YASKAWA Solectria PVI 25TL-208 Installation And Operation Manual page 22

Installation and Operation Guide SOLECTRIA® PVI 25TL-208, PVI 50TL-480 and PVI 60TL-480
Maintain NEMA 4X Rating: Water ingress could result in unsafe conditions. Please take note of the following
recommendations in order to maintain the NEMA rating and prevent water from entering into the system.
Do not add weep holes or any other holes to the inverter or wire box. Doing so will void the warranty.
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For earlier wire box models with a gland plate – the conduit connections must be strain relieved to
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ensure the plate to gasket interface is water-tight. Water-tight metal flex conduit is one method.
• All conduit entries must be metallic.
All conduits must be sealed to prevent moisture ingress.
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o Sealing conduit entries at the PV array will provide additional protection. Firestop putty or
electrically rated conduit foam is recommended.
Allowable Ambient Temperature Ranges:
Storage Temperatures: -40°C to 70°C, Inverter not installed and in storage (in packaging or unpackaged).
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Normal Operating Temperatures: -30°C to 60°C, Inverter installed, connected to electric utility grid, and
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operating during daylight hours.
Connected but Off Temperatures: Max temp 70°C with no lower limit on temperature, Inverter installed,
•
connected to electric utility grid but non-operating (daylight or nighttime hours).
The bulkhead connector cover does not provide a water-tight seal. If the power head is not to be
installed immediately on the wire box, the installer will need to provide a water-tight seal over the
 Check that the inverter environmental specifications (protection degree, operating temperature range,
humidity and altitude, etc.) meet the requirements of the specific project location.
 Make sure that the electric utility grid voltage is within range for the grid standard chosen.
 Ensure that the local electric utility grid authority has granted permission to connect to the grid.
 Installation personnel must be qualified electricians or those who have received professional training.
 Wear and use proper personal protective equipment (PPE) during installation.
 Sufficient space according to Figure 3-3 must be provided to allow the inverter cooling system to
operate effectively.
 Install the inverter away from flammable and/or combustible substances.
 Avoid installing the inverter in locations that exceed the temperature limits specified for the inverter to
prevent undesirable power loss.
DOCR-071030-A (10/7/2022)
NOTICE!
NOTICE!
bulkhead connector until inverter power head is installed.
PRE-INSTALLATION CHECKLIST
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