REPAIR/ MAINT OF WATER AND AIR COOLED AIRCONDITIONING UNITS INSTALLED AT LCA COMPLEX TRANSMITTER, RUBBER STORE, INCLUDING CERTAIN MISC E/M WORKS

Amount

SCHEDULE A BOQ

S&F in replacement of SMPS capacity 120 W Suitable for 3x26 TR AC plant complete all as specifed and directed by Engr-In-Charge.

S&F in replacement of timer 0-25 suitable for 3x26 TR AC plant complete all as specifed and directed by Engr-In-Charge.

S&F in replacement of contactor SP 40T 3 pole suitable for 3x26 TR AC plant complete all as specifed and directed by Engr-In-Charge.

S&F in replacement of contactor 3 pole 40 A suitable for 3x78 TR AC plant all as specifed and directed by Engr-In-Charge.

S&F in replacement of contactor 3 pole 63 A suitable for 3x45 TR AC plant all as specifed and directed by Engr-In-Charge.

S&F in replacement of contactor 3 pole 36 A suitable for 3x45 TR AC plant all as specifed and directed by Engr-In-Charge.

S&F in replacement of MCB 3 pole 63 Amps complete all as specifed and directed by Engr-In-Charge.

S & F in replacement of LP/HP combination cut out 3100 series Suitable 3x26 TR AC plant with flare nut complete all as specified and as directed.

S&F in replacement of butterfly valve size 125/150 mm with rubber gas kit complete all as specified and as directed.

S&F in replacement of butterfly valve size 100 mm with rubber gas kit complete all as specified and as directed.

S&F in replacement of butterfly valve size 75/80 mm with rubber gas kit complete all as specified and as directed.

S&F in replacement of butterfly valve size 50 mm with rubber gas kit complete all as specified and as directed.

S&F in replacement of `V' belt size B-67 complete all as specified and as directed.

S&F in replacement of `V' belt for fan motor size B-95 complete all as specified and as directed.

S&F in replacement of `V' belt for fan motor size B-92 & B-80 complete all as specified and as directed.

S&F in replacement of `V' belt for fan motor size B-58 complete all as specified and as directed.

S&F in replacement of `V' belt for fan motor size B-130 complete all as specified and as directed.

S&F in replacement of `V' belt for fan motor size B-88 complete all as specified and as directed.

S&F in replacement of pressure gauge 0-225 PSI with sighflon and ball valve complete all as specified and as directed.

S&F in replacement of pressure gauge 0-20 KG PSI with sighflon and ball valve complete all as specified and as directed.

S&F in replacement of pressure gauge 0-16 KG PSI with sighflon and ball valve complete all as specified and as directed.

S&F in replacement of pressure gauge 0-200KG PSI with sighflon and ball valvecomplete all as specified and as directed.

S& in replacement of temprature gauge 0-50 degree complete all as specified and as directed

S&F in replacement of 'Y' stainer 50mm brass suitable for 3x26 AC plant complete all as specified and as directed.

S&F in replacement of 'Y' stainer size 100 mm brass suitable for 3x26 AC plant complete all as specified and as directed.

S&F in replacement of cooling fan motor/condensor fan motor capacity 4.00 KW including electrical connections and wiring etc complete all as specified and as directed.

S&F in replacement of cooling fan motor/condensor fan motor capacity 2HP including electrical connections and wiring etc complete all as specified and as directed.

S&F in replacement of non return valve size 100mm dia with gas kit complete all as specified and as directed.

S&F in replacement bellow valve (round type) size 100 mm dia complete fixing all as specified and as directed.

S&F in replacement of control panel of compressor unit suitable for 3x26 TR AC plant complete all as specified and as directed.

Taking down old unserviceable scroll type compressor of capacity 12 TR to 13 TR including supply and replacement of same capacity of compressor with proper control wiring and testing with satifaction level all as specified and directed by Engr-In-Charge.

S&F in replacement of flow switch suitable for AC plant all as specified and directed by Engr-In-Charge.

S&F in replacement of CPM board suitable for 3x26 AC plant all as specified and directed by Engr-In-Charge.

