- This question addresses the importance of proper sizing and the various types of AC units available (e.g., central, ductless, window units) to ensure efficient operations and energy efficiency. 2. **How frequently should an air conditioning system un

- This question addresses the importance of proper sizing and the various types of AC units available (e.g., central, ductless, window units) to ensure efficient operations and energy efficiency. 2. **How frequently should an air conditioning system undergo regular maintenance to ensure optimal performance, and what key tasks are typically involved in this maintenance?
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