Twin-Star International 33EB304GRS - Manual (Page 8)

JUNCTION BOX
1. Locate the voltage selector switch inside
the exhaust panel on the top left hand
corner of the unit. (see figure 2 on page 3)
2. Confirm the switch is set to 240 volt
configuration (230 volt is printed
on switch).
3. Loosen the screw securing the junction
box cover and remove the cover.
4. Remove the knockouts (if necessary) or
use a cable clamp (not provided).
5. Pull out the four wires marked L1, L2,
N, and G.
6. Connect the black L1 wire from the unit to
the black L1 from the power supply.
7. Connect the red L2 wire from the unit to
the red L2 from the power supply.
8. Connect the white N wire from the unit to
the white N wire from the power supply.
9. Connect the green ground wire from the
unit to the ground from the power supply.
10. Ensure that all connections are tight.
11. Insert all the wiring back into the unit and
secure with a cable clamp.
Section 6: 240 Volt Installation Instructions
Important
• The unit is factory configured for 120 volt
operation. You must set the voltage
selection switch to 240 volts (230 volt is
printed on the switch.
• Use 3 conductor wire with ground (4 wires
total) from the power supply (breaker
panel) to the junction box on the unit.
• All wiring must be completed prior to
installing the unit.
• Ensure that the voltage selector switch is
in the proper position for the required
supply voltage prior to connecting the unit
to the power supply.
Junction Box Locator: Figure 8
E-8