[Equest-users] Heating and cooling coil discrepencies in hourly reports

[Hwakong Cheng]

Patrick,

 

Depending on your system type, only certain DOE-2 hourly variables will apply and will be output in the hourly reports. I think that will explain your zero values and perhaps some of the non-sensical ones. Buried within the DOE-2 documentation are some tables that describe which variables are "appropriate" for each system type. This applies to both system and zone variables. I, personally, find the tables in the documentation cumbersome both to find and to read, so I've reformatted to my own taste (attached here).

 

Hope that helps and good luck,

 

Hwakong
 


Date: Fri, 29 Jan 2010 14:55:14 -0600
From: pco at MichaelsEngineering.com
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Heating and cooling coil discrepencies in hourly reports


Hello all,
It has been my experience when looking at the temperature conditions at the system level around the heating and cooling coils that everything seems totally bogus in the hourly reports.  Either the values just plain don’t make sense i.e. the temperature off the coiling coil is higher than what is coming off the heating coil during heating mode.  Or all the values for the coil temps, mixed air, etc are just zero.  Has anyone had experience with this or know how it’s supposed to be setup/work??
These bits of data are really important to see how the system is actually operating and it’s frustrating that loads are being met and everything seems to be working except that one can’t accurately see what is going on with mixed air, discharge (from the system) and supply (to the zone; after reheat for example) temperatures.
I am sure other people have seen this but I couldn’t find any threads with a quick search.  Any ideas are appreciated?  Thanks,

-Patrick
 		 	   		  
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