How do I know if I need to replace the upper thermostat or the lower one

the DCL is the preferred choice

allowing it to maintain superheat control in both heating and cooling modes in heat pump circuits

manifold pressure standard

National Comfort Products 14208328 Motor Els PW 29614 How do I know ifThe National Comfort Products 14208328 Motor and Wheel Assembly is a high performance direct replacement for part number 195811, specifically engineered for CPG model packaged units and specialized gas furnace applications. Operating on a 208 230V single phase electrical configuration, this integrated venter motor and wheel assembly ensures critical draft pressure for safe combustion cycles and efficient exhaust removal. As a genuine HVAC OEM part, it