RP15AY48AJ2N

Rheem and Ruud · central heat pump

All 91 certified Rheem models · All 89 certified Ruud models

RP15AY48AJ2N is in the certified data as of Sep 19, 2026.

48,000 Btu (4-ton)
Central
Two-stage
US and Canada

Heating at 47°F

45,500

29,600 at 17°F

23,000 at 5°F

Btu/h, certified

2.20 COP at 5°F

Cooling at 95°F

45,500

Btu/h, certified

EER2 11.7 at 95°F

SEER2 15.2

Heating and cooling by outdoor temperature

Heating output
Cooling output
Median of 4-ton central models
Example heating load
Example cooling load
Frosting range, 17 to 45°F

This pairing delivers 45,500 Btu/h of heat at 47°F, 29,600 Btu/h at 17°F, and 23,000 Btu/h at 5°F, 51% of its 47°F rating. It delivers 45,500 Btu/h of cooling at 95°F. At 5°F that is 13,500 Btu/h short of the example heating load of 36,500 Btu/h; at 95°F it is 27,500 Btu/h above the example cooling load of 18,000 Btu/h.

Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at high stage; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 4-ton central models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.

The dashed lines are example loads for a typical area of about 1,500 sq ft where winters reach 5°F: heating runs from 36,500 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 18,000 Btu/h at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.

Calculate heating and cooling for your house

AHRI certificate 216581274 · listed by Rheem · certified Apr 9, 2025 · 2 pairings share these values

Certified output and power use

Certified output for the selected pairingThe four bars share one scale. The comparison is with the median of 4-ton central models. Heating tests run at 70°F indoors. The cooling test runs at 80°F indoors.
Outdoor temperature	Certified outputBtu/h	vs class median	COPat 5°F
5°Fone compressor speed	23,0006.74 kW	−37%	2.20
17°Fone compressor speed	29,6008.67 kW	−15%	NR
47°Fone compressor speed	45,50013.33 kW	−5%	NR
95°Fcooling, full load	45,50013.33 kW	—	NR

EER2 11.7 in that test. SEER2 15.2 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test: 3.06kW
Electrical input in the 95°F cooling test: 3.89kW
Seasonal average heating COP: 2.37

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 48,000 Btu heat pumps

4-ton central models

This pairing at 5°F: 23,000 Btu/h
This unit at 5°F median across its pairings: 23,000 Btu/h
Median of 4-ton central models at 5°F: 36,400 Btu/h
Models in this group: 408

This unit is above 7% of them, at number 378 of 408 by heat at 5°F. The middle half of the group runs 25,350 to 46,000 Btu/h.

This size class is defined by cooling capacity, so cooling is not compared here.

Among 48,000 Btu central models, each by its median certified pairing, highest first: 5°F output as a share of its 47°F rating, 348th of 408 (tied); HSPF2, 297th of 420 (tied). Models without that figure are left out.

Similar ratings at 47°F

These central models share the nominal cooling size. Comparisons use each model’s median certified figures across pairings.

FOP1948MJAYCA: The same 45,500 Btu/h rating at 47°F; 42,000 Btu/h at 5°F (this model: 23,000).
5TWV8X48A1: The same 45,500 Btu/h rating at 47°F; 35,000 Btu/h at 5°F (this model: 23,000).
RHPXYC048AJT: The same 45,500 Btu/h rating at 47°F; 18,000 Btu/h at 5°F (this model: 23,000).

Closest models by heat at 5°F

Every 48,000 Btu (4-ton) unit, ranked by cooling efficiency, then heating efficiency

Floor area at the cold test point

The median certified output of 23,000 Btu/h at 5°F matches the size calculator’s heating estimate for these floor areas, rounded to about 10 sq ft. Each range divides that output by the climate band’s heating rates.

Floor area by climate band and house condition
Climate band	House condition	Btu/h per sq ft	Approximate sq ft
Mild	Drafty, little insulation	24–42	550–960
Mild	Typical	16–26	880–1,440
Mild	Tight, well insulated	10–18	1,280–2,300
Cold	Drafty, little insulation	28–52	440–820
Cold	Typical	18–30	770–1,280
Cold	Tight, well insulated	12–22	1,050–1,920
Very cold	Drafty, little insulation	32–58	400–720
Very cold	Typical	22–38	610–1,050
Very cold	Tight, well insulated	16–28	820–1,440

This is an estimate, not a house-specific load calculation. Output stays at the 5°F test point for every band; it does not predict output at the band’s winter design temperature.

Certified values for RP15AY48AJ2N

6 pairings · 6 AHRI certificates

This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.

Certified values for RP15AY48AJ2N
Heating
	This pairing	All pairings
Heat output at 47°F high stage	45,500 Btu/h	45,500 Btu/h
Heat output at 17°F full speed	29,600 Btu/h	29,600–30,000 Btu/h
Heat output at 5°F full speed	23,000 Btu/h	23,000–23,400 Btu/h
Heat output below 5°F	NR	NR
Cold output 5°F output as a % of the 47°F rating	51%	51% of its 47°F rating. Tests use different compressor speeds.
COP at 5°F full speed	2.20	2.20
HSPF2 Region IV	8.1	7.8–8.1
Cooling
Cooling capacity at 95°F full-load test	45,500 Btu/h	45,500 Btu/h
EER2 at 95°F	11.7	11.7
SEER2 cooling season	15.2	15.2–16.0
Cooling at other temperatures	NR	NR
Equipment and listing
Refrigerant	R-454B
Compressor	Two-stage
Indoor unit	RH2TY4824STANN	3 indoor units
Furnace	No furnace	None
Cold-climate designation EPA's designation, as published	Yes	On some pairings
ENERGY STAR Most Efficient EPA's designation, as published	No	On no pairings
Where it is sold	US and Canada	US and Canada
Model string as certified	RP15AY48AJ2N

