ANNUAL COMPREHENSIVE MAINTENANCE OF 5 AC SHEDS AT AFS AMLA

Amount

Comprehensive and annual maintenance of Central AC Plant water cooled type capacity 3 x 265 TR (2 x working + 1 Standby) water cooled screw chiller alongwith all connected low side equipments and control panel including replenishment of refrigerant gas and carrying out all preventive maintenance as per standard practice four times in a year with scope of work as under for complete serviceablity of whole AC plant unit throught out the year all as specified and directed. Note : Service Engineers of the OEM shall make quaterly preventive maintenance visits and shall submit their report which shall be assessed by GE and corrective actions, if any, shall be notified in one go (no piecemeal notifications) to the contractor. If the contractor fails to adhere, a penalty of Rs. 5,000 /- shall be levied. Details of plants/equipments/machinery at Central AC Plant of 5 AC sheds are as under: (a) Water Cooler Screw Chiller Unit 265 TR, Model: VLWHX270SNAUM2BQER Make: Voltas - 03 Nos. (b) Vertical Electrical Hot Water Generator 270 KW with LT Panel Make: Emeralds Airtech - 2 Nos. (c) Cooling Tower 600 TR Make: Bell - 1 No. (d) Primary Chilled Water Pump set 676 GPM with VFD Make: Armstrong - 03 Nos. (e) Secondary Chilled Water Pump set 249 GPM with VFD Make: Armstrong - 05 Sheds x 02= 10 Nos. (f) Primary Hot Water Pump set 410 GPM with VFD Make: Armstrong - 02 Nos. (g) Secondary Hot Water Pump set 71 GPM with VFD Make: Armstrong - 05 Sheds x 02= 10 Nos. (h) Condenser Water Pump set 814 GPM with VFD Make: Armstrong - 03 Nos. (j) AHU air qty 31450 CFM Make: Euroclima - 3 Nos. (k) AHU air qty 30970 CFM Make: Euroclima - 2 Nos.

SCOPE OF WORK FOR CHILLERS (i) Carrying out quarterly inspection of equipments listed above as a part of preventive maintenance (PM) in accordance with relevant PM check list and as per schedule :- (a) Checking the Central AC or refrigeration system and equipment such as compressor and their electrical control on the respective equipments. (b) Checking the refrigeration system for any leaks. (c) Checking the electrical and refrigeration control system for operation and adjustments of set values as necessary. (d) Lubrication of all necessary points in the system and its components in line with the checklist. (e) Changing of unserviceable parts (not whole as chiller, control panel, reciprocating compressors, screw compressors, centrifugal compressors, motors) or repairing or re-calibration as may be necessary in case of motors and compressors.

(ii) Carrying out once in a year, chemical (tube brushing) de-scaling of water-cooled condensers. (iii) Carrying out if, found necessary, chemical (tube brushing) de-scaling of evaporator. (iv) Carrying out once in a year, testing of lubricant and water (chilled water system and water cooled condensing systems only) samples. Lubricants shall be changed as per schedule prescribed in the maintenance manual of the equipment concerned or if the sample indicates un-acceptable quality. Quality limits are as per prescriptions by the equipment or lubricant manufacturers, whichever is higher. (v) Attending to breakdown calls. (a) Parts and consumables shall be provided free of charge. (b) Attending to the plant immediately when called upon and attending to complaint / breakdown calls whenever required. (c) Contractor shall depute qualified experienced team for comprehensive annual maintenance to the satisfaction of Garrison Engineer. If, any defects arise or serviceability of chiller plant is affected in between the periodicity of checking, contractor shall depute his team immediately for rectification on intimation. If, contractor fails to send his team for rectification action, a penalty of Rs.1000/- per day for delay beyond 72 hrs of intimation by Engineer-in-Charge and maximum upto 1 % of Total contract value shall be imposed.

