REPAIR/MAINT OF CENTRAL AC PLANTS, AHUs, CHILLER, CONTROL CABLES ETC AT ARMY AREA BANAR UNDER GE BANAR

(a) 15 - 20 HP induction motor, 415 V, 50Hz

(b) 7.5 - 10 HP induction motor 415 V, 50Hz

(c) up to 5 HP induction motor 415 V, 50Hz

Taking out unserviceable pipes and supply and fixing Mild Steel medium grade pipe of following sizes including connecting, welding, smoothing and making leak proof incuding MS fittings all as per site requirment and complete all as specified and directed by Engr-in-charges.

(a) 80 mm dia MS pipe

(b ) 100 mm dia MS pipe

(c) 125 mm dia MS pipe

M & L for Insulation of M S Pipe with PUF slab 40 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete of sizes 80 mm bore pipe complete all as specified and directed by Engr-in-charges.

M & L for Insulation of M S Pipe with PUF slab 40 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete of sizes 100 mm bore pipe complete all as specified and directed by Engr-in-charges.

M & L for Insulation of M S Pipe with PUF slab 40 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete of sizes 125 mm bore pipe complete all as specified and directed by Engr-in-charges.

Excavation in trenches in soft soil/loose not exceeding 1.5 metre wide and not exceeding 1.5 mtr depth and getting out. complete all as specified and directed by Engr-in-charges.

Returning, filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm in any type of soil complete all as specified and directed by Engr-in-charges.

Removing excavated material (soil) not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 mtr above the starting point. complete all as specified and directed by Engr-in-charges.

M & L for highly- flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR), laminated with 12 micron aluminium foil facing with reinforced glass scrim tested for service temperature range 0- 105 ˚C Class 0 fire performance as per BS 476 Part 6: 1989, Class 1 surface spread of flame as per BS 476 7: 1997, flammability HB, V-0 as per UL- 94, having good resistance to mechanical impact, excellent resistance to ozone, oil and chemicals, zero ozone depletion potential along with adhesives and other necessary accessories complete all as specified and directed of size 13mm thick insulation complete all as specified and directed by Engr-in-charges.

Supply & fix water pressure gauge 0-150 Kg/sq cm suitable for fixing with 150 mm dia water circulating inlet & out let pipe by means of proper welding and connection with checking the running water pressure complete all as specified and directed by Engr-in-charges.

(a) chiler/condenser pump of Capacity 25 HP

(b) chiler/condenser pump of Capacity 15 -20 HP

(c) chiler/condenser pump of Capacity 7.5-10 HP

(d) chiler/condenser pump of Capacity upto 5 HP

S &F in replacement of V belt oil and heat resistant antistatic type of size B- 58 complete all as specified and directed by Engr-in-charges.

S &F in replacement of V belt oil and heat resistant antistatic type of size B- 84 complete all as specified and directed by Engr-in-charges.

S &F in replacement of V belt oil and heat resistant antistatic type of size B-72 complete all as specified and directed by Engr-in-charges.

S &F in replacement of V belt oil and heat resistant antistatic type of size B-74/76 complete all as specified and directed by Engr-in-charges.

S &F in replacement of V belt oil and heat resistant antistatic type of size B- 88 complete all as specified and directed by Engr-in-charges.

Supply and fix in repairs of LP/HP Cut Out switch/sensor incl cutting, brazing complete all as specified and directed by Engr-in-charges.

Supply and fix in repairs of anti freeze switch/sensor. complete all as specified and directed by Engr-in-charges.

Supply and fix in repairs of water proof liquid temperature sensor. complete all as specified and directed by Engr-in-charges.

M&L for descaling of shell and tube type water cooled condenser and chillers shells of capacity 100TR capacity including chiller unit & chiller pipe lines with MS shell and integral copper tubes with safety valve with Descaling compound (Copper Friendly) through cleaning with descaling brush with rod (7' long) and circulating by descaling water pump, replacement of gasket set and other minor parts. Make of descaling compound is Scalfoe-100 complete all as specified and directed by Engr-in-charges. Note: (a) PH value of circulation water after descealing of condenser is tested and it must be lies between 6 to 8, If PH value does not found satisfactory. Descaling is carried till PH value meets requirement. (b) Descaling compound should be copper friendly.

