Birdville ISD in Haltom City, TX began constructing a new elementary school on an existing school site, while classes were still in session. This unique situation created several logistical challenges, especially with the original facility’s geothermal WSHP system. During construction of the new facility, it was discovered that the well fields for the HVAC WSHP system were not in the places indicated on the original building plans, which caused the fields to become compromised by construction. In order to avoid costly repairs on the well field, HTS worked with Birdville ISD through Choice Partners COOP to find a solution in building a mobile WSHP plant.
HTS was chosen as the basis of design for the project and was able to provide a temporary WSHP plant in the short six-week time frame required for construction. The mobile plant included a stock air-cooled chiller AGZ035, a condensing boiler, a 500-gallon chilled water buffer tank, and two pumps with Danfoss VFDs. The system was tied together with HTS controls and the plant was situated on a Big Tex Trailer to allow for mobility.