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Electrical Connections (continued)
For Models 201HT, 401HT, and 501HT beginning with S/N 14236 and above
Dishwashers shipped from the factory wired for 1 phase operation can be changed to 3 phase
operation by following the procedure below.
1. Disconnect the main incoming power at the main service disconnect breaker or switch.
2. Remove the lower front access panel,
3. Remove the booster heater element cover.
4. Locate the 1H3 booster heater wire stored on the right-side of the booster tank.
5. Disconnect the existing booster heater wires and change the booster heater element
jumpers as shown in the illustration below
6. Connect wires 1H1, 1H2, and 1H3 as shown.
7. Re-install the booster heater cover.
8. A replacement 3PH data plate is stowed on the back of the lower front access panel.
Remove the existing 1PH data plate on the front of the panel with the new 3PH data plate.
Discard the 1PH data plate.
9. Contact a qualied electrician to change the incoming service power to 3PH. An illustration
of the power connections on the Main Terminal Block is on the next page.
WARNING:
Electrocution or serious injury may result when working on an
energized circuit.
Disconnect power at the main breaker or service disconnect
switch before working on the circuit.
Lock-out and tag the breaker to indicate that work is being
performed on the circuit.
1H1
1H2
1H3
Booster Heater
Connected for 1PH
1H1
Booster Heater
Connected for 3PH
1H2
1H3
Wire not
connected
Booster heater element connections shown for 1 phase and 3 phase operation.
Booster Heater Element
Field Conversion from Single to Three Phase Operation
Installation