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Modelling mini-split air conditioners from performance curves

asked 2015-06-08 06:21:30 -0500

Waseem gravatar image

updated 2015-06-23 08:31:00 -0500

Is there a way to model Mitsubishi split-type air conditioners from performance curves? Link to the technical data of the system along with the curves is HERE. Is there any tutorial available or some guidelines? Will this is a good idea to model it using performance curves or just by inputting cooling and heating capacities? Also, which system (object) in EP is the best representation of the attached system? The model that I am using is MUZ-SF35VE. The performance curve can also be seen below;

Cooling curves

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answered 2015-06-09 12:00:41 -0500

updated 2015-06-09 13:18:21 -0500

You will want to use the 'Coil:Cooling:DX:VariableSpeed' (10 compressor speeds) or 'Coil:Cooling:DX:MultiSpeed' (4 compressor speeds) coil objects. I don't think that performance curve above has enough data to create a model; it is only at the "rated frequency", but you need curves for multiple speeds.

BEopt has a mini-split HP option based on lab testing of a Daikin MSHP—should be relatively close to your Mitsubishi AC performance curves. There are various SEER options available in BEopt, or you can make a custom option with your desired SEER. BEopt generates an idf file that will include the E+ objects that you can use in your own idf.

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Asked: 2015-06-08 06:21:30 -0500

Seen: 396 times

Last updated: Jun 23 '15