M & L for dismantling burnt out three phase, 50 C/S capacity 20 HP AHU motor for rewinding with same guage, weight and same number of turns of super annealed copper wire including paper/tape of approved quality and varnishing with Class I varnishing compound including heating and re-assembling the motor, testing and commissioning after repair including replacement of worn out bearing complete all as specified.

All as per item above but motor capacity 15 HP.

All as per item above but motor capacity 10 HP.

All as per item above but motor capacity 5 HP.

Servicing of chiller pump 2-5HP 3 phase 415 Volt of Make:M/s Kirloskar including replacement of unserviceable bearing bush with testing and commissioning complete all as specified and as directed.

M&L for Cleaning / servicing the cooling coil of AHU AC plant by pressure air method with using air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely and applying one coat of synthetic enamelled paint inside the base tray, including greasing to AHU blower shaft bearing for smooth functioning, cleaning the AHU filter replacement of V-belt ( if required) of 3x26 TR capacity at Mechanical block complete all as specified and as directed.

M&L for Cleaning / servicing the cooling coil of AHU AC plant by pressure air method with using air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely and applying one coat of synthetic enamelled paint inside the base tray, including greasing to AHU blower shaft bearing for smooth functioning, cleaning the AHU filter replacement of V-belt ( if required) of 3x25400CFM capacity at Avonics block complete all as specified and as directed.

M&L for Cleaning / servicing the cooling coil of AHU AC plant by pressure air method with using air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely and applying one coat of synthetic enamelled paint inside the base tray, including greasing to AHU blower shaft bearing for smooth functioning, cleaning the AHU filter replacement of V-belt ( if required) of 1x16200CFM & 3x16500 CFM capacity at Avonics block and Rotable complete all as specified and as directed.

M&L for Cleaning / servicing the cooling coil of AHU AC plant by pressure air method with using air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely and applying one coat of synthetic enamelled paint inside the base tray, including greasing to AHU blower shaft bearing for smooth functioning, cleaning the AHU filter replacement of V-belt ( if required) of 1x19000CFM capacity at Avonics block complete all as specified and as directed.

Supply only Refrigerant gas R – 407 C as and when required for AC plants of various capacity following capacity complete all as specified and as directed.

M&L for taking down of fan hub assebly from existing cooling tower of any AC plant and bring to workshop for repair and welding, soldering , aligment and polishing than refixing at same position complete running condition all as specifed and directed by Engr-In-Charge

S&F in replacement of HMI , V4 , 5-30 A model SCR 72/78/84 TR suitable for 3x78 TR AC plant complete all as specified and as directed.

S&F in replacement of PCB board Model SCR 72/78/84 TR-V4 , 11VAC-0.13 VAC all as specified and directed by Engr-In-Charge.

S&F in replacement of PCB control board suitable for 3x36 TR AC plant at rubber store all as specified and directed by Engr-In-Charge.

S&F in replacement of CPM control board suitable for 3x36 TR AC plant at rubber store all as specified and directed by Engr-In-Charge.

S&F in replacement of PCB control board suitable for 45 to 50 TR AC plant at rubber store all as specified and directed by Engr-In-Charge.

S&F in replacement of display control board suitable for AHU 45 to 50 TR AC plant all as specifed and directed by Engr-In-Charge.

S&F in replacement of Single phase preventor suitable for centralaised AC plant all as specified and directed by Engr-In-Charge.

S&F in replacement water balancing valve size 125 mm dia all as specified and directed by Engr-In-Charge.

S&F in replacemnt of ball valves size 20 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of condensor DP flow switch Suitable for 3x78 TR AC plant all as specified and directed by Engr-In-Charge.

S&F in replacement of chiller DP flow switch Suitable for 3x78 TR AC plant all as specified and directed by Engr-In-Charge.

S&F in replacement of pre filter size 610x610x50 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of pre filter size 305x610x50 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of pre filter size 305x305x50 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of pre filter size 450x450x50 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of pre filter size 450x150x05 mm all as specified and directed by Engr-In-Charge.

S&F in replacement of condensor fan motor 2 HP capacity suitable for 3x36 TR ac plant all as specified and directed by Engr-In-Charge.

