Hi Everyone,

I am facing a problem in my project regarding the output of chiller
equipment when I am considering the customized chiller curve using the
chiller details form chiller datasheet.

We know how the eQuest do the calculation for the space cooling energy
consumption:- "There is a formula to calculate the corrected EIR by
software i.e., Correction to EIR for PLR x Correction to EIR for
temperature x AHRI EIR at 100% and this calculated corrected EIR is
multiplied to operating capacity of chiller to work out the space cooling
energy consumption."

It has been noticed using the customized hourly report for chillers that
the correction to EIR for temperature & AHRI EIR at 100% is *negative
throughout the year.* I have attached the hourly results report for your
reference.

Further if I do the reverse calculation for AHRI EIR at 100% using the
values available from customized hourly report (Correction to EIR for PLR x
Correction to EIR for temperature & corrected EIR ) *it never comes the
same as what I have entered EIR at chiller lever. *

Please find the attached screenshot of customized chiller curve entered,
screenshot of EIR at 100% entered at the chiller level and chiller part
load details from manufacturer.

Has anyone faced the same issue? Waiting for the valuable reply from you
all eQuest champs.