You are right, i'm concerning mostly about the "SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2" warning
Thanks,
Sadia Haque
From: Linda Lawrie <linda@xxxxxxxxxxxxxx>
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Thursday, February 9, 2012 8:17 AM
Subject: Re: [EnergyPlus_Support] Regarding an error
You've listed a multitude of warning messages. Which one(s) are you having problems with?
At 08:14 AM 2/9/2012, Sadia Haque wrote:
Hi,
I'm working with the hospital prototype of DOE-2 in Phoenix climate. I'm having problem to identify the following error message. If someone can give me any feedback on that it would be a great help.
Thanks,
Sadia Haque
Program Version,EnergyPlus-64 7.0.0.036, 2/8/2012 6:31 PM,IDD_Version 7.0.0.036
************* Beginning Zone Sizing Calculations
** Warning ** CheckUsedConstructions: There are 1 nominally unused constructions in input.
** ~~~ ** For explicit details on each unused construction, use Output:Diagnostics,DisplayExtraWarnings;
** Warning ** Calculated design heating load for zone=CORRIDOR_NW_FLR_3 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design
heating load for zone=CORRIDOR_NW_FLR_4 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=CORRIDOR_SE_FLR_3 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=CORRIDOR_SE_FLR_4 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=ER_EXAM3_MULT4_FLR_1 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=ER_NURSESTN_LOBBY_FLR_1 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat
inputs.
** Warning ** Calculated design heating load for zone=ICU_FLR_2 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=ICU_NURSESTN_LOBBY_FLR_2 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=LAB_FLR_3 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=LAB_FLR_4 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=NURSESTN_LOBBY_FLR_3 is zero.
** ~~~ ** Check Sizing:Zone and
ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=NURSESTN_LOBBY_FLR_4 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=OR2_MULT5_FLR_2 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=OR3_FLR_2 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=OR4_FLR_2 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=PHYSTHERAPY_FLR_3 is zero.
** ~~~ **
Check Sizing:Zone and ZoneControl:Thermostat inputs.
** Warning ** Calculated design heating load for zone=RADIOLOGY_FLR_4 is zero.
** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
************* Beginning System Sizing Calculations
************* Beginning Plant Sizing Calculations
************* Testing Individual Branch Integrity
************* All Branches passed integrity testing
************* Testing Individual Supply Air Path Integrity
************* All Supply Air Paths passed integrity testing
************* Testing Individual Return Air Path Integrity
************* All Return Air Paths passed integrity testing
************* No node connection errors were found.
************* Beginning Simulation
** Warning
** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/03 05:13 - 05:15
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/03 05:15 - 05:30
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/12 05:11 - 05:13
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/12 05:11 - 05:13
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/12 05:11 - 05:13
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor
Intl Ap AZ USA TMY3 WMO#=722780, 01/23 22:00 - 22:15
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 01/30 03:00 - 03:15
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 02/23 05:30 - 05:45
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 02/23 05:30 - 05:45
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 02/23 05:30 - 05:45
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 03/02 03:30 - 03:45
** Warning **
SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 03/02 05:00 - 05:15
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 03/02 05:00 - 05:15
** Warning ** SolveAirLoopControllers: Maximum iterations (50) exceeded for VAV_2, at Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780, 03/02 05:00 - 05:15
** Warning ** WriteVeriSumTable: InputVerificationsAndResultsSummary: Wall area based on [>=60,<=120] degrees (tilt) as walls
** ~~~ ** differs ~11.6% from user entered Wall class surfaces. Degree calculation based on ASHRAE 90.1 wall definitions.
** ~~~ ** Calculated based on degrees=[5786.591] m2, Calculated from user entered Wall class surfaces=[5184.431]
m2.
** ~~~ ** Check classes of surfaces and tilts for discrepancies.
************* Simulation Error Summary *************
************* There are 1 unused schedules in input.
************* Use Output:Diagnostics,DisplayUnusedSchedules; to see them.
*************
************* ===== Recurring Error Summary =====
************* The following recurring error messages occurred.
*************
************* ** Warning ** SolveAirLoopControllers: Exceeding Maximum iterations for VAV_2 during Phoenix Sky Harbor Intl Ap AZ USA TMY3 WMO#=722780 continues
************* ** ~~~ ** This error occurred 29 total times;
************* ** ~~~ ** during Warmup 0 times;
************* ** ~~~ ** during Sizing 0 times.
*************
*************
************* ===== Final Error Summary =====
************* The following error categories occurred. Consider correcting or noting.
************* Nominally Unused Constructions
************* ..The nominally unused constructions warning is provided to alert you to potential conditions that can cause
************* ..extra time during simulation. Each construction is calculated by the algorithm indicated in the HeatBalanceAlgorithm
************* ..object. You may remove the constructions indicated (when you use the DisplayExtraWarnings option).
*************
************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
*************
EnergyPlus Sizing Error Summary. During Sizing: 18 Warning; 0 Severe Errors.
************* EnergyPlus Completed Successfully-- 62 Warning; 0 Severe Errors; Elapsed Time=00hr 08min 12.00sec
__._,_.___