COMPREHENSIVE MAINTENANCE OF AC PLANT 1300 TR CAPACITY INCLUDING ROUTINE MAINT OF SCADA SYSTEM AND VARIOUS SUMMER COOLING APPLIANCES UNDER GE (SB) KARWAR

Amount

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

(d ) 2 to 3 HP

(e) 0.5 to 1 HP

Material and labour for Servicing of water pump split casing type set by removing and dismantling pump and connected pipes and 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 and belt etc including testing for smooth functioning etc of following capacity all as specified and directed.

(a) 20 HP with discharge of 183.9 cum and head 20 Mtrs make : GRUNDFOS

(b) 50 HP with discharge of 183.9 cum and head 54 Mtrs make : GRUNDFOS

(c ) 0.62 HP with discharge of 3.1 cum and head 27.4 Mtrs make : GRUNDFOS

Supply and charge refrigerant (R - 134A) gas as per requirement

(a) Replacement of compressor oil BSE 170 with new compressor oil of

(b) Replacement of compressor oil Grade DB 18 with new compressor oil of

Supply and fix in repairs of crank case heater 300 W all completed as specified and directed.

Labour only for Routine maintenance of AHU with control panel incl. cleaning of blower fan and drain tap, cleaning and 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 thermostat and sensors of complete AHU, checking functioning of heater strips, cleaning of chilled water coil, replacement of broken/worn out connection cable lugs and connectors, replacement of unserviceable electrical accessories in panel complete.

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

Labour only for Routine check of electronic protection module and control panel for compressor, tightening of all loosened electrical connections testing functioning of thermostats, time delay setting and furnishing test report of the same in format approved by Engr-in-charge.

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

All as per Item No. 8 but 240 sq mm 3.5 core

Supply and fix in rep Analogue type Voltmeter of 0 to 500 V range AC

Supply and fix in rep ammeter digital type 0 to 200 Amperes ,CT operated.

Supply and fix only in repairs Water Flow Switch complete all as directed .

Supply and fix pressure gauge 0-150 PSI

Supply and fix pressure gauge 0-300 PSI

Supply and fix in rep Filter drier core for 200 / 300 TR Central AC Plant

Supply and fix V fan belt for AHU of any size

Labour only for Non Comprehensive Routine maintenance checkup of SCADA system which includes inspection of controls and control panels , operational test of controls and control panels , full function tests of equipment incl. checking of Sensors,actuators,temperature/humidity duct sensor, immersion 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 and connectors, replacement of unserviceable electrical accessories in panel complete by authorised service engineer of OEM and furnish the report to Engineer-in-charge.

Supply and fix in repairs 3 way valve with actuator and power supply module of size 40mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 3 way valve with actuator and power supply module of size 50mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 3 way valve with actuator and power supply module of size 65mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 3 way valve with actuator and power supply module of size 80mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 2 way valve with actuator and power supply module of size 80mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 2 way valve with actuator and power supply module of size 40mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 2 way valve with actuator and power supply module of size 25mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs 2 way valve with actuator and power supply module of size 50mm dia completed all as directed by Engr-in charge.

Supply and fix in repairs PLC CPU unit for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs PLC 32 DO card for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs PLC 8 DO card for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs PLC 16 DI card for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs PLC 8 DI card for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs PLC AI card for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Relay 220V AC for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Relay 24 V DC for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Relay card 8 channel for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Relay card 4 channel for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs MCB SP 6 Amp for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs MCB DP 10 Amp for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs 5A SMPS unit for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs 5 port Ethernet switch for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs UVR Relay for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs 12A controller for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs terminal block for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Red illuminated pushbutton for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Green illuminated pushbutton for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Red 220V AC indicator for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Red 24 V DC indicator for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Green 24 V DC indicator for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Yellow 24 V DC indicator for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Blue 24 V DC indicator for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs HMI 7 inches for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs multifunction meter for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Buzzer for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Yellow pushbutton for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs Cooling fan for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs MCB 32Amp TPN for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs 16A SS combination box for controlling the SCADA system completed all as directed and specified by Engr-in- charge.

Supply and fix in repairs suction pressure translators of existing make complete all as specified and directed.

Supply and fix in repairs chilled water temperature sensor of existing make complete all as specified and directed.

Supply and fix in repairs discharge temperature sensor of existing make complete all as specified and directed.

Supply and fix in repairs load unload solenoid coil of existing make complete all as specified and directed.

Supply and fix in repairs controller keypad of existing make complete all as specified and directed.

