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Installation
Electrical Connections - UH330 ADA with Built-in Booster
1PH and 3PH Wiring Diagrams
ALL DISHWASHERS ARE SHIPPED FROM THE FACTORY WIRED FOR SINGLE PHASE
IF YOU ARE CONVERTING A SINGLE PHASE MACHINE TO THREE PHASE BE SURE
TO FOLLOW THE BOOSTER WIRING INSTRUCTIONS ON PAGES 71-72.
Refer to the connection diagrams below to connect main incoming power to the dishwasher.
THREE PHASE POWER CONNECTION
Models UH330 ADA
GRD
L1
208-230
VAC
208-230 VAC
! VERY IMPORTANT !
THE ELECTRICAL POWER MUST BE A
4-WIRE PLUS GROUND SUPPLY WHICH
INCLUDES A CURRENT CARRYING NEUTRAL.
HOW TO CONNECT 3 PHASE POWER
1. Check the data plate on the front of the
dishwasher for the phase of the machine.
If the data plate says the machine is 3 Phase,
.
then connect a 3 PH power supply.
2. Remove the lower access panel.
3. Pull power connection box forward and out.
4. The Main Terminal Block has terminals for
L1, L2, L3, Neutral and Ground.
5. Connect ground, then connect
L1, L2, L3 to 208-230VAC.
6. Connect a current carrying neutral to N.
7. Main power connections are complete.
2
! ATTENTION !
OPERATION UNLESS SPECIFIED AT THE TIME OF ORDER.
L2
L3
115VAC
208-230
VAC
SINGLE PHASE POWER CONNECTION
Models UH330 ADA
GRD
N
L1
208-230
VAC
! VERY IMPORTANT !
THE ELECTRICAL POWER MUST BE A
3-WIRE PLUS GROUND SUPPLY WHICH
INCLUDES A CURRENT CARRYING NEUTRAL.
HOW TO CONNECT 1 PHASE POWER
1. Check the data plate on the front of the
dishwasher for the phase of the machine.
If the data plate says the machine is 1 Phase,
.
then connect a 1 PH power supply.
2. Remove the lower access panel.
3. Pull power connection box forward and out.
4. The Main Terminal Block has connections
for L1, L2, L3, Neutral and Ground.
5. Connect ground, then connect
L1, L2 to 208-230VAC.
6. Connect a current carrying neutral to N.
DO NOT CONNECT POWER TO L3.
7. Main Power connections are complete.
Do not connect power to L3
L2
L3
N
115VAC
0 VAC
0 VAC
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