Vaporstat

T. Riley

Does anyone have literature to tell me the characteristics of a Honeywell L408B1131 vaporstat? I found one listed cheap as new surplus, but no info is given in the listing.

Thanks,
Tom

Nron_9

Informaton

Try the honeywell site http://hbctechlit.honeywell.com/

Steamhead

The L408B

is a "reverse acting" Vaporstat, that is, it makes contact when the pressure rises instead of breaking contact. So you couldn't use it as a high-limit on a Vapor system.

However, it might be useful for some Heat-Timer or similar control units, or for some high-low-fire burners, or to sound an alarm if the pressure gets too high.

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