If you're looking for a new PTAC unit for your 300-400 Sq. foot space, this 9000 Btu Gree unit is the perfect choice.
The Gree ETAC2-09HC230VA-CP PTAC needs 208v-230v and features Electronic controls with Resistive Electric Heat. The unit uses R-410A refrigerant. You'll need a power cord to install the unit, as well as a sleeve and grille (not included).
This Gree unit, which is rated at 12.1 EER, is a great solution for anyone needing a PTAC unit for new construction, or to replace an existing unit.
This unit includes a manufacturer's 2 year parts warranty, 2 year labor warranty, and a 5 year compressor and sealed system warranty.