REPAIR AND MAINTENANCE OF CENTRAL AC PLANTS INSTALLED AT TECHNICAL BUILDING IN THE AREA OF CAMERO (AFCME AND DIT) AND HQ WAC UNDER GE (AF) SUBROTO PARK, DELHI CANTT-10

Amount

M&L for servicing of AHU for 20000 CFM TR AC plant installed at DIT & Ops room comprising of cleaning the air filter/cooling coil, cleaning of fresh air duct/grill with chemical followed with pressurised water jet, greasing of AHU motor, tightening of belts, checking the functioning of 3 way motorised mixing valve, tightening of all nut/bolts for noiseless operation of AHU. Note: Servicing shall be carried during the commencement of contract and after sixth month from first servicing as mentioned in Work order No. 1/extended date of completion. Rate of the same shall deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for servicing to condensor (3 Nos) of 3 x 18 TR AC plant installed at DIT including opening the end plates, carrying out the descaling with descaling compound and pull through with nylon brush in each tubes, cleaning thoroughly with water, refixing the end plates to its existing position to ensure leak proof area complete all as specified and as directed by the Engineer-in-Charge. Note: Servicing shall be carried during the commencement of contract and after sixth month from first servicing as mentioned in Work order No. 1/extended date of completion. Rate of the same shall deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for welding/brazing of Muffler for arresting of leaking and after welding applying synthetic enamel paint including cleaning of muffler complete all as specified and as directed by the Engineer-in-Charge.

M&L for servicing FRP type cooling tower of capacity 40 TR at DIT including cleaning of sump, circulation of descaling compound, checking the smooth operation of CT fan, distribution arms and fan guard for noise free operation complete all as specified and as directed by the Engineer-in-Charge.

M&L for repair to suction & discharge valve of compressor 3x18 TR of capacity by means of replacing the teflon washer sheet, suction & discharge valve ring, spring, 'O' rings, gaskets etc complete and testing for proper holding of valve, leak testing etc all as specified and as directed. Note : The rate inclusive of suction & discharge valve which is considered as one job.

M & L for leak testing of AHU unit cooling coil 20000 CFM at DIT after pumping down the complete system, isolating the cooling coil from both ends and charging the dry nitrogen gas for pressure leak test, after detecting leak point, release the nitrogen gas, repairing the leak point but means of soldering/brazing and connecting the cooling coil with system, vaccumised the complete system and re-charge the system by refrigerant , testing and commissioning up to satisfactory cooling performance complete all as specified and as directed by the Engineer-in-Charge. Note: (i) Refrigerant gas shall be measured and paid separately as supply only. (ii) Nitrogen gas required deemed to be inclusive in the quoted rate.

M&L for opening of condensor and removing of unsv condensor tube from existing position without damaging then supply and fixing of condensor tube size 5x8 inch dia 5 feet length including cleaning of condensor after repairing and pumping down the gas complete all as specified and directed by Engr-in Charge.

Taking out unserviceable CT motor 3.0 HP suitable for central AC plant of cap 3x18 TR and rewinding with super enamelled copper winding wire including replacement of bearings and testing after rewinding and refixing to its existing location complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable V belt for compressor SMC for central AC plant complete all as specified and as directed by the Engineer-in-Charge. Make: Fenner model No. B 78 or equivalent in Asian.

Supply and fix in replacement of unserviceable V belt for AHU for central AC plant of cap 3x18 TR complete all as specified and as directed by the Engineer-in-Charge. Make: Fenner model No. B 92 or equivalent in Asian or existing as per site.

M&L for servicing of compressor of capacity 18 TR (3 Nos) of Central AC plant installed at DIT opening of top head of the compressor and replacement of following minor items complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of liquid line valve fixing in exiting position including welding in proper position after fixing checking of leaking and leak arrest etc for compressor SMC 65 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No H-01 or equivalent in Rotex or existing as per site.

Supply and fix in replacement of unserviceable solenoid valve for fluid control having coil voltage 230 volts including connections suitable for SMC 65 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL/Rotex or existing as per site.

Supply and fix in replacement of unserviceable course filters box type of size 62x62x4 cm to AHU of cap 36 TR suitable for SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL/Rotex/Athlete or existing as per site.

Supply and fix in replacement of unserviceable oil pump suitable for SMC 65 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No I-01 or equivalent in Rotex or existing as per site.

