What is the SEER2 rating of the American Standard 4A6V0X36A1?

The American Standard 4A6V0X36A1 is rated at up to 20.5 SEER2 and 12.7 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 212 certified matchups SEER2 ranges from 17.5-20.5.

Is the American Standard 4A6V0X36A1 good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 22,400 BTU/h at 5°F with a COP of 1.92, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the American Standard 4A6V0X36A1 cost to run per year?

At its rated efficiency it costs about $791-$2,259 a year in electricity in large U.S. cities, depending on climate and local rates - for example $995 in Phoenix and $1,902 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 American Standard 4A6V0X36A1?

ENERGY STAR lists 212 certified combinations for this outdoor unit. The highest-rated ones use 4PX*CU48BS3, TEM8A0C42V41+TDR, TEM8A0C36V31+TDR.

What refrigerant does the American Standard 4A6V0X36A1 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.

3-ton central heat pump · PLATINUM 20

American Standard 4A6V0X36A1

Excellent cooling efficiency and average heating efficiency for a 3-ton central heat pump, and certified for cold climates.

Ranks #19 of 302 3 ton central heat pumps for cooling efficiency, and costs about $931 a year to run in a mixed climate like Atlanta.

SEER2: 20.5 Cooling efficiency over a season
Excellent · beats 96%
HSPF2: 8.7 Heating efficiency over a season
Average · beats 47%
EER2: 12.7 Cooling efficiency on a 95°F day
Very good · beats 84%
Heat at 5°F: 22,400 BTU/h63% of its 47°F output
Below average · beats 25%

A good fit if…

You want low cooling bills - its SEER2 beats 96% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 22,400 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 212 certified pairings.

Think twice if…

You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications3 ton, R-410A

General
Brand	American Standard
Outdoor unit model	4A6V0X36A1
Series	PLATINUM 20
Type	Central heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	January 1, 2023
Last certified	September 24, 2025
Cooling
SEER2Seasonal efficiency, higher is better	20.5 (range 17.5-20.5)
EER2Efficiency at 95°F outdoors	11.2-12.7
Cooling capacity	32,000-36,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.0-8.7
Capacity at 47°F	29,800-35,400 BTU/h
Capacity at 17°F	24,400-29,000 BTU/h
Capacity at 5°F	19,000-22,400 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.60-1.92
ENERGY STAR cold climate	Yes

Heating output as it gets colder63% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 4PX*CU48BS3 at the standard test temperatures, in BTU/h:

