STERO SD3 DOOR-TYPE DISHWASHER |
11
INSTALLATION
(continued)
Dishwasher With Electric Booster (Separately Connected)
Single phase machines with an electric booster require two separate connections, one for the booster and the
other for the dishwasher (including motor, controls and tank heat). For single-phase machines, all power sup-
ply connections are made to terminal blocks (Figure 10). The single phase dishwasher is connected to terminal
block 1TB in the controls area. The single phase booster is connected to terminal block 2TB in the controls area.
If the machine is three phase, the electrical connection for the dishwasher is made to the contactor 2CON in
the controls area. The electrical connection for the three phase booster is made to the contactor 3CON in the
controls area (Figure 11).
EQUIPMENT 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.
Exhaust Fan Control
The exhaust fan control feature is standard on model SD3. The exhaust fan control relay provides switch
contacts only and does not provide power to the exhaust fan motor. The rating for an exhaust fan control
relay connected to terminals VFC1 and VFC2 is 1.5 Amps at 240 Volts maximum. When the dishwasher is
connected to the exhaust fan, the exhaust fan is switched on when the dishwasher is on, and off when the
dishwasher is off.
Remote Booster Control
The booster control feature is standard on model SD3. The load rating for remote booster control connections
to BSTR1 and BSTR2 is 0.1 Amp. at 120 Volts maximum. The booster control provides a control signal only and
does not provide power to the remote booster. When a remote booster is connected to the dishwasher, the
booster is on when the dishwasher is on and off when the dishwasher is off.
Figure 10
Figure 11
