aquastat setting

hairball

I have two aquastats. One maitains the maximum temp of the water in the furance the other wont let the thermostat in the living room turn on the ciculator pump unless the water temp in the furance it at a minumum temp. what should the second aquastat be set at?



Thank You



Chris

Unknown

there are no

There are no aquastat(s) on furance.. only boiler

hairball

oops

My bad. Boiler then

hairball

Delta t

Belive its calle the delta t. It maintains a minumum returune temp of the water.

Ron Jr._3

What model number is the aquastat ?

And is the boiler making hot water with a coil ?

hairball

hot water

Its and old richardson hot water boiler. No coil. Sorry all I can tell you is they are Honywell aquastats. You can see them at the top of the middle picture. They dont have the covers on them.

Robert O'Brien

20*

A minimum of 20* less on the B aquastat,in reality with that POS you don't even need it!

billtwocase

aquastat

Ever work on a Waterair? They had them

gennady

dual setting aquastat

hi is a boiler limit, set at 180, lo is to prevent condensation, set at 140. lo is preventing circulator from pumping constantly cold water trough the boiler. it allows to heat portion of the water at the time.