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LPT - Operation Manual
Rev. E | 2021.03
6.7.1 Power Connection
If the installer is powering the LPT with 24 VAC, both VAC wires should be connected to the terminal
“one” and terminal “two”, from the top down.
If the installer is powering the LPT with 24 VDC three wire, the “positive” wire should be connected
to terminal “one” and the negative wire should be connected to terminal “three”. The “signal” wire is
always
connected to terminal “four”. With 24 VDC two wire the “Positive” wire should be connected
to terminal “one’ and the “signal” wire is
always
connected to terminal “four.” Refer to
Wiring
Examples
.
NOTE: DO NOT USE SOLID-CORE WIRE AT THE WIRING TERMINAL STRIP.
When using solid
core wiring for distribution (in the conduit), use stranded wire pigtails 18 awg within the enclosure
to connect to the circuit board. The rigidity of solid-core wire can pull a soldered terminal strip
completely off a circuit board “this will not be covered under warranty”.
System power:
The main wiring terminal strip on the LPT circuit board can be unplugged for
easier wiring installation. Grasp the two sides of the terminal strip and pull sideways.
Wiring Examples
Device must be used with rated equipment. External power to LPT must be supplied by a Class 2
or better transformer. For loop-powered applications, the controller must conform to CSA, UL & CE
safety standards.
