WBPWD/AE-NSESD/NIQ-36/2026-27

AC MACHINES Supply of Microprocessor based air-cooled ceiling Concealed type split Air Conditioner comprising of indoor unit,outdoor unit having both condensing and cooling unit made of Cu tubes having cooling capacity not less than 10000W, ISEER ratio:- 3.1 to 3.9, Noise level not more than 55db with scroll/rotary Compressor suitable for R-410A/R-32 Refrigerant & operation on 415V - 50 Hz - 3 Ph AC supply.(Make-Mitshubishi Heavy Industries/O-General /Mitsubishi Electric//Daikin/Hitachi as per approved by EIC/authority).

Supply & Installation of Extra Add-on items- HVAC grade 5/8"(for suction) & 3/8"(for discharge) 1.15mm thickness copper refrigerant pipe with 9mm thick nitrile rubber insulation including shaddle,screw, insulation tape, fastner etc for above AC machine as per direction of EIC.

Supply & Laying of 4core 2.5 sq.mm 1.1 KV insulation grade sheathed Cu cable with gas line as per direction of EIC for making interconnection/communication between Indoor to Outdoor unit of Ceiling Concealed split AC machine. (Polycab/Gloster/Finolex/KEI/ Havells /RR Cable as approved by E.I.C)

Supply & Laying 20 mm hard PVC pipe (heavy type) for water drainage.

Supplying, fabrication & fixing 2 Nos. M.S. Angle of size (50 mm x 50 mmx6mm) for making platform for installation of outdoor unit of 3.0/4.0 TR ceiling concealed AC incl. drilling 2 nos holes in each Angle 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 40 mm x40mm x 6 mm in each platform in outer edge for transmitting the load centrally through 2Nos. (40 mm x 40 mm x 6 mm) Angle inserted into the exiting wall. The entire structure should be baricated & safe for ODU maintenance. Area of the platform is 2Mtr. x 1Mtr. or as per Machine configuration & load with adequate service access as per direction of EIC.

ELECTRICAL INSTALLATION Supplying and Drawing 1.1 KV single core stranded 'FR' PVC insulated & unsheathed single core stranded copper wire (Brand approved by EIC) of the following sizes in the prelaid polythene pipe and by the prelaid GI fish wire and making necy. connection as required. [E-9/1y] 4x56/0.3 (4 sqmm) + 1x36/0.3 (2.5 sqmm) as ECC

Supplying and fixing PVC Rigid Conduit 'FR' [Precision Make] on wall, ceiling with saddles and other accessories as required and mending good damages to building works. [E-16/7a] 20mm size

Finishing of the PVC insulated wire ends by socketting with pin/ ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. [F-5/9] 4 sqmm

2.5 sqmm

S&F Timer Control Unit for Three phase ceiling Concealed type Split AC machine assembled with following accessories: - i)12-way double-door(Metal door) SPNDB Box (L & T cat no.-DBSPN012DD or equivalent model of Legrand/ Siemens as approved by E.I.C)-1 no. ii)25A FP 30mA RCBO (Make: L&T Cat no.- AUF3C402503 or equivalent model of Legrand /Siemens ) - 1 no iii) 22A 3-pole power contactor (L&T: Type- MNX22 ; Cat no.-CS94980 or equivalent model of Siemens/ABB)-1no. iv) Digital 24 hour time switch (Make-L&T Cat no.-67DDT0 or equivalent model of GIC/Siemens) -1no. v)Melamine terminal block-4 nos. vi)LED indicating lamp RYB (L&T: SIL R 240V)-3 no. vii) ON/OFF Push(L&T: emn R/G fd-1) = 2 nos All control circuit wiring would be made by 1x2.5 sqmm FRLS stranded Cu wire(Brand approved by E.I.C) and the I/C & O/G circuit with 4x4sqmm copper wire of suitable length maintaining colour code incl taping, socketing to complete the work.