All as per above item No 20 but for 75 TR capacity. complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 50 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 65 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 80 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 100 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 125 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

S & F in replacement of butter fly valve of 150 mm dia, cast iron body, integrally molded close and body construction with hand lever, operated and rating of PN 10 with thermal insulation as per requirement of condensser and chilled water line complete all as specified and directed by Engr-in-charges.

M&L for disconnecting electrical connections of motor located at the top of cooling tower and dismantling and taking out fan blade assembly along with motor mounted on base frame at the top of cooling tower after cutting all nuts, bolts and fixtures from the mounting frame and removing whole assembly including motor and base frame from the top of cooling tower with the help of T&P for servicing of cooling tower suitable upto 200 TR capacity including following complete servicing of cooling tower plant through Descaling Compound Make- Scalfoe-101 or equivalent complete pipe line, including servicing of cooling tower motor, fan and make the necessary alignment with motor and replacement of bearing of suitable cap including painting of motor & base after necessary work including greasing and replacement of nut bolts and preventing leakage if any by means of suitable additives etc complete all as specified and directed by Engr-in-charges. (a) Cleaning /scrapping of inner & outer surface of FRP basin, repair of damaged portion if any to and for FRP lining of all surfaces joints to avoid leakage including replacement of all nuts and bolts joining all parts of Basin complete (b) cleaning of serviceable PVC fills (Big size ) (c) Cleaning of serviceable PVC fills (small size ).

Taking down & Replacing of Existing U/s PVC fills (Big size ) in columns of size 60x30x15 cm complete all as specified and directed by Engr-in-charges.

Taking down & Replacing of Existing PVC fills (small size ) in columns of size 60x15x15 cm. complete all as specified and directed by Engr-in-charges.

Supply & replacement of Power contactor with 2 NO+ NC, 32 - 40 Amps,AC3,3pole,coil voltage 230/415Volt as per existing. complete all as specified and directed by Engr-in-charges.

Supply & replacement of Power contactor with 2 NO + NC,upto 30 Amps,AC3,3pole,coil voltage 230/415Volt, as per existing. complete all as specified and directed by Engr-in-charges.

Supply & replacement of Power contactor with 2 NO+ NC, 63Amps,AC3,3pole,coil voltage 230/415Volt as per existing. complete all as specified and directed by Engr-in-charges.

Supply & replacement of Power contactor with 2 NO+ NC,95-100A Amps,AC3,3pole,coil voltage 230/415Volt as per existing. complete all as specified and directed by Engr-in-charges.

Supply & fix in replacement of thermal type over load relay, upto 30 Amps. complete all as specified and directed by Engr-in-charges.

Supply & fix in replacement of thermal type over load relay, 32 to 63Amps. complete all as specified and directed by Engr-in-charges.

S & F in replacement front mounting add-on-aux control block for power contactor as per existing size and make working on ground. complete all as specified and directed by Engr-in-charges.

Supply & fix in replacement of single phase preventor DIN rail mounted 415 VAC as per existing rating complete all as specified and directed.Make suitable for existing starter working on ground. complete all as specified and directed by Engr-in-charges.

Supply & fix in replacement of electronic timer for star - delta starters , with auxilary supply- 230/415 volt, AC as per existing rating complete all as specified and directed by Engr-in-charges.

S & F in replacement of Thermostatic Expansion Valve suitable for blue star make air cooled chiller having capacity of 56 TR & Model XAC2YS-060R2 or equivalent complete all as specified and directed by Engr-in-charges.

M&L for servicing of the air cooled DX type chiller system of 56 TR capacity complete all as specified and directed by Engr-in-charges. (i) Cleaning of all condensing coil units with water spray jets (set of four in one unit) of 56TR every 3 months interval. (ii) servicing of squirrel cage induction motor and fan system of cooling fan of capacity 2.5 HP including greasing of all moveable parts and refitting same after repair following all as directed and specified by OEM (iii) Cleaning of chilled water line by flushing out the water till removing all the dirty water from the line (iv) servicing of Y- strainers, non return valves, butterfly valves of chilled water line

M & L for gas R-22 for topup / charging of refrigerant complete all as specified and directed by Engr-in-charges.

