3 Ton Rheem 20 SEER2 R-454B Modulating Inverter Heat Pump System
This complete 3 ton Rheem system matches the RP19AY36AJVCA inverter heat pump condenser with the RHMVY3621MEACAJ modulating air handler for a factory-paired, EcoNet communicating system rated at 20 SEER2 — the top of Rheem's efficiency lineup. Running entirely on low-GWP R-454B refrigerant, it delivers steady, quiet, whole-home comfort to mid-size homes through coordinated variable-speed operation inside and out.
Is a 3 Ton Heat Pump System the Right Size?
A 3 ton (36,000 BTU) system is one of the most common residential sizes, frequently a fit for homes in the range of roughly 1,400 to 2,000 square feet. With both the inverter compressor and the modulating blower matching output to real-time demand, this system holds even temperatures and strong humidity control instead of cycling on and off like single-stage equipment.
Square footage alone never determines capacity — duct sizing, insulation, sun exposure, air leakage, and your regional design temperature all influence the load. A professional Manual J calculation prevents the oversizing that causes short-cycling and clammy indoor air.
Ideal for: mid-size single-family homes wanting Rheem's highest-efficiency 20 SEER2 matched inverter system.
Need more capacity? Step up to the 4 Ton Rheem 19 SEER2 Inverter Heat Pump System. For smaller spaces, see the 2 Ton 20 SEER2 System.
Recommended applications are general guidelines only. Actual system requirements depend on insulation, ambient conditions, duct design, window load, and your local design temperatures. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condenser | RP19AY36AJVCA — 3 Ton Inverter Heat Pump Condenser |
|---|---|
| Indoor Air Handler | RHMVY3621MEACAJ — 3 Ton Modulating EcoNet Air Handler |
| System Efficiency | 20 SEER2 / 8.5 HSPF2 (AHRI Ref. 215576395) |
| Nominal Capacity | 3.0 Tons / 34,200 BTU |
| Refrigerant | R-454B (low-GWP A2L), factory-charged condenser |
| Outdoor Compressor | Inverter-driven variable-speed scroll (40–100%, 115% overdrive) |
| Indoor Blower | 1/2 HP truly variable-speed Constant CFM modulating ECM |
| Controls | EcoNet Enabled communicating system with PlusOne Bluetooth diagnostics |
| Refrigerant Detection | Factory-installed PlusOne A2L sensor in the air handler |
| Electrical | 208/230V, 1 Ph, 60 Hz (condenser MCA 20 / Max Breaker 35A; air handler on a separate circuit) |
| Warranty | 10-Year Parts & 10-Year Conditional Unit Replacement (registration required) |
This AHRI-certified matched system combines a factory-charged outdoor condenser with a fully communicating modulating air handler, both sized at 3 tons for a balanced, efficient whole-home installation.
System Components & Features
RP19AY36AJVCA Outdoor Heat Pump
- Endeavor Prestige efficiency — up to 20 SEER2
- Inverter variable-speed scroll compressor for long, steady cycles
- 8.5 HSPF2 heating with 115% overdrive capability
- Low-GWP R-454B refrigerant meeting 2025 EPA limits
- Swept Wing fan for quiet operation, as low as 60 dBA
- PlusOne refrigerant detection and Bluetooth diagnostics
RHMVY3621MEACAJ Indoor Air Handler
- Truly variable-speed Constant CFM modulating blower
- Factory-installed aluminum coil with Electronic Expansion Valve
- Rated ~1,000–1,600 CFM cooling airflow
- EcoNet Enabled with dip-switch-free Bluetooth commissioning
- Included PlusOne A2L refrigerant detection sensor
- 4-way convertible with less than 2% cabinet air leakage
Specifications & Manuals
Product documentation includes condenser and air handler technical specifications, installation information, product literature, and warranty details to assist with equipment selection, installation, and service.
Frequently Asked Questions
What components make up the 3 ton 20 SEER2 system?
It combines the RP19AY36AJVCA 3 ton inverter heat pump condenser with the RHMVY3621MEACAJ 3 ton modulating air handler, listed together under AHRI Reference Number 215576395.
How is the 3 ton system different from the 2 ton system?
Both use the same RHMVY3621MEACAJ air handler and reach 20 SEER2, but the 3 ton system uses the larger RP19AY36AJVCA condenser for 34,200 BTU of capacity, suiting mid-size homes rather than compact spaces.
What refrigerant does this system use and is it future-proof?
The system uses R-454B, a low-GWP A2L refrigerant with about 78% lower global warming potential than R-410A. It meets the EPA's 2025 GWP requirements for new heating and cooling equipment.
Do the condenser and air handler communicate with each other?
Yes. Both are EcoNet Enabled and communicate over the EcoNet platform, allowing coordinated variable-speed operation, automatic configuration, and system monitoring across the outdoor and indoor units.
What thermostat does this system need?
Full communicating, modulating operation is achieved with an EcoNet
RP19AY Technical Specifications
RP19AY Installation Instructions
RP19AY Brochure
RHMV Technical Specifications
Rheem Warranty Certificate




