Section 3: Electrical 3033-003B
3-12 Concordia Xpress Technical Support Manual
2900-300B
Single Phase
Equipped with 4 prong 220 Volt Plug NEMA L1430P
Machine Operating Voltage
The minimum electrical requirements must be met to ensure proper
operation of machine:
200-240Vac
Single Phase: 30amp dedicated circuit
NEMA L14-30 receptacle, a four wire circuit with a neutral leg
(U.S. machines are typically wired for single-phase operation)
AC Voltage
Three components in the Xpress operate on AC voltage:
P Water Pump Motor
E Heating Elements
G Grinders
DC Voltage
All remaining components operate on DC voltage. All control voltage is
DC.
Valves
All water and steam valves in the Xpress function using a negative
switching circuit. Voltage is always present at the component. The drives
for the valves are located on CPU board. The CPU provides the ground
to close the circuit and energize the valve.
Diodes
Diodes are used throughout the Xpress electrical connections to control
the flow of electricity and eliminate electric noise from feeding back into
the circuitry.
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