REPAIRS AND REPLACEMENT OF FILTERS, UNSV CONTROL VALVES, SERVICING OF AHUS, DESCALING OF CONDENSER, COOLING TOWER, DUCTS AND CONNECTED ACCESSORIES FOR WATER COOLED SCREW CHILLED AIR CONDITIONING PLANT 3 X 200 TON CAPACITY AT PH-I BLDG MH KIRKEE UNDER

Amount

Carrying out annual maintenance of 200 TR water chiller plant by OMC (original manufacturing company i.e Kirlosker) including following routine work .

Quarterly visit by OMC engineer to carryout preventive maintenance checks and also during any breakdown call.

Carry out preventive maintenance to improve the efficiency of the chiller plant

Carry out oil inspection as and when required including testing of the same for the serviceability for better life of lubrication parts and semi hermatic motor.

Checking the set parameters in the controller checking safety fault trips taking control test, contacts cleaning etc.

Checking the actual performance /operationing parameters of the chiller with the help of log reading recorded during the previous month and actual parameter of the chiller

Taking up repair /replacement of parts /spares/driers/oil as required by OMC Engineer.

Servicing, including detail check up and Calibration of relays of microprocessor based Control panel of all three 200 TR AC Plant to keep the same functional all as specified and directed.

Note for item No.1: The following works are deemed to be inclusive in the quoted rate and no extra payment will be provided by the dept.

Refrigent leak test is to be carry out under supervision of OEM or OEM Authorised person.

Any type of special tools / general purpose tools required for the maintainance of the plant to be supplied by contractor

The responsibility of Payment in advance to OMC will be lying on contractor

This contract will cover lifting /shifting of any type material ,up/down the building or shipment cost or freight of any material from site to OMC or any sub venders works.All other charges and transit insurance.

All spare /store required during repair and maintenance which shall be genuine Parts of OEM and measured and paid under relevant item.

Supply and replacing the following defective / worn out spares / controls for the chiller Plant all as specified and as directed of make Kirloskar / voltas / Blue star

Sensor Pressure TI 500, 20 FT for MCS Controller for KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Sensor Temperature TI100 for MCS Controller for KW4 220.17OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Solenoid Modle- EVR 20, Connection Size -1-1-/8 INCH X 1-1/8 INCH ODF, supply 24V AC For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Gasket and O-Ring Kit,Oil Filter For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Solenoid 7/8IN. ODS 110V/10W for KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Non return 36 Bar Flange type for KW4 220.17 on discharge line of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Electronic Expansion, Model-EX8-I21, Connection-1-5/8 ODF For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Suction Strainer F-4 For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Safety, Set PR-21 Bar,size-1" NPT(M)X1"NPT(F), CE Certified as per PPS-NM40011 For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Valve Safety, Set PR-13 Bar,size-1/2" NPT(M)X3/4"NPT(F), CE Certified as per PPS-NM40011 For KW4 220.17 OS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Glass fuse for master Board power supply of Make : Kirloskar/Blue star / Dun-Ham-Bush

Gasket for water nozzle-round flange (Conderser) of Make : Kirloskar/Blue star / Dun-Ham-Bush

Glass for water nozzle (Evaporator) of Make : Kirloskar/Blue star / Dun-Ham-Bush

Pressure relief valve of Make : Kirloskar/Blue star / Dun-Ham-Bush

Current transformer 250/0.2A with AC to DC Converter card and mounting bracket for KW4. of Make : Kirloskar/Blue star / Dun-Ham-Bush

Current sensor of Make : Kirloskar/Blue star / Dun-Ham-Bush

Replacement of PLC Controller and SMPS of Make : Kirloskar/Blue star / Dun-Ham-Bush

Expansion Board and EVD board of Make : Kirloskar/Blue star / Dun-Ham-Bush

PGD O LED Display, Feed Batch of Make : Kirloskar/Blue star / Dun-Ham-Bush

T Lan Card and control fuse and accessories of Make : Kirloskar/Blue star / Dun-Ham-Bush

Cut out switch as per existing size and range Make : Danfoss/ Honeywell / Castle

Repair and replacement of leaking cooling coil of AHU various size of cooling coil as per existing size and material and testing all directed and specified

Supply and fix control transformer with incoming voltage 380/400/420/440 VAC with outgoing 12/24/36/48/110 VAC with Capacity 300 to 600 VA all as per existing plant design and parameter all as directed and specified.

