electric panel complete all as specified and directed.

M&L for cleaning of AHU Room and filters by taking out filters of the Central AC plant at 1 CSR signal exchange once within a period of 7 days and fixing the same in position complete all as specified and directed.

S&F in renewal of 1/4 inch dryer filter (silicon gel filter) with solenoid switch & fixing on 25 TR Compressor unit complete all as specified and directed.

S&F in renewal of monitoring pipe hold valves size 1/2 inch x 1/4 inch brass type & fixing on 25 TR Compressor unit complete all as specified and directed.

S&F in renewal of copper tubes with flare nuts size 1/4 inch end as per existing size & fixing on 3 x 25 TR Compressor unit complete all as specified and directed.

S&F in renewal of high pressure switch (Autocut switch) upto 225 PSI capacity and fixing on 25 TR Compressor unit including control wiring of that switch complete all as specified and directed.

S&F in renewal of low pressure switch (Autocut switch) upto 40 PSI capacity and fixing on 25 TR Compressor unit including control wiring of that switch complete all as specified and directed.

S&F Aluminium Diffuser powder coated of size 2 feet X 2 feet ( as per existing size) and gauge all as specified and directed.

S&F Chromium bush as per existing size all as specified and directed .

S&F Rubber oil seal as per existing size all as specified and directed .

S&F Oil pump assembly with oil filter all as specified and directed .

Supply and lay new electrical rubber matting as per ISI and size 1 mtr x2 mtr x19 mm thick suitable for electric installations/ panel boards tested suitable all as specified and directed by Eng -in -Charge .

M/S A.K. ENGINEERS