M&L for takingdown blower unit of any AC plant from existing position by removing of fall ceiling without damage and bring to workshop for repair/servicing tottaly rewinding. Replacing of unsv spare parts and bring back to same location and fixing at same location complete all as specified and directed by Engr-in-Charge.

S & F in replacement of over load relay of any capacity suitable for 26 to 78 TR AC plant all as specified & directed.

M & L for descaling the shell & tube condenser of 3x26 TR capacity at by circulating the descaling chemical (scale gun) (HCL acid) through condenser by pressure feeding method after disconnecting condenser water lines, and opening the end covers of both side, brushing condenser water tubing, removing the scales, normalising the copper surface circulation normalising agent and refixing all dismantled parts including replacement of gasket set all as specified . Note :- (a) Descaling of the three unit measuring as one job half yearly

All as ditto as per item No : 64 here in before but 3X30 TR at Rubber store

All as ditto as per item No : 64 here in before but 3X66 TR at Avonics block

All as ditto as per item No : 64 here in before but 3X45 TR at Rotable section

M & L for leak testing of AHU unit cooling coil after pumping down the complete system, isolating the cooling coil from both ends and charging the dry nitrogen gas for pressure leak test, after detecting leak point, release the nitrogen gas, repairing the leak point but means of soldering/brazing and connecting the cooling coil with system, vaccumised the complete system and re-charge the system by refrigerent, testing and commissioning up to satisfactory cooling performance of 3x26 TR capacity at Mechanical block. Note: (i) Refrigerent gas shall be mesaured and paid separately as supply only. (ii) Nitrogen gas required deemed to be inclusive in the quoted rate.

All as ditto as per item No : 68 here in before but 3X30 TR at Rubber store

All as ditto as per item No : 68 here in before but 3X66 TR at Avonics block

All as ditto as per item No : 68 here in before but 3X45 TR at Rotable section

Cleaning/servicing of cooling tower, natural draught type of central AC plant including cleaning inside and outside of water tank, cleaning of nozzles (brass/PVC) , arranging all filters in correct manners, and applying one coat of bituminous paint inside and outside of water tank complete of capacity 26 TR complete all as specified and as directed.

All as ditto as per item No : 78 here in before but 3x78 TR

M & L for repair of existing spray nozzle, GI pipe assembly,Cooling tower,medium grade GI pipe-, sockets, branch pipes-(two metre each )- with welding. by cutting with gas cutter and welding with GI welding rods including supply and fixing of existing dia medium grade complete all as directed.

Preparation of old painted surfaces and applying two coats of synthetic enamelled paint to external surfaces to motors , foundation of motor units- suction & discharge refrigerent pipe line, condenser water pumps with motor & foundation - water pipe line, AHU unit and motor/blower- condensers - of any capacity of central AC plant.

S & F in replacement of HP cut out Type MP - 5 suitable for R - 22 gas complete all as specified and as directed.

S & F in replacement of LP/HP combination cut out MP - 15 Suitable for R 22 gas complete with flare nut complete all as specified and as directed.

S & F in replacement of oil pressure control switch type MP - 55 suitable for R - 22 complete with flare nut complete all as specified and as directed..

S & F in replacement of solinoid pilot control valve type 10 with two / three coil assembly of same model all as specified.

S&F in replacement of thermostatic expansion valve of model MWE - 34 - CP 100 of Make - SPORLAN all as specified.

Supply only refrigeration gas R 22 in manufacturer sealed cylinder. NOTE:- (i) Gas to be supplied in manufacturer sealed container. (ii) Empty containers will be returned to contractor .

Attending compliants of central/package AC of any capacity, rectification of minor deffects and complaints replacement of spare parts and brings to normal working condition all as per directed and specified by Engr-in-charge. Note :- Major spare parts measured and paid separately

S& F in replacement of earth leakage relay suitable for 26 & 78 TR compressor motor starter all as specified & directed. Make: L&T.

Supply & fix replacement of current transformer 100/5 Amps ratio at main panel all as specified & directed.

Supply & fix replacement of ammeter with ratio of 100/5 Amps & all as specified & directed.

