Mech. smoke ventilation using HVAC, controled by an timer

[tobi br.]

Hey

i tried to code a mechanical smoke ventilation using HVAV.

A very similar code worked out good before. Now theres a problem with the timer.

Code for the HVAC

&DEVC ID='Timer01', XYZ=0.0,0.0,0.0, QUANTITY='TIME', SETPOINT=0, / 

&CTRL ID ='MRAON', FUNCTION_TYPE='ANY', INPUT_ID='TIMER01'/

&DEVC ID ='Flow_MRA', QUANTITY='VOLUME FLOW', XB= 16.3,18.3,18.9,20.9,5.8,5.8, /

 

&VENT ID='MRA_IN', SURF_ID='HVAC', XB= 16.3,18.3,18.9,20.9,5.3,5.3, CTRL_ID='MRAON'/

&VENT ID='MRA_OUT', SURF_ID='HVAC', XB= 16.3,18.3,18.9,20.9,5.8,5.8, CTRL_ID='MRAON'/

&HVAC ID='IN', TYPE_ID='NODE', DUCT_ID='Duct01', VENT_ID='MRA_IN', CTRL_ID='MRAON'/

&HVAC ID='OUT', TYPE_ID='NODE', DUCT_ID='Duct01', VENT_ID='MRA_OUT', CTRL_ID='MRAON'/

&HVAC ID='Duct01', TYPE_ID='DUCT', AREA=2.0, PERIMETER=8.0, VOLUME_FLOW=3.0,

NODE_ID='IN','OUT', ROUGHNESS=1.0E-3, LENGTH=1.4, CTRL_ID='MRAON'/ 

This Error  occurd:

ERROR: VENT 7 must be a plane (MPI Process: 0, CHID: FDSSMV_PRUEFUNG2)

 DEVICE Activation Times

   1  timer                                                       No Activation

ERROR: FDS was improperly set-up - FDS stopped (CHID: FDSSMV_PRUEFUNG2)

Anyone knows how to fix this error?

Cheers!

[dr_jfloyd]

The error is saying that the input line for 7th VENT in your input file is not a plane.  Check the inputs for the 7th VENT.

Do not use CTRL or DEVC for VENTs tied to HVAC.  From 12.2.3 "'Note that a VENT being used for an HVAC system should not have a CTRL_ID or DEVC_ID. If you need

to turn on or off a VENT connected to an HVAC system, use a damper in the duct connected to VENT."