Does the fan on this unit operate without heating and cooling?

Thank you for your question. Yes, the fan for this system can be used for the purposes of air circulation. This system also comes equipped with a setting that can be used for de-humidifying your space. For more information regarding this system's various settings, please review the operation manual. This manual can be found on the product page at the bottom of the product specifications section. For more assistance, please give us a call.