Supply and fix in replacement of unserviceable gear and brush for oil pump assembly suitable for SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL/Rotex or existing as per site.

Supply and fix in replacement of unserviceable oil strainer suitable for SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No A-10 or equivalent in Rotex or existing as per site.

Supply and fix in replacement of unserviceable bushing as per site requirement size for crankshaft of compressor model SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No C-03 or existing as per site.

Supply and fix in replacement of unserviceable suction strainer for compressor model SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No M-03 or existing as per site.

Supply and fix in replacement of unserviceable half section of bearing as per site requirement size for compressor complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable cylinder liner for compressor model SMC 865 for compressor complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No F-03 or existing as per site.

Supply and fix in replacement of Expansion Valve capacity of 20 TR including welding/brazing and checking of leaking and leak arrest complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of solenoid valve including weding/gaskit / screwing etc for SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: Rotex or or existing as per site.

Supply and fix in replacement of Liquid line solenoid valve for AHU 20000 CFM including welding, leak testing and leak arrest complete all as specified and as directed by the Engineer-in-Charge. Make: Indfoss or existing as per site.

Supply and fix in replacement of liquid line Y strainer for AHU 20000 CFM & condensor pipe line including welding, leak testing and leak arrest complete all as specified and as directed by the Engineer-in-Charge. Make: Indfoss/Rotex or existing as per site.

Supply and fix in replacement of unserviceable set of gasket for compressor model SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No P-04 or equivalent or existing as per site.

Supply and fix in replacement of unserviceable set of neoprene 'O' ring for compressor model SMC 865 complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable thrust bearing for crank shaft suitable for compressor model SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL cat part No C-02 or existing as per site.

Supply and fix in replacement of unserviceable discharge pressure gauge 0 to 300 PSI of dia 4" complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable water pressure gauge 0-150 PSI 4" dia dial type complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable Thermometer industrial type complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable oil pressure gauge 0 to 150 PSI of dia 4" complete all as specified and as directed by the Engineer-in-Charge. Make: H-Guru/Feibeg or existing as per site.

Supply and fix in replacement of Teflon washer for suction valve for compressor SMC 865 complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of Teflon washer for Discharge valve for compressor SMC 865 complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of Unloading cylinder for compressor SMC 865 complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of Gate valve suitable for 80 mm dia GI pipe complete all as specified and directed by Engr-in-Charge

M&L for taking out unserviceable squirrel case motor and rewinding squirrel case motor of mono block pump set of capacity 5 HP 3 phase for DIT and AFCME AC plant with super enamelled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and as directed by the Engineer-in-Charge. Make: Kirloskar or equivalent.

M&L for servicing to 3 x 12 TR (36 TR) air cooled central AC unit installed at AFCME including washing of evaporator unit, condensing unit, greasing to condensor motor for noise free operation, servicing to ceiling suspended AHU-04 Nos, cleaning of air filters, tightening of electrical/mechanical connections complete all as specified and as directed by the Engineer-in-Charge. Note: Servicing shall be carried during the commencement of contract and after sixth month from first servicing as mentioned in Work order No. 1/extended date of completion. Rate of the same shall deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for painting LT Panel installed for central AC plants at AFCME & WAC Ops room as per existing colour code with one coat of synthetic enamel paint with the help of spray grun after cleaning and preparation of surfaces complete all as specified and as directed by the Engineer-in-Charge.

Supply and fixing in replacement of water flow switch including control cable from panel to switch , electrical connection, welding , screwing complete all as specified and as directed by the Engineer-in-Charge. Make: Indfoss or equivalent for suitable existing items .

Taking out unserviceable AHU motor and rewinding AHU blower motor 1 to 3 HP 3 phase 415 V 50 Hz installed at AFCME with copper winding wire including insulation thimbles greasing & replacement of minor spare parts such as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and directed by Engr-in-Charge.

M&L for refrigerant charging (M-22/F-22/R-22) for central AC plant including pressure testing the complete plant by dry nitrogen gas by separating high side and low side, rectifying the leakage by gas welding brazing pressure testing vacuuming the system and re-charging the system with gas, testing and commissioning complete all as specified and directed by Engr-in Charge. Note:- Any leakage occurs after charging of gas same shall be repaired and rectified by contractor without claiming extra cost from department.

