[Equest-users] Variable Speed Compressors

[Lam, Linda]

This is a question pertaining to code word COMPRESSOR-TYPE.  I am modeling a Packaged Var Vol system with modulating compressors.  For some reason the drop down box for Compressor Type under Unitary power for Cooling has been grayed out.  I have replicated the help menu for this code word below and it seems like this option should be available for PVAVS system types. Thank you in advance!


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.

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.

 
 
Linda Lam, LEED® AP
WSP Flack + Kurtz
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