I'm comparing two systems one is a 4-pipe fan coil system and one is a
PTHP system. All of the savings between the two runs seem to make sense
except for a large difference in fan energy between the two. I don't have
detailed product information on the actual fan energy so I currently have
the same kW/CFM value input for both systems. The fan energy of the fan
coil system is 85% less than the PTHP system.

I believe the problem lies with the fan coil system, because it doesn't
have an option available for "Fan Control". I have the Indoor Fan Mode
set to Intermittent, which is how I believe the system would actually
operate since ventilation air is being delivered from a whole house fan.

Can anyone explain to me how the FC system calculates fan power? Why is
there no ability to change the fan control option?

Robby Oylear, LEEDR AP