CERTAIN REPAIR TO CENTRAL AND PACKAGE TYPE AIR CONDITIONING PLANTS AT LCs AREA AND ITR TECH AREA CHANDIPUR

Amount

NOTE (Applicable for all items) :- The bidders/contractors are advised to read tender document & all corrigendum / amendments and General conditions of contracts before entrying/quoting the rates.

M &L for Carrying out cleaning and de-scaling of iron deposited in condenser shell and tube and outside of the shell and tube of condenser by using chemical suitable for Descalling for the condensor unit of the compressor with the help of monoblock pump set , recommended by manufacturer manual of the respective plant by using complete with satisfactory for Capacity 3x26TR central type Scroll chiller AC Plant at PP Buildings , all specified and directed by Engr - in charge. ( Make : Blue Star or Equivalent as approved)

All as per Sl Item No. 1 here -in-before but compressor of capacity 3x27.5 TR at TIC (Knowledge Centre) Buildings (Make : ACCEL or equivalent as approved)

All as per Sl Item No. 1 here -in-before but compressor of capacity 3x 30 TR at AC Magzine Buildings (Make : VOLTAS or equivalent as approved)

All as per Sl Item No. 1 here -in-before but compressor of capacity 3x72/90 TR at Control Center / LC-III Bldg No. 06 (Make : Carrier or equivalent as approved)

Pressure testing / leak arresting , vaccumising with dry nitrogen gas / oil charging, incl replacing the unserviceable strainers all as required and testing complete for the following capacity of central/package type Air Conditioning Plants. Note :- Refregerant Gas R-22 and strainers will be measured and paid seperately under suply only items

Central type AC plant of capacity 25 to 90 TR TR at location/building of ITR tech area and LC area

Package type AC plant of capacity 5.5 TR to9 16.5 TR at any location/building of ITR tech area and LC area .

Supply only for Recharge/Top up refrigerant R- 22 (Mefron) or equivalent in Central type AC Plants of various capacities complete all as directed .

Supply only for Recharge/Top up refrigerant R- 410/413/407C or equivalent in various type of Package/Central type AC Plants of various capacities complete all as directed .

Supply and charging/top up of compressor oil in various central type AC plants, Type : HPL-68 or equivalent as per existing sample (Make : SERVO/INDIAN OIL or equivalent as approved)

M&L for dismantling and overhauling of condenser/Chiller water pump set of capacity 15 HP, dismantling pump and motor separately, cutting the burnt out winding from slots and rewinding the same by existing size and gauge of super enamalled copper wire including varnishing, heating, repairing the insulating materials, repalcing bearings, bushes and remetalling the shaft including necessary heat treatment , and repairing the pump , including replacing the gland packing , bearings and all rusted nuts and bolts, washers and remetaling the Impeller of suitable size and bore for lifting the water from source and reassembling the motor and pump with gland packing includings painting of pump amd motor assambly complete with two coats of super enameled paints over one coats of red oxide, fixing the motor & pump at its position and connecting the suction and delivery water pipe and testing under working conditions, complete all as specified and directed.

All as per Sl Item No. 9 here- in- before but of capacity 12.5 HP squirrel cage induction motor . (Make-Siemens/CG/Kirloskar/Beacon)

All as per Sl Item No. 9 here-in-before but 10 HP capacity.

All as per Sl Item No. 9 here- in- before but 7.5 HP Capacity.

All as per Sl Item No. 9 here- in- before but 5.0 HP Capacity.

All as per Sl Item No. 9 here- in- before but 3.0 HP Capacity.

All as per Sl Item No. 9 here- in- before but of capacity 1.5/2 HP

M&L for repair and servicing to squirrel cage induction motor 3 phase 415V, 12.5 HP Kirlosker make or any others make by dismantling of motor from the pump set removing the stater/rotor separately, cleaning, varnishing, heating and drying re-erecting, aligning with the pump, testing, including replacing the bearing and bush, polishing and re-metalling the shaft including necessary heat treatment. Reassembling the motor and pump with new gland packing, supply and fix new gland nuts, bolts, with gland mounting nuts & bolts washers complete , painting the motor and pumps with two coats of synthetic enamel paint after preparing the surfaces all as directed by Engineer-in-charge. fixing the motor & pump on their own base and connecting the suction and delivery water pipes and testing with proper working condition complete all as directed .

