Repair/maint of Central AC plant/Package type AC plant at AF Stn Jaisalmer

Amount

Comprehensive maintenance of central water cooled Air Conditioning Plants, AHU's and connected machineries and other equipments as described below by the authorised representative of OEM (Original Equipment Manufacturer):- (A) EQUIPMENT DETAILS :

600 TR AC Plant (2x300 TR working + 1x300 TR standby)-01, Make : Blue Star

100 TR AC Plant (2x50 TR working + 1x50 TR standby)-01, Make : Blue Star

50 TR AC Plant (1x50 TR working + 1x50 TR standby)-01, Make : Blue Star

44 TR AC Plant (2x22 TR working + 1x22 TR standby)-02, Make : Voltas

22 TR AC Plant (2x11 TR working + 1x11 TR standby)-04, Make : Voltas-03, Hitachi-01

20 TR AC Plant (2x10 TR working + 1x10 TR standby)-01, Make : Voltas

17 TR AC Plant (2x8.5 TR working + 1x8.5 TR standby)-04, Make : Voltas

11 TR AC Plant (1x11 TR working + 1x11 TR standby)-02, Make : Voltas

8.75 TR ductable AC -05, Make : Voltas

Connected refrigerant controls like pressure gauges, pressure switches, thermostats & solenoid valves. Connected water pipe lines & valves. Connected Air ducting, dampers, grills, air diffusers and insulation both acoustic and thermal. Connected electrical system including distribution boards and MCCB Panels. Connected instrumentation, controls and cabling.

(B) CHILLER SYSTEMS : Check flow switch operation for proper operation. Checking condition and setting of panel controls, operating controls, safety controls to ensure optimum performance, reliability and replacement of the same if found necessary. Cleaning of Pot strainers in water circuit. Lubricating all bearings as required. Checking/ rectifying of alignment of coupling in direct driven components. Checking of AC systems and monitoring for any oil or gas leakages. Checking of pressure controls (HP/ LP/OP/WP), refrigerant pressure gauges, water pressure gauges, temperature gauges, expansion valves, refrigerant valves, strainer/ driers, thermostats and solenoid valves etc.

(C) AHU SYSTEMS : Checking the electrical control and set points for operation and adjusting the setting if necessary. Inspect cables for loose/loaded terminals, rectify if necessary. Check AHU motor mounts for undue vibrations and replace the mounts if necessary within the quoted rates. Checking of AHU fan motor, Impeller housing, shaft and bearings. Checking of belt tension and alignment of motor, tightening of V-belts. Cleaning of AHU outlets like diffusers, grills etc. with a standard chemical cleaning agent recommended by the OEM within the quoted rates. Side covers shall be opened and damaged nut and bolts shall be replaced within the quoted rates. AHU coil shall be cleaned with a standard chemical cleaning agent recommended by the OEM within the quoted rates. Side covers shall be opened and damaged nut and bolts shall be replaced within the quoted rates. AHU coil shall be cleaned with a standard chemical cleaning agent recommended by the OEM within the quoted rates. Check for condition of motor pulley, blower pulley and alignment of both the pulleys and the same shall be repaired/replaced if found any abnormality within the quoted rates. Motor terminals shall be checked and properly tightened. Checking/rectifying of alignment of coupling in directed driven components. Checking, rectification, repair and replacement of GI ducting, thermal/acoustic insulations, dampers, tinkering, welding and painting to ensure smooth function of the equipments. Check for V-belts and filter assembly/canvas cloth condition and replace if required. Note : Cost of V-belts and filter assembly shall be measured and paid under the relevant items of this schedule.

(D) CHILLER WATER PUMP : Checking the condition and setting of panel controls, operating controls and safety controls to optimum performance, reliability and replacement of the same, if found necessary within the quoted rates. Inspect cables for loosed/loaded terminals rectify if necessary within the quoted rates. Base bolts, coupling bolts shall be tightened rigidly and check for alignment of coupling and coupling bushes shall be replaced including replacement of the rusted bolts shall be replaced with new ones within the quoted rates. Checking/rectifying of alignment of coupling in direct driven components.

