© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved.
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HME-1000T/1200T/1350T/1500T-AU
Maintenance operations must be carried out with the equipment disconnected from the grid (power
switch open) and the photovoltaic modules obscured or isolated, unless otherwise indicated.
For cleaning, do not use rags made of filamentary material or corrosive products that may corrode
parts of the equipment or generate electrostatic charges.
Avoid temporary repairs. All repairs should be carried out using only genuine spare parts.
If all the microinverters connect to the DTU-Pro, the DTU can limit the output power imbalance of all
the microinverters between phases to below 3.68kW if required. Please refer to “Hoymiles Technical
Note Limit Phase Balance” for more details.
Each branch should provide a circuit breaker, but no need for central protection unit.
6.5 Replace Microinverter
a. How to remove the Microinverter.
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De-energize the AC branch circuit breaker.
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Remove the PV panel from the racking, and cover the panel.
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Using a meter to measure and make sure there is no current flowing in the DC wires between
panel and microinverter.
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Use the DC disconnect tool to remove the DC connectors.
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Use the AC disconnect tool to remove the AC connectors.
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Un-screw the fixing screw on the top of the microinverter and remove the microinverter from the
PV racking.
b. How to replace the Microinverter:
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Please record down the new Microinverter’s SN.
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Please make sure the AC branch circuit breaker if off, and following the Microinverter installation
steps to install the replacement unit.
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Go to the monitoring platform (if customer already register this station online), please access the
“Device List” page and find the device that you just replaced. Please click the down arrow next to the
“More” on the right side of the page, and select “Replace”. Input the new Microinverter’s SN and click
“Ok” to complete the station changes.
