Derating boilers or furnaces,or seting them up require a anaylsis of the combustion flue gases. You need to find someone with the proper equiptment.The PCA (portable combustion analyzer) directly measures, displays, and stores the following data:
• Room Temperature in °F or °C (Primary Air/Ambient Temperature)
• Flue Gas Oxygen Content in %
• Flue Gas Temperature in °F or °C
• Flue Gas Carbon Monoxide Content (H2 Compensated) in ppm
(For analyzers having a Carbon Monoxide sensor)
• Flue Gas Nitric Oxide content in ppm
(For analyzers having a Nitric Oxide sensor)
• Pressure/Draft in Millibars, Pascals, or Inches of Water Column
(For analyzers having a draft sensor)
• Differential Pressure in Millibars, Pascals, or Inches of Water Column
(For analyzers having a draft sensor)
The PCA will compute, display, and store the following data for any of the
seven standard fuels:
• Combustion Efficiency in %
• Excess Air in %
• Flue Gas Carbon Dioxide Content in %
• Flue Gas Carbon Monoxide Content referenced to Oxygen in ppm
(For analyzers having a Carbon Monoxide sensor)
• Flue Gas Nitric Oxide Content referenced to Oxygen in ppm
I have a Barharach PCA 55 & 65 analyzers. they comes with a wireless printer. It's display is real time and sample info can be stored in memory or printed on site to a wireless infared printer. The NOX (nitrates of oxide) isn't needed for residental set up but used in reports of large commercial equiptment. I cut some of the above/below info from the pdf that can be found here: Sorry I had to remove the link since this is my first post. Go to Bacharach dot com & read about PCA 55 & 65 (the pca 55 doesn't have a NOX sensor,but it can be upgraded to a 65)combustion analyzers for some insight of what is required to do this work properly..... There are pdf manuals there to give you some idea of whats required. I cut & pasted the important measurments and calculations that these combustion analyzers provide to the user.
Combustion flue gas analysis is essential for safe operation. If you look around the Bachrach site or google "combustion analysis" I think you'll be headed in the right direction to understanding the process.
The only down side is they cost about $3,000.00 and the oxygen sensors expire about every 2 years if you use it or not. They cost $175.00, just replaced one. Calibration is another $175.00 so the equiptment is expensive,unfortunately.
The seven standard types of fuels that can be selected are:
• Natural Gas
• Oil #2
• Oil #4
• Oil #6
• Kerosene
• Propane
• Coal
The PCA continuously monitors flue gas exhaust conditions and updates
the above displayed values during a combustion test. If the analyzer is
equipped with an optional pressure sensor, then draft measurements can
be made simultaneously with the combustion test, or made separately.
The analyzer has the capability of storing data that was collected during
a combustion test or draft measurement. The stored data can then at a
later date be either viewed on the PCA’s display, printed using an optional
printer, or downloaded to a computer.
Be Green,but also Be Safe
Walt
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