Overview Q179A,B Gas Pilot Burner Assemblies use the flame rectification principle to prove the flame. Q179A,B are used in conjunction with a suitable electronic flame safeguard control on industrial or commercial gas and gas pilot ignited oil burners. Features Q179A is a gas pilot assembly (with a flame electrode rod) and ignition electrode, making it suitable for applications requiring an interrupted or intermittent electrically ignited gas pilot burner. Q179B has only the flame electrode and is suitable for use in continuous pilot applications. Primary aerated type burner is equipped with stainless steel fins that provide the proper flame rod area to ground area ratio for maximum flame signal and flame stabilization. Stainless steel electrode(s) are mounted in ceramic insulators, which permit electrode adjustment. Rajah connectors facilitate disconnecting (A1126 has terminal screws). Bracket permits side or end mounting. Product Specifications ApplicationFor Continuous (Standing) pilotDimensions (in.)4 5/8 in. high x 1 11/16 in. wide x 3 in. deepDimensions (mm)118 mm high x 43 mm wide x 76 mm deepIncludesFlame electrodeMountingside or end mountApprovals, Underwriters Laboratories Inc.Listed: File No. MP268, Guide No. MCCZApprovals, Canadian Standards AssociationCertified: File No. LR1620, Guide No. 140-A-2Approvals, Factory MutualApproved: Report No. 22961Type of GasNatural gas; Gas consumption--2.0 cfh (0.06 m3/hr)AerationPrimaryCompression Fitting Size1/4 in. compression coupling,6.4 mm compression couplingOrifice0.025 in. dia. (0.635 mm dia.)Wiring Terminal TypeRajahTip Style45 degree I