background image

Warranty        23

Effective

This 10/15 year limited pro-rated warranty on heat exchangers, 3/5 
year limited warranty on parts, and 1 year limited-labor warranty 
(“Warranty”) covers defects in materials or workmanship when the 
Navien NHB Boiler (“Product”) is installed by a properly licensed 
plumber or contractor and operated in strict compliance with the 
Installation & Operations manual procedures, subject to the terms 
within this Warranty document. Improper installation or use will 
void this Warranty. This Warranty runs from date of installation and 
extends to the original purchaser and subsequent owners, but only 
while the Product remains at the site of the original installation. 
This Warranty includes both a limited and pro-rated warranty as set 
forth below.

What is covered?

Subject to the foregoing terms, Navien will repair or replace the 
covered Product or any part or component that is defective in 
materials or workmanship for a period of five (5) years in regard 
to parts and up to ten (10) Years in regard to the heat-exchanger. 
Navien will pay labor charges for the repair subject to Navien’s 
prior written approval and in accordance with Navien’s schedule 
of approved labor allowances for a period of one (1) year from the 
date of installation. All repair parts must be genuine Navien parts. 
All repairs and replacements must be performed by an individual 
or servicing company that is properly licensed to do the type of 
repair.

When the Product is or has ever been used for anything other than 
single family residential application (hereinafter “Commercial”) 
then the parts warranty will be reduced to three (3) years and the 
heat exchanger warranty to seven (7) years as indicated in the pro-
rated portion of the warranty below.

During the applicable warranty period, replacement of the 
Product or components may be authorized by Navien only. Navien 
does not authorize any person or company to assume for it any 
obligation or liability in connection with the replacement of 
the Product or its components. If it is determined that repair or 
replacement of a part, under warranty, is not possible, the Product 
will be replaced with a new Product having at least the same BTU 
capacity as the product at issue. The replacement component or 
product will be warranted only for the unexpired portion of the 
applicable warranty period for the original component or Product.

The heat exchanger is covered by Navien’s pro-rated limited 
Warranty for defects in material and workmanship at a cost to the 
customer equal to a percentage of the Manufacturer’s Suggested 
Retail Price (MSRP), at the time the warranty claim is approved 
by Navien, as indicated in the following Coverage Table for Heat 
Exchangers Only. This pro-rated warranty only applies to the 
replacement of the heat exchanger and does not include labor, 
shipping, other parts, delivery or installation. In order to obtain this 
warranty, the customer must pay the applicable pro-rated amount 
as indicated in the following Coverage Table for Heat Exchangers 
Only. Once the customer pays the pro-rated amount, then Navien 
will ship the heat exchanger directly to the service provider.

Coverage Table for Labor and Parts Only

Residential*

Commercial

Labor

1 year

Labor

1 year

Parts

5 years

Parts

3 years

* Applies only to single family, residential locations.

Coverage Table for Heat Exchangers Only

Residential*

Commercial

Years

Percentage 

Paid by 

Customer

Years

Percentage 

Paid by 

Customer

1 to 10

0 %

1 to 7

0 %

11

30 %

8

50 %

12

40 %

9

60 %

13

50 %

10

70 %

14

60 %

15

70 %

* Applies only to single family, residential locations.

How do I get service?

You must contact the original installer of your Product. Your 
installer will need to contact Navien to report the issue. If the 
original installer cannot be identified or you no longer choose to 
use that service provider, you may choose any service provider 
who is properly licensed to complete the necessary repair. The 
installer and/or service provider must comply with Navien’s 
warranty service and return policy procedures as available on 
Navien’s website including contacting Navien’s Technical Support 
Department at (800) 519-8794, option 2, prior to commencing any 
service.

Proof of the date of installation must be provided to Navien. At 
Navien’s request, the defective Product or part must be returned 
to Navien. When the Product is installed in new construction, the 
date of installation shall be established as the date upon which the 
end-user takes title to the real property. If proof of the installation 
date is unavailable, then six months after the date of manufacture 
will be used.

LIMITED WARRANTY NAVIEN, INC.

Summary of Contents for NBH Series

Page 1: ...our gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified...

