HVACopediaNavien · Boiler
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What the display is showing
Press Menu to open the main menu. Entries seen in the manual: 1. Status Information, 2. Space Htg Operation, 3. DHW Operation, 4. Error History, 5. EMS Data, 6. Configuration (display options).
Applies to: NHB-055H, NHB-080H, NHB-110H, NHB-150H
What to do
- Press Menu.
- Turn the Command dial to choose an entry, press it to open.
- Press Back to return.
Settings for these units
Installation clearances (indoor) · Navien NHB-H
| Side | Minimum clearance |
|---|---|
| Top | 9 in (229 mm) |
| Back | 0.5 in (13 mm) |
| Front | 4 in (100 mm) |
| Sides | 3 in (76 mm) |
| Bottom | 12 in (300 mm) |
| Vent to combustibles | 0 in |
Bracket gives 5/8 in (16 mm) from the wall; studs at 16 in on centre.
Common vent installs: 36 in above the top and 24 in in front are recommended for service.
Models that show this code
4 models in Navien NHB-H
Other codes on the same units
- Heat Capacity Status Information item 2 - Heat Capacity
- High Altitude Status Information item 24 - High Altitude
- LWCO Input Status Input/Output Status item 14 - LWCO Input Status
- Main F/W Ver Status Information item 27 - Main F/W Ver
- Model Status Information item 25 - Model
- Operation State Status Information item 1 - Operation State
- Outdoor Reset Status Information item 21 - Outdoor Reset
- Outdoor Reset Curve Status Information item 22 - Outdoor Reset Curve
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Source: Navien NHB-H Installation and Operation Manual, 11.6-11.12, p.103-109. Summarized in our own words; check the original manual for your model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.