errors simulation because of the HVAC System

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Hi all,

I try to run the simulation but I have 31 errors because of the HVAC system. Some errors are like this one :

UpdateZoneSizing: Cooling supply air temperature (calculated) within 2C of zone temperature ...check zone thermostat set point and design supply air temperatures ...zone name = AHU 1 ...design sensible cooling load = 1784609.90 W ...thermostat set point temp = 0.000 C ...zone temperature = 26.719 C ...supply air temperature = 26.667 C ...temperature difference = -5.24004E-002 C ...calculated volume flow rate = 15182420.16951 m3/s ...calculated mass flow rate = 18182663.80103 kg/s.

Or like this one :

CheckWarmupConvergence: Loads Initialization, Zone="AHU 11" did not converge after 25 warmup days. ...Environment(SizingPeriod)="BALTIMORE BLT WASHNGTN INTL ANN CLG .4% CONDNS ENTH=>MDB" ..Max Temp Comparison = 4.60E-004 vs Temperature Convergence Tolerance=0.40 - Pass Convergence ..Min Temp Comparison = 1.93E-006 vs Temperature Convergence Tolerance=0.40 - Pass Convergence ..Max Heat Load Comparison = 1.0000 vs Loads Convergence Tolerance=4.00E-002 - Pass Convergence ..Max Cool Load Comparison = 6.0292E-002 vs Loads Convergence Tolerance=4.00E-002 - Fail Convergence

But I don't understand how to resolve them. If someone can help me that can be cool !

Thank you.

Florian,