Refurbishment /Repairing and Shifting of AC units including providing and fixing of necessary accessories for Various type of AC units under the jurisdiction of EE(E)KBN, MTNL Delhi

Amount

Supply & installation including nitrogen testing of following nominal sizes of soft drawn/hard drawn copper refrigerant piping for air-conditioning system, complete with fittings, with suitable supports, jointing/brazing including all accessories and dismantling of defective copper pipe and deposit the defective material to desired location in same building as per specifications etc. as required. a) 15.86mm dia (OD)

22.2mm dia (OD)

Supplying and fixing of PVC insulated PVC sheathed copper conductor cables of following sizes on the existing M.S. trays/walls with saddles, screws etc and end terminations of cables with glands etc. as required. A) 4 x 1.5 Sq.mm copper conductor flexible cable

Supply, installation, testing & commissioning of following accessories for different type of AC units complete as required: a) Condenser fan motor for package AC units (5.0TR or above)

b) V-belt for package AC units

c) Dryer for package / ductable AC units (5TR to 8.5TR)

d) LP Switch/HP Switch for package/ductable AC units

Lifting of Indoor and Outdoor units of 10TR/11TR ductable AC/ Package AC from one location in the building and Shifting it to the desired location on desired floor in the same building complete as required.

Supply & installation of thermostatic expansion valve for package/ductable AC units of 5tr to 7.5tr circuit complete as required

Dismantling & replacement of old faulty condenser coil copper headers of following Ductable/Package AC units and fixing of new Copper header using brazing set and making in good condition complete as required: a) 5.0TR/5.5TR condenser unit

b) 7.5TR/8.5TR condenser unit

Supply & Installation of new condenser coil for existing Package/Ductable AC unit including dismantling of old defective condenser coil with the help of brazing set and deposit the defective coil in the store of same building complete as required. a) 5.0TR/5.5TR Condenser Coil

b) 7.5TR/8.5TR Condenser Coil

Supply of fireproof flexible double canvas connection for package AC/Ductable AC unit with G.I. frame on both sides of canvas complete as reqd.

Loading, unloading & Transportation of old Package AC/Ductable AC Unit from one Location to another location within Delhi region complete as required.

Supply of 24G site fabricated retangular type GI sheet metal ducting connection piece at the air outlet of Package AC/Ductable AC unit i/c flanges, nuts & bolts etc. complete as required (upto 3 sqmtrs.)

Supply & fixing of following type of damper of size upto 5sq.ft. Made out of 18 gauge CRC/G I sheet used as fire damper, supply air damper or return air damper in main duct or branch duct or in return air path for package/ ductable AC indoor units as per site requirement. i/c nut bolt, gasket etc. as required. a.) Volume control damper

Supply and charging R-22/R-410A/R-407C gas for top-up of refrigerant in the AC units complete as required.

Leakage testing & repairing of leaks with the help of brazing set followed by pressure testing of complete circuit with nitrogen gas, flushing of whole circuit, vacuumizing and commissioning of Ductable AC/Package AC unit complete as required ( each unit).

Dismantling of old 10TR/11TR Ductable AC/ Package AC unit including indoor and outdoor unit, i/n its electrical connections , cabling etc.and lifting & shifting the old material on the same floor as decided by engineer-in-charge complete as required.

Installation of IDU & ODUs of package AC on existing Foundation/MS Stand including old ducting connection piece, fixing of old damper & fixing of old flexible canvas connection complete as required.

M/s Merco Airconditioning Refrigeration Engineers