LUTRON ST-PRO-N Sunnata PRO LED Dimmer Instruction Manual

: June 6, 2024
: Lutron

Table of Contents

Please read before installing
Turn power OFF at circuit breaker
Load types and operation
Remove existing device and connect the new dimmer (appropriately choose
- Single pole wiring
- Multi-location wiring – Tag the wire connected to the different colored
Mount the dimmer and attach faceplate
- Setup Operation
- ST-PRO-N Only
Troubleshooting
IMPORTANT
FCC/IC/IFT Information
Help
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

LUTRON ST-PRO-N Sunnata PRO LED Dimmer

Please read before installing

Sunnata PRO LED+ Dimmer
ST-PRO-N
120 V~ 50/60 Hz

250 W
LED/CFL

500 W
Inc./Hal./ELV

400 VA
MLV

Turn power OFF at circuit breaker

WARNING: ELECTRIC SHOCK HAZARD.
May result in Serious Injury or Death. Turn off power at circuit breaker orfuse before installing.

Load types and operation

Load Type

| Minimum Load| Maximum Load| Neutral|

Required Phase Mode

---|---|---|---|---

Single Gang

| End of Gang|

Middle of Gang

LED| 1 bulb| 250 W| 200 W| 150 W|

Required

| Either
MLV Transformer with LEDs|

See Application Note #559 (P/N 048559) at www.lutron.com No Derating Required

* Neutral is required for all load types.
Note: For dimming MLV fixtures, the maximum lamp wattage is typically 70%-85% of the transformer’s VA rating. For actual transformer efficiency, contact the manufacturer. The total VA rating of the transformer(s) shall not exceed the VA rating of the dimmer.

Remove existing device and connect the new dimmer (appropriately choose

ONE of the diagrams below)

Single pole wiring

Multi-location wiring – Tag the wire connected to the different colored

screw (Common screw) of the switch being removed.

** To dim from 3 or more locations, visitlutron.com/Sunnata4Way

Note: Main dimmer MUST be wired on the load side.
Up to four companion dimmers may be used.

Mount the dimmer and attach faceplate

Setup Operation

ST-PRO-N Only

Adjust Low-End Trim

Press and hold middle (LED 5) of light bar until dimmer goes to low-end and lowend setting starts to flash.
Slide up or down on the light bar.
Press and release Off to save and exit.

Phase-Select Mode

Pull out the Front Accessible Service Switch (FASS).
Press and hold On . Push in the Front Accessible Service Switch (FASS) and continue to hold On until LED 1 and LED 9 start flashing.
Release the On . LED 1 or LED 9 will be flashing to indicate current phase mode.
LED 9 – Forward-Phase
LED 1 – Reverse-Phase (default)
Touch the light bar to select the desired phase.
Press and hold On to save and exit.

See the Sunnata Dimmer MyLevel Personalization Application Note #734 (P/N 048734) at www.lutron.com/SunnataMyLevel for details on how to further adjust other settings.

Troubleshooting

Symptom

| Cause|

Action

---|---|---
Main Dimmer: LEDs 6, 8, and 9 are flashing slowly (once per second)
Some Companions: LEDs 1, 2, and 4 are flashing quickly (three times per second)
Some Companions: LEDs 7, 8, and 9 are flashing slowly (once per second)| One or more companion dimmer is on the load side of the main dimmer. All companions must be on the line side of the main dimmer.|

Swap the main dimmer with a companion dimmer that has LEDs 1, 2, and 4 flashing quickly (three times per second).
Repeat action 1 until all companions are flashing slowly (once per second) or not flashing.

Main Dimmer: LEDs 1,7,and 9 are flashing Companion: No LEDs illuminated| Wiring error|

Swap wires on black and brass terminals on main dimmer.
Ensure wiring matches wiring diagrams.

Main Dimmer: LEDs 7, 8,and 9 are flashing Companion: No LEDs illuminated| Wiring error|

Swap wires on blue and brass terminals on the main dimmer.
Ensure wiring matches wiring diagrams.

Main Dimmer: LEDs 1 and 7 are flashing Companion: No LEDs illuminated| The phase is not set to the correct setting for your load type| Change to forward- phase. Confirm load compatibility in Step 2 and use instructions in Phase- Select Mode above to change phase.
Incoming line voltage is too high| Ensure that the input voltage to the device is less than 130 V~.
Main Dimmer: LEDs 1, 2, and 3 are flashing Companion: No LEDs illuminated| Incompatible load| Check if lamp is compatible on www.lutron.com/ledfinder. Change to compatible lamp.
Hot and neutral connections are reversed| Swap wires on the black and silver terminals.
Main Dimmer: LED 5 is flashing Companion: No LEDs illuminated| Load or ambient temperature exceed ratings|

Ensure load is within ratings in Step 2. Note deratings for multi-gang applications.
Ensure ambient temperature is less than 104 °F (40 °C).
Pull FASS and replace. See Operation in the Setup section above.

