1. Introduction
This manual provides instructions for the safe installation, operation, and maintenance of the Lithonia Lighting LDN 6-inch New Construction LED Downlight Housing. This product is designed for commercial-grade downlight applications, offering a glare-free ceiling experience with high efficacy.
Key features include a 55-degree cutoff for reduced glare, energy efficiency exceeding 85 lumens per watt, and compatibility with nLight AIR for wireless control and 0-10V 10% dimming. It is rated for wet locations, Title 20, and Energy Star compliance, and supports MVOLT (120-277V) operation.
2. Safety Information
WARNING: Risk of electric shock. Disconnect power at the fuse or circuit breaker before installation or servicing.
- All electrical connections must be in accordance with local codes and the National Electric Code (NEC).
- If you are not familiar with electrical wiring, consult a qualified electrician.
- Do not install in areas with explosive atmospheres.
- Ensure the product is properly grounded.
- Do not modify the product in any way. Any modifications may void the warranty and create safety hazards.
- Wear safety glasses and gloves during installation.
3. Package Contents
Verify that all components are present before beginning installation:
- LDN 6-inch New Construction LED Downlight Housing
- Installation hardware (screws, wire nuts, etc.)
4. Setup and Installation
This downlight housing is designed for new construction applications and flush mounting. Professional installation is recommended.
4.1 Pre-Installation
- Turn off power at the circuit breaker or fuse box.
- Ensure the ceiling opening is correctly sized for a 6-inch downlight.
- Review all local electrical codes and requirements.
4.2 Mounting the Housing
The housing features adjustable hanger bars for secure mounting between joists.
Figure 1: Overview of the LDN 6-inch New Construction LED Downlight Housing. This image shows the complete housing unit with hanger bars and electrical junction box.
- Extend the hanger bars to span the ceiling joists. Secure them using appropriate fasteners (nails or screws, not included).
- Ensure the housing is level and securely positioned.
Figure 2: Top-down view of the downlight housing, illustrating the hanger bar attachment points and the central light fixture area.
4.3 Electrical Connections
The housing includes a junction box for wiring connections.
Figure 3: Angled view of the downlight housing, highlighting the electrical junction box and conduit connection.
- Open the junction box cover.
- Connect the building's supply wires to the fixture's wires: black to black (line), white to white (neutral), and green or bare copper to green (ground).
- For 0-10V dimming, connect the purple wire to the dimmer's positive control wire and the gray wire to the dimmer's negative control wire. Ensure the dimmer is compatible with 0-10V dimming systems.
- Secure all connections with approved wire nuts.
- Close the junction box cover and ensure all wires are neatly tucked inside.
Figure 4: Side view of the downlight housing, showing the profile and mounting brackets.
4.4 Installing the LED Trim Module (Sold Separately)
Once the housing is installed, the compatible LED trim module can be connected and secured according to its specific instructions. The housing is designed to accept various LDN series LED trim modules.
5. Operating Instructions
After successful installation and power restoration:
- Power On/Off: Operate the downlight using a standard wall switch connected to the circuit.
- Dimming: If connected to a compatible 0-10V dimmer, adjust the light output by manipulating the dimmer control. The fixture supports 10% 0-10V dimming.
- Wireless Control (nLight AIR): If equipped with nLight AIR capability, refer to the nLight AIR system manual for instructions on wireless control and connectivity.
6. Maintenance
The Lithonia Lighting LDN LED Downlight Housing requires minimal maintenance.
- Cleaning: Ensure power is off before cleaning. Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- LED Longevity: The integrated LED light source is designed for long life and does not require bulb replacement.
- Inspection: Periodically inspect the fixture for any signs of damage or loose connections. If damage is found, disconnect power and contact a qualified electrician.
7. Troubleshooting
Before troubleshooting, ensure power is disconnected at the circuit breaker.
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | No power to the fixture. Loose wiring connection. Faulty switch. | Check circuit breaker. Verify all wire connections are secure. Test or replace the switch. |
| Light flickers or dims improperly. | Incompatible dimmer. Loose dimming wires. Faulty LED driver (internal). | Ensure dimmer is 0-10V compatible. Check purple and gray wire connections. Contact customer support if issue persists. |
| Light output is lower than expected. | Dimmer set too low. Incorrect voltage supply. | Adjust dimmer to maximum setting. Verify supply voltage (120-277V). |
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | LDN6 35/15 MVOLT GZ10 HSG |
| Brand | Lithonia Lighting |
| Light Source Type | LED |
| Brightness | 1500 Lumens |
| Color Temperature | 3500 Kelvin (Neutral White) |
| Wattage | 18 watts |
| Efficiency | >85 lumens per watt |
| Voltage | MVOLT (120-277V) |
| Dimming | 10% 0-10V Dimming |
| Installation Type | Flush Mount (New Construction) |
| Material | Aluminum |
| Product Dimensions | 11.75"L x 12.63"W x 6.44"H |
| Item Weight | 4.16 pounds |
| Ratings | Wet location, Title 20, Energy Star |
| Connectivity Protocol | Wireless (nLight AIR capable) |
9. Warranty
This Lithonia Lighting product is covered by a 5-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. For full warranty terms and conditions, please refer to the official Lithonia Lighting warranty documentation or contact customer support.
10. Support
For technical assistance, replacement parts, or warranty claims, please contact Lithonia Lighting customer support.
- Manufacturer: Lithonia Lighting
- Online Resources: Visit the official Lithonia Lighting Store on Amazon for additional product information and support.
