SITC of package/ductable AC unit at various RSU/TE Building under EE (Elect) LR MTNL New Delhi (SH Repair Associated Works)

Amount

Supply & fixing of G. I. sheet metal ducting for air supply,mixing , air distribution , complete with following thickness (gauge) i/c nut bolts, gaskets, suspenders, supports etc. as required. a) 24 gauge G. I. Sheet

b) Canvass connection with fire ressistance cloth complete as reqd.

Providing & fixing of following size of powder coated Aluminium construction supply/return air grill or Diffuser with 60% free area etc. complete as reqd. a) Return air grill / Diffuser (Size:As per requirment, area :less than or equal to 4 sqft.)

b) Pdg. & fixing of air grill for ductable indoor unit of suitable size complete as reqd. (Size upto 4 Sqft.)

Replacement of faulty compressor with the factory repaired compressor i/c dismantling of the faulty one from site and re-fixing the new one etc as reqd. (Make : Carrier/ Kirloskar/ Copeland) a) 2.5 TR / 3.75 TR.

b) 5TR / 5.5 TR.

Providing & making drain arrangement for AC units with following pipe i/c Tee, Union, Socket & Elbow etc as required. a) 40 mm dia medium class PVC pipe.

b) 25 mm dia medium class PVC pipe.

c) 20 mm dia drain pipe.

Pdg. & fixing Kini foam insulation / 9mm thick FR XPE pipe section insulation for refrigerant piping in order to protect it from air borne impurities complete as reqd. as per site location.

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 and commissioning with appropriate refrigerant for following A C units complete as reqd. a) 11.0 TR / 12 TR (nominal capacity) AC unit.

b) 8.5TR / 8.75 TR /9TR(nominal capacity) AC unit.

c) 7.0 TR / 7.5 TR (nominal capacity) AC unit.

d) 4.0 TR / 5.0TR / 5.5 TR (nominal capacity) AC unit.

Providing and charging of R-22 gas for top up of refrigerant in the AC units complete as required.

Pdg. & fixing following type of filter 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. (Make: Havells/ KEI/ Polycab/ Finolex) a) 4 x 10 Sq. mm copper armoured cable.

b) 4x1.5 Sq. mm copper armoured cable.

c) 17 core unarmoured cable

d) 4x4 Sq. mm copper unarmoured cable.

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

Supplying and installing of following size M.S cable tray made out with following M. S. Slotted angle & squire pipe or slotted sheet material suspended from the ceiling with M.S. suspenders including screws,bolts & nuts, painting etc as required. a) Width size not exceeding 150 mm.

b) Width size above 150mm not exceeding 300mm.

c) Width size above 300mm not exceeding 500mm.

Providing and fixing 8 SWG dia GI wire on surface or in recess for loop earthing along with existing surface/recessed conduit/ submain wiring/power cable as required.

Providing and making MS structure work such as MS platform/duct supports/tray supports/frame for indoor and outdoor AC units i/c cutting, welding, painting with redoxide and then enamel oil paint of approved color etc. complete as reqd. as per site location.

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. suspenders for indoor units of 5.0TR to 11TR ductable/package a.c.units complete as reqd.

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 or providing & fixing of power saver i/c its wiring for 5.0 TR to 7.5 TR AC plant complete as reqd.

Dismentalling of drain pipes, copper piping, cabling, cable tray and shifting to desired location as given by Engineer-In-Charge.

Dismentalling of old package/ductable indoor and outdoor AC unit including its electrical /mechanical connection,old GI duct/insulation complete as reqd and shifting it to the desired location as given by Engineer-In-Charge.

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

Minor civil work such as cutting, widening and opening the floor/wall and other civil work for installing refrigerant piping/drain piping/ ducting/electrical cabling for each cutout including finishing the same complete as reqd.

Pdg. & fixing of electrical/switchgears used for AC plant/centifugal fan/air washer & other works complete as reqd. a) 63 Ampere rating TPN SFU along with fuse/ FPMCB. (Make: L&T/ GE/ Legrand/ C&S/ ABB/ Havells)

b) 100 Amp TPMCCB of 25KA Breaking capacity (Make: L&T/GE/Legrand/C&S/ABB)

c) 200 Amp TPMCCB. (Make: L&T/GE/Legrand/C&S/ABB)

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 color coding of copper pipe with suitable color paint.

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

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

Replacement of mechanical item of package/ductable AC unit & other works complete as reqd. a) Angel valve/pin valve for ref. circuit.

b) Drier for AC unit

Supplying and fixing new evaporator coils for following AC unit including dismantling the faulty existing evaporator coil and making proper size copper pipe connection, brazing at joints etc as reqd. a) Evaporator coil for 4 TR /5TR /5.5 TR (nominal capacity) AC unit.

b) Evaporator coil for 7.0 TR / 7.5 TR (nominal capacity) AC unit.

c) Evaporator coil for 11.0 TR (nominal capacity) AC unit.

Supplying and fixing following new condenser coils including dismantling the existing condensor coil and making proper size copper pipe connection, brazing at joints etc as reqd. a) Condenser coil for 4 TR / 5 TR / 5.5 TR (nominal capacity) AC unit.

b) Condenser coil for 7.0 TR / 7.5 TR (nominal capacity) AC unit.

c) Condenser coil for 8.5 TR / 8.75 TR/9TR (nominal capacity) AC unit.

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/9 TR/11 TR AC unit.

Rewinding of old defective condenser fan motor of 7.5TR/9 TR/11 TR AC unit.

SITC condenser fan for carrier make 7.5TR/5.0TR unit.

SITC of blower fan of carrier make 7.5TR/5.0TR unit.

SITC of out door of 5.0/ 5.5 TR ductable AC units for Carrier/ BSL/ Hitachi make suitable for ref. CKT & three phase supply.

SITC of out door of 7.5TR ductable AC units for carrier make suitable for ref. CKT & three phase supply.

SITC of remote control or indication of on/off position of AC unit etc. complete as reqd.

Less on account of old dismentaled material shall be property of contractor.