Honeywell PROTECTORELAY OIL BURNER CONTROLS THESEONE PIECE STACK MOUNTEDOILBURNER PRIMARY CONTROLS CYCLE THE BURNER ON THERMOSTAT DEMAND AND SHUT DOWN THE BURNER ON FLAME LOSS OR SYSTEM MALFUNC TION Combine a Protectorelay unit for cycling the burner and a Pyrostat flame detector for sensing temperature changes of flue gases up to 1000 F 556 C RA116A is used with intermittent ignition burners formerly called constant ignition burners RA117A and
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