*Not approved for use in mobile homesUnder the terms of all manufacturer's warranty and to comply with federal refrigerant handling laws, it is required that the system be checked, started up and signed-off on by a licensed air conditioning/heating contractor prior to use. Failure to comply with this provision will void all factory warranties. Keep a copy of the installation ticket for your records. Please ensure that all supply and return ductwork is properly sized and that a permit is obtained (where required). Always conform with applicable local and state codes. Electrical connections should only be made by a licensed electrical contractor. Unqualified persons should never attempt installation of this or any HVAC system.