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Hey all,

This is a question that stems off one of my previous questions. Basically the radiant baseboards I have modelled are not meeting the heating requirements. This is the type of error I am getting.

* Warning * ControlCompOutput: Maximum iterations exceeded for ZoneHVAC:Baseboard:RadiantConvective:Water = CEILING 2SW * ~~~ * ... Load met = 4.42731 W. * ~~~ * ... Load requested = 2.77647 W. * ~~~ * ... Error = 1.65083736 %. * ~~~ * ... Tolerance = 0.10000000 %. * ~~~ * ... Error = (Load met - Load requested) / MAXIMUM(Load requested, 100) * ~~~ * ... Actuated Node Mass Flow Rate =1.752835318E-008 kg/s * ~~~ * Environment=SHEARWATER ANN HTG WIND 99.6% CONDNS WS=>MCDB, at Simulation time=01/21 00:30 - 00:45

Sometimes these errors go up to 300% or more. My only thought is that something is set incorrectly that is associated with the mass flow rate of water through the panel.

I have these hot water radiant baseboards hooked up to my DHW plant. That plant has a temperature setpoint of 87.8C but that was the only think I had set on the loop. The rest was supposed to be autosized and should supply the correct flow to all the radiant baseboards. Is there anything special that need to be done when applying these to a model?

Note: Working in OpenStudio

Hey all,

This is a question that stems off one of my previous questions. Basically the radiant baseboards I have modelled are not meeting the heating requirements. This is the type of error I am getting.

* Warning * ControlCompOutput: Maximum iterations exceeded for ZoneHVAC:Baseboard:RadiantConvective:Water = CEILING 2SW * ~~~ * ... Load met = 4.42731 W. * ~~~ * ... Load requested = 2.77647 W. * ~~~ * ... Error = 1.65083736 %. * ~~~ * ... Tolerance = 0.10000000 %. * ~~~ * ... Error = (Load met - Load requested) / MAXIMUM(Load requested, 100) * ~~~ * ... Actuated Node Mass Flow Rate =1.752835318E-008 kg/s * ~~~ * Environment=SHEARWATER ANN HTG WIND 99.6% CONDNS WS=>MCDB, at Simulation time=01/21 00:30 - 00:45

Sometimes these errors go up to 300% or more. My only thought is that something is set incorrectly that is associated with the mass flow rate of water through the panel.

I have these hot water radiant baseboards hooked up to my DHW plant. That plant has a temperature setpoint of 87.8C but that was the only think thing I had set on the loop. The rest was supposed to be autosized and should supply the correct flow to all the radiant baseboards. Is there anything special that need to be done when applying these to a model?

Note: Working in OpenStudio

Hey all,

This is a question that stems off one of my previous questions. Basically the radiant baseboards I have modelled are not meeting the heating requirements. This is the type of error I am getting.

** Warning * ** ControlCompOutput: Maximum iterations exceeded for ZoneHVAC:Baseboard:RadiantConvective:Water = CEILING 2SW
 *   ~~~   * **   ~~~   ** ... Load met       = 4.42731 W.
 *   ~~~   * **   ~~~   ** ... Load requested = 2.77647 W.
 *   ~~~   * **   ~~~   ** ... Error          = 1.65083736 %.
 *   ~~~   * **   ~~~   ** ... Tolerance      = 0.10000000 %.
 *   ~~~   * **   ~~~   ** ... Error          = (Load met - Load requested) / MAXIMUM(Load requested, 100)
 *   ~~~   * **   ~~~   ** ... Actuated Node Mass Flow Rate =1.752835318E-008 kg/s
 *   ~~~   * **   ~~~   **  Environment=SHEARWATER ANN HTG WIND 99.6% CONDNS WS=>MCDB, at Simulation time=01/21 00:30 - 00:45
00:45

Hey all,

This is a question that stems off one of my previous questions. Basically the radiant baseboards I have modelled are not meeting the heating requirements. This is the type of error I am getting.

** Warning ** ControlCompOutput: Maximum iterations exceeded for ZoneHVAC:Baseboard:RadiantConvective:Water = CEILING 2SW
**   ~~~   ** ... Load met       = 4.42731 W.
**   ~~~   ** ... Load requested = 2.77647 W.
**   ~~~   ** ... Error          = 1.65083736 %.
**   ~~~   ** ... Tolerance      = 0.10000000 %.
**   ~~~   ** ... Error          = (Load met - Load requested) / MAXIMUM(Load requested, 100)
**   ~~~   ** ... Actuated Node Mass Flow Rate =1.752835318E-008 kg/s
**   ~~~   **  Environment=SHEARWATER ANN HTG WIND 99.6% CONDNS WS=>MCDB, at Simulation time=01/21 00:30 - 00:45

Sometimes these errors go up to 300% or more. My only thought is that something is set incorrectly that is associated with the mass flow rate of water through the panel.

I have these hot water radiant baseboards hooked up to my DHW plant. That plant has a temperature setpoint of 87.8C but that was the only thing I had set on the loop. The rest was supposed to be autosized and should supply the correct flow to all the radiant baseboards. Is there anything special that need to be done when applying these to a model?

Note: Working in OpenStudio