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[EnergyPlus_Support] PlantFlowResolver: Branch flow rates out of bounds



Dear All,
    I developed a model with 13 zones and tired to use compact HVAC 
VAV and FCU to feed those 7 zones and 6 zones respectively. However, 
during simulation, it showed an error as shown below:

** Warning ** PlantFlowResolver: Branch flow rates out of bounds, for 
Plant Loop=CHILLED WATER PLANT CHILLED WATER LOOP, Branch=VAV 1 
COOLING COIL CHW BRANCH
**   ~~~   ** Conditions should be: 886.834 <= 68.233 <= 92.188 
Occurrence info=TIANJIN ANN CLG .4% CONDNS DB=>MWB, 07/21 08:00 - 
08:15

  ** Severe  ** FindRootSimpleController: Controller error for 
controller = VAV 6 COOLING COIL CONTROLLER
   **   ~~~   **  Occurrence info=TIANJIN TIANJIN CHN CUSTOM-545270 
WMO#=545270, 01/01 01:15 - 01:30
   **   ~~~   **   Controller function is inconsistent with user 
specified controller action = Reverse action
   **   ~~~   **   Actuator will be set to maximum action
   **   ~~~   ** Controller control type=Temperature
   **   ~~~   ** Controller temperature set point = 12.29 [C]
   **   ~~~   ** Controller sensed temperature = 726.87 [C]
   **   ~~~   ** Controller actuator mass flow rate set to 125.96 
[kg/s]
   **   ~~~   ** Controller actuator temperature = 735.61 [C]

This error occured at all branches of VAV and FCU. What should I do 
to solve this problem?


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