COMPREHENSIVE MAINTENANCE OF CENTRAL AC PLANTS, CONDENSER PUMP, ELECTRIC PANEL OTHER CONNECTED WORKS AT AF STN BKT

Amount

All as per Item No 1 here in before but AC plant capacity 2X11 TR at DB-01 (Make - Blue star)

All as per Item No 1 here in before but plant capacity 2X37.5 TR at DB-10 (Make - Blue star)

All as per Item No 1 here in before but plant capacity 2X25 TR at DB-11 (Make - Blue star)

All as per Item No 1 here in before but plant capacity 3X37.5 TR at Spl garrage (Make - Blue star)

All as per Item No 1 here in before but plant capacity 3X25 TR heat pump type at 2232 sqn (Make - Daikin)

Material and labour for de-scaling and cleaning of chocked pipes of water circulating lines including service valves, condenser (heat Exchanger) to cooling tower by circulating concentrated de-scaling solution (concentrated hydrochloric acid) mixed with water in suitable proportion till the complete deposits/scale is removed but min 24 hours whichever is later & as ordered, circulating through pump, servicing of valves, cooling tower, water spray assembly, cleaning with suitable size of drill rod, wire brush including dismantling and connecting all dismantled components in proper position after servicing/ overhauling/greasing etc. replacement of packing gasket 3mm thick, nuts, bolts with washer, testing of water line for leakage, complete all as specified and directed for the following capacity Central AC plants:- Note: De-scaling of one condenser/ Chiller will be consider as one job.Each condenser to be carried out as per site requirement & as directed.

Central AC Plant of capacity 3X 25 TR complete all as specified and directed at 2232 sqn

Central AC Plant of capacity 2X 11 TR complete all as specified and directed at WSA

Central AC Plant of capacity 3X 37 TR complete all as specified and directed at Spl garrage

Central AC Plant of capacity 3X 25 TR complete all as specified and directed at DB 2&3

Central AC Plant of capacity 2X 37 TR complete all as specified and directed at DB-10

Central AC Plant of capacity 2X 25TR complete all as specified and directed at DB-11

M&L for repairing and servicing of FRP cooling tower of central type AC plant by dismantaling of cooling tower for removing of top cover and cleaning of PVC fills, choked nozzle, PVC louvers and replacement of rusted nuts,bolts with washer etc and cleaning bottom tank to remove dust and mud and oiling of motor and checking of servicibilityof motor complete all as directed by Engr-in charge for following capacity (Note:- others major spare parts shall be measured separetely as under respective item of " Sch A" as Supply only .

(i) Cooling tower of capacity 60 TR complete all as specified and directed at 2232 sqn

(ii) Cooling tower of capacity 90 TR complete all as specified and directed at Spl garrage.

(iii) Cooling tower of capacity 60 TR complete all as specified and directed at DB-2&3

(iv) Cooling tower of capacity 45 TR complete all as specified and directed at DB-10

(v) Cooling tower of capacity 30 TR complete all as specified and directed at DB-11.

M&L for dismentling / opening air filter ,nuts bolts,tray for AHU general servicing including cleaning of cooling coil from both sides with coil cleaning solution and brushing suitable for AHU ,correcting tension in belts ,checking and correcting allignment of shaft pulley of motor ,cleaning primary & secondary filter ,blower complete of capacity 5000 to 11000 CFM AHU complete all as specified and directed by engr in charge(Note:- others major spare parts shall be measured separetely as under respective item of " Sch A" as Supply only .

M&L for dismentling / opening of top cover of Hot water generator of Capacity 30 to 42 KW and cleaning ,servicing of element ,storage tank etc and refixing and testing for desired temperature complete all as specified and directed by Engr-in charge(Note:- others major spare parts shall be measured separetely as under respective item of " Sch A" as Supply only .

Supply only the following Item of AC Plant mentioned here in before to fixed under Item sr No. 1.01 to 1.06,3.01 to 3.05, 4 & 5 complete all as specified and directed

Temperature sensor for chiller machine of Blue star all as per sample

Water flow switch of model HFS -25 OF Synergy, Honywell or equivalent .

