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Honeywell pressure switch
Has anyone noticed a lot of these Honeywell pressure switches failing on Luxaire/York furnaces? Its the one that measures pressure difference between the exaust and intake on direct vent systems.
The switch I'm looking at is a model 9371-DO-HS-0010 and it has failed already in less than a year after replacing the first time. Now, giving it a bump will get it working again for a while until it sticks again (sounds real safe, right?).
Weil-McLain EG-40 connected to 392sqft of radiation via two 2" risers into a 3" drop header and 2" equalizer. ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
Typical operating pressure 0.5 - 1.0 inch wc.
Steam system pictures updated 1/25/15.https://picasaweb.google.com/thetube0a3/Boiler?authkey=Gv1sRgCImUxIqv9436MQ#Don't push the envelope, eliminate it.
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