(E) CONDENSER WATER PUMP - Checking the electrical control and set points for operation and adjusting the setting if necessary. Inspect cables for loose/loaded terminals, rectify if necessary. Inspect contacts for chatler marks and clean. Base bolts, coupling bolts shall be tightened rigidly and check for alignment of coupling and coupling bushes shall be replaced including replacement of the rusted bolts shall be replaced with new ones within the quoted rates. Checking/rectifying of alignment of coupling in direct driven components.

(F) ALL ELCTRICAL PANELS AND CONTACTORS - Checking the electrical control and set points for operation and adjusting the setting if necessary. Inspect cables for loose/loaded terminals rectify if necessary within the quoted rates. Checking electrical panels & cabling at plant room and all control cabling.

(G) COOLING TOWERS - Checking of cooling tower nozzles, sprinklers, cooling tower motors and fans. Inspect cables for loose/loaded terminals, rectify if necessary within the quoted rates. Checking the condition and setting of panel controls, operating controls and safety controls to optimum performance, reliability and replacement of the same/ if found necessary within the quoted rates. Valve gland leaks shall be arrested by changing gland packing material. Check for proper functioning of valves and repair the same if found any abnormality within the quoted rates.

(H) FAN COIL UNIT - Checking the electrical control and set points for operation and adjusting the setting if necessary within the quoted rates. Check FCU motor mounts undue vibrations. Replace mounts if necessary within the quoted rates. Inspect cables for loose/loaded terminals, rectify if necessary within the quoted rates.

(H) CENTRIFUGAL FAN, EXHAUST FAN - Checking the electrical control and set points for operation and adjusting the setting if necessary within the quoted rates. Inspect cables for loose/loaded terminals, rectify if necessary within the quoted rates. Check fan motor mounts for undue vibrations. Replace mounts if necessary within the quoted rates.

(L) RECOVERIES FOR NON PERFORMANCE - 1. The quoted rate is deemed to be inclusive of Attending to emergency complaints/break-down by employing additional workmen as required within the quoted rates. 2. Call made before 1600 Hrs shall have to be attended on same day. Call made after 1600 Hrs shall be attended by 1000 Hrs on next day. 3. The firm has to attend the unscheduled service calls as and when required for locating the faults and rectify the same immediately. The contractor should attend to the breakdown of plant on priority basis. Records of the break down should be maintainted by him as directed by Engr-in-charge. Efforts should be made to restore working of plant within 8 hours of break so that regular air conditioned supply to users in maintained. If need be, the extra workmen shall be arranged by the contractor within quoted rates. In case of failure to rectify and complete the work as explained in the scope of work within the time limit as mentioned below, the work shall be got carried out through other agency at the risk and cost of contractor without further notice to them. 4. The corrective/breakdown maintenance is to be carried out any time during 24 hours x365days inclusive of all Sunday & Holidays.

(L) RECOVERIES FOR NON PERFORMANCE (CONTD) - 5. Minor Maintenance :- Inclusive of Repairing and Replacement of all Spares/Components and all other associated accessories which are covered otherwise and attention of all defects other than major defects. (i) Respose Time (Maximum) - 03 hours (ii) Attending Time (Maximum) - 06 hours 6. Major Maintenance:- Inclusive of Repairing and Replacement of all Spares /Components and all other associated accessories which are covered otherwise and attention of all defects other than major defects. (i) Respose Time (Maximum) - 03 hours (ii) Attending Time (Maximum) - 24 hours (Should be in proportion with the type of failure). 7. In case of major complaints such down of system more than 36 hours whenever the standby equipment is not available for service a penalty of Rs 1000/- per day shall be imposed subject to maximum of Rs 15000/- depending upon the continuity of the shutdown. 8. The complaints which cannot be attended to within above specified time limit on technical grounds, be brought to knowledge of Engr-in-charge for taking suitable remidial action. 9. The scope of work includes preventive maintenance of air conditioning plant, etc. The same should be carried out on Saturdays, Sundays and holidays with prior intimation to Engr-in-charge. Contractor shall work out time schedule for carrying out preventive maintenance in consultation with Engr-in-charge. 10. The contractor shall be entirely responsible for all safety precautions required 11. No additional payment shall be made for transportation of equipment from the AC plant site to the Firm's ware house or delivery of the materials to the AC plant site at any point of time.

