Ariel Rios Phase 2 Modernization

Washington, D.C.
Owner: U.S. General Services Administration
Architect: RTKL
Engineer: RTKL
Contract Value: $14.2 Million

The renovation of the Ariel Rios building included the modernization of the plumbing, heating, ventilation and air conditioning system within the North Phase.  This project entailed the demolition of existing systems and the installation of new work without interruption to services in the occupied portions of the basement and first floors.  The additional occupancy phasing requirements of the schedule, starting with the seventh floor, meant the new plumbing and HVAC systems had to be operational on the occupied floors while system installation continued on the lower floors.

The HVAC work involved the installation of eight field erected air handling systems, forty-two fans, seven self contained units, one split system, eight hundred and forty fan coil units, four hundred variable air volume boxes, twenty pumps, and 500,000 pounds of sheetmetal.  The heating system used a high pressure steam line which is reduced to low pressure at several steam stations.  The steam is then run through steam to hot water converters with the resulting hot water distributed to risers serving fan coil units on each floor.