8205-REPAIRS/ MAINT OF REFRIGERATORS, WATER COOLERS, WINDOW/SPLIT AC, PACKAGE TYPE AC, WALK IN COOLER ETC AT OTA, MH , DGQA AND PALLAVARAM AREA UNDER GE STM.

Amount

Taking down unserviceable items Supply and replacing with new items of following for water cooler 40/40 ltrs, 40/80 ltrs and 150/150 ltrs capacity including testing and commissioning etc complete all as specified and directed by Engr-in-Charge.

Thermostat Make : Indfoss/Danfoss/Ranutol/Electrolex

Capacitor 36MFD Make : Keil/Keltron/saha/sarold

Capacitor 10 MFD Make : Keil/Keltron/saha/sarold

Over load protector. Make : Ranutol/Arvind/Shriram

Fan motor capacitor 4/6MFD Make : Keil/Keltron/saha/sarold.

Condenser fan motor 1/32 HP. Make : Frogmaster/Aue/Himson

Condenser fan motor 1/16HP. Make:- Frogmaster/Aue/Himson

Fan blade assembly.

PVC drain hose pipe size 32 mm dia

Drain stainless steel tray with drain elbow and connector

Top lid gasket

PVC connections 15mm size with PTMT nuts of length 450mm

Gate valve brass screwed both ends of size 15mm bore.

Push cock brass chromium plated size 15mm.

Ball brass valves, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed of size 15mm.

M&L for servicing the water coolers of any make and models in situ, comprising cleaning of condensers and storage tanks with cleansing agent such as liquid detergent,lubricating the system with grease or oil as required tightening the bolts nuts etc complete all as specified and as directed.

40/80 ltrs capacity

150/150 ltrs capacity

All as per item No. 1 hereinbefore , but for refrigerator 165 to 310 ltrs capacity.

Door magnetic gasket

Freezer door

Door lock with key

Light switch

PVC ice tray (Each set of two nos)

Cooling coil

Condenser coil

Bulb pin/screw type 10/15watt. Make : Philips

3 pin15amps plug top 240 volts

Relay box type. Make : Ranutol/Arvind/Shriram

Relay 1/6HP Make : Ranutol/Arvind/Shriram

Over load protector 1/6HP. Make : Ranutol/Arvind/Shriram.

Thermostat defrosting type Make : Indofoss/Arvind/Shriram

Material and labour for cleaning filter and servicing the condensor & cooling coil by spraying detergent water washing and caustic soda washing thoroughly cleaning and drying out including taking out and fixing back its original position combing the fins for Window type Air conditioner 1.5 Ton/2.0 Ton capcity all as specified and as directed

Material and labour for cleaning filter, drainout pipe and servicing the condensor & cooling coil by spraying detergent water washing and caustic soda washing thoroughly cleaning and drying out including combing the fins for Split type Air conditioner 1.5 Ton/2.0 Ton Capacity all as specified and as directed

All as per item no 1 hereinbefore but for Window / split type AC 1.5/2.0 Ton capacity

Capacitor 50-60 MFD , Make: Keil/Keltron/saha/sarold

Overload protector (OLP). Make : Ranutol/Arvind/Shriram.

Starting relay assembly . Make :- Ranutol/Arvind/Shriram

Electronic PCB Board for non inverter AC

Electronic PCB Board for inverter AC

Wiring kit complete

Fan motor capacitor 2-5 MFD. Make: Keil/Keltron/saha/sarold

Outdoor unit Fan motor . Make : Frogmaster/Aue/Himson

Condenser Fan blade metal or plastic

Indoor unit blower motor.

Indoor unit blower

Cooling coil copper.

Condensor coil copper.

Standard outer cover

Front panel with grill

Copper pipe for suction and discharge line

Drain pipe

Thermostat Switch Make : Sriram/Ranutrol/Arvind

Air filter

Complete indoor unit set for split AC as per existing make.

Complete outdoor unit set for split AC without compressor and fan motor as per existing make.

Capillary and filter

Suction valve for split AC

Discharge valve for split AC

Outdoor unit wall stand

Dismantling the unserviceable sealed compressor unit from 1.5 TR Window AC / Split AC of any make and model, supply and fixing new sealed compressor unit including, connecting up complete and oil charging, etc., all as specified and directed by the Engineer-in-Charge. Note: Refrigerant gas charged shall be measured under relevant item of Sch 'A'

All as per item no 7 above but for Window /Split AC 2.0 TR capacity.