(L) RECOVERIES FOR NON PERFORMANCE (CONTD) - 12. The firm shall make good all the losses occurred during servicing, overhauling, repairing and maintenance of plants without any additional cost. 13. All units of the AC plants like Compressors, pumps, motors, blower, etc. should be maintained in optimum condition. They will be checked for proper functioning and defective spares will be replaced if necessary. Consumables like oil, gas, contactors, switches, valves, etc and jobs like descaling, rewinding, gas charging, oil filling etc. will be measured and paid under the respective items of this schedule.

(M) The following maintenance services are not covered under comprehensive maintenance of Central AC plant - 1. Repair/overhaul of the compressor, condensor, chiller, motor, cooling tower, cooling tower fittings, heating/cooling coils, fans, FCUs, AHU, Sheet metal parts, valves, sensors etc. 2. Repair/replacement of electrical main switch/circuit breaker, main incoming cable, fuses and indication lamps. 3. Repair/replacement of component of main electrical distribution board and distribution power control cabling. 4. Repair/replacement of chilled water and condenser water valves and water piping, and all kind of masonry/ structural work. 5. Ducting and its accessories like dampers of all types, Thermal and acoustic installation, all type of piping and valves, electrical panel cabling, control wiring, bulbs and fuses. 6. Repair/replacement of fine filters and absolute filters. 7. Rewinding job of motors etc. 8. Gas charging job. 9. Compressor oil filling job. 10. Descaling job(s). 11. Cleaning of cooling tower 12. Cleaning of AHU and its filters. 13. Cleaning of Air ducts. 14. Painting of any component of AC plant. 15. Repair/overhauling of hot water generator and its system.

Descaling of Condenser unit of 600 TR Air Conditioning Plant, including AHU units (11 Nos), cooling towers and pipe lines with descaling Chemical (As recommended by the OEM) including replacement of gaskets and tighten with new nut and bolts, painting to cooling tower and all connected pipe lines with two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed. Note : (i) 03 condensor unit, all connected AHU units, cooling towers and connected pipe lines will be measured as one Job. (ii) Descaling chemical shall be included in the quoted rate. (iii) Strength of descaling solution shall be measured with pH paper and if the strength is less than 30%, then the descaling shall be done again by the contractor at his own cost to achieve the desired level of pH and nothing shall be payable extra on this account. (iv) The job also includes material and labour for making leak proof refrigerant system by vaccumising with in 7.6 mm HG carried out using N-2 gas and maintaining for three hours, at the end of this period vaccum should be maintained for 24 hours complete all as specified and directed.

Descaling of condensor unit of 100 TR & 50 TR Air Conditioning Plants including all AHU units, cooling towers and pipe lines with descaling Chemical (As recommended by the OEM) including replacement of gaskets and tighten with new nut and bolts, painting to cooling tower and all connected pipelines with two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed. Note : (i) 03 condensor unit, all connected AHU units, cooling towers and connected pipelines will be measured as one Job. (ii) Descaling chemical shall be included in the quoted rate. (iii) Strength of descaling solution shall be measured with pH paper and if the strength is less than 30%, then the descaling shall be done again by the contractor at his own cost to achieve the desired level of pH and nothing shall be payable extra on this account. (iv) The job also includes material and labour for making leak proof refrigerant system by vaccumising with in 7.6 mm HG carried out using N-2 gas and maintaining for three hours, at the end of this period vaccum should be maintained for 24 hours complete all as specified and directed.

