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Re: [EnergyPlus_Support] VRF Error

It means the VRF system turned off since the outdoor temperature is 
above 20C (the maximum OA temp that allows operation).

You can either increase the input for Heating Maximum Outdoor Dry-Bulb 
Temperature from 20C to 25C and assume the performance is unaffected by 
this change from manufacturers recommendations, or include a backup 
system to condition the zone when the VRF system is off.


On 2/28/2013 7:06 AM, zenithshahir wrote:
> Dear all
>   While modelling VRF system i am getting warning.
> VRF Heat Pump Min/Max Outdoor Temperature in Heating Mode Limits have been exceeded and VRF system is disabled.
> ... Outdoor Dry-Bulb Temperature                 = 24.362
> ... Heating Minimum Outdoor Dry-Bulb Temperature = -20.000
> ... Heating Maximum Outdoor Dry-Bulb Temperature = 20.000
> ... Check VRF Heat Pump Min/Max Outdoor Temperature in Heating Mode limits.
>   
> is this means VRF system is not working. can i ignore this warning
>   
>
>
>
>
> ------------------------------------
>
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>
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>
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>

-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
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------------------------------------

Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

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.
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