2 POINTS TO CHECK WHEN SELECTING THE INSTALLATION
LOCATION
Check the following items before starting installation work.
Refer to the inverter installation manual for more information about inverter
installation and electrical work.
2.1 CONDITION OF HOUSE WHERE SOLAR POWER SYSTEM IS
TO BE INSTALLED
INSPECTION OF ROOF STRUCTURE
It is important to inspect the structural integrity of the roof and the durability of the
roof materials. The mounting structure and solar modules require a strong base for
durable and reliable operation in local environments. Always wear a safety harness
when working on the roof. Inspect the roof surface in the area of the installation for
cracks, water leakage, and roofing material quality and uniformity. This is especially
important if the roof is older than 10 years. Inspect the roof for sags and other
abnormalities. A sag or deep depression in the roof may indicate a structural
weakness in the support system that may require correction. The following
illustrations detail typical roof construction as well as old roof problems.
INSPECTION OF THE ROOF SUPPORT SYSTEM
This may require access to the attic. Check that all rafters, trusses and other
materials are in good condition. Check for indication of previous water leaks.
Measure the spacing of the rafters or trusses to confirm the dimensions and prepare
for the system layout. Determine the location of the electrical roof penetration and
wire run, if wiring is planned for this area.
