Johnson Controls TEC3000 Series - User Interface and Operational Features; USB Port for Firmware and Backups

Figure 14: Floating control two-pipe heating and cooling hydronic valve control fan coil
application
Figure 15: Floating control two-pipe heating and cooling hydronic valve control with
changeover fan coil application
Figure 16: Floating control (on/off two-pipe and four-pipe fan coil applications)
TEC3000 Series On/Off or Floating Fan Coil Thermostats Installation Guide16