Final answer:
The conversion of a heating system fan to a cooling fan entails more than changing the fan or its speed; it requires revamping the system for refrigerant-based heat exchange.
Step-by-step explanation:
When converting a heating system fan to a cooling fan, the main answer to what is required for this conversion is none of the options listed directly address the fundamental change necessary to convert a heating system fan to a cooling type fan. Generally, such a conversion is not simply about changing the fan itself but rather involves a change in the system to which the fan is connected.Explanation in more than 100 words: Cooling a space involves removing thermal energy, which is a more complex process than simply heating, which adds energy into a space. A cooling fan is typically part of an air conditioning system, which functions by extracting heat from an enclosed area and dissipating it outside. This process is achieved through the use of refrigerants and a heat exchange system. Therefore, to convert a heating system fan to a cooling system, it would require more than just adjusting the fan's speed; it would involve integrating the fan into a system capable of refrigerant-based heat exchange.Conclusion: Although a 2-speed or variable speed fan can be beneficial in a cooling system to help modulate the airflow based on the cooling needs, the conversion from a heating fan to a cooling fan is not as simple as changing the type of fan or its speed. It would require significant modifications to the heating system to enable it to function as a cooling system.