LP/HP control switch as per sample

Filter drier

Safty Valve for condensor

Micro Controller in replacement of old unserviceable microcontroLler (LCD type) complete with internal PCB controller board/ card along with outer (external )display control unit with inclusive of all control wiring /termination etc complete as a single unit for one machine complete in all respect suitable for Blue star chiller machine of capacity 11 to 37 TR,complete all as specified and directed.

Thermostatic expansion valve upto 15 TR

Thermostatic expansion valve for 25/ 37.5 TR

Cooper tube thermister probe of suitable size with sensor

Freon gas pressure gauge of range 0 -100/ 150 PSI, 100 mm dia. Make : IEbig / ACCEL / GURU / WIKA / MAHAVEER

Temperature gauge (Thermometer) suitable for measuring range 0 - 50 oC complete all as specified & directed. Make : Japsine /GURU or superior make as approved by GE

V fan belt A-28/A-32/ Make : Fenner / Hilton/DUNLOP or equivalent

PVC nozzle of size 2 to 3 inch suitable for fixing in cooling tower complete all as specified and directed

PVC filling blocks of size 600mmx300mmx150mm complete all as specified and directed Make: - MIHIR/SUVIDHA/ AVIRATS

Micro Vee filter having dust filteration capacity 95 % efficiency down to 5 microns with necessary fittings to be fitted in AHU of size 600X600 mmcomplete all as directed

Pre filter having dust filteration capacity 90% effiecincy down to 10 micron synthetic non woven ,fire retardant type with aluminium &HDPE mesh of size 600X600 mm

New superior quality canvas including stitching as per existing at site with inspection strip etc complete all as specified and directed

Heating Element of capacity 3/4 KW

Heating Element of capacity 5/6 KW

Heating Element of capacity 7/8 KW

Display unit with sensor for hot water generator with facility auto on/off at set temperature

Refrigerant gas (R-410a)

Refrigerant gas (R407 )

M&L for finding out the leakage and pressure test of the condensor /chiller ckt of AC plant and repair the leakage point by brazing / soldering, charging of refrigerant gas (R-407 / 410 a )testing the AC unit complete all as specified and directed Note;-refrigerant gas shall be measured and paid seperately as 'Supply Only'.

Disconnecting and taking out existing defective compressor of any description and in any position and supplying and fixing new Refrigeration scroll compressor 5.5 TR capacity, three phase, 415 volt capacity including brazing to suction & discharge line, vacuum testing with and including charging of regrigerant gas (R-407) & testing complete all as specified and directed . (Make- Model ZR81KCE-TFD-522 of make EmersionCopeland or equivalent make and model of KCL/Emersion/Danfoss

All as per item No 8 here in before but for capacity 12.5 TR and charging of regrigerant gas (R-407) & testing complete all as specified and directed . (Make- Model SZ185S4RC of make EmersionCopeland or equivalent make and model of KCL/Emersion/Danfoss

Supply & fix in repair of supply air diffuser of powder coated alumunium but without volume control damper as per specification complete all as specified and directed by EIC

Supply & fix in repair of return air diffuser of powder coated alumunium with aluminium volume control damper as per specification complete all as specified and directed by EIC

Dismantling and taking out monoblock Pumping set of capacity up to 7.5 HP for repair/ rewinding of motor and refitting after repair.

Dismantling and taking out Electric motor from cooling tower of capacity upto 3 HP for repair /rewinding of motor and refitting after repair.

