vaporstat mounting [best place]

nicholas bonham-carter

i wonder if my vaporstat mounted on the factory [peerless 211-a] manifold in capable of the sensativity i would like to have.it seems to lag behind the settings and a low pressure gauge seemed to be also less accurate--possibly due to the water which stands in the manifold.maybe this location is ok for the pressuretrol but not for a vaporstat set at 6 oz.[trying to see how low i can go!]
alternatively mounting on the steam supply pipes would require drilling and tapping through a 6in. dia. fitting.
could i mount it on an unused riser outlet or would the heat get through the pigtail.
thank you all for your constant help on this veritable cornucoppia of knowledge.--nbc

David Nadle

Vaporstat needs protection from steam

It wasn't clear that you intended to move pigtail and vaporstat together but that's what you'd have to do. Actually you'd have to add a pigtail, since you need to keep the original at the boiler for the gauge.

I'm no expert but personally I don't think moving the vaporstat away from the boiler is worth the effort. If I was going to do that I would leave the pressuretrol in place at the boiler and wire the remote vaporstat in series.

Steamhead (in transit)

How about

taking a pic and posting it here, so we can see what you have?

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nicholas bonham-carter

vaporstat mounting [best place] contd.

here is the peerless manual pdf showing on page 33 the mounting for the pressure gauge,p-trol,and v-stat.i think there is enough water mass in this manifold to affect the low pressure readings,so that's why i thought of moving it to the unused steam riser with a pigtail.it sometimes overshoots the pressure setting [8oz.] up to 16 oz.
also shows how to pipe more than 1 boiler together--p 22.--
sorry to give you the whole pdf-could not figure out how to divide it up
nbc

nicholas bonham-carter

nicholas bonham-carter