114201I – System Installation Manual
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7. The input circuit breaker in the input service panel provides the means for disconnecting AC
to the unit. Only authorized persons shall be able to disconnect AC to the unit [see NEC 700-20
and 700-21(CEC Section 46)]. If you are using the input circuit breaker to disconnect AC, you
must make sure that only authorized persons have control of the circuit breaker panel to meet
the requirements of NEC 700-20 (CEC Section 46).
8
. Read the following caution before removing conduit knockouts.
CAUTION
To prevent electrical shock or damage to your equipment, the Installation Switch (S1), the Main
AC Input Circuit Breaker (CB1), and the circuit breaker at the input service panel should all be
turned off. The Main DC Battery Fuse and the external DC Disconnect Fuse(s) (if you have
one) should be removed.
9.
Remove knockouts for AC Input and AC Output in the top or left side of the system. AC input
conductors and AC output conductors must be installed in separate conduits, and emergency
and non-emergency output circuits must be installed in separate conduits.
CAUTION
Do not drill the cabinet; drill filings may damage the unit and keep it from operating. If you
need larger knockouts, use a chassis punch to punch out the appropriate knockout. Do not
create additional knockouts
.
10. Install the conduit. You must run the AC input service conductors and AC output conductors
through separate conduits. Emergency output conductors and non-emergency output conductors
must also be run through separate conduits. Emergency output circuits shall be installed in
dedicated conduit systems and not shared with other electrical circuits as described in NEC 700-
9(b) [CEC Section 47-108].
The next step explains where to make the AC connections to the system.
INSTALLING AC INPUT WIRES:
11. Connect AC utility from the service panel to the system’s terminal block labeled
“INPUT”
.
Phasing must be clockwise Rotation
– i.e. Phase B lags Phase A.
Connect each Line (hot) wire to each of the input block positions marked
“Line”
, connect the
Neutral (common) wire to the input block marked
“Neutral”
and the ground wire to the
compression lug next to the input terminal block.
INSTALLING AC OUTPUT WIRES:
**IF EXTERNAL MAINTENANCE BYPASS IS REQUIRED, SEE DEVIATION DRAWING FOR
WIRING OF LOAD OUTPUT.
12. Connecting load wires without system distribution circuit breakers – connect load wires to the
system’s terminal block labeled
“OUTPUT”
. Repeat as in step 11.
13. Connecting load wires with distribution circuit breakers – connect load wires directly to the
circuit breakers and the neutral wires to the neutral bar.