Painting of 200 TR capacity existing cooling tower with existing color all as per directed and specified

M&L for descaling of complete condenser units for central/ package type AC plant Model No : T7FAA48 - 02 MK-1of capacity 200TR by means of adding descaling chemical solution or equivalent in the cooling tower sump of required quantity and circulating the liquid to remove the scales inside the pipes and removing side covers of condenser, cleaning the water tubes by scrubbing with nylon brushes and flusing with fresh water, re fixing the covers, Inlet and out let pipes including replacement of neoprene rubber gasket etc. complete all as specified and directed.

Repairing /servicing and overhauling the centrifugal pump by dismantling the pump coupled with induction motor, opening the pump, inspecting for defects and replacing the worn out parts like gland bush, bearings, gland bolts and nuts,gland packing, gasket, water seal etc including repairs to pump shaft by remetalling, grinding, polishing and reassembling the same and replacing the rusted nuts, bolts, washers etc and coupling with motor testing complete for the following capacity of pumps complete all as specified and as directed.

Chiller Pump 60 HP of Make : Kirloskar

Condensor pump 25 HP of Make : Kirloskar

M & L for taking out the centrifugal pump motor and transporting to work shop, split opeing the motor removing the u/s burnt winding wire, cleaning the slots, re winding with super enameled copper conductor wire of suitable size including insulating materials, varnishing and drying and reassembling and transporting back to site , coupling with pump testing and commissioning all as directed for the following capacities of motors : -

Chiller Motor 60 HP of Make : Kirloskar

Condensor Motor 25 HP of Make : Kirloskar

M & L for taking out the motor and transporting to work shop , split opeing the motor removing the u/s burnt winding wire, cleaning the slots, re winding with super enameled copper conductor wire of suitable size including insulating materials, varnishing and drying and reassembling and transporting back to site, refixing the motor, testing and commissioning all as directed for the following capacities of motors : -

Blower Motor of Cap 7.5 HP of Make : Kirloskar/ Bharat Bijali

Blower Motor of Cap 5 HP of Make : Kirloskar/ Bharat Bijali

Blower Motor of Cap 3 HP of Make : Kirloskar/ Bharat Bijali

Dismantling the covers of cooling tower and the cooling fan blades from the position, electrical connections and taking down the cooling tower motor, split opening the motor, removing the burnt out winding, cleaning the slots re winding with super enameled copper conductor wire of suitable size including insulating materials, varnishing and drying and reassembling and transporting back to site and testing on commissioning of AC Plant 200TR Capacity complete all as specified and directed.

Descaling of cooling tower by dismantling the cooling tower fins removing the scales in the fins, sump by scrubbing with wire / nylon brush and refixing the fins in position including replacing the float valve for supply water line, painting the steel/wooden surfaces with two coats of enamel paint over a coat of zinc oxide primer and testing the cooling tower of AC Plant 200TR capacity complete all as specified and as directed.

M & L for for painting of following pump sets with two coats of approved synthetic enamel paint all as directed . Make : Asian Paints/ Burger / Nerolac

Condenser Pump

Chilled water Pump:

Supply and replace the worn out 'V' belts of blower motor. (Make : Make : Eco drive / fenner / reenolds rubber)

SPA1600 mm

SPA1400 mm

SPA1200 mm

SPB 1600 mm

SPA 1250 mm

SPB 2000 mm

SPA 2300 mm

SPA 1030 mm

Supply only Gas R-407C in cylinder for charging / topping up whenever required including leak testing all ass specified and as directed.

S&F in replacement of double fitted polymer fabric HDPE fresh air filter(Filter class-G3 as per EN 779) washable/cleanable type having efficiency 95% to 99% down to particle size of 20 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, of make Thermadyne/ Pall supralon filter / naveen filter all as specified by of following sizes :-

S&F in replacement of double fitted polymer fabric HDPE fresh air filter(GL-type) washable/cleanable type having efficiency 95% to 99% down to particle size of 5 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, including taking down of make Thermadyne/ Pall supralon filter / naveen filter all as specified by of following sizes :-

500mm x 400 mm x 300 mm bag type filter 5 micron

S&F in replacement of filter "HEPA"(EN-1882) with fibre glass paper filtering media capacited 1000 CFM efficiency 99.97% down to particle size of 0.3 to 0.5 micron aluminium frames box type of size 500x400x300mm including taking down of make Thermadyne/ Pall supralon filter / naveen filter all as specified.

