ROUTINE MAINTENANCE AND OUTSOURISING OF AC PLANT AT AUDITORIUM AT AF STATION BAMRAULI

Amount

Manning & Operation of 2x50 Ton capacity central AC plant comprising of following equipment installed at auditorium with Skilled category technician/operator [Refrigeration mechanic] possessing minimum ITI pass certificate in relevant trade with three year experience in Single shift of 8 hours each per day including Sunday and Holiday as directed for the following :-. (a) Water cooled scroll chilling units - 2 Nos (ii) Condensers (iii) Pumping Sets (iv) Cooling tower (v) AHU (vi) Electric hot water generator (vii) LT Panel (viii) APFC Panel Notes : (a) The unit rate quoted by the contractor is deemed to be inclusive of cleaning of installations, machinery and upkeep the surroundings of installations, free from unwanted vegetation, complete all as directed by the Engineer-in-Charge(b) Maintaining of plant running records and log-sheets, stationary shall be made available by contractor without any extra cost to the Govt. (c) The contractor shall be solely responsible in case of any accident for the risk involved in the work and nothing shall be paid by the department. (d) Payment to operating staff shall be made by online payment through ECS/NEFT in their bank account. (e) Minor spare parts upto required shall be made available by contractor without any extra cost to the Govt. (f) Cleaning of the area and installation (g) Operation of plant and timings shall be as per the direction by the Engineer In-Charge and it may be the operation of AC plant is required early/late hours beyond the general shift the arrangement of staff shall have to be made by the contractor.

Notes for Item No.1 (Contd....) (h) Wage paid by the contractor to the persons employed shall not be less than the minimum wages fixed by State/Central Government from time to time whichever is higher. The payment shall be made to the workers/operators through a nationalised bank and the bank statement of fair wages as per minimum labour wages as mentioned above shall be submitted along with the RARs/FB for payments. (j) The contractor shall be responsible for the EPF, ESI, bonus, Safety etc. and insurance of all trademen employed by him as per existing Labour Rules/Acts/Regulations.

M&L for preparation of old painted surfaces by scraping down, cleaning and applying two coats of synthetic enamel paint to AC installation central type AC plant (package chiller water cooled) 2x50 TR all as existing colour code including sign/letters 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 complete all as specified and directed. 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. Make of paint & primer :- Berger/Asiain/Nerolac

M&L for overhauling and 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 complete overhauling and servicing of AHUs Make ZECO capacity 15000 cfm and carry out of following tasks once in three months minimum and records be maintained complete all as specified and directed. Notes : (i) Open fan section cover AHU; check belts for wear and tear. Replace if necessary, check bearings and alignment of belt drive. Refix 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 necessary (vi) Carry out chemical cleaning AHU coils. (vii)The air handling unit filters shall be inspected and cleaned regularly.

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

M&L for Isolating the shell and tube of condenser from water pipe line and de-scaling by circulating of concentrated solution of chemical de-scaler 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 for the following :- Note :- De-scaling solution will be measured and paid separately as supply only under respective item of this schedule.

M&L for complete overhauling & servicing of 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, display unit, wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate complete all as specified and directed. Note:- Contractor is responsible to attend break down immediately for above throughout the contract period.

M&L for complete overhauling of hot water generator (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, display unit, wiring fault etc are found defective the same shall have to be repaired/replaced by contractor in quoted rate complete all as specified and directed. Note:- Contractor is responsible to attend break down immediately for above through out the contract period.

S&F in replacement of Ammeter, digital type, size 95x95x36mm, 14 mm LED display, 3 Ph 3W/4W net work, accuracy class 1, 4 digit complete all as specified and directed. Make : AE/Enercon

S&F in replacement of Thermal over load relay range 0-10 amps as suitable complete all as specified and directed. Make : L&T/Legrand/ Siemens/ABB/Schneider

S&F in replacement of Single phase preventer & dry run protection relay (Current based) as per sample with system supply 415 V AC 50 Hz complete all as specified and directed. Make : L&T Cat Part No. CS90862DOOO (or) equivalent model in ABB/Legrand/Seimens

S&F in replacement of Volt meter digital type, size 95x95x36mm, 14 mm LED display, 3 Ph 3W/4W net work, accuracy class 1, 4 digit complete all as specified and directed. Make : AE/Enercon

S&F in replacement of V Belt as per existing model complete all as specified and directed.

