REPAIR/ MAINT OF STATION SWIMMING POOL AND ALLIED WORKS AT VARIOUS PUMP HOUSES AND ROUTINE MAINT OF AC PLANT UNDER GE (AF) BAMRAULI

Amount

M&L for Dewatering of under ground sump, cleaning of residual water, fungies, liquid mud, cleaning tiles of side wall and bottom surface of swimming pool approximately 700 sqmm area with the help of soft nylon brushes and acid without damaging any tiles laid in swimming pool including cleaning of joints between tiles and refilling white cement/ apex solution between the joints and and removing dirty materials away 50 mtrs distance from the swimming pool and after cleaning the under ground sump refilling with water available from pump house of department (as required at site) complete all as specified and directed. Note :- Acid measured and paid separately under respective item of schedule “A”

Supply and mixing calcium Hypo chlorite 65% to 70% chlorine content in granular disinfectant for water treatment, more suitable than chlorine gas and stronger than bleaching powder and sodium hypochlorite packed in 45 Kg sealed container complete all as specified and directed Make-Puri chlor brand of M/S Sree Rayalaseema Hi-Strength Hypo Ltd or equivalent in M/S Grasin Industries Ltd (chemical division)

Supply and mixing T.C.C.A -90 Chlorination granules as oxidizing agent for swimming pools and ensuring the correct proportion of the agent for treatment of water all as specified and directed by Engr-in-Charge.

M&L for repairing of suction sweeper by dismantling its pump and motor, rewinding of motor 3 HP including replacement of worn out parts of pump such as bearing, impeller, bushes etc including repairing of trolley by replacing rusted angles, wheels etc, welding/soldering properly and painting with two coats of synthetic enamelled grey colour paint complete and other minor parts not specifically mentioned shall also be replaced where required for proper functioning of suction sweeper including replacement of the following unserviceable parts complete all as directed :- (a) Impeller - 01 Nos, (b) Bearing front/Rear - 02 Nos, (c) Brushes - 01 Nos

M&L for filling of compressor oil of air compressor complete all as specified and directed.

Cleaning the surrounding area of Swimming pool by cutting removing the grass, shrubs, bushes around swimming pool and installations at Tech Area, South Camp and North Camp all as directed by Engr-in-Charge and removing from the campus complete all as specified and directed. Note : 1. This particular job to be operated through out the contract period to maintain the cleanness of the surrounding area of the installation by removing the shrubs/bushes and grass to the entire satisfaction of the Engineer-in-Charge and the periodicity of this item shall be decided by Engineer-in-Charge.

Supply and mixing stable bleaching powder in sealed container/bags (ISI marked) 30% chlorine.

Supply and mixing alum (ferric)

Supply acid for cleaning swimming pool as per srl No 2 above

Supply and mixing copper sulphate (flakes)

Supply and lay Nylon rope

S&F in repair, CI foot valve 150mm dia IS-4038 and taking out old unserviceable valve and removal complete all as specified and directed.

M&L for rewinding of electric motor of any make, 5 HP 3 phase, 415 volt, with best quality PVC insulated heavey duty copper conductor of suitable gauge/size matching to existing straightening and repairing of starter slots including insulating materials complete all as specified and directed. NOTE :- The rate quoted by the contractor considering the old retrieved materials which shall be the contractor property after considering credit under credit schddule.

M&L for cleaning of over head tanks of capacity 10000 Gallons to 100000 gallons comprising of the following operations :- (a) Dewatering of the tank shall be carried out with gravitational flow. (b) Removal of left over dirty water and sludge shall be carried out. (c) Cleaning of overhead reservoir completely with bleaching powder and internal walls, floor, ceiling of tank shall be carried out by high pressure water jet. Pressure of machine shall not be less than 80-120 bar and ensure that no dirt, algae or moss remain on surface of tank. (d) Date of cleaning and capacity of tank will be written on OHT with white paint in a black painted square of suitable size in obliterating old writing of any description with paint to match existing works with letters or figures (Block, Roman or Indian) size of each letter will not be less than 5cm.

