American Water Heater 120 series, Инструкция по эксплуатации, Страница: 17 / 52

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CONVERSION TO SINGLE PHASE
When the heater is shipped for connection to a three-phase
electrical service, it may be connected to a single-phase electrical
service of the same voltage by:
1. Disconnect blue wires and yellow wires from terminal L3.
2. Reconnect all blue wires to terminal L1 (with black wires).
3. Reconnect all yellow wires to terminal L2 (with red wires).
4. Connect incoming power to terminals L1 and L2.
CONVERSION TO THREE PHASE
When heater is shipped for connection to a single-phase electrical
service, it may be connected to a three-phase electrical service
of the same voltage by:
1. Disconnect blue wires from terminal L1.
2. Disconnect yellow wires from terminal L2.
3. Reconnect all blue wires and yellow wires to terminal L3.
4. Connect incoming power to terminals L1, L2, and L3.
WIRING DIAGRAMS
Figure 10. Nine-Element Single- and Three-Phase Power Circuits