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Error in when replacing new chiller

asked 2019-12-05 13:28:39 -0500

updated 2019-12-06 03:23:03 -0500

I was working with DOE prototype building in OpenStudio. I have its own chiller and plat loop set. In the setting, all the size are calculated by auto size. But when I tried to replace it with a chiller in library fatal error occurred in running the simulation. The only difference that I've noticed is COP and PLR characteristic of the chiller. I don't know what else I should have done?

Here are the errors:

** Severe  ** <root>[Chiller:Electric:EIR][90.1-2013 WaterCooled  Centrifugal Chiller 0 718tons 0.6kW/ton] - Missing required property 'chilled_water_inlet_node_name'.
** Severe  ** <root>[Chiller:Electric:EIR][90.1-2013 WaterCooled  Centrifugal Chiller 0 718tons 0.6kW/ton] - Missing required property 'chilled_water_outlet_node_name'.
**  Fatal  ** Errors occurred on processing input file. Preceding condition(s) cause termination.
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=2
   ..... Last severe error=<root>[Chiller:Electric:EIR][90.1-2013 WaterCooled  Centrifugal Chiller 0 718tons 0.6kW/ton] - Missing required property 'chilled_water_outlet_node_name'.
   ************* Warning:  Node connection errors not checked - most system input has not been read (see previous warning).
   ************* Fatal error -- final processing.  Program exited before simulations began.  See previous error messages.
   ************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Terminated--Fatal Error Detected. 0 Warning; 2 Severe Errors; Elapsed Time=00hr 00min  0.70sec
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Comments

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What does the error message say?

shorowit's avatar shorowit  ( 2019-12-05 13:48:40 -0500 )edit

I corrected my question.

Mehrdad Vojdani's avatar Mehrdad Vojdani  ( 2019-12-06 03:20:08 -0500 )edit

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answered 2019-12-09 09:23:23 -0500

The error message is pretty informative: you seem to have a chiller in your model that isn't connected on the Chilled Water side.

This likely means that the original Chiller from the DOE prototype is still connected on the Condenser Loop, you have to remove it from that loop too.

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Asked: 2019-12-05 13:28:39 -0500

Seen: 165 times

Last updated: Dec 09 '19