Supply and Fixing in replacement of Air cooled condensor out door type with tank and copper tube for discharge line unit assembly including all connected items capacity 13 TR all as specified and directed Make: Blue star

M&L Providing insulation on and around suction and discharge copper tube of size 3/8"/ 5/8" with 6mm thick flexible thermocol heat resistance duly wrapped with sticking tape and finally covered with flexible PVC conduit of 50mm bore complete including taking down existing damaged one all as specified and as directed.

Dismantling existing damaged ducts and Supply, assembly and erection of 24 gauge GI sheet with C & SS rectangular/square duct made out of 'L' shaped hollow profile, duly factory boxed, incl all accessories such as Corner, Cleat, Carriage bolt, hanging rod, Gasket and appropriate sealant on longitudinal joints etc complete all as specified and as directed.

M&L in repairs duct insulation with resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier, thickness of insulation suitable for 40 mm as specified and including the following:- (a)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, taking special care so that all duct joints are sealed against any leakage. (b) Sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) Securing the insulation with and including mechanically fastened nylon/ steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr.

S&F in replacement of grills/diffusers of Existing size for supply air duct made out of CRCA sheet 1.2mm thick, with perforation duly powder coated etc adjustable type(with flow regulating arrangement) all as directed.Make : Microflow ,3C Air Equipments, Deepak cooling control.

Supply and fix in replacement of Galvanised steel, volume control damper/parallel Blade Dampers for rough air system balance with closer control at the individual grills or diffusers for supply air complete of all sizes all as specified and as directed.

Taking down unserviceable MCCB, supply and fixing MCCB 63 Amps 16 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.

Taking down unserviceable MCCB, supply and fixing MCCB 100 Amps 25 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.

Taking down unserviceable MCCB, supply and fixing MCCB 125 amps 25 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.

M&L for air cooled AC Plant (capacity from 25TR to 40TR) inspection and fault rectification carried out by Manufacturer Engineer for releasing out locking setting the programming for proper functioning of AC plant and to rectify other minor/major problems, including Re-programming & rectify faults occured as and when, with all necessary tools and machines and other major problem & faults (faults either software problem or hard ware) including providing new software if software not working properly with all necessary tools and machines. Note :- i)Transportation & loading charge with hiring of machines and equipments are deemed to be included in quoted rates ii) the rate does not includes material cost,material mesured & piad separately under relavent items) iii).The service Engineer shall be from OEM only.

M&L for water cooled cooled AC Plant (capacity from 12 TR to 78 TR) inspection and fault rectification carried out by Manufacturer Engineer for releasing out locking setting the programming for proper functioning of AC plant and to rectify other minor/major problems, including Re-programming & rectify faults occured as and when, with all necessary tools and machines and other major problem & faults (faults either software problem or hard ware) including providing new software if software not working properly with all necessary tools and machines. Note :- i)Transportation & loading charge with hiring of machines and equipments are deemed to be included in quoted rates ii) the rate does not includes material cost,material mesured & piad separately under relavent items) iii).The service Engineer shall be from OEM only.

M&L for package type AC Plant (capacity from 5 TR to 16 TR) inspection and fault rectification carried out by Manufacturer Engineer for releasing out locking setting the programming for proper functioning of AC plant and to rectify other minor/major problems, including Re-programming & rectify faults occured as and when, with all necessary tools and machines and other major problem & faults (faults either software problem or hard ware) including providing new software if software not working properly with all necessary tools and machines. Note :- i)Transportation & loading charge with hiring of machines and equipments are deemed to be included in quoted rates ii) the rate does not includes material cost,material mesured & piad separately under relavent items) iii).The service Engineer shall be from OEM only.

M&L for taking down of unsv control/PCB/display and other any type of board/panel from existing position and bring to workshop/service centere for repair/servicing than bring back to same location than fixing in existing position with staisfactory level working conditions including all electrical connections etc all as specified and directed by Engr-In-Charge.

M&L for repairing of burnt electrical control wiring from panel/outdoor/AHU motor or any elese by providing new wiring with proper marking upto working conditions including taking down burnt/ unsv cable all as specified and directed by Engr-in-Charge.

Neptune Engineers and Builders (BID ID -3352179)

devan enterprises (BID ID -3352564)

LAKSHMI ELECTRICAL ENTERPRISES (BID ID -3348333)

p.chinnasamy (BID ID -3352650)

SUPER COOL (BID ID -3352399)