Rheem Select WP14AZ42AJ2NA - 3.5 Ton, 14.3 SEER2/9 EER2, 2-Stage Heat Pump, 208-230/1/60, R410A Features and Benefits: Fully Louvered Steel Cabinet: Features durable construction to add protection from yard hazards, weather corrosion Two-Stage Scroll Compressor*: Features two speeds (high and low) of cooling and heating, providing more precise temperature control, lower humidity and greater efficiency when compared to single stage compressors Inverted Reversing Valve: Allows for faster heat transfer with gravity assist shifting and reduced joint stress for increased reliability Easily Accessible Control Box: Ease of installation and serviceability Rheem RH2TZ3617STANNJ- RH2TZ 2 Ton, 17.5" W, 2-Stage Air Handler Constant Torque Motor (ECM), R410A, 208-240/1/60RH2TZ Constant Torque Motor (ECM) Features and Benefits RH2TZ features a Constant Torque motor (ECM) which provides enhanced SEER2 performance with most Rheem outdoor units. Versatile 4-way convertible design for upflow, downflow, horizontal left and horizontal right applications. Factory-installed indoor coil. Sturdy cabinet construction with 1.0 inch [25.4 mm] of foil faced insulation for excellent sound and insulating characteristics Field-installed auxiliary electric heater kits provide exact heat for indoor comfort. Kits include circuit breakers which meet U.L. and cUL requirements for service disconnect 11/2 ton [5.3 kW] through 5 ton [17.6 kW] models are between 421/2 to 57 inches [1080 to 1448 mm] tall and 22 inches [559 mm] deep. All models meet or exceed 330 to 400 CFM [156 to 189 L/s] per ton at .3 inches [.7 kPa] of external static pressure. Enhanced airflow up to .7? external static pressure. Evaporator is constructed of aluminum fins bonded to internally grooved aluminum tubing. Suitable for application in mobile homes. Cabinet air leakage less than 2.0% at 1.0 inch H2O when tested in accordance with ASHRAE Standard 193.