REPAIR MAINTENANCE OF AC PLANT WITH ALLIED WORKS UNDER GE (MCTE) MHOW

Comprehensive maintenance of Central AC plant of 2 x 52 = 104 TR capacity (in working) with water cooled microprocessor based having scroll compressor, chilled water system type, through regular maintenance by a trained mechanic &as per OEM specifications as approved by GE, as and when required (on order) for checking/ rectifying defects to make the plant in serviceable condition within 48 hours in case of Major break down, alongwith all tools, brazing tools and materials electrical testing tools etc to make plant serviceable including setting of in/out temperature of microprocessor control panel and also dismantling, refixing, serviceable parts and replacing of defective parts if required (New parts shall be measured and paid seperately under respective item of "Sch A" as Supply only or through Prime cost sum) complete all as specified and directed. (Make : Blue star or as per existing make). The Work per unit include the following:- (i) Trained Rep along with Ref Mechanic will visit every months for routine maintenance. However, during any emergncy or breakdown, Rep of contractor shall visit the site within 24 hrs for minor repair and within 72 hrs for Major repair. If rep of contractor not atteneded within the time frame as mentioned then penal recovery of Rs 1000/- per hrs shall be recovered from the contractor. So, tenderer's are advised to keep this aspect while quoting the rate. (ii) Checking of proper functioning of microprocessor and all its parameters are as specified if any error, resetting as per design condition. (iii) Checking, repairing of control wiring, pump set for both the Chiller unit and Colling tower motor or as specified. (iv) Checking/ setting of water flow switch, HP & LP switch. (v) Checking of refrigerent gas pressure and oil level in compressor. (vi) Checking for proper functioning of AHU, chiller & condensor as per design parameter. (vii) Functioning of compressors, charging of ref gas with provn of all T&P. (viii) All other functioning of control parameter of AC plants required for achieving design parameter of conditioned space. (ix) General cleaning of all equipment are also included in the scope and rate shall deemed to be included in the unit quoted rate. (ix) After carrying out visit by OEM, OEM will submit report to the Dept regarding serviceability status and based on that report defective spare parts shall be replaced.

All as per Srl item No. 1.00 here in before but of central AC plant of capacity 1 x 39 = 39 TR (Operational) complete all as specified and directed.

Material and labour for Central AC plant of 2 x 52 =104 TR capacity (Operational) by de -scaling and cleaning of tubes of condenser (heat Exchanger) unit of central AC plant including opening and refixing of condensor head in origional position all as required at site for shell and tube condenser unit of Central type AC plant by using proper descaling solution by suitable size of drill rod, wire brush, cleaning by circulating pressure water by pressure pumps till the complete deposits/ scale is removed as ordered, replacement of packing gasket, nuts, bolts with washer of both ends of condensor complete all as specified and directed.

All as per Srl item No. 03.00 here in before but of capacity 1 x 39 = 39 TR (Operational), complete all as specified and directed.

Material and labour for descaling air cooled type condensers of package AC plant of capacity 8.5 TR with cleaning acid as per OEM recommendation by forced feed method to remove the dust particles formed on the coil and fins complete all as specified and directed.

Material and labour for repairing and servicing of cooling tower of central type AC plant by dismantaling of cooling tower for removing of top cover and cleaning of PVC fills, choked nozzle, PVC louvers and replacement of rusted nuts, bolts with washer etc and cleaning bottom tank to remove dust and mud sand and painting of damged surface oiling of motor and checking of serviceability of motor including painting the interior and exterior parts of cooling towers with epoxy seal paint as per the manufactures specifications complete all as directed. Note:- Spare parts if required shall be measured separetely.

Material and labour for dismantling/ opening air filter, nuts bolts,tray for AHU general servicing including cleaning of cooling coil from both sides with coil cleaning solution and brushing suitable for AHU, correcting tension in belts, checking and correcting allignment of shaft pulley of motor, cleaning primary & secondary filter, blower of capacity as per site installed at various location complete all as specified and directed. Note:- Spare parts if required shall be measured and paid separetely.

M &L for taking out the damaged glass wool/ Nitrile rubber insulation portion of existing wall of AHU room, cleaning the wall, and Material & labour for fixing the rubber nitrile 'O' class not less than 19mm thickness suitable arrangement for fixing to wall and making good the disturbed portions complete all as specified and as directed.

M&L for POP (Plaster of parris) on 150/ 100mm CI pipe of AC palnt, provision of chicken wire mesh including removel of old POP and make good as distrubed surfaces complete all as specified and directed.

Supply and laying GI Pipe 50mm dia medium grade with all fittings, laid in trenches complete all as specified and directed.

Supply and laying GI Pipe 20mm dia medium grade with all fittings, fixes on wall/floor complete all as specified and directed.

S&F in repair Stop valves, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends suitable for 20 Sqmm iron pipe or for unions and fixed complete all as specified and directed.

Supply and charging R-407C gas complete all as specified and directed.

Supply, Fixing and testing in repair Microprocessor with & including display, relay circuit, sensors & display cable for Package units of cap 52 TR including making all electrical connections complete all as specified and directed.

Supply, Fixing and testing in repair Microprocessor with & including display, relay circuit, sensors & display cable for Package units of cap 39 TR including making all electrical connections complete all as specified and directed.