All as per Sl Item No. 16 above but induction motor of capacity 10.0 HP.

All as per Sl Item No. 16 above but induction motor capacity 7.5 HP.

All as per Sl Item No. 16 above but induction motor capacity 5.0 HP.

All as per Sl Item No. 16 above but induction motor capacity 3.0 HP.

All as per Sl Item No. 16 above but induction motor capacity 2/1.5 HP.

Supply Fabricate and fixing of MS angle/MS plate/flat/rod for cooling tower frame, CT fan base, cooling tower ladders, and all supports made out of suitable size along with welding/MS nuts, bolts and washers, hinges, locking arrangement including painting with two coats of synthetic enamel paint over one coat of red oxide primer including removimg existing unserviceable rusted one ,all as specified and directed by Engineer-in-Charge

M & L for dismantling and taking out unserviceable and defective parts of compressor of chiller Units of Central type AC Plants of capacity 25 to 90 TR of any make,and model after disconnecting the discharge & suction line removal of necessary electrical connection etc. Dismantling compressor body complete and carry out the repair work as per the following :- (a) Repairs to crank shaft, connecting rod, piston, piston pin valve plate by remetaling, cutting/grinding and polishing as required and by supply and replacing all spare parts with new one as required and directed. (b) Repairs /fixing by replacing of all new discharge and suction reeds, big end and small end bush, all bearing, all piston rings, capillary drier cum filter with new one all as specified and directed . (c) Repairs/fixing by replacing of all new kinds of gasket, washers, scappring made of Nylon/ Tuflon sheet/ rubber/fibre sheet as required with new one and all as directed. (d) Repair of Oil pump kit by , dismantling and cleaning, greasing oiling along with new gasket all as required and directed. (e) M & L for Repair/replacement of old u/s copper pipe line as per existing size and shape when found leaking/damage at the time of leak check including necessary flairing, brazing as required and replacement of end fittings made of copper including brass flange nuts, brass dead cap and brass pipe as per site requirement and as directed.( Note : - The cost of new Copper pipe is also included in the same job ) (f) Supply and fix in repair of all u/s rusted bolts, nuts and washers of any kind/made of any metalical/any size and shape as per site requirement with new one all specified and directed. (Note :- The cost of all types/sizes of new nuts , bolts and washers are included in the same job. (g) After the repair work re-assembling the plant and check for leak in system with the help of Nitrogen gas. in case of any leak is detected the repair is to be carried out without any extra cost nitrogen/refrigerant gas. (h) After leak repair release Nitrogen and charge with refrigerant gas and testing to be carried out. Note : The cost for Nitrogen gas for Leak test, Charging/top up of Compressor oil and refrigerant gas (R-22) and necessery spares will be measured & Paid separately against ser Items No-2 to 10 and ser items No-19 to 21 of this schedule.

Supply only Suction reed as per existing make and model .

Supply only Discharge reed as per existing make and model.

Supply only Main Bearing as per existing make and model

Supply only Thrust Bearing as per existing make and model

Supply 0nly Piston Pin as per existing make and model.

Supply only Piston as per existing make and model.

Supply only Piston Ring as per existing make and model

Supply only Discharge and Suction Ring as per existing make and model.

Supply only Gasket Set asper existing make and model

M & L for Supply , assembly and erection of GSS duct 120 GSM rectangular/ Square boxed, incl all accessories such as MS Angles frame at ducts joints for support of ducts , corner, cleat, carriage bolt Gasket and appropriate sealant on longitudinal joints etc comlpete of size 20 SWG icluding taking down unserviceable part and all as directed at site .Make :- SAIL/TATA/JINDAL

M&L for exposed duct thermal insulation with 50 mm thick thermocol including other binding like CPRX for fixing/bonding of thermocol and plastic and hassain clothes as covering mterials and finished with cement mortar / lath plaster with the help of wire mess of appropate size and finally painting two coat with suitable materialslike samosan/ distamper or any other water resistance materials to match with existing surface complete all as specified and directed including taking down old unsv materials.

