Hello,
I got 2645615 Warnings which are same as link text when using HVAC tempelate - ZoneVAVwatercooled for a large building .
My question is that: Even if there are so many warnings, the system doesn't converge for only 07/27 09:30 - 09:40 and 08/18 11:20 - 11:30 and my timestep is 10 min. Could I ignore these warnings? If not, how can i fix this problem?
Thanks=)
More details: * Warning * SimHVAC: Maximum iterations (20) exceeded for all HVAC loops, at RUN PERIOD 1, 07/27 09:30 - 09:40 * ~~~ * The solution for one or more of the Air Loop HVAC systems did not appear to converge * ~~~ * Air System Named = VAV SYS1 did not converge for mass flow rate * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface mass flow rate check value iteration history trace: 65.536106,83.211257,23.244115,58.052126,90.984201,27.363113,65.536130,83.211285,23.244115,58.052126, * ~~~ * Supply-to-demand interface deck 1 mass flow rate check value iteration history trace: 0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000, * ~~~ * Air System Named = VAV SYS1 did not converge for temperature * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface temperature check value iteration history trace: 5.555677E-002,7.269640E-002,1.850951E-002,5.245884E-002,7.519209E-002,2.136337E-002,5.555679E-002,7.269643E-002,1.850951E-002,5.245884E-002, * ~~~ * Supply-to-demand interface deck 1 temperature check value iteration history trace: 1.241118,1.675333,0.419872,1.213315,1.669355,0.470383,1.241119,1.675334,0.419872,1.213315, * ~~~ * Air System Named = VAV SYS1 did not converge for energy * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface energy check value iteration history trace: 1713822.876912,2173451.995929,606978.653270,1516346.701414,2378253.912276,714557.723354,1713823.524251,2173452.732933,606978.656808,1516346.706538, * ~~~ * Supply-to-demand interface deck 1 energy check value iteration history trace: 666322.964022,-1039523.438037,250718.781313,653731.204601,-1052064.940010,283512.232175,666323.237488,-1039523.823601,250718.781425,653731.203318,
* Warning * SimHVAC: Maximum iterations (20) exceeded for all HVAC loops, at RUN PERIOD 1, 08/18 11:20 - 11:30 * ~~~ * The solution for one or more of the Air Loop HVAC systems did not appear to converge * ~~~ * Air System Named = VAV SYS1 did not converge for mass flow rate * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface mass flow rate check value iteration history trace: 34.666404,34.205766,36.931524,37.392130,34.666596,34.205498,36.934014,37.384023,34.722262,34.125857, * ~~~ * Supply-to-demand interface deck 1 mass flow rate check value iteration history trace: 0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000, * ~~~ * Air System Named = VAV SYS1 did not converge for temperature * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface temperature check value iteration history trace: 2.842307E-002,2.813153E-002,2.705431E-002,2.734583E-002,2.842311E-002,2.813129E-002,2.705632E-002,2.734112E-002,2.843510E-002,2.805774E-002, * ~~~ * Supply-to-demand interface deck 1 temperature check value iteration history trace: 1.036623,1.023734,1.020440,1.033328,1.036625,1.023723,1.020506,1.033097,1.037361,1.020681, * ~~~ * Air System Named = VAV SYS1 did not converge for energy * ~~~ * Check values should be zero. Most Recent values listed first. * ~~~ * Demand-to-Supply interface energy check value iteration history trace: 909133.570182,896989.472702,970464.860601,982608.109186,909138.674672,896982.451674,970530.069768,982393.952136,910617.377768,894893.977405, * ~~~ * Supply-to-demand interface deck 1 energy check value iteration history trace: -646841.932805,603611.966263,-639539.004232,608790.973247,-646843.798595,603606.439498,-639583.142003,608666.152940,-647372.601054,601962.934610, * ~~~ * Node named BASEMENT_THERMALZONE SUPPLY INLET shows oscillating humidity ratio across iterations with a repeated value of 1.117897E-002 * ~~~ * Node named BASEMENT_THERMALZONE SUPPLY INLET humidity ratio [kg-water/kg-dryair] iteration history trace (most recent first): 1.117897E-002,1.118579E-002,1.118578E-002,1.117897E-002,1.118579E-002,1.118578E-002,1.117897E-002,1.118579E-002,1.118578E-002,1.117897E-002,
