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Re: [EnergyPlus_Support] about the nodes, again!

Thank you for sending the input file.  The problem is in the VAV unit outlet 
node name:

> SINGLE DUCT:VAV:REHEAT,
>     RF-INT1 VAV system,      !- Name of System
>     AirSysAvailSched,        !- System Availability schedule
>     Zone 13 Reheat Air Inlet Node,  !- DAMPER Air Outlet Node
>     Zone 13 Damper Inlet Node,  !- UNIT Air Inlet Node

<snip>

>     RF-INT2 Inlet Node,      !- UNIT Air Outlet Node
>     0.00025,                 !- Convergence Tolerance
>     NORMAL;                  !- Damper Heating Action

It should be "RF-INT1 Inlet Node".  I will submit a suggestion to attempt to 
make the error message more meaningful in this case.

However, with this fixed, the simulation runs but produces many max iteration 
errors.  I do not know why yet.

Mike


On 11 Aug 2004, at 3:49, beyangj wrote:

> Dear Mike,
> 
> Thank you very much about your help. Now I still don't know how to 
> deal with the problem. I have defined as follow, and the 'Zone 13 
> Damper Inlet Node' appear two time, as follow:
> 
> AIR PRIMARY LOOP,
>     VAV Sys 1,               
>     VAV Sys 1 Controllers,   
>     VAV Sys 1 Avail List,    
>     autosize,                
>     VAV Sys 1 Branches,      
>     ,                        
>     Air Loop Inlet Node 1,   
>     Return Air Mixer Outlet 1,  
>     Zone Equipment Inlet Node 1,  
>     Air Loop Outlet Node 1;  
> 
> ZONE SUPPLY AIR PATH,
>     Zone Supply Air Path 1,  !- Supply Air Path Name
>     Zone Equipment Inlet Node 1,  !- Supply Air Path Inlet Node
>     Zone Splitter,           !- KEY--System Component Type 1
>     Splitter 1;              !- Component Name 1
> 
> 
> ZONE SPLITTER,
>     Splitter 1,              !- Splitter Name
>     Zone Equipment Inlet Node 1,  !- Inlet_Node
>     Zone 1 Damper Inlet Node,!- Outlet_Node_1
>     Zone 2 Damper Inlet Node,!- Outlet_Node_2
>     Zone 3 Damper Inlet Node,!- Outlet_Node_3
>     Zone 4 Damper Inlet Node,!- Outlet_Node_4
>     Zone 5 Damper Inlet Node,!- Outlet_Node_5
>     Zone 6 Damper Inlet Node,!- Outlet_Node_6
>     Zone 7 Damper Inlet Node,!- Outlet_Node_7
>     Zone 8 Damper Inlet Node,!- Outlet_Node_8
>     Zone 9 Damper Inlet Node,!- Outlet_Node_9
>     Zone 10 Damper Inlet Node,  !- Outlet_Node_10
>     Zone 11 Damper Inlet Node,  !- Outlet_Node_11
>     Zone 12 Damper Inlet Node,  !- Outlet_Node_12
>     Zone 13 Damper Inlet Node,  !- Outlet_Node_13
>     Zone 14 Damper Inlet Node,  !- Outlet_Node_14
>     Zone 15 Damper Inlet Node,  !- Outlet_Node_15
>     Zone 16 Damper Inlet Node;  !- Outlet_Node_16
> 
> SINGLE DUCT:VAV:REHEAT,
>     RF-INT1 VAV system,      !- Name of System
>     AirSysAvailSched,        !- System Availability schedule
>     Zone 13 Reheat Air Inlet Node,  !- DAMPER Air Outlet Node
>     Zone 13 Damper Inlet Node,  !- UNIT Air Inlet Node
>     autosize,                !- Maximum air flow rate {m3/s}
>     0.3,                     !- Zone Minimum Air Flow Fraction
>     Zone 13 Reheat Water Inlet Node,  !- Control node
>     COIL:Water:SimpleHeating,!- Reheat Component Object
>     Reheat Coil Zone 13,     !- Name of Reheat Component
>     autosize,                !- Max Reheat Water Flow {m3/s}
>     0.0000000E+00,           !- Min Reheat Water Flow {m3/s}
>     RF-INT2 Inlet Node,      !- UNIT Air Outlet Node
>     0.00025,                 !- Convergence Tolerance
>     NORMAL;                  !- Damper Heating Action
> 
>  All the zone Damper Inlet Nodes(From Zone 1 Damper Inlet Node to 
> Zone 16 Damper Inlet Node ) are defined at the same way, but the 
> complier only gave the Severe message for Zone 13 Damper Inlet Node, 
> as follow:
> ** Severe  ** Node ZONE 13 DAMPER INLET NODE connects to no component
> **   ~~~   ** Occurs in Supply Air Path=ZONE SUPPLY AIR PATH 1
> **  Fatal  ** Preceding errors cause termination
> 
> I have checked many times, and I still can't deal with the problem.
>  Could you help me?
> 
> Thanks a lot!
> 
> Stewart
> 
> 
> 
> 
> 
> 
> 
> 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 area of the Support Web Site.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 






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