PT-100 Manual

Page 9
© 2017 Sensata Technologies
Installation
2.3.3 Finding a Location
The location of the PT controller is important to its performance and operating life. Install it in a
location that meets the following requirements:
Indoor – The PT controller enclosure is rated for indoor use only. It should be installed in a building
or enclosure to protect it from direct rain, sun, wind-blown dust, etc.
Cool – This controller should be protected from direct sun exposure or anything that could raise
its temperature (e.g., near a heating duct). The charge controller’s full power specifi cations are
rated with an ambient temperature of 77°F (25°C).
Dry – The area where it is located must be free from any risk of dripping water, or any other liquid
that can enter or fall on the charge controller. The charge controller uses stainless steel and zinc
plated fasteners, a powder-coated aluminum base, and the internal circuit boards are conformal
coated—to help fi ght the harmful effects of corrosion. However, the controller’s life is uncertain
if used in a corrosive environment, and failure due to corrosion is not covered under warranty.
Info: As a preventive measure to help protect and preclude corrosion to the electrical
ports on the PT-100 controller
, silicone dielectric grease compound can be applied into
the RJ11/RJ14 connections (Items 13, 14, and 15 as shown in Figure 1-2). Before
installing the cables, or if leaving any ports open, squirt a liberal amount of silicone
dielectric compound into each port to make an effective moisture and corrosive barrier.
Safe – Keep any fl ammable/combustible material (e.g., paper, cloth, plastic, etc.,) that may be
ignited by heat, sparks, or fl ames at a minimum distance of 2 feet (61 cm) from the controller.
Close to the battery bank – The charge controller should be located as close to the batteries as
possible - long DC wires tend to reduce the overall charging performance from the charge controller
to the battery bank. However, the unit should not be installed in the same compartment as the
batteries or mounted where it will be exposed to gases produced by the batteries. These gases are
corrosive and will damage the charge controller; also, if these gases are not ventilated and allowed
to collect, they could ignite and cause an explosion.
Accessible – Do not block access to the front of the charge controller. Allow enough room to view
the charge controller’s display and status indicators, and to remove the access cover to work with
the wiring terminals and connections—as they will need to be checked and tightened periodically.
2.3.4 Mounting Orientation
The PT-100 must be mounted vertically with the wiring box towards the bottom and its heatsink fi ns
oriented vertically to benefi t from convection cooling—DO NOT tilt. The PT-100 has not been tested
nor is approved to be mounted in any other orientation.
Figure 2-5, Mounting Orientations