In another thread about zoning an XV95, I asked for blower performance curves. Key 1 provided me with the XV95 manual and blower data.

The data looks different from what I am used to seeing. At a low blower setting, the CFM increases as static increases. That's opposite of what I'm used to. At a high setting, the trend is as expected (higher static causes lower flow) but the CFM change is still quite a bit less than expected.

I'm assuming the blower is a standard forward curve unit. Can any of the pros shed some light on this?