Rheem Select 3.5 Ton Gas Split System – 80% AFUE – Upflow/Horizontal

The Rheem Select 3.5 Ton Gas Split System is a complete residential straight-cool configuration for properties that use a gas furnace for heating. It combines an R-454B outdoor air conditioner, a cased evaporator coil, and an 80% AFUE gas furnace designed for upflow or horizontal installation.

This system provides approximately 42,000 BTU of nominal cooling capacity. The currently displayed AHRI match lists 39,000 BTU of certified cooling capacity and 15.2 SEER2. Actual performance depends on installation conditions, ductwork, airflow, climate, and proper equipment setup.

Rheem Select 3.5 Ton Gas Split System Overview

The outdoor component is the Rheem Select WA14AY42AJ1NA air conditioner from the Endeavor Line Select Series. This 3.5-ton condenser uses a single-stage scroll compressor, R-454B refrigerant, and a 208/230-volt, single-phase electrical supply.

The outdoor unit is paired with the TCFY4821STANMC cased evaporator coil and W801T1005A21UHSNAS gas furnace. The furnace provides 100,000 BTU per hour of heating input and approximately 80,000 BTU per hour of heating output at 80% AFUE.

What’s Included

• Outdoor air conditioner: WA14AY42AJ1NA
• Cased evaporator coil: TCFY4821STANMC
• Gas furnace: W801T1005A21UHSNAS
• Nominal cooling capacity: 3.5 tons, approximately 42,000 BTU per hour
• AHRI-listed cooling capacity: 39,000 BTU per hour
• AHRI-listed efficiency: 15.2 SEER2
• Heating configuration: Single-stage natural gas furnace
• Refrigerant: R-454B
• Installation orientation: Upflow or horizontal

Accessories and installation materials shown in the product configurator are not automatically included unless selected and listed in the final order.

Key Features

The Rheem Select 3.5 Ton Gas Split System provides a coordinated equipment package for residential cooling and gas heating applications.

• Complete straight-cool split system with gas heating
• Nominal 3.5-ton cooling capacity
• Single-stage outdoor air conditioner
• R-454B refrigerant platform
• 80% AFUE single-stage gas furnace
• Constant-torque indoor blower motor
• Upflow and horizontal furnace installation options
• Factory-installed TXV in the cased evaporator coil
• Matching 21-inch furnace and coil cabinet widths
• Designed for residential split-system applications

Technical Specifications

Outdoor Air Conditioner

• Model: WA14AY42AJ1NA
• Product line: Rheem Endeavor Line Select Series
• System type: Split-system air conditioner
• Nominal capacity: 3.5 tons
• Nominal cooling: Approximately 42,000 BTU per hour
• AHRI-listed capacity: 39,000 BTU per hour
• Compressor: Single-stage scroll compressor
• Refrigerant: R-454B
• Electrical supply: 208/230 volts, single phase, 60 Hz
• Published sound level: 73 dB

Cased Evaporator Coil

• Model: TCFY4821STANMC
• Coil type: Cased evaporator coil
• Nominal coil capacity: 4 tons, approximately 48,000 BTU per hour
• Cabinet width: 21 inches
• Metering device: Factory-installed TXV
• Refrigerant compatibility: R-454B
• Coil construction: Aluminum
• Configuration: Multipoise cased coil
• Liquid line connection: 3/8 inch
• Suction line connection: 7/8 inch

Gas Furnace

• Model: W801T1005A21UHSNAS
• Heating input: 100,000 BTU per hour
• Heating output: Approximately 80,000 BTU per hour
• Efficiency: 80% AFUE
• Heating stages: Single stage
• Blower type: Constant-torque motor
• Electrical supply: 115 volts, single phase, 60 Hz
• Cabinet width: 21 inches
• Installation orientation: Upflow or horizontal
• Fuel type: Natural gas

System Compatibility

The Rheem Select 3.5 Ton Gas Split System is intended for residential applications that require central air conditioning and gas heating. This Rheem Select 3.5 Ton Gas Split System uses matching 21-inch evaporator-coil and furnace cabinets to support proper alignment during an upflow or horizontal installation.

The included evaporator coil has a nominal 4-ton capacity designation. A higher nominal coil capacity can be used in an approved matched system, but the final combination and efficiency must be confirmed through the applicable AHRI certificate.

Final equipment selection should not be based only on square footage. Climate, insulation, windows, ceiling height, occupancy, duct condition, air leakage, heating load, and other building characteristics affect the required capacities.

Use the Xpress AC Supply sizing calculator for preliminary guidance and obtain professional Manual J cooling and heating load calculations before ordering.

Refrigerant Information

The Rheem Select 3.5 Ton Gas Split System uses R-454B refrigerant. R-454B is classified as an A2L refrigerant and requires compatible components, service equipment, installation procedures, and technician training.

Do not combine this system with equipment designed for a different refrigerant. The outdoor unit, evaporator coil, metering device, refrigerant lines, and applicable safety controls must comply with the manufacturer’s R-454B installation requirements.

Warranty and Documentation

Warranty coverage for the Rheem Select 3.5 Ton Gas Split System depends on the individual component, application, installation, registration status, and current manufacturer terms. Review the warranty documentation supplied with each component before installation.

Visit the official Rheem WA14AY42AJ1NA product page for verified outdoor-unit specifications. Additional manuals and installation documents can be located through the Rheem Resource Center.

Consult the official Rheem warranty information for current warranty terms and registration guidance. Warranty eligibility should be confirmed for every component in the package.

Professional Installation Notice

The Rheem Select 3.5 Ton Gas Split System must be installed and commissioned by qualified HVAC professionals familiar with gas-fired equipment and A2L refrigerants. Installation includes electrical work, refrigerant handling, venting, combustion-air verification, gas-pressure adjustment, condensate drainage, airflow setup, evacuation, charging, and safety testing.

Local permits, inspections, building codes, fuel-gas codes, and manufacturer instructions apply. Improper sizing or installation can reduce comfort and efficiency, damage equipment, create safety hazards, and affect warranty eligibility.