[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [EnergyPlus_Support] Maximum iterations exceeded for all HVAC loops
James:
This usually indicates a bad configuration that is impossible to
solve. It is probably an incorrect node name somewhere in your
system. Many node connections are checked for validity, but many are
not. Review your node names to make sure that a complete loop is
defined and there are no dangling nodes. Also check for controllers
that may be operating without a valid setpoint node.
Mike
On 12 Feb 2003, at 11:55, James O'Donnell wrote:
> Dear All,
> Could anybody please explain or offer possibe reasons to why my
> simple model consisting of a fan a heating coil and a cooling coil
> would produce the following warnings?
>
>
> ************* Testing Individual Branch Integrity
> ************* All Branches passed integrity testing
> ************* No node connection errors were found.
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 00:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 01:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 02:10
> ** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
> loops,
> SUMMER DESIGN DAY, 07/21 02:10
> ** Warning ** SimHVAC: Exceeding max iterations continues... 50
> ** Warning ** SimHVAC: Exceeding max iterations continues... 100
> ** Warning ** SimHVAC: Exceeding max iterations continues... 150
> ** Warning ** SimHVAC: Exceeding max iterations continues... 200
> ** Warning ** SimHVAC: Exceeding max iterations continues... 250
> ** Warning ** SimHVAC: Exceeding max iterations continues... 300
> ** Warning ** SimHVAC: Exceeding max iterations continues... 350
> ** Warning ** SimHVAC: Exceeding max iterations continues... 400
> ** Warning ** SimHVAC: Exceeding max iterations continues... 450
> ** Warning ** SimHVAC: Exceeding max iterations continues... 500
> ** Warning ** SimHVAC: Exceeding max iterations continues... 550
> ** Warning ** SimHVAC: Exceeding max iterations continues... 600
> ** Warning ** SimHVAC: Exceeding max iterations continues... 650
> ** Warning ** SimHVAC: Exceeding max iterations continues... 700
> ** Warning ** SimHVAC: Exceeding max iterations continues... 750
> ** Warning ** SimHVAC: Exceeding max iterations continues... 800
> ** Warning ** SimHVAC: Exceeding max iterations continues... 850
> ** Warning ** SimHVAC: Exceeding max iterations continues... 900
> ** Warning ** SimHVAC: Exceeding max iterations continues... 950
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1000
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1050
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1100
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1150
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1200
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1250
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1300
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1350
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1400
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1450
> ** Warning ** SimHVAC: Exceeding max iterations continues... 1500
> ************* EnergyPlus Completed Successfully-- 44 Warning; 0
> Severe
> Errors; Elapsed Time=00hr 00min 29sec
>
>
> Yours Thankfully:
> James
> O'Donnell
>
>
> ------------------------ Yahoo! Groups Sponsor
> ---------------------~--> Get 128 Bit SSL Encryption!
> http://us.click.yahoo.com/LIgTpC/vN2EAA/xGHJAA/dkFolB/TM
> ---------------------------------------------------------------------~
> ->
>
> To unsubscribe from this group, send an email to:
> EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the
> appropriate folder in the Files are of the Support Web Site.
>
>
>
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
========================================================
EnergyPlus Testing and Support
EnergyPlus-Support@xxxxxxxx
To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are not allowed -- please post any files to the appropriate folder in the Files are of the Support Web Site.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/