Fan Coils With Observer Communicating Control System.Features Smart Diagnostic: 2, 3, 4, and 5 Tons Multi-position installation. Communicating, self configuring when used with Observer Communicating Wall Control. Smart Diagnostic for easier troubleshooting Bi-flow hard-shutoff R-410A TXV metering device. HUD approved for manufactured housing. Sweat connections. Primary and secondary brass drain connections. Energy efficient variable speed ECM Motor. Ultra-low power consumption during fan only operation. High duct static capability. Pre-painted galvanized sheet metal cabinet insulation with vapor barrier. Cabinet construction designed to prevent cabinet sweating. Meets requirements of a 2% cabinet leakage rate when tested at 1.0 in. W.C. of static pressure. Modular cabinet on 5 ton model. 208/230-1-60 supply voltage. Multiple electrical entry for application flexibility. Low voltage terminal strip. Easy plug connection provided for quick installation of accessory heater packages. Factory supplied washable filter easily removed - no tools required. WARRANTY* 10 year No Hassle Replacement limited warranty. 5 year parts limited warranty With timely registration, an additional 5 year parts limited warranty * For owner-occupied residential applications only. See warranty certificate for complete details and restrictions, including warranty coverage for other applications.