[Equest-users] AIR/TEMP-CONTROL keyword

[Bishop, Bill]

Thanks Chris. Not sure why I couldn't find that in the DOE-2 help menu.

Did you ever see Sally MacWhorter?
New ensign - red shirt and tricorder.
She survived an attack
But when she beamed back...
A freak accident in the transporter.

~Bill

From: Chris Jones [mailto:cj at enersave.ca]
Sent: Friday, February 22, 2013 8:22 PM
To: Bishop, Bill
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] AIR/TEMP-CONTROL keyword
Importance: High

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.

[Senior Energy Engineer 28Jun2012]<mailto:wbishop at pathfinder-ea.com>


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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<mailto:cj at enersave.ca>
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