2 Ton Rheem 14.3 SEER2 R-454B Two Stage Heat Pump System RP14AY24AJ2NA, RH2TY2417STANNJ
Two-stage operation starts here. The RP14AY24AJ2NA outdoor heat pump and RH2TY2417STANNJ air handler form a 24,000 BTU R-454B split system that runs on low stage the vast majority of the year and only steps to high stage on design days. Longer, gentler run cycles mean tighter temperature control, quieter operation and noticeably better humidity removal than a single-stage unit of the same capacity, which is why this is the most-requested size for smaller Florida homes and townhouses.
Is a 2 Ton Heat Pump System the Right Size?
At 24,000 BTU per hour, a 2 ton heat pump generally serves 900 to 1,200 square feet of conditioned area. Two-bedroom townhouses, small ranch homes, coastal cottages and well-insulated slab houses commonly land in this range. The load calculation, not the floor plan, determines whether 2 tons is correct.
Duct leakage, attic R-value, single versus double pane glass, shading, and the direction the largest windows face can swing the calculated load by half a ton in either direction. With a two-stage compressor there is also less penalty for being slightly generous on capacity, because low stage runs at roughly two-thirds output and keeps cycle lengths long, but a system that is a full ton oversized will still leave the house cool and damp.
Ideal for: Two-bedroom townhomes, small single-story homes, beach cottages, duplex units and finished basements in the 900 to 1,200 square foot range.
Need more capacity? Step up to the 2.5 Ton Rheem RP14AY30AJ2NA, RH2TY3617STANNJ Heat Pump System, which adds 6,000 BTU and a larger indoor coil while keeping the same 17.5 in. cabinet width.
Recommended capacity ranges are general guidelines only. Actual system requirements depend on insulation, window area, duct design, air infiltration, and local climate. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Heat Pump | RP14AY24AJ2NA — 2 Ton / 24,000 BTU Two-Stage Heat Pump |
|---|---|
| Indoor Air Handler | RH2TY2417STANNJ — 17.5 in. Wide Multiposition Air Handler |
| Application | Residential Split System Heat Pump, Heating and Cooling |
| Refrigerant | R-454B Low GWP (A2L) |
| Compressor | Two-Stage Scroll |
| Rated Efficiency | 14.3 SEER2 / 9.0 EER2 / 7.5 HSPF2 (Region IV) |
| AHRI Reference | 214568762 |
| Condenser Electrical | 208/230V, Single Phase, 60 Hz — 16 MCA / 25 A Max Fuse or Breaker |
| Air Handler Electrical | 208/240V, Single Phase, 60 Hz |
| Line Set Connections | 3/8 in. Liquid, 3/4 in. Vapor |
This is a matched AHRI-certified pair, not a mix-and-match assembly. The two-stage compressor in the RP14AY24AJ2NA talks to the constant-torque blower in the RH2TY2417STANNJ so airflow drops with capacity on low stage. Finish the installation with a weatherproof electrical whip and 60 amp pull-out disconnect at the outdoor unit.
Condenser & Air Handler Features
RP14AY24AJ2NA Outdoor Heat Pump
- Two-stage scroll compressor with high and low speeds for precise temperature control
- Low stage operation lowers indoor humidity compared with single-stage compressors of equal capacity
- Inverted reversing valve shifts with gravity assist for faster, lower-stress heat mode changeover
- PlusOne Expanded Valve Space with 3 in. to 5 in. of service valve clearance
- PlusOne Triple Service Access: 15 in. corner opening plus individual louver panels
- Integrated PlusOne Refrigerant Detection System on a single sensor and mitigation board
- Simplified wiring and commissioning versus multi-component A2L detection designs
- Works with any standard 24V thermostat, including two-stage heat pump controls
- R-454B refrigerant carries a 78 percent lower GWP than previous generation refrigerants
- 16 amp minimum circuit ampacity on 208/230V single phase power
RH2TY2417STANNJ Air Handler
- Matched 17.5 in. cabinet keeps the footprint identical to the 1.5 ton system for closet retrofits
- Constant-torque ECM motor holds airflow steady as filters load and duct static rises
- Two-stage airflow tracks the compressor's high and low stages
- Upflow, downflow, horizontal left and horizontal right conversion in the field
- All-aluminum A-coil with internally grooved tubing resists coastal corrosion
- 1.0 in. foil-faced insulation keeps blower noise out of adjacent living space
- Tested to less than 2 percent cabinet air leakage at 1 in. H2O per ASHRAE Standard 193
- Heavy-gauge steel cabinet supports horizontal attic mounting on a platform or hangers
- Field-installed RXBH heat kits include UL and cUL listed breakers for service disconnect
- Factory-installed A2L sensor pauses the outdoor unit if refrigerant is detected indoors
Specifications & Manuals
Complete literature for both halves of this package is provided here: rating and performance tables, submittal sheets for permit and bid packages, full installation instructions for the outdoor unit and air handler, product brochure, and Rheem warranty terms. Submittal sheets are the fastest reference for dimensions, clearances and electrical data.
Frequently Asked Questions
How much cooling does the RP14AY24AJ2NA actually deliver?
It is a nominal 2 ton unit, or 24,000 BTU per hour at rating conditions. Delivered capacity varies with outdoor temperature, indoor airflow and refrigerant charge, and it drops on low stage by design.
What does the two-stage compressor change versus the 1.5 ton model?
The 1.5 ton RP14AY18AJ1NA runs at one fixed output. This 2 ton unit adds a low stage that handles mild weather with longer, quieter cycles and more moisture removal, then shifts to high stage only when the load demands it.
Does the 2 ton use the same air handler cabinet as the 1.5 ton system?
Yes. Both use the RH2TY2417STANNJ, so a closet, platform or attic stand built for one will accept the other. That makes the 2 ton an easy capacity upgrade when a load calculation shows the smaller system falls short.
What line set size does this match require?
3/8 in. liquid and 3/4 in. vapor. A 50 ft. 3/4 in. x 3/8 in. copper line set covers most residential runs; longer runs require a line length correction from the RP14AY technical specifications.
Does A2L refrigerant change the installation requirements?
Yes. R-454B is mildly flammable, so installers need current A2L training, A2L-rated recovery and gauge equipment, and must follow local code for charge limits and indoor installation. The installation instructions linked above cover the specific requirements, and the built-in refrigerant detection system handles the mitigation side automatically.
Which thermostats work with this two-stage heat pump?
Any 24V heat pump thermostat with two-stage compressor and auxiliary heat terminals will operate it. A Honeywell T6 Pro programmable thermostat is a common pairing; smart models such as the ecobee 3H/2C smart Wi-Fi thermostat also support heat pump staging.
RP14AY Technical SpecificationsRP14AY BrochureRP14AY Installation InstructionsRP14AY Submittal SheetRH2TY Technical SpecificationsRH2TY Installation InstructionsRH2TY Submittal SheetRheem Warranty Certificate
