LITHONIA LIGHTING U21238T Decorative Indoor Flush Instruction Manual

: June 9, 2024
: LITHONIA LIGHTING

Table of Contents

LITHONIA LIGHTING U21238T Decorative Indoor Flush
SHEFFIELD FLUSH / SEMI-FLUSH
FLUORESCENT LIGHTING
- TROUBLESHOOTING GUIDE
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

LITHONIA LIGHTING U21238T Decorative Indoor Flush

SHEFFIELD FLUSH / SEMI-FLUSH

This product comes with a:
TWO YEAR LIMITED WARRANTY

Register your warranty on
www.lightahome.com/warranty
Your prompt product registration confirms your right to the protection available under the terms and conditions of your Lithonia Lighting warranty.

IMPORTANT SAFETY INFORMATION
(Protect yourself. Read these instructions carefully and save them for future reference).

THIS FIXTURE CAN BE MOUNTED FLUSH TO CEILING
OR
SEMI-FLUSH WITH THE SPACER CANOPY Hardware requirements will depend on the mounting method. Determine fixture location,orientation and mounting method, before proceeding.

CHOOSE YOUR PREFERRED OPTION

TO MOUNT FIXTURE FLUSH – See Figure 2.- page 4.
TO MOUNT FIXTURE SEMI-FLUSH – See Figure 4 – page 6.

FIXTURE PACKING LIST

Description Quantity

Crossbar ………………………………………………………… 1
Screw #8-32 x 1″ …………………………………………….. 2
Wire Nuts ……………………………………………………….. 5
Screw #8-32 x 2¼” …………………………………………. 2
Green ground screw ……………………………………….. 1
Nipple 1/8IP x 1¾” …………………………………………… 1
Hex Nut ………………………………………………………….. 4
Lock Nut …………………………………………………………. 4
Canopy …………………………………………………………… 1
Nipple 1/8IP x ½” …………………………………………… 3
Finial Cap ……………………………………………………… 2
Nipple 1/8IP x 1-1/16″ …………………………………….. 1
Large Nipple 1/8IP …………………………………………. 1
Large Finial …………………………………………………… 1

REQUIRED TOOLS

Safety glasses
Ruler/Tape measure
Phillips screwdriver
Adjustable wrench

Lamps Included.
All Mounting Hardware Included.

WARNING: RISK OF SHOCK
Electric current can cause painful shock or serious injury unless handled properly. For your safety, always:

Turn off electrical power at fuse or circuit breaker box be-fore wiring fixture to the power supply.
Turn off the power when you change lamps or perform other maintenance.
Ground the fixture to avoid potential electric shocks and to ensure reliable starting.
Double-check all connections to be sure they are tight and correct.
Wear rubber-soled shoes and work on a sturdy wooden ladder.

This fixture is designed for use in a circuit protected by a fuse or circuit breaker and to be installed in accordance with local electrical codes. If you are unsure about your wiring, consult a qualified electrician or local electrical inspector, and check your local electrical code.

WARNING: RISK OF INJURY
Some metal parts in the fixture may have sharp edges. To prevent cuts and scrapes, wear gloves when handling the parts.
Account for small parts and destroy packing material, as these may be hazardous to children.
Use flashlight or alternate light source to light work area during installation.
Assistance may be required to support fixture during installation.

Remove fixture components and parts pack(s). Check that all parts are included. See Figure 1.
WIRING AND FIXTURE OPERATION
CAUTION: Connect fixture to supply wires rated for at least 90° (194°F). Do not use fixture on dimming circuits.
FIGURE 2: TO FLUSH MOUNT FIXTURE
Follow steps 2A to 9A.
A. Attach crossbar to junction box with the (2) #8 x 1 machine screws passing through the slots. (Head of green screw should face downward). See Figure 3.
A.Thread (2) #8 x 2¼” machine screws into the crossbar about ¼”. See Figure 3.
A. Thread a hexnut onto one end of the large nipple about 1/4″. Then thread end into the coupling on the front of the pan. See Figure 1.
A. Tighten the hexnut again against the coupling to lock the nipple in place. See Figure 3.
A. With the power off, hold the fixture firmly and connect the copper ground wire from the fixture to the junction box, by wrapping them under the head of the green ground screw and securing them to the crossbar. (If house wiring includes no ground wire consult your local electrical code for approved methods). See Figure 3.
Assistance may be required to support fixture during installation
A. Use wirenuts to connect the black fixture wire(s) to the black power supply wire and white fixture wire(s) to white power supply wire. See Figure 3
FOR PROPER CONNECTION, PLACE WIRENUT OVER WIRES, TWIST CLOCKWISE UNTIL TIGHT
A. Align the keyholes in the fixture pan with the screws extending from the cross bar previously mounted the junction box. See Figure 3.
A. Install and rotate the pan to locate the screws in the slots.
Tighten the screws to secure the pan against the ceiling.
See Figure 3

Proceed to Step 17

FIGURE 4: TO SEMI-FLUSH MOUNT FIXTURE

Follow steps 2B to 16B.

