What is the SEER2 rating of the Friedrich FWP15AZ48AJ2N?

The Friedrich FWP15AZ48AJ2N is rated at up to 15.2 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Friedrich FWP15AZ48AJ2N good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 24,200 BTU/h at 5°F with a COP of 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.

How much does the Friedrich FWP15AZ48AJ2N cost to run per year?

At its rated efficiency it costs about $1,404-$3,558 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,703 in Phoenix and $2,951 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Friedrich FWP15AZ48AJ2N the same as the DuraSTAR DRHP15A48AJ2AN?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the Friedrich FWP15AZ48AJ2N?

ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use FRH2TZ4821STANN, FRH3VZ4821STACN.

What refrigerant does the Friedrich FWP15AZ48AJ2N use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

4-ton central heat pump · F-SERIES PLUS

Friedrich FWP15AZ48AJ2N

Below average cooling and heating efficiency for a 4-ton central heat pump, and certified for cold climates.

Ranks #307 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,507 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 6%
HSPF2: 8.1 Heating efficiency over a season
Below average · beats 20%
EER2: 11.7 Cooling efficiency on a 95°F day
Average · beats 43%
Heat at 5°F: 24,200 BTU/h54% of its 47°F output
Very good · beats 76%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 24,200 BTU/h at 5°F.

Think twice if…

Cooling cost matters most - its SEER2 is below average for central heat pumps.
You mainly need heat - its HSPF2 is below average for central heat pumps.
You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications4 ton, R-410A

General
Brand	Friedrich
Also sold as	DuraSTAR
Outdoor unit model	FWP15AZ48AJ2N
Series	F-SERIES PLUS
Type	Central heat pump
Nominal size	4 ton
CompressorVariable-speed units run longer at low power	Two-stage
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	April 13, 2023
Last certified	June 3, 2026
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	11.7
Cooling capacity	45,500 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.1
Capacity at 47°F	45,000 BTU/h
Capacity at 17°F	30,200 BTU/h
Capacity at 5°F	24,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.20
ENERGY STAR cold climate	Yes

Heating output as it gets colder54% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FRH2TZ4821STANN at the standard test temperatures, in BTU/h:

Certified matchups2 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
FRH2TZ4821STANN · cold climate	15.2	11.7	8.1	24,200	213087928
FRH3VZ4821STACN	15.2	11.7	8.1	24,200	214664617

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Friedrich FWP15AZ48AJ2N: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

DuraSTAR DRHP15A48AJ2AN

Yearly running cost in 10 large cities$1,404-$3,558

Phoenix, AZ$1,703/yr
Miami, FL$1,404/yr
Houston, TX$1,526/yr
Atlanta, GA$1,507/yr
Los Angeles, CA$1,459/yr
New York, NY$3,558/yr
Chicago, IL$2,880/yr
Denver, CO$2,387/yr
Seattle, WA$1,461/yr
Minneapolis, MN$2,951/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions6

What is the SEER2 rating of the Friedrich FWP15AZ48AJ2N?: The Friedrich FWP15AZ48AJ2N is rated at up to 15.2 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Friedrich FWP15AZ48AJ2N good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 24,200 BTU/h at 5°F with a COP of 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.
How much does the Friedrich FWP15AZ48AJ2N cost to run per year?: At its rated efficiency it costs about $1,404-$3,558 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,703 in Phoenix and $2,951 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Friedrich FWP15AZ48AJ2N the same as the DuraSTAR DRHP15A48AJ2AN?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the Friedrich FWP15AZ48AJ2N?: ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use FRH2TZ4821STANN, FRH3VZ4821STACN.
What refrigerant does the Friedrich FWP15AZ48AJ2N use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,676/yrYou save $662/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Friedrich FWP15AZ48AJ2N

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,676
Current system, per year: $2,338
You save per year: $662
Payback: 25.7 years
Net after 10 years: -$10,380

Cooling $1,054Heating $622Electricity used: 10,474 kWhSaved vs. a minimum-efficiency heat pump: $116

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

Similar 4 ton models

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AC Pro BH714S48P-**A15.2 SEER2 · 8.1 HSPF2
Rheem WP15AZ48AJ2N · cold climate15.2 SEER2 · 8.1 HSPF2
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Samsung AC048FCUDCG · cold climate15.2 SEER2 · 8.1 HSPF2
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See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 3, 2026. How we use the data.