Ooes anyone knows how can i solve the warning below so that i can decrease the PERCENT OF HOURS ANY SYSTEM ZONE OUTSIDE OF THROTTLING RANGE from now 64.3% to 5%

? PREHEAT/HEATING-CAPACITY in SYSTEM f1 Sys1 (VAVS) (G)
is too low to provide the requested supply temperature for
the calculated mixed air temperature using total ZONE loads
(on LS-A/B) and SYSTEM design parameters, plus outside air
conditions (on LS-C), and specified capacities & air flows.
Requested temperature is 55.00 calculated is 41.02
Check HEATING-CAPACITY, HEAT-SET-T, PRE-HEAT-T, MAX-SUPPLY-T,
DESIGN-HEAT-T, and ZONE loads for consistency.?

thanks a lot!

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????????recent:liujiagen1984 at gmail.com
??????????2009-12-02