Descaling of condensor unit of 44 TR Air Conditioning Plants including all AHU units, cooling towers and pipe lines with descaling Chemical (As recommended by the OEM ) including replacement of gaskets and tighten with new nut and bolts, painting to cooling tower and all connected pipe lines with two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed. Note : (i) 03 condensor unit, all connected AHU units, cooling towers and connected pipe lines will be measured as one Job. (ii) Descaling chemical shall be included in the quoted rate. (iii) Strength of descaling solution shall be measured with pH paper and if the strength is less than 30%, then the descaling shall be done again by the contractor at his own cost to achieve the desired level of pH and nothing shall be payable extra on this account. (iv) The job also includes material and labour for making leak proof refrigerant system by vaccumising with in 7.6 mm HG carried out using N-2 gas and maintaining for three hours, at the end of this period vaccum should be maintained for 24 hours complete all as specified and directed.

Descaling of condensor unit of 11 TR to 22 TR Air Conditioning Plants including all AHU units, cooling towers and pipe lines with descaling Chemical (As recommended by the OEM) including replacement of gaskets and tighten with new nut and bolts, painting to cooling tower and all connected pipe lines with two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed. Note : (i) 03 condensor unit, all connected AHU units, cooling towers and connected pipe lines will be measured as one Job. (ii) Descaling chemical shall be included in the quoted rate. (iii) Strength of descaling solution shall be measured with pH paper and if the strength is less than 30%, then the descaling shall be done again by the contractor at his own cost to achieve the desired level of pH and nothing shall be payable extra on this account. (iv) The job also includes material and labour for making leak proof refrigerant system by vaccumising with in 7.6 mm HG carried out using N-2 gas and maintaining for three hours, at the end of this period vaccum should be maintained for 24 hours complete all as specified and directed.

Supply (in company sealed cylinders of any capacity) and charging refrigerant gas R-22 for filling in compressors as per requirement complete all as specified and directed. Note : If the recharged refrigerant gas is leaked within 45 days of running of AC plant, the contractor shall recharge gas (including supply) without any extra cost to the department.

Supply (in company sealed cylinders of any capacity) and charging refrigerant gas R-134a for filling in compressors as per requirement complete all as specified and directed. Note : If the recharged refrigerant gas is leaked within 45 days of running of AC plant, the contractor shall recharge gas (including supply) without any extra cost to the department.

Supply (in company sealed cylinders of any capacity) and charging refrigerant gas R-407c for filling in compressors as per requirement complete all as specified and directed. Note : If the recharged refrigerant gas is leaked within 45 days of running of AC plant, the contractor shall recharge gas (including supply) without any extra cost to the department.

Topping up/charging of Compressor oil non freezing type in factory sealed containers (as per existing grade and type recommended by OEM) complete all as specified and directed.

Fan Belt for AHU of size B-76/78/106/126, A-23/ 27/28/ 29/30 /44/56/57/61 or any other size as per existing fixed as in repairs complete all as specified and directed.

Disconnecting, dismantling, taking down burnt out chiller motor/cooling tower motor/condensor pump/Hot water pump from its base and transporting the motor to the workshop and back, refixing, testing on full load, commissioning the repaired motor after carrying out the following repairs :- (i) Opening the side covers and removing the rotor and cutting/removing the burnt coils/winding from stator (ii) Cleaning the slots carefully (iii) Rewinding the stator using super enamelled copper conductor wire with same size, number of coils, number of turns/coils as per data acquired from the old burnt motor, including varnishing of two coats, drying using electric furnace (iv) Testing the coils for continuity and no current passing through the stator core (v) Dynamic testing of the rotor and alignment of the main shaft and ensure that no imbalance or vibrations (vi) Re-assembling the rotor and connecting the end terminals to the terminal plate of the motor, closing the ends with side covers (vii) Testing and commissioning the electric motor connected to the electric supply to its full load by connecting the compressor (viii) Fixing of new nuts, bolts and washers Note : Parts renewed i.e. Ball bearing, greasing and oiling shall be deemed to be included in the quoted rates.

50 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

30 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

20 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

15 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

7.5 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

5 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

3 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

2 HP chiller motor/cooling tower motor/condensor motor/hot water pump complete all as specified and directed.

Drier filter suitable for ductable Central AC plant/package type Air Conditioner Plant of capacity 11 TR to 600 TR fixed as in repair complete all as specified and directed. Make: Danfoss/indofoss complete all as specified and directed.