All as per item no 7 above but for Water cooler 40/80 ltrs capacity.

All as per item no 7 above but for Water cooler 150/150 ltrs capacity.

All as per item no 7 above but for Refrigerator 165 ltrs capacity.

All as per item no 7 above but for Refrigerator 286 to 310 ltrs capacity.

All as per item no 7 above but for Deep freezer 300 to 425 ltrs capacity. Make for item Nos. 7 to 13 : Tecumseh/Hitachi/Panasonic/Highly.

M&L for pressure testing the Window ACs 1.5 Ton, with nitrogen gas after flushing out the system free from refrigerant checking for leakages if any in the refrigerant system making good the leaking spots with necessary brazing/welding, ensuring leak proof system charging the refrigerant gas including replacing the strainer & capillary etc with new items and testing for satisfactory performance complete all as specified and as directed: Note: Refrigerant gas charged shall be measured under relevant item of Sch 'A'

All as per item no 14 above but for Split AC 1.5/2.0 TR capacity

All as per item no 14 above but for Water cooler 40/80 ltrs & 150 ltrs capacity

Leak testing and gas charging the system after flushing, vaccumissing and dehydration as per standard practice including the cost of refrigerant, testing and detecting leakage in the system and arresting the same for 165 to 310 ltrs capacity of the refrigerator

Disconnecting and taking out deep freezer of capacity 300 litre to 425 litre of any make, cleaning the gas system with CTC / nitrogen and charging the refrigerant including the cost of refrigerant with anti moist substance and replacement of capillary tube and strainer including rectification of leakage lin the system and refixing in the same position complete all as specified and directed.

Taking down existing worn out winding from fan motor , rewinding the blower fan motor of window / Split AC capacity of 1.5 TR with super enamelled copper wire of suitable gauge capacity, bringing back to worksite and refixing the same on its position including replacement of bushes all as directed.

All as per item no 19 above but for Water cooler 40/80 and 150/150 ltrs capacity.

Taking out of all rusted portion of Window AC ,making good the same with new MS sheet of approved gauge /existing guage including iron supports by tinkering/welding and positioning back in original place including two anticorrosive black paint over a coat of primer all as specified as directed.

All as per item no 21 above but for Water cooler 40/80 & 150/150 ltrs capacity.

All as per item no 21 above but for Refrigerator 165 to 310 ltrs capacity.

Material and labour for applying two coats of anti corrosive black paint upto 15 cm height of old steel surfaces from the base all round including legs for inside of water cooler of capacity 150 ltrs all as directed

All as per item no 24 above but water cooler capacity 40/80 ltr

Supply and topping up of gas, or filling of gas for split/package type/ window AC/ Refrigerator, Cold storage/ water coolers/ walk in coolers with R-22 gas all as directed

Supply and topping up of gas, or filling of gas for split type inverter AC with R-32/R410a gas all as directed

Supply and fix new MS bottom base for fan motor of any given make for window type AC 1.5 tonne including dismantling the old unserviceable fan motor base all as directed

Supply and fix MS jointing plate for condensor / cooling coil housing for window AC of any make for 1.5 Ton capacity including dismantling the old unserviceable jointing plate all as directed.

Supply and fix ply wood 6mm thick , no of ply 6, grade BWR, type BB at the window AC places as fixed with nails etc and when the AC removed from site as a safety measure all as directed

Dismantling the transformer from the stabilizers of following capacity and removing the old / burnt transformer and replaced with new transformer as per existing make.

Replacement of following spare parts as per existing make for 1 KVA to 2 KVA capacity stabalizers

Relay set ( set of two )

PCB ( Printed circuit board)

Replacement of following spare parts as per existing make for 4 KVA to 5 KVA capacity stabalizers

Relay set ( set of two )

PCB ( Printed circuit board)

COLD STORAGE/PACKAGE TYPE / WALK IN COOLER PLANTS OF CAPACITY 5/5.5 TR.

Material and labour for cleaning filter, drainout pipe and servicing the condensor & cooling coil by spraying detergent water washing and caustic soda washing thoroughly cleaning and drying out including combing the fins for cold storage unit 5/5.5TR all as specified and as directed

Material and labour for cleaning filter, drainout pipe and servicing the condensor & cooling coil by spraying detergent water washing and caustic soda washing thoroughly cleaning and drying out including combing the fins and replacement of minor parts as required for mortuary cabinet all as specified and as directed

M & L Descaling of condensor unit 5.5 TR by circulating dilute hydrochloric acid solution and cleaning the tubes with wire brush by removing the side cover till the tubes are thoroughly cleaned and re-circulating the fresh water after fixing the side cover with necessary gasket and bolt and nuts.

