About This Manual

This manual provides detailed instructions for the safe installation and operation of Navien NPE Condensing Water Heaters. It is crucial to read and understand all safety precautions and operational guidelines before using the product.

Key Features & Components

Discover the various components of your Navien water heater, including the front panel controls, internal parts, and supply connections. Learn about the specifications and included items to ensure a smooth setup process.

Safety First

Navien prioritizes safety. This document outlines critical safety information, including warnings and precautions regarding gas leaks, electrical hazards, and high-temperature water. Always follow the guidelines to prevent injury or property damage.

Installation & Operation

Step-by-step instructions cover everything from choosing an installation location and connecting utilities to operating the water heater and setting parameters. Information on cascade and common vent systems is also provided.

Support & Resources

For further assistance, refer to the appendixes for technical data, diagrams, and checklists. For more information on Navien products, visit Navien's official website.