1.5 Ton Rheem 14.3 SEER2 R454B Single Stage Central System RA14AY18AJ1NA, RH1AY2417STANNJ
This Rheem Endeavor® Line Classic® system pairs the RA14AY18AJ1NA condenser with the RH1AY2417STANNJ single-stage-airflow air handler, AHRI certified at 14.3 SEER2 (#217232166). It's a value-focused way to get Rheem's Classic cabinet, low-GWP R-454B refrigerant and PlusOne® Refrigerant Detection System™ into a small home or condo. The RH1AY keeps things simple, with one airflow stage and a constant torque (ECM) motor. 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 suits condos, apartments, small single-story homes and additions, roughly 600–900 sq. ft. as a loose reference. The home's heat gain is what actually decides the size.
Large windows, thin attic insulation and leaky ducts can push a small home past 1.5 tons, while a tight, shaded home may need less. A Manual J load calculation avoids short cycling from oversizing and long, struggling run times from undersizing.
Ideal for: Condos, apartments, rentals and small single-story homes on a budget.
Need more capacity? Step up to the 2 Ton Rheem 14.3 SEER2 R454B Single Stage Central System RA14AY24BJ1NA, RH1AY2417STANNJ, 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 | RA14AY18AJ1NA — 1.5 Ton Rheem Classic R454B Air Conditioner |
|---|---|
| Indoor Air Handler | RH1AY2417STANNJ Single-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 RA14AY18AJ1NA condenser is 25" tall on a 29.75" x 29.75" base and weighs 141 lbs (operating), with a 20" two-blade fan and a 70 dBA sound rating. The RH1AY2417STANNJ air handler is 17.5" wide and 42.5" tall and weighs 92 lbs, with a 1/3 HP motor. Complete the install with compatible thermostats and copper line sets and fittings.
Condensing Unit & Air Handler Features
RA14AY18AJ1NA Outdoor Condensing Unit
- 18,000 BTU/h nominal cooling capacity
- Single-stage scroll compressor
- 70 dBA weighted sound power rating
- 7 mm copper tube condenser coil uses less refrigerant
- 97 oz. factory R-454B charge for 15 ft. of line set
- 20" two-blade fan with 1/7 HP motor
- 3/8" liquid and 3/4" suction front-seating service valves
- PlusOne® Expanded Valve Space and Triple Service Access
- Composite base pan, powder-coated paint and rust-resistant screws
- 10-year conditional parts limited warranty (registration required)
RH1AY2417STANNJ Single-Stage Air Handler
- Single-stage airflow with a constant torque (ECM) motor
- 1/3 HP multi-speed motor, 600/800 CFM nominal airflow
- PlusOne® Refrigerant Detection System™ with factory-installed 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 and factory leak-tested coil
- Expansion valve on indoor coil for AC or heat pump use
- Field-installed heater kits in 5, 8 and 10 kW with UL/cUL-listed breakers
Specifications & Manuals
Documentation includes RA14AY electrical, sound, dimensional and line-size data, condenser and air handler installation instructions, the RA14AY brochure, RH1AY airflow and heater tables and the Rheem limited warranty.
Frequently Asked Questions
What's the difference between the RH1AY2417STANNJ and RH2TY2417STANNJ?
Both share the same 17.5" x 42.5" cabinet. The RH1AY runs one airflow stage, while the RH2TY offers two-stage airflow and a higher SEER2 match. Compare the 1.5 ton RA14AY18AJ1NA, RH2TY2417STANNJ system.
Does the RH1AY2417STANNJ come with the A2L refrigerant sensor installed?
Yes. RH1AY models without an "L" at the end of the model number have the PlusOne® A2L sensor factory installed. "L" versions ship less the sensor.
Is the RA14AY18AJ1NA the smallest RA14AY cabinet?
Yes. The 1.5 ton sits on a 29.75" x 29.75" base, while the 2 through 4 ton RA14AY models use a 33.75" x 33.75" base.
What kind of blower motor does the RH1AY2417STANNJ use?
Rheem lists a 1/3 HP constant torque (ECM) motor with multiple speed taps. Nominal airflow is 600 CFM low and 800 CFM high, and the installer selects the tap for the 1.5 ton match.
Can the RH1AY2417STANNJ be installed downflow on a wood floor?
Yes, it's 4-way convertible. For downflow on a combustible floor, Rheem requires the RXHB-17 combustible floor base accessory.
Which RXBH heat strip sizes are offered for this 1.5 ton single-stage system?
We offer 5 kW, 8 kW and 10 kW RXBH-1724 heat strips for this package. Rheem's heater kits include breakers that meet UL and cUL disconnect requirements.
RA14AY Technical SpecificationsRA14AY Installation InstructionsRA14AY BrochureRH1AY Technical SpecificationsRH1AY Installation InstructionsRheem Warranty Certificate
