Controller Placement; Mounting, Space And Ventilation Requirements - Lorentz PS Série Manuel D'installation Et De Fonctionnement

20 Controller Installation

7.5 Controller Placement

The controller must be protected from water, moisture and
animals, so keep the controller box sealed. Place the control-
ler in a dry and sufficiently ventilated environment.
Place the controller close to the solar array, not the pump,
to reduce the risk of lightning damage. The controllers' input
circuitry is more sensitive to surges than its output. There-
fore it is safest to minimize the length of the input wiring.
Electronic devices are most reliable when they are protected
from heat. Mount the controller where it is shaded from
the midday sun. An ideal location is directly under the PV
generator. If no shade is available, cut a piece of sheet metal
and bolt it behind the top of the controller. Bend it over the
controller to provide shade. This is especially important in
extremely hot locations. Extreme heat may trigger a thermal
function in the controller causing it to reduce the power
consumption or turn it off. The controller housing can reach
high temperatures when operating at high ambient tem-
peratures. This is normal and will not reduce the expected
lifetime of the controller or its components.

7.6 Mounting, Space and Ventilation Requirements

PS controllers can be mounted side by side.
All PS controllers have a fan-less design; they are cooled by
air convection. It is strictly advised not to install the control-
ler in an additional enclosure. If an additional enclosure is
necessary a sufficient vertical airflow (from bottom to top)
has to be ensured to allow sufficient cooling.
For controller dimensions, cf. "Table 3: Controller dimensions
for installation" on page 21.