10
| STERO SD3 DOOR-TYPE DISHWASHER
INSTALLATION
(continued)
ELECTRICAL CONNECTIONS
Electrical and grounding connections must comply with the applicable portions of
the National Electrical Code, NFPA 70 (latest edition) and / or other local electrical codes.
Disconnect the electrical power to the machine (both dishwasher and booster if
applicable) and follow lockout / tagout procedures. Be sure all circuits are disconnected.
Refer to the wiring diagram attached inside the front trim panel and to the machine data plate for service size
requirements when connecting the dishwasher. Refer to Electrical Data, below.
To access the controls area, remove the right side panel, remove the front panel and open the control panel
door. The dishwasher electrical service connection can be made through the 1
3
⁄
32
" diameter hole for
3
⁄
4
"trade
size conduit located on the right side at the rear of the machine. By removing a knockout, this hole can be
enlarged to 1
3
⁄
8
" diameter for 1" trade size conduit, if required.
ELECTRICAL DATA
Models
Volts / Hz / Ph
Tank Heat
Minimum Circuit Ampacity
Maximum Protective Device
AMPS
Dishwasher
ONLY
Optional 8.5 KW Electric Booster
8.5 KW
Booster
ONLY
Optional Single Point
Electrical Connection
3 Phase Only
Dishwasher and Booster
SD3
208 - 240 / 60 / 1
Electric
50
50
N/A
208 - 240 / 60 / 3
Electric
30
30
60
480 / 60 / 3
Electric
15
15
30
Compiled in accordance with the national electrical code, NFPA 70 (latest edition).
A fused disconnect switch or circuit breaker (customer supplied) must be installed in the electrical service line(s)
supplying this dishwasher and should meet the requirements of your local electrical code.
Dishwasher without Electric Booster
For single-phase machines, power supply connections are made to terminal blocks. For three-phase machines
connections are made to contactor lugs. The machine must be grounded according to electrical code(s); a
grounding lug is provided in the controls area.
Direction of Rotation of Pump
This procedure applies to 3 phase machines upon initial set up or when the pump has been replaced.
Turn on the machine and let it finish the startup making sure there is water in the tank. Start a wash cycle and
after motor starts, carefully insert a plastic wire tie into the back housing of the motor so that it touches the
fan blades. Look for an arrow on the pump that shows the direction of rotation. If the plastic wire tie is pushed
towards the opposite direction of the arrow then the pump
direction needs to be reversed.
CAUTION:
Make sure the power is removed from the
machine before changing wires.
To reverse the direction of the motor, swap the positions of
two of the 3 phase wires from the machine’s power supply.
Check again the direction of rotation after the adjustment
using the method described above.
Figure 9
MOTOR SHAFT
