Retrofitting and upgrading of air conditioning system atWisma Warisan Arkib Negara Malaysia, Jalan Duta Kuala Lumpur. Scope of works includes replacing 2 nos. of 230 RT and 2 nos. of 125 RT water cooled chillers, 17 nos. of AHUs, cooling towers, chilled and condenser water pumps, piping system with related ancillaries and Building Automation System (BAS).