Labour charge for attending breakdown of cold storage/mortuary cabinet and make it functional all as directed. Note : Spares shall be measured and paid separately.

Remeoving the defective sealed type compressor from the of cold storage AC plant/package type AC plant, supply and fix new sealed compressor including reconnecting and testing and commisioning at site all a specified and directed. Make : Tecumseh/Hitachi/Panasonic/Highly.

Testing leak in system ,arresting leak, vacumising the system, flush out the system by nitrogen gas at 350 psi vacumising and testing and commissioning complete for 5/5.5TR capacity walk in cooler / cold storage / package type plants all as speicified and directed. Note: Refrigerant gas charged shall be measured under relevant item of Sch 'A'

Replacement of electronic timer series ETR-350,240v AC 50/60 HZ Contact 240v AC/28VDC 5 A (Resistive) Star-Delta 3.30 second and 6-60 second cat No. Y 847D-1 Make : L & T or equivalent as approved by GE.

Replacement of single phase preventor. Minilac or equivalent.

Supply and fix orifice No 4 as per existing make for walk in cooler all as directed

Replacement of expansion valve make : Sporlan or equivalent for cold storage plant 5/ 5.5TR

Replacement of condenser fan motor with blower set blade of 5 / 5.5TR capacity for cold storage all as directed. Frogmaster/Aue/Himson

Replacement of LP and HP Cut out make : Indfoss or equivalent for cold storage plant 5 / 5.5TR

Supply and fix for gasket entire door of walk in cooler capacity of 5.5 TR etc complete all as speci fied and as directed.

Supply and fix evaporator fan motor for walk in cooler capacity 5.5 TR complete all as specified and as directed. Frogmaster/Aue/Himson

Supply and replacement of pillar block bearing for AHU blower motor of package type 5.5 TR capacity air conditioning all as directed. Make :-SKF/ABC/TATA.

Supply and replacement of liquid line filters, driers Type IDK 083 as per existing make of package type 5.5 TR capacity air conditioning all as directed

Supply and replacement of 'V' belt for blower of package type AC plant Make :- Cat Part No Fenner A 32

Supply and replacement of fan blade as per existing make heavy duty suitable for package type AC plant 5.5 TR

Replacement of suction valve unit for cold storage plant 5 / 5.5TR

Replacement of discharge valve unit as per existing make for cold storage plant 5/ 5.5TR

Replacement of evaporator coil for fan motor complete with blade set suitable for cold storage plant 5 / 5.5TR. Make:- Frogmaster/Aue/Himson

Replacement of service valve Model scroll type Unit as per existing make for cold storage plant 5/ 5.5TR

Replacement of copper pipe 5/8" suitable for 3 ton capacity sealed compressor of cold storage plant of 5.5TR

Replacement of UNSV door lock and assembly for cold storage plant Make :- Blue Star of 5.5TR by new one all as directed

Supply and replacement of condenser fan motor Make: GE or equivalent for package type AC plant 5 / 5.5TR

Replacement of thermostat for cold storage plant 5/ 5.5TR

Replacement of Air break (Power) contactor 3 TF 3200-OA AC 11 rating -16 Amps capacity Make : SIEMENS or equivalent

Material and labour for rewiring of control panel complete, providing inter lock system and serving of electronic PCB Board and display for package type AC plant Make : Blue star 5 / 5.5TR

Supply and replacement of drier core for package type A/C plant 5 / 5.5TR. Make Danfoss

Supply and replacement of starting relay 30 W of range 3.5 to 5 Amps. Make: Siemens or equivalent

Replacement of solenoid valve and cutout switch with N2 testing for cold storage / package type 5/ 5.5 TR capacity air conditioning all as directed. Make : Danfoss or equivalent

Taking down old U/S copper wire and supply & fix three core flexible cord copper wire size 3 core 4 sqmm suitable for window type AC/split AC/water cooler etc complete all as specified and as directed.

Supply and fix Temperature controller assemble for cold storage plant 5.5 TR as per existing make.

Supply and fix MCB SP 06-32 Amps "C" Series. Make Standard/Havells/Indoasian

Supply and fix of water flow switches as per existing make of package type 5.5 TR capacity air conditioning etc complete all as specified and as directed.