Supply only the following Item of Pumping set/Motor mentioned here in before to fixed under Item Serial No. 12 &13 here-in-before, complete all as specified and directed

Ball bearing

GM Bush

S/S shaft

M S coupling

Mechanical seal

Rubber bush & nuts bolts of coupling

Rewinding of motor with super enamelled copper wire of existing gauge of cap 2/3 HP

All as per item no. 14.07 but capacity 5 HP

All as per item no. 14.07 but capacity 7.5 HP

Repair of electric panel by checking defects including required insulation tape , copper wire of 1.5/2.5/4 sqmm ,checking connection to condensor pump ,chiller ,cooling tower ,AHU ,including contact s with NO/NC with required accessories complete checking of main panel of ac plant for safe operation of AC plant with replacement of defective items making serviceable condition.Note - Defective items to be measured and paid seperately under "Sch A" as Supply only:-

Supply only the following Item of AC Plant electric panel mentioned here in before to fixed under Item sr No. 15 complete all as specified and directed

Three pole power contactor with 01 NO + 01 NC auxiliary contacts for AC Circuit with AC coil voltage 220 grade, 50 Hz having current rating (AC3) of 09 Amps, . Make : L&Tof model MNX type or equivalent of Siemens / Control & Switch gear.

All as per Item No 16.01 here-in-before but for having current rating 12 amps

All as per Item No 16.01 here-in-before but for having current rating 18 amps

Three pole power contactor with 01 NO + 01 NC auxiliary contacts for AC Circuit with AC coil voltage 220 grade, 50 Hz having current rating (AC3) of 12 Amps, . Make : L&Tof model MO type or equivalent of Siemens / Control & Switch gear.

All as per Item No 16.04 here-in-before but for having current rating 25 amps

Thermal over load relay of various ranges from 9 Amps to 42 Amps .Make : L&T of model MN type/ or equivalent.

Thermal over load relay of various ranges from 9 Amps to 42 Amps .Make : L&T of model RTO type / or equivalent.

Single phase preventer, auxiliary volts 415 volts, Make- Minilec, L&T or equivalent

Electronic timer suitable for range 3-30 Seconds . Make : L&T / Havells or equivalent

MCCB, 160 Amps, 4 Pole, 415 Volts having breaking capacity Icu = ICS 100% = 25KA with adjustable thermal setting including mounting arrangement on panel complete all as specified & directed. Make :Legrand /L&T/Control & Switch gear

All as per Item No 16.10 here-in-before but for capacity 250 Amp 4 pole 35 KA

All as per Item No 16.10 here-in-before but for capacity 100 Amp 4 pole 16 KA

All as per Item No 16.10 here-in-before but for capacity 63 Amp 4 pole 16 KA

All as per Item No 16.10 here-in-before but for capacity 25 Amp 3 pole 10 KA

All as per Item No 16.10 here-in-before but for capacity 100 Amp 3 pole 16 KA

MCB, 32 Amps, 3 Pole, 415 Volts 50 HZ, 10 KA breaking capacity complete all as directed.Make :Legrand /L&T/Control & Switch gear

All as per item no. 16.16 here in before but MCB TPN 32 amps

All as per item no. 16.16 here in before but MCB TPN 63 amps

Push Button Red/Green complete all as specified and directed.

Lamp holder Red/Green complete all as specified and directed.

Contactor NC1 type, three pole power contactor with 01 NO + 01 NC auxiliary contacts for AC Circuit with AC coil voltage 220 grade, 50 Hz having current rating (AC3) of 40 Amps . Make : L&T or equivalent .

Taking up or down cast iron butterfly valve of any description and supplying, fixing and testing new butterfly valve of 80 mm bore in existing pipe line after necessary cleaning etc. complete all as specified and directed :- ( Make:- Castle/Zoloto/ Sant/Venus )

All as per Item No 17 here-in-before but for size of 65 mm bore

All as per Item No 17 here-in-before but for size of 50 mm bore

S&F Electrical Insulating rubber mat of size (2 mtr X1 mtr X3mm ) tested for LT Voltage1100 Volts complete all as specified and directed by Engr-in - Charge.