Supply & filling compressor oil suitable as per existing viscosity for SMC 865 complete all as specified and as directed by the Engineer-in-Charge. Make: SERVO-68/CASTROL or equivalent.

S&F in replacement of Suction service valve , fixing in proper position and taking down unsv items including arresting of leaking and pressure testing, gas charging , nitrogen gas charging, and suitable size gas kit with nut bolts and washer complete all as specified and as directed by the Engineer-in-Charge. Make: ACCEL .

S&F in replacement of Discharge service valve , fixing in proper position and taking down unsv items including arresting of leaking and pressure testing, gas charging , nitrogen gas charging, and suitable size gas kit with nut bolts and washer complete all as specified and as directed by the Engineer-in-Charge.

S&F in replacement GI tubing medium grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete all as specified and as directed by the Engineer-in-Charge for the following.

(a) GI Tubing 50 mm dia.

(b) GI Tubing 65 mm dia.

(c) GI Tubing 80 mm dia.

Supply and fix in replacement of discharge safety valve with checking of leak testing complete all as specified and directed by Engr-In-Charge

S & F in replacement of Oil HP cut out Type MP - 5 suitable for M-22/F-22/R-22 gas complete all as specified and as directed.

S & F in replacement of Gas LP/HP combination cut out MP - 15 Suitable for M-22/F-22/R-22 gas complete with flare nut complete all as specified and as directed.

S& F in replacement of 16 Sqmm Copper cable, 3 core for compressor connection from panel to compressor complete all as specified and directed by Engr-in-Charge, Make: Havells/Polycab/Anchor

S& F in replacement of earth leakage relay suitable for 3x18 TR compressor motor starter complete all as specified & directed. Make: L&T or equivalent.

Supply & fix replacement of ammeter with ratio of 100/5 Amps complete all as specified & directed.

Supply & fix replacement of voltmeter 0-500 V AC supply 50 Hz complete all as specified & directed.

Supply and fixing Electrical wiring of panel with suitable 1.5 Sq.mm/2.5 Sqmm (nominal area) PVC unsheathed multi stranded copper conductor PVC insulated 1100 volt FRLS grade single core cable, testing and commissioning of complete power system including taking down and refixing of serviceable conductor, timer,overload relay,earth leakage relay, MCCB, servicing of starter etc. satisfactory operation of the AC plant of capacity 3x18TR complete all as specified and directed. Note:- Addtional spare parts measured and paid separately.

Supply and fix in replacement of unserviceable MCCB 200 amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete all as specified and as directed by the Engineer-in-Charge.Make: L&T/Havell's/Indo Asian.

Supply and fix in replacement of unserviceable MCCB 160 amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete all as specified and as directed by the Engineer-in-Charge.Make: L&T/Havells/Indo Asian.

Supply and fix in replacement of unserviceable MCCB 100 amps 4 pole 25 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting including taking out old unserviceable MCCB from panel complete all as specified and as directed by the Engineer-in-Charge.Make: L&T/Havells/Indo Asian.

Supply and fix in replacement of unserviceable MCCB 100 amps 3 pole 25KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting including taking out old unserviceable MCCB from panel complete all as specified and as directed by the Engineer-in-Charge.Make: L&T/Havells/Indo Asian.

Supply and fix in replacement of unserviceable contactor MNX-12 2 pole with thermal magnetic release and 1 NO complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable add on contacts MNX A2 with 1 NO+NC complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable add on contacts MNX A1 with NO+NC complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable MCB TP 'C' curve 16-32A complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable MCB C curve TPN 'C' Curve 63A complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable MCB DP 63A complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

S&F in replacement scroll compressor of cap 12.5 TR with washers, bolts and nuts three phase 415 V 50 Hz suitable for central AC plant including brazing leak test of the system with compressed nitrogen and testing the unit for satisfactory functioning complete all as specified and as directed by the Engineer-in-Charge. Make : Kirloskar (Copeland) or equivalent in Danfoss.

