PT-100 Manual

Installation

2.3.5 Ventilation and Clearance Requirements

The charge controller should not be installed in an area that allows dust, debris, insects or rodents

to enter or block the controller’s ventilation openings, or in an area without sufﬁ cient air ﬂow

around the PT’s enclosure. There must be free air movement through the controller and over the

controller’s rear heatsink ﬁ ns. This is done by mounting on the side of a Magnum Panel (see Figure

2-8 or by using the supplied wall-mounting bracket to mount against a wall (see Figure 2-10).

The PT-100 controller uses two fans to force air through the controller to help maintain the proper

internal operating temperature. The fans pull in air through the intake vents and blow out air through

the exhaust vents (see Figure 2-6). In order for the PT-100 to provide full output power and to

avoid over-temperature fault conditions, do not cover or block the ventilation openings or install

this charge controller in an area with limited airﬂ ow. When mounting the controller, ensure there is

free air ﬂ ow through the controller and adequate clearance around the rear heatsink ﬁ ns. To provide

adequate ventilation, allow at the minimum, a clearance of 6” (15 cm) from the bottom surface and

1” (2.5 cm) from the rear and at least 1” (2.5 cm) from one of the side surfaces (see Figure 2-7).

CAUTION: Do not mount this charge controller ﬂ ush against any surface without

using the wall-mounting bracket that is provided. Damage to the surface and over-

temperature shutdowns may occur, and service life of the controller may be affected.

CAUTION: Do not mount this charge controller in a zero clearance compartment, nor

cover or obstruct the ventilation openings—overheating will result.

Info: If required, the controller may be installed in an enclosure, as long as it is

ventilated with sufﬁ cient air ﬂow. The enclosure must have a fresh air intake opening

provided directly to the side of the controller close to the intake vents and an exhaust

opening close to the exhaust vents on the charge controller. This allows cool air from the

outside to ﬂ ow in and heated air to exit out of the PT-100 and the enclosure.

Figure 2-7, Minimum Mounting

Clearance Requirements

BOTTOM

at least 6"

(15 cm)

REAR

(and at least

one side)

at least 1"

(2.5 cm)

REAR SURFACE

BOTTOM SURFACE

PT-100

Charge

Controller

(side view)

Figure 2-6, Air Flow in and around PT

Air intake

vents

Air exhaust

vents