S&F replacement of Sensor for cutt off switch as per existing model complete all as specified and directed.

Supply only chemical de-scaler solution(have PH value less than 2.0 at 100% concentration) for cleaning of condensers complete all as specified and directed.

Supply and filling Non Freezing polyester lubricant oil (POE-160PZ) to top up the scroll compressor complete all as specified and directed. Make : Danfoss/Totaline/Maneurop

Supply only refrigerant gas R-407 in sealed gas cylinder complete all as specified and directed.

S&F in replacement of water flow switch as per existing model complete all as specified and directed.

S&F in replacement of Thermostatic expansion valves as per existing model complete all as specified and directed.

S&F in replacement of Y strainer of cooling tower as per existing model complete all as specified and directed.

S&F in replacement of strainer filter for hot and cold pipe lines as per existing model complete all as specified and directed.

S&F in replacement of dry type cleanable and easily maintainable AHUs air filter supported by GI wire as per existing sample of air handling unit complete all as directed.

S&F in replacement of ML-3 power contactor 3 phase complete all as specified and directed.Make : L&T/Legrand/ Siemens/ABB/Schneider

S&F 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 will be measured and paid separately as supply only under respective item of this schedule.

S&F in replacement of Heat exchange PVC fills honeycomb type of size 600X300X150 mm or nearest higher size for cooling tower of AC Plant complete all as specified and directed.

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 unserviceable spares parts, 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 : Kirloskar/Upadhaya/Zoloto/Leader

S&F in replacement of round flanged type heater U tube shaped 3 KW 240 volts, single phase 50 HZ complete all as specified and directed. Make: Danfoss/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 meter 6 inch long for condenser suction and discharge as per existing model complete all as specified and directed.

Supply only Ball bearing suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed.

Supply only fan cover suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed.

Supply only impeller suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed.

Supply only Delivery casing suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed.

Supply only shaft ring suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed.

Supply only gland suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed

Supply only Bush suitable for mono-block pump of capacity 5 HP to 7.5 HP as per existing model complete all as specified and directed

S&F in repairs worn out shaft of mono-block pumps by welding or lathe mashing or as required to remove the bearing endplay complete all as specified and directed.

S&F in replacement of MCCB, 4 Pole, 100 Amps, , 25 KA, 415 voltsgrade complete with sheet metal enclosure and connecting with controller panel complete all as specified and directed.Make : L&T/Legrand/ Siemens/ABB/Schneider

S&F in replacement of MCCB, 4 Pole, 63 Amps, 16/25 KA, 415 volts grade complete with sheet metal enclosure and connecting with controller panel complete all as specified and directed. Make : L&T/Legrand/ Siemens/ABB/Schneider

S&F in replacement MCB, TP, 63 Amps, 240 volts grade complete with controller panel complete all as specified and directed. Make : L&T/Legrand/ Siemens/ABB/Schneider

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

M&L for insulation of duct with 25mm thick thermo-coal, 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 complete all as specified and directed.

S&F in replacement MCCB 4 pole, 250 Amps, 35 KA 415 volts grade complete with sheet metal enclosure and connecting with controller panel complete all as specified and directed.Make : L&T/Legrand/ Siemens/ABB/Schneider

S&F cable PVC insulated galvanised steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with standard copper conductor of nominal dia 50 Sqmm 3 core including taking down old unserviceable cable complete all as specified and directed. Make : Havells/Finolex/Universal/Gloster

Note :- Credit shown in credit schedule of tender document shall be considered by the tenderer while quoting the rates of various items. The same shall be recovered from various payment to contractor before handing over old material.

BRITE INDUSTRIES

bharat construction

M/S SS Tarders

M/s Hanspal Enterprises