I've never understood why doe2 produces zero values, like in the snippet
below. By the time the simulation reached March it reported a good value for
every hour through to the end of the year.

MMDDHH EL1 West EL1 West
Perim Z Perim Z
ZONE UNIT
TEMP MIX HUM
F PERCENT-
RH
----( 6) ----(40)
1 1 1 69.2 0.0000 < 1 1 2 70.2 0.0068
1 1 3 69.1 0.0000 < 1 1 4 70.2 0.0066
1 1 5 69.5 0.0000 < 1 1 6 70.2 0.0061
1 1 7 69.7 0.0000 < 1 1 8 70.2 0.0064

The variable being tracked (mixed air humidity ratio) is supposedly a valid
selection for a system type I've used (heat pump).

Any ideas?

Thanks,
Shaun Martin