M & L for gas R-407A for topup /charging of refrigerant complete all as specified and directed by Engr-in-charges.

M & L for gas R-134A for topup /charging of refrigerant complete all as specified and directed by Engr-in-charges.

S & F in replacement of filter drier suitable for bluestar make air cooled/water cooled compressors complete all as specified and directed by Engr-in-charges.

M&L for servicing of Hot water generator of 55 KW, 415 volts 3 phase 50Hz with two steps and PAN Humidifier 9kW,415V AC, single step with following repairs complete all as specified and directed by Engr-in-charges. (a) Cleaning the storage tank, water level indicator, heating coil/element with descaling solution/agent and soft brush with non metallic bristles without affecting thermal insulation/top cover gasket. (b ) inspecting control wiring including replacement of u/s wiring, servicing of power contactors etc. (c ) inspecting/testing, servicing of relays, other safety valves

Supply & fix in replacement of flow switch 25mm size for inserting in line complete all as specified and directed by Engr-in-charges.

S & F in replacement of heating element upto 3kW, 230 Volt, ISI marked of complete all as specified and directed by Engr-in-charges.

S & F in replacement of MCCB 4 pole 63 Amps 415 Volts, 16 KA thermal magnetic release adjustable type. complete all as specified and directed by Engr-in-charges.

S & F in replacement MCB TP 25 To 63 AMP 415V 10KA 'C' curve complete all as specified and directed by Engr-in-charges.

S & F in replacement of MCCB 4 pole 250 A 415 Volts, 36 KA thermal magnetic release adjustable type. complete all as specified and directed by Engr-in-charges.

S & F in replacement of MCCB 4 pole 630 Amps 415 Volts, 50 KA thermal magnetic release adjustable type. complete all as specified and directed by Engr-in-charges.

S & F in replacement of MCCB 4 pole 100 Amps 415 Volts, 16 KA thermal magnetic release adjustable type. complete all as specified and directed by Engr-in-charges.

S&F in replacement auto air vent Valve of suitable size as per existing size and complete all as specified and directed by Engr-in-charges.

all as per item No. 57 above But for AHU capacity of 12500 CFM complete all as specified and directed by Engr-in-charges.

Supply, installation, commissioning & testing of insulated three- way mixing valve suitable with modulating motors with necessary cooling/heating thermostat for AHUs duly insulated with Nitrilr Rubber complete all as specified, suitable for tubes of 65mm bore size. complete all as specified and directed by Engr-in-charges.

(a) Scroll compressor model No SY300, 19 TR Capacity, 3 phase, 415 volts, 50Hz suitable for R407 refrigerent of 56 TR Capacity chiller unit.

(b) Scroll compressor model No SY380, 25TR Capacity, 3 phase, 415 volts, 50Hz suitable for R22 refrigerent of 100 TR Capacity chiller unit.

Supply and fix in replacement ON/OFF Push button switch with two push buttons of existing specification complete all as specified and directed by Engr-in-charges.

M & L for painting of MS Pipe with 2 coats of synthetic enamel paint and one coat of red oxide primer for 150 mm dia pipe line complete all as specified and directed by Engr-in-charges.

M & L for painting of MS Pipe with 2 coats of synthetic enamel paint and one coat of red oxide primer for 80 to 100 mm dia pipe line complete all as specified and directed by Engr-in-charges.

Supply and fix in replacement thermometer 0-60 Degree centrigrade suitable for fixing with 150 mm dia water circulating pipe by means of proper welding and connection with checking the running water temperature complete all as specified and directed by Engr-in-charges.

S & F in replacement of Y strainer 100 mm dia made out of cast iron to be fitted in chiller / condensing line complete all as specified and directed by Engr-in-charges.

S & F in replacement of Y strainer 150 mm dia made out of cast iron to be fitted in chiller / condensing line complete all as specified and directed by Engr-in-charges.

