Fireye® 70D20 1072339

Fireye® Series D10-20 burner management controls provide ignition and main flame failure protection for automatically ignited oil and gas burners. In conjunction with limit operating controls and interlock devices, it automatically programs with solid state timing logic, the burner or blower motor, ignition, main fuel valve(s) and firing rate motor. The control cycles automatically when the operating control closes and also following a power interruption, but must be manually reset following a safety shutdown. The start up programming includes a safe start check on each start. If flame signal (real or simulated) is detected, the ignition will not be energized and safety lockout will occur. An open damper pre-purge and subsequent proof of the low fire position of the firing rate motor before ignition occurs at each start up. Terminals are provided for a main fuel valve proof of closure interlock, which must be closed before startup and during the pre-purge. An interlock circuit is provided for airflow switches, fuel pressure switches etc. which must be closed during the pre-purge and firing period. Control type 70D10 will initiate a safety lockout if this circuit opens during the pre-purge, ignition or firing period. Control 70D20 will recycle and initiate a complete restart if this circuit opens during the pre-purge, ignition or firing period.

Fireye® Control Chassis and Cover, 120 V, 50/60 Hz Frequency, VA Rating: 20 VA

• Has recycling running interlock circuit and does not include purge interlock circuit

• Catalog https://assets.unilogcorp.com/267/ITEM/DOC/Fireye_70D20_Catalog.pdf