Specifications include, but are not limited to: approximately 10-20 packaged terminal air conditioner (PTAC) units. The packaged terminal air conditioner (PTAC) units must fit existing wall sleeves that are in a masonry opening of an 11 story housing unit. ; A. Island Aire. 9250722 or Equivalent (Equivalency determined by project manager) Description: 15,000 BTU cooling chassis only with 5.0 kW electric heat @ 230/208 volts. 1 year parts & labor – warranty minimum 2.2 MANUFACTURED UNITS A. Provide packaged, self-contained, through-the-wall air cooled terminal air-conditioning units, with electric refrigeration system, electric heating, and built-in temperature controls. 2.3 CHASSIS A. Refrigeration System: 1. Direct expansion cooling coil 2. Hermetically sealed compressor with internal spring isolation, external isolation, ; permanent split capacitor motor and overload protection. 3. Accumulator. 4. Condenser coil and fan. 5. Capillary restrictor. B. Air System: Centrifugal forward curved evaporator fans with two speed permanent split capacitor motor, permanent washable filters, positive pressure ventilation damper with concealed manual operator. C. Heating Coil: Electric D. Condensate Drain: Drain pan with a ¼” slope towards the exterior of the building to direct condensate to condenser coil for re-evaporation. Provide drain holes, “weep holes” on the exterior of the unit for additional condensate removal/