4 Ton Rheem 16 SEER2 R454B Inverter Heat Pump System RP17AY48AJVCA, RH2TY4821STANNJ
This 4-ton Rheem system matches the inverter-driven RP17AY48AJVCA condenser with the RH2TY4821STANNJ two-stage air handler for R-454B refrigerant, sized for the higher loads of larger homes. The inverter compressor scales output to the demand while the constant-torque ECM air handler keeps airflow steady, giving a bigger home strong capacity on design days and quiet, efficient operation the rest of the year in an AHRI-certified 16 SEER2 matched system.
Is the 4 Ton System the Right Size?
A 4-ton system typically fits larger homes of about 1,800 to 2,400 square feet, though open floor plans, high ceilings, and warm climates can raise the requirement considerably.
Large window areas, multiple stories, and higher occupancy increase heat gain that a load calculation captures far better than floor area. The inverter-driven RP17AY48AJVCA suits homes where a single-stage unit would short-cycle, but confirm a nominal 4-ton system with a Manual J calculation.
Ideal for: larger single-family homes, sizable two-story layouts, and warm-climate homes that want a complete inverter system with reliable capacity.
Need more capacity? Step up to the 5 Ton Rheem RP17AY60AJVCA Heat Pump System for the largest residential and light-commercial spaces.
Recommended sizing ranges are general guidelines only. Actual system requirements depend on insulation, climate, ductwork, window load, and air-sealing. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condenser | RP17AY48AJVCA – 4 Ton Inverter-Driven Heat Pump |
|---|---|
| Indoor Air Handler | RH2TY4821STANNJ – 4 Ton Two-Stage Constant-Torque ECM |
| System Efficiency | 16 SEER2 (AHRI-certified matched system) |
| Nominal Capacity | 4 Tons (48,000 BTU class) |
| Heating Output | Up to 45,500 BTU/h @ 47°F / up to 9.5 HSPF2 |
| Refrigerant | R-454B (A2L, low GWP) |
| Electric Heat Kit | Field-installed (5/8/10 kW) – sold separately |
The RH2TY4821STANNJ multi-position air handler uses a wider 21-inch cabinet to support 4-ton airflow, installs in upflow, downflow, or horizontal orientation, and is built for R-454B with a factory A2L refrigerant-detection location. The outdoor unit ships with a bi-flow liquid-line filter drier and the integrated PlusOne Refrigerant Detection System.
Condenser & Air Handler Features
RP17AY48AJVCA Condenser
- Inverter-driven PlusOne variable-speed compressor prevents short-cycling on big loads
- Quiet as low as 58 dBA despite higher capacity
- 7mm copper coil and brushless DC condenser motor for efficiency and reliability
- EcoNet-capable control with PlusOne Diagnostics & Bluetooth
- 10-year conditional parts warranty with registration
RH2TY4821STANNJ Air Handler
- Two-stage constant-torque ECM motor sized for 4-ton airflow
- Wider 21-inch multi-position cabinet for flexible installs
- Built for R-454B with a factory A2L refrigerant-detection location
- Accepts field-installed electric heat kits for supplemental heat
- Non-communicating design controlled by a standard 24V thermostat
With the non-EcoNet RH2TY air handler, this system is controlled by a conventional 24V thermostat, and we recommend the ecobee Smart Thermostat Lite (EB-STATE7P-01). Via the Rheem algorithm, the inverter condenser runs full variable speed with the utility 1 & 2 jumpers installed or two-stage operation without them. For full EcoNet communicating control with the Rheem EcoNet Smart Thermostat, pair the condenser with the variable-speed RH2VY4821STACNJ EcoNet air handler instead.
Specifications & Manuals
Product documentation includes condenser and air handler technical specifications, installation instructions, the R-454B charge chart, and warranty information to assist with equipment selection, installation, and service.
Frequently Asked Questions
Why is the 4-ton system rated 16 SEER2 instead of 17?
Efficiency ratings are assigned to the matched combination. Paired with the constant-torque RH2TY4821STANNJ air handler, this 4-ton system is AHRI-certified at 16 SEER2, slightly below the variable-speed air-handler pairing.
What air handler comes with the 4-ton RP17AY48 system?
It includes the RH2TY4821STANNJ, a two-stage constant-torque ECM air handler in a 21-inch multi-position cabinet built for R-454B.
How is the 4-ton system controlled without EcoNet?
The RH2TY air handler is non-communicating, so the system uses a standard 24V thermostat. We recommend the ecobee Smart Thermostat Lite, model EB-STATE7P-01.
What cabinet width is the 4-ton RH2TY air handler?
The RH2TY4821STANNJ uses a 21-inch-wide multi-position cabinet to accommodate the higher airflow of a 4-ton system.
Does the 4-ton system need a matched indoor coil for R-454B?
The system already includes a matched R-454B air handler. Any indoor components must be approved for R-454B; R-410A or R-22 coils are not compatible.
Is this 4-ton system AHRI certified?
Yes. The RP17AY48AJVCA and RH2TY4821STANNJ pairing is a certified matched system under AHRI certificate 218160611.
RP17AY Technical SpecificationsRP17AY BrochureRP17AY Charge ChartRP17AY Submittal SheetRP17AY Installation InstructionsRH2TY Technical SpecificationsRH2TY Installation InstructionsRheem Warranty Certificate