Supply and fix in repairs MCCB 250 Amps,3 pole, breaking capacity 55 KA, 415 V , all as specified and directed.

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

Supply and fix in repairs of Electronic expansion valves ETS 250 suitable for 200/300 TR unit having refrigerant gas R134a complete all as specified and directed

Supply and fix in repairs Power contactor 2NO + 2 NC , 3TF54 of make siemens of 250 Amps current rating.

Supply and fix in repairs Power contactor 2 NO + 2 NC , 3TS50 3 pole 440 volt ,105 Amps suitable for 55 KW motor of make siemens ,

Pumping down the plant to preserve the existing reorient gas and leak testing of 200/300 TR chiller package unit by charging of Nitrogen gas in to entire plant and 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 vacuum pump to the plant and topping of reorient if required to maintain the standard pressure and testing the plant for smooth functioning complete all as specified and directed.

Supply and fix in repairs UPS of capacity 1000VA/600Watts having back up of 45 minutes suitable for 230 Volts .Make APC Model No. APC BR1000G-IN

Supply and fix in repairs UPS of capacity 700VA/420Watts having back up of 6-90 minutes suitable for 230 Volts .Make APC Model No. APC BE700Y-IN

Supply and fix in repairs 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 and cleaning complete all as directed by Engineer-in-charge.

Material and labour 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 and indication markings all as specified and directed.

Supply and fix in repairs step controller display for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs power supply 12 V for water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs step controller card for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs sensor wire for water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs mini float switch for water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs adapter for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs MNX 22 Contactor for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs thermostat for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs heater Cap 5 KW for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs Auto manual switch for hot water generator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs Contactor BMS with no point for hot water generator complete all as specified and directed by Engineer-in-charge.

Taking down old unserviceable CI butterfly valve of any make and size and Supplying, fixing, testing and commissioning of butterfly Valve(Manual) with C I body SS Disc, Nitrile rubber Seal and 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 200 mm

(b). For size 150 mm

(c). For size 125 mm

Material and labour in repair for Insulation of M S Pipe with PUF slab 40 mm thick with 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

(a) 150 mm dia

Supplying, fixing, testing and commissioning in repair of Balancing Valve with built in measuring facility with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation and 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.

(a) For 200 mm dia

(b) For 150 mm dia

Supply and fix in repairs 1.5sqmm x 6 core armed copper cable 1.1 KV FRLSH complete as specified and as directed.

Supply and fix in repairs 1.5sqmm x 2 core armed copper cable 1.1 KV FRLSH complete as specified and as directed.

Supply and fix in repairs 1.5sqmm x 4 core armed copper cable 1.1 KV FRLSH complete as specified and as directed.

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 directed.

Material and labour for periodical maintenance 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, clearing 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 directed.

Supply and fix in repairs reciprocating / rotary compressor single phase 230 V, 1.5 / 2 Ton capacity for split AC of existing 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 directed.

Supply and fixed 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 and setting with remote unit all as directed.

Supply and fix in repairs overload relay for 1.5 / 2 Ton compressor of Split AC complete all as specified and directed.

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

Supply and fix /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 g of hole in wall and making good surface after laying/fixing pipe etc to matching existing surface.

Supply and fix in repairs PVC air filter for split AC of any capacity.

Material and labour for gas charging with R-134A refrigerant 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 up to satisfactory performance for the following

Supply and fix in repairs fan blade for split AC of any capacity.

Supply and fix in repairs capacitor 45 mfd 230 Volt single phase.

Supply and fix in repairs coil sensor of split AC or package type AC of any capacity all as specified and directed.

Supply and fix in repairs remote control assembly and PC circuit for split type AC of any capacity.

Supply and fix in repairs Voltage stabilizer of 4 KVA suitable for 1.5 / 2.00 Ton split AC.

Supply and fix in repairs MCCB 125 Amps,3 pole, breaking capacity 55 KA, 415 V , all as specified and directed.

Supply and fix in repairs PLC control panel (for each AHU) Vajrakosh Magazine including PLC suitable for HVAC application including SMPS,switchgears and relays etc completed all as directed by Engr-in charge.

Supply and laying OFC cable 6 core in trenches including taking down old cable complete all as directed by Engr in Charge

All as per Item No. 8 but 150 sq mm 3.5 core

cooltech engineering services (BID ID -3515305)

RUHI ASSOCIATES (BID ID -3515306)

Pioneer Enterprises (BID ID -3515149)