PLBG 256 (3 credits) Plumbing Design IV: Designing Hydronic Heating Systems Designing and sizing hydronic heating systems is taught. Includes the calculation of heat loss. Prerequisite: PLBG 156 PLBG 261 (4 credits) Plumbing Installation V: Installing Hydronic Heating Systems Students learn the proper installation of residential and commercial hot water heating systems. Prerequisite: PLBG 115 and 120 PLBG 266 (2 credits) Plumbing Service III: Servicing Hydronic Heating Systems Heating service, including repair of hot water circulation problems, combustion testing, oil burner, and gas burner repair, boiler clean-up, and system troubleshooting are covered. Prerequisite: PLBG 115 and 120 PLBG 271 (2 credits) Plumbing Installation VI Includes hands-on experience and training in the installation of plumbing fixtures, appliances, and the finished piping in a permanent structure. Work is done on the housing project and other appropriate projects around the campus. Prerequisite: PLBG 211 Academic Catalog 89