Supply, Installation, Testing and Commissioning of different capacity air cooled type AC Units with associated works at various TE Builidngs/RSU under the jurisdiction of EE(E)KBN, MTNL, New Delhi.

Amount

Supplying/Installing/Testing & commissioning of following nominal capacity AC ductable units complete with outdoor unit, indoor unit, compressor operating on 3 phase ,415v + 10%,50Hz A.C. supply & with all other associated accessories like various motors, cooling coils, filters, blowers etc complete in all respect and capable for performing cooling, air circulation and inbuilt motor protections etc.as reqd. a) 11 TR Ductable AC unit

b)8.75 TR Ductable AC unit

c)5.5 TR Ductable AC unit

Supplying and fixing of G.I Sheet metal ducting i/c air distribution system, complete thickness gauge i/c nut bolts & gasket etc. as required.a)22 Gauge G.I Sheet

b)24 Gauge G.I sheet

Pdg. & fixing Volume Control damper for the package unit/ductable to control the supply air quantity complete as reqd

Canvas Connection with fire resistance cloth complete as reqd.

Providing and fixing supply air grill/diffuser with VCD for indoor ductable/Package AC units etc complete as required.

Providing and fixing return air grille/diffuser to be fixed in return air path etc complete as required.

Providing and fixing of airgrill for ductable indoor unit of suitable size complete as reqd (Size up to 4 sqft)

Providing & fixing of 25 mm thick thermal insulation for accoustic/partition work as per site requirement for duct, wall, room, false ceiling or roof as reqd.

Pdg. & installing following size copper pipe including cutting bending, jointing, brazing etc as reqd. for hot and liquid refrigerant line complete as reqd. a) 7/8"

Pressure testing with nitrogen pressure standing for at least 8 hr. vaccumzing & commissioning with refrigerant of following AC unit complete as reqd. a)11 TR Ductable AC unit

b)8.5/8.75 TR Ductable AC unit

c)5/5.5 TR Ductable AC unit

Providing and charging /Top up of R22 gas as per requirement of machines at site etc as required

Supplying & laying of following sizes PVC sheated armoured copper conductor cable on the existing wall/ ceiling for power/ control cabling etc. as reqd. (a) 4 x 10 Sq. mm

b) 4 C x 6Sq.mm

c) 3x 2.5 Sqmm

d) 4 C x 1.5 Sq.mm

e)3 x1.5 Sqmm

c) Multicore unarmoured copper cable 8 Core x 1.5 Sqmm

Fabricating & installing of 150mm wide cable tray made out with following M.S. Slotted angle & squire pipe or slotted sheet material i/c nut bolt, screw, etc. as reqd. (a) With slotted angle / squre pipe

Supplying & laying of 8 SWG. G.I. Wire on surface or on recess for loop earthing on the existing surface recess with main power cable etc. as reqd.

Pdg. & making MS structure work for cond/ duct supports/tray support/accoustic grid with following accessories i/c cutting, welding, painting of the same etc as reqd.

Providing & making drain arrangement for AC units with following pipe i/c Tee, union socket & elbow etc as reqd. PVC hard medium pipe shall be useda) 25 mm dia drain pipe

b)32 mm dia drain pipe

Pdg & fixing of copper pipe insulation (a)Pdg & fixing KINI FOAM insulation complete as reqd.

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.

Providing and fixing of 6mm thick cross linked polyethylene insulation for drain piping in order to protect it from air borne impurities complete as reqd. as per site location.

Providing and fixing MS stand/hanger supports for ducted AC Units etc as required.

Pdg and fixing MS Stand for condensor units etc as reqd.

Dismentalling of old package/ductable AC unit i/c its electrical /mechanical connection complete as reqd.

Replacement of condenser/outdoor unit of AC package/ductable unit of following capacity including dismantling, cutting /removing existing defective/outlived condenser unit from foundation /disconnecting copper pipes, electrical connections etc refixing of the complete unit ,brazing, pressure testing and trail run of the AC unit for checking of AC machine, controls, operation of AC unit. The condenser unit cabinet shall be fabricated out of heavy gauge metal sheet with powder coating, shall have aluminium fins and copper tubes having 12 fins per inch with outlet connection, compressor of following nominal capacity, condenser fan direct driven motors, terminals, accessories etc as per specification of manufacturer/OEM a)5/5.5 TR capacity

Replacement of evaporator/Indoor ductable AC unit of AC package/ductable unit comprising of evaporator coils of AC ductable units of following capacity I /c dismantling, cutting/removing section, coils from ceiling suspended AC unit, fixing of new coils, brazing, pressure testing and trail run of the AC units for checking of AC machine, controls, operation of AC unit.The evaporator cabinet shall be constructed out of heavy gauge sheet metal, powder coated along with centrifugal blowers, evaporator/cooling coils shall be constructed out Aluminium fins and copper tubes having 12 fins per inch with outlet connection etc as per specification of manufacturer/OEM etc a) 5/5.5 TR capacity

SITC of microprocessor based controller panel consisting of controlling the ac unit i/c inter connections of HP & LP cut out temp sensor and single phase preventer cut outs with display arrangement for single/two circuits in AC units with operating ON/OFF pushing arrangements etc complete as complete as reqd

Providing & fixing metallic inter connections for each circuit for distribution of air from package unit to main branch for air distribution

Lifting of dismantled AC units and Dismentaling of drain pipes, copper piping, cabling, cable tray & shifting it to desired location/store room etc as required

Lifting of A.C unit from ground floor to the desired place i e upto the site where the A C room is situated with the help of heavy labour & chain pully block complete as reqd.

Minor civil work such as cutting, widening and opening the floor/wall and other related civil work for installation of AC units and repairing the same etc for ducting, cabling and piping works.