8
General Wiring Requirements
NOTE:
The wiring procedures in this manual are intended to ensure proper functioning of the device under
normal conditions. However, due to the many variations in wiring codes and regulations, total
compliance to these ordinances cannot be guaranteed. Be certain that all wiring complies with
applicable regulations that relate to the installation of electrical equipment in a hazardous area. If in
doubt, consult a qualified official before wiring the system.
Shielded cable is highly recommended for power input and signal wires to protect against interference caused by
extraneous electr ical 'noise'. Recommended detector cable is fou r conductor, shielde d, 18 AWG rated 300V. If
the wiring cable is installed in conduit, the conduit must not be used for wiring to other electrical equipment.
Detectors can be located up to 2000 feet (600 metres) from the controller if 16 AWG shielded conductor is used.
The UVU-140-A & UVU-140-AR are factory sealed complete with four feet of four conductor,
18 AWG cable rated 300V. No seal is required.