i am currently modelling an institutional building (2 Basements+G+7 Floors) in equest with VAV System without heating, I'm getting the unmet hours as follows

               PERCENT OF HOURS ANY SYSTEM ZONE OUTSIDE OF THROTTLING RANGE = 81.83
               PERCENT OF HOURS ANY PLANT LOAD NOT SATISFIED                =  0.00
               HOURS ANY ZONE ABOVE COOLING THROTTLING RANGE                =  7169
               HOURS ANY ZONE BELOW HEATING THROTTLING RANGE                =     0

Have changed the throttling range from 2 to 4, but only very little change in unmet hours. Tried changing the outdoor air> flow per person & Air Flow> min design flow, but didn't get any change in unmet hours. Kindly help me how to reduce the unmet hours.

also showing warning in ATTN as follows WARNING************************ ZONE E1 WSW Perim Zn (G.WSW2)
might have insufficient heating capability. Check that the SYSTEM or ZONE HEATING-CAPACITY plus this ZONEs BASEBOARD-RATING is adequate to maintain the ZONE specified DESIGN-HEAT-T for the calculated peak ZONE load (see LS-A or LS-B for the ZONE peak load.)