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FOR FIELD INSTALLATION WITH EXISTING WALL SLEEVES, OUTDOOR LOUVERS, AND INDOOR PANELS AS SPECIFIED ON THE PRODUCT. 2 52 CE A 3 12 3 0 1 AA Series Designation PTAC (Packaged Terminal Air Conditioner) CE – Cooling with Electric Heat CQ – Heat Pump Chassis Options AA – Standard CP – Corrosion Protection RC – Wall Thermostat Control RP – Wall Thermostat Control with Corrosion Protection Packaging 1 – Domestic Non-Performance Changes 0-9 Electrical Data 3 – 230/208-v, 60 Hz 4 – 265-v, 60 Hz Latest Re