VARIOUS REPAIRS/MAINT WKS OF AC/ DUCTING SYS/DEHUMIDIFIER/CHILLED WATER DISTR SYS/BLOWERS/FILTERS ETC INCL REPLACEMENT OF ELECT SWITCH GEARS AND CONNECTED AC WKS IN VARIOUS BLDG AT 31 WEU/NRS THANE/NTS MAHUL/WED UNDER CWE(SUBS)MUMBAI

Supply and fixing in replacement /suction Discharge stop valve housing 3" confrming to cat part No ASL-6026-3 of ACCEL complete all as specified and as directed.

M&L for disconnecting from electic supply and dismentaling from foundation, taking out opening completely fo servicing of Chiller upto 30 TR unit comprising of compressor and sqiurral cage induction motor of any type and capacity including complete removal dust/ slug/rust found on any part movable/immovable, and replacement U/s bearings of any type (Pedestal/Roller) and refixing the the same after checking complete alignment with base and alliged units complete. (i)Replacement of oil filter (ii) Cleaning/ servicing of all flow lines R22 gas / Water lines completerly (iii) Checking, Repair& Setting all controls,solenoid valves, therr way valves,relays, termostat, humidistat and other relateted equiments/ control for effictve and smooth funtioning (iv) M&L for Charging of Refrigerant Gas (R-22) and compressor oil including repair of leakage observed if any and maintaing requiste test pressure and pressure testing for 08 hours at full load condition to achieve desired condition inside the building to the entire satisfaction of Engg- in - charge (v) Dismentaling and taking out oil saperator vessel completly for cleaning of wire mesh screen, checking of heater, thermostat, regulated controls and calibration , setting of controls to meet reqiusite inside conditions (vi) Dismentaling and taking out filter drier completly for cleaning of wire mesh screen, checking of regulated controls and setting of controls to meet reqiusite cleanness (vi) Tightening the power circuit electrical conections, Control and command connections,correct bthe operation of heaters as per tightening torque table of OEM (vii) Checking/ setting of all operating / funtional /handling parameters for safe and economical operation of plant throuh out the period. Cost for Refrigerant Gas (R-134a) and compressor oil required shall be included under this item.

M&L for servicing of cooling tower suitable for upto 60 TR AC plant through cleaning re-agent complete pipe line, including servicing of cooling tower motor and fan and make the necessary alignment with motor and replacement of bearing of suitable cap after necessory work including gressing and replacement of nut bolts and preventing leakage if any by means of suitable adetives etc all as directed and specified. Note : The cost labour charges for cleaning of PVC Fills and refixing including minor spare parts if any required at the time of repair is deemed to be included in the quoted rates of the job. Replacement of PVC Fills will be paid separately under respective items of BOQ.

M&L for disconnecting electrical connections 7.5 HP motor located at the top of cooling tower,keep cables at safe custody for reconnection and dismantling and taking out fan blade assembly along with motor mounted on base frame at the top of cooling tower after cutting all nuts, bolts and fixtures from the mounting frame and removing whole assembly including motor and base frame from the top of cooling tower with the help of T&P for servicing of cooling tower suitable for 150 TR capcity including following complete for servicing cooling tower plant through cleaning re-agent complete pipe line, including servicing of cooling tower motor and fan and make the necessary alignment with motor and replacement of bearing of suitable cap after necessory work including gressing and replacement of nut bolts and preventing leakage if any by means of suitable adetives etc all as directed and specified.Location :- SH 5&6 AC Plant WED Mankhurd. (a) Cleaning /scrapping of inner& outer surface of FRP basin, repair of damaged portion if any to and for FRP lining of all surfaces joints to avoid leakage including replacement of all nuts and bolts joining all parts of Basin complete (b) cleaning U/s PVC fills(Big size ) in colums of size 60x30x15 cm (c) Cleaning Existing U/s PVC fills(Big size ) in colums of size 60x30x15 cm (d) Replacement of bearings -2 Nos (e) Replacement of protection Guard/ frame for mounting PVC fills fabricated with round bar not less than 10 mm dia completely to the shape of Cooling tower all as per existing and suitable to sustain load of sprilkler assembly and Fills & motor - 2 Nos

-ditto- all as per item No. 4 above but for 15 HP motor complete all as specified and directed.

M&L for Dismantling and servicing of Air handling unit of capacity 12000-13000Cfm, sectionalised construction of capacity 30 TR and reinstalled in same position with correct alignment after cleaning /repairing remove the all rust from shaft by machinery work and rebalancing of shaft including replacement of unserviceable following parts Replacement of pedestal bearings-2 No Replacement of ball bearings-2 No Removing of pulleys from shaft by using T & P for cleaning/grinding/maching of shaft and pulleys maching of grooves/ grasing of all movable parts complete

M&L for servicing and descaling of cooling coil 4-6 Row Deep of capacity 30 TR through cleaning agent and remove the oil and dust from fines and cooper tubes/ pipes complete and checking of copper tubing for leakage of water complete all as directed by engineer in charge

M& L Supply, fabricating and fixing structural mild steel RS joist, channel, angle iron, flat iron and brackets etc for fabrications for cross arms supporting, clamps and back plates, including nuts, bolts and washers, welding to shapes for fabrication of structure to support cooling tower / fondation base to pumps/ compressor/chiller including required nuts, bolts and washers including necessary cutting/ jointing/welding with and including two coats black bituminous paint over a coat of red oxide primer all as required at site

M & L for supply laying connecting and testing of flexible cable 4 runs single core16 sqmm copper conductor laid in trenches in incl;uding clamps of suitable size to fix the cable on wall of trenches and from main panel control panel to chiller unit 30 TR capacity.

M&L for servicing of chiller / condensing pump & remove the all dirt,rust of shaft impellor by machinery work etc and replacement unserviceable bearings of capaicty 20/15 HP and gland packing, studs and nut bolts with bushes etc as required at site all as directed by Engr-in-Charge.