Supply and fix dryer as per existing make 5/8 for walk in cooler capacity 5.5 TR complete all as specified

Supply and replace electronic control unit with display board for 5.5 TR package type AC and make the system functional all as directed.

Supply and replace complete outdoor Refrigeration unit for 5.5 TR walk in freezer and make the system functional all as directed.

Supply and replace complete indoor unit for 5.5 TR walk in freezer including microprocessor controller, copper piping and wiring from controller unit to indoor and outdoor unit , drain heater and pipe and make the system functional all as directed.

Supply ,Fabricate, install, connect, test and commissioning LT feeder pillar, powder coated, outdoor weather proof type, compartmentalised fabricated with 3.15 mm thick CRCA steel and suitable sized pressed steel frame work, top with sloping canopy, bottom with detachable plates, front and rear with hinged type door and locking arrangements, chamber for cable entry and exit , chamber for aluminium busbars, separate compartment for each switch gear, louvers and air vent for natural air flow, holes drilled for connection including suitable angle iron/flat iron frame work/ supports, excavation, earth work, PCC foundation etc., as required with and including following switch gear items internally connected with suitable capacity aluminium strip/ rods insulated, complete mounted on PCC pillars complete all as specified and comprising of the followings:-

(i) INCOMING :-(a) MCCB fixed thermal magnetic release type of capacity 250 amps, 4 pole, : 25 kA.- 1 Nos. (b) Digital Ammeter - 1 No (c) Digital Voltmeter - 1 No (d) 4 Nos busbar of equal size of Aluminium conductor with PVC coloured heat shrinkable type sleeves continuous rating of 400 Amps mounted on fibre reinforced insulator. - (1set) (e) LED indication lamps - 1 set (ii) OUTGOING :- (a) MCCB fixed thermal magnetic release type of capacity 125 amps, 4 pole, 415 Volts, 50 Hz , : 16kA, - 3 Nos. Note : All MCCBs and change over shall be front handle operated.

Supply and Replace Vertical TP&N DB IP43, 4 way with metal door including Incomer 3 pole MCCB of 160A rating &16 kA breaking capacity, 4 Nos TP MCB 40 A, with electrical connection complete all as specified and as directed by Eng-in-Charge. Make:-Legrend or equivalent model in Havells / L&T / Indo Asian.

Supply and fix PVC FR insulated copper wire single core, 1100volts , 10 sqmm size. Make : Finolex/Havells/Plaza.

M&L for Rigid non metallic PVC conduit of size 25mm exclusive of boxes (junction/terminal) but inclusive of all tees, bends, elbows, reducers, bell mouth tub ends and fixing accessories such as couples, lock nuts, saddle, pipe hooks in concealed position and making good disturbed surface etc.

Earthing complete with galvanised steel earth plate electrode of size 60 cm x 60 cm x 6 mm thick burried directly in ground vertically to a depth of not less than 2.25 mtr below normal ground level with top edge of earth plate not less than 1.5 mtr below normal ground level, connected to galvanised iron earth strip of size 25x4 mm by means of bolts, nuts, washers and check nuts made out of galvanised iron, protected by GI pipe light grade 15 mm bore dia and connected to main control board all as shown in Electrical plate No 5 of MES SSR Part I including necessary excavation and earth work in any type of soil, salt, charcoad dust, PCC 1:2:4 type B1 in chamber, RCC 1:2:4 chamber cover with 6 mm dia MS bar at 100 mm centre to centre both ways and MS 6 mm dia hook complete all as specified and directed.

Removing the old unserviceable LT UG cable and supply and Laying in trenches/poles/wall etc LT UG Cable XLPE insulated & PVC sheathed with multistranded aluminium conductor armoured with galvanised steel wire tape 1100 volts grade conforming to IS specifications and of size 50 sqmm 3.50 core.

Supply and lay M S Pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc of sizes as shown of size 65 mm dia.

Replacement of MS flange having holes suitable for 65MM sizes of pipe including jointing material such as rubber gasket bolt units and washers etc in place of unserviceable all as directed

S & F rolled mild steel work in joist, channel, angle, or tee sections, fixed independently, without connecting plates etc., cut to within 20mm of the length indicated, quality confirming to GDE Fe-410-S for cooling tower repair and pump mounting base complete all as specified and as directed.

Painting of cooling tower inner side and outer side one coating of Red oxide two coating of existing colour of synthetic enamel paint after cleaning and scrubbing of capacity 22TR.

Replacement of PVC honey comb fills (drift eliminators) suitable size of 22 TR plant all as specified and directed.

Servicing of LT AC plant panel board of any size including connected starter panels and wirings, cleaning of panel board inetrnally and externally, tightening of all screws and nut & bolts, replacing of minor parts like screws, washers, lugs etc, checking of serviceability of all switch gears and replace the following items as required :-

Replacement of electronic timer 240v, 50 Hz, 3-30 sec for star delta starter. Make L & T

Replacement of MNX 18 W contactor assy AC - 3 415 V 16 Amps . Make L & T

Replacement of contactor combination (Relay) 2 - No + 2 NC 415 Volts 10 Amps . Make L & T

S & F MCB TPN 20A Amps 415 volts with rupturing capacity 10 KA Make Havells

S & F MCCB 3 pole 100A Amps 415 volts Fixed type with breaking capacity 18 KA,

Supply and replace 3 Phase Flush Mounting Ammeter,Class 1 meter,96X96 mm 3 Ph 4W 240V 5A Make : L&T /AE/Legrand.

Supply and replace 3 Phase Flush Mounting Voltmeter,Class 1 meter,96X96 mm 3 Ph 4W 240V 5A Make :L&T /AE/Legrand.

Supply and replace standard universal LED indicators of colour RYB. Make: L&T /AE/Legrand.

Supply and fix MCB single pole 6-32 A, 230 volts, C series . Make : Havells /Indo Asian/ Legrand.

Dismantling the mono block pump set 3 HP with motor rewinding the motor with suitable enamelled copper wire, varnishing, providing sleeves and insulating materials including servicing of pump, repairing the defectrive spares and assembling and testing for the following capacity.

Dismantling the Induction motor for AHU rewinding the motor with suitable enamelled copper wire, varnishing, providing sleeves and insulating materials including repairing the defectrive spares and assembling and testing for the following capacity.

Painting of mono block pump set with motor of any capacity with two coats of synthetic enamel paint after cleaning and scrubbing.

S & F in replacement butterfly valve 65mm dia with handle

Supply and replace air filter suitable for 5.5 TR package type AC with frame all as specified and directed.

Painting of condensor pipe line inlet and outlet( length upto cooling towerbasin ) and chiller pump pipe line inlet and outlet(length up to plant room wall) one coating of existing colour of synthetic enamel paint after cleaning and scrubbing including marking and numbering complete all as specified and directed .

Dismantling and fixing the cooling tower service panel and drain out complete water cleaning of honey comb fills, drift eleiminators , Nozzels by castic soda and wire brush and cleaning the cooling tower tank and removed all algae from the basin and removing sediments from the GI pipes and cleaning the sump suction filter of capacity 22 TR

Supply and fix single pole and neutral sheet metal enclosure with two pin and earth plug and socket complete with and incluidng single pole MCB 20 Amps. Make:- Standard/Havells/Indoasian

M & L for sub main wiring with PVC insulated, 1100 volts grade single core multistranded copper conductor cable conforming to IS specifications, 2 runs of 6 sqmm including one run of 2.5 sqmm single core multistranded copper conductor PVC insulated cables as earth continuity conductor drawn through and including one run of 25 mm dia rigid PVC conduit and conduit accessories or casing capings incl accessories fixed on wall/ceiling etc., or concealed in wall and connecting to common earth dolly all as specified and directed. Note: 2 runs of 6sqmm,1 run of 2.5sqmm and 1 run of PVC conduit shall be measured as one lenght

Servicing of Air Curtain of size 6' (Make : Almonard), cleaning inetrnally and externally, tightening of all screws and nut & bolts, replacing of minor parts like screws, washers, etc, including replacement of bush, checking of serviceability of all components and replace the following items as required :- Note : Service shall be done through authorised service provider only.

Supply and replace motor single phase 4 pole, 1/5 HP.

Supply and replace Impeller metal bush.

Supply and replace Impeller pin bush.

Supply and replace Bush bearing set.

Supply and replace AS-3 smart Impeller.

General Notes : 1. Repairs will be notified as complaints at complaint cell of GE STM Chennai and DGQA Chennai Complaints will be attended in all working days, holidays including sundays. 2. The contractor shall deploy one Ref Mech and one helper on all working days to report at both the complaint cell by 0900 Hrs to receive the complaints. 3. Complaint slip should be submitted in the complaint cell by evening 1700 Hrs duly rectified the defect. 4. The rate quated is deemed to include for receiving complaints, all materials and labour required for rectification of complaints and closing the complaints to the satisfaction of Engr-in-Charge.

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