REPAIR MAINT OF CENTRAL AC PLANTS AIR COOLING SYS OF 510 ABW CMVL DCN DABATHWA OF AGE EM WS UNDER GE (U) EMMEERUT CANTT

Amount

Supply & fix in repair MCCB 3P 100 Amps, lcu=16KA, 415 volts, 50hz, AC, with Adjustable Thermal release (0.7 to 1.0 In), fixed magnetic type suitable release for 10.0 In duly connected with copper spreader links and proper size lugs, nuts, bolts and washers for proper connections, all as specified and directed.

All as per item No 1.00 above but 4P 400 Amps, 36KA capacity complete all as specified and directed.

All as per item No 1.00 above but 4P 250 Amps, 36KA capacity complete all as specified and directed.

S & F ( in repairs) Miniature circuit breakers TPN , 16 Amps to 32 Amps , 415 Volts ,50 hz, 10 KA, 'C' curve rating complete all as specified and directed. (Note :- Proper and suitable size cable lugs to be fixed with Miniature circuit breakers are included in unit rate of each Miniature circuit breakers of any rating).

S & F ( in repairs) Miniature circuit breakers TPN , 40 Amps to 100 Amps , 415 Volts ,50 hz, 10 KA, 'C' curve rating complete all as specified and directed. (Note :- Proper and suitable size cable lugs to be fixed with Miniature circuit breakers are included in unit rate of each Miniature circuit breakers of any rating).

Dismantling existing Monoblock pump with motor 3 HP to 10 HP, 3 Phase, 415 Volts, servicing of pump and motor by opening of pump, machining of pump shaft; renewal of gaskets, gland packing, Gun metal bushes; bearing ; greasing of bearing complete all as specified . Note:- Ball bearing renewed and motor winding shall only be measured and paid separately.

Dismantling/ taking down burnt squirrel Cage Induction Motor of following capacity ,1-phase/ 3 Phase, 415V, 1450 RPM of any make from its base and transporting the motor to the Contractor's workshop and back, refixing the motor at site after carrying out the following repairs/ renewals complete all as specified.- (i) opening the side covers and removing the rotor and cutting/ removing the burnt coils / winding from stator. (ii) Cleaning the slots carefully. (iii) Rewinding the stator using super enamelled copper winding wire with same size, number of coils,number of turms/ coils as per data acquired from the old burnt motor, including varnishing two coats, drying and reassembling the electric motor at site. (iv) Testing the coils for there continuity and no current passing through the stator core. (v) Dynamic testing of the rotor and alignment of the main shaft and ensure that no imbalance vibtrations. (vi) Re-assembling the rotor and connecting the end terminals to the terminal plate of the motor, closing the ends with side covers. (vii) Testing and commissioing the electric motor connecting to the electric supply to its full load by connecting the compressor. (viii) Renewal of Bolts, nuts and washers. Note :- (i) Parts renewed i.e Ball bearing shall be measured and paid separately. However filling of grease and oiling extra shall be deemed to be included in Unit rates. (ii) The weight of copper coil provided before varnishing shall be taken for the purpose of payment.

1 HP to 2.5 HP

3 HP to 5 HP

7.5 HP to 10 HP

Supply and fix in repair of ball bearing for electric induction motor of 3 HP to 10 HP capacity as per existing shape and size complete all as specified and directed.

M&L for Dismantling of side cover of Shell and tube type Condensor of Central AC plant, making arrangements to connect the suction and Discharge line to chemical pump, descaling the condensor by circulation of descaling solution and by rodding fitted with nylon brushes of suitable size and circulation of fresh water through condensor till clear water comes from other end including carrying out necessary repairs for 3x12.5TR Capacity plant at 510 ABW all as specified and directed. Note:- .(i) The rate quoted againt this item shall include all the T&P and solutions required .

Supply and fixing finned strip heater, single phase strip heater 3 KW suitable for AC plant including provision of nuts, bolts & washers etc complete all as specified and directed.

Renewal/Topping of non freezing compressor oil N-46 in factory sealed containers in standard packings complete all as specified and directed.

Supply and charging of Refrigerent gas R-407 (c) Non CFC (ecofriendly) in company sealed cylinders of any capacity complete all as specified. (Note:- If the recharge refrigerent gas is leaked within 45 days of running of AC plant, the contractor shall recharge gas (including supply) without any extra cost to department.

M&L for servicing of 4x22 TR air cooled package type Air Conditioner plant by opening the plant, consisting indoor unit-01 No and outdoor Unit-02 Nos with air blower including cleaning Air conditioner internally and externally, cooling coil and condensing units-2 Nos each, washing of filter of IDU with water, and drying in shade, checking and rectifying any oil leak, gas leak in all refrigerent pipes and reassembling the complete units and testing complete all as specified and directed.