Certified matchups212 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 212 are shown. 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.
4PX*CU48BS3	*UD2C100ACV5	20.5	12.7	8.7	20,400	207590662
4PX*CU48BS3	S8V2C100M5PDA	20.5	12.5	8.7	20,400	211081411
4PX*CU48BS3	*UD2C080ACV4	20.5	12.7	8.7	20,200	207590661
4PX*CU48BS3	S9V2C100U4VSA+RP	20.5	12.7	8.7	20,200	207590136
TEM8A0C42V41+TDR	-	20.5	12.5	8.7	20,200	207590054
TEM8A0C36V31+TDR	-	20.5	12.5	8.7	20,200	207590053
4PX*CU48BS3	S8V2C100M5PCA	20.5	12.5	8.7	20,400	210692050
4PX*CU42BS3	*UD2C080ACV4	20.5	12.7	8.7	20,200	211597751
4PX*CU42BS3	S9V2C100U4VSA+RP	20.5	12.7	8.7	20,200	210653002
4PX*CU48BS3	S8V2C100M5PDB	20.5	12.5	8.7	20,400	214253024
4PX*CU48BS3	S8V2C100M5PCB	20.5	12.5	8.7	20,400	214253026
4PX*CU48BS3	S9V2C080U5PSC+RP	20.5	12.7	8.7	21,800	214639468
4TXCC009DS3	*UD2C080ACV4	20.5	12.7	8.7	21,400	214655474
4PX*CD42BS3	S9V2C100D4VSA+RP	20.5	12.7	8.2	20,000	210652999
4PX*CD42BS3+HORIZ-RT	*UD2C100ACV5	20.5	12.7	8.2	20,400	211289071
4PX*BD42BS3	*DD2B060ACV3	20.5	12.5	8.2	20,600	211597741
4PX*CD42BS3+HORIZ-RT	*UD2C080ACV4	20.5	12.7	8.2	20,000	211597750
4PX*BD42BS3	S9V2B080D4VSA+RP	20.5	12.5	8.1	20,200	210173714
4PX*BD42BS3	S9V2B060D3PSB+RP	20.5	12.5	8.1	20,000	207590244
4PX*BD42BS3	S9V2B080D4PSB+RP	20.5	12.5	8.1	20,200	207590246
4PX*CD42BS3	*DD2C100ACV5	20.5	12.7	8.1	20,200	207590253
4PX*BD42BS3	S9V2B040D3PSB+RP	20.5	12.5	8.1	20,200	207590242
4PX*BD42BS3	S9V2B080D4VSB+RP	20.5	12.5	8.1	20,200	214638802
4PX*CD36BS3	S9V2C100D4VSA+RP	20.5	12.0	8.0	20,400	207590133
4PX*CD36BS3+HORIZ-RT	*UD2C080ACV4	20.5	12.0	8.0	20,400	211597749
TAMXB0B30V31	-	20.0	12.5	8.7	20,400	210929575
4PX*CU42BS3	*UD2C100ACV5	20.0	12.7	8.7	20,400	211289072
4PX*CU42BS3	S9V2C080U5PSC+RP	20.0	12.7	8.7	21,800	214639466
4TXCB006DS3	S8V2B080M4PCB	20.0	12.0	8.7	22,200	214717215
4PX*BU36BS3	S9V2B040U3PSB+RP	20.0	12.0	8.5	20,400	210652976
4PX*BU36BS3	S9V2B080U4PSB+RP	20.0	12.0	8.5	20,200	210610549
4PX*CU42BS3	S8V2C100M5PDA	20.0	12.5	8.5	20,600	211081410
4TXCB004DS3	S9V2B080U4VSA+RP	20.0	12.0	8.5	20,200	209326025
4TXCC005DS3	*UD2C100ACV5	20.0	12.0	8.5	20,400	207590683
4TXCC005DS3	*UD2C080ACV4	20.0	12.0	8.5	20,200	207590682
4TXCB004DS3	*UHMB080ACV3	20.0	12.0	8.5	20,400	207590676
4PX*CU36BS3	*UD2C080ACV4	20.0	12.0	8.5	20,200	207590660
4PX*BU36BS3	*UHMB060ACV3	20.0	12.0	8.5	20,400	207590651
4PX*BU36BS3	S9V2B080U4VSA+RP	20.0	12.0	8.5	20,200	207590621
4PX*CU36BS3	*UD2C100ACV5	20.0	12.0	8.5	20,400	207590658
4PX*CU48BS3	S8V2C080M5PDA	20.0	12.5	8.5	20,400	211081412
4PX*BU36BS3	*UHMB080ACV3	20.0	12.0	8.5	20,400	207590648
4TXCC005DS3	S9V2C100U4VSA+RP	20.0	12.0	8.5	20,200	207590145
4PX*CU36BS3	S9V2C100U4VSA+RP	20.0	12.0	8.5	20,200	207590135
4PX*BU36BS3	S9V2B040U3VSA+RP	20.0	12.0	8.5	20,400	207590129
4PX*CU48BS3	S8V2C080M5PCA	20.0	12.5	8.5	20,400	210692051
4PX*CU42BS3	S8V2C100M5PCA	20.0	12.5	8.5	20,600	210692048
4PX*CU42BS3	S8V2C100M5PCB	20.0	12.5	8.5	20,600	214253018
4PX*CU42BS3	S8V2C100M5PDB	20.0	12.5	8.5	20,600	214253020
4PX*CU48BS3	S8V2C080M5PCB	20.0	12.5	8.5	20,400	214253028
4PX*CU48BS3	S8V2C080M5PDB	20.0	12.5	8.5	20,400	214253030
4PX*CU36BS3	*UHMC100CCV4	20.0	12.0	8.5	20,200	214250652
4TXCB004DS3	*UHMB080CCV3	20.0	12.0	8.5	20,400	214250658
4TXCC005DS3	*UHMC100CCV4	20.0	12.0	8.5	20,200	214250666
4PX*BU36BS3	S9V2B040U3VSB+RP	20.0	12.0	8.5	20,400	214638804
4PX*BU36BS3	S9V2B080U4VSB+RP	20.0	12.0	8.5	20,200	214638806
4TXCB004DS3	S9V2B080U4VSB+RP	20.0	12.0	8.5	20,200	214638822
4PX*BD42BS3	S9V2B080D4PSC+RP	20.0	12.5	8.5	22,000	214639436
4PX*BD42BS3	S9V2B040D3PSC+RP	20.0	12.5	8.5	22,400	214639438
4PX*BD42BS3+HORIZ-RT	S9V2B080U4PSC+RP	20.0	12.5	8.5	22,000	214639440

Yearly running cost in 10 large cities$791-$2,259

Phoenix, AZ$995/yr
Miami, FL$791/yr
Houston, TX$892/yr
Atlanta, GA$931/yr
Los Angeles, CA$912/yr
New York, NY$2,259/yr
Chicago, IL$1,840/yr
Denver, CO$1,535/yr
Seattle, WA$948/yr
Minneapolis, MN$1,902/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 American Standard 4A6V0X36A1?: The American Standard 4A6V0X36A1 is rated at up to 20.5 SEER2 and 12.7 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 212 certified matchups SEER2 ranges from 17.5-20.5.
Is the American Standard 4A6V0X36A1 good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 22,400 BTU/h at 5°F with a COP of 1.92, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the American Standard 4A6V0X36A1 cost to run per year?: At its rated efficiency it costs about $791-$2,259 a year in electricity in large U.S. cities, depending on climate and local rates - for example $995 in Phoenix and $1,902 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 American Standard 4A6V0X36A1?: ENERGY STAR lists 212 certified combinations for this outdoor unit. The highest-rated ones use 4PX*CU48BS3, TEM8A0C42V41+TDR, TEM8A0C36V31+TDR.
What refrigerant does the American Standard 4A6V0X36A1 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 $997/yrYou save $730/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 American Standard 4A6V0X36A1

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: $997
Current system, per year: $1,728
You save per year: $730
Payback: 17.8 years
Net after 10 years: -$5,695

Cooling $591Heating $407Electricity used: 6,234 kWhSaved vs. a minimum-efficiency heat pump: $321

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 3 ton models

GE NS22H36MA4-**A20.5 SEER2 · 9.0 HSPF2
Trane 4TWV0X36A1 · cold climate20.5 SEER2 · 8.7 HSPF2
Lennox SL22KLV-036-230A · cold climate20.5 SEER2 · 10.5 HSPF2
Electric Air EA-RW36DCU · cold climate20.2 SEER2 · 10.2 HSