MANNING AND OPERATION INCLUDING REPAIR MAINTENANCE OF AC PLANT 1300 TR CAPACITY ROUTINE MAINTENANCE OF SCADA SYSTEM AND VARIOUS SUMMER COOLING APPLIANCES AT INS VAJRAKOSH SITE E UNDER GE SB KARWAR

Amount

SCHEDULE 'A' - PART I (M&O OF AC PLANT)

Manning & operation of central AC plant of total 1300 TR capacity installed at MTP area with package chiller condensing unit for LR-SAM magazines of 900 TR capacity of approved make and BROHMAS magazines of 400 TR capacity of approved make complete including SCADA system of Make : Honeywell with AHU & other accessories each for 24 hrs 3 shifts around the clock run daily for all days in a week including sundays and holidays

a) Air cooled package chiller unit of approved make -03Nos , for LR-SAM magazines. b) Air cooled package chiller unit of approved make - 02Nos , for BROHMAS magazines. c) Compressor of approved make - 6 Nos for LR-SAM d) Compressor of approved make - 4 Nos for BROHMAS e) Condensor fan motor of capacity 3 HP/2.2 KW - 48 Nos for LR-SAM f) Condensor fan motor of capacity 1.5 KW - 32 Nos for BROHMAS g) Primary water pump motor of capacity 15 KW of approved make -03Nos for LR-SAM h) Primary water pump motor of capacity 11 KW of approved make -02Nos for BROHMAS i) Primary water pump of approved make-03Nos for LR-SAM j) Primary water pump of approved make -02Nos for BROHMAS

k) Secondary water pump motor , capacity 37 KW of approved make-03Nos for LR-SAM l) Secondary water pump motor , capacity 37 KW/50 HP of approved make -02Nos for BROHMAS m) Secondary water pump of approved make -03Nos for LR-SAM n) Secondary water pump of approved make -02Nos for BROHMAS o) Air handling unit model ZDHRW-250 of capacity 25000 cmh with blower motor, cooling coil, heater bank, humidity and temperature controller, electric panel complete -19 Nos of approved make for LR-SAM p) Air handling unit model ZDS-80 of capacity 8000 cmh with blower motor, cooling coil, heater bank, humidity and temperature controller, electric panel complete -10 Nos of approved make for BROHMAS q) Hot water generator 2 steps 415 volts of capacity- 12 Nos of 30 KW of approved make for LR-SAM r) Hot water generator 3 steps 415 volts of capacity- 10 Nos of 15 KW of approved make for BROHMAS s) SCADA system of approved make with connected accessories

NOTES:- (a) Contractor has to employ minimum following staff for Manning and operation of the Main receiving Substation at Vajrakosh in all 3 shifts 8 hours each. (i) One No MCM / Supervisor having minimum qualification Diploma in Refrigeration & Air Conditioning Engineering from recognized institute with adequate experience in one shift of 8 hrs (Total - 01 No per day) (ii) One No operator having minimum ITI qualification in Ref Mech trade from Govt recognised institute with minimum 2 years experience in maintenance & operation of AC plants in each shift of 8 hrs (. The operator must be competent to caryout the routine maintenance & check of AC plant including maintenance/check/inspection of electrical panel board.. (Total 03 Nos Per day) (iii) One No Electrician highly skilled / operator having minimum qualification of Diploma in Electrical Engineering from Govt recognized institute with adequate experience in each shift of 08 hours (Total 03 Nos Per day)

(b) Contractor will maintain proper records of all kinds of daily, weekly , monthly, quarterly, half yearly, yearly or whatsoever maintenance is carried out during contract period in a binded book/register and will obtain the signature of Engineer-in-Charge (c ) The operator will ensure general cleanliness and upkeep of the installation on daily basis. (d) Contractor shall maintain log sheet of installations,lodging of complaints if found defects in plants,monitoring of PLC including taking care of chiller plants,monitoring of make up water tanks , pilferage theft or damages etc. (e ) Defective parts of plants will be replaced and measured under respective item of this schedule. (f) Power supply for operating the installations will be made availiable by department free of cost. (g) If the Contractor fails of provide required man power for any of the shift, a panel recovery at the double of the quoted rate per shift shall be recovered from amount due to Contractor. (h) The Contractor shall not employ same tradesman continuously for more than 11 months