B. Attach crossbar to junction box with the (2) #8 x 1 machine screws passing through the slots. (Head of green screw should face downward). See Figure 5.
B. Thread the 1/8IP x 1¾” nipple into the center hole of the crossbar about ¾”. See Figure 5.
B. Fully thread the 1/8IP x 1-1/16″ nipple into the center coupling on the back of the pan. See Figure 1.
B. Insert power cord and ground wire from the chain-link end of the extension pipe into ballast cover strain relief bushing and tie a knot in the cord. See Figure 1.
B. Use wirenuts to connect the bare copper ground wire from pan to the ground wire from the canopy assembly.
Then connect white fixture wire to the neutral (ribbed) power cord wire and the black fixture wire to the remaining power cord. See Figure 5.
B. Place the ballast cover over the 1-1/16″ nipple and secure it against the pan using the small finial. See Figure 1.
B. Remove hexnuts and lock washers from the ends of each extension pipe. See Figure 1.
B. Attach the extension pipes to the canopy by inserting the threaded end of each pipe into one of the three holes in the canopy. Replace the lock washers and tighten the hexnuts.
See Figure 1.
B. Attach (3) chain links to the mounting hooks.
B. Thread a hexnut onto one end of the large nipple about 1/4″. Then thread end into the coupling on the front of the pan. See Figure 1.
B. Tighten the hexnut again against the coupling to lock the nipple in place. See Figure 3.
B. With the power off, hold the canopy firmly and connect the copper ground wire from the fixture to the junction box, by wrapping them under the head of the green ground screw and securing them to the crossbar. (If house wiring includes no ground wire consult your local electrical code for approved methods). See Figure 5.
B. Use wirenuts to connect the black fixture wire(s) to the black power supply wire and white fixture wire(s) to white power supply wire. See Figure 5 .
FOR PROPER CONNECTION, PLACE WIRENUT OVER WIRES, TWIST CLOCKWISE UNTIL TIGHT.
B. Align the hole in the canopy with the nipple extending from the cross bar previously mounted to the junction box. See Figure 5.
B. Hold the canopy against the ceiling and thread a small finial onto the nipple until canopy is secure. See Figure 5.
Insert lamp (s) and install diffuser by placing it over the long nipple and securing it in place with the large finial.
See Figure 1.
Turn on electricity at fuse or circuit breaker box .

FLUORESCENT LIGHTING

TROUBLESHOOTING GUIDE

Fluorescent lighting installations provide service for many years with little or no maintenance except for routine cleaning and re-lamping. If a malfunction does occur, use the guide below to diagnose and correct the problem. If further assistance is required, contact:
Consumer Products Customer Service at 800-748-5070

If fixture “hums”:

Verify ballast is securely fastened to ballast hous-ing.* All magnetic ballasts will “hum” slightly.
Verify fixture is grounded properly.
Allow fixture to remain on continuously for 48 to 72 hours. This allows for proper “seasoning” of the ballast.

If lamp(s) will not operate:

Make sure all lamps are properly seated in socket.
Replace defective lamp(s).
Reseat or change starter (preheat only).
Verify that fixture is wired properly.
Verify that fixture is grounded. (All fluorescent fixtures must be grounded.)

If lamp(s) is/are slow or erratic when starting:

Check to see if fixture is properly grounded.
Check ballast label to verify that correct lamp is installed in fixture.
Verify that fixture is wired properly.
Check for low voltage supply.
Make sure all lamps are properly seated in sock-ets.

If lamp(s) blink, flicker or “snake”:

Turn fixture on and off several times at 30 minute intervals.
Check ambient temperatures and, if needed, change ballast rated for conditions below 50°F.
Check for fans or air conditioning blowing across lamps.
Check wiring connections.
Allow fixture to remain on for 24 to 48 hours; this will “season” the lamp.
Check supply voltage.

If there is reduced light output:

Check for ambient temperature significantly above or below 77° F.
Check for fans or air conditioning blowing across lamps.
Check wiring connections.

If there is radio interference:

Move electronics at least 10 feet from lamps.
Install radio interference filter.
Improve equipment grounding or install shielded grounded radio antenna.

If lamps repeatedly cycle on and off:

Check ballast label for correct lamp and verify that correct lamp is installed in the fixture.
Check wiring connections.
Check supply voltage.
Check for high ambient temperatures, ventilate, or suspend fixture.

If lamp is marked it contains Mercury.
Follow disposal laws. See WWW.LAMPRECYCLE.ORG

Acuity Brands Lighting, Inc.
One Lithonia Way, Conyers, GA 30012
www.lightahome.com