YC600 Installation/User Manual
2
1.Important Safety Instructions
This manual contains important instructions to follow during installation and maintenance of
the APsystems Photovoltaic Grid-connected Inverter (Microinverter). To reduce the risk of
electrical shock and ensure the safe installation and operation of the APsystems Microinverter,
the following symbols appear throughout this document to indicate dangerous conditions and
important safety instructions Specifications are subject to change without notice - please
ensure you are using the most recent update found at
This symbol indicates a situation where not following instructions may cause a serious hardware
or safety issue and/or put people in danger. Be extremely cautious when performing this task.
This symbol provides important indication to follow in order to optimize microninverters
operations. Follow these instructions closely.
1.1 Safety Instructions
Do NOT
disconnect the PV module from the APsystems Microinverter without first
disconnecting the AC power.
Only qualified professionals should install and/or replace APsystems Microinverters.
Perform all electrical installations in accordance with local electrical codes.
Before installing or using the APsystems Microinverter, please read all instructions and
warning notices in the technical documents and on the APsystems Microinverter system
and the solar-array.
Be aware that the case of the APsystems Microinverter is the heat sink and can reach a
temperature of 80°C. To reduce risk of burns, do not touch the case of the Microinverter.
Do NOT
attempt to repair the APsystems Microinverter. If it fails, contact APsystems
Customer Support to obtain an RMA number and start the replacement process. Damaging
or opening the APsystems Microinverter will void the warranty.
Caution!
The external protective earthing conductor is connected to the inverter protective earthing
terminal through AC connector. When connecting, connect the AC connector first to ensure
the inverter earthing then do the DC connections. When disconnecting, disconnect the AC
by opening the branch circuit breaker first but maintain the protective earthing conductor
in the branch circuit breaker connect to the inverter ,then disconnect the DC inputs.
Please install AC breakers on the AC side of the inverter.
