The Platinum 16 SEER packaged system is a high-efficiency gas/electric heat pump that provides up to 16.60 SEER/81% AFUE in 3, 4, and 5-ton units. Contained within one sleek cabinet, components include a two-stage Duration™ compressor, two-stage gas heat, a Spine Fin™ condenser and a composite Vortica™ blower motor with Comfort R™ mode. This model operates in 3-phase only.