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Navien NHB-150 Service Manual

Navien NHB-150
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NHB Service Manual 9
Version 1.0
1.3 Symbols Used in the Instructions
IMPORTANT
Warns of a risk of damage and environmental pollution
NOTE
Indicates additional information that is important but not
related to personal injury or property damage.
1.4 Safety Precautions
DANGER
FLAMMABLE MATERIALS
Keep the area around the boiler clear and free from flammable
materials.
DO NOT place flammable liquids such as oils or gasoline, etc.
near the boiler.
DO NOT place combustibles such as newspapers and
laundry etc. near the boiler or the venting system.
DO NOT place or use hair spray, spray paint or any other type
of spray can near the boiler or the venting system (including
the vent termination).
DO NOT place anything in or around the vent terminations
that could obstruct the air flow in and out of the boiler such
as a clothes line.
1.1 Safety Definitions
The following safety symbols are used in this manual. Read and
follow all safety instructions in this manual precisely to avoid
unsafe operating conditions, fire, explosion, property damage,
personal injury, or death.
1.2 Safety Symbols
DANGER
Indicates an imminently hazardous situation which, if not
avoided, could result in severe injury or death.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in injury or death.
CAUTION
Indicates a potentially hazardous situation that, if not avoided,
could result in property damage.
1. Safety Information

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Navien NHB-150 Specifications

General IconGeneral
ModelNHB-150
CategoryBoiler
Maximum Input150, 000 BTU/h
AFUE95%
Vent TypeDirect Vent
Fuel TypeNatural Gas or Propane
Min. Input (NG)15, 000 BTU/h
Min. Input (LP)15, 000 BTU/h
Voltage120 V
Water Connection Size1 inch NPT
Gas Connection Size3/4 inch NPT
Vent Diameter3"

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