- Heavy-duty aluminized-steel tubular heat exchanger
- Stainless-steel secondary heat exchanger
- Energy-efficient, multi-speed ECM blower motor
- Durable Silicon Nitride igniter
- Quiet two-speed induced draft blower
- Self-diagnostic control board with constant memory fault code history output to an LED
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- Auto-comfort mode for enhanced dehumidification
- All models comply with California 40 ng/J Low NOx emissions standards
- Multi-position installation: upflow, horizontal left or right
- Cabinet air leakage (QLeak) = <2%
- Heavy-gauge steel cabinet with durable finish
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