Supply and fix in replacement butter fly valve of dia 100 mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut,bolts washer all as specified. Make CRI, Kirloskar, L & T

Supply and fix in replacement butter fly valve of dia 125mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut,bolts washer all as specified. Make CRI, Kirloskar, L & T

Supply and fix in replacement butter fly valve of dia 150 mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut,bolts washerall as specified. Make CRI, Kirloskar, L & T

Supply and fix in replacement NRV of dia 150 mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut,bolts washerall as specified. Make CRI, Kirloskar, L & T

Supply & fixing in replacement of water pressure gauge 4" dial type with cock 0-7 Kg/Sqmtr all as specified and as directed. Make Emerald/ Wika / Rexroth

Supply& fixing in replacement of refrgerant/ Water Temp. gauge 4" dial type cock 0C to 50 C all as specified and as directed. Make Emerald/ Wika / Rexroth

Supply & fix in repair 3 KW Strip Heater suitable for existing AHU incuding taking down all as directed. Make : Omega / Platinum / finned

Supply & fix in repair 2 KW Strip Heater suitable for existing AHU incuding taking down all as directed. Make : Omega / Platinum / finned

S&F in replacement of following ball bearing suitable for cooling tower motor ,chillar motor,Blower motor,condenser motor etc removing of existing unserviceable bearing of any type or make all as directed. Make : SKF/TATA/FAG/ Nachi

Number - 6204zz

Number - 6205zz

Number - 6206zz

Number - 6207zz

Number - 6208zz

Number - 6304zz

Number - 6308zz

Number - 6309zz

Number - 6311zz

Number - 6313zz

S&F in replacement of following ball bearing model - P212 with housing suitable for AHU Blower etc removing of existing unserviceable bearing of any type or make all as directed.

Supply Erecrtion testing and commissioning in repair O closed cell elastomeric nitrile rubber with aluminum foil laminated on oneside, having thermal Temperaturte, of 20 c as per EN 12667, moisture diffusion resistance factor or u Value of minium 7000 for base insulation material without the foil as per EN 12086, fire performance such that it passes Class 1 as per BS476 Part 7 for surface spread of flame and also fire performance of V0, HB as per UL 94, 1996, density without the foil between 40 to 55 KG/ Cum. the insulation material shall be FM ( factory Mutual) USA approved and dust & fiber free. the Aluminium foil shall be 60 microns thick and its weight shall be 193 gms as per EN ISO 2286-2, tensile strength 90 N/ 15 mm as per EN ISO 527-3 with elongation>10% as per EN ISO 527-3. All complete as specified in particular specification 19 mm thick thermal insulation as directed.

Supply and fix in replacement MCCB of following capacities of Make : L & T, Seimense, Legrand

400A,TP.415V,50 Hz, 36 KA adjustable type

250A,TP.415V,50 Hz 36 KA adjustable type

160A,TP.415V,50 Hz 36 KA adjustable type

125A,TP.415V,50 Hz, 16KA adjustable type

25 to 100A,TP,415V,50Hz,16KA

Supply and fixing 415 Volt 10 kA 'C' curve MCB of TP upto 100 Amps and current carrying capacity in the DB \ Panel all as specified and as directed. of Make : L & T, Seimense, Legrand

Supply and fix in replacement of contactor of following capacities suitable for existing of panel and sample all as directed and as specified. of Make : L & T, Seimense, Legrand

70A, TP with 2 NO + 2 NC

3TF 52 with 2 NO + 2 NC

3TF 54 with 2 NO + 2 NC

Supply and fix in replacement of over load relay following capacities suitable as per the existing sample and all as directed. of Make : L & T, Seimense, Legrand

MN5 of rating 20-33A

Supply and fix in replacement of Fuse holder Suitable for Bolted fuse-links rating 20 Amp suitable as per site requirement all as specified and directed by Engineer-in Charge Make : L & T, Seimense, Legrand

Supply and fix in replacement of Bolted fuse links SG BS type rating 2 Amp to 20 Amp suitable as per site requirement all as specified and directed by Engineer-in Charge Make : L & T, Seimense, Legrand

Supply only Lub oil for Frame 4 comressor Part No . 55.400.81.303 for topping up whenever required all as specified and directed.

Supply and replace the temperature and humidity sensor coupled with actuators all as specified and as directed.

