ROUTINE MAINTENANCE OF AC PLANT AT AUDITORIUM AND VRF AT AF STATION BAMRAULI.

Amount

M&L for preparation of old painted surfaces by scraping down, cleaning and applying two coat of synthetic enamel paint to AC installation central type AC plant (package chiller water cooled) 2x50 TR all as existing colour code including sign writing as directed (AC installation comprising of compressors,mono block pumps & motors, condensers, pipe line, hot and cold pipe lines, cooling tower,AHUs, and display board) including marking direction of flow and writing SM / MES Nos of size not less than 25mm with black paint . Note : (i) Due care shall be taken to avoid paint sprinkles on glass parts, floor, air filter etc loose parts to be removed and re-fitted after cleaning (ii) Cleaning all paint sprinkles and marks shall be the responsibility of contractor.

Servicing and Overhauling of VRF type Air Conditioners of capacity 4.0 to 12.0 HP makeBlue Star/Carrior/Eqrivalent make and carry including overhauling of connected indoor unit of various capacity 1.5 Ton/2.0 Ton/3.0 Ton complete including the following :- (a) Inspection taking down, opening (dismantling) ,washing the condensor and cooling coil complete with water by fixing indoor pvc jacket as required and cleaning with air blower and testing complete (b) Checking / examine operation of condensor, blower motor, cooling coil and checking the air circulation to ensure complete movement of working part trouble free (c) Inspection of leakage in system and removal obstruction if any (d) Inspecting all electrical connection and remove if any defects (e) Top up Refrigerent gas if required including replacement of minor parts capacitor /relay/fuse/connector/thimbles/Sensor/transformer etc complete all as specified.

Servicing and Overhauling of VRF type Air Conditioners of capacity 14.0 to 24.0 HP makeBlue Star/Carrior/Eqrivalent make and carry including overhauling of connected indoor unit of various capacity 1.5 Ton/2.0 Ton/3.0 Ton complete including the following :- (a) Inspection taking down, opening (dismantling) ,washing the condensor and cooling coil complete with water by fixing indoor pvc jacket as required and cleaning with air blower and testing complete (b) Checking / examine operation of condensor, blower motor, cooling coil and checking the air circulation to ensure complete movement of working part trouble free (c) Inspection of leakage in system and removal obstruction if any (d) Inspecting all electrical connection and remove if any defects (e) Top up Refrigerent gas if required.including replacement of minor parts capacitor /relay/fuse/connector/thimbles/Sensor/transformer etc.

Servicing and Overhauling of VRF type Air Conditioners of capacity 28.0 to 30.0 HP makeBlue Star/Carrior/Eqrivalent make and carry including overhauling of connected indoor unit of various capacity 1.5 Ton/2.0 Ton/3.0 Ton complete including the following :- (a) Inspection taking down, opening (dismantling) ,washing the condensor and cooling coil complete with water by fixing indoor pvc jacket as required and cleaning with air blower and testing complete (b) Checking / examine operation of condensor, blower motor, cooling coil and checking the air circulation to ensure complete movement of working part trouble free (c) Inspection of leakage in system and removal obstruction if any (d) Inspecting all electrical connection and remove if any defects (e) Top up Refrigerent gas if required.including replacement of minor parts capacitor /relay/fuse/connector/thimbles/Sensor/transformer et complete all as specified by Engr-in-Charge.

Supply and fixing VRF Outdoor unit PCB suitable make :-Caarrier/Bluestar complete all as specified and directed

Supply and fixing in replacement of VRF outdoor unit Noise Filter complete all as specified and directed

Supply and fixing in replacement of VRF outdoor unit capacitor PCB Complete all as specified and directed

Supply and fixing in replacement of Indoor Main PCB complete all as specified and directed

Supply and fixing in replacement of Compressor range 24-30 HP as suitable complete all as specified and directed.

Supply and fixig in replacement of of Refrigerant Gas R410 complete all as specified and directed.

Supply and fixing in replacement of Outdoor BLDC Motor as suitable size complete all as specified and diected.

Supply and fixing in replacement of indoor unit motor as suitable type complete all as specified and directed.

