[Equest-users] AIR/TEMP-CONTROL keyword

Chris Jones cj at enersave.ca
Fri Feb 22 17:22:06 PST 2013


Staged Capacity DX Cooling and Heating
This modeling capability is only available for P\T\7T systems. 
Functionally, die staged-volume system is quite similar
to the packaged variable-volume, variable-temperature system, and 
shares its code word.
AIR/TEMP-CONTROL
For the PWT systems only, accepts a code-word specifying die type of 
airflow and temperature control employed:
VARIABLE-YOL/TE^IP    the default, specifies the common PWT 
temperature control strategy.
STAGED-VOLUME specifies die staged-volume strategy described herein.

Did you ever see Sally MacWhorter?

Now Bill you finish this limeric!

At 06:24 PM 22/02/2013, you wrote:
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>What is being referred to by the System "AIR/TEMP-CONTROL" keyword 
>in the DOE2 help menu, below? Is this the SYSTEM: COOL-CONTROL and 
>SYSTEM:HEAT-CONTROL?
>First correct answer wins a limerick on the topic of your choice.
>
>Thanks,
>Bill
>
>COMPRESSOR-TYPE
>Takes a code-word that specifies the compressor speed control 
>mechanism; this keyword is intended for use in modeling a packaged 
>direct expansion heat pump or air-conditioning that incorporated 
>variable speed compressor control:  It is suggested that the 
>SYSTEM:AIR/TEMP-CONTROL keyword be used for systems which 
>incorporate multiple steps or stages of capacity rather than this 
>keyword/codeword combination.
>SINGLE-SPEED            specifies that the compressor operates at a 
>constant speed, and modulates its capacity by cycling on/off. This 
>is the default for most system types.
>DUAL-SPEED               specifies that the compressor has two 
>stages of capacity. This is appropriate for the residential system 
>(for RESYS, RESYS2 only).  It is suggested that the 
>SYSTEM:AIR/TEMP-CONTROL be used for staged capacity systems rather 
>than this keyword/codeword combination.
>VARIABLE-SPEED         specifies that the compressor can vary its 
>speed to exactly match the capacity required. This is applicable to 
>RESVVT, PSZ, PVAVS and PVVT systems.
>
><mailto:wbishop at pathfinder-ea.com>
>Senior Energy Engineer 28Jun2012
>
>
>
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 >>
Christopher Jones, P.Eng.
Suite 1801, 1 Yonge Street
Toronto, ON M5E1W7
Tel. 416-203-7465
Fax. 416-946-1005
email cj at enersave.ca
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