Repair of electric panel by checking defects including required insulation tape, copper wire of existing crossectional area i.e Sqmm with replacement of defective items and making panel serviceable condition, complete all as specified and directed. Note:- Replacement of defective parts shall be measured & separately as supply only.

Supply only Polycarbonate Connector upto 63A, 440 Volt SP, DP, TP & TPN as per existing model complete all as specified and directed.

Supply only MCB TP 6 to 32 Amps, 415 Volts, 10KA, ‘C’ series complete all as specified and directed.

Supply only MCB TPN 6 to 32 Amps, 415 Volts, 10KA, ‘C’ series complete all as specified and directed.

Supply only MCB TP 40 to 63 Amps, 240 Volts, 10KA, ‘C’ series complete all as specified and directed.

Supply only MCB TPN 40 to 63 Amps, 240 Volts, 10KA, ‘C’ series complete all as specified and directed.

Supply only MCCB with Thermal - magnetic release of 125-160 Amps, 3 Pole, 415V, 36 kA, Ics=100% Icu with adjustable over load setting and adjustable short circuit setting including all accessories like spreader terminals and separator, etc. complete all as specified and directed.

Supply only MCCB with Thermal - magnetic release of 125-160 Amps, 4 Pole, 415V, 36 kA, Ics=100% Icu with adjustable over load setting and adjustable short circuit setting including all accessories like spreader terminals and separator etc. complete all as specified and directed.

Supply only MCCB with Thermal - magnetic release of 160-200 Amps, 4 Pole, 415V, 36 kA, Ics=100% Icu with adjustable over load setting and adjustable short circuit setting including all accessories like spreader terminals and separator, etc. complete all as specified and directed.

Supply only Voltmeters/ Ammeters digital type 0 to 500 Volt AC +0.1 accuracy, 3 phase, 415 V including making necessay connections complete all as specified and directed.

LED phase indicator Red/ Yellow/ Blue complete all as specified and approved by GE.

Supply only MNX 25, 3 Pole Power contactor (AC 3 Rating 25 Amp, AC 1 Rating 45 Amp) with aux 1 NO contact & 1 NC contact including making all necessary connections complete all as specified and directed.

Supply only MNX 32, 3 Pole Power contactor (AC 3 Rating 32 Amp, AC 1 Rating 55 Amp) with aux 1 NO contact & 1 NC contact complete all as specified and directed.

Supply only MNX 40, 3 Pole Power contactor (AC 3 Rating 40 Amp, AC 1 Rating 55 Amp) with aux 1 NO contact & 1 NC contact including making all necessary connections complete all as specified and directed.

Supply only MNX 80, 3 Pole Power contactor (AC 3 Rating 80 Amp, AC 1 Rating 100 Amp) with aux 1 NO contact & 1 NC contact including making all necessary connections complete all as specified and directed.

Comprehensive maintenance and repair including renewal/ replacement of minor defective parts of Dehumidifier units including carrying out the Physical and health check up and service, gas pressure, electrical connections, etc. During the check up of Dehumidifier if any parts found unserviceavle to be replaced and then the same shall be measured and paid under prime cost sum. Note:- (i) certified agencies as approved by GE will visit afterevery 03 months for routine maintenance. However, during any emergncy or breakdown, certified agencies as approved by GE shall visit the site within 24 hrs for minor repair and within 72 hrs for Major repair. If rep not atteneded within the time frame as mentioned then penal recovery of Rs 1000/- per day shall be recovered from the contractor. So, tenderer's are advised to keep this aspect while quoting the rate. (ii) Any Spare parts if required then the same shall be measured and paid under Prime cost sum. (iii) certified agencies as approved by GE shall visit after every 03 months for periodical maintenance to check the complete system, to check its functionility and to make them functional. (iv) After servicing, certified agencies as approved by GE has to submit the serviceability certificate duly sign by OEM, User and shall have to submit to Dept for Payment purpose.

M&L for earthing complete with copper earth plate electrode 600mm x 600mm x 3.15mm thick burried directly in ground (Earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below ground level connected to copper strip 20 x 3mm as earth lead by brass nut bolts washer including brazing the copper strip with copper plate as shown in electrical plate No. 3 connected to earth test point including necessary excavation in any type of soil, filling charcoal and salt around the plate in layers, filling the pit with agriculture soil free from stones, to be bring from out side defence land, construction of PCC earth pit chamber of size 600 x 600 x 450mm, RCC chamber cover plate, wire mess, funnel, test point, 40mm dia GI protection pipe light grade and 20mm GI medium grade peforated pipe for watering etc complete and testing on completion. The electrode and lead shall be of copper and connected with existing all as specified and directed by Engr-in-charge.

M&L for copper earth continuity conductor of size 25 x 3.15mm strip with insulator fixed to wall (porcelin insulater 10 BM heavy duty, ceramic bus bar support insulator off white colour of min size of 50mm width x 70mm length with 50mm width bus bar mounting base) for fixing strip or drawn in conduit/ pipe as required, including taking down old GI rusted strip complete all as specified and directed. Note:- Insulator to be fixed on every 50 cm distance and cost of insulator is deemed to be included in unit rate of item.

M&L for preparation of old steel surfaces of any description not otherwise described over 10 cm width or girth of synthetic enamal, anti rust/ anti crossive for suction/ discharge pipe of AC plant and panel board etc in different colour as approved by GE including preparation of surfaces complete all as specified and dierected.