Tender For Special Repair Of Ac Machines At Mru Unit At The Top Floor Of Baker Building Under Nrsmc And H- 1 SITC of 5TR capacity concealed type Split Air onditioner of rated cooling capacity of 60000 BTU/hr. with 2Nos. rotary compressor,2nos.IDU of rated power supply-230V-1ph-50Hz,1no. ODU of rated power supply-400V-3ph-50Hz.Air-flow/per IDU:- 1000CFM.(Make: Hitachi/Mitsubishi-Electric) 2 Copper Refrigeration pipe line for liquid and suction line with fittings, elbows, bends, supports & brackets (Make-Ryoku) 3 a) Liquid Line (3/8 OD with 0.6 mm thick) 4 b) Suction Line (5/8 OD with 0.7mm thick) 5 Supply & Fixing Pipe Insulation in liquid & suction line with 9mm nitrile rubber tube (Accoflex) 6 a) Liquid Line(3/8 OD with 0.6 mm thick) 7 b) Suction Line (5/8 OD with 0.7mm thick) 8 Control copper Cabling from Condensing Unit to control panel (Make: KEI/polycab/ finolex) 9 a) 4 core 2.5 sq.mm communication cable 10 S & L of Drain Water piping work out of PVC / HDPE hard pipes of following sizes incl. fitting, accessories, bends, elbows, tees, flanges, tapings, wall sleeves, hangers, supports, anchors. 11 a) 25 mm dia 12 Charges for scaffolding arrangement incl.lifting for outdoor & indoor units. 13 charges for trap door of 1600 mm x 600 mm and 9 mm thickness made of aluminium channel & ply wood for IDU maintenance. 14 Supply and fixing flexiblecanvass connection for concealed splitair-conditioners. 15 Supplying, fitting & fixing in position suspended boxing for return air arrangement & indoor units of concealed split airconditioner with frame work of aluminium hollow section of size 50mm x25mm (2.0mm thickness) combined with aluminium corners of size 38mm x 25mm, suspended by aluminium hollow tube section of size 38mm x 25mm ,25mm x 25mm powder coated wall angle with aluminium composit panel of thickness 3.0mm comprising of protective film, polyester coating, primer,aluminium coil, adhesive film, polyethylene core again with one layer adhesive film, aluminium bottom coating and finally service coating as per manufacturers specification finished with aluminium screw and silicon sealent including suitable arrangement for grill fixing complete in all respect as per direction of EIC. 16 Supplying, fabrication & fixingM.S u-channel of 6 mm thick of size (75 mm x 40 mm x 40 mm) for making platform for installation of outdoor unit ofConcealed split AC incl. drilling 2 nos holesin each channel including cutting holes into the wall & grouting the same with cement concrete (1:1 ½ :3) etc. fabricated with horizontal angle of 25 mm x 25 mm x 6 mm including supporting angle 50 mm x50mm x 6 mmin each platform in outer edge for transmitting the load centrally through 2Nos. (50 mm x 50 mm x 6 mm) Angle inserted into the exiting wall. The entire structure should be barricaded & safe for ODU maintenance. Area of the platform is3Mtr. x 1.2Mtr.Structural design should be approved by E.I.C. 17 Supplying and Drawing 1.1 KV single core stranded FR PVC insulated & unsheathed single core stranded copper wire gloster/RR Kable/Finolex) of the following sizes in the prelaid polythene pipe and by the prelaid GI fish wire incl. cutting channel and making necy. connection as required. [E-9,1] 18 a) 4x10 sqmm+2x 6 sqmm ECC) [ For AC ] [Vide page no-E-9,item no-1(d1)] (From VTPN to AC indoor) 19 Finishing of the PVC insulated wire ends by socketting with pin/ ring type copper sockets and insulated tapes etc., including supplying sockets, tapes.[Vide page No F-5, Item No-9 (i)& (ii)] 20 a) 4x10 sqmm + 2x6 sqmm ECC [ F-5,9(iv&iii)] 21 Supplying and fixing MCB SS enclosure with IP-20/30 protection, powder coated provision with 415V,63A four pole MCB,concealed in wall after cutting the wall & mending good the damages to original finish incl. painting,connection & provision for earthing. attachment(D6/7+D9/11) 22 Supply & fixing of 415 V Timer DB with steel sheet enclosure double door, phosphatised powder coated , neutral bar, Din Rail with IP-43 protection. i) 1 no. 32A TPN MCB (C Curve, 10 kA,), ii)1 no. 24 hours programmable Digital Time Switch. (Cat no:-67DDTO make:- L&T/ or Similar) iii) 2 no. 32Acontactor,3-phase screw type motor starter.iv) 1 no. Auto Manual bypass Changeover Switch . v)Provision for earthing attachment including LED indication light for running condition and locking arrangement. Suitable DB size selection with internal wiring 6sqmm Copper wires along with Proper Connection with Cu.Socketting end to be fixed maintaining recommended clearance.as directed by EIC. (Make:- (L&T/Legrand) 23 Defect Liability period : 1 year
