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  Armstrong Ultra SX90 Gas Furnace Cutaway Armstrong Ultra SX90 Gas Furnace  
FEATURE BENEFIT
1. No-weld, crimped 409 stainless steel S-curve primary heat exchanger, covered by a Non-Prorated Limited Lifetime Warranty.   Longer life with no welds to break. Highly corrosion-resistant. Efficient, quiet operation -- no "creaking". Non-prorated means full part replacement for length of warranty.
2. 29-4C super high-grade stainless steel secondary heat exchanger covered by a Non-Prorated Limited Lifetime Warranty.   Corrosion-resistant; extracts additional heat and injects it into the airflow for added comfort. Non-prorated means full part replacement for length of warranty.
3. Beckett aluminized steel "in-shot" with sound reducers.   Smooth, efficient light-off, quiet operation and reliable combustion efficiency.
4. Honeywell SmartValve System control increases unit reliability, integrating ignition and gas control functions.   Durable and reliable for years of trouble-free service.
5. Heavy-duty, induced draft motor with stainless steel shaft, ball bearings and fan cooling.   Durable and reliable for years of trouble-free service.
6. Solid-state integrated control board with A/C relay, plus terminals for adding an electric air cleaner, humidifier and twinning two furnaces.   Time- and money- saving convenience during installation of accessories. Twinning feature permits low-cost hookup of two furnaces for simultaneous operation.
7. Durable, one-piece steel cabinet.   Long-lasting, high-quality finish that resists scratches and rust.
8. Continuous low-speed fan capability for electronic air cleaner.   Greater comfort and fresher, cleaner air.
9. PVC or ABS exhaust.   Field-proven safe, trouble-free and economical vent system; requires no chimney.
10. Fully insulated cabinet and blower compartment.   Enhanced efficiency and quieter operation.

Note: Contact DESIGN TEMP INC. or Armstrong for the latest Armstrong specifications and ratings.
bbarta@designtemp.com
 
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