Chillar Plant Heater of suitable capacity as per existing sample fixed as in repair complete all as specified and directed.

Dehumidifier thermostate of suitable capacity as per existing fixed as in repair complete all as specified and directed

Chillar Plant sensor as per existing fixed as in repair complete all as specified and directed.

Pressure Gauge 4" dial 0-21 Kgs rating fixed as in repair complete all as specified and directed.

Expanion Valve for Chillar Plant as per existing size fixed as in repair complete all as specified and directed.

Bearing Shaft as per existing size fixed as in repair complete all as specified and directed.

Heating Rod of capacity 2 KW to 3 KW as per existing for dehumidifier/humidifier fixed as in repair complete all as specified and directed.

Pump seal fixed as in repair complete all as specified and directed.

Air Purching valve with Ball valve of size 15mm fixed as in repair complete all as specified and directed.

Fins for cooling towers, Flute size 12mm and 19mm, thickness 0.175mm to 0.20mm, 24" x 12" x 6" (600mm x 300mm x 150mm) or any other size as per sample fixed as in repair complete all as specified and directed.

Switch Disconnector fuse unit (heavy duty) for power distribution and motor protection (in Open Execution TPN) capacity 630 Amps, TPN, 415 volts, SDF suitable for BS type HRC Fuses complete with all accessories fixed as in repair complete all as specified and directed.

Contactor capacity 400 Amps, 3 Pole, 415 Volt, 50 Hz suitable for 160 KW/ 215 HP load complete with all accessories fixed as in repair complete all as specified and directed.

Contactor capacity 250/275 Amps, 3 Pole, 415 Volt, 50 Hz suitable for 110 KW/ 150 HP load complete with all accessories fixed as in repair complete all as specified and directed.

Contactor capacity 115/145 Amps, 3 Pole, 415 Volt, 50 Hz suitable for 110 KW/ 150 HP load complete with all accessories fixed as in repair complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 630 Amps rating, rupturing capacity 50 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 400 Amps rating, rupturing capacity 50 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 250 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 200 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 160 Amps rating, rupturing capacity 25-36 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release, 4 Pole, 125 Amps rating, rupturing capacity 25-36 kA, 415 Volt grade, AC, 50 Hz (Ics = 100% Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release for motor backup protection of capacity 100 Amp, 4 Pole, breaking capacity 25-36 KA, 415 Volt, 50 Hz (Ics=100%Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCCB with Microprocessor release for motor backup protection of capacity 63 Amp, 4 Pole, breaking capacity 25-36 KA, 415 Volt, 50 Hz (Ics=100%Icu), making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified and directed.

MCB, Single Pole, 32 Amps rating, with over load and short circuit protection 'C' curve and rupturing capacity 10 kA, 240 Volt grade, AC supply, 50 Hz and making connections using suitable size copper lugs/thimbles including taking down old unserviceable MCB, complete all as specified & directed.

MCB, TP, 32 Amps rating, with over load and short circuit protection 'C' curve and rupturing capacity 10 kA, 240 Volt grade, AC supply, 50 Hz and making connections using suitable size copper lugs/thimbles, fixed as in repair complete, all as specified & directed.

Power Contactor capacity 40 Amp, 3 Pole, 415 Volt, 50 Hz, type MNX, conforming IS/IEC 60947-4-1 complete with all accessories including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Power Contactor capacity 32 Amp, 3 Pole, 415 Volt, 50 Hz, type MNX, conforming IS/IEC 60947-4-1 complete with all accessories including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Power Contactor capacity 18 Amp, 3 Pole, 415 Volt, 50 Hz, type MNX, conforming IS/IEC 60947-4-1 complete with all accessories including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Power Contactor capacity 12 Amp, 3 Pole, 415 Volt, 50 Hz, type MNX, conforming IS/IEC 60947-4-1 complete with all accessories including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Power Contactor capacity 9 Amp, 3 Pole, 415 Volt, 50 Hz, type MNX, conforming IS/IEC 60947-4-1 complete with all accessories including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Supply, laying, jointing and testing XLPE insulated armoured heavy duty LT under ground electric cable (ISI marked) with copper stranded conductor 1100 Volt grade cross sectional area 185 sqmm 3.5 core laid in trenches/ducts, through pipe, under floors or roads/along poles etc including dismantling & taking out old unserviceable cable complete all as specified.