S & F in replacement of microprocessor motor protection device (MVPD) for 100 TR water cooled chiller unit as per existing make and type complete all as specified and directed by Engr-in-charges.

Supply and Fix in replacement rotational moulded polye thylene water storage tanks capacity 2000 Ltr (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I complete all as specified and directed by Engr-in-charges.

S & Fin replacement phase indicator set ( R, Y, B) with indicator lamps suitable for panel mounted complete all as specified and directed by Engr-in-charges.

M & L for Replacement of copper tube bunches of size 10/12 mm evaporator shell as per existing size and quantity of copper tubes for 56 TR AC plant of make Bluestar. complete all as specified and directed by Engr-in-charges.

M&L for Earthing complete with galvanised steel earth plate electrode 60cm×60cm× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised iron strip 32 x 6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 03 connected to earthing test point all as specified or indicated including testing on completion. complete all as specified and directed by Engr-in-charges.

Supply and fixing in replacement of CAREL PGD user interface programmable display suitable for 56 TR air cooled chiller model No XACZYS-060R2 as per existing make bluestar and model including control wiring and complete connection complete all as specified and directed by Engr-in-charges.

Supply and fixing in replacement of CAREL PGD microprocessor based programmable controller suitable for 56 TR Air cooled AC plant Model XACZYS-060R2 as per existing make bluestar and model including control wiring and complete connection complete all as specified and directed by Engr-in-charges.

Supply and fixing in replacement of user interface programmable display suitable for 34 TR blue star air cooled chiller Model XAC3S036MAR2 as per existing make bluestar and model including control wiring and complete connection complete all as specified and directed by Engr-in-charges.

Supply and fixing in replacement of microprocessor based programmable controller suitable for 34 TR blue star air cooled chiller Model XAC3S036MAR2 as per existing make bluestar and model including control wiring and complete all as specified and directed by Engr-in-charges.

M & L for XLPE insulated,armoured heavy duty electric cable with copper conductor,1100 volts grade, cross sectional area 6 sq mm x 4 core. complete all as specified and directed by Engr-in-charges.

M & L for XLPE insulated,armoured heavy duty electric cable with copper conductor,1100 volts grade of cross sectional area 10 sq mm x 4 core complete all as specified and directed by Engr-in-charges.

M & L for XLPE insulated,armoured heavy duty electric cable with copper conductor,1100 volts grade of cross sectional area 16 sq mm x 4 core complete all as specified and directed by Engr-in-charges.

Supplying, installing & commissioning of Bag / Pocket Filters for AHU of capacity 12,500 CFM, complete with all accessories Multi-pocket bag filter,F7 (EN 779:2012) / ISO ePM2.5 ≥ 65% Frame Material: GI / Aluminum (min. 25 mm thick),Filter Media: Synthetic non-woven / micro glass fiber with Leak-proof PU sealing complete all as specified and directed by Engr-in-charges.

S & F in repairs electrical panel Lock and key set complete all as specified and directed by Engr-in-charges.

Supply, installation, testing and commissioning of NB wafer type PN 1.6 rated swing check type multidoor reflux valve (NRV), designed & tested as per IS 5312 (Part- 2): 1986, suitable to handle clear water having turbidity up to 5000 PPM, having CI body, door and diaphram, leaded tin bronze seat rings and flange drilling standard end connection, etc. duly insulated with FM approved highly- flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of apppropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim along with adhesives and other necessary accessories complete all as specified and directed by engineer-in-charge of 100 mm NB

M&L for Preventive maintenance/servicing of 75 TR chiller unit (bluestar make)of water cooled central AC plant 150 TR includes checking all the parameters,servicing of all type of sensors, all type of valves,filter driers, oil heaters, fuses, electrical panel complete by the OEM all as specified and directed by engineer in charge.The rates of repair/replacement of sensors includes in the above quoted price and the rates of other items required will be paid seperately. complete all as specified and directed by Engr-in-charges.

S & F in repairs Filter driers of 75 TR chiller units complete all as specified and directed by Engr-in-charges.

S & F in repairs oil heaters of 75 TR chiller units complete all as specified and directed by Engr-in-charges.

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