Rheem Select 5 Ton 21″ Electric HVAC System with Heat Kit – Up to 15.2 SEER2
From $4,734.63

The Rheem Select 5 Ton 21 Inch Electric HVAC System combines an R-454B air conditioner, compact 21-inch multiposition air handler and 20 kW electric heat kit. This complete residential system provides high-capacity cooling, flexible airflow and powerful supplemental heating.
Rheem Select 5 Ton 21 Inch Electric HVAC System
The Rheem Select 5 Ton 21 Inch Electric HVAC System delivers high-capacity residential cooling, flexible indoor airflow and powerful supplemental electric heating. This complete configuration includes a Rheem Select outdoor air conditioner, a compact 21-inch multiposition air handler and a 20 kW electric heat kit.
The system uses R-454B refrigerant and can achieve efficiency ratings up to 15.2 SEER2 with an approved matched equipment combination. With approximately 60,000 BTUs of nominal cooling capacity, it is designed for properties with a professionally calculated 5-ton cooling requirement.
What Is Included with the Rheem Select 5 Ton 21 Inch Electric System?
The Rheem Select 5 Ton 21 Inch Electric system includes the following primary components:
- Rheem WA14AY60AJ1NA air conditioner: A 5-ton outdoor condenser with single-stage cooling, a scroll compressor and R-454B refrigerant.
- Rheem WH2TY6021STANAJ air handler: A 5-ton multiposition indoor unit with a 21-inch-wide cabinet, constant-torque motor, two-stage airflow and an aluminum A-coil.
- PROTECH RXBH-24A20J-B heat kit: A 20 kW electric heater kit designed for compatible Rheem air handlers and 208–240 volt applications.
Final performance depends on the complete matched configuration, electrical service, ductwork, airflow settings and professional installation. All component models should be confirmed before the order is completed.
Benefits of the 21 Inch Air Handler
The defining feature of this Rheem Select 5 Ton 21 Inch Electric HVAC System is the narrower indoor cabinet. The WH2TY6021STANAJ measures 21 inches wide, 21 11/16 inches deep and 57 inches high. This configuration can be useful when the available indoor equipment area cannot accommodate the wider 24.5-inch version.
The air handler supports upflow, downflow, horizontal-left and horizontal-right installation. Its four-way convertible design provides flexibility for closets, utility rooms, attics and other approved indoor locations, subject to required service clearances.
Key System Features
- Nominal 5-ton or 60,000 BTU cooling capacity
- Efficiency ratings up to 15.2 SEER2
- Lower-GWP R-454B refrigerant
- Single-stage scroll compressor
- 21-inch-wide indoor air handler
- Four-way multiposition configuration
- Constant-torque blower motor
- Two-stage indoor airflow
- Aluminum indoor A-coil
- 20 kW supplemental electric heat
High-Capacity Rheem Select Cooling
The condenser included with the Rheem Select 5 Ton 21 Inch Electric system belongs to Rheem’s Endeavor Line Select Series. Its single-stage scroll compressor supplies consistent cooling output during warm weather, while the fully louvered steel cabinet helps protect the outdoor coil from weather, debris and common yard hazards.
An optimized coil design supports effective airflow and heat transfer. The outdoor unit also provides accessible service areas that help qualified technicians complete installation, inspections and future maintenance.
Review its technical information on the official Rheem condenser page.
Constant-Torque Airflow and Multiposition Installation
The WH2TY6021STANAJ air handler uses a constant-torque blower motor with two stages of airflow. The manufacturer lists approximately 1,600 CFM on low airflow and 1,725 CFM on high airflow. Final settings must be adjusted according to the matched equipment, duct system and installation requirements.
The cabinet includes one inch of foil-faced insulation to support quieter operation. Its aluminum indoor coil is designed for corrosion resistance, while the cabinet construction provides less than 2% air leakage when tested under the conditions specified by the manufacturer.
Additional air-handler information is available on the official Rheem air handler page.
Electric Heating Without a Gas Furnace
The Rheem Select 5 Ton 21 Inch Electric HVAC System uses a 20 kW electric heat kit instead of a gas furnace. Electric resistance elements heat the air inside the air handler before the blower distributes it through the property’s duct system.
A 20 kW heater requires substantial electrical capacity. A qualified professional must confirm panel capacity, voltage, wiring, breaker requirements and local electrical codes before installation. The heater size should also be evaluated according to the property’s heating load and regional climate.
Is a 5 Ton System the Correct Size?
A 5-ton HVAC system should not be selected using square footage alone. Insulation, ceiling height, window area, sun exposure, climate, occupancy, duct design and air leakage can significantly affect the required capacity.
An oversized system may cycle too frequently and provide inadequate humidity control. An undersized system may run continuously without maintaining the desired temperature. Use the Xpress AC Sizing Calculator for an initial estimate and request a professional Manual J load calculation before ordering.
Professional Installation Required
The Rheem Select 5 Ton 21 Inch Electric system must be installed by a qualified HVAC professional familiar with R-454B equipment and applicable A2L refrigerant procedures. The installer must verify refrigerant piping, electrical capacity, airflow, duct sizing, condensate drainage and local code requirements.
A thermostat, line set, condenser pad, disconnect, drain pan, electrical wiring and other installation materials may be required. These accessories are not included unless they are specifically identified in the selected package.
Why Buy This System from Xpress AC Supply?
When you purchase the Rheem Select 5 Ton 21 Inch Electric HVAC System from Xpress Supply, you receive genuine equipment, competitive pricing and support verifying component compatibility. Our team can also help identify additional installation supplies before shipment.
Browse our complete selection of electric HVAC systems or contact Xpress Supply for assistance choosing the correct configuration.
| Application | Residential |
|---|---|
| Configuration Airflow | Horizontal, Upflow, Upflow/Downflow |
| Cooling Capacity | 5 Tons |
| Efficiency | 15.2 SEER2 |
| System Type | Electric, Straight Cool |
| Stage | Single Stage |
| Refrigerant | R-454B |
| Home Size | 1,800 – 2,500 sq ft |
| Model # | RXBH-24A20J-B, WA14AY60AJ1NA, WH2TY6021STANAJ |

About Rheem
Founded in 1925, Rheem has more than a century of experience developing dependable heating, cooling, and water heating solutions. Rheem HVAC equipment combines proven engineering, energy-efficient performance, and advanced comfort technology for residential and light commercial applications.Why Choose Rheem?
- Air conditioners, heat pumps, furnaces, air handlers, coils, and complete HVAC systems
- High-efficiency options designed to reduce energy consumption
- Durable components and factory-tested performance
- EcoNet® smart monitoring compatibility on select systems
- Solutions for residential and light commercial applications

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