What is the SEER2 rating of the Ameristar E4HL5024A1000A?

The Ameristar E4HL5024A1000A is rated at up to 15.2 SEER2 and 9.0 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Ameristar E4HL5024A1000A good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 21,000 BTU/h at 5°F with a COP of 1.85, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the Ameristar E4HL5024A1000A cost to run per year?

At its rated efficiency it costs about $740-$1,822 a year in electricity in large U.S. cities, depending on climate and local rates - for example $890 in Phoenix and $1,506 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Which indoor units work with the Ameristar E4HL5024A1000A?

ENERGY STAR lists 10 certified combinations for this outdoor unit. The highest-rated ones use 4TXCB003DS3, A4AH5V24A1B3 + DF.

What refrigerant does the Ameristar E4HL5024A1000A 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.

2-ton central heat pump · E4HL5

Ameristar E4HL5024A1000A

Below average cooling and heating efficiency for a 2-ton central heat pump, and certified for cold climates.

Ranks #312 of 331 2 ton central heat pumps for cooling efficiency, and costs about $777 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 6%
HSPF2: 8.5 Heating efficiency over a season
Below average · beats 38%
EER2: 9.0 Cooling efficiency on a 95°F day
Below average · beats 4%
Heat at 5°F: 21,000 BTU/h88% of its 47°F output
Below average · beats 12%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 21,000 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 10 certified pairings.

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

Specifications2 ton, R-410A

General
Brand	Ameristar
Also sold as	RunTru, American Standard, Trane
Outdoor unit model	E4HL5024A1000A
Series	E4HL5
Type	Central heat pump
Nominal size	2 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	March 28, 2024
Last certified	April 22, 2026
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	9.0
Cooling capacity	24,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.1-8.5
Capacity at 47°F	24,000 BTU/h
Capacity at 17°F	18,000-20,000 BTU/h
Capacity at 5°F	17,000-21,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.80-1.85
ENERGY STAR cold climate	Yes

Heating output as it gets colder88% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 4TXCB003DS3 at the standard test temperatures, in BTU/h:

Certified matchups10 indoor units

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

Indoor unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
4TXCB003DS3 · cold climate	A801X060BM4SD	15.2	9.0	8.5	21,000	215402198
4TXCB003DS3 · cold climate	A801X060BM4SD	15.2	9.0	8.5	21,000	215402199
4TXCB003DS3 · cold climate	A952V060BU4SB	15.2	9.0	8.5	21,000	215402194
4TXCB003DS3 · cold climate	A952V060BU4SB	15.2	9.0	8.5	21,000	215402195
4TXCB003DS3 · cold climate	A952V040BU3SB	15.2	9.0	8.5	21,000	215402196
4TXCB003DS3 · cold climate	A952V040BU3SB	15.2	9.0	8.5	21,000	215402197
A4AH5V24A1B3 + DF · cold climate	-	15.2	9.0	8.1	17,000	214554783
A4AH5V24A1B3 + DF · cold climate	-	15.2	9.0	8.1	17,000	214554780
A4AH5V24A1B3 + DF · cold climate	-	15.2	9.0	8.1	17,000	214608348
A4AH5V24A1B3 + DF · cold climate	-	15.2	9.0	8.1	17,000	214608349

Yearly running cost in 10 large cities$740-$1,822

Phoenix, AZ$890/yr
Miami, FL$740/yr
Houston, TX$797/yr
Atlanta, GA$777/yr
Los Angeles, CA$750/yr
New York, NY$1,822/yr
Chicago, IL$1,472/yr
Denver, CO$1,219/yr
Seattle, WA$744/yr
Minneapolis, MN$1,506/yr

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

Questions5

What is the SEER2 rating of the Ameristar E4HL5024A1000A?: The Ameristar E4HL5024A1000A is rated at up to 15.2 SEER2 and 9.0 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Ameristar E4HL5024A1000A good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 21,000 BTU/h at 5°F with a COP of 1.85, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the Ameristar E4HL5024A1000A cost to run per year?: At its rated efficiency it costs about $740-$1,822 a year in electricity in large U.S. cities, depending on climate and local rates - for example $890 in Phoenix and $1,506 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the Ameristar E4HL5024A1000A?: ENERGY STAR lists 10 certified combinations for this outdoor unit. The highest-rated ones use 4TXCB003DS3, A4AH5V24A1B3 + DF.
What refrigerant does the Ameristar E4HL5024A1000A 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 $872/yrYou save $365/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 Ameristar E4HL5024A1000A

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: $872
Current system, per year: $1,238
You save per year: $365
Payback: 24.6 years
Net after 10 years: -$5,345

Cooling $556Heating $316Electricity used: 5,450 kWhSaved vs. a minimum-efficiency heat pump: $77

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.

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Midea MDV-V24WMN10T-H · cold climate15.3 SEER2 · 8.5 HSPF2
Mainline MPP15AZ24AJ2N · cold climate15.2 SEER2 · 8.1 HSPF2
MDV MOX430U-22HFN1-MR0 · cold climate15.4 SEER2 · 9.2 HSPF2
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See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of April 22, 2026. How we use the data.