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2–16 975-0053-01-01
4. Connect the negative (–) wire from the PV array to the PV MINUS 1
(leftmost) terminal. Check that the wire is in the proper location and
tighten the screw.
5. Repeat this procedure for each PV array circuit, connecting the #2 PV
positive wire to the terminal labeled PV PLUS 2, and so on.
The PV arrays do not have to connect in the order marked on the
board (this is just for reference). All PV array positives on the
combiner board are joined together AFTER the fuse.
6. Repeat this procedure for each PV array circuit, connecting the #2 PV
negative wire to the PV MINUS 2 terminal, and so on.
The PV arrays do not have to connect in the order marked on the
board (this is just for reference). All PV array negatives on the
combiner board are electrically tied together.
7. Torque wires according to the following values.
Connecting AC Wiring
AC HOT wiring is connected to the Sun Tie XR’s L1 and L2 breakers,
and the ground wire connects to the ground bar. All AC wiring is located
in the lower section of the Sun Tie XR.
Wire Size (AWG) Torque (in-lb)
14–10 AWG 35
8 AWG 40
4–6 AWG 45
2–1/0 AWG 50
WARNING: SHOCK HAZARD
AC utility wiring to the Sun Tie XR 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 Sun Tie XR can be connected to a single bidirectional
meter, or to dual meters, where one meter indicates power used and the
second meter indicates power sold (power supplied back to the utility).
The installer and utility must determine the proper components to
install.