Yes, it is generally possible to set the room temperature below 22°C (71.6°F) on a window air conditioner, provided the unit has the capability to do so. Most window AC units have a temperature range that allows you to set the desired temperature within a certain range, usually between 16°C (60.8°F) and 30°C (86°F).
Keep in mind that the actual achievable temperature may vary depending on several factors, including the model and capacity of the air conditioner, the outside ambient temperature, and the insulation of the room. Some older or less powerful window AC units might struggle to maintain extremely low temperatures in very hot and humid conditions.
To set the temperature on a window air conditioner, you typically use the unit's control panel or remote. Look for temperature control buttons or settings to adjust the desired temperature to your preference. If you're having trouble reaching your desired temperature, consider the following tips:
Ensure the unit is properly sized for the room: An undersized air conditioner might struggle to cool a large or heavily insulated room effectively.
Keep doors and windows closed: Minimize heat intrusion from outside by keeping doors and windows closed while the air conditioner is running.
Use curtains or blinds: Use curtains or blinds to block direct sunlight and reduce heat absorption.
Regular maintenance: Keep the air conditioner clean and well-maintained to ensure optimal performance.
Consider a dual-zone or multi-split system: If you need precise temperature control in different areas of your home, a multi-split or dual-zone air conditioning system might be a better option than a window AC.
Always refer to the manufacturer's manual or guidelines for specific instructions on how to set and use your window air conditioner properly. If you encounter any difficulties or if the unit is not functioning as expected, consider consulting a professional HVAC technician for assistance.