COMFORT™ 80 ULTRA LOW NOx GAS FURNACE The 58SU0B 4-way Multipoise Gas Furnaces offer features not found in other single-stage 80% gas furnaces. Improved serviceability with the 3 digit status display and NFC enabled board allowing setup via the service tech app. These models meet the nitrogen oxides (NOx) emission limit of 14 nanograms/joule for the South Coast Air Quality Management District and San Joaquin Valley Air Pollution Control District in California. The gas furnace control system provides fault code storage in the event of power outages. Applications are easy with 4-way multipoise design, 6 different venting options, and a design for easy service access.
EFFICIENCY • 80% AFUE • 40K, 60K, 80K, 100K BTUh • Ultra-low NOx emissions - meets the nitrogen oxides (NOx) emission limit of 14 nanograms/joule for the South Coast Air Quality Management District and San Joaquin Valley Air Pollution Control District in California. TECHNOLOGY • Single-stage gas valve • Two-stage cooling capability • Multi 18-Speed, Constant Torque (MCT) ECM blower motor • Pre-mix burner with pilot free • Perfect Light™ SiN Igniter for physical and electrical robustness and durability • Variable speed inducer motor • Stainless steel, tubular heat exchanger PERFORMANCE • Pre-mix burner with variable speed inducer • Insulated blower compartment for quiet operation, and inner door for tighter sealing • Draft safeguard switch designed to ensure proper furnace venting • Dual Fuel compatible DESIGN AND INSTALLATION • Approved for installations up to 5,400 feet • Versatile venting for tight-fit applications • On-board NFC antenna makes setup a tap away when using the Carrier service technician app • Factory shipped for natural gas, not convertible to propane • Four-position furnace: Upflow, Horizontal Right, Horizontal Left, Downflow (with 6 different vent options) • 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
