Instruction Manual

Ceiling Cutout Dimensions
For best results, match ceiling cutout size to the specified
dimensions. Using a properly sized hole saw or a rotary cutter
with a 1/8” diameter bit will provide the best quality cutout.
For round aperture Aculux housings:
• When using standard (with separate trim frame) or
self-flanged trims, cut a 4-1/4” diameter hole in the ceiling.
• When using flush mount trims and separate flush mount
adapter accessory for drywall ceilings, make ceiling cutout
4-3/8” diameter.
• When using flush mount trims and separate flush mount
adapter accessory for wood, stone, tile and other solid
ceilings, make precise ceiling cutout 4.145” diameter
(adapter can be used as a template).
(Refer to separate flush mount adapter instruction sheet
for detailed information.)
For square aperture Aculux housings:
• When using self-flanged trims, cut a 4-1/8” x 4-1/8”
square opening.
• When using flush mount trims and separate flush mount
adapter accessory for drywall ceilings, make ceiling cutout
4-1/4” x 4-1/4” square.
• When using flush mount trims and separate flush mount
adapter accessory for wood, stone, tile and other solid
ceilings, make precise ceiling cutout 4.020” x 4.020” square
(adapter can be used as a template).
(Refer to separate flush mount adapter instruction sheet
for detailed information.)
Note: Aculux square and round housings are designed for
ceiling thicknesses from 1/2” up to 7/8”. For ceiling thicknesses
7/8” and greater, thick ceiling adapter accessories are required.
Thick ceiling adapter accessories are not required when
using flush mount adapters for wood, stone, tile and
other solid ceilings.
Rotating Housing Aperture (Square Housings Only)
Aculux Square housings allow rotation of the square aperture in
multiple directions to accommodate an infinite number of layout
possibilities. The housings ship with the square aperture locked in
the 0˚ position. To rotate the aperture to a new position:
1. On the bottom of the housing, locate the screw in the curved
slot of the plaster frame, directly above the angle markings.
2. Loosen screw and rotate the aperture in the desired
direction. The indicator arrow and angle markings, which are
marked every 5˚, help ensure accurate placement. (Fig. 8)
3. Tighten screw securely to lock into adjusted position.
Fig. 8
Tru-Line™ Translation
Aculux fixtures contain a patented adjustment feature that
allows shifting the plaster frame aperture parallel to the
joists up to 1/2” in both directions without detaching the fixture,
providing the installer with an easy way to achieve
precise layouts.
1. Locate the screw on the plaster frame above and to the left
of the Aculux logo (about 3” diagonally).
2. Loosen screw and slide the plaster frame aperture in the
desired direction. (Fig. 7)
3. Tighten screw securely to lock plaster frame aperture in
the new position.
Note: If adjustment more than 1/2” in either direction is
needed, the Pro-VI™ hanger bar system contains bugle-head
nails that can easily be pulled-out with a hammer claw
for repositioning.
Fig. 7
Optional Dimmer Learn Feature (0-10V only)
To ensure compatibility with common 0-10V DC controls, black
body dimming and tunable white modes are factory set to
operate in the 2-8VDC range. Fixtures can be programmed to
learn a specific dimmer range if desired. This can improve
responsiveness of the fixture and reduce “dead travel” when
dimming with a wall box dimmer. Please note that this feature is
optional. The factory setting is fully functional with common
0-10V DC controls even if this feature is not used.
To use this feature, there is a red push-button switch located
inside fixture on junction box access panel. (Note: these steps
can be done concurrently on multiple fixtures if desired)
To learn a dimmer range:
1. With fixture power off, press red push-button switch
inside housing.
2. Turn fixture power on. There will be a 5 second delay,
followed by orange colored blinking. This signals that fixture
is now in “learn mode”. Slide dimmer through the full range
a couple times, and then turn power off.
3. When fixture is powered on, dimmer range has been learned
and fixture is fully operational with the new settings.
To reset fixture to default range:
1. With power on or off, set dimmer to midpoint of travel so that
the dimmer signal is between 2-8VDC.
2. Power off fixture(s) (if on in step 1).
3. Press red push button switch inside fixture(s).
4. Power fixture(s) on. There will be a 5 second delay, followed
by orange colored blinking. This indicates the fixture is
relearning the default 2-8VDC range. DO NOT ADJUST
DIMMER DURING THIS STEP.
5. Power off fixture(s).
6. When power is turned back on, fixture is fully operational
in default mode.
INSTALLATION INSTRUCTIONS FOR ACULUX LED 3 1/4˝ RECESSED HOUSING
WITH BLACK BODY DIMMING AND TUNABLE WHITE LED TECHNOLOGY
Aculux LED housings contain a patent-pending lens holder
that accepts up to (3) standard 2” light control or color control
accessories without sacrificing performance or optimum
light position.
To install lens (refer to fig. 11):
1. Twist to unlock outer lens holder (A) and remove.
2. Place lenses (B) into outer lens holder.
3. Line up the notches in lens holder (C) with tabs (D) in housing.
Press upward until seated and twist to lock into place.
Aculux LED housings are shipped with an optic which provides
the beam spread specified at the time of purchase. However, this
optic can be replaced if a different beam spread is desired.
To replace optic (refer to fig. 11):
1. Remove the outer lens holder (A) as described in
Step 1 above.
2. Unscrew threaded bezel (E) from inner optic housing (F)
and remove optic (G).
3. Insert new optic into inner optic housing.
4. Reinstall threaded bezel onto inner optic housing.
5. Replace outer lens holder with any accessory lenses
as described in Step 3 above.
Lens and Optic Installation and Replacement
Acu-Aim™ Precision Geared Hot-Aiming
Aculux housings contain a precision geared adjustment
mechanism, optimized for center beam optics and hot aiming.
This allows the directional beam of the LED to be easily
fine-tuned using a standard Phillips screwdriver for exact aiming.
The mechanism allows 45° tilt and 370° rotation to eliminate
aiming dead spots.
To adjust aiming angle:
1. Find the upper Phillips head drive gear, located near the face
of the light engine.
2. Turn the drive gear counter-clockwise to increase tilt, and
clockwise to decrease tilt. Fixtures include angle markings
to ensure correct position. Fig. 9 (A)
To adjust rotation:
1. Find the lower Phillips head drive gear, located near the
fixture aperture.
2. Turn the drive gear to achieve desired rotation. Fig. 9 (B)
Installing Finishing Trims
Aculux round and square trims contain high-grade constant
tension wire-form springs that keep the trims flush to the
finished ceiling, improving flatness and eliminating possible
light leak. To install the finishing trims into the housings:
Round housings:
1. Compress the springs and insert into the corresponding
oval slots, located about 1-1/2” deep in the housing.
2. Push trim upwards, until the springs pull trim tight to
the ceiling.
Square housings:
1. Grab the end of one spring, and rotate up (away from
the finished face of the trim).
2. Engage the spring over the upper edge of the square
housing opening.
3. While holding trim in position, rotate second spring up and
insert into housing opening.
4. Push trim up until both springs engage.
Caution: The springs on the square trims snap closed upon
removal from the housing. Remove slowly and observe the
location of the springs. Keep fingers and hands clear of these
springs to prevent injury when removing.
Fig. 9
A
B
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©2017 Acuity Brands Lighting, Inc. Rev 07/21 P3931
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