Wiring Diagrams

This section describes the wirings of fan coil system and DI interface.

Note: After wiring, it is necessary to select the correct system type or enable DI settings via ToolBox or downlink commands.

Fan Coil System Wirings

WT303

Figure 1. 2-pipe, 2-wire On/Off valve, 3 speed fan

Figure 2. 2-pipe, 3-wire On/Off valve, 3 speed fan

Figure 3. 4-pipe, 2-wire On/Off valve, 3 speed fan

WT304

Figure 4. 2-pipe, 0-10V valve, 3 speed fan

Figure 5. 4-pipe, 0-10V valve, 3 speed fan

Figure 6. 2-pipe, 2-wire On/Off valve, EC fan

Figure 7. 4-pipe, 2-wire On/Off valve, EC fan

Figure 8. 2-pipe, 3-wire On/Off valve, EC fan

Figure 9. 2-pipe, 0-10V valve, EC fan

DI Wiring