Page 2: ...oiler On or Off 9 3 2 Adjusting the Temperature 9 3 3 Viewing Basic Information 10 3 4 Resetting the Boiler 11 4 Maintaining the Boiler 12 4 1 Cleaning the Boiler 12 4 2 Draining the Boiler 12 4 3 Cle...

Page 3: ...tment C Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas co...

Page 4: ...er using a lower temperature setting Do not leave children the elderly or disabled persons unsupervised Do not allow small children to play unsupervised in the bathroom Do not allow anyone to change t...

Page 5: ...ler in any other country will void the manufacturer s warranty Should overheating occur or the gas supply fail to shut off turn off the manual gas valve to the appliance WARNING Shut off the gas suppl...

Page 6: ...e temperature and if necessary initiates a safety heating cycle to prevent internal equipment damage due to freezing temperatures Short Circuit Protection Any short circuit occurring in the boiler s e...

Page 7: ...n Refer to the following table for detailed information a Space heating mode f S Supply water control Indicates space heating mode operation Indicates supply water control status b Error g R Return wa...

Page 8: ...ler s operation such as space heating and DHW supply temperatures Refer to the following table for detailed information k Diagnostics button n Up button For installers only Increases the temperature l...

Page 9: ...olute MIN to 149 F 65 C Absolute MAX You can adjust the temperature range in the parameter settings menu The boiler will retain your settings during a power outage WARNING Follow the instructions belo...

Page 10: ...ting the DHW Indirect Supply Temperature WARNING Before adjusting the water temperature read To prevent burns on page 4 carefully Water above 120 F can cause instant scalding severe burns or death To...

Page 11: ...Troubleshooting section of this manual or contact Technical Support at 1 800 519 8794 Display Description psi O R S R Boost interval time set by installer psi O R S R Space heating water pressure in...

Page 12: ...e resistant but it is not waterproof Keep it as dry as possible 4 2 Draining the Boiler You will need to drain the boiler before performing maintenance tasks such as to prevent the boiler from freezin...

Page 13: ...clean the air intake filter every 3 4 months To clean the air intake filter 1 Press the Power button on the front panel to turn off the boiler MODE 2 Disconnect the power supply to the boiler 3 Remov...

Page 14: ...of the boiler 6 Remove the filter from the plastic assembly Dust and rinse it with clean running water 7 Allow the filter to dry completely 8 Place the filter assembly back into the boiler and secure...

Page 15: ...ringdefect andtherefore Navienwillnotwarrant any damages due to freezing The installer is responsible for ensuring that there is sufficient make up air to avoid such a situation and the owner is respo...

Page 16: ...emove and clean space heating strainer Remove and clean inlet water filter 4 5 Maintenance Schedules Regular maintenance is required to operate the boiler safely Refer to the maintenance schedules bel...

Page 17: ...aminants listed in Installation Operation Manual If any of these are present in the boiler intake air vicinity they must be removed If they cannot be removed reinstall the air and vent lines per the I...

Page 18: ...ring the valve inoperative Such conditions are not detectable unless the valve and its components are physically removed and inspected This inspection must only be conducted by a plumbing contractor o...

Page 19: ...iring making sure wires are in good condition and securely attached Checking the Control Settings 1 From the front panel enter the Diagnostics Mode and check all settings Adjust settings if necessary...

Page 20: ...llow the solution to circulate through the boiler Refer to the manufacturer s literature for information about the circulation time 10 Rinse the cleaning solution from the boiler a Remove the free end...

Page 21: ...the system in stand by Make sure the power is on and plugged into the outlet with the correct voltage Press the Power button and raise the setting temperature Make sure the boiler is turned on Is the...

Page 22: ...eration heating supply thermistor Auto reset E218 Abnormal operation heating return thermistor Alarm E271 Temperature differential limit Alarm E278 Abnormal operation system supply thermistor Alarm E2...

Page 23: ...at issue The replacement component or product will be warranted only for the unexpired portion of the applicable warranty period for the original component or Product The heat exchanger is covered by...

Page 24: ...tion for non recommended uses failure to follow or comply with the User s Operational Manual etc Improper maintenance including but not limited to scale buildup vent blockage failure to maintain etc M...

Page 25: ...Notes...

Page 26: ......

Page 27: ...tact 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 Da...

Reviews: