8
Installing the Luxor
®
ZD/ZDC Transformer
Low Voltage Cable
Each low voltage lighting cable consists of two parts. One part of the
cable is designated to carry the voltage load and is referred to as the
Common lead. The Common section is installed into one of the low
volt Common lugs on the terminal block. The other section is referred
to as the 14V lead and is installed into the lugs labeled 14V. Voltage is
carried out from the transformer to the xtures via the Common side
of the cable and returns back to the transformer 14V tap via the other
half of the cable, thus completing the circuit.
Cabling Methods
Within each cabling zone, you may utilize any of a number of cabling
methods. The primary objective is to minimize voltage drop by
installing the proper size feeder cable (home run) to each zone, and
to make sure each xture on each cable run is receiving between
10 and 15 volts. Center feeding the “home run” (the main cable run
from the transformer to the rst xture on the circuit) will help
minimize the voltage dierential between the rst xture and the
last xture on the cable run.
Connecting Cables at the Terminal Block
Transformer terminal block: The Luxor Series Transformer includes
one Common lug, and one 14V lug.
Common Lug: One conductor from each cable run coming from the
lights to the transformer must be connected to one of the common
lugs. The other conductor will be installed into the 14V hot lug.
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