03/CIMD-II/BTPS/T-3/2021-22

Amount

PART-A (OPERATION / RUNNING / PREVENTIVE MAINTENANCE WORKS OF DIFFERENT AC PACKAGES UNDER BTPS EXCEPT COAL HANDLING AREA)

Round the clock operation, keeping records of relevant parameters and taking precautionary measures as per schedules of supplier for continuous running of 'DAIKIN' JAPAN make VFD type and Reciprocal type central Air Conditioning package and related equipment’s installed at 21 Meters and other locations on T/G floor area of 'B' Thermal Power Station.

Round the clock operation, keeping records of relevant parameters and taking precautionary measures as per schedules of supplier for continuous running of ‘DAIKIN’JAPAN and other make water cooled/Air cooled, Tower AC, SPLIT Type, package air conditioners and related equipment’s installed at Different locations as WTP, Coal lab, ESP, ASP House, DFA control room, Excitation room 4&5 & Compressor House of "B" Thermal Power Station.

Preventive and running \ routine maintenance jobs which includes cleaning of air filter, greasing of bearing, adjusting tension of v-belt, checking vibration, alignment of pumps, cleaning of work area, oil and gas (Refrigerant) charging in the event of leakages or non-performance of air conditioning system and all other necessary preventive maintenance work as mentioned in scope of work annexure-II to keep the AC system in smooth working condition. The details of equipment installed locations are as mentioned below:

a. Main plant AC and associated AHU, FCU installed at 21 mtrs,7 mtrs, 0 mtr,

b. Air Package AC (Blue star) at simulator building

c. Water cooled package AC at service building, electrical workshop and soil test lab(Coal Lab)

d. water cooled package AC at WTP & Ash slurry pump house

e. Tower AC at ESP4&5, Excitation room # 4&5

f. split AC at GM & SE's room in service building &other BTPS Area

g. Air cooled AC at CPP, HT switch gear

h. split AC at air compressor house, Fire pump house

i. split AC at Telephone exchange and dry fly ash control room

j. split AC at SPMS &other BTPS Area

PART-B (Breakdown Maintinence)

Complete repair / overhauling to make it properly functional except motor winding of semi-hermetically sealed 37 KW compressor of water cooled chiller central air conditioning system installed at +21M T/G floor (Water cooled chiller package).

Complete repair / overhauling of hermetically sealed compressor units of air conditioning package of following types

(a) Water cooled type (1) 13.4 KW

Water cooled type (2) 7.5 KW

Water cooled type (3) 5.5 KW

(b) Air cooled type(old) &Tower AC (including new Installation)

(c) Split type AC(including new Installation)

Supply & charging /installation

(a) R-134a Gas per Kg.

(b)R-410a Gas per Kg.

(c)R-407c Gas per Kg.

(d) R-22 Gas per Kg.

(e) Nitrogen Gas per Meter Cube

Repair \ Overhauling of centrifugal pump installed with water cooled air conditioning package and central air conditioning package. The work involves dismantling of old & new pumps, alignment of pump with motor and other work like impeller repair, replacement of bearing etc. and then installation at site.

Repair \ Overhauling of air blowers of air handling units. The work includes dynamic balancing of blower fan, replacement of bearings repair of shaft and other associated work.

Overhauling of Cooling Tower : Work involve complete dismantling of old/New Fans, Motors, Fan guard, Spraying pan, Fins, Minor repair of structure, Replacement of bearings, Overhauling and Varnishing of motor & painting of structure etc. Reinstallation of the same insuring trouble free operation.

Rewinding of motor used in cooling tower fans, indoor and outdoor unit fans & other motors pertaining to various air conditioning packages & water coolers as per details given below. The work involves dismantling old/new motor, fan, packages/ coolers carrying away to the work place rewinding testing reinstallation with proper alignment and ensuring its continuous trouble free operation for 72 Hours. Along with guarantee for six months

(a) 37 KW, 3 0, 415 V, 50 Hz

(b)10 KW to 30 KW, 3 0, 415 V, 50 Hz

(c)5.5 KW, to 7.5 KW, 3 0, 415 V, 50 Hz

(d)) 2.2 KW to 3.7 KW, 3 0, 415 V, 50 Hz

(e) 0.75 KW to 1.5 KW, 3 0, 415 V, 50 Hz

Complete overhauling of motors used in cooling tower fans indoor/outdoor unit fans and other motors pertaining to various air conditioning packages (old/New). The work involves dismantling and overhauling (old /new) of motors varnishing of windings, re-installation with proper alignment and ensuring it’s continue trouble free operations for 72 hrs. Along with Guarantee for six months.

(a) 30 KW, 3 0, 50 Hz, 415 V

(b)7.5 KW to 15 KW, 3 0, 50 Hz, 415 V

(c)3.7 KW, to 7.5 KW, 3 0, 50 Hz, 415 V

(d) 2.2 KW, 3 0, 50 Hz, 415 V

(e) 0.75 KW to1.5 KW, 3 0, 50 Hz, 415 V

Break down maintenance of Water coolers installed at various places of BTPS

Repairing of Thermostat switches of water coolers

Repairing of water faucet of water cooler.

Repairing of piping

Repairing of filter

Repairing of valve

Repairing of compressor.

Replacement of compressor.

Replacement of Thermostat switches of water coolers

Replacement of water faucet

Replacement of Over load relay, if require

Removal of fan jamming, greasing of bearing of fan and other moving parts.

Attending gas leakage of cooling tube and compressor

Attending electrical problem of water cooler from inside and outside both.

Attending water leakage of water cooler from inside,

Attending of the water pipe connection.

Painting of water cooler’s Base & body to avoid corrosion

Complete repair/ overhaul of compressor

Repairing of body and base plate

M/S AIR FREEZE

M/s R.L.ENGINEERING