Charges for attending to central AC plant complaints for rectification of minor complaints in LT panel, control Panel, AHU, Compressor and condensor including replacement of minor parts like nut bolts, washer, small gaskit, complete all as specified and directed by Engineer-in-Charge

M&L for insulation to chilled water piping with 12 mm thick rubber nitrile with Aluminium foil of density 30 Kg/Cum for 65 mm chilled water pipe complete with rubber based adhesive Pidlite SR 998/equivalent and thermal conductivity not exceeding 0.0035 W/Mk at an average temp of 40 Degree C complete all as specified and as directed by the Engineer-in-Charge.

M&L for insulation to chilled water piping of central AC plant of following sizes with 19 mm (for all pipes) and 13 mm (for drain pipes) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/Cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C, covered with aluminium faced foil complete with application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on both longitudinal & transverse joints simultaneously complete all as specified and as directed by the Engineer-in-Charge for the following

(a) 65 mm dia chilled water pipe including valves, strainers etc.

(b) 50 mm dia drain pipe.

(c ) 80 mm dia chilled water pipe including valves, strainers etc.

M&L for insulation to HDPE expansion tank of size 1000 Ltr of central AC Plant with suitable FR-XLPE/XPE 19 mm thick of minimum bulk density 28+/-4 Kg/Cum covered with vapour barrier and finished with 0.5 mm thick aluminium cladding and application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on joints complete all as specified and as directed by the Engineer-in-Charge.

S& F in replacement of Micron filter capable of filtering perticels upto 5 micron size of 24x24x6 fixing in AHU at DIT central AC plant including repair/replacemnt of angle iron and necessary nut bolts complete all as specified and directed by Engr-in-Charge.

M&L for replacement of Diffuser round/square type fixing duct at roof including taking down existing unsv items and fixing new diffuser suitable for existing size and shape with nut blots and clamps complete all as specified and directed by Engr-in-Charge.

Taking out unserviceable induction electric motor of 18 TR compressor and rewinding induction electric motor 25 HP 3 phase 415 V at DIT AC plants for compressor with copper winding wire including insulation thimbles greasing & replacement of minor spare parts such as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of 6 Sqmm PVC insulated and FR sheathed copper Control Cable , 3 core 1100 V conforming IS 694 for AHU motor including connection from panel to Motor complete all as specified and directed by Engr-in-Charge.

S&F in replacement PVC fills as per existing model and size heavy duty for forced draught type cooling tower of central AC plant complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in capacity of Expansion Valve capacity of 12.5 TR installed at AFCME central AC plant including welding/brazing and checking of leaking and leak arrest complete all as specified and as directed by the Engineer-in-Charge. Make: Danfoss

M&L for repair tounserviceable PCB board suitable for central AC plant installed at AFCME & other certain locations of compressor 3x12.5 TR capacity by means of re-programming of PCB as per existing software complete and testing for proper working of PCB complete all as specified and as directed.

M&L cross arms bracings supports clamps and back plates fabricated from structural steel sections including nuts bolts washers welding bending cold or hold drilled holes for bolts in any shape or size as indicated or directed and inclusive of one primer coat one under and one finished coat of paint for installation of make up water tank complete all as specified and as directed by Engineer-in-charge.

M&L for taking out unserviceable condensor fan motor and rewinding of motor for air cooled central ac plant at AFCME with super enameled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and as directed by the Engineer-in-Charge.

M&L in replacement of base frame of monoblock condensor pump with capacity 5 HP including spare parts like key, washers, nuts and bots ets and testing after refixing to its existing location complete all as specified and as directed by engineer -in-charge.

M&L for servicing to condensor (3 Nos sets) of 3 x 25 TR AC plant installed at OPs Room including opening the end plates, carrying out the descaling with descaling compound and pull through with nylon brush in each tubes, cleaning thoroughly with water, refixing the end plates to its existing position to ensure leak proof area complete all as specified and as directed by the Engineer-in-Charge. Note: Servicing shall be carried during the commencement of contract and after sixth month from first servicing as mentioned in Work order No. 1/extended date of completion. Rate of the same shall deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for servicing FRP type cooling tower of capacity 60 TR including cleaning of sump, circulation of descaling compound, checking the smooth operation of CT fan, distribution arms and fan guard for noise free operation complete all as specified and as directed by the Engineer-in-Charge.Note :- Servicing shall be carried during the commencement of contract and after sixth month from first servicing as mentioned in Work order NO 1/extended date of completion.Rate of the same shall deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for repair to suction & discharge valve of compressor 3x25 TR of capacity by means of replacing the teflon washer sheet, suction & discharge valve ring, spring, 'O' rings, gaskets etc complete and testing for proper holding of valve, leak testing etc complete all as specified and as directed. NOTE: The rate inclusive of suction & discharge valve which is consider as one job.