SCHEDULE 'A' - PART II (ROUTINE MAINTENANCE OF LRSAM & BROHMAS AC PLANTS INCLUDING SCADA SYSTEM )

M&L for dismantling electric motor of any make, 3 phase 415V of following capacity, opening the motor for rewinding using super enamelled copper wire of suitable gauge to match with the existing winding as per manufacturer design including varnishing & drying and re-assembling the motor, connecting with proper alignment and testing complete including transporting to workshop for rewinding complete all as specified and as directed.

(d ) 2 to 3 HP

(e) 0.5 to 1 HP

M & L for Servicing of water pump split casing type set by removing & dismantling pump and connected pipes & electric connections etc and replacing of unserviceable parts with new gland packing set Gun metal bushes, bearing, water seal packing complete cleaning of impeller greasing etc reassembling and refixing in original position complete with packing and necessary nut & belt etc including testing for smooth functioning etcof following capacity all as specified and as directed

(a) 20 HP with discharge of 183.9 cum and head 20 mtrs

(b) 50 HP with discharge of 183.9 cum and head 54 mtrs

(c ) 0.62 HP with discharge of 3.1 cum and head 27.4 mtrs

Supply & charge refrigerant (R - 134A) gas as per requirement all as specified and as directed

Replacement of compressor oil BSE 170 with new compressor oil all as specified and as directed

Replacement of compressor oil Grade DB 18 with new compressor oil all as specified and as directed

S & F in repair of crank case heater 300 W all as specified and as directed

Labour only for routine maintenance of AHU with control panel including cleaning of blower fan and drain tap,cleaning & servicing of dampers linkages for free operation, adjustment of belt tension/replacement of same,if required cleaning of blower, oiling and greasing of blower motor testing functioning of thermostate and sensors of complete AHU, checking functioning of heater strips, cleaning of chilled water coil, replacement of broken/worn out connection cable lugs & connectors, replacement of unserviceable electrical accessories in panel complete all as specified and as directed

Labour only for routine check up & maintenance of electric power panel, of 1300 TR plant by tightening all incoming/outgoing connections including replacement of blown off electric fuses, defective contactors, indicating neon lamps assembly , indicating meters, checking earthing of panel making fresh connections, settings of overload relays and furnishing the report all as specified and as directed

Labour only for routine check of electronic protection module and control panel for compressor, tighening of all loosened electrical connections testing functioning of thermostats, time delay setting and furnishing test report of the same in format approved all as specified and as directed

Supply laying and testing in cable PVC insulated screened PVC bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with copper conductor 1100 volts grade cross sectional area 50 Sqmm 3.5 core laid on wall / ceiling / duct all as directed including taking down old cable all as specified and as directed

All as per Item No. 11 here in before but 35 sq mm 3.5 core all as specified and as directed

S&F in repairs analogue type voltmeter of 0 to 500 V range AC

S&F in repairs digital type ammeter of 0 to 200 Amperes,CT operated

S&F in repairs Water Flow Switch all as specified and as directed

S&F pressure gauge 0-150 PSI all as specified and as directed

S&F pressure gauge 0-300 PSI all as specified and as directed

S&F in rep Filter drier core for 200 / 300 TR Central AC Plant all as specified and as directed

S&F V fan belt for AHU of any size all as specified and as directed

Labour only for Non Comprehensive Routine maintenance checkup of SCADA system which includes inspection of controls & control panels , operational test of controls & control panels , full function tests of equipment including checking of Sensors, actuators,temperature/ humidity duct sensor, immerson temperature sensors,differential pressure switches, room humidity sensors,electrical wiring ,connections for free operation, adjustment of relays ,sensors /replacement of same , checking functioning of sensors,actuators, cleaning of sensors, actuators , replacement of broken/worn out connection cable lugs & connectors, replacement of unserviceable electrical accessories in panel complete by authorised service engineer of OEM and furnish the report to Engineer-in-charge.

