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Navien NPN-160U User Manual

Navien NPN-160U
75 pages
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Getting Service
If your water heater requires service, you have several options for getting service:
Contact Technical Support at 1-800-519-8794 or on the website: www.navieninc.com.
For warranty service, always contact Technical Support first.
Contact the technician or professional who installed your water heater.
Contact a licensed professional for the affected system (for example, a plumber or electrician).
When you contact Technical Support, please have the following information at hand:
Model number
Serial number
Date purchased
Installation location and type
Error code, if any appears on the front panel display
800.519.8794 www.navieninc.com
20 Goodyear lrvine, CA 92618
Installation & Operation Manual
NPN Non-Condensing Water Heaters
TANKLESS WATER HEATERS · BOILERS
Version: 1.0 (January. 2021)

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Navien NPN-160U Specifications

General IconGeneral
Fuel TypeNatural Gas/Propane
Energy Factor0.96
Warranty (Heat Exchanger)15 years
Warranty (Parts)5 years
Gas Connection3/4" NPT
Water Connection3/4" NPT
Electrical Requirements120V, 60Hz
Minimum BTU15, 000 BTU/H
TypeTankless Water Heater
Heating Capacity160, 000 BTU/hr
Ignition TypeElectronic Ignition
Venting2 inch PVC/CPVC
Max. Output (BTU)160, 000 BTU/hr

Summary

Safety Information

About the Water Heater

Items Included

Lists items included in the water heater package.

Accessories

Details optional accessories available for the water heater.

Specifications

Provides detailed technical specifications for the water heater models.

The Front Panel

Explains the controls and display functions of the water heater's front panel.

Components

Shows diagrams and lists key internal components of the water heater.

Dimensions

Displays diagrams and lists the physical dimensions of the water heater.

Rating Plate

Explains how to read and understand the water heater's rating plate information.

Installing the Water Heater

Choosing an Installation Location

Guides on selecting an appropriate installation site, considering clearances and utilities.

Mounting the Water Heater to the Wall

Provides instructions and safety precautions for securely mounting the unit.

Connecting the Gas Supply

Details the procedures and safety warnings for connecting the gas supply.

Connecting the Water Supply

Outlines the steps and guidelines for connecting the water inlet and outlet.

Venting the Water Heater (Indoor Models Only)

Covers essential safety and installation guidelines for proper venting of indoor models.

Connecting the Power Supply

Explains safe and correct procedures for connecting the electrical power supply.

Setting the DIP Switches

Describes how to configure the water heater's functionality using DIP switches.

Configuring the Remote Controller System

Included Items

Lists the components included with the remote controller system.

Connecting the Extension Cable

Details how to connect the extension cable between the water heater and remote controller.

Attaching the Wall Mounting Bracket

Explains how to install the wall mounting bracket for the remote controller.

Remote Controller

Describes the functions and display of the remote controller unit.

Multi Remote Controller System

Guides on setting up and configuring multiple remote controllers.

Entering Lock Mode

Instructions for activating the controller's child lock mode.

Setting the Clock

Steps for setting the current time on the remote controller.

Setting the Recirculation Timer

Instructions for programming the hot water recirculation timer settings.

Starting Recirculation

How to manually start the hot water recirculation feature.

Canceling All Timer Settings

Procedure to clear all programmed timer settings on the controller.

Installing a Cascade System

Connecting Water Supplies

Illustrates options for plumbing water supplies in a cascade system.

Connecting the Communication Cables

Details how to connect communication cables for cascade system setup.

Appendixes

Covering the Clamps with Front Cover Cap

Instructions for covering clamps with front cover caps after installation.

Technical Data

Contains technical data like pressure drop curves for various models.

Wiring Diagram

Provides a detailed wiring diagram for the water heater components.

Ladder Diagram

Presents a ladder diagram illustrating the electrical control logic.

Component Assembly Diagrams and Parts Lists

Shows exploded views and part numbers for major assemblies.

Installation Check list

A checklist to ensure all installation steps and requirements are met.

Navien H2Air Add-on Controller Kit (Optional)

Information about an optional controller for space heating and DHW.

Navien HotButton Kit (Optional)

Details on an optional kit for efficient DHW recirculation.

Requirements for the State of Massachusetts

Specific installation requirements for Massachusetts.

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