LRP14GX Low NOx Gas/Electric Packaged Unit Heat Exchanger Aluminized tubular steel for superior resistance to corrosion and oxidation Round surfaces create minimum air resistance and allow air to surround all surfaces for excellent heat transfer Compact design reduces space requirements in cabinet Inshot Burners Aluminized steel inshot burners provide efficient trouble free operation Gas Control Valve 24 volt redundant combination gas control valve combines manual shut off valve (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control Combustion Air Inducer Limit Control Factory installed behind heat exchanger access panel Automatic reset Flame Rollout Switch Factory installed on burner box Manual reset Ignition Control Board Ignition control board with LED diagnostics Low NOx Models All models are standard low NOx (40 ng/J) R-410A Refrigerant Non-chlorine based Ozone-friendly Factory pre-charged Evaporator and Condenser Coils Copper tube with aluminum fin coils Anti-Microbial Condensate Drain Pan Anti-Microbial additive resists growth of mold and mildew on drain pan which improves indoor air quality and reduces drain line blockage Service Valves Fully serviceable brass valves installed in discharge & liquid lines Scroll Compressor Compressor is installed in the unit on resilient rubber mounts for vibration free operation Two involute spiral scrolls matched together generate a series of crescent-shaped gas pockets between them