1.5 Ton Rheem Select 15.2 SEER2 R454B Central System WA14AY18AJ1NA, RH2TY2417STANNJ
This is the entry size in Rheem's Endeavor® Line Select™ Series R-454B lineup. It pairs the WA14AY18AJ1NA single-stage condenser with the RH2TY2417STANNJ two-stage-airflow air handler, AHRI certified at 15.2 SEER2 (#215232474). It uses R-454B, a low-GWP refrigerant, and the air handler includes Rheem's PlusOne® Refrigerant Detection System™, which pauses the outdoor unit if excess refrigerant is detected. It's a strong fit for condo owners, landlords and homeowners replacing a small central air system who want a trusted Rheem name in a compact package. It's cooling only, with optional field-installed Rheem electric heat strips.
Is a 1.5 Ton Air Conditioning System the Right Size?
A 1.5 ton system delivers 18,000 BTU/h of nominal cooling. It's typically used in condos, apartments, small single-story homes and additions, often around 600–900 sq. ft. as a rough guide. What really decides it is the home's heat gain, not just its floor area.
Sun exposure on large windows, attic insulation depth, duct leakage and the number of occupants all affect that load. Undersizing leads to long, struggling run times on peak days, while oversizing short-cycles and leaves humidity behind. A Manual J load calculation is the reliable way to confirm 1.5 tons.
Ideal for: Condos, apartments, small single-story homes, bonus rooms and in-law suites with light cooling loads.
Need more capacity? Step up to the 2 Ton Rheem Select 15.2 SEER2 R454B Central System WA14AY24BJ1NA, RH2TY2417STANNJ, which uses the same air handler.
Recommended home sizes are general guidelines only. Actual system requirements depend on insulation, climate, windows, ductwork, occupancy and a proper load calculation. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condensing Unit | WA14AY18AJ1NA — 1.5 Ton Rheem Select R454B Air Conditioner |
|---|---|
| Indoor Air Handler | RH2TY2417STANNJ Two-Stage Airflow Multipoise Air Handler (17.5" Wide) |
| Application | Cooling-Only Central Air Split System (Electric Heat Kit Optional) |
| Refrigerant | R-454B (Low-GWP A2L Refrigerant) |
| Compressor | Single-Stage Scroll Compressor |
| Metering Device | Factory-Installed Expansion Valve on Indoor Coil (TXV) |
| Electrical | 208/230V, Single Phase, 60 Hz Condensing Unit — 12 MCA / 15A Max Overcurrent |
| Air Handler Electrical | 208/240V, Single Phase — 3 MCA / 15A Max Overcurrent (No Heat Kit) |
The WA14AY18AJ1NA condenser is the smallest cabinet in the WA14AY line at 29.54" x 29.54" x 25.17" and 141 lbs (operating). It uses a single-row 7 mm coil and a 20" fan, with a 70 dBA sound rating. The RH2TY2417STANNJ air handler is 17.5" wide and 42.5" tall, and it converts for upflow, downflow or horizontal installs. If you need an even smaller outdoor footprint, compare the 1.5 ton Rheem Select small-footprint system WSA14AY18AJ1NA.
Condensing Unit & Air Handler Features
WA14AY18AJ1NA Outdoor Condensing Unit
- 18,000 BTU/h nominal cooling capacity
- Single-stage scroll compressor
- 70 dBA weighted sound power rating
- Optimized 7 mm coil design for airflow and heat transfer
- Fully louvered steel cabinet protects internal components
- 64 oz. factory R-454B charge for 15 ft. of line set
- 3/8" liquid and 3/4" suction front-seating service valves
- Field-installed filter drier included
- Internal pressure relief valve and internal thermal overload
- 10-year conditional parts limited warranty (registration required)
RH2TY2417STANNJ Two-Stage Air Handler
- Two-stage airflow with a constant torque (ECM) motor
- 1/3 HP, 5-speed motor with 10" x 8" blower
- PlusOne® Refrigerant Detection System™ with integrated A2L sensor
- Aluminum fins bonded to internally grooved aluminum tubing
- 4-way convertible: upflow, downflow, horizontal left or right
- 1.0" foil-faced cabinet insulation for quieter operation
- Cabinet air leakage under 2% at 1" H₂O (ASHRAE 193)
- Slide-out blower for easy service
- Expansion valve on indoor coil for AC or heat pump use
- Field-installed heater kits with UL-listed circuit breakers
Specifications & Manuals
Documentation includes WA14AY electrical data, dimensions, clearances and line-size tables, RH2TY airflow and heater data, air handler installation instructions and the Rheem limited warranty.
Frequently Asked Questions
What is the PlusOne Refrigerant Detection System on this Rheem system?
It's Rheem's integrated one-box design with an A2L refrigerant sensor and mitigation board in the air handler. If excess R-454B is detected, it automatically pauses outdoor unit operation. It works with any 24V thermostat.
Why does a 1.5 ton Rheem system use a 2 ton air handler?
The RH2TY2417STANNJ is Rheem's 17.5" air handler for both 1.5 and 2 ton applications. Its five-speed constant torque motor is set up by the installer to deliver the correct airflow for the 1.5 ton WA14AY18AJ1NA.
How big is the WA14AY18AJ1NA condenser?
Rheem lists it at 25.17" tall with a 29.54" x 29.54" footprint and a 141 lb operating weight. That's the smallest cabinet in the WA14AY series.
Is there a smaller-footprint 1.5 ton Rheem option?
Yes. For tight side yards, see the 1.5 ton Rheem Select small-footprint central AC system WSA14AY18AJ1NA.
Does the WA14AY18AJ1NA come with a filter drier?
Yes. Rheem lists a field-installed filter drier as standard equipment. It ships with the unit and is installed in the liquid line during setup.
What electric heat can I add to the RH2TY2417STANNJ?
We offer 5, 8 and 10 kW RXBH heater kits for this system. Rheem's heater kits include circuit breakers that meet UL and cUL requirements for a service disconnect.
WA14AY Technical Specifications
