Features

Easier to Sell

• Up to 98% AFUE in upflow and horizontal positions
• Up to 96.7% AFUE in downflow
• Modulating heating operation (40% - 100% capacity)
• Observer® Communicating Control System
• ION™ Communicating Control System
• Xtra SEER Variable Speed ECM blower motor
• Supports single- and two-stage cooling units
• Dehumidification feature in cooling
• Low NOx units are designed for California installations and meet 40 ng/J NOx emissions. Can be installed in air quality management districts with a 40 ng/J NOx emissions requirement.
• Cabinet air leak age 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

Tougher

• Flame roll−out sensors standard
• Adjustable heating blower OFF delay
• Factory set blower ON delay
• RPJ® primary heat exchanger
• Stainless steel secondary heat exchanger
• High temperature limit control prevents overheating
• Direct ignition with Silicon Nitride ignitor

Quieter

• Operates at quieter, lower heating rates
• Variable speed induced draft combustion blower
• Variable speed ECM blower motor
• Insulated steel cabinet

Easier To Install And Service

• Direct vent (2-pipe) or ventilated combustion air
• 24 VAC humidifier terminal
• Electronic air cleaner terminal
• 35” (889mm) high, for ease of installation and room for service
• Innovative knobs for easy door removal and secure attachment
• Factory shipped for natural gas, with propane gas conversion kits available
• Four position − upflow/ downflow/ horizontal (left / right) installation
• At least twelve different venting configurations
• Through the casing flue pipe for counterflow or horizontal applications with accessory kit (order separately)
• Concentric vent available
• Simple troubleshooting of gas valve
• Self-configuring and communicating control
• Slide out heat exchanger assembly and blower assembly

Limited Warranty*

• 10 year No Hassle Replacement™ limited warranty
• Lifetime heat exchanger limited warranty with timely registration
• 5 year parts limited warranty
• − With timely registration, an additional 5 year parts limited warranty
• * For residential applications only. See warranty certificate for complete details and restrictions, including warranty coverage for other applications.

For California Residents:

• For installation in SCAQMD only: This furnace does not meet the SCAQMD Rule 1111 14 ng/ J NOx emission limit, and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com

Unit Performance Data