Since the heat dissipation for PV inverter is via forced air cooling utilizing a
built-in fan, it is required to keep the PV inverter well ventilated on both the front
and rear sides, avoid it being overloaded or operated in an excessively high
ambient temperature over a long period of time, as well as ensure that there is at
least a 15cm gap all around the PV inverter.
Smart HF Series
Single-phase
PV
Off
-
grid
Inverter
--
I
nstallation
and
Wiring
25/36
PROFESSIONAL
INNOVATIVE
BRANDING
SERVICE
24/36
PROFESSIONAL
INNOVATIVE
BRANDING
SERVICE
4. Ambient Parameters:
Operating temperature: - 20
℃
to 40
℃
with a load ratio decreased by 3% for
every 1
℃
drop in the temperature.
Relative humidity: ≤ 95 % with no condensation.
5. Installation Tools:
P e r c u s s i o n d r i l l / h a m m e r / a d j u s t a b l e w r e n c h / s m a l l s l o t - h e a d
screwdriver/grand cross screwdriver/stripping pliers/multimeter.
Smart HF Series
Single-phase
PV
Off
-
grid
Inverter
--
I
nstallation
and
Wiring
Warning
In order to ensure the personal safety and the normal work of inverter, please
strictly carry out the items described as follows:
1.
All the input and output ends of inverter need to be installed with an AC/DC
circuit breaker at each end. The table below shows the recommended selection
criteria of circuit breaker:
AC Input End
AC Output End
PV Input End
Battery Input End
Voltage Specification Current Specification
300Vac<Vac
300Vac<Vac
150Vdc<Vdc
100Vdc<Vdc
25A<I<32A
25A<I<32A
50A<I
100A<I
2. Pay attention to the surface of inverter as it is likely that the temperature
remain high after the power supply of inverter is being switched off for a period of
time.
3. If maintenance for inverter is required, please contact the authorized
system installation & maintenance personnel in your local area.
4. The PV array of inverter has a DC voltage of up to 95V and AC voltage of up
to 260V. It is prohibited to touch a charged terminal directly, and please use a
ultimeter to measure the AC voltage before installation or maintenance so as to
ensure that all the AC/DC sides are not being charged.
Installation Location
Installation of PV inverter should take into account the self-weight of the
i n v e r t e r, a n d a v o i d a p r o l o n g u s e o f t h e i n v e r t e r i n a h o t a n d h u m i d
environment.The PV inverter should be installed indoors (with an IP20 protection
class) and at a location out of reach of children to avoid potential danger.
Installation Procedure
1. Rack-mounted inverter installation steps:
1.1 Please prepare the following items from the packing box prior to
installation: inverter (1 unit), rack handle components (2 units), and 6mm M3
screws (6 pcs).
1.2 Mount the rack handle components on the front panel of inverter with
each side of the panel securely locked with 3 x M3 screws.
1.3 After the installation is completed, the rack-mounted inverter can be
i n s t a l l e d o n a s t a n d a r d c o m m u n i c a t i o n c a b i n e t i n a c c o r d a n c e w i t h t h e
requirements set forth for the cabinet. Alternatively, the inverter can also be
installed on a horizontal platform with that all the predescribed important
instructions and position requirements are fulfilled.
1.4 Schematic of cable connection for a rack-mounted inverter is shown in
Figure 4.1 below:
Figure 4.1: Schematic of cable connection for rack-mounted inverter
A
B
C
Description of Cable Connection
:
(A
)
AC Input and Output Terminals: Uses a slot-head screwdriver to connect
according to marking the live and neutral wires of mains electricity, respectively,
on the 1st and the 2nd positions from the left. The ground wire is connected to the
independent grounding screw in the lower right corner. The 3rd, 4th and 5th
positions are connected with the AC output ground, live and neutral wires,
respectively. It is suggested to use a standard 4mm
²
or 10AWG wire and that the
wire ends using for connection are stripped off 5mm - 8mm.
(B
)
PV Input Terminals (PV+, PV-): Uses a slot-head screwdriver to connect
according to marking the parallely connected solar panel's total output wires