10-1. Burners
Unit Part # #101 Takagi Part # EKH5W Checkpoint N/A
Function
There are 2 types of burners in the water heater: the gas-rich burner
stabilizes the flames within the combustion chamber and the air-rich burner
produces more heat in the combustion chamber. The burners facilitate the
air/gas mixture necessary to produce the proper heat during the
Failure events
1. Unable to initialize/sustain combustion.
2. Dust or soot deposit on the burner surface.
3. Cracks on the burners.
4. Gas leakage from the burners.
Effects on the water
heater if burners fails
1. Unexpected combustion.
2. Unstable flame conditions and/or flame loss.
3. Ignition failure.
4. Back-firing.
Error codes when the
burners fails
101 111 121 991
Diagnostic
Visual inspection: excessive dust deposit on the burner surface and/or
unstable flame conditions during operation.
Color/Number of wires N/A
The burner for the T-D2-IN and T-D2-OS has the “46V” mark as shown below.
7-1/2" (189.6mm)5-1/4" (132.3mm)
9" (229mm)
46V
"46V" mark
Burner damper (#112 / EK412)
The burner damper is
not included in EKH5W.
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