The 23-story poured concrete structure is 270,000-sq.-ft., with over 750 tons of ac capacity.


The Design/Build Group of C&R Mechanical Company recently completed the hvac design and installation of a new high rise luxury condominium and hotel building in Clayton, Mo. The new "Clayton on the Park" building is a 270,000-sq.-ft., 23-story poured concrete structure with more than 750 tons of ac capacity.

This project utilizes a water source heat pump system which was selected for proven long term energy efficiency as it produces consistently low operating costs. The very nature of the system and the 360 individual WSHP units used throughout the building required a major piping activity for the project, as well as duct work.

The mechanical system was engineered, designed, specified and installed by C&R Mechanical. C&R developed all shop and coordination drawings and employed value engineering throughout this project.

According to Dave Maassen, vice president of special projects at C&R Mechanical, "With the poured concrete structure and the major piping activity required, the challenge on this project was to make this unique hvac installation happen on schedule. The general contractor poured a floor a week which demanded the critical coordination of deliveries and installation. The excellent working relationship between the C&R and McCarthy field crews made this job go very easy."

Conrad Properties is the owner/developer. McCarthy was the general contractor, and Louis R. Sauer & Associates was the architect.