Supply and replace three way mixing /modulating valve (Actuator) of diameter 125 mm proportional linear type, motorised mixing valve BS 4540 PN-10 -PN 40 having manual over ride facility with proportional thermastat/Humodity sensor and interconnecction wiring with 1.5 sq mm copper conductor multi core cable all as specified and directed Make : Honeywell / Rapid / Energy

All as per item no 32 above but of dia 80 mm Make : Honeywell / Rapid / Energy

All as per item no 32 above but of size 50/65 mm dia all as specified Make : Honeywell / Rapid / Energy

Supply and replace unservisable cooling pad in AHU's with necessary supports etc of following size as per OEM

Supply and replace unservisable blower motor base plate sutiable for 5 HP and 3 HP as per site requrment all as directed

Repair and replacement of old unserveacble AHU doors of any size door double skin pannel with pressure injected CFC & HCFC free PUF having 'K' value of 0.02 W/C/m & dinsity of 40 kg/ms pre coated, pre plasticized , galvanized outer and inner skin 0.06mm thick, air tight casing using gasket and self adhesiv,PVC Nylon hinges, handels view port and marine lamp ,limit switch etc of make : Kirloskar / Blue star / Voltas complete all as direct

Supply and Replacement AHU blower DIDW fan blower having out velocity not exceeding S.P.(mm/wg) 50-60 m/s energy effincent fan with double inlet , double with forward or backward curved impeller for high static pressure mounted on aluminum extended side rail base frame, existing AHU of following Make:Kruger

Model : BDB-250-CM D20

Model: KAT"9/9" S D20

M&L for disconnecting and removing oid unserviceable AHU dranage line of MS pipe, S & F of new dranage line of 50 mm dia UPVC Pipe includind all fittings and necessary clamping all as directed and as specified.

Supply & replace unserveacble syphon with cock 3/8" complete all as directed and as specified Make : Sant / H Guru / Poineer

Supply & replace unserveacble HRC fuse 315 Ampscomplete all as directed and as specified. Make : L & T/ Seimense / Havells / Legrand

Supply & replace unserveacble water flow switch complete all as directed and as specified. Make : Pascal / Honeywell / Danfoss / Adcon / Rapid cool

Supply & replace unserveacble flot valve 25 mm complete all as directed and as specified. Make : Parag / Jaquar / Coronet

Supply & replace unserveacble dehumidifier pump 0.75 hp complete all as directed and as specified. Make : Crompton / Kirloskar / KSB / CRI Pumps

Supply & replace unserveacble dehumidifier pump 0.5 hp complete all as directed and as specified. Make : Crompton / Kirloskar / KSB / CRI Pumps

Repair to Microprocessor based control panel display unit for 200 TR AC chiller unit. Make : Kirloskar / Dun-Ham-Bush / Blue star

M&L for descaling of Cooling coil of AHU's of any capacity by means of adding descaling chemical solution or equivalent of required quantity and circulating the liquid to remove the scales inside the pipes and cleaning the water tubes by scrubbing with nylon brushes and flusing with fresh water, re fixing the covers, Inlet and out let pipes including replacement of neoprene rubber gasket if required etc. complete all as specified and directed.

Supply and fix supply air diffuser for the 4-way square supply air ternimal should be in aluminium powder coated construction with easily removble central core & 4-way uniform air distribution. Volume control damper to be of opposed blade, nylon geared with aerofoil blades & blank matt powder coated (Out to out size shall be as per existing with full louvers with required duct connection size (as per opproved layouts) & as per approved sample (Color to match architects requirements) all as specified and as directed following size.

S& F air diffuser for the 4-way square return air ternimal should be in aluminium powder coated construction with easily removble central core & 4-way uniform air distribution.(Out to out size shall be as per existing with full louvers with required duct connection size (as per opproved layouts) & as per approved sample (Color to match architects requirements) all as specified and as directed.

Supply and fix Stainless Steel grill with not more than 12 mm gap between strip to strip and width of each strip is not less than 25 mm and thickness of grill material is not less than 1 mm, material of grill is 316L stainless steel of following Size

625 mm x 230 mm

625 mm x 180 mm

675 mm x 318 mm

Supply, assembly and erection of GI sheet with TDF flange rectangular/square duct made out of L shaped hollow profile, duly factory boxed including all accessories such as corner, cleat, carriage bolt, gasket and appropriate sealant on longitudinal joints etc complete with GI sheet of thickness 22 gauge complete all as specified & directed.

Supply, assembly and erection of GI sheet with TDF flange rectangular/square duct made out of L shaped hollow profile, duly factory boxed including all accessories such as corner, cleat, carriage bolt, gasket and apropriate sealent on longitudinal joints etc complete with GI sheet of thickness 24 gauge complete all as specified & directed.

Chaulya Enterprises

M/S. Niksun Electro-Infra Private Limited

M/s Vijay Airconditioning Pvt Ltd