Augmentation of Air conditioning system in CTX room by provision of Ductable split unit at MBB airport, Agartala.

Supply, Installation, Testing & Commissioning of cubicle type panel made out of 2 mm thick CRCA sheet, totally enclosed, IP 42 (minimum), modular type, floor mounted with channel base frame, dust and vermin proof, indoor, compartmentalized and suitable for operation on 3 phase and neutral, 415 V, 50Hz AC system with extendable busbars on both sides, including control wiring with 2.5 sq mm size FRLS wires/cable, interconnection, protections duly powder coated painting etc. having following switchgears, metering instruments and accessories as per specifications and provision for Top or Bottom Entry as approved by Engineer-in-Charge. INCOMER: 4 (Four) pole Moulded Case Circuit Breaker (50 kA), 315 Amp with built in microprocessor based release unit with adjustable setting for O/L, S/C and inbuilt E/F protection complete with spreader, extended rotary handle as required - 1 Set. Digital dual source Class 1 multifunction meter with RS 485 Port i/c suitable CTs & PTs for 3 phase, 4 wire operation complete as required - 1 Set. Indicating lamps for ON/OFF/TRIP complete as required - 3 Nos. Indicating lamps for R/Y/B indication complete as required - 3 Nos. Aux Contacts, Controls, MCBs (SP/DP), protection relays etc. complete as required - 1 Lot. BUSBARS: High conductivity electrolytic quality aluminium alloy Bus Bars. OUTGOING: 4 (Four) pole Moulded Case Circuit Breaker 100 Amp (25 kA), with adjustable setting for O/L, S/C fault complete with spreader, extended rotary handle as required - 2 Set. 4 (Four) pole Moulded Case Circuit Breaker 63 Amp (25 kA), with adjustable setting for O/L, S/C fault complete with spreader, extended rotary handle as required - 4 Set. Class 1.0 Digital Ammeter with Selector switch - 6 Sets Class 1.0 Digital Voltmeter (range 0 - 500V) with Selector switch - 6 Sets Indicating lamps for ON/OFF/TRIP complete as required - 18 Nos. Aux Contacts, Controls, MCBs (SP/DP), CTs & PTs, protection relays etc. complete as required - 1 Lot. Others: Empty compartment as spare for future load addition in the Panel - 2 Nos. Side Cable alley to be considered for Entry of Cables. Note: 1. All breaking capacities shall be ICU=ICS. 2. Any other component not specifically mentioned but are required for the safe & reliable operation of panel shall be deemed to be inclusive in the item. Nothing extra on any account shall be paid in this item. 3. Control wiring should be with minimum 2.5 sq mm size FRLS wires/cable.

Supply, Installation, testing and commissioning of ceiling suspended air cooled inverter type Ductable split unit of capacity 8.5 TR suitable for operation on R 32/R-410A /R-407 Green refrigerant with micro-processor based control, high efficiency Scroll type compressor hermetically sealed complete with automatic capacity, safety switches, lubrication system, air cooled condenser with axial type condenser fan suitable to work on 400V +/- 10%, 3 Phase, 50Hz AC power supply and BMS compatible complete hanging supports, base channel, vibration pad etc. complete as required as per the attached SCC & as per the direction of Engineer-in-Charge.

Supply & filling of Green Refrigerant (R 32/R-410A /R-407 or equivalent) for AC units complete as required as per the Direction of Engineer-in-Charge.

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft/hard drawn copper refrigerant piping complete with fittings, with suitable adjustable ring type hanger supports, jointing/brazing including accessories, insulated with XLPE Class-O tubular insulation/with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of 19 mm thick insulation as given below for Suction and Liquid lines, all accessories as per specifications etc. as required : 15.86 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft/hard drawn copper refrigerant piping complete with fittings, with suitable adjustable ring type hanger supports, jointing/brazing including accessories, insulated with XLPE Class-O tubular insulation/with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of 19 mm thick insulation as given below for Suction and Liquid lines, all accessories as per specifications etc. as required : 28.58 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm

Supply and laying of 25 mm dia PVC condensate pipe for drain water piping with 9 mm thick (Class "O") closed cell Elastomeric Nitrile Rubber Insulation i/c providing necessary joints and supports complete as required as per the Direction of Engineer-in-Charge.

Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular ducting complete with neoprene rubber gaskets, elbows, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required as per the Direction of Engineer-in-Charge. 0.80 mm

Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular ducting complete with neoprene rubber gaskets, elbows, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required as per the Direction of Engineer-in-Charge. 0.63 mm

Providing and fixing fire retardant nonporous double layer flexible canvas connection for ductable split ACs as per site complete etc. as per direction and complete satisfaction of EIC.