Across 6 certified pairings with 3 indoor models: heat at 5°F 23,000 Btu/h with RH2TY4824STANN to 23,400 Btu/h with RH2VY4824STACN; HSPF2 7.8 with RH2TY4821STANN to 8.1 with RH2TY4824STANN; SEER2 15.2 with RH2TY4821STANN to 16.0 with RH2VY4824STACN. Endpoints name one indoor model where recorded; the furnace pairing can also change the figures.

Pairings, by indoor-unit class

3 indoor units · 6 certified pairings

One row per indoor unit certified with this outdoor unit.

Air handler · 3 indoor units

RH2TY4821STANN brand not stated NRat 5°F, full speed

2 pairings · 47°F 45,500 Btu/h · 95°F cooling 45,500 Btu/h · Cold output NR · COP —
RH2TY4824STANN (the pairing on screen) brand not stated 23,000 Btu/hat 5°F, full speed

2 pairings · 47°F 45,500 Btu/h · 95°F cooling 45,500 Btu/h · Cold output 51% · COP 2.20
RH2VY4824STACN brand not stated 23,400 Btu/hat 5°F, full speed

2 pairings · 47°F 45,500 Btu/h · 95°F cooling 45,500 Btu/h · Cold output 51% · COP 2.20

Indoor units in the air handler class
Indoor unit	Brand	At 5°FBtu/h · full speed	At 47°FBtu/h · high stage	At 95°FBtu/h · cooling	Cold output% of 47°F rating	COP 5°Ffull speed	Cold climate	Pairings
RH2TY4821STANN	—	NR	45,500	45,500	NR	—	NC	2
RH2TY4824STANN (the pairing on screen)	—	23,000	45,500	45,500	51%	2.20	Yes	2
RH2VY4824STACN	—	23,400	45,500	45,500	51%	2.20	Yes	2

The share is heat output at 5°F divided by the 47°F rating.

Showing 3 of 3 indoor units

Sold as, and units with identical certified values

Brands listing this model number

Other brands that list these model numbers

Are Rheem and Ruud heat pumps the same?85 shared model numbers

Model number as listed

RP15AY48AJ2N 6 pairings

Variants of the same model number

2 units in this group. Basis: identical certified values in the certified data. This grouping is our inference, not a field in the certified data.

WP15AY48AJ2NFujitsu · Rheem · Ruud · WeatherKing

1 of 2 shown.

What affects the price

We don't have prices. These things drive the cost.

The size of the unit, and the indoor equipment on the same certificate.
Whether existing ductwork is reused, altered, or replaced.
The electrical work: a circuit, a disconnect, and sometimes a panel change.
Refrigerant line length and how the outdoor unit is mounted.
Permits and inspection, which vary by municipality.
Removing and disposing of the old equipment.
Local labor rates and how busy the season is.
Rebates and tax credits, which change and have deadlines.

History and definitions

Other CLASSIC PLUS models by nominal cooling size: RP15AY18AJ2N (18,000 Btu), RP15AZ18AJ2N (18,000 Btu), WP15AZ18AJ2N (18,000 Btu), RD16AY24AJVC (24,000 Btu), RP15AZ24AJ2N (24,000 Btu), WP15AZ24AJ2N (24,000 Btu), RD16AY36AJVC (30,000 Btu), RP15AZ30AJ2N (30,000 Btu); more models from this brand.

Other Classic Plus models by nominal cooling size: RO2HFZ18AJ1H (18,000 Btu), RP15AZ18AJ2N (18,000 Btu), RD16AY24AJVC (24,000 Btu), RO3HFZ24AJ1H (24,000 Btu), RP15AZ24AJ2N (24,000 Btu), RP17AY24AJVC (24,000 Btu), RP15AZ30AJ2N (30,000 Btu), RP15AZ36AJ2N (36,000 Btu); more models from this brand.

Other CLASSIC SERIES models by nominal cooling size: RP15AY18AJ2N (18,000 Btu), RP15AZ18AJ2N (18,000 Btu), RP15AZ24AJ2N (24,000 Btu), RP15AZ30AJ2N (30,000 Btu), RP14AZ36AJ2N (36,000 Btu), RP15AZ36AJ2N (36,000 Btu), RP14AY48AJ2N (48,000 Btu), RP14AY60AJ2N (54,000 Btu); more models from this brand.

History

First certified record: Aug 28, 2024
Most recent certified record: Apr 9, 2025
Measurements reported: Apr 9, 2025
Status: In the certified data

Field definitions

COP: Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
HSPF2: Heating efficiency over a typical season. Higher uses less electricity.
SEER2: Cooling efficiency over a typical season. Higher uses less electricity.
EER2: Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
Cold output: Heat output at 5°F as a percentage of the 47°F rating.
% of rating at 17°F: Heat output at 17°F as a percentage of the 47°F rating.

NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read

Cite or print this page

Heat Pump List, “RP15AY48AJ2N — certified heat output”. Certified figures dated Sep 19, 2026, checked daily.
https://heatpumplist.com/model/wp15ay48aj2n