Generating Heat Pump Coefficients From Manufacturers Data

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There are 2 issues here.

The first being the lack of water flow data in heating mode.

• If you have data for cooling mode, you could use the same values for heating mode.
• I would review the manufacturers performance data again to be sure heating water flow rates are not mentioned somewhere in the documentation.

The second issue is the use of only a single value for any variable in these tables, in your case the water flow rates.

• The coefficients for these variables will not regress and will probably wind up as useless if not 0.
• The system should use these flow rates as constants during the simulation (no variation at all) since the regression does not include any variation in these values.