|
HeatSponge Boiler Economizers "Saving The World From High Fuel Costs" Natural gas will never be inexpensive again making a boiler economizer more important than ever. HeatSponge offers products for boilers ranging from 50 HP to 150,000 pph. Improving boiler efficiency results in reduced pollution levels. Check how much money you can save by visiting our website. Click Here For On-Line Performance and Pricing. |
Posted by HeatPro on December 30, 2007 at 13:54:52:
In Reply to: Re: Steam boiler using water posted by Bruce on December 28, 2007 at 17:58:53:
: Thanks. I checked and when the boiler cycled the pressure gauge peaked at 3.5 psi. The Honeywell controller PA404A-1009 is set to 2.
As the 1009 is a replacement for the 1033, it should have a subtractive differential, so the pressure should stop at 2, except for some over-ride by the excess metal heat at the end of the cycle. Tweak the pressure down to 1-1/2 by turning the square screw at the top to see if it results in getting the pressure a bit lower - or if the control is bad. With the differential knob inside adjusted to minimum, the control should work normal with no skipped cycles - if not, time for a new one; you need a dependable, safe pressure control.