Soil color does not affect the behavior and use of soil; however, it can indicate the composition of the soil and give clues to the conditions that the soil is subjected to.ark brown or black color in soil indicates that the soil has a high organic matter content. Wet soil will appear darker than dry soil. However, the presence of water also affects soil color by affecting the oxidation rate. Soil that has a high water content will have less air in the soil, specifically less oxygen.
Re: On coil / off coil temperature. Originally Posted by The Viking First you would have to determine what type of kit you are looking at. In your example above, for the indoor coil, the on coil temp would be 24 degrees for a recirculating unit and 45 degrees for a 100% fresh air unit...e: On coil / off coil temperature. Originally Posted by The Viking First you would have to determine what type of kit you are looking at. In your example above, for the indoor coil, the on coil temp would be 24 degrees for a recirculating unit and 45 degrees for a 100% fresh air unit...
If the ambient temperature at the time that the DC resistance is measured differs significantly from the specified temperature, the result must be corrected in order to be meaningful for quality control purposes. Coils that have been subjected to thermal stress, e.g. air coils wound with hot air may require 8-12 hours to stabilise. Enter the actual ambient temperature at the time that readings were taken, and the observed DC resistance of the coil into the yellow cells, and then press the calculate button.