Dc Connections From The Pv Array - Solectria Renewables PVI 14TL Installation And Operation Manual

Installation and Operation Manual (Rev B)

5. DC Connections from the PV Array

WARNING: All wiring connections at the inverter must be performed with the building
AC source circuit panel/breaker off and the PV module strings disconnected. AC and DC
disconnect switches at the inverter must also remain of during termination.
WARNING: All electrical wiring must be done by electrically qualified personal in
accordance to local and national electrical code.
WARNING: Before connecting the DC conductors of the PV array to the inverter, verify
the polarity of the conductors.
WARNING: Open all fuse holders and remove fuses before wiring. Verify correct polarity
and voltage before installing fuses.
WARNING: Before connecting the DC conductors of the PV array to the inverter fuse
terminal or bypass them, verify that the DC voltage is less than 600Vdc in all conditions.
DC voltages over 600V will damage the inverter. Configure the array such that the open
circuit voltage will never exceeds 600 Vdc. Warranty is voided if more than 600Vdc is
applied to the DC section of the inverter
WARNING: Fuses in the inverter's fused combiner must only be replaced with the same
type and rating fuses as originally installed.
A maximum of 16 total DC conductors (8 positive & 8 negative) can be connected and fused at
15A as shown in Figure 5.1 below:
DC input 2 MPPTs working independently
8 strings
Figure 5.1 String Configurations
18
1 MPPT working alone Wires
10AWG