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Growatt SPF 3000TL LVM-ES - PV Connection; PV Module Selection and Wiring Steps

Growatt SPF 3000TL LVM-ES
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10
CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it’s required
to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a
short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check
with manufacturer of air conditioner that if it’s equipped with time-delay function before installation. Otherwise,
this off grid solar inverter will trig overload fault and cut off output to protect your appliance but sometimes it
still causes internal damage to the air conditioner.
PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It’ very important for system safety and efficient operation to use appropriate cable for PV module
connection. To reduce risk of injury, please use the proper recommended cable size as below.
Model
Wire Size
Torque value
SPF 3000TL LVM-ES
1 * 12 AWG
1.2-1.6 Nm
PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1.
Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2.
Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.
Please follow below steps to implement PV module connection:
1.
Remove insulation sleeve 10 mm for positive and negative conductors.
2.
Check correct polarity of connection cable from PV modules and PV input connectors. Then, connect positive
pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of connection
cable to negative pole (-) of PV input connector.
3.
Make sure the wires are securely connected.
INVERTER MODEL
SPF 3000TL LVM-ES
Max. PV Array Open Circuit Voltage
250Vdc
Start-up Voltage
150Vdc
PV Array MPPT Voltage Range
120Vdc~250Vdc

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