PDS33 Series
Chapter 3 Mechanical and Electrical Installation
3.1 Mechanical Installation
3.1.1Overheat protection
Install the PDS33 solar pump controller in a control box with control terminals and
power wiring. Install the control box out of direct sunlight to prevent overheating
and reduced performance. The optimum location is on the mounting pole for the
solar array underneath the array for protection from the sun, heat, and weather
elements. Placing the control box in direct sunlight or high ambient temperatures
will result in reduced performance due to temperature foldback protection of the
PDS33 solar pump controller. For optimum performance, maximize the shading of
the control box.
It is recommended that use a wire tube to protect the electric wire from the
destruction of wildlife and natural weathering, and bury the wire tube into the
ground to strengthen protection. If you do not use a wire tube, you can use a higher
quality outdoor cable.
3.1.2 Location Selection
The PDS33 solar pump controller is intended for
operation in ambient temperatures up to 60℃, but
in order to avoid overheating caused by the
failure, it is recommended to install the controller
in the shadow position.
Figure 5 Control Box Location
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