INSTALL NOTES:
LED SYSTEM LAYOUT
©
FX Luminaire
1989–2015
CIRCUITING GUIDELINES:
EXPLODED VIEW:
Lo
ads PER C
ABLE
Add cable runs as necessar
y
T
T
Close-Zone 0–40' using voltage tap 12
Mid-Zone 40–80' using voltage tap 12
Far-Zone 80–120' using voltage tap 13
Out There-Zone 120–160' using voltage tap 14
T
12
180 watts max.
10
300 watts max.
12
95 watts max.
10
150 watts max.
12
100 watts max.
10
160 watts max.
12
110 watts max.
10
175 watts max.
T
Head
Assembly
Arm Base
Assembly
T
T
T
T
Single Transformer
When using only one transformer, it is very important to center the transformer on the wattage load. If the
project calls for 135 watts in both front and back yard, the transformer should be centered on the side of
the house that will receive the most lighting. A common mistake is to locate the single transformer on the
service side of the house or in the garage, which might result in excessively long cable runs to reach lighted
areas. The primary goal in laying out low voltage systems is to minimize cable runs because of voltage drop
and cost.
Multiple Transformers
A common mistake in laying out multiple transformer circuits is to group several transformers in one
location because of utility or visual considerations only. As with any low voltage layout, the prime directive
should be to locate the transformers as close to the fixtures as possible in order to minimize cable runs. The
other multi-transformer layout consideration is “use zoning.” Having several transformers allows the client
to selectively control light in separate areas. This approach is similar to irrigation design in that the goal
is to individually control areas that have similar needs. In lighting, a recreation area has different lighting
needs than a front entry. Therefore, the lights that serve these different lighting use areas need to be on
separate transformers and switch controls. Use of the FX Luxor transformer offers the alternative solution,
allowing zoning and dimming capabilities on a single transformer.
Sample diagram of home with transformer and lamp
placement
TRANSFORMERS:
• For maximum light output, tune lighting circuits to provide
between 10 and 15 volts as measured at lamp terminals when all
of the lamps on the circuit are operating.
• Voltage can be regulated by adjusting circuit load/run.
• To determine circuit voltage, use a digital voltmeter.
• Connectors used to connect a luminaire or output circuit component to the
main low voltage cable shall be copper or copper alloy, or the equivalent.
• When installed, the connection shall guard against inadvertent shorting of
current-carrying parts.
• Wire nuts are not to be used unless provided with corrosion protection,
intended for outdoor use, and designed for direct burial.
LED LIFE:
CONNECTORS:
