Conversion To Single Phase; Conversion To Three Phase - A.O. Smith 52 Instruction Manual

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 from terminal L2.
2. Connect all blue wires to terminal L1 (with black wires).
3. Disconnect all red wires from terminal L3.
4. Connect all red wires to terminal L2 (with yellow wires).
5. Connect incoming power to terminals L1 and L2.
WIRING DIAGRAMS
Figure 9. Nine Elements - Single And Three Phase

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 red wires from terminal L2.
3. Connect all blue wires to terminal L2 (with yellow wires).
4. Connect red wires to terminal L3.
5. Connect incoming power to terminals L1, L2 and L3.
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