Concordia XPRESS - Page 44

Section 3: Electrical 3033-003B
3-16 Concordia Xpress Technical Support Manual
2900-300B
XPRESS 6 Equipped with 4 prong 208 volt plug
L1 120VAC
TO NEUTRAL
NEMA
L1430-R
L2 120VAC
GROUND
NEUTRAL
TO NEUTRAL
Power into AC Components
 Two legs of 110Vac travel down AC board on traces #13 and
#15 and are tapped and routed, prior to the fuses, to the main
power relay (or contactor).
 When power switch is turned “ON,” DC control voltage becomes
available and closes the relays.
 AC voltage travels through main power relay out traces #5 and
#7 directly to the solid state relays for steam and water tank
heating elements.
 Power is also tapped and routed from lower AC board to the
middle AC board through JP3 (power travels through fuses, and
out JP1, supplying AC power to the pump and grinders).
WARNING: Never insert or remove the AC drawer with the power
switch turned on. Inserting the drawer with the machine powered causes
arcing across the copper traces and will damage the board.
Setting the DC Jumper Plug (J1)

1. Measure the source voltage at the NEMA L1430-R receptacle.
2. Remove electrical enclosure cover to access DC power supply
board.
CAUTION: ESD protection required.
3. Remove the DC power supply board using the white ejector
lever.
4. Configure and insert J1 into jumper connection located on DC
power supply board.
5. Use the voltage table below to set the jumper plug to the correct
measured source voltage.
Connections
Voltage
L1 to Ground
110Vac -120vac
L2 to Ground
110Vac – 120Vac
L1 to Neutral
110Vac – 120Vac
L2 to Neutral
110Vac – 120Vac
L1 to L2
200Vac – 240Vac
Ground to Neutral
0Vac
Confirming Receptacle Voltages
Plug and Receptacle
50-60Hz
200 VAC
208 VAC
220-240 VAC
L2
200 VAC
208 VAC
220-240 VAC
L2
J1
Jumper Plug is located on DC Power Supply Board