Supply and fixing in replacement of outdoor LP switch as suitable size complete all as specified and directed.

Supply and fixing in replacement of outdoor HP switches suitable size complete all as specified and directed.

Supply and fixing in replacement of outdoor expansion value as suitable size complete all as specified and directed.

Supply and fixing in replacement of indoor expansion value as suitable size complete all as specified and directed.

Supply and fixing in replacement of indoor power board as suitable size complete all as specified and directed.

Supply and fixing in replacement of outdoor sensor Set as suitable size complete all as specified and directed.

Supply and fixing in replacement of outdoor fan blade as suitable size complete all as specified and directed.

Supply and fixing in replacement of indoor fan blade as suitable size complete all as specified and directed.

Supply and fixing in replacement of outdoor power card as suitable size complete all as specified and directed.

Supply and fixing of indoor gas sensor as suitable size complete all as specified and directed.

Supply and fixing of indoor room sensor as suitable size complete all as specified and directed.

Supply and fixing of indoor liquid sensor as suitable size complete all as specified and directed.

M&L for Servicing of FRP cooling tower of central type AC plant including, cleaning of inside of heads, pipe, nozzles, greasing/oiling of cooling tower motor with fan , cleaning inside tank etc and Cooling tower sprinklers, pipes, etc. shall be inspected and attended for proper spray and repair/replacement shall be done for which nothing extra be paid complete all as specified and directed.

M&L for overhauling & servicing of AHUs Make ZECO capacity 15000 cfm and carry out of following tasks once in three months minimum and records be maintained.: (i) Open fan section cover AHU; check belts for wear and tear. Replace if necessary, check bearings and alignment of belt drive. Refit the fan section.(ii)Inspect cables for loose/loaded terminal, rectify if necessary. (iii). Checking the system for leaks and then rectifying leaks, if any.(iv)Check AHU motor mounts for undue vibrations. Replace mounts if necessary.(v) Lubricating/greasing the bearings of blower motor and replace bearing or bush if neccessary (vi) Carry out chemical cleaning AHU coils. (vii)The air handling unit filters shall be inspected and cleaned regularly.

M&L for overhauling and servicing of monoblock pump set of 5.0 or 7.5 HP capacity make kirloskar and carry out the following tasks all as specified and directed. (i). Disassemble the pump.(ii). Inspect it.(iii) Replace worn parts. (iv) checking water seal Note: Replacement of old bearing / bush and water seal complete as per existing are paid sepratily in Sch.

M&L for Isolating the shell and tube of condenser from water pipe line and de-scaling by circulating of concentrated solution of chemical descaler through condensers unit opening of headers and pouring acid inside tubes, cleaning by nylon brush form both side and removing complete scale from tubes and headers with proper care checking of leakage, replacement of headers gasket of both side connecting, testing including leakage detection in shell or tube condenser if any and rectification to be carried out with proper testing all as specified and directed by Engineer-in-Charge for the following :- Note : De-scaling solution shall be measured and paid separately as supply only under respective item of this sch.

M&L for servicing of Water Cooled Scroll Chiller units (Make: Bluestar & Model: XWCS4052AR2 ) with Micro Processor based control panel the same shall be checked regularly for its satisfactory operation and if any electronic parts like PCB,displayunit,wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate.Note:contractor is rsponsible to attend break down immediately for above through out the contract period.

M&L for servicing of hot water genrator (Make : Rapid cool and Model :RC-544) with control panel the same shall be checked regularly for its satisfactory operation and if any electronic parts like PCB,displayunit,wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate.Note:contractor is rsponsible to attend break down immediately for above through out the contract period.

Supply and fixing in replacement of Ammeter size 95mm digital type accuracy class 1.Make:AE / Enercon/L&T

Supply and fixing in replacement of Thermal over load relay range 0-10 amp .Make L&T or equivalent in Legrand

Supply and fixing in replacement of Single phase preventer as per sample with system supply 415 V AC 50 Hz make : Minilac/ L&T or equivalent in Legrand

Supply and fixing in replacement of Volt meter size 95mm digital type accuracy class 1 Make:AE / Enercon.

