Navien NPE User Manual

WARNING
If the information in these instructions is not followed exactly, a re or explosion may result, causing
property damage, personal injury or death.
Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other
appliance.
What to do if you smell gas
Ɣ
Do not try to light any appliance.
Ɣ
Do not touch any electrical switch; do not use any phone in your building.
Ɣ
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
Ɣ
If you cannot reach your gas supplier, call the re department.
Installation and service must be performed by a qualied installer, service agency or the gas supplier.
The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code,
ANSIZ223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Code.
When applicable, the installation must conform with the Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280 and/or CAN/CSA Z240 MH Series, Mobile Homes.
* Lead Free
Keep this manual near this water heater for future reference
whenever maintenance or service is required.
* The wetted surface of this product contacted by consumable
water contains less than one quarter of one percent (0.25%) of
lead by weight.
Installation & Operation Manual
NPE Condensing Water Heaters
Model
NPE-180A
NPE-210A
NPE-240A
NPE-150S
NPE-180S
NPE-210S
NPE-240S
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Navien NPE Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Efficiency	Up to 0.96 UEF
Water Connection Size	3/4" NPT
Gas Connection Size	3/4" NPT
Ignition Type	Electronic
Max Input	199, 000 BTU/h
Venting Options	PVC, CPVC, or Polypropylene
Min Input	15, 000 BTU/h
Energy Factor	0.96
Voltage	120V
Temperature Range	140°F
Warranty	15 years heat exchanger, 5 years parts

Summary

Safety Information

About the Water Heater

Specifications

Provides technical specifications like heat capacity, flow rate, dimensions, and weight.

Installing the Water Heater

Choosing an Installation Location

Guidelines for selecting an appropriate installation site, considering clearances and utilities.

Mounting the Water Heater to the Wall

Instructions and safety precautions for securely mounting the water heater.

Connecting the Gas Supply

Detailed steps and safety warnings for connecting the gas supply line.

Connecting the Water Supply

Guidelines and procedures for connecting the cold and hot water supply lines.

Connecting the Condensate Drain

Instructions for properly draining and disposing of acidic condensate.

Venting the Water Heater

Critical safety and installation guidelines for the venting system.

Connecting the Power Supply

Procedures and safety precautions for electrical connections.

Setting the DIP Switches

Installing a Cascade System

Connecting Water Supplies

Installing a Common Vent System

Guidelines for a Common Vent System

Safety and installation guidelines for common vent systems.

Starting the Common Vent System

Connecting and Terminating the Vent Pipe

Setting Up the Common Vent System

Common Vent Termination Clearances

Operating the Water Heater

Adjusting the Water Temperature

Setting the Parameters

Appendixes

Gas Conversion

Detailed instructions and safety warnings for converting gas types.

Installation Check list

A checklist to ensure all installation steps are completed correctly.