S & F in Replacement of panel air filters, dry type, washable, rated air flow capacity 1600 CFM 99.9%, down to particle 20 micron of Suitable sizes or nearest for AHU of central AC plant complete all as specified and as directed by the Engineer-in-Charge..

Supply and fix in replacement of liquid line Y strainer for AHU 20000 CFM and condenser pipe line including welding, leak testing and leak arrest complete all as specified and as directed by the Engineer-in-Charge.. Make: Indfoss/Rotex or existing as per site.

M & L for Preparation of old painted surfaces and applying two coats of synthetic enameled paint to external surfaces of chiller units - 03 No's, including foundation of compressor & motor units- 03 No's, suction & discharge refrigerant pipe line, condenser water pump with motor & foundation - 02 No's, chiller water pump with motor & foundation-02 Nos water pipe line, AHU unit and motor/blower- 01 No, cooling tower with motor -01 No condenser - 03 No's sets of any capacity of central AC plant at 3x25 TR AC plant complete all as specified and directed by Engr-in- Charge.

Supply and fix in replacement of unserviceable 3 pole power contactor ML-1 complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or existing as per site.

Supply and fix in replacement of unserviceable 3 pole power contactor ML-1.5 complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or existing as per site.

Supply and fix in replacement of unserviceable 3 pole power contactor ML-2 complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or existing as per site.

Supply and fix in replacement of unserviceable 3 pole power contactor ML-3 complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or existing as per site.

Supply and fix in replacement of unserviceable timer unit ET-100, 0-60 sec complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or existing as per site.

Supply and fix in replacement of unserviceable Single phase preventer (Auto reset, 40 Volts unbalanced) VSP-2 complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable thermal overload relay 6-10 Amps as per existing make complete all as specified and as directed by the Engineer-in-Charge.Make : L&T/CG/Havells.

All as per item No 92.00 here in before but 10-16 Amps complete all as specified and as directed by the Engineer-in-Charge. Make : L&T/CG/Havells.

All as per item No 92.00 here in before but 20-32 Amps complete all as specified and as directed by the Engineer-in-Charge. Make : L&T/CG/Havells.

Supply and fix in replacement of unserviceable overload relay 25 Amps complete all as specified and as directed by the Engineer-in-Charge.Make: L&T or equivalent.

All as per item No 95.00 here in before but 25-40 Amps complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCB C curve TP 63A complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and fix in replacement of unserviceable MCB C curve SP 6-32A complete all as specified and as directed by the Engineer-in-Charge. Make: L&T or equivalent.

Supply and lay (in trenches/duct/fixing to pole/wall or in such similar position ) LT UG cable XLPE insulated armoured and PVC sheathed LT 1100 volts grade with aluminium conductor in replacement of existing U/s UG cable including taking down old unsv UG cable from existing position of following stranded of sizes :-

(a) 10 Sqmm 4 core

(b) 25 Sqmm 4 core

(c) 35 Sqmm 3.5 core

(d) 50 Sqmm 3.5 core

Supply and installation in replacement of phase frequency corrector of capacity 200 HP of 3 phase corrector for 3 phase central AC plant other 3 phase items , electrically controlled with interlocking system duly pre wired with multi stranded copper wire of durable rating , powder coated metallic housing with hanged door and indicator for each phase. current rate 40A- 300 A, Voltage rating 440V complete all as specified and directed by Engr-in- Charge.

Supply and fix in replacement of unserviceable filter drier connected with compressor with existing model complete all as specified and as directed by the Engineer-in-Charge.

M&L for repair to 3 phase monoblock water pump set of capacity 7.5 HP including rewinding in replacement of bearings, seal, cleaning of parts and carry out necessary inspection for wornout parts, replacement of old unsv worn out parts,also replacement pump motor casing and refixing the unit to its existing location after completion of overhauling/repair complete all as specified and as directed by the Engineer-in-Charge.

M&L for taking out unserviceable squirrel case motor and rewinding squirrel case motor of mono block pump set model KDS-527 of capacity 5 HP 3 phase with super enameled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes and also replacement pump motor casing etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and as directed by the Engineer-in-Charge. Make: Kirloskar.