M&L for preparation of old painted surfaces by scraping down, cleaning and applying two coat of synthetic enamel paint to AC installation central type AC plant (package chiller water cooled) 2x50 TR all as existing colour code including sign writing as directed (AC installation comprising of compressors,mono block pumps & motors, condensers, pipe line, hot and cold pipe lines, cooling tower,AHUs, and display board) including marking direction of flow and writing SM / MES Nos of size not less than 25mm with black paint . Note : (i) Due care shall be taken to avoid paint sprinkles on glass parts, floor, air filter etc loose parts to be removed and re-fitted after cleaning (ii) Cleaning all paint sprinkles and marks shall be the responsibility of contractor.

M&L for Servicing of FRP cooling tower of central type AC plant including, cleaning of inside of heads, pipe, nozzles, greasing/oiling of cooling tower motor with fan , cleaning inside tank etc and Cooling tower sprinklers, pipes, etc. shall be inspected and attended for proper spray and repair/replacement shall be done for which nothing extra be paid complete all as specified and directed.

M&L for overhauling & servicing of AHUs Make ZECO capacity 15000 cfm and carry out of following tasks once in three months minimum and records be maintained.: (i) Open fan section cover AHU; check belts for wear and tear. Replace if necessary, check bearings and alignment of belt drive. Refit the fan section.(ii)Inspect cables for loose/loaded terminal, rectify if necessary. (iii). Checking the system for leaks and then rectifying leaks, if any.(iv)Check AHU motor mounts for undue vibrations. Replace mounts if necessary.(v) Lubricating/greasing the bearings of blower motor and replace bearing or bush if neccessary (vi) Carry out chemical cleaning AHU coils. (vii)The air handling unit filters shall be inspected and cleaned regularly.

M&L for overhauling and servicing of monoblock pump set of 5.0 or 7.5 HP capacity make kirloskar and carry out the following tasks all as specified and directed. (i). Disassemble the pump.(ii). Inspect it.(iii) Replace worn parts. (iv) checking water seal Note: Replacement of old bearing / bush and water seal complete as per existing are paid sepratily in Sch.

M&L for Isolating the shell and tube of condenser from water pipe line and de-scaling by circulating of concentrated solution of chemical descaler through condensers unit opening of headers and pouring acid inside tubes, cleaning by nylon brush form both side and removing complete scale from tubes and headers with proper care checking of leakage, replacement of headers gasket of both side connecting, testing including leakage detection in shell or tube condenser if any and rectification to be carried out with proper testing all as specified and directed by Engineer-in-Charge for the following :- Note : De-scaling solution shall be measured and paid separately as supply only under respective item of this sch.

M&L for servicing of Water Cooled Scroll Chiller units (Make: Bluestar & Model: XWCS4052AR2 ) with Micro Processor based control panel the same shall be checked regularly for its satisfactory operation and if any electronic parts like PCB,displayunit,wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate.Note:contractor is rsponsible to attend break down immediately for above through out the contract period.

M&L for servicing of hot water genrator (Make : Rapid cool and Model :RC-544) with control panel the same shall be checked regularly for its satisfactory operation and if any electronic parts like PCB,displayunit,wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate.Note:contractor is rsponsible to attend break down immediately for above through out the contract period.

Supply and fixing in replacement of Ammeter size 95mm digital type accuracy class 1.

Supply and fixing in replacement of Thermal over load relay range 0-10 amp .

Supply and fixing in replacement of Single phase preventer as per sample with system supply 415 V AC 50 Hz

Supply and fixing in replacement of Volt meter size 95mm digital type accuracy class 1

Supply and fixing in replacement of V Belt as per sample

Supply and fixing in replacement of Sensor for cutt off switch

Supply only chemical descaler solution(have PH value less than 2.0 at 100% concentration) for cleaning of condensers.

Supply and filling Non Freezing polyolester lubricant oil(POE-160PZ) to top up the scroll compressor .