S&F in repairs duct temperature sensor of approved make all as specified and as directed

S&F in repairs Air differential pressure switch sensor of approved make all as specified and as directed

S&F in repairs Combined Room Humidity / Temperature sensor of approved make all as specified and as directed

S&F in repairs DDC controller of approved make all as specified and as directed

S&F in repairs chilled water actuator of size 50 mm complete all as specified and as directed

All as per Item No.25 here in before but of size 100 mm

S&F in repairs hot water actuator of size 40 mm complete all as specified and as directed

S&F in repair discharge pressure translators of existing make complete all as specified and as directed.

S&F in repair suction pressure translators of existing make complete all as specified and as directed.

S&F in repair chilled water temperature sensor of existing make complete all as specified and as directed.

S&F in repair discharge temperature sensor of existing make complete all as specified and as directed.

S&F in repair load unload solenoid coil of existing make complete all as specified and as directed.

S&F in repair controller keypad of existing make complete all as specified and as directed.

S&F in repairs MCCB 250 Amps,3 pole,breaking capacity 55 KA, 415 V , all as specied and as directed.

M & L in repair of Thermostatic Expansion valve TGEN type suitable for 200/300 TR unit having refrigerant gas R134a complete all as specified and as directed

S & F in repair of Electronic expansion valves ETS 250 suitable for 200/300 TR unit having refrigerant gas R134a complete all as specified and as directed

S&F in repair Power contactor 2NO + 2 NC , 3TF54 of make siemens of 250 Amps current rating all as specified and as directed

Supply & Fix in repair Power contactor 2 NO + 2 NC , 3TS50 3 pole 440 volt ,105 Amps suitable for 55 KW motor all as specified and as directed

Pumping down the plant to preserve the existing refrigent gas & leak testing of 200/300 TR chiller package unit by charging of Nitregon gas in to entire plant & monitoring for 24 Hrs to find the leakages, rectification of leak by brazing and replacement of necessary gasket packing as when required including copper tubes of suitable size vacumizing of the plant by vaccum pump to the plant & topping of refrigent if required to maintain the standard pressure and testing the plant for smooth functioning complete all as specified and as directed.

S&F in repairs UPS of capacity 1000VA/600Watts having back up of 45 minutes suitable for 230 Volts of approved make all as specified and as directed.

S&F in repairs UPS of capacity 700VA/420Watts having back up of 6-90 minutes suitable for 230 Volts of approved make all as specified and as directed.

S&F in repair Nitrile insulation layers of size 25 mm thickness sticking on the chiller surface by using approved adhesive and ceiling joint by weather proof tape after removing unserviceable nitrile insulation from the chiller & cleaning all as specified and as directed.

M&L for applying one coat of synthetic enamel paint as per colour code with spray machine on surfaces of 3X300+ 2x200 TR central AC plant comprising of chiller, compressor motor, Pump, water pipe lines etc by filling cavities if any with filler including preparation of surfaces & indication markings all as specified and as directed.

