Lithonia Lighting 2GTL 4 48L EZ1 LP835 LED Lensed Troffer Instruction Manual

1. Product Overview

The Lithonia Lighting 2GTL 4 48L EZ1 LP835 is a 2-foot by 4-foot white LED lensed recessed troffer designed for various indoor applications. This fixture provides a low-maintenance lighting solution with extended service life and consistent color output.

Key features include:

• Durable housing constructed from 22 gauge cold-rolled steel for safe handling.
• Long-life LEDs paired with high-efficiency eldoLED drivers, ensuring 90% lumen maintenance at 60,000 hours.
• Output of 4810 lumens with a 3500K bright white color temperature.
• eldoLED driver offers dimming capabilities, flicker-free operation, low-current inrush, 89% efficiency, and low EMI.
• Highly transmissive pattern lens diffuses light effectively without compromising output.
• LED boards feature plug-in connectors for simplified replacement or servicing.
• Suitable for damp location installations.

Figure 1: Lithonia Lighting 2GTL 4 48L EZ1 LP835 LED Lensed Troffer. This image displays the complete recessed LED troffer unit, highlighting its white finish and lensed design.

2. Safety Information

Please read and understand all instructions before beginning installation. Failure to follow these instructions may result in electric shock, fire, or other hazards that could cause property damage or personal injury.

• WARNING: Risk of electric shock. Disconnect power at the fuse or circuit breaker before installing or servicing.
• WARNING: Risk of fire. Use only with specified voltage and wattage.
• Installation must be performed by a qualified electrician in accordance with all national and local electrical codes.
• Ensure the fixture is securely mounted to prevent falling.
• Do not handle live components.
• Do not modify the fixture in any way.
• Keep combustible materials away from the lamp.

3. Package Contents

Verify that all components are present and undamaged before proceeding with installation.

• 1 x Lithonia Lighting 2GTL 4 48L EZ1 LP835 LED Lensed Troffer Fixture
• Integrated LED Bulb(s)

4. Installation

This fixture is designed for recessed ceiling installation. Refer to local building codes and the provided mounting data for proper installation.

4.1 Pre-Installation Steps

1. Turn off power at the circuit breaker or fuse box.
2. Carefully unpack the fixture and inspect for any damage.
3. Ensure the ceiling opening dimensions are appropriate for a 2-foot by 4-foot recessed fixture.

4.2 Mounting Instructions

The fixture is designed for easy installation in suspended grid ceilings. The housing is lighter-weight for safe handling.

• For lay-in (exposed or concealed grid) installations, ensure the fixture rests securely within the grid.
• For overlapping flanged trim with swing-gate hangers, refer to the detailed mounting data diagram for proper engagement.
• Secure the fixture to the building structure using appropriate methods as required by local codes.

Figure 2: GTL Series General Purpose Recessed LED Troffer. This image shows the product in a commercial office setting, illustrating its intended application and design.

Figure 3: Performance and Mounting Data for 2GTL LED Troffer. This diagram provides technical specifications including photometric data, coefficients of utilization, and detailed mounting instructions for various ceiling types, including lay-in and flanged trim options.

4.3 Electrical Connections

1. Connect the fixture's electrical wires to the building's supply wires according to the wiring diagram (typically found on the fixture or in separate documentation).
2. Ensure all connections are secure and properly insulated.
3. If using dimming functionality, connect the eldoLED driver control wires to the appropriate dimming control system.

5. Operating Instructions

Once installed and wired correctly, the Lithonia Lighting 2GTL 4 48L EZ1 LP835 LED Lensed Troffer operates as a standard lighting fixture.

• Power On/Off: Control the fixture using a standard wall switch connected to the electrical circuit.
• Dimming: If connected to a compatible dimming system, the light output can be adjusted via the dimming control. The eldoLED driver ensures flicker-free dimming.

Figure 4: Color Temperature Comparison. This image illustrates the visual difference between 2700K (Warm White), 3500K (Bright White), and 4000K (Cool White/Daylight) light. The 2GTL 4 48L EZ1 LP835 model provides 3500K bright white light.

6. Maintenance

The Lithonia Lighting 2GTL 4 48L EZ1 LP835 LED Lensed Troffer is designed for low maintenance and long life.

• Cleaning: To clean the fixture, ensure power is off. Use a soft, damp cloth to wipe the lens and housing. Avoid abrasive cleaners or solvents.
• LED Replacement: The integrated LED boards are designed for extended service life. In the event of a malfunction, the LED boards include plug-in connectors for easy replacement by a qualified technician. Do not attempt to replace individual LEDs.

7. Troubleshooting

If the fixture is not operating correctly, refer to the following common issues and solutions:

If issues persist after attempting these solutions, contact a qualified electrician or Lithonia Lighting customer support.

8. Specifications

9. Warranty and Support

For warranty information or technical support, please contact Lithonia Lighting directly. Keep your purchase receipt and model number (2GTL 4 48L EZ1 LP835) available when contacting support.

You can visit the official Lithonia Lighting website for contact details and additional resources: Lithonia Lighting Store