LEGRAND HKRL50 User manual

installation guide
Smart Tru-Universal Dimmer
Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HKRL50
with HomeKit Technology

2
table of contents
before you start..................................3
what you need ...................................4
getting to know your dimmer........6-7
installation and setup ................ 8–23
specifications.............................24-25
faqs ....................................... 26–30
warranty.......................................31
regulatory information ......... 32–35
support ........................................36
notes .......................................... 37

3
before you start
Review this guide in its entirety before beginning device installation. Consult an
electrician with any questions or if you are unsure of your abilities.
DWarning: Incorrect installation could
result in death, serious injury, and/or
damage to your home or devices.
DCaution: To reduce the risk of injury
and/or overheating and damage to other
equipment:
• For dry, indoor use only.
• Use ONLY with dimmable lighting loads.
• Do not use to power medical equipment.
• Do not use with loads exceeding the
device load rating (see page 24).
• Connect the smart dimmer to a
120 VAC, 60 Hz power source ONLY.
• Always use copper wire to install the
smart dimmer and follow all applicable
local and national electrical codes.
• Install in a non-metallic electrical box
to protect wireless signal strength.
Visit the Legrand website at www.legrand.us/radiant/homekit.aspx to learn more about
your smart device.

4
what you need
REQUIRED:
Phillips-head screwdriver
Flat blade screwdriver
YOU MAY ALSO NEED:
Non-contact voltage tester, pliers, wire cutter, wire stripper, electrical tape,
flashlight, radiant®screwless wallplate (included), wiring leads (included), and
wire nuts (included)
NOTE: Exercise caution when using power tools. Overtightening the screws can
damage the device.

5

6
getting to know your dimmer
Item Name Description
1 Paddle Switch
• Press the top of the paddle to turn the light on or double-
tap to raise the dimming percentage to 100%.
• Press the bottom of the paddle to turn the light off.
• To return the dimmer to factory default, press and hold the
top of the paddle for 15 seconds. Then, remove the device
from the Legrand Home app (or Apple Home app).
2LED Locator
Light
Indicates the current state of the device. Refer to
“LED Locator Light Explanations” for detail.
3
Dimmer Paddle
and LED Light
Level
Controls and displays the dimming level:
• Press (+/-) to adjust the dimming level incrementally.
• Press and hold (+/-) to quickly change the dimming level.
4 Air Gap Switch Completely turns off the dimmer. Use when changing
light bulbs.

7
1
2
3
4
NOTE: When it is turned on, the dimmer recalls the most
recent dimming level.
LED LOCATOR LIGHT EXPLANATIONS
LED
Color State of Light Explanation
Slowly Flashing
Amber
Device is attempting to connect to
the network
Solid White Connected to Wi-Fi and turned off
No Light Device is on
Rapidly Flashing
Amber
N-Way Pairing mode: device is
ready to pair with the remote(s)
Flashing Red Warns of a shutdown or short circuit

8
installation & setup
step one
|
turn off the power for your device at the
circuit breaker
Flip the existing light switch multiple times to confirm the power is off.
NOTES:
• If there are multiple devices next to your existing light switch, make sure power is
off at the circuit breaker for all of those devices.
• For multi-way installations using a remote dimmer, follow the instructions for the
remote device (HKRL60).

9
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON

10
installation & setup
step two
|
remove the existing device
Check for the following wires:
1HOT or LINE: Receives power from the circuit box. Referred to as “hot” for the
purposes of this guide. Do not touch or let “hot” wires contact other wires.
2LOAD: Directs power to your light(s).
3NEUTRAL: Creates a path to return current to the power source when the
device is off. Required for your dimmer installation.
4GROUND: Provides a safe path for electricity in the event of a short circuit.
NOTE: Refer to the “faqs” on page28 if you are unsure of your wiring.

11
OFF
ON
OFF
ON
OFF
ON
VOLTAGE
TESTER
Load
Supply
“Hot”

12
installation & setup
step three
|
wire the smart dimmer
When connecting each wire, loosen the terminal screw, insert the wire into a
terminal slot, and tighten the terminal screw until the wire is secured.
1Connect the neutral wires to the WHITE terminal slots.
2Connect the load wire to any LOAD terminal slot.
3Connect the hot wire to any HOT terminal slot.
4Connect the ground wire to the green wiring lead on the device. Use a wire nut
to secure the wires together.
NOTE: If you need extra length on your wires, wire leads are included in your packaging. Cap
any unused wires from the wall using the included wire nuts.

13
OFF
ON
OFF
ON
OFF
ON
Load
Supply
“Hot”
Terminal screw
Terminal
slot
NOTE: For multi-gang installations, refer
to “specifications” on page24.

14
installation & setup
step four
|
secure the smart dimmer
1Gently fold the wires into the electrical box. Be careful not to pinch a wire or
loosen anywire nuts.
2Use the device screws to secure the smart dimmer to the electrical box. Do
not fully tighten the screws.

15

16
installation & setup
step five
|
test the smart dimmer
NOTE: See page 6 for feature details.
1Turn the power back on at the circuit breaker.
2Press the paddle switch to turn your light on and off.
3Use the dimmer paddle to adjust the level of your light(s).
TROUBLESHOOTING TIP:
If the device is not powering, reference the “faqs” on page28 to determine if you have
reversed the “hot” and “load” wiring.

17
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON

18
installation & setup
step six
|
attach the screwless wall plate
1Noting which side faces out, align the sub-plate over the device screws. Use
the sub-plate screws (provided) to secure the sub-plate to the smart dimmer.
2Tighten the device screws to secure the smart dimmer to the electrical box.
3Angle the end of the screwless wall plate over the top edge of the
sub-plate. Push the screwless wall plate down and in until it “snaps” into
place over the sub-plate.
NOTE: To remove the wall plate, place the tip of a flat blade screwdriver into the slot under
the wall plate and twist gently.

19
THIS SIDE OUT
MOUNT OVER DEVICE
THIS SIDE OUT
MOUNT OVER DEVICE
THIS SIDE OUT
MOUNT OVER DEVICE
1 32

20