S&F in repair step controller display for hot water generator complete all as specified and as directed

S&F in repair power supply 12 V for water generator complete all as specified and as directed

S&F in repair step controller card for hot water generator complete all as specified and as directed

S&F in repair sensor wire for water generator complete all as specified and as directed

S&F in repair mini float switch for water generator complete all as specified and as directed

S&F in repair adapter for hot water generator complete all as specified and as directed

S&F in repair MNX 22 contactor for hot water generator complete all as specified and as directed

S&F in repair thermostat for hot water generator complete all as specified and as directed

S&F in repair heater cap 5 KW for hot water generator complete all as specified and as directed

S&F in repair auto manual switch for hot water generator complete all as specified and as directed

S&F in repair contactor BMS with no point for hot water generator complete all as specified and as directed

Taking down old unserviceable CI butterfly valve of any make and size and supply,fixing, testing and commissioning of butterfly valve (manual) with CI body SS disc,Nitrile rubber seal & O -ring PN 1.6 pressure rating for chilled water circulation in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately complete all as specified and as directed

(a) For size 300 mm

(b) For size 200 mm

(c ) For size 150 mm

(d ) For size 125 mm

M&L in repair for insulation of MS pipe with PUF slab 40 mm thick width and including applying bituminous compound and GI cladding with 26 gauge GI sheet complete of sizes as shown as per specifications and as required complete all as specified and as directed

Supply,fixing,testing and commisiioning in repair of balancing valve with built in measuring facility with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled water circulation in the chilled / hot water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications complete all as specified and as directed

Supply & Fix in repair Variable Frequency Drive(VFD) for 50 HP /37 KW motor, 380 to 480 Volts , current rating of 72 amps complete all as specified and as directed

Supply & Fix in repair Variable Frequency Drive(VFD) for 20 HP motor complete all as specified and as directed

SCHEDULE 'A' - PART III (ROUTINE MAINTENANCE OF VARIOUS SUMMER COOLING APPLIANCES)

Taking out split type ACs, of any capacity and make installed at various locations, checking the defects including replacement of defective/unserviceable parts except compressor and fan condenser motor/blower motor including refixing in its position/new position and making the equipment functional complete all as specified and as directed.

M&L for periodical maintainance of split AC of 1.5 / 2 Ton capacity including cleaning of overhead ceiling supported indoor unit complete, blower, outdoor unit, wiring system, cool air vent, cleaing including oiling / greasing of movable parts of indoor unit such as motor bearing etc, fresh electrical connections, checking insulation of wiring etc complete, all as specified and as directed.

S&F in repairs reciprocating / rotary compressor single phase 230 V, 1.5 / 2 Ton capacity for split AC of exisiting make suitable for split AC factory tested including taking out old compressor, pumping down refrigerant, bracing and flaring, topping up of refrigerant (labour only) connecting, testing and commissioning the compressor all as specified and as directed.

S&F in repairs, fan motor single phase 240 Volts for in door unit of any capacity for split AC suitable for 1.5 ton existing make ,RPM & setting with remote unit all as specified and as directed.

S&F in repair overload relay for 1.5 / 2 Ton compressor of Split AC complete all as specified and as directed.

S&F in repairs capacitor of 1.5-2 mfd,suitable for indoor unit of split AC plastic body complete all as specified and as directed.

Supply and fixing /lay PVC pipe of size 20 mm dia pipe fixing complete to wall for drain out condensing water of split AC including cutting of floor /opening of hole in wall and making good surface after laying/fixing pipe etc to matching existing surface all as specified and as directed.

S&F in repairs PVC air filter for split AC of any capacity all as specified and as directed.

M&L for gas charging with R-22 referigerant gas of required quantity including all allied work such as vaccumising the complete system, pressure test for detecting any leakage, replacement of flux, flare, nut, dead plug, dead cap, brazing etc including necessary welding work, testing and commissioning upto satisfactory performance for the following all as specified and as directed.

S&F in repairs fan blade for split AC of any capacity all as specified and as directed.

S&F in repairs capacitor 45 mfd 230 Volt single phase all as specified and as directed.

S&F in repairs coil sensor of split AC or package type AC of any capacity all as specified and as directed.

S&F in repairs remote control assembly and PC circuit for split type AC of any capacity all as specified and as directed.

S&F in repairs Voltage stablizer of 4 KVA suitable for 1.5 / 2.00 Ton split AC all as specified and as directed.