Table Of Contents - Navien NHB-055H User's Information Manual

Contents
1. Important Safety Information
2. About the Boiler
2.1 Description of the Boiler
2.2 Parts of the Boiler
2.3 The Front Panel
3. Operating the Boiler
3.1 Turning the Boiler On or Off
3.2 Adjusting the System Temperatures
3.3 Accessing Basic Menu Items
3.4 Resetting the Boiler
4. Maintaining the Boiler
4.1 Cleaning the Boiler
4.2 Draining the Boiler
4.3 Cleaning the Air Intake Filter
4.4 Protecting the Boiler from Freezing
4.5 Maintenance Schedules
5. Troubleshooting
5.1 Solving Basic Problems
5.2 Understanding Error Codes
6. LIMITED WARRANTY NAVIEN, INC. 25
Product Installation Information
Model
Date Purchased
Gas Type
Serial Number
2 Contents
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6
6
6
7
9
9
9
13
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15
15
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16
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