Incorrect tonnage selection voids manufacturer protection on 2000 square foot homes

https://precisionwarrantyhvac.fotosdefrases.com/heat-pump-efficiency-drops-below-35-degrees-repair-or-replace-decision-thresholds

For a 2000 square foot home in Sacramento, you typically need a 3.5 to 4 ton unit, but sizing incorrectly creates void risk that leaves you exposed to uncovered repair costs