SCOPE OF WORK FOR PUMPS (i) Four Preventive Maintenance Services as per schedule & prescribed check list including alignment of pump and motor, greasing of bearings, leaking of glands, tightening of motor terminals. (ii) Attending of the complaints as & when required. (iii) Replacement of switchgears as & when required. (iv) Supply and replacement of gland packing as & when required. (v) Replacement of mechanical seal & replacement of bearing as & when required. (vi) Supply and replacement of rubber coupler as & when required. SCOPE OF WORK FOR COOLING TOWERS (i) Four Preventive Maintenance Services as per schedule & prescribed check list including motor, greasing of bearings, tightening of motor terminals, cleaning of cooling tower fins. (ii) Attending of the complaints as & when required. SCOPE OF WORK FOR AHU (i) Four Preventive Maintenance Services as per schedule & prescribed check list including AHU motor, water wash of cooling coils, greasing of bearings, tightening of motor terminals. (ii) Attending of the complaints as & when required. (iii) Annual cleaning of cooling coils using approved chemical as & when required. Chemical cleaning will not be done when manual brushing of AHU coils will suffice. (iv) Cleaning of drain pans and drain piping (v) Supply and replacement of bearing & belts. (vi) Cleaning of AHU filters and pre-filters. (vii) Replacement of control transformers and timers

Note: The following spare parts of Chiller unit shall be covered in comprehensive AMC and shall be replaced when required without any extra cost along with minor parts such as MCB SP/SPN/TP/TPN, Fuse Holder, Fuse Cartridge, Film Capacitor of suitable size/capacity and cost of same shall deemed to be included in rate quoted:-. (a) Chiller controller DB5+ medium (b) Graphic Display Panel Mounted No. PGDE000F00 (c) Serial Card Board RS485 No. PCOSOO4850 (d) EEV Control Board No. EVDOOOOE50EE (e) Pressure Trasmitter 0/200-500 PSI, 4-20mA, No. 520.99260 (f) EVD Display Board No. EVDIS00EN0 (g) Temp Sensor Probe 6mtr No. NTC060WH01 (h) Electronic Expansion Valve 1-5/8" No. E6VB2ASV00 (i) Connector Assembly 6mtr No. E2V CAB S600 (j) Fan Filter Set 148.5mm,110 V No. FKL6622.115 (k) Solenoid Valve 5/8",110 VAC No. HV15M5T (l) Oil Flow Switch No. FSF20W-7/8 (m) Contactor 110 V No. 3TS-85A/170A (n) Timer Relay 10S/110VAC No. AH3-1 (o) EM Relay 110/240 VAC 8 Pins (p) CT 200-250/5 A, 15VA (q) CT 115-24 VAC, 50/150 VA (r) CT 380/400/415-115 V, 0.5 KVA (s) Overload Relay 40-200A No. 193-EEJZ (t) 3 Phase Voltage Monitor Relay No. 460L (u) Relay Socket No. PF083A-E (v) Filter Drier 5/8" No. DML165s (023Z5068) (w) AC Current Transducer 5A/0-20mA No. RPAS-A2-O2

Annual maintenance of Building Management System Panel of central AC Plant capacity 3 x 265 TR along with AHU control panel and carrying out all preventive maintenance as per standard practice with scope of work as under for complete full proof automation of whole AC plant unit by visiting BMS Engineer/Expert PLC Software Engineer at site as and when required complete all as specified and directed.

(i) PLC-cum-VFD-cum-MCC Automation Panel for AHU Make: Siemens/Invotec - 05 Nos. (ii) Chiller Load Manager-cum-Central Monitoring Panel Make: Siemens/Invotec - 01 No. (iii) Fiber Optic Managed Network Panels - 06 Nos. (iv) Immersion Temperature Sensor, Outdoor Temp & RH Sensor with Radiation Shield, Flame Proof Air Flow (Velocity) Sensor, Flame Proof Differential Pressure Switch. SCOPE OF WORK FOR BMS (i) Checking the BMS system. (ii) Minor maintenance of BMS system (iii) Attend the Breakdown calls of BMS system if, required and submit report. (iv) Any type of replacement/ modification work of BMS like sensor, transducer, hardware, software or any major breakdown required are not covered in this. (v) Maintenance of existing software of the system & reviving the same in case of system crash.

Material and labour for cleaning of Cooling Tower 600 TR capacity by suitable cleaning agent/ acid/HCL with suitable brush and clean all the sludge and scale deposited in body of cooling tower, fins and tank along with pipe line connected to the cooling tower complete all as specified and directed.

