Archaeological Survey Of India Tender

Air-condition of 1st Floor of Metcalfe Hall, Kolkata, West Bengal.

1. Supply , installation ,testing commissioning of top discharge type VRF / VRV air conditioning system,suitable for 415V - 3 Ph - 50 Hz AC supply, comprising of modular type high efficiency all Inverter technology based hermetically sealed Scroll compressors suitable for R410a / R407c refrigerant (Pre charged) without door refnet joints, Air cooled propeller type condenser fan with DC motor & protective coated fins, interconnecting piping, suction line insulation etc., Micro-processor control panel suitable for automatic operation, High speed inverter control, oil control mechanism incorporating all safety functions including unit mounted starter panel complete with IP-55 protection consisting of power disconnecting switches with fuses, starters for compressor motors, under/ over voltage trip, single phase preventers, communication card which can accept 4-20 mA or 2-10 Vdc analog signal etc as reqd. Including necessary pressure testing, Leak testing etc. as required :- (All components shall be mounted on welded steel base frame, structural steel profiles/ panels with primary coat and finished with acrylic paint)

1. a) Outdoor Unit (ODU) ,Nominal capacity not less than 46 HP ( consists of 3 nos. all Inverter technology based hermetically sealed Scroll compressors)