SITC of AC units for various areas under EE(E) KBN, MTNL, New Delhi.

Amount

Supplying and installing of following TR (nominal capacity) AC units complete with outdoor unit,indoor unit,compressor operating on A.C. supply & all other associated accessories like various motors,coils complete in all respect and capable of performing conditioning and air circulation complete as reqd. a) 11.0 TR (nominal capacity) A C unit.

b) 7.5 TR (nominal capacity) A C unit.

c) 5.0 TR (nominal capacity) A C unit.

d) 4.33 TR / 4.0 TR (nominal capacity) A C unit.

e) 2.0 TR (nominal capacity) four star rating inverter A C unit.

f) 1.5 TR (nominal capacity) four star rating inverter A C unit.

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) 22 gauge G. I. Sheet

c) 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) Supply air grill/diffuser with volume control damper for room (Size:As per requirment,area :less than or equal to 4 sq ft.)

b) Return air grill / Diffuser ( Size:As per requirment, area :less than or equal to 4 sq ft.)

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

Supply & fixing of following type of damper 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 as per site requirement. i/c nut bolt, gasket etc. as required. a) Fire damper (Size: As per requirment,Area:less than or equal to 9 sq. ft.)

b) Volume control damper for supply air grill /diffurers ( Size:As per requirment,area :less than or equal to 4 sq ft.)

c) Volume control damper for package indoor / ductable indoor units./duct

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 refrigerant of following A C unit complete as reqd. a) 1.5 TR / 2.0 TR AC unit.

b) 4.33 TR / 4.0 TR A C unit.

c) 5.0 TR TR A C unit.

d) 7.5 TR TR A C unit.

e) 11.0 TR TR A C unit.

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

b) 403 gas charging/gas top up

Pdg. & fixing following type of filter having 99.9% efficiency down to 5 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 copper armoured cable.

c) 17 Core unarmoured cable

d) 2 x 16 Sq. mm copper armoured cable.

e) 3 x 2.5 sq.mm copper conductor flexible cable

Fabricating & installing of following tray made out with following M. S. Slotted angle & squire pipe or slotted sheet material i/c nut bolt, screw, etc. as reqd. a) Width size not exceeding 150 mm.

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

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

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.

Supplying & making M. S. Structure work for cond./ Duct supports/trey support/accoustic grid with following accessories i/c cutting, welding of the same etc as reqd. a) 40mm x 40mm x 5mm M. S. Angle iron.

b) 9mm M S rod.

c) Pdg. & fixing MS frame (stand type) for outdoor A C unit complete as reqd.

d) Pdg. & fixing MS frame/suspender for indoor A C unit complete as reqd.

Providing & making drain arrangement for A/C units with following pipe i/c Tee, Union, Socket & Elbow etc as reqd. a) With 25 mm dia GI B class pipe. (Length: Less than or equal to 5.0 mtr)

b) With 38 mm dia GI B class pipe. (Length: Less than or equal to 5.0 mtr)

Providing and fixing of 6mm/9mm thick cross-linked polythylene (XLPE) insulation on copper piping in order to protect it from air borne impurities including removal of old insulation complete as required as per site location.

Providing & fixing of temperature indicator for recording the temprature in plant room / switch room complete as reqd.

Pdg. & fixing of electrical/switchgears used for AC plant/centifugal fan/air washer & other works complete as reqd. a) 63amp TPN SFU/MCCB/MCB

b) 100 amp TPMCCB.

AC Guard CP-Corrosion, prevention coating for brazing joints, U bend, interconnecting copper piping of outdoor and indoor units.

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

Providing & fixing of following insulation/ accoustic /partition work as per site requirment for duct, wall, room,false ceiling or roof i/c painting with black jaipan paint, screw, nut bolt ( If reqd.)and grid size if required not less than 1200mm x 600mm with rectangle pipe/M S angle or channel/slotted angle etc complete as reqd. with following materials. a) Pdg. & fixing Duct insulation with 6 mm thick closed cell fire retardant insulation.

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.

Providing,testing and commissioning of fire tripping system at different AC plants including providing and fixing control wiring, relay, contactor and TPN/MCB/MCCB switch of suitable rating etc and making necessary connections complete as reqd.

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

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.

Minor civil work/Wall opening/pota cabin cutting and making good/sealing complete as required.

Johnson controls-Hitachi air conditioning India Ltd