Installation Sites With High Humidity - ABB UNO-DM-TL-PLUS-US Product Manual

+5° MAX -5° MAX
NO NO
Do not block access to the external AC and DC disconnects.
Please refer to the warranty terms and conditions to avoid any possible warranty exclusions
due to improper installation.
I
nstallation sites with high humidity
Do not open covers to install the inverter if there is precipitation or >95% humidity.
Always carefully seal all unused openings.
- Install vertically with a maximum inclination of 5° (forward or backward).
If this condition cannot be met, the inverter could undergo derating due
to high temperature because of poor heat dissipation.
+5° MAX -5° MAX
- Position multiple inverters side by side, maintaining at least minimum
NO
clearances, measured from the outermost edge of the inverter. Keep in
mind clearance and approach required for any removal or replacement!
- Multiple inverters can also be placed in a staggered arrangement. Mi-
nimum clearances for staggered arrangements include the width of in-
verter plus additional allowances for inverters arranged above or below
Even though the device is equipped with an anti-condensation valve, air
with extremely high levels of humidity can lead to moderate/low conden-
sation phenomena inside the inverter.
In fact since the inverter is almost completely insulated from the outside
once the covers are back in place, after the installation, still some damp
air could remain trapped inside the wiring boxes and determine modera-
te condensation level lately when the temperature drops down at night.
- 46 -
NO
NO
6"
8"
20"
5 - Installation
NO
8"