IITKGP/IW/RAC/COE AI and MECH/2025

Amount

SITC of Ceiling Suspended Inverter type Air-cooled Air-conditioner with all inverter type scroll/rotary compressors of the following Capacity with single or Multiple Compressors and first charge of R410a etc as per specification, including required (1) Interconnecting refrigerant Copper piping with 13mm thick nitrile rubber insulation upto 30mtr distance (2) Electrical earthing & cabling (copper), suitable for operation in AC 415V 3-phase 50 cycles supply, from ODU & IDU to four pole MCB switches with encloser provided (3) Canvas and non return damper at IDU opening. (Preffered Make: Daikin/ Hitachi/ Carrier/ Toshiba/Mitsubishi Electric/ Bluestar/ Voltas/ O General/ LG)

Supply and erection of Pre-fabricated double walled pre insulated spiral round tubes (13mm thk. nitrile rubber class "O" insulation/ 25mm fiberglass insulation in between the two ducts) in GI with factory fabricated duct supporting clamps as given in specification/ approved drawings.All round ducts to be measured by consideration of inner dia of the duct. (Preffered Make: GP Spira/Rolastar/Zeco)

Supply, installation & testing of site fabricated GI ducting with necessary support & fittings and thermal insulation of supply air duct with 19mm thick Al foil faced nitrile rubber (Class: O) and joint sealed with Al tape as per specification. (Preffered Make of insulation: Armaflex/ K-flex/ Armacell)

Acoustic insulation with 10mm thick Open Cell Nitrile Rubber as per specification. (Preffered Make of insulation: Armaflex/ K-flex/ Armacell)

Aluminium Powder coated Grille for supply air with al collar damper shall be fitted directly on the spiral duct. Size - 600 X 150 (Preffered Make: Systemair/ Airmaster/ Dynacraft/ Premier)

Fresh air arrangement with GI vcd & al. louver. Size: 300 x 300

Duct Dampers & Non return damper at IDU Opening (Preffered Make: Systemair/ Airmaster/ Dynacraft/ Premier)

Supply, installation, testing & commissioning of supply air diffuser of powder coated aluminium with al. vcd with smudge ring & removable core. Outer Size - 595 X 595 and neck size as per approved drawing. (Preffered Make: Systemair/ Airmaster/ Dynacraft/ Premier)

Supply, installation, testing & commissioning of Return air diffuser of powder coated aluminium with al. vcd with smudge ring & removable core. Outer Size - 595 X 595 as per approved drawing. (Preffered Make: Systemair/ Airmaster/ Dynacraft/ Premier)

Supply, installation, testing & commissioning of 25 mm dia UPVC pipe for drain with 6mm thick nitrile rubber insulation

CIVIL SCOPE

Making wall opening for passage in the wall/glass for ref & drain pipes,fresh air, cables etc as per the marking at site by the AC vendor and making good of the same for all the indoor/ outdoor units.

Civil foundation for Outdoor unit

TRANSTECH (BID ID -3183324)