[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[EnergyPlus_Support] A warning on Heating/Cooling Coil Design Setpoint



Dear all,

I got a warning in expandedidf.err created by running E+ 3.1,

  "In HVACTemplate:System:VAV "VAV_ahu28" the Heating Coil Design
  Setpoint is greater than the Cooling Coil Design Setpoint. This may
  cause the heating coil and cooling coil to operate
  simultaneously. Check results carefully and adjust controls if needed"

According to this warning, the heating supply air temperature (T_h)
would usually be higher than the cooling supply air temperature (T_c).
It is contrary to my reasoning. For example, T_h (23C) would be higher
than T_c (17C).

Could you explain the warning?

Regards,

-- 
Jinhyok Heo
Team Leader, Energy Efficiency Div.
Ecosian Co., LTD.


------------------------------------

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 currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/