Cooling tower motor of capacity 15 HP suitable for 100 TR Air Conditioning Plant cooling tower with all accessories and mounting bracket & fan fixed as in repair complete all as specified and directed.

Cooling tower motor of capacity 5 HP suitable for 44 TR Air Conditioning Plant cooling tower with all accessories and mounting bracket & fan fixed as in repair complete all as specified and directed.

Cooling tower motor of capacity 3 HP suitable for 22 TR Air Conditioning Plant cooling tower with all accessories and mounting bracket & fan fixed as in repair complete all as specified and directed.

Pump Motor coupling required for capacity 40 HP and 30 HP motor including taking down old unserviceable coupling complete all as specified and directed.

Relay 12-32 Amps, 8 Pin, 220 volt-240 volt for hot water generator including taking down old unserviceable relay complete all as specified and directed.

Relay 42 Amps, 8 Pin, 220 volt-240 volt for hot water generator including taking down old unserviceable relay complete all as specified and directed.

Flow Control acuator and sensor for AHUs RC 981S 24V AC/28 Volt DC Make: OMRON including taking down old unserviceable complete all as specified and directed.

Running capacitor, 50 MFD (2+2) and one point for blower motor suitable for AC of capacity 30/40 HP Motor Make: EPCOS / SYSCAP/ ASIAN/TIBCAB including taking down old unserviceable complete all as specified and directed.

Running capacitor, 100 MFD (2+2) and one point for blower motor suitable for A/C of capacity 30/40 HP Motor Make: EPCOS / SYSCAP/ ASIAN/TIBCAB including taking down old unserviceable complete all as specified and directed.

Electronic type Single Phase Preventor in existing panel boards (Max 600 volt & Min 380 volt) suitable for 3 Phase, 415 volt grade, Modal No. VSPM2 of any make and any size, over loading, under voltage, over voltage, complete as per sample including disconnecting & taking down old unserviceable complete all as specified and directed.

Finding out the leakage and pressure test with filling N2 gas inside of the condensor and cooling coil of Chiller Package Air Conditioning Plant capacity 8.75/10/11 TR including dismantling the same for repair the leakage point by brazing/soldering including taking down and refixing the unit and testing the AC unit complete all as specified and directed.

Finding out the leakage and pressure test with filling N2 gas inside of the condensor and cooling coil of Chiller Package Air Conditioning Plant capacity 17 TR to 100 TR including dismantling the same for repair the leakage point by brazing/soldering including taking down and refixing the unit and testing the AC unit complete all as specified and directed.

Finding out the leakage and pressure test with filling N2 gas inside of the condensor and cooling coil of Chiller Package Air Conditioning Plant capacity 600 TR including dismantling the same for repair the leakage point by brazing/soldering including taking down and refixing the unit and testing the AC unit complete all as specified and directed.

Cooling tower Sprinkler assembly as per existing fixed as in repair complete all as specified and directed.

Leakage of cooling towers with following procedure Firstly applying resin on cleaned and dry surface and then 1st layer of fible glass reinfored strip, again layer of resin above resin layer 2nd layer of fibre sheet and on the top of the surface finishing with the help of epoxy to make the cooling tower leakage proof fixed as in repair complete all as specified and directed.

Cooling tower Strainer filter as per existing fixed as in repair complete all as specified and directed.

