PERFORMANCE Multi 18-speed, constant torque (MCT) ECM blower motor for electrically efficient operation all year long in heating, cooling and continuous fan operation. Enhanced diagnostics with easy to read 3-digit display for faults and status. Single-speed inducer motor, and single-stage gas valve. Silicon Nitride Hot Surface Igniter. Dual fuel capable with a compatible heat pump and thermostat for energy-saving heating performance Adjustable blower speed for heating and cooling. Aluminized-steel primary heat exchanger. Stainless-steel condensing secondary heat exchanger. INSTALLATION FLEXIBILITY On-board NFC antenna makes setup a tap away when using the service technician app. 4-way multipoise design for upflow, downflow or horizontal installation, with unique vent elbow for optional venting through-the-cabinet downflow venting capability. Factory-configured ready for upflow applications. Ideal height 35” (889 mm) cabinet: short enough for taller coils, but still allows enough room for service. Two-pipe venting, single-pipe venting or ventilated combustion air. APPLICATIONS Approved for Twinning applications with accessory kit (48060B, 48080B, 60080C, 60100C, 66120D, 66140D models, only). Approved for Manufactured Housing/Mobile Home applications with MH accessory kit. Convertible to propane with gas conversion accessory kit. CERTIFICATIONS All sizes meet ENERGY STAR® Version 4.1 criteria for gas furnaces: 95% AFUE. Cabinet air leakage less than 2.0% at 1.0 in. w.c. and cabinet air leakage less than 1.4% at 0.5 in. w.c. when tested in accordance with ASHRAE standard 193. All sizes can be installed in air quality management districts with a 40 ng/J NOx emissions requirements.
