[Equest-users] User Expression for DHW heater type

[samuel mason]

Hello,
I am trying to set up a user expression for the type of DHW heater in a
project. When I use the symbolic index control shown below and add it
directly into the equest interface, the model runs fine and the graphical
interface shows the correct heater type.

However, when I save the model, the INP file does not get written with the
#SI notation and when I reload the model, it crashes while loading the BDL
right when it gets to the DW-heater. Does anyone know how to get around
this?

Snippet:
TYPE =
{IF(#PA("DHW_Type")==1) THEN
#SI("GAS","DW-HEATER","TYPE")
ELSE IF (#PA("DHW_Type")==2) THEN
#SI("ELEC","DW-HEATER","TYPE")
ELSE IF(#PA("DHW_Type")==3) THEN
#SI("HEAT-PUMP","DW-HEATER","TYPE")
ELSE
#SI("GAS","DW-HEATER","TYPE")
ENDIF
ENDIF
ENDIF}

DHW_Type is a global parameter of type numeric.

I also tried putting this code into the default for the DW-heater with a
user expression and this also crashes when trying to load the BDL.

Thank you in advance.

Sam


*Sam Mason* P.E., LEED AP BD+C, BEMP
Principal
*Encompass Energy, LLC*
P: 443-410-1534
E: sam.mason at encompassenergyLLC.com
W: www.encompassenergyLLC.com

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