4100-HCF2
Revision 3.0
P a g e 14 | 35
5.0 ELECTRICAL INSTALLATION OVERVIEW
Refer to the drawings provided by the contractual engineer for your project and the drawings included
with this manual.
Figure 4 – Electrical Installation Overview
Wiring
The main control panel supplies a 24 VDC power signal to the PMC card installed in the floating sensor.
When the sensor float is connected, the voltage is 8 – 13 VDC across the + & - terminals of probe input
of an App Board.
The PMC card drops a frequency pulse onto the sensor wiring for a return signal to the main control unit.
Float sensor comes with 30m (100ft) cable. Any extra length would require a weatherproof splitter box
and 3 conductor shielded hook up cable.
A typical wiring type is 20AWG 3 conductor shielded (Belden #8772 or equivalent).
*Shielded wire is required on all installations.
Maximum wire length is 1km between controllers to sensor float.
Refer to the detailed electrical drawings included at the back of this manual.