Supply and Fix flanged type immersion heater coil/element 25 KW, 3 phase, 415 volts alongwith gasket for Hot Water Generator capacity 270 KW of existing size/type/make complete all as specified and directed.

Material and labour for cleaning/ descaling of floor mounted steel hot water mixing tank of storage capacity 20000 ltrs by team of specialized technicians for executing the job with suitable cleaning agent complete all as specified and directed. Note: Cost of all materials for cleaning, labour and T&P shall deemed to be included rate.

Material and labour for cleaning and descaling of vertical vessel hot water generator tank of storage capacity 200 Liters (approx) including descaling of 11 Nos. heater coils by team of specialized technicians for executing the job with suitable cleaning agent complete all as specified and directed. Note: Cost of all materials for cleaning, labour and Tools and Plants shall deemed to be included in the rate quoted.

Supply and Fix in replacement Variable Frequency Drive (VFD) rated power range 1.5 to 10 HP, 3 Phase 380 V-480 V AC, digital display, 50 Hz - 60 Hz, RFI Class A2(C3) for motor of cooling tower pump, chilled water pump, hot water pump including taking down unserviceable VFD complete all as specified and directed. Note: The job shall be carried out as and when required, for repair of existing VFD or for additional VFD required for maintaining the performance of the AC Plants. Make: Armstrong IVS102 or equivalent in Siemens/ABB

Supply and Fix in repair SMPS DIN rain mounted, single phase with built in transient protector & EMI filter, protection against short circuit, overload & overvoltage, input 230 VAC, 1.5 Amp, output 24 VDC, 5.0 Amp Make: Shavison Model: G31-120-24 in BMS panel/AHU panel of AC plant complete all as specified and directed.

Supply and Fix HRC fuse link rated current 125 A, 415 Volts, breaking capacity 100 kA, DIN type, HN SIZE 00 complete all as specified and directed. Make : L&T/Siemens/ABB/Schneider

Supply and Fix in repair power contactor, 3 pole, AC-3, rating current 80 Amps, 1NO+1NC complete all as specified and directed. Make : Schneider Cat Part No. LC1E80 or equivalent in L&T/Siemens/ABB

Supply and Fix in repair power contactor, AC-3e/AC-3, 7 A, 3 kW/ 400 Volts, 3 pole, 230 V AC, 50/60 Hz, auxiliary contacts 1 NO, screw terminal, size S00 complete all as specified and directed. Make : Siemens Cat Part No. 3RT2015-1AP01 or equivalent in L&T/Schneider/ABB

Supply and Fix in repair control relay 2NO+2NC, 220V AC coil, 3 Pole wire connector complete all as specified and directed. Make: Schneider Cat Part No. CA2KN22M7 K or equivalent in L&T/Siemens/ABB

Supply and Fix in repair 4 digit universal dual bright display advance PID temperature controller, panel mounting type complete all as specified and directed. Make: Selec Cat Part No. PID500U or equivalent in L&T/Siemens/ABB

Material and labour for taking down and strip opening of induction motor and taking old burnt out copper winding, insulation material, cleaning the slots and rewinding of motor by providing high quality of class 'B' paper insulation inside the slots, rewinding with super enameled copper wire of existing size and gauge, wrapping up with high quality cotton tape and varnishing with super quality oil including drying up to desired temperature and desired time including replacement of Bakelite terminal testing on completion complete all as specified and directed for the following capacity :-

Capacity 3 to 5 HP, 3 phase, 415 Volts 50 Hz

Capacity 10 HP, 3 Phase, 415 Volts 50 Hz

Capacity 20 HP, 3 Phase, 415 Volts 50 Hz

Note:- The amount of schedule of credit on page No. 34 shall be deducted from the amount quoted against sch 'A' while deriving at the contract sum for acceptance.

M/s Vinod Yadav (BID ID -3381552)

M/S SHARADA ASOCIATE (BID ID -3381275)

Bidder Name

Shri Sai Enterprises

M/S SHARADA ASOCIATE

M/s Vinod Yadav