6720866940 (2017/11) US SSB
8 | Main components
4.1 Burner head
The burner head (Fig. 4) is made of stainless steel, it supports a micro
premix ame. The burner can be accessed by removing the larger four
fan motor mounting nuts. (Fig. 5 - Fig. 6).
Fig. 4 Burner head
Fig. 5 Heat exchanger (fan motor removed - note location of green
burner gasket)
Fig. 6 Burner head
4.2 Heat exchanger
The heat exchanger (Fig. 7) is a single coil design made of stainless
steel.
Fig. 7 Heat exchanger & Burner cross-sectional view
4.3 Combustion chamber
The cylindrical combustion chamber (Fig. 7) has a top and bottom steel
ring-bands that are removable for heat exchanger servicing.
4.4 Ignition electrode
The ignition electrode (Fig. 8) is a component inserted in the burner
ange on the head of heat exchanger. It has 2 functions: ignition and
ame detection.
Fig. 8 Ignition electrode
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