Associated Airconditioning works at various TE building/ RSU sites under EE (E) BCP, MTNL New Delhi

Amount

Replacement of existing damaged G. I. sheet metal ducting with same GI sheet metal ducting of 22 gauge for air supply,mixing , air distribution , complete with following thickness (gauge) i/c nut bolts, gaskets, suspenders, supports etc. as required.

Replacement of existing torn-out canvass connection with same size fire resistance canvass cloth connection etc. complete as reqd.

Replacement of old unrepairable/damaged SAG/RAG/SAD/RAD with fresh powder-coated Aluminium construction Supply/return air grill or Diffuser with 60% free area without volume control dampers etc. complete as reqd. (Note: Area up-to 4 sqft.)

Replacement of old unrepairable/damaged SAG/RAG with fresh air- grill for ductable indoor unit etc. complete as reqd. (Note: Size upto 4 Sqft.)

Replacement of old unrepairable/damaged Volume control damper with fresh same size VCD for package indoor / ductable indoor units/duct etc. complete as required.

Replacement of existing damaged kini-foam insulation with new 6mm thick aluminium-faced kini-foam insulation & fixing with manufacturer recommended adhesive on existing duct/ wall/ ceiling or roof etc. complete as reqd.

Replacement of existing damaged Kini foam insulation with 9mm thick FR XPE pipe section insulation for refrigerant piping etc. complete as required.

Pdg. & installing following size copper pipe including cutting bending, jointing, brazing etc as reqd. for hot suction and liquid refrigerant line complete as reqd. a) 1 1/8"

Pressure testing with nitrogen, pressure standing for at least 8 hr., vaccumzing & commissioning with appropriate refrigerant for following A C units complete as reqd. a) 11.0 TR AC unit

b) 8.5/ TR AC unit

c) 7.5 TR AC unit

d) 4.0 TR/ 5.0/ 5.5/ 4.37 TR AC unit

e) 1.5 TR/ 2.0TR

Supplying and filling the following refrigerants. a) R-22 gas charging/ gas top up

b) 410 A/32 gas charging/ gas top up

Replacement of old clogged a.c. filters with new a.c. filters having 85% efficiency down to 20 microns suitable to fit in the ductable unit / package unit/duct/plenum at the supply air/return air path complete as reqd. a) Return air filter for A.C. units

Supplying, laying, fixing, testing and commissioning of following sizes PVC sheathed copper conductor cable on the existing surface as reqd. a) 4 x 10 Sq. mm Copper Armoured cable.

b) 4x1.5 Sq. mm

c) 17 Core unarmoured Cable

d) 4x4 Sq. mm Copper unarmoured cable.

e) 3x2.5 sq.mm copper conductor flexible cable

Fabricating & installing of following size cable tray made out with M. S. Slotted angle & square pipe or slotted sheet material i/c nut-bolt, screw, supports and suspenders etc. for cable/ refrigerant piping complete as reqd. a) size up-to 200 mm width

b) size above 225mm width & up-to 300mm width

c) Width size not exceed 150mm

Supplying & laying of 8 SWG. GI wire on surface or on recess for loop earthing on the existing surface /Recess with main power cable etc. as reqd.

M. S. Structure work for i/c designing, fabricating at site as per site requirements i/c cutting, welding, fixing, painting with one coat of red oxide primer and two coats of enamel paint in approved shade etc as reqd. a) 40mm x 40mm x 5mm M. S. Angle iron/ MS Strip/ MS Chhanel/ MS angle of any size

b) 9mm M S rod

c) M.S. Frame (stand type)/foundation wall Bracket for outdoor units of 5.0TR to 5.5TR ductable/package a.c.units complete as reqd.

d) M.S. suspenders for indoor units of 5.0TR to 11TR ductable/package a.c.units complete as reqd with the help of heavy labour/ trolly etc

Providing & making drain arrangement for A/C units with following pipe i/c Tee, Union, Socket & Elbow etc as reqd. (uPVC hard medium class) a) 25 mm dia (NB)

b) 32 mm dia (NB)

Providing & fixing of drain tray of 5.0/7.5 TR ductable AC unit

Pdg. & fixing automatic phase correction system for ductable A C unit which should work in such a way that as the series of phases changed from the 3 phase A C supply it will work and make the series phase correct so that the A C units operation does not effect i/c its wiring for 5.0 TR & 7.5 TR AC unit complete as reqd.

Dismantling of old package/ductable/split AC units i/c all associated works like ducting, piping, cabling, trays ; shifting the same to the store / designated location within the building premises as per the instructions of the engineer-in-charge. with the help of crane/chain pully block & heavy labour ( 1 unit/ job)

Lifting & shifting of A.C units with the help of heavy labour & chain pully block from ground floor to the floor where the A C plant room is situated complete as reqd.

