[EnergyPlus_Support] Zone Air Temp Control Problem

["carla_qian" <carla_qian@xxxxxxxxxxxx>]

Dear support team,

I'm modeling a multizone building with Compact:VAV objects. My 
simulation results show all the zone air temperatures are out of 
control, and the zone/sys sensible heating and cooling rate are also 
abnormal. There is heating in summer days and cooling in winter days. 
The dual setpoint with deadband seems not work. I've checked all the 
zone control ojects, especially the setpoint schedules, and nothing 
is wrong. I extract some typical warnings in the error file below, 
would you please help to find out where is the problem? Thanks. And 
is there any way I can upload my IDF for you to check?

Carla

Error file:
   ** Warning ** GetSurfaceData: InterZone Surface Areas do not match 
as expected and might not satisfy conservation of energy:
   **   ~~~   **   Area=37.2, Multipliers=1, Total Area=37.2 in 
Surface=C_37233_1_0_0 Zone=42108
   **   ~~~   **   Area=37.2, Multipliers=3, Total Area=111.6 in 
Surface=F_38018_10010_0_10013 Zone=38018

   ** Warning ** SimHVAC: Maximum iterations (30) exceeded for all 
HVAC loops, at SUMMER DESIGN DAY IN UNTITLED, 07/15 03:30 - 04:00
   ** Warning ** SimHVAC: Maximum iterations (30) exceeded for all 
HVAC loops, at SUMMER DESIGN DAY IN UNTITLED, 07/15 06:14 - 06:15
   ** Warning ** SimHVAC: Maximum iterations (30) exceeded for all 
HVAC loops, at SUMMER DESIGN DAY IN UNTITLED, 07/15 06:15 - 06:16
   ** Warning ** SimHVAC: Maximum iterations (30) exceeded for all 
HVAC loops, at SUMMER DESIGN DAY IN UNTITLED, 07/15 06:16 - 06:17 

  ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 05/31 19:05 - 19:06
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 05/31 19:05 - 19:06
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 05/31 19:05 - 19:06
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 05/31 19:05 - 19:06
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 05/31 19:05 - 19:06
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 07/04 06:40 - 06:41
   ** Warning ** SolveAirLoopControllers: Maximum iterations (50) 
exceeded for MAIN  VAV SYSTEM, at BEIJING BEIJING CHN CSWD 
WMO#=545110, 07/12 06:24 - 06:25

  ** Warning ** Missing Data Found on Weather Data File
   ************* Missing "Opaque Sky Cover", Number of items=  540
   ************* Psychrometric Error Summary
   *************  Routine - Number of errors
   *************    PsyTdpFnTdbTwbPb-0
   *************    PsyRhFnTdbWPb-0
   *************    PsyTwbFnTdbWPb-0
   *************    PsyVFnTdbWPb-0
   *************    PsyWFnTdpPb-0
   *************    PsyWFnTdbH-0
   *************    PsyWFnTdbTwbPb-0
   *************    PsyWFnTdbRhPb-0
   *************    PsyPsatFnTemp-4
   *************    PsyTsatFnHPb-0
   *************    PsyTsatFnPb-0
   *************    tp12c0-0
   *************    tp12c1-0
   *************    tp12h0-0
   *************    tp12h1-0
   *************    freeze-0
   *************
   ************* ===== Recurring Error Summary =====
   ************* The following recurring error messages occurred.
   *************
   *************  ** Warning ** SimHVAC: Exceeding Maximum iterations 
for all HVAC loops, during SUMMER DESIGN DAY IN UNTITLED continues
   *************  **   ~~~   **   This error occurred 34 times.
   *************
   *************  ** Warning ** SimHVAC: Exceeding Maximum iterations 
for all HVAC loops, during BEIJING BEIJING CHN CSWD WMO#=545110 
continues
   *************  **   ~~~   **   This error occurred 37403 times.
   *************
   *************  ** Warning ** SolveAirLoopControllers: Exceeding 
Maximum iterations for MAIN  VAV SYSTEM during BEIJING BEIJING CHN 
CSWD WMO#=545110 continues
   *************  **   ~~~   **   This error occurred 11 times.
   *************
   *************
   ************* ===== Final Error Summary =====
   ************* The following error categories occurred.  Consider 
correcting or noting.
   ************* InterZone Surface Areas -- mismatch
   ************* ..Area mismatch errors happen when the interzone 
surface in zone A is
   ************* ..not the same size as it's companion in zone B.
   *************
   ************* EnergyPlus Completed Successfully-- 37582 Warning; 0 
Severe Errors; Elapsed Time=00hr


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