M&L for servicing of 3x16.5 TR air cooled package type Air Conditioner plant by opening the plant, consisting indoor unit-01 No and outdoor Unit-03 Nos with air blower including cleaning Air conditioner internally and externally, cooling coil and condensing units-3 Nos each, washing of filter of IDU with water, and drying in shade, checking and rectifying any oil leak, gas leak in all refrigerent pipes and reassembling the complete units and testing complete all as specified and directed.

M&L for servicing of 1x8.75TR air cooled package type Air Conditioner plant by opening the plant, consisting indoor unit-01 No and outdoor Unit-02 Nos with air blower including cleaning Air conditioner internally and externally, cooling coil and condensing units-2 Nos each, washing of filter of IDU with water, and drying in shade, checking and rectifying any oil leak, gas leak in all refrigerent pipes and reassembling the complete units and testing complete all as specified and directed.

M&L for servicing of 2x8.75 TR air cooled package type Air Conditioner plant by opening the plant, consisting indoor unit-01 No and outdoor Unit-02 Nos with air blower including cleaning Air conditioner internally and externally, cooling coil and condensing units-2 Nos each, washing of filter of IDU with water, and drying in shade, checking and rectifying any oil leak, gas leak in all refrigerent pipes and reassembling the complete units and testing complete all as specified and directed.

M&L for servicing of 10x15 TR air cooled chiller type Air Conditioner plant by opening the plant with air blower including cleaning Air conditioner internally and externally checking and rectifying any leakage of water and gas in all refrigerent pipes and including checking and rewiring faulty electrical circuit using 1.5 sq mm FRLS copper conductor of outdoor unit and reassembling the complete units and testing complete all as specified and directed.

Supply & fix in repair including testing of hermetically sealed scroll compressor of 11 TR Air Cooled package type AC indoor unit of 1x22 TR capacities as per site requirement, suitable for 407(c) non CFC refrigerent gas including necessary brazing work to make the system leak proof complete all as specified and directed.

Supply & fix in repair including testing of hermetically sealed scroll compressor of 4.5 TR Air Cooled package type AC indoor unit of 1x8.75 TR capacities as per site requirement, suitable for 407(c) non CFC refrigerent gas including necessary brazing work to make the system leak proof complete all as specified and directed.

Supply & fix in repair including testing of hermetically sealed scroll compressor of 5.5 TR Air Cooled package type AC indoor unit of 1x16.5 TR capacities as per site requirement, suitable for 407(c) non CFC refrigerent gas including necessary brazing work to make the system leak proof complete all as specified and directed.

Supply & fix in repair including testing of hermetically sealed scroll compressor of 7.5 TR Air Cooled package type AC indoor unit of 1x15 TR capacities as per site requirement, suitable for 410a non CFC refrigerent gas including necessary brazing work to make the system leak proof complete all as specified and directed.

Supply & fix in repair including testing of hermetically sealed scroll compressor of 12.5 TR water cooled chiller AC plant of 1x12.5 TR capacities as per site requirement, suitable for 410a non CFC refrigerent gas including necessary brazing work to make the system leak proof complete all as specified and directed.

Repair (including testing) of hermetically sealed scroll compressor of 12.5TR water cooled chiiler AC plant 1x12.5 TR capacities, suitable for 407(c)/410(a) non CFC refrigerent gas including necessary brazing work for making system leak proof and serviceable complete all as specified and directed.

Repair (including testing) of hermetically sealed scroll compressor of 11 TR Air Cooled package type AC indoor unit of 1x22 TR capacities, suitable for 407(c)/410(a) non CFC refrigerent gas including necessary brazing work for making system leak proof and serviceable complete all as specified and directed.

Repair (including testing) of hermetically sealed scroll compressor of 5.5 TR Air Cooled package type AC indoor unit of 1x16.5TR capacities, suitable for 407(c)/410(a) non CFC refrigerent gas including necessary brazing work for making system leak proof and serviceable complete all as specified and directed.

Repair (including testing) of hermetically sealed scroll compressor of 4.5 TR Air Cooled package type AC indoor unit of 1x8.75 TR capacities, suitable for 407(c))/410(a) non CFC refrigerent gas including necessary brazing work for making system leak proof and serviceable complete all as specified and directed.

Repair (including testing) of hermetically sealed scroll compressor of 7.5 TR Air Cooled Chiller type AC indoor unit of 1x15 TR capacities, suitable for 407(c)//410(a) non CFC refrigerent gas including necessary brazing work for making system leak proof and serviceable complete all as specified and directed.

Repair of dehumidifier for 2x8.75TR Package AC plant 230 volt at 2 COY UB area complete all as specified and directed.