Dismantling of old broken GI sheet cladding over the duct outside the building and M&L for 26 gauge Alumunium sheet cladding complete over the duct outside the building complete all as specified and directed by Engr in charge

Dismantling of old broken plaster insulation and M&L for External thermal insulation to supply and return airduct laid outside the conditioned space/ room with Closed Cell Class O Nitrile Rubber Elastomeric Insulation of 19 mm thick Density 40 - 55 Kg/m3, Thermal Conductivity of 0.037 W/mk at 200 Celcius Mean Temp. and μ≥7000 (without any additional vapour barrier) and with Factory Laminated aluminium foil of minimum 60 microns thickness to be applied on Ducts using manufacturer's recommended Rubber based Adhesive in a blend of solvents complete and finally finished with 26 gauge almunium sheet complete to make it wheather proof all as specified in particular specification

Dismantling of old broken plaster and Material and labour for insulation of 32 mm bore M S pipe with 30 mm thick fire retardant quality expanded polystyrene moulded pipe section with and including applying bituminuous compound and finnaly finished with 26 gauge GI cladding complete with all accessories comprising contorl valves like butterfly valves, balancing valves, Y- strainers, non return valves, pressure gauges, needle valves, themometers, water flow switches, suitable EPDM bellwos etc including excavation, refilling making good the excavated surface wherever reqired at site .

All as item No 23 here in before but for pipe size 50/65 mm bore pipe.

S&F electronic digital Hygrometer thermometer one at plant room and another tepmerature and humidity sensor at conditioned room connected trough wire or communication medium (range 60 mtr minimum) to display inside and outside temperature in celcius and humidity complete all as specified & directed.

M&L for earthing complete with GI electrode 600 mm x 600 mm x 6.00mm thick buried directly in ground vertically in pit of depth not less than 2.25 mtr below normal ground level with top edge of the earth plate not less than 1.50 mtr below normal ground level connected to GI strip 32 mm x 6 mm as earthing lead by means of bolts, nuts, check nuts and washers of brass connected all as specified including excavation and earth work and disposal of surplus soil including 40 mm dia GI tubing light grade and necessary fitting for protection of GI strip including laying of charcoal, dust and common salt PCC (1:2:4) type B-I (using 20 mm graded crushed stone aggregate) earth pit with 40 mm x 40 mm x 6mm ,40 mm thick pre- cast RCC cover (1:2:4) type B-1 ( using 20 mm graded crushed stone aggregate ) reinforced with 8mm diaTMT bar @ 75mm c/c both way with mild steel handle 12 mm dia round bar ,15 mm thick plastering in cement mortar (1:6) internally and upto 150mm below ground level externally, funnel with wire mesh 20mm dia GI pipe for watering complete all as shown on electrical plate No.03 of SSR Part- 1( 2009 )and connected in earth test including testing completed all specified and directed. NOTE :- (i) The rates quoted shall also deemed to include the cost of Earth test point and earth strip and protection pipe upto 7.5 meter beyond the earth plates electrode and the earth resistance of the whole system shall be as near as possible to 0 but shall not in any case exced five ohm.

M&L for digital printing on 5 mm thick Acrylic sheet wih aluminium bidding with provn of eyelids specified font size ,color of letter all as specified & directed by Engr-in-charge.

M&L for Preparing old painted steel and metal based surfaces such as motors, AHU’s refrigerant water piping base plates, motors, AHU’s cable duct, MS channel, make up water tank, cooling tower, condensors, condensor pipe lines, etc of any shape, size and description, removing oil, dust & rust by using sand paper or any method on all types of surfaces, filling cavities if any and applying one coat spray painting with synthetic enameled paint of approved quality (All as per E-in-C’s colour code) with and including writing E/M & MES Nos, marking arrows / feeders name neatly on each machine complete of AC Plant at WSA of size 2 X 11 TR complete all as specified and directed by Engineer-in-Charge

All as per item No. 28 here in before but for AC Plant of size 3 X 37 TR located at special garrage.

All as per item No. 28 here in before but for AC Plant of size 3 X 25TR located at DB-02 & 03.

All as per item No. 28 here in before but for AC Plant of size 2 X 37.5TR located at DB-10.

All as per item No. 28 here in before but for AC Plant of size 3 X 25TR located at DB-11.

S&F in repair of existing cooling tower motor with fan blade complete of capacity 3 hp ,3 Phase copper wound complete same as existing on site complete all as specified and directed by EIC.

