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111'5. ZENER SAFETY BARRIER WIRING (continued) <br />B. For Vapor -Only Channel: Use Model ZSB-2 Zener Safety Barrier. <br />ZSB-2 Connect <br />Terminal To <br />1 Mother board terminal marked RED <br />2 Mother board terminal marked WHITE <br />4 Ground buss terminal <br />5 Vapor sensor RED wire <br />G Vapor sensor WHITE wire <br />8 Vapor sensor BLACK wire <br />NOTE: Be sure hoconnect the special ground wire provided to the mother board terminal <br />marked Blue and the other end hothe ground buss terminal. <br />C. For Vapor / Liquid Combination Channel: Use Model ZSB-2 Zener Safety Barrier. <br />ZSB-2 Connect <br />Terminal To <br />1 Mother board terminal marked RED <br />2 Mother board terminal marked WHITE <br />3 Mother board terminal marked BLUE <br />4 Ground buss terminal <br />5 Vapor sensor RED wire <br />G Vapor sensor WHITE wire <br />7 Liquid sensor GREEN wine <br />