NSEU....
Like I said, read post #2...because that's exactly what your screen data is showing you.
The data shows zone D as being the zone requiring the coolest conditioned air, (which is also supplied to all the other zones as well), so all those other zones (which all require some conditioned air temp somewhat higher than zone D), add varying amounts of hot trim air, to slightly warm their supply air to satisfy their particular needs.
Nothing different here, except for the fancy screen.
EW73