Supply, installation, commissioning and testing Compressor scroll type Copper wound working on R-407c, capacity 5.0 TR and compressor shall be equipped with sunction and discharge stop valves, sunctions, strainer, oil pump with oil strainer, high pressures switch and safety valves and gauges oil measuring the sunction and discharge pressure and the coil pressure shall be provied. Compressor shall be provided with unloading starting device and crank case heater system shall be provided including taking down old unserviceable compressor complete all as specified and directed. Make : Copeland Scroll Model Number ZR72KC-TFD-522, Serial No. 03B0903AT or equivalnet of Kirloskar/ELG.

Supply, installation, commissioning and testing of Compressor scroll type Copper wound working on R-407c, Capacity 8.75 TR and compressor shall be equipped with sunction and discharge stop valves, sunctions, strainer, oil pump with oil strainer, high pressures switch and safety valves and gauges oil measuring the sunction and discharge pressure and the coil pressure shall be provied.Compressor shall be provided with unloading starting device and crank case heater system shall be provided including taking down old unserviceable compressor complete all as specified and directed. Make : Danfoss Model Number HCP109T4LC6 or equivalent.

Supply, installation, commissioning and testing of Compressor scroll type Copper wound working on R-407c, Capacity 11 TR and compressor shall be equipped with sunction and discharge stop valves, sunctions, strainer, oil pump with oil strainer, high pressures switch and safety valves and gauges oil measuring the sunction and discharge pressure and the coil pressure shall be provied.Compressor shall be provided with unloading starting device and crank case heater system shall be provided including taking down old unserviceable compressor complete all as specified and directed. Make : Danfoss Model Number SZ185S4RC or equivalent.

M2VPD of current range 5-30 Amp, Auxiliary Supply 230 Volt grade, 50 Hz, AC Supply, 5 Sec Curve MPD including taking down old unserviceable complete all as specified and directed.

Gas Charging Valve 1/4 inch as per existing fixed as in repair complete all as specified and directed.

High pressure/ low pressure (HP/LP) cut out MP-5 fixed as in repair complete all as specified and directed. Make : Indfoss/Danfoss as per existing

P No 205 Bearings (set of two) for AC blowers including turning the shaft as per requirement at site fixed as in repair complete all as specified and directed.

Temperature sensor for Air Contioner Plant capacity 10 TR fixed as in repair complete all as specified and directed.

Liquid line valve for Air Conditioner Package unit 10 TR capacity fixed as in repair complete all as specified and directed.

Blower Shaft suitable for Air Conditioner Plant capacity 10 TR fixed as in repair complete all as specified and directed.

Blower suitable for Air Conditioner Plant capacity 10 TR fixed as in repair complete all as specified and directed.

MPD range 2-22 Amp as per existing fixed as in repair complete all as specified and directed.

Induction Blower Motor capacity 2.0 PH, Three Phase, 415 Volt grade, 50 Hz, AC supply, 1400 RPM, (As per Sample) fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Induction Blower Motor capacity 7.5 PH, Three Phase, 415 Volt grade, 50 Hz, AC supply, 1400 RPM, (As per Sample) fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Induction Blower Motor capacity 15 PH, Three Phase, 415 Volt grade, 50 Hz, AC supply, 1400 RPM, (As per Sample) fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Condensor Motor capacity 0.5 HP, Three Phase, 415 Volt grade, 50 Hz, AC supply fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Condensor Motor capacity 0.75 HP, Three Phase, 415 Volt grade, 50 Hz, AC supply fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Condensor Motor capacity 1.5 HP, Three Phase, 415 Volt grade, 50 Hz, AC supply fixed as in repair complete all as specified and directed. Make : CG/Kiroskar/Hindusthan

Aluminium Fan assembly with fan and blade for Air Conditioner Plant fixed as in repair complete all as specified and directed.

Condenser fan Blade 20" fixed as in repair complete all as specified and directed.

Repair/maint and servicing of condensor fan motor for outdoor unit i/c ball bearing, studs, nuts, bolts, washers, gland packing, greasing etc as required complete all as specified and directed.

Canvas from pakage unit to inlet duct including accessaries and fixed as in repair in return grill with accessaries complete all as specified and directed.

