the compressor's cooling capacity difference from Bitzer selction software

[Jiazi]

Hi,all
The bitzer software, under 2-stage semi-herm. reciprating compressor, they have two cooling capacity data, Qo & Qo*, and they are different.

What's the differnce between them? The Bitzer's paper catolog always list Q0*, so what's the fuction of Qo?

Thanks

10604

[The Viking]

Different standards of calculation by the look of things, the Qo* is calculated to EN 2900 standards.

:cool:

[Jiazi]

Then what the standard for the Qo? what's Qo used for?

Regards
Jiazi

[Peter_1]

The first is with the inputs you gave in and the second wit asterisk is calculated using the EN2900 standard, mostly other SH and SC than you specified in your inputs; EN2900 uses standard values.

[Jiazi]

Thank you all for your kindly input

[D.D.KORANNE]

While selecting compressor maintainthe diffrence between evaporating & suction gas temp at about 20.

Dd koranne