Miscellaneous work of AC units installed at different T.E Building and RSUs under Executive Engineer(E)LR,MTNL,New Delhi.

Amount

Providing and installing following size soft/hard copper pipe including cutting, bending, jointing, brazing etc as reqd. for hot and liquid refrigerant line complete as required as per site requirement. a) 7/8"

Providing & making drain arrangement for AC units with following pipe i/c Tee, Union, Socket & Elbow etc as required. a) 20 mm dia drain pipe.

b) 25 mm dia medium class PVC pipe.

c) 40 mm dia medium class PVC pipe.

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.

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) 1.5 TR / 2.0 TR (nominal capacity) AC unit.

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

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

d) 8.5TR / 8.75 TR /9TR(nominal capacity) AC unit (each Circuit).

e) 11.0 TR / 12 TR (nominal capacity) AC unit (each Circuit).

Supplying, laying and fixing of following sizes pvc sheathed copper conductor armoured / unarmoured cable on the existing wall / ceiling for power / control cable etc making connections and testing etc complete as reqd as per site location. (Make: Havells/ KEI/ Polycab) a) 4 x 10 sq. mm copper armoured cable.

b) 4 x 6 Sq. mm copper armoured cable.

c) 3 core 2.5 Sq.mm flexible copper cable.

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.

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 1.5 TR / 2 TR (nominal capacity) AC unit.

b) Condenser coil for 4 TR / 5 TR / 5.5 TR (nominal capacity) AC unit.

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

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

e) Condenser coil for 11.0 TR (nominal capacity) AC unit.

Supplying and fixing of synthetic fibre media washable filters with frame (Efficiency 90% down to 20 microns) for 7.5TR to 11.0TR ductable / package AC unit.

Supplying and fixing of new condenser coils for existing installed storage type drinking water cooler including dismantling the existing faulty condensor coil and making proper size copper pipe connection, brazing at joints, pressure testing with nitrogen, pressure standing for at least 8 hr., vaccumzing & commissioning with appropriate refrigerant etc complete as required as per site requirement.

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 1.5 TR / 2 TR (nominal capacity) AC unit.

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

c) Evaporator coil for 4 TR /5TR /5.5 TR (nominal capacity) AC unit.

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

Pdg. & fixing of electrical/switchgears used for AC plant/centifugal fan/air washer & other works complete as reqd. a) 100 Ampere rating TPMCCB. (Make: L&T/GE/Havells)

b) 63 Ampere rating TPN SFU along with fuse/ FPMCB. (Make: L&T/GE/Havells)

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.

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

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

Shifting including dismantling of 1.5 TR / 2 TR / 2.5 TR AC units i.e. disconnects the connection with the help of brazing, removing drain piping, disconnecting the electrical connection and then removing the complete unit (indoor & outdoor), loading / unloading and shifting the unit within the building etc complete as reqd.

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.

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

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

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.

Less credit for dismantled material and dismantled material shall be the property of contractor.

M/s Super Maintenace and Services

ARCHY SERVICES PRIVATE LIMITED