Supply and fixing in replacement of V Belt as per sample

Supply and fixing in replacement of Sensor for cutt off switch

Supply only chemical descaler solution(have PH value less than 2.0 at 100% concentration) for cleaning of condensers.

Supply and filling Non Freezing polyolester lubricant oil(POE-160PZ) to top up the scroll compressor . Make :Denfoss/TOTALINE/MANEUROP)

Supply only Refrigerant gas R-407 in sealed gas cylinder.

Supply and fixing in replacement of water flow switch as per existing model.

Supply and fixing in replacement of Thermostatic expansion valves as per existing model of temperature 00 F to 1200 F.

S& F in replacement of Y strainer of cooling tower as per existing sample DN 15 say 3/2"

Supply and fixing in replacement of strainer filter for hot and cold pipe lines as per existing model.

Supply and fixing in replacement of dry type cleanable and easily maintainable AHUS air filter suported by GI wire as per existing sample of air handling unitcomplete all as directed by eng in charge.

Supply and fixing in replacement of ML-3 power contactor 3 phase 50 H2, 25 Amp Complete Make L&T / Legrand or equivalent

Supply and fixing in replacement of scroll compressor unit of Make: Danfoss and Model: SZ185S4RC including compressor oil of 12.5 TR capacity by cutting of suction and discharge lines, unscrewing the foundation nuts & bolts etc, supply and fixing of new scroll compressor unit of suitable make as existing by connecting suction and discharge lines with filling of refrigerant gas including welding/brazing work and tightening foundation nuts & bolts etc all as specified and directed.Note:- Refrigerant gas shall be measured and paid separately as supply only under respective item of this sch.

Supply and fixing in replacement of HEAT EXCHANGE PVC fills HONYCOMB TYPE OF SIZE 600X300X150 MM or nearest higher size for cooling tower of AC Plant.

M&L for rewinding of electric motor of AHUs/cooling tower /mono block pump any make 3 phase, 415V, 7.5 or 5 HP with PVC insulated heavy duty superior quality copper winding wires of suitable gauge/size matching to existing, straightening and replacement of U/s spares, cleaning of stator slots properly by using adequate size of sand paper including insulating materials complete all as specified and directed.

Supply, fixing, jointing and testing 80 mm dia cast iron butter fly valve (ISI MARKED) flanged type complete all as specified and directed. Make :- Bir/Leader/ Kerloskar in replacement of Schedule of credit.

S&F in replacement of round flanged type heater U tube shaped 6 KW 240 volts, single phase 50 HZ complete all as specified and directed.Make: Daspass/Bajaj/Theeta.

S&F in replacement of water pressure gauge at suction and discharge side of pump in 4 inch round shape (0-100) LB/IN C2 with U or S shaped steel tube of 12mm dia approx length of 300 with pressure regulator valve brass connected with union reducer to the water supply line by making hole and welding and testing complete all as specified and directed.

S&F temperature in replacement of meter 6 inch long for condenser suction and discharge as per existing model.

Supply only the following spare parts suitable for monoblock pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified.

Ball bearing

Fan cover

Impeller

Delivery casing

Saft ring

Gland

Rotor with Shaft

Stator

M&L for reapir of worn out shaft of monoblock pumps by welding or lathe maching or as required to remove the bearing endplay all as specified and directed by eng in charge

S&F in replacement MCB TP , 32-40 Amps, , 10 KA ,C curve 240 volt grade complete with controller panel all as specified. Make Legrand or equivalent

S & F in replacement of 80 mm thick puff slab with aluminium sheets (Polyurathene foam with 1.2 mm thick aluminium chequred sheet) for floor insulation of cold room complete all as specified and directed.Make:- Awantika / blue star / Carrier / Ahata.

M&L for insulation of duct with 25mm thick thermocol, painting with black Japan paint, between GI wire mesh net including covering with aluminium sheet as per sample and making good as per existing complete with covering of all as directed by Engineer-in-charge.

Avion Industries (BID ID -3104562)

M/S vibhuti enterprises (BID ID -3119719)