Cut Sheet

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c. Controls shall provide a vertical slider allowing the light level
or fan speed to be set by the user. "Slide-to-off" controls
shall use the vertical slider to turn the control on and off.
"Preset" dimmers shall provide the on/off function
independent of the dimmer slider position. This preset
function shall be provided as a push on/push off switch
integral to the slider knob and visibly distinct from the slider.
For preset dimmers, when the lights are on, the slider shall
change the light level and when the lights are off, the slider
shall preselect the light level the lights will turn on to.
d. Control on/off function must be accomplished utilizing a
mechanical air-gap switch to totally disconnect power from
the load during "off" condition, no leakage current shall be
present at the fixture(s).
e. Slider shall be captured behind wallplate.
f. Preset dimmers shall be capable of multi-location on and
mechanical air-gap off using standard 3-way and 4-way
switches. Multi-location switches shall be Nova T
a style.
g. Controls shall be able to have their visible plastic parts
replaced, for color changes in the field, without removing
the body of the control from the wall and without requiring
special tools.
h. Within rated capacity, dimmers shall be available for direct
control of incandescent, electronic low voltage, magnetic
low voltage, and fluorescent. Matching fan-speed controls
and switches shall also be available.
i. Controls shall be capable of operating at the rated capacity;
this includes modified capacities for ganging configurations
which require the removal of fins. Operation at rated
capacity shall be possible across the full ambient
temperature range, without shortening design lifetime.
j. To ensure a precise color match between all plastic
parts, color variation of any matte finish control shall
not exceed a delta E of 1, CIE L*a*b* color units, as
defined in ASTM E 308-99.
k. Dimmer shall provide smooth and continuous Square Law
dimming curve, for the full slider travel, on their rated load
per The IESNA Lighting Handbook, 9th edition, p. 27-4.
l. Controls shall meet the applicable requirements of UL 20
and UL 1472 referring to the inclusion of a visible, accessible
air-gap off switch and the limited short circuit test.
m. Controls shall meet ANSI/IEEE Std. C62.41-1980, tested to
withstand voltage surges of up to 6000V and current surges
of up to 200A without damage.
n. Dimmers shall be designed to reduce interference with
radio, audio, and video equipment.
o. Controls shall incorporate power-failure memory. Should
power be interrupted and subsequently returned, the lights
or fans will come back on to the same levels set prior to the
power interruption. Restoration to some other default level is
not acceptable.
p. Controls shall not be susceptible to damage or loss of
memory due to static discharge.
q. Dimmer shall include voltage compensation to compensate
light output for variation in the AC line-voltage. Dimmers in
which the light output is not held constant with varying AC
line-voltage shall not be acceptable.
r. Controls shall operate in an ambient temperature range of
0°C (32°F) to 40°C (104°F).
NOVA TA CONTROLS AND ACCESSORIES
PART 1 – GENERAL
1.01 S UMMARY
A. Scope: Provide, install and test all switches, dimmers and related
devices as specified herein for the areas indicated on the drawings,
specifications, and load schedules.
B. Related Sections: Section 16580 (Ballasts), Section 16570 (Dimming
Systems).
1.02 R EFERENCES
A. UL 20, UL 1472, CSA, NOM, ISO 9001
1.03 S YSTEM D ESCRIPTION AND O PERATION
A. Permanently installed, wallbox mounted switches and dimmers
B. Permanently installed, wallbox mounted fan-speed controls
C. Permanently installed, wallbox mounted receptacles
D. Permanently installed, wallbox mounted data, voice and cable jacks
E. Screwless, seamless wallplates
1.04 S UBMITTALS
A. Submit manufacturer's standard catalog data giving all application,
wiring, and installation information on basic components and
wallplate kits. Provide test data and/or samples as required to
demonstrate conformance with PART 2 of this specification.
1.05 Q UALITY A SSURANCE
A. Manufacturer shall have a minimum of 10 years continuous
experience in manufacturing wallbox dimming products.
B. Dimmers, switches and Fan-speed controls shall be UL listed, CSA
and NOM approved specifically for each required load (i.e., tungsten,
electronic low voltage transformer, magnetic low voltage
transformer, and fluorescent). Manufacturer shall provide file card or
certificate upon request. Universal load-type dimmers shall not be
acceptable.
C. Manufacturer shall maintain ISO 9001 certification and provide a
copy of the certificate upon request.
1.06 W ARRANTY
A. All devices shall be covered by a minimum one-year warranty.
PART 2 – EQUIPMENT
2.01 A CCEPTABLE M ANUFACTURERS
A. Lutron Electronics Co., Inc.
B. Unless otherwise noted, all basic components (dimmer, fan-speed
control, switch, receptacle, telephone jack and cable TV jack) and
wallplate kits shall be provided by one manufacturer.
2.02 E QUIPMENT
A. Controls Lutron Nova Ta Style
1. Performance
a. Dimmers shall provide full-range, continuously variable
control of light intensity.
b. Controls shall fit a 1 inch wide, 1.5 inch tall wallplate
opening with a vertical linear-slide. Controls shall be thin
profile with no exposed heatsink/yoke. Unless otherwise
specified, controls shall have a matte finish.
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