Providing urgent works for 2x120TR /2 x 178 TR Central AC plants installed at T.E. Building J.L.N Marg and other Miscellaneous Airconditioning works ,MTNL, New Delhi

Amount

Supplying and filling lubricants for screw type compressor in AC chiller with removing covers, gaskets and change of oil with bitzer make or equivalent etc as required.

Providing for filling refrigerant (R-134A) gas in screw chiller of central AC system (178 TR and 120 TR Capacity) consisting of Air handling units, compressors condensers, chillers etc. including preliminary inspection w/o pressure testing, locating leakages in system including other related works as reqd.

Solution (MEG) of requesite density in the thermal storage tank having two no of storage tank installed in lower basement i/c the work comprising of desilting flushing the tank with pneumatic arrangement and also carryout special jobs related to AC system etc as reqd.

Providing and fixing drier in refrigerant circuit of AC chiller unit including brazing, welding, testing etc. complete as required.

Providing & installing soft/hard copper pipe including cutting bending, jointing, brazing etc. as required for hot and liquid refrigerant (a ) 1/4"

Charging of R-22 refrigerant in the existing AC package/ductable/ split/window unit after purging the air, testing and commissioning the units etc. complete as reqd. a) 1.5 / 2.0TR (nominal capacity) Split /window AC unit ( Complete Unit )

SITC of drain pipe of following size suitable for ductable type Acs complete as required. (a) 25 mm heavy duty PVC pipe

b)32 mm heavy duty PVC pipe

Supplying and fixing of Copper conductor cable from indoor to outdoor unit i/c making connection with required thimbles etc.a) 3C x 2.5sqmm

Pressure testing with nitrogen, vaccumizing & checking of leakage, commissioning of following AC units etc. complete as required. b) 1.5 / 2.0 TR ductable / Split type/window AC unit

Shifting i/c Dismantling of following type AC units i.e removing the indoor unit disconnects the connection with the help of brazing, disconnect the electrical connection and then shifting/loading/unloading and carrying the out door units and indoor unit from one place to another place and refixing making cable connections etc comp as reqd. a) 1.5 / 2.0 TR Split type AC unit

b) 1.5 / 2.0 TR window

Minor civil work such as cutting, widening and making small holes for passing of the AC pipes & Drain pipes on wall/surface etc i/c making good the damages etc. complete as required.

Providing and fixing of 9mm thick cross linked polyethylene insulation for copper piping in order to protect it from air borne impurities complete as reqd. as per site location.

Supply and fixing PVC DLP trunking of size 105mm x 50mm on the existing wall/surface & finishing work complete as required.M/s AKg/Legrand

Fabricating & installing of following size copper piping/ cable tray made out with M.S. Slotted angle/factory fabricated tray i/c nut bolt, screw, etc. as reqd. (a) Width size not exceeding 150mm

Dismantling and removing the existing punctured / rusted / damaged heat exchanger coils from condensers of AC units installed for switch room i/c disconnecting refrigerant pipes, control cables etc. and then fixing new heat exchanger coils made of copper pipes and aluminium fins as per specifications and OEM standards along with GSS/GI Blank off/supporting arrangement in existing cabinets i/c pressure testing,vacummising, refrigerant gas charging etc. complete as required. (Capacity-8.75 TR Make-Blue Star)

Minor repairing of following capacity Indoor coils i/c its dismantling from existing unit to the floor for checking the leakages and reparing the coil by brazing, welding, refixing and refitting in position and making it functional etc complete as required a )8.75/8.5 TR

Floor cutting ,laying of Drain Pipe from existing indoor unit to outside area repairing the same etc as required

Less credit for dismantled material (Unserviceable Item/ Faulty parts/ Faulty Condenser coil etc).