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Re: HONEYWELL BP900 Backflow Preventer

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Posted by Mike on September 22, 2009 at 20:48:36:

In Reply to: Re: HONEYWELL BP900 Backflow Preventer posted by mike on September 21, 2009 at 19:52:40:

: : In most areas, adding a backflow preventer is involved with the local water supply. If this is about a well system, then that isn't involved.

: : Operationally, the backflow overcomes at least 40 psig, so vertical wouldn't be a pressure difference problem; but I'd call Honeywell to find out, as the drawings for the device show it only in the horizontal position.
: : http://www.alpinehomeair.com/_viewresource.cfm?resourceID=1096

: :
: : "Vertical installation of backflow preventers will be accepted if the device is approved by the State for that type of configuration. ..."
: : http://www.westchestergov.com/health/Forms/PublicWaterSupply/Request_to_Install_Backflow_Device.pdf

: : http://www.socalabpa.org/InstallationCriteria.pdf
: I called Honeywell and they were useless after it took forever to get through.
: Comfort calc.com forum, states I dont need it for a low pressure steam system. I dont know. I may just install vertical and see what happens unless there are some other suggestions? Any new hlp is appreciated

I moved some piping and installed the back flow in the horizontal position as in the picture. Honeywell was no help here.

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