Westinghouse WGR050NG076 50-Gallon High-Efficiency Natural Gas Water Heater Instruction Manual

1. Introduction

This instruction manual provides essential information for the safe and efficient installation, operation, and maintenance of your Westinghouse WGR050NG076 50-gallon high-efficiency natural gas water heater. Please read this manual thoroughly before attempting any installation or operation. Retain this manual for future reference.

The Westinghouse WGR050NG076 is a 50-gallon high-efficiency modulating/condensing natural gas water heater featuring a 76,000 BTU burner with ultra low-NOx technology. It boasts a 316L stainless steel inner tank for superior corrosion resistance and offers 97% thermal efficiency, making it Energy Star rated. The unit includes an easy-to-control LCD display with an Eco mode for optimized fuel consumption.

2. Safety Information

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

• Professional Installation Required: Installation and service of this water heater must be performed by a qualified installer or service agency. This includes all gas, water, and electrical connections, as well as venting.
• Gas Safety: This appliance uses natural gas. Ensure all gas connections are leak-free. If you smell gas, immediately evacuate the area, do not operate electrical switches, and contact your gas supplier or fire department.
• Ventilation: Proper ventilation is critical for safe operation. Ensure the unit is installed in an area with adequate air supply for combustion and that the exhaust venting system is correctly installed and maintained.
• Water Temperature: Hot water can cause severe burns. Exercise caution when setting water temperature. Higher temperatures increase the risk of scalding.
• Electrical Safety: Ensure the water heater is properly grounded and all electrical connections comply with local codes. Disconnect power before servicing.
• Drainage: A custom-built drain pan may be required according to manufacturer specifications, especially for attic installations, to contain potential leaks.

3. Product Overview

3.1 Key Features

• High Efficiency: 97% thermal efficiency, Energy Star certified.
• Capacity: 50-gallon tank, suitable for households of 5 or more people, providing 133 GPH (Gallons Per Hour) first hour delivery.
• Durable Construction: 316L stainless steel inner tank for superior corrosion resistance, laser welded for precision.
• Advanced Burner: 76,000 BTU burner with Ultra Low-NOx technology.
• User Interface: Easy-to-control LCD display with Eco mode for minimum fuel consumption.
• Aesthetics: Faux stainless steel exterior finish.

3.2 Components

The water heater consists of the main tank, a gas burner assembly, an exhaust venting system, an LCD control panel, and various water and gas connections. Refer to the detailed diagrams in the full installation manual for specific component locations.

4. Setup and Installation

IMPORTANT: Installation of this water heater requires specialized knowledge and tools. It must be performed by a qualified and licensed professional (e.g., plumber, HVAC technician) in accordance with all local and national codes and regulations.

• Location: Choose a suitable indoor location with adequate space, proper drainage, and access for maintenance. Consider the unit's dimensions (46.75 x 23 x 46.75 inches) and weight (155 pounds).
• Gas Supply: Ensure the gas supply line is appropriately sized for the 76,000 BTU input. Consult a professional for gas line sizing and connection.
• Water Connections: Connect the cold water inlet and hot water outlet lines. Install a temperature and pressure relief (T&P) valve as required by code.
• Venting: This is a condensing unit and requires specific venting materials and configuration. The active ventilation fan will turn on when the burner fires. Ensure proper installation of the exhaust system to safely expel combustion byproducts.
• Condensate Drain: A condensate drain line must be installed to handle the acidic condensate produced by the high-efficiency operation.
• Electrical Connection: Connect the unit to a dedicated electrical circuit as specified in the full installation manual.
• Combustion Tuning: This unit may require precise combustion tuning after installation to achieve optimal efficiency and reliable operation. This procedure typically requires specialized equipment (e.g., a combustion analyzer) and should be performed by a qualified HVAC technician.

5. Operating Instructions

5.1 Initial Startup

1. Ensure all water and gas connections are secure and leak-free.
2. Fill the water heater tank completely with water before turning on the gas supply. Open a hot water faucet in your home to allow air to escape until water flows steadily.
3. Turn on the gas supply to the unit.
4. Restore electrical power to the water heater.
5. Follow the specific startup sequence detailed on the LCD control panel or in the full manufacturer's manual.

5.2 LCD Display and Settings

The integrated LCD display allows for easy control and monitoring of the water heater's status. Consult the full manual for detailed navigation and setting adjustments.

• Temperature Adjustment: The water heater's temperature range is 70 - 160 degrees Fahrenheit. Adjust the setpoint using the controls on the LCD panel. Lower temperatures conserve energy and reduce scalding risk.
• Eco Mode: Activate Eco mode for optimized fuel consumption and energy savings. This mode typically adjusts operation to minimize energy use during periods of lower demand.
• Status and Error Codes: The LCD display will show operational status and any diagnostic error codes. Refer to the troubleshooting section of the full manual for interpreting these codes.

6. Maintenance

Regular maintenance is crucial for the longevity and efficient operation of your water heater. Always disconnect power and shut off the gas supply before performing any maintenance.

• Annual Flushing: Drain and flush the tank annually to remove sediment buildup, which can reduce efficiency and tank life.
• Anode Rod Inspection: Inspect the anode rod every 1-3 years and replace it if significantly depleted. The anode rod protects the tank from corrosion.
• T&P Valve Test: Test the temperature and pressure relief valve at least once a year to ensure it is operating correctly. Follow manufacturer guidelines for testing.
• Vent System Inspection: Annually inspect the venting system for blockages, leaks, or corrosion. Ensure the condensate drain is clear.
• Professional Inspection: It is recommended to have a qualified technician inspect the water heater system annually, including combustion analysis and general operational checks.

7. Troubleshooting

If you experience issues with your water heater, refer to the following common troubleshooting steps. For complex problems or error codes displayed on the LCD, consult the full manufacturer's manual or contact a qualified service technician.

• No Hot Water / Insufficient Hot Water:
  • Check if the gas supply is on.
  • Verify electrical power to the unit.
  • Ensure the thermostat setting is appropriate.
  • Check for error codes on the LCD display.
  • Confirm the pilot light (if applicable) or igniter is functioning.
• Loud Ignition / Hard Start: Some users report a loud ignition sound. While this may be normal for the unit, persistent or excessively loud noises, or ignition failures, may indicate a need for professional inspection and combustion tuning.
• Frequent Fault Messages / Unit Kicks Off: This often indicates an underlying issue with combustion, venting, or sensor malfunction. Note the specific error code displayed on the LCD and consult the full manual's troubleshooting guide. Professional diagnosis is recommended.
• Water Leakage: Immediately shut off the water supply to the heater and contact a qualified plumber. Do not attempt to repair leaks yourself.

Note: Many issues, especially those related to ignition or fault codes, require specialized diagnostic tools and expertise. It is strongly advised to contact a qualified service technician for these problems.

8. Specifications

9. Warranty and Support

Warranty Information:

• Tank Warranty: The 316L stainless steel inner tank comes with a 7-year limited warranty. This warranty can be upgraded to a 10-year limited warranty when registered online with Westinghouse Water Heating.
• Parts Warranty: A 1-year limited warranty applies to all other parts.
• Refer to the official Westinghouse warranty document for complete terms and conditions.

Product Registration: To activate and potentially extend your warranty, register your product online on the Westinghouse Water Heating website.

Customer Support: For technical assistance, warranty claims, or to locate a qualified service provider, please contact Westinghouse Water Heating customer support. Contact details are typically available on the manufacturer's official website or in the packaging materials.