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| Clay Center Community Middle School in Clay Center Kansas had a failing control system that needed higher and higher dollar amounts from the district to keep it running. This failing D.D.C. system had the district in a bind, the in-house maintenance man was forced to respond to comfort complaints by manually turning dampers, and wiring fans on and off. Many times, by the time he got one solved, one he had just fixed began to complain again. The district's insurance was also having problems with the way some of the larger mechanical equipment was being (or not, as the case may be) controlled. The district needed a solution, and they needed it fast. EPM agreed to investigate the extent of the failures and issue a report to the district. The report noted broken inlet guide vane assemblies, bad or missing VAV damper actuators, broken control wires, missing and clogged filters, failing pumps, chilled water flow switch, and the list went on. EPM gave the district a proposal that covered the installation of a CTC system, and scoped a repair/replacement agreement in order to bring the building back to full operational status. The board agreed to hire EPM, Inc. The method of installation was governed by the occupants of the zones, the teachers. As the installation crew learned of a heating or cooling problem from the teachers, they adjusted their schedule immediately in order to correct the comfort problem. In short, one by one the zones were restored to their original specifications, in a manner which most effectively solved complaints. The installation is complete and C.C.C.M.S. has a fully operation CTC (computerized temperature control) system certified by EPM's Senior Engineer, Jim Johnson. Operations training with school personnel was conducted and service training in our engineering office is pending. There is every reason to believe the district will realize the estimated consumption savings of 24.16%,and internal rate of return of 29.87%. The payback is estimated at 36 months. |
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