The Rheem Prestige Series of air conditioners is comprised of three types: The two-stage serial communicating units (RASL-JEC, RARL-JEC), the two-stage units (RARL-JEZ, RASL-JEZ) and the single-stage unit (RAPM-JEZ).
The two-stage serial communicating units have a serial communicating enabled comfort system that includes onboard diagnostics. They also have an active protection feature that halts the compressor if harmful conditions are detected and then sends a notice to the thermostat that instructs the homeowner to call a service technician. These models come with a 2-stage Copeland scroll compressor, steel cabinet, high/low pressure controls and can reach up to 19.5 SEER. They are also Legacy Enabled, meaning they can be used with other Rheem Prestige components already in the home.
Both the two-stage and single-stage models have the Comfort Systems onboard diagnostic systems and Active Protection to stop the compressor in the event of potentially damaging conditions, and are Legacy-Enabled. They are equipped with a scroll compressor, are encased by a steel cabinet,and have high/low pressure controls. The two-stage units can reach up to 18.5 SEER, while the single-stage units can attain 16 SEER.
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