1.5 Ton Rheem Select 15.2 SEER2 R454B Small Footprint Central AC System WSA14AY18AJ1NA, RH2TY2417STANNJ
This Rheem Endeavor® Line Select™ Series iC system is built for tight side yards, narrow setbacks and small pads. The WSA14AY18AJ1NA condenser sits on a 23.63" x 23.63" base, about 6" narrower each way than the standard WA14AY18. It's matched with the RH2TY2417STANNJ two-stage-airflow air handler and AHRI certified at 15.2 SEER2 (#216768575). It runs on low-GWP R-454B, and the air handler's PlusOne® Refrigerant Detection System™ pauses the outdoor unit if a leak is detected. It's cooling only, with optional 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 a common fit for condos, apartments, townhomes and small single-story homes, roughly 600–900 sq. ft. as a loose reference. The real deciding factor is the home's heat gain.
Sun-facing windows, insulation levels, duct leakage and occupancy all change the load. Oversizing a small system leads to short cycling and sticky humidity, while undersizing leaves rooms warm on peak days. A Manual J load calculation is the reliable way to confirm 1.5 tons.
Ideal for: Townhomes, condos, zero-lot-line homes and small houses where outdoor pad space is limited.
Need more capacity? Step up to the 2 Ton Rheem Select 15.2 SEER2 R454B Small Footprint Central AC System WSA14AY24AJ1NA, RH2TY2417STANNJ, which uses the same compact cabinet.
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 | WSA14AY18AJ1NA — 1.5 Ton Rheem Select Small Footprint 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 WSA14AY18AJ1NA condenser measures 32.25" tall on a 23.63" x 23.63" base and weighs 162 lbs (operating). It uses an 18" three-blade fan with a 1/7 HP motor and has a 76 dBA sound rating. The RH2TY2417STANNJ air handler is 17.5" wide and 42.5" tall, with a 1/3 HP motor and 10" x 8" blower. Complete the install with compatible thermostats and copper line sets and fittings.
Condensing Unit & Air Handler Features
WSA14AY18AJ1NA Outdoor Condensing Unit
- 18,000 BTU/h nominal cooling capacity
- Single-stage scroll compressor
- 76 dBA weighted sound power rating
- Optimized 2-row 7 mm coil uses up to 15% less refrigerant
- 103 oz. factory R-454B charge for 15 ft. of line set
- 18" three-blade fan with 1/7 HP motor (2,036 CFM)
- 3/8" liquid and 3/4" suction front-seating service valves
- External gauge ports, rust-resistant screws and field-installed filter drier
- One-piece drawn and painted base pan lifts the coil off the pad
- 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)
- Works with any standard 24V thermostat
- Expansion valve on indoor coil for AC or heat pump use
- Field-installed 5, 8 and 10 kW heater kits with UL/cUL-listed breakers
Specifications & Manuals
Documentation includes WSA14AY electrical, sound, dimensional and line-size data, condenser and air handler installation instructions, submittals, the Rheem Select brochure, RH2TY airflow and heater tables and the Rheem limited warranty.
Frequently Asked Questions
How much smaller is the WSA14AY18 than the standard WA14AY18 condenser?
The WSA14AY18AJ1NA sits on a 23.63" x 23.63" base, compared with 29.54" x 29.54" for the WA14AY18AJ1NA. It's taller at 32.25", so it trades height for a smaller pad. Compare the standard 1.5 ton Rheem Select WA14AY18AJ1NA system.
Can I use a 3/4" suction line on the 1.5 ton WSA14AY18?
Yes, but Rheem says a 3/4" suction line should only be used on 1.5 ton systems when the outdoor unit is below or level with the indoor unit, to ensure proper oil return. Otherwise, use a 5/8" suction line.
What is the maximum line length for the WSA14AY series?
Rheem's line-size tables say not to exceed 200 ft. of linear line length, and no more than 100 ft. of vertical separation when the outdoor unit is above the indoor unit.
Does the WSA14AY18AJ1NA have external gauge ports?
Yes. Rheem lists external gauge ports as standard equipment, along with rust-resistant screws, a QR code for product information and a field-installed filter drier.
Is there a version of this system with a single-stage-airflow air handler?
Yes. The 1.5 ton Rheem Select WSA14AY18AJ1NA, RH1AY2417STANNJ system pairs the same compact condenser with a single-stage-airflow RH1AY air handler.
How much R-454B is factory charged in the WSA14AY18AJ1NA?
Rheem lists a 103 oz. factory R-454B charge, enough for 15 ft. of line set. Longer runs need added refrigerant per the installation instructions.
WSA14AY Technical Specifications
WSA14AY Installation Instructions
WSA14AY Submittal
WSA14AY Warranty Card
WSA14AY Rheem Select Brochure
RH2TY Technical Specifications
RH2TY Installation Instructions
