Belimo B252 Valve 320788-704 What components are included in
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Belimo B252 Valve 320788 704 What components are included in What components are included in the kit This specific Fenwal 35 65 series model is configured for no pre purge (0 seconds) operation with a 4 second Trial for Ignition (TFI) and a 3 try ignition sequence to ensure reliable startup in demanding environments