Center for the Built Environment

This document is intended to provide detailed documentation of design and operating instructions for aversion of the PWMS dedicated to supporting commissioning of underfloor air distribution (UFAD)systems. The specifications for this device were based on requirements for commissioning the New York(NY) Times Building in New York City. The following sections focus on the design and construction ofthe cart and how to operate its software tools to conduct the various tests according to NY Timesrequirements. However, the built-in capabilities can be easily applied to performance evaluation andcommissioning for other types of UFAD systems as well as advanced systems with non-symmetricaltemperature environments. Each section contains background material that describes hardware andsoftware details. Other software and hardware components associated with this system and UFADcommissioning procedures can be found in Appendix A. Appendix B describes how a portable thermalplume generator can be made for testing in pre-occupancy conditions.