• Supports two-stage cooling units
• Flame rollout sensors standard
• Category I venting
• Blocked vent switch
• Dehumidification feature in cooling
• Electronic air cleaner terminal
• Adjustable heating blower OFF delay
• Factory set blower ON delay
• RPJ aluminized steel heat exchanger
• High temperature limit control prevents overheating
• Direct ignition with silicon nitride ignitor
• Inshot burners
• Insulated blower compartment
• 33 1/3” (847mm) high, for ease of installation
• 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
• Three position vent elbow capability
• Through the casing flue pipe for counterflow applications
• Common venting with other Category I appliances
• Masonry chimney adapter available
• Self diagnostics
• Slide out blower assembly

• ION™ Communicating Control System (recommended, not included)
• Two stage heating operation
• Two stage induced draft blower
• Variable speed ECM blower motor
• 24 Vac humidifier terminal
• One piece prepainted steel cabinet
• California NOx approved
• Capacities are for upflow application; horizontal and downflow slightly lower

Warranty

10 year "No Hassle Replacement" limited warranty
Lifetime heat exchanger limited warranty with timely registration
5 year parts limited warranty (10 year with timely registration)