Taking down/dismantling of portion of false ceiling for internal cleaning of air ducts with cloths with care and depositing the dust particle in the container, removing the grills/ diffusers, and refixing the grills, diffusers and false ceiling in its original locations including renewal of screws complete all as specified and directed.

S & F ( in repairs) 8mm bore ,17 gauge thick , copper tubing suitable for 250-300 psi discharge for 22 TR,16.5TR,15TR,8.75 TR Capacity AC plant complete all as specified.

S&F (in repair) of PCB complete set including PCB card and control wiring complete all as specified and as directed.

Repair of PCB complete set including allied control wiring for Air cooled AC indoor unit all as specified and as directed.

Supply and fix in repair drier for liquid line suitable for compressor of 16.5 TR , 8.75 TR, 15 TR, 22 TR AC plant complete all as specified.

Supply and fix air pre- filters of suitable size as per site requirement for 1x8.75TR Air cooled Package AC to filter the dust in the air of size 0.3 microns or larger complete as per sample all as specified.

Supply and fix air pre-filters of suitable size as per site requirement for 3x16.5TR,Air cooled Package AC to filter the dust in the air of size 0.3 microns or larger complete as per sample all as specified.

Supply and fix air pre-filters of suitable size as per site requirement for 4x22TR Air cooled Package AC to filter the dust in the air of size 0.3 microns or larger complete as per sample all as specified.

Supply and installation in repair/replacement of 25 mm 'O' class thermal insulation with aluminium cladding complete all as specified and directed.

M&L for servicing of cooling tower of 3X12.5 TR (at 510 ABW ATGM) capacity Central AC by draining out complete water from bottom tank of cooling tower, cleaning of inner surfaces with nylon brushes opening of water strainer from water inlet to condensor after removal of flange and renewal of gaskets and jali after cleaning and removal of all foreign materials and descaling of complete water pipe line with descaling solution complete all as specified.

Renewal of thermostate / temperature control switch suitable for Central/ package type AC plants complete all as specified.

S&F (in repairs) thermostatic expansion valve of 1x5.5 TR working on R-407 (c) NON CFC refrigerent gas (Ecofriendly) suitable for 1x22 TR Air cooled package type AC plant including collecting the refrigerent in the empty cylinders arranged by Contractor at his own resources by any means , cutting, welding, brazing, renewal of gasket, nuts, bolts and washers etc. complete all as specified and directed.

S&F (in repairs) thermostatic expansion valve of 1x5.5 TR working on R-407 (c) NON CFC refrigerent gas (Ecofriendly) suitable for 1x16.5 TR Air cooled package type AC plant including collecting the refrigerent in the empty cylinders arranged by Contractor at his own resources by any means , cutting, welding, brazing, renewal of gasket, nuts, bolts and washers etc. complete all as specified and directed.

S&F (in repairs) thermostatic expansion valve of 1x4.5 TR working on R-407 (c) NON CFC refrigerent gas (Ecofriendly) suitable for 1x8.75 TR Air cooled package type AC plant including collecting the refrigerent in the empty cylinders arranged by Contractor at his own resources by any means , cutting, welding, brazing, renewal of gasket, nuts, bolts and washers etc. complete all as specified and directed.

Renewal of High pressure and low pressure control (HP&LP) switch suitable for(16.5TR) Air Cooled package type AC unit complete all as specified.

Renewal of High pressure and low pressure control (HP&LP) switch suitable for(8.75TR) Air Cooled package type AC unit complete all as specified.

Renewal of High pressure and low pressure control (HP&LP) switch suitable for(12.5TR) Water Cooled chiller type AC unit complete all as specified.

Renewal of High pressure and low pressure control (HP&LP) switch suitable for(22TR) Air Cooled package type AC unit complete all as specified.

Supply & fix in repair of 25mm PVC flexible type pipe suitable for indoor AC plant drain water complete all as specified.

Supply & fixing V Belts of size B-40 to B-60 complete all as specified.

Supply & fixing V Belts of size A-25 to A-50 complete all as specified.

Dismantling wrought iron or mild steel work of any description not otherwise provided for and S&F Fe-290 (Gde E-165) framed work as in gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering, to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing complete

M & L for carrying out complete servicing of AC Plant control panel including checking and rewiring faulty electrical circuit using 1.5 sq mm FRLS copper conductor,renewal of door locks, making all connections to CTs, push button, digital volt meter , digital amp meter and renewal of LED indicator and testing for smooth operation complete all as specified and directed.NOTE:- parts renewed i.e digital Voltmeter and digital Amp meter shall be measured and paid separately. Parts renewed such as LED indicator, door locks and push button must be included in the unit rate by the contractor.

