PACKAGED ROOFTOP AIR SOURCE HEAT PUMP: HP-KIT1 - A. General: Electric heating and cooling unit complete with fan(s), motor(s), motor contactor/drive, direct-expansion cooling coil, electric or water heating coil, compressor(s), economizer section, controls, filters, and accessories. The units shall be downflow or horizontal airflow as shown on drawings. B. Casing: 1. Exterior Panels: Single -wall construction, minimum 22-gauge galvanized steel 2. Casing Insulation: a. Material: Minimum 1/2" thickness, foil face fiberglass. Insulation shall be glued and mechanically fastened to panels. Panel design shall have no exposed insulation edges. b. Insulation Thickness: 1 inch. 3. Panels and Doors: a. Panels: 1) Fabrication: Formed and reinforced with same materials and insulation thickness as casing. a) Fasteners: Two or more camlock type for panel lift-out operation. Arrangement shall allow panels to be opened against air-pressure differential...