Main Dimmer: LEDs 1-9 are flashing Companion: No LEDs illuminated| A. Wiring issue at main dimmer
B. Wiring issue at load or load failure
C. Improper phase selection
D. Incompatible load|

Swap wires on the silver and brass terminals on the main dimmer.
Check wiring at all the terminals.
Check for short circuits to neutral or ground in all wiring locations, including at the load.
Remove load and check if it failed as a short.
Change phase. Confirm load compatibility in Step 2 and use instructions in Phase-Select Mode above to change phase.
Check if lamp is compatible on www.lutron.com/ledfinder. Change to compatible lamp.

LED lights do not operate well or they flicker/buzz| The phase is not set to the correct setting for your load type The low-end is not adjusted
The lamp is not compatible with your Lutron dimmer|

Confirm phase mode for your load type. See Table in Step 2.
Use instructions in Phase-Select Mode above to change phase.
Perform low-end trim adjustment in Step 5.
Find a compatible lamp by visiting Lutron’s LED compatibility tool at www.lutron.com/ledfinder

For additional Troubleshooting, please visitwww.lutron.com/support

IMPORTANT

CAUTION: Use only with permanently installed fixtures with dimmable screw-in LED, dimmable self-ballasted compact fluorescent, halogen, or incandescent lamps. Use only to control the primary side of permanently installed transformer supplied low-voltage lighting, or in combination with incandescent lamps. To reduce the risk of overheating and possible damage to other equipment DO NOT use to control receptacles, fluorescent lighting fixtures, non-ballasted or externally ballasted compact fluorescent lamps, motor operated appliances or transformer supplied appliances.
Neutral is required for all load types.
Install in accordance with all national and local electrical codes.
When no “grounding means” exist within the wallbox, the NEC® 2011, Article 404.9 allows a dimmer without a grounding connection to be installed as a replacement, as long as a plastic, noncombustible wallplate is used. For this type of installation, twist a wire connector onto the green ground wire or remove the green ground wire on the dimmer and use an appropriate wallplate such as Claro or Satin Colors series wallplates by Lutron.
Protect the dimmer from dust and dirt when painting or spackling the wall.
This dimmer is not compatible with standard 3-way or 4-way switches. Use only with Lutron companion dimmers listed above.
In any 3-way/4-way circuit use only one dimmer with up to 4 companion dimmers.
Maximum wire length between the dimmer and the farthest companion dimmer is 150 ft (45 m).
Operate between 32 °F and 104 °F (0 °C and 40 °C).
It is normal for the dimmers to feel warm to the touch during operation.
Clean the dimmer with a soft damp cloth only. Do not use any chemical cleaners. For more information, please see
www.lutron.com/productcleaningrecommendations
For indoor use only.
Tighten screw terminals securely to 5 in-lb (0.55 N•m).
Fully wrap 14 AWG/12 AWG (1.5 mm2 /4.0 mm2)wires around the screw and tighten, or strip insulated 14 AWG (1.5 mm2) wires to 1/2 in (13 mm) and insert into the push-in terminals.

FCC/IC/IFT Information

This device complies with part 15 of the FCC Rules and Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation. Modifications not expressly approved by Lutron Electronics Co., Inc. could void the user’s authority to operate this equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help.
This equipment complies with FCC/ISED radiation exposure limits set forth for an uncontrolled environment.
The user should avoid prolonged exposure within 7.9 in (20 cm) of the antenna, which may exceed FCC/ISED radio frequency exposure limits.
This Class B digital apparatus complies with Canadian ICES-003.

Limited Warranty:

www.lutron.com/TechnicalDocumentLibrary/369-119_Wallbox_Warranty.pdf

For Lutron patents please visit www.lutron.com/patents

Lutron, Claro, Sunnata, LED+, FASS, and Satin Colors are trademarks or registered trademarks of Lutron Electronics Co., Inc. in the US and/ or other countries.
NEC is a registered trademark of National Fire Protection Association, Quincy, Massachusetts.
©2021 Lutron Electronics Co., Inc