M&L for painting Servo Voltage stablizer of cap 200 KVA as per existing colour code with one coat of synthetic enamel paint with the help of spray gun after cleaning and preparation of surfaces including writing SM/MES No with white letters on black back ground complete all as specified and as directed by the Engineer-in-Charge.

Taking out unserviceable AHU motor and rewinding AHU motor 12.5 HP 3 phase 415 V with copper winding wire including insulation thimbles greasing & replacement of minor spare parts such as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and directed by Engr-in-Charge.

Taking out unserviceable CT motor 5 HP suitable for cooling tower with capacity 60 TR and rewinding with super enamelled copper winding wire including replacement of bearings and testing after rewinding and refixing to its existing location complete all as specified and as directed by the Engineer-in-Charge.

Supply & filling refrigeration gas R-407C in manufacturer sealed cylinder including pressure testing the complete plant by dry nitrogen gas by separating high side and low side, rectifying the leakage by gas welding brazing pressure testing vacuuming the system with gas, testing and commissioning complete all as specified and as directed by the Engineer-in-Charge. NOTE:- (i) Gas to be supplied in manufacturer sealed container. (ii) Empty containers will be returned to contractor .

Supply & filling transformer oil in servo stabilizer of capacity 200 KVA complete all as specified and as directed by the Engineer-in-Charge. Make: Servo/Castrol or equivalent.

Supply, installation, testing and commissioning in replacement electric strip heater in replacement to unsv one for winter heating and monsoon reheating with finned type heaters of cap 3 KW including end terminations complete all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of condenser water and chilled water pipes of MS heavy grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete all as specified and as directed by the Engineer-in-Charge for following sizes: Make: Jindal/TATA or equivalent

(a) 100 mm dia.

(b) 80 mm dia.

(c) 65 mm dia.

S&F in replacement GI tubing medium grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete all as specified and as directed by the Engineer-in-Charge for following sizes: Make: Jindal/TATA or equivalent

(a) GI Tubing 15 mm dia.

(b) GI Tubing 20 mm dia.

(c) GI Tubing 25 mm

(d) GI Tubing 32 mm dia.

S & F in replacement of Oil HP cut out Type MP - 5 suitable for R 407C gas complete all as specified and as directed.

S & F in replacement of GAS LP/HP combination cut out MP - 15 Suitable for R 407C gas complete with flare nut complete all as specified and as directed.

S & F in replacement of solenoid pilot control valve type 10 with two / three coil assembly of same model complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix in replacement of Gate valve suitable for 50 mm dia MS pipe complete all as specified and directed by Engr-in-Charge

Supply and fix in replacement of butterfly valve suitable for 80 mm dia MS pipe complete all as specified and directed by Engr-in-Charge

Supply and fix in replacement of butterfly valve suitable for 65 mm dia MS pipe complete all as specified and directed by Engr-in-Charge

S& F in replacement of earth leakage relay suitable for 3x25TR compressor motor starter complete all as specified & directed. Make: L&Tor equivalent

Supply and fix in replacement of unserviceable V belt for AHU for central AC plant of cap 3x25 TR complete all as specified and as directed by the Engineer-in-Charge. Make: Fenner model No. B 76 or equivalent in Asian or existing as per site.

Supply and fixing Electrical wiring of panel with suitable 1.5 Sq.mm/2.5 Sqmm/4 Sqmm (nominal area) PVC unsheathed multi stranded copper conductor PVC insulated 1100 volt FRLS grade single core cable, testing and commissioning of complete power system including taking down and refixing of serviceable connector,thimble, timer,overload relay,earth leakage relay, MCCB, servicing of starter etc. satisfactory operation of the AC plant of capacity 3x25TR complete all as specified and directed. Note:- Additional spare parts measured and paid separately.

Supply and fix in replacement of Expansion Valve capacity of 11 TR including welding/brazing and checking of leaking and leak arrest complete all as specified and as directed by the Engineer-in-Charge.

M&L for repair to unserviceable PCB board suitable for central AC plant installed at AFCME & other certain locations of compressor 2x12.5 TR capacity by means of re-programming of PCB as per existing software complete and testing for proper working of PCB complete all as specified and as directed.