1) External solar protection (external venetian blinds, blinds) on exposed façades. 2) A ceiling fan to gain 2-3 °C of perceived comfort without air conditioning. 3) Night-time free cooling if the building allows. 4) If all this is insufficient, a modern split air conditioner, preferably R290, with a reasonable setpoint (26 °C). This sequence drastically reduces cooling demand before investing in equipment.
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