Honeywell Y343B1002

FIG. B-WIRING HOOKUP FOR Y343B PACKAGE IN A TYPICAL TWO-STAGE DSI HEATING SYSTEM.

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FIG. 7-S67D SIMPLIFIED SCHEMATIC DIAGRAM.

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Contents

Main Honevwell SPECIFICATIONS 4 Q347A SPARK IGNITER-SENSOR Q354A FLAME SENSOR 392286-l IGNITION CABLE GAS CONTROLS AUXILIARY CONTROLS ;NSlAL~~lON * I S87D CONTROL MODULE Q347A SPARK IGNITER-SENSOR Q354A FLAME SENSOR AUXILIARY CONTROLS WIRING S87D CONTROL MODULE Q347A SPARK IGNITER AND IGNITION CABLE n AUXILIARY CONTROLS PRESSURE Page STARTUP AND CHECKOUT START SYSTEM CHECK SAFETY LOCKOUT RESET S87 AFTER SAFETY LOCKOUT CHECKOUT SERVICE PRELIMINARY CHECK S87D COMPONENT CHECKS IGNITION CABLE GROUNDING CONNECTIONS FLAME SENSOR CIRCUIT LOW OR UNSTEADY FLAME CURRENT Burner Flame Flame Sensor I I