M&L for painting to complete chilled water type Central Air Conditioning plant of 3x 30 TR to 3X90 TR capacity at AC Magzine, including complete chiller unit, compressor, motor, condenser refrigerant pipe, water pipe, chilled water pipe line, AHU, cooling tower, LT panel board complete plant with two coat of synthetic enamelled paint including preparation of surfaces and as per colour code all as specified and directed by Engineer - in - charge .

All as per Sl Item No. 35 above but for 3X 27.5 TR chiller type AC Plant at TIC Building.

Servicing of electric control panel/compressure control pannel board by taking out the burnt wire. Supply & fixing new wire of existing specification with clipping and socketing and dressing properly complete including replacement of the unserviceable spares. Note-U/S spares to be measured and paid seperately as supply only items under this schedule .

S&F in repair oil seal, O ring, carbon bushing of shaft of central Type AC Plants compressor of 27.5 TR capacity . (Make-ACCEL, model-SMC-8-65 or equivalent as approved)

All as per Sl Item No. 38 above here in before but 30/35 TR capacity. ( Make-VOLTAS/ACCEL)

S&F MS pipe 100 mm dia heavy grade with all fittings laid in floors or fixed to walls and ceilings including taking down old MS pipe for Central AC Plant (Make : Tata steel/Jindal steel)

S&F MS pipe 80 mm dia heavy grade with all fittings laid in floors or fixed to walls and ceilings including taking down old MS pipe for Central AC Plant (Make : Tata steel/Jindal steel)

S&F MS pipe 65 mm dia heavy grade with all fittings laid in floors or fixed to walls and ceilings including taking down old MS pipe for Central AC Plant (Make : Tata steel/Jindal steel)

S&F in repair for Insulation of M S Pipe with PUF slab 30 mm thick and including applying bituminuous/CPRX compound and AluminiumI cladding sheet with 26 gauge complete for size 65 mm dia MS pipe

S&F in repair for Insulation of M S Pipe with PUF slab 40 mm thick and including applying bituminuous/CPRX compound and AluminiumI cladding sheet with 26 gauge complete for size 100 mm dia MS pipe

S&F in repair of refillable type drier filter suitable for central type AC Plant of capacity 26/27.5 /30/35 TR capacity. (Make: Voltas/carrier/Accel)

S&F in repair V Belt (A-52) for compressor motors ,CT fan motors, and blower motors (Make-FENNER/PALYP).

All as per Sl Item No. 46 above but for B-84 V belt.

All as per Sl Item No. 46 above but for B-86 V belt.

All as per Sl Item No. 46 above here-in-before but for C-105 V belt.

All as per Sl Item No. 46 above here-in-before but for SPA-1120 V belt.

S&F in repair entering water temperature(EWT) sensor suitable for 26 TR scroll type AC Plant.(Make: Blue star as per existing model ).

S&F in repair leaving water temperature(LWT) sensor suitable for 26 TR scroll type AC Plant.(Make: Blue star as per exixting model).

Supply and fixing of of PVC Fills of size (600x300x150mm), blue colour, sutable for any type of cooling tower of central air conditioning plant

S&F in repair electronic timer 3-30 sec ,5 A,24 volt AC (Cat No.HODT2COZ of GE or equivalent)

S&F in repair power contactor model no. MNX 25 for AC circuit with AC Coils voltage 220 Volt ,over load relay 25-45 Amps. (Make:Cat No.-CS94110 - L&T )

S&F in repair power contactor model no. ML 3 for AC circuit with AC Coils voltage 220 Volt ,over load relay 10-25 Amps ( Cat No.- SS90721,and 2NO+2NC front mounted block. (Make- L&T or equivalent as approved)

S&F in repair power contactor model no. ML 1.5 for AC circuit with AC Coils voltage 220 Volt ,over load relay 10-25 Amps (Cat No.- SS91851KOOO,and 2NO+2NC front mounted block. (Make- L&T or equivalent as approved )

S&F in repair air break contactor with one NO & NC. (Make-Model no. 3TF-34 of Siemens or equivalent of L&T)

S&F in repair of single phase preventer 40 Volts in balance VSP II.(Make-Minilec)

S&F in repair power contactor model no. MNX `12E 4 pole 10 Amps for AC circuit with AC Coils voltage 220 Volt , Make L&T