Taking down old unserviceable duct and supply, assemble and erection of PGI sheet of required thickness with TDF flange rectangular/square duct made out of 'L' shaped hollow profile , duly factory boxed , including all accesssories such as corner , cleat, carriage bolt, gasket and appropriate sealant on longitudinal joints etc. complete all as specified and directed.

Renewal of ML4 type power Contactor, 3 pole, 415 V, 50Hz, with auxulary Contact 2 NO+2NC suitable for Non-Inductive or Slightly Inductive ,Resistive Load (AC1- 100 Amps rating )/ Squirrel Cage Motor (AC3- 70 Amps rating ) to match with the existing complete all as specified.

Renewal of MNX32 type power Contactor, 3 pole, 415 V, 50Hz, with auxulary Contact 2 NO+2NC suitable for Non-Inductive or Slightly Inductive ,Resistive Load (AC1- 32 Amps rating)/ Squirrel Cage Motor to match with the existing complete all as specified.

Renewal of MNX18 type power Contactor, 3 pole, 415 V, 50Hz, with auxulary Contact 2 NO+2NC suitable for Non-Inductive or Slightly Inductive ,Resistive Load (AC1- 32 Amps rating)/ Squirrel Cage Motor to match with the existing complete all as specified.

S&F (in repairs) power contactor of current rating 32 Amp 3 pole 415 volt suitable for package type air conditioning plant complete all as specified and directed by Engr in Charge.

All as per item no. 59 above but of current rating 50 Amps 3pole 415 volt complete all as specified and directed.

Renewal of Bimetal overload relay suitable for , Direct Mounting on ML Contactors, (Directly Operated) range up to 15 Amps to match with the existing complete all as specified.

Renewal of Bimetal overload relay suitable for , Direct Mounting on ML Contactors, (Directly Operated) range 15-45/20-65 Amps to match with the existing complete all as specified.

M&L for earthing complete with galvanized steel earth plate electrode 60cmx60cmx6mm thick buried directly in ground earth pit not less than 2.50 mtr deep below ground level with top edge of the plate not less than 1.75 mtr below ground level connected to galvanized earth strip 32x6mm by means of bolts, nuts, check nuts and washers of GI or steel surrounded with adequate quality of charcoal dust mixed with salt on all side of earth plate including Funnel with watering pipe, wire mesh and copper lugs etc as specified and complete earthwork PCC 1:2:4 chamber and RCC 1:2:4 cover including taking down down of old earthing all as shown in electrical plate No 5 and all as specified and directed.

S&F in repair of PHE (Plate Heat Exchanger) suitable for 15 TR AC plant at DCN Dabathwa complete all as specified and as directed.

S&F Galvanised mild steel wire cloth, 0.63mm nominal dia of wire and average width of aperture 1.40 mm and fixed with tinned tacks, or galvanised wire staples for cooling tower complete all as specified and directed

Supply and fix in repair solenoid valve for 10x15 TR AC plant at DCN Dabathwa complete all as specified and as directed.

Repair of remote control of indoor unit of Package AC plant and caliberating the same with with room conditions alongwith making the display and push button intact complete all as specified and as directed.

Repair of voltage stabilizer by tranporting the stabilizer at contractor's workshop and back, and making proper connections at site after carrying out following repairs/ renewal of parts:-(a) repair/replacement of control panel-01 No. (b)renewal of servo control cord- 03 Nos. (c) wiring with suitable gauge complete- 03 Nos. (d) renewal of single phase preventer- 01 No. (e) High/Low voltage cutoff with suitable contactor(40Amps)- 01 No. (f)Testing and commissioning after making proper connections -01 No.

S&F in replacement outdoor Fan motor of capacity for compressor 5.5 to 11 TR AC plant complete all as specified and directed.

M&L for Repairing of induction motor of Air Handling Unit for package type AC plant of any capacity and make at various location complete all as specified and directed.

M&L including jointing, testing and commisioning of XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross section 35 sqmm 4 core complete all as specified and directed.

S&F in repair Gate valve for 100mm dia including nut,bolt, washer complete all as specified and directed

S&F in repair Gate valve for 80mm dia including nut,bolt, washer complete all as specified and directed

S&F in repair of Air Damper with canvas fixed adjacent to indoor unit with allied accessories and testing for smooth operation of AC plant complete all as specified and directed.

Supplying, installation, testing and commissioning of accoustic lining of duct work with 12 mm thick fiber glass (density 48kg/cum) stick using primer hot bitumen and mechanically fastened, covered with RP tissue and 30G aluminum perforated sheet. Accoustic lining shall be rigid board complete all as specified and as directed. NOTE:- (i) Rigid board of fibre glass wool of density 48 kg/m3 to be covered with 32 G perforated aluminium sheet and fastened with sheet by screw and washer with pitch not less than 12 inch

AIRCOM (BID ID -3289995)