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Installation Guide
DISCLAIMER
PROJOY assumes no responsibility for any loss, in particular for circuit damage, resulting from any violation of
the specifications recommended and referred to in this specification. PROJOY assumes no responsibility for the
damage of the product caused by the maintenance, improper use, wrong installation or wrong system design of
the product by non-designated personnel.
SAFETY INSTRUCTIONS
1.
PEFS is an electrical product that should be installed by a suitable person who meets local regulations.
2.
When modifying and existing installation, isolate the inverter from the PV array by turning OFF the DC
isolator / switch disconnect or turn OFF the inverter and the AC switch.
3.
Incorrect connections to the PEFS-PL may cause failure.
CAUTIONS
If the inverter and pv module connectors are not compatible with PEFS connectors, forced connections are
unsafe and may cause operational problems.
For the mechanical compatibility of the module / converter and PEFS, use the same connectors from the same
manufacturer on both the PEFS and modules, or obtain verification that the connectors to be used are
compatible.
Do not drill through the PEFS-PL product, as this will damage the PEFS-PL component and make it impossible for
PEFS-PL to work.
INTRODUCTION
PEFS-PL is Rapid Shutdown Equipment for connection to PV panel arrays in order to achieve compliance to NEC
690.12 requirements of 2017.
1. When the PEFS-PL system detects that the voltage of the 24V remote control bus is normal, and the
temperature sensor inside the PFS-PL system judges that the temperature of the control panel is lower than 85℃
and higher than -30℃, the switch unit is closed.
2. When the PEFS-PL system detects that the voltage of the 24V remote control bus is abnormal, or the
temperature sensor in the PFS-PL system judges that the temperature of the control panel is higher than 85℃ or
lower than -30℃, the switch unit is disconnected.
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