S&F in repair power contactor model no. MNX-12 4 pole 10 Amps for AC circuit with AC Coils voltage 220 Volt , Make L&T

S&F in repair Safety valve 300 PSI of copper material suitable for 25 TR t0 90 TR capacity Central/package type AC plant( as per existing make and model)

S&F in repair thermometer 0-06 suitable for 25 TR t0 90 TR capacity Central/package type AC plant( as per existing make and model)

S&F in repair Pressure gauge of maximum 20 Kg of pressure suitable for 25 TR t0 90 TR capacity Central/package type AC plant( as per existing make and model)

Servicing and Maintenance including minor repairs and making in serviceable condition of the package type AC Plants of 5.5/7.5/11.0/16.5 TR capacity comprising of all minor parts and machineries including charging of R - 410/407/22 Gas and l when ever required repair and maint of compressor and blower motor Air filters de-humidifying coils lt control pannels , PCB, ducts and accessories of all gauges and meters and keeping in perfect working condution all as specified and directed by the Engr-in-charge .Note : Leak test,refrigerant Gas will be measured and paid seperately under relevent items of schudle if any required .

S&F in repair three phase Control PCB for package type AC plant of 5.5 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair three phase Control PCB for package type AC plant of 7.5 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair three phase Control PCB for package type AC plant of11.0 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair three phase Control PCB for package type AC plant of16.0 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair Air sensor for package type AC plant of 5.5/7.5/11.0 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair Coil sensor for package type AC plant of 5.5/7.5/11.0 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair PVC Cable/wire Connector of size 20mm dia (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair PVC Cable/wire Connector of size 25mm dia (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

S&F in repair fan capacitor of 10+-2% mfd capacity suitable for out door unit of package type AC plant of 5.5/7.5/11.0 TR Capacity, (suitable for Blue Star Make) , all as specified and directed by Engr - in - Charge.

Supply and fixing in repair 2.5 Core 3 Sqmm multistrand copper conductor PVC insulated sheathed flexible cable suitable for connection of package type AC plant.

Supply and fixing in repair 4 Core 10 Sqmm multistrand copper conductor PVC insulated sheathed flexible cable suitable for connection of package/central type AC plant.

Supply and fixing in repair MCB TPN 63 Amps for connection of package/central type AC plant as main incommer

Supply and fixing in repair MCB TP 40 Amps for connection of package/central type AC plant.

Supply and fixing, V belt of suitable sizes for 5.5TR capacity Package type AC plant blower motor . Make : FENNER/Dunlop

Supply and fixing for V belt of suitable sizes for 7.5 TR blower motor Make : FENNER/Dunlop

Supply and fixing for V belt of suitable sizes for 11.0 TR blower motor Make : FENNER/Dunlop

Supply and fixing for V belt of suitable sizes for 16.5 TR blower motor Make : FENNER/Dunlop

M & L for replacement of U/S canvas cloth of package/centraltype AC planrs including provisiong of zip 150 mm lenth for opening and closing arrangements and properlly fasterners with bolts and nuts between the ducts all as directed by the Eng-in-charge

Supply and fixing Flow swithch 25 mm dia suitable for 26 TR central AC plant all as specified and directed by engr in charge .

Supply and fixing GI tubing medium grade with all fittings laid in trenches, floor, roof and wall and tank connection complete including cutting and thereading with all fittings like tee, elbow bend union reducer hex nipple etc and all as required at site for the following sizes :- .

40 mm bore

25 mm bore

20 mm bore

S&F in repairs gun metal gate valve ISI marked with iron wheel head, screwed both ends for iron pipe of following sizes including taking down the unserviceable existing ones :-

40mm bore

25mm bore

20mm bore

Supply and fix in repair PVC Ball valve ISI marked high presssure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed. The following sizes.Make :- Prayag ISI marked High Pressure (HP)

40mm bore (minimum wt 690 gms)

25mm bore (minimum wt 455 gms)

20mm bore (minimum wt 210 gms)

DS ENTERPRISES

M/s LADHANIA BROTHERS

jlenterprise

Bidder Name

DS ENTERPRISES

KRISHNA ENTERPRISES

M/s LADHANIA BROTHERS

jlenterprise