S&F in repair XLPE insulated 1100 volt grade 4 core 6 sqmm heavy duty unarmoured aluminium coductor laid through suitable saddle complete all as specified

S&F in repair XLPE insulated 1100 volt grade 3 core 2.5 sqmm heavy duty unarmoured aluminium coductor laid through suitable saddle complete all as specified

S&F in repair XLPE insulated 1100 volt grade 4 core 10 sqmm heavy duty armoured aluminium coductor laid through suitable saddle complete all as specified

S&F in repair electronic fire damper motor complete with electronic smoke/ fire sensor including electrically operated actuator complete all as specified and directed

S&F digital temperature meter with Red display including temperature sensing probe of suitable size complete all as specified

S&F digital hygrometer with Red display including humidity sensing probe of suitable size complete all as specified

Supply, Install, testing in repair of 3 Way Mixing Valve modulating proportional linear type motorised mixing valve having manual over ride facility with proportional thermostat and wiring with 1.5 sq mm copper conductor multi core armoured cable, 3 way valve suitable size required at site in AHU including actuator of suitable size complete with transformer etc including Electrically controlled /operated control such as humidistat ( to control humidity) and stand alone micro controller based LCD proportionate temperature controller (to control 3 way modulating mixing valve) along with all equipment and accessories including 230V/24 V class 2 transformer complete all asspecified and directed

M&L in repair for erection of GI sheet with 0.63 mm thickness fabricated galvanised sheet metal rectangular /round ducting complete with neoprene rubber gaskets, elbows,splitter damper vanes,hangers, supports,including all acessories such as corner,cleat,carriage bolt,gasket,and appropriate sealant on longitudional jointsetc complete including taking out old U/s ducting all as specified and directed.

Supply, fixing, testing in repair Non return valve with dual plate of CI body, Stainless steel plates, vulcanised NBR seal flanged ends and PN 1.6(16 bar) Pressure rating for water circulation for fixing to 80 mm pipe complete all as specified & directed.

All as per Item No 38 here-in-before but for fixing to 65 mm pipe

All as per Item No 38 here-in-before but for fixing to 50 mm pipe

Supply, installation, testing and commissioining in repair of FRP cooling tower of suitable heat rejection capacity with FRP water basin PVC fills, water distribution arrangement with self rotating sprinklers or fixed nozzles of PVC construction, statically and dynamically balanced axial flow fan direct driven, TEFC energy efficient motor conforming to IS 12615, suction screen, make-up and quick fill arrangement, overflow and drain connections, suitable GI inspection ladder, steel supporting structure, antivibration mounting etc, complete of capacity 25 TR,including dismenteling & taking out old cooling tower all as specified and directed.

M&L for under deck insulation with with Resin Bonded Fibre glass wool density 24 kg/m3, 60 mm thick, wrapped in 200 G Virgin polythene bags fixed to ceiling with metallic cleats(50 mm x 50 x 3 mm ) @60 cm centre to centre and wire mesh of 12.5 mm x 24 G wire mesh for top most ceiling of the building complete all as specified & directed.

Supply and fixing Accoustic insulation lining on wall of AHU Rooms with 50 mm thick, 32 kg/m3, rigid bonded fibreglass. Accoustic insulation shall be fixed in 610 mm x 610 mm frame work made out of 0.6 mm thick GI sheet, U shaped channel and covered with reinforced fibre glass tissue paper and finished with 0.8 mm thick perforated aluminium sheet including aluminium beading of 25 mm wide and 1.00 mm thick fixed on all horizontal and vertical joints by means of screws etc complete as required and as specified.

Supply and fixing GI strip of size 25 X 3 mm with saddle and insulator and including fixing accessories all as specified and directed

M&L for fixing of 25 mm gun metal globe or gate valve with Iron wheel head screwed both end for Iron pipe complete all as directed.

M/s Hanspal Enterprises (BID ID -3078938)

FUTURE Inc. (BID ID -3079862)

VISHAL TRADERS (BID ID -3092594)