14
2.0 INSTALLATION
©2000 Xantrex/Trace Engineering
Wiring:
(continued)
AC Wiring
AC HOT wiring is connected to the ST units L1 and L2 breakers, the ground wire connects to
the GROUND bar. All AC wiring is located in the lower section of the ST unit.
WARNING: AC UTILITY WIRING TO THE ST UNIT IS PERFORMED DIRECTLY AT THE MAIN
BREAKER PANEL. THIS SHOULD BE DONE ONLY BY A QUALIFIED UTILITY INSTALLER OR
ELECTRICIAN WITH PRIOR UTILITY COMPANY APPROVAL.
NOTE: The ST unit can be connected to a single bidirectional meter, or to dual meters, where one
meter indicates power used the second meter indicates power sold (power supplied back to the
utility). The installer and utility must determine the proper components to install.
WARNING: BEFORE WIRING THE ST UNIT, ENSURE THE MAIN 120/240 VOLT BREAKER IN
THE MAIN UTILITY BREAKER BOX IS SWITCHED OFF. SWITCH THIS BREAKER TO ON ONLY
AFTER ALL WIRING IS COMPLETED AS INSTRUCTED IN THE PROCEDURES.
1.
Run conduit from the main utility breaker panel to the lower section of the ST unit. Run the
two HOT wires (L1 and L2) and ground through the conduit and into the ST units lower
section.
2.
Install a dual 15 amp, ganged circuit breaker in the main utility breaker panel.
3.
Connect the L1 HOT wire (black) from the 15 amp, double-pole breaker installed in the main
breaker panel, to the breaker labeled L1 in the ST unit. Refer to Figure 11A for ST1500 and
ST2500, or Figure 11B for ST1000 and ST2000 models.
4.
Connect the L2 HOT wire (red) from the remaining 15 amp, double-pole breaker installed in
the main breaker panel, to the breaker labeled L2 in the ST unit.
5.
Connect the ground wire (green or bare copper) from the GROUND bar in the main breaker
panel, to the GROUND bar in the lower section of the ST unit.
6.
Ensure all connections are correctly wired and properly torqued.
7.
Torque wires according to the following table.
Table 5
Wire Torque Values
Wire Size
Torque (in-lb)
14 -10 AWG
35
8 AWG
40
6 AWG
45
975-0003-D-003
