Repairing of Damaged Copper pipe line of AC Machines installed at NICU/PICU (outside area) and Paediatrics Department, teaching corner area inside NBMCH, Darjeeling.

Amount

Supply & filling of Refrigerant . (Make-Godrej/floron)

Thorough overhauling and purging of Refrigeration Unit by N2 gas pressure for removal of moisture, slag & dust for smooth refrigerant flow and to avoid choking as per direction of E.I.C

Supply & fixing of 5/8 and 1/4 copper pipe, with 9mm thick nitrile rubber insulation along with other access on the surface of wall

Supply and laying of hard drawn 7/8 dia refrigerant copper pipe for suction line with 13 mm thick insulation

Supply and laying of hard drawn 5/8 dia(0.7 mm thick) refrigerant copper pipe for liquid line.

FRAME WORK: Supply, fabrication and installatiojn of MS base frame outdoor units. i) Supplying,fabrication & fixing M.S u-channel of 6 mm thick of size (75mm x40mm x 40mm) of 1m. Lengthfor making platform for installation of outdoor unit of 11/8.5/5.5/4TR ductable split AC incl. drilling 2nos. Holes in each channel including cutting holes into the wall & grouting the same with Cement concrete ( 1:1 1/2 :3) etc. fabricated with horizental angle of 25mm X 25mm x 6mm including supporting angle 50mm X 50mm X 6mm in each platform in outer edge, for transmitting the load centrally through 2Nos. (50mm x 50mm x 6mm) Angle inserted into the exiting wall. The entire platform should be baricated & safe for ODU maintaince. Area of the Platform is 3Mtr x 1.2Mtr.

Supply & Laying drain water piping work out of UPVC / HDPE HARD pipes of following sizes incl.fitting, accessories upto ground level.(20 mm dia / 25 mm dai) ( Make - HB / Supreme / Oriplast)

SITC of Indoor blower motor of 11TR ductable AC. (Make-Hitachi)

Supply and fixing of 8.5TR scroll compressor for R-410a refrigerant (Make-Kirloskar/Emerson-ZP104 )

Supply and fixing of 3phase, R22 refrigerant compressor for 11TR ductable AC Machine.(Emerson-ZP137/Hitachi)

Dismantling & reinstallation the outdoor unit of Split type A.C. machines from its existing installation places after disconnecting the power line, gas pipe line with very carefully to avoid any damages for checking, servicing & repairing as required.

Supply & fixing of Suction valve as per direction of the E.I.C.

Supply & fixing of replacement of strainer capillary set.

Dismantling the 11tr outdoor from existing position after disconnection of copper pipeline by oxygen welding and disconnection of powerline and re-installation of the same on existing iron frame base to next floor cantilever to encounter the theft of copper pipe as per direction of the E.I.C

Chatterjee Enterprise (BID ID -6898859)

COLD STAR CO. (BID ID -6904708)