INSTALLATION INSTRUCTIONS

• Push-to-reset safety switch in dust-resistant  enclosure. 

• Built-in protection against ignition crossover in flame  rod systems. 

• Does not start if flame-simulating failure occurs in  flame detector circuit. 

• Automatic safety shutdown if flame fails on start, or if  flame not re-established after flame failure. 

• Flame signal current is directly measurable at test jack. 

• Line or 24 volt, automatic or manual controller can be  used. (Manual controller must open circuit on either  power or flame failure.) 

• Captive mounting screws allow easy mounting and  removal. Thermoplastic mounting base. 

• Optional alarm circuit indicates safety shutdown.

APPLICATION 

The RA890F Protectorelay™ Primary Control is a  nonprogramming, amplifying relay that provides solid state  electronic flame safeguard protection for industrial and  commercial gas, oil, or combination gas-oil burners.

FEATURES

• Employs rectification principle of electronic flame  detection using a flame rod, rectifying photocell, or  C7012A,C Ultraviolet Flame Detector. 

• Clipping pilot link jumper wire permits use with  standing pilots. 

• Can directly replace RA890E and mount on same  Q270A Subbase. 

• Solid state circuitry eliminates vacuum tube  replacement and increases resistance to vibration.  Power application not required during Off cycle; no  tube to warm up before starting.