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©
2017 Sensata Technologies
Installation
Figure 2-2, Removing the Access Cover
2.3 Locating and Mounting the PT Controller
2.3.1
Removing the Access Cover
Before mounting, use a #2 Phillips screwdriver to remove the wiring compartment access cover
to expose the mounting holes and wiring terminals. The access cover is secured to the front of the
controller with four Phillips #8-32 × 3/8” (9.5 mm) screws as shown in Figure 2-2 below.
WARNING
: To prevent injury, ensure all PV and battery power to the controller is
disconnected before removing the access cover.
2.3.2 Removing
Knockouts
The wiring box on the PT charge controller provides four dual (1” and 1¼”) and three single (½”)
knockouts. These knockouts are provided for routing battery, PV array, BTS, and network cables
into the PT charge controller. Figure 2-4 shows the location of these conduit knockouts.
Before removing the knockouts and mounting the PT controller, think about all the different
wiring requirements and select the knockout closest to the terminal to which the wire connects,
or whichever one works for the way your conduit or
fi
eld wiring comes in. Refer to Section 2.7.2.
As shown in Figure 2-3, the knockouts can be easily removed by tapping the edge with a straight
bladed screwdriver and a hammer, then twist out with pliers. Do not drill, cut, or punch holes in
the PT charge controller. Use only the knockouts provided. While removing, ensure that no metal
shavings or fragments fall into the wiring compartment.
After removing the knockouts, use bushings or conduits to protect the wiring from damage from
rough edges around the knockout holes.
Figure 2-3, Removing Knockouts
Philli
ps #8-32 x 3/8”
(9.5 mm) screws (x4)
Access
Cover
