Cumberland 064-11343, Installation Manual

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Chapter 2: Pre-Installation Planning
About dimmable CFL/CCFL/LED bulbs
The EDGE 4IN-6R-2LD modules can control the intensity of three types of energy-efficient lamps:
1. Compact Fluorescent Light (CFL) — This refers to compact fluorescent light or energy saving
light.
2. Cold Cathode Fluorescent Lamp (CCFL) — This refers to light sources that are based on gas dis-
charge principles, where the cathode of the lamp is not independently heated.
3. Light Emitting Diodes (LED) — This refers to a semiconductor diode that emits light when con-
ducting current.
There are about 35 different electrical components in a typical dimmable CFL/CCFL/LED which can
cause the bulbs to react differently one another (some bulbs may extinguish early; other may flicker
before they extinguish at their low end).
Dimmable CFL/CCFL/LED may cause interference with AM radios, cordless telephones and remote con-
trol devices.
The lifetime of CFL/CCFL/LED are 8 times the lifetime of incandescent lamps. Many factors can affect
their lifetime:
• Operating voltage;
• Manufacturing defects;
• Exposure to voltage spikes;
• Mechanical shocks;
• Frequency of On/Off cycles;
• Lamp orientation;
• Ambient operating temperature;
• etc.
The CFL/CCFL produce less light as time passes: a test made by the US Department of Energy of
‘Energy Star’ products in 2003–04 has demonstrated that one quarter of tested CFLs no longer met their
rated output after 40% of their rated service life.
AC Source Filtering
The filters on a 4IN-6R-2LD only filter EMI high frequencies. AC Power sources must not be polluted by
other electrical machine noise. One AC Power source must be dedicated to one Zone AC input.
If the electrical network is polluted by low frequency EMI like harmonics issues and flickering, the use of a
harmonics filter can be used to help solve the issue.
NOTE: In some areas around the world, the elimination of harmonics emission is mandatory. In this case,
the use of harmonics filters is essential.
Power Output Formulas for Light Dimmer
Use the power output formulas to determine the power needed for your system.
Method 1
The power factor (PF) is between 0.5 and 1, and the number of watts are given by the light manufacturer
for one lamp.
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