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1586 Primary Control - Water Heaters - Oil Tanks Burners and Venting
1586 Primary Control - Water Heaters - Oil Tanks Burners and Venting -

Image Text: The primary controller checks the exhaust flue for heat - if it does not find any, it assumes that the oil burner is not igniting properly and shuts it down > the reset button should only be pressed once if the burner fails to come on (otherwise unburned oil will accumulate in the combustion chamber) > the illustration shows an older setup - most modern oil burners have a photocell on the burner to verify ignition > primary controller (primary relay or stack relay) > reset > chimney cleanout > heat probe > chimney > oil water heater exhaust flue (vent connector) > exhaust from water heater

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