Dirty chat with mobile
Or are you just trying to establish some alarm/trip point that'll alert someone that DP across a particular filter has exceeded some value and a human should investigate the problem. It's only based upon my observations and years of experience working with mechanical systems at every level from beginning helper to the guy in charge of large installations.And then on to what I do now, which is controls (mostly DDC these days).dont be shy and enjoy with our special telephone service.I would like to know how you guys monitor dirty filter conditionusing differential pressure switches?These numbers vary from manufacturer to manufacturer, and even with filters from a particular manufacturer, the numbers vary from this type filter to some other. Set up some sort of monitoring, with some high point trip or alarming, to alert the operators/maintenance people that the filters need checked/changed NOW.But I never recommend that this be the only time or criteria for checking/changing filters.If an air flow problem actually does exist your safeties should shut down the unit anyway.
switch how do you calculate the correct differential pressure across the filter to know when hes dirty?Thanks I would like to know how you guys monitor dirty filter conditionusing differential pressure switches?switch how do you calculate the correct differential pressure across the filter to know when hes dirty? Filter types vary but say a perf 2" filter with a max velocity of 500fpm if all was well ie duct size, cfm dilivery.While I'm in the new install of controls side of things now, for over 30 years I worked in what is essentially the in-house maintenance/operator side of things.So I take a somewhat pragmatic and practical view of these things.
Detect an abnormal condition early enough to take a preventative action before a catastrophic failure.