Name: Navien NHB-150
Brand: Navien
Rating: 5 (1 reviews)

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NHB Service Manual 73

Version 1.0

4.9.9 Burner

Part Check Point

Function

1. Pre-Mix system reduces emissions and increase efficiency.

2. The burner facilitates the air/gas mixture necessary to produce the proper heat during

combustion.

Failure Event

1. Unable to initialize/sustain combustion.

2. Dust or soot deposit on the burner surface

3. Possible gas leakage from burners.

Effects

1. Abnormal combustion.

2. Unstable flame conditions and/or flame loss.

3. Ignition failure.

Error Code E003, E004, E012

Diagnostic

Visual inspection: Excessive deposits on the burner surface and/or unstable flame conditions

during operation.

Fuel Gas Supply

Combustion Air Supply

Burner Body

(Fuel Gas +

Combustion Air Mix Zone)

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