10
Connect PV strings
CAUTION
: As the PV string generates power as long as illumination exists, a
circuit breaker with 60A rating shall be installed as shown below, so that PV string
can be disconnected when needed (e.g. regular maintenance).
Please follow below step to implement PV module connection:
WARNING!
All wiring shall be performed by a qualified technician.
WARNING!
Please do not use PV panel which requires one terminal
connected to ground (e.g. thin-film panel).
Step 1
- Disconnect the unit from the battery either by turning off the battery
breaker or removing the battery cables from the battery. Note that turning
the unit off does not disconnect the batteries.
Step 2
- Remove bottom cover & knock off “PV” hole.
Step 3
- Thread the wires through “PV” hole on bottom cover, and then connect
the PV string wires to PV input terminals. Check the polarity of wires
before connecting to terminals.
Step 4
- Fix bottom cover with two screws.
Step 5
- Turn on battery breaker or connect battery cable.
The recommended wire gauge and fixing torque are as below,
Model Number
PV Input Wire Gauge
Torque
SMAX
3000
10 AWG
1.2~1.8 Nm
SMAX 5000
10 AWG
1.2~1.8 Nm
