[EnergyPlus_Support] turn off chiller

["thaisarquiteta" <thaisaya17@xxxxxxxxxxx>]

Hello 

I'd like to know how could I turn off only the chiller equipment due 
to outside air temperature. My objective is to turn off the chiller 
but insuflate outside air, using the supply fan, whenever the 
outside air temperature is ok for that (free-cooling/ mechanical 
ventilation). 
My chiller is a electric one, with air cooled condenser type.
Using the system availability manager all the system is turned off, 
including fans, causing the attached kind of problems.
Would someone please help me???
Thanks in advance,

Thais Aya H. Inatomi


Program Version,EnergyPlus 1.4.0.025, 5/7/2007 11:42 PM,IDD_Version 
1.4.0.025
   **   ~~~   ** Based on ASHRAE 55-2004 graph (Section 5.2.1.1)
   **   ~~~   ** During DesignDay Environment [02/21 - 02/21]: 
ANNUAL COOLING WB=MDB
   **   ~~~   ** 12.0 hours were uncomfortable in zone: SPACE1-1
   ** Warning ** Inside surface heat balance did not converge with 
Max Temp Difference [C] =2.204E-003 vs Max Allowed Temp Diff [C] 
=2.000E-003
   **   ~~~   ** occuring in simulation=SAO_PAULO/CONGONHAS - BLZ 
TMY3-837800 WMO#=837800 at 04/19 11:20
   ** Warning ** Inside surface heat balance did not converge with 
Max Temp Difference [C] =2.138E-003 vs Max 
  
 ** Warning ** Inside surface heat balance convergence problem 
continues.....700
   ** Warning ** Inside surface heat balance convergence problem 
continues.....800
   ** Severe  ** Temperature out of bounds (-169.04) for surface=C1-
1SUP
   **   ~~~   ** in Zone=SUP-PLENUM-1
   **   ~~~   ** occuring in environment=SAO_PAULO/CONGONHAS - BLZ 
TMY3-837800 WMO#=837800 at 04/26 23:30
   **   ~~~   ** A temperature out of bounds problem can be caused 
by several things.  The user
   **   ~~~   ** should check the weather environment, the level of 
internal gains with respect
   **   ~~~   ** to the zone, and the thermal properties of their 
materials among other things.
   **   ~~~   ** A common cause is a building with no thermal mass --
 all materials with
   **   ~~~   ** Regular-R definitions.
   **  Fatal  ** EnergyPlus has exited due to the reason stated above
   ************* EnergyPlus Terminated--Fatal Error Detected. 27 
Warning; 1 Severe Errors





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