Shifting of dismantled AC unit along with all accessories to another site under jurisdiction of EE(E) with the help of heavy labour and chainpully, transportation etc. as reqd. ( 1 unit / job)

Minor civil work/Wall opening/pota cabin cutting and making good/sealing complete as reqd. ( one unit

Pdg. & fixing of electrical/mechanical switchgears complete as reqd. a) 63amp TPN MCB

b) 100amp TP MCCB of 25KA Breaking capacity (Make-M/s L&T/GE/Legrand/C&S/ABB)

c) 200amp MCCB

Pdg. & Fixing PVC flooring i/c cleaning of floor spreading the adhesive, pasting the PVC sheet rolling with weight on the pasted sheet for proper fixing complete as reqd.

Provision of colour coding of copper pipe with suitable colour paint.

SITC of R.A. boxing made of 6 mm water proof ply, slotted angle, fixing with fasteners nuts & bolts etc.

Providing MS wiremesh work with enamel paint and redoxide complete as reqd.

AC Guard CP-Corrosion prevention coating for brazing joints, U band, interconnecting copper piping of indoor and outdoor a.c. units. (Note: Per Job Per Unit)

Replacement of faulti mechanical item of package/ductable AC unit & other works complete as reqd. (old material shall be the property of contractor) a) Angel valve/pin valve for ref. circuit.

b) Drier for AC unit

c) 2.5 TR refurbished compressor suitable for Carrier/BSL/LG/Voltas/ Hitachi make twin ckt 5.0TR AC unit (Make : Carrier/Kirloskar/ Copeland)

d) 3.75TR /5.5TR refurbished compressor suitable for Carrier/BSL/LG/ Voltas/ Hitachi Make 7.5TR/ 11.0TR AC unit (Make : Carrier/Kirloskar/Copeland)

SITC of control wires remote indication suitable for carrier 5TR/7.5TR control kit of carrier panel

Rewinding of old defective blower motor of 7.5TR AC unit

Replacement of rewound condenser fan motor for AC unit

Replacement of old damaged 8mfd condenser of blower motor.

Replacement of old damaged condenser fan for carrier make 7.5TR/5.0TR ductable a.c. Unit

Replacement of old damaged blower-fan for carrier make 7.5TR/5.0TR ductable a.c.unit

Replacement of old damaged Control unit scanner for indication of reverse phase, high voltage etc. complete as reqd.

Replacement of old damaged Condenser coil of following a.c. units including dismantling the faulty coil and making proper size copper pipe connection brazing at joints etc. as required. (a) 1.0 TR to 2.0 TR A.C. Unit

(b) 2.5 TR to 3.0 TR A.C. unit

(c) 4.0 TR A.C unit

(d) 5.0 TR to 5.5 TR A.C. unit

(e)7.0TR to 7.5 TR A.C unit

(f) 8.5 TR to 9.0 TR A.C. unit

Replacement of old damaged evaporator coil of following a.c. units including dismantling the faulty coil and making proper size copper pipe connection brazing at joints etc. as required. (a) 1.0 TR to 2.0 TR A.C. Unit

(b) 2.5 TR to 3.0 TR A.C. unit

(c) 4.0 TR A.C unit

(d) 5.0 TR/ 5.5 TR A.C. unit

(e) 7.0 TR to 7.5 TR A.C. unit

(f) 8.5 TR to 9.0 TR A.C. unit

(g) 11.0 TR A.C. unit

Replacement of old damaged remote-control for indication of on/off position of AC unit etc. complete as reqd.

Chemical servicing of ductable/packages with the help of water & chemical of outdoor a.c. unit.

Labour work & installation following size copper pipe including cutting bending, jointing , brazing etc. as reqd for hot suction and liquid refrigent line complete as reqg. a) 1/1/8

Labour work for laying , fixing ,testing and commissioning of following sizes PVC sheathed copper conductor cable on the existing surface as reqd. a) 10X4 Sq.mm Copper Armoured cable

b) 4X1.5 Sq.mm

c) 17 Core unarmoured Cable

d) 4x4 Sq.mm Copper conductor flexible cable

SITC of outdoor of 5.0/5.5 TR ductable AC units for Carrier/BSL/Hitachi make suitable for ref.CKS & 3 phase supply.

Dimentalling of old hanged duct in the building & shifting the same in store of the same building as per instruction of Engineer in charge

M/s Merco Airconditioning Refrigeration Engineers (BID ID -3112634)