Supply only Refrigerant gas R-407 in sealed gas cylinder.

Supply and fixing in replacement of water flow switch as per existing model.

Supply and fixing in replacement of Thermostatic expansion valves as per existing model.

S& F in replacement of Y strainer of of cooling tower as per existing sample

Supply and fixing in replacement of strainer filter for hot and cold pipe lines as per existing model.

Supply and fixing in replacement of dry type cleanable and easily maintainable AHUS air filter suported by GI wire as per existing sample of air handling unitcomplete all as directed by eng in charge.

Supply and fixing in replacement of ML-3 power contactor 3 phase equivalent

Supply and fixing in replacement of scroll compressor unit of Make: Danfoss and Model: SZ185S4RC including compressor oil of 12.5 TR capacity by cutting of suction and discharge lines, unscrewing the foundation nuts & bolts etc, supply and fixing of new scroll compressor unit of suitable make as existing by connecting suction and discharge lines with filling of refrigerant gas including welding/brazing work and tightening foundation nuts & bolts etc all as specified and directed.Note:- Refrigerant gas shall be measured and paid separately as supply only under respective item of this sch.

Supply and fixing in replacement of HEAT EXCHANGE PVC fills HONYCOMB TYPE OF SIZE 600X300X150 MM or nearest higher size for cooling tower of AC Plant.

M&L for rewinding of electric motor of AHUs/cooling tower /mono block pump any make 3 phase, 415V, 7.5 or 5 HP with PVC insulated heavy duty superior quality copper winding wires of suitable gauge/size matching to existing, straightening and replacement of U/s spares, cleaning of stator slots properly by using adequate size of sand paper including insulating materials complete all as specified and directed.

Supply, fixing, jointing and testing 80 mm dia cast iron butter fly valve (ISI MARKED) flanged type complete all as specified and directed.

S&F in replacement of round flanged type heater U tube shaped 6 KW 240 volts, single phase 50 HZ complete all as specified and directed.

S&F in replacement of water pressure gauge at suction and discharge side of pump in 4 inch round shape (0-100) LB/IN C2 with U or S shaped steel tube of 12mm dia approx length of 300 with pressure regulator valve brass connected with union reducer to the water supply line by making hole and welding and testing complete all as specified and directed.

S&F temperature meter 6 inch long for condenser suction and discharge as per existing model.

Supply only the following spare parts suitable for monoblock pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified.

Ball bearing

Fan cover

Impeller

Delivery casing

Saft ring

Gland

Rotor with Shaft

Stator

M&L for reapir of worn out shaft of monoblock pumps by welding or lathe maching or as required to remove the bearing endplay all as specified and directed by eng in charge

S&F in replacement MCCB 4 Pole, 250 Amps, 25 KA 415 volt grade complete with sheet metal enclosure and connecting with controller panel all as specified. Make Legrand or equivalent

S&F in replacement MCCB 4 Pole, 125 Amps, 420 volt grade complete with sheet metal enclosure and connecting with controller panel all as specified. Make Legrand or equivalent

S&F in replacement MCB TP , 32-40 Amps, , 10 KA ,C curve 240 volt grade complete with controller panel all as specified. Make Legrand or equivalent

S & F in replacement of 80 mm thick puff slab with aluminium sheets (Polyurathene foam with 1.2 mm thick aluminium chequred sheet) for floor insulation of cold room complete all as specified and directed.Make:- Awantika / blue star / Carrier / Ahata.

M&L for insulation of duct with 25mm thick thermocol, painting with black Japan paint, between GI wire mesh net including covering with aluminium sheet as per sample and making good as per existing complete with covering of all as directed by Engineer-in-charge.

Note :- Credit shown in credit schedule of tender document shall be considered by the tenderer while quoting the rates of various items. The same shall be recovered from various payment to contractor before handing over old material.

M/S SWASTIK BUILDERS

M/S R S Traders

Bharat Trading Company

chauhan construction

Ambrish Builders

M/S Aquarius Construction

bharat construction