Modulating Controller for Vapor?

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Gman_3
Gman_3 Posts: 27
in THE MAIN WALL
Still haven't found one. Can anyone recommmend a substitute for Honeywell L91B-1019 Modulating (discontinued) controller? Am looking for a modulating controller for a vapor steam system (0-16oz)to drive a Midco RE6850 gas burner. Thanks. Glenn

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  • Steamhead (in transit)
    Steamhead (in transit) Posts: 6,689
    The L91B 1035

    might be the best choice now- I know it will mod down from high fire at 0 PSI to low fire at 1 PSI, maybe less than 1 PSI but I haven't tried going that low yet. We have them controlling PowerFlame C3/C4 gas burners.

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  • Gman_3
    Gman_3 Posts: 27
    Modulating Vapor Controller

    Thanks, Frank. So far, it looks like it may be the best solution if I can't track down a L91B-1019. I'd really like to modulate between 0 and 10oz. Could always use the 1035 and have the existing pressuretrol cut out above 10oz.

    If anyone knows of any other applicable vapor controllers or where I can find a Honeywell L91B-1019, would appreciate it.
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