Power Contactor, 45 Amps with AC coil voltage, 415 volts grade, 50 Hz, AC supply, 7.5 KW/5.0 HP, fixed in existing panel including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

Power Contactor, 32 Amps with AC coil voltage, 415 volts grade, 50 Hz, AC supply, 7.5KW/5.0 HP, fixed in existing panel including disconnecting & taking down old existing unserviceable contactor complete all as specified and directed.

MCB, TPN, 32 Amps rating, with over load and short circuit protection 'C' curve and rupturing capacity 10 kA, 415 Volt grade, AC Supply, 50 Hz and making connections using suitable size copper lugs/thimbles, including disconnecting & taking down old unserviceable MCB, complete all as specified & directed.

MCB, TPN, 40 Amps rating, with over load and short circuit protection 'B' curve and rupturing capacity 10 kA, 415 Volt grade, AC supply, 50 Hz and making connections using suitable size copper lugs/thimbles, fixed as in repair complete all as specified & directed.

MCB, TPN, 63 Amps rating, with over load and short circuit protection 'C' curve and rupturing capacity 10 kA, 415 Volt grade, AC supply, 50 Hz and making connections using suitable size copper lugs/thimbles, including disconnecting & taking down old unserviceable MCB, complete all as specified & directed.

Compressor 8.75 TR suitable for package type air conditioner with R-22 Gas fixed as in repair complete all as specified and directed

Supply, install, connecting & testing electric driven centrifugal monoblock pump set of capacity 5.0 HP / 3.7 KW, Three Phase, 50 Hz, 415 Volts, head range 18 metre with class 'B' insulation of suction and delivery size 80x80mm including necessary fixing arrangement and inlcuding taking down old unserviceable pump complete all as directed. Make : Kirlosker Model KDS 520+ or equivalent/CG/Havells

PLC controller for 33 TR chillar unit fixed as in repair complete all as specified and directed. Make : Softhard automation model No-33 TR/ HMI (5-30A) /Ser No-02/2K13-50 or equivalent.

MPD of current range 5-30 Amp, Aux supply 0-11 VAC, 0-13 VAC Volt, 5 sec curve MPD fixed as in repair complete all as specified and directed. Make : Softhard automation Model - SCR 33 TR (MPD) or equivalent.

Rotational moulded polyethylene water storage tanks 5000 litre capacity triple layered (cylindrical vertical with closed top) ISI marked, hoisted & fixed in position & making necessary arrangements for fixing inlet, outlet & over flow pipe & provision of wash out pipe etc. including dismentling & taking down old unserviceable water tank capacity 5000 litre complete as specified in SSR Part-I.

Blower motor pulley, as per sample existing fixed as in repair complete all as specified and directed.

Phase indicator lamp of colour red, yellow and blue as per sample fixed as in repair complete all as specified and directed.

PVC insulated Flame Retardant Low Smoke & Halogen (FRLSH) multistranded copper conductor cables, 1100 volts grade confirming to IS 694, single core of size 6 Sqmm including replacement of all lugs/thimbles with new copper lugs/thimbles and including taking down old unserviceable wiring complete all as specified and directed.

Supply and fixing complete control wiring with complete interlocking of chiller units, condensers, chillers pump, cooling pump and AHU with Panels including replacement of all lugs/thimbles and taking down old unserviceable wiring complete all as specified and directed.

Solenoid valve as per sample existing fixed as in repair complete all as specified and directed.

Properly fixing of tilted/overhanging ceiling diffuser to the existing duct including cutting of 600x600x5mm thick false ceiling where required panel complete all as specified and directed.

Supply and pouring of corrosion inhibitors (Bicarbonates) complete all as specified and directed.

Supply and pouring of algaecides & Biocides to kill algae and other related plant-like microbes in the water complete all as specified and directed.

Supply and pouring of Scale inhibitor chemical (SCALE2/38249022) complete all as specified and directed.

Hepa filters of efficiency 99.97% down to 0.3 microns or higher efficiency fixed as in repair complete all as specified and directed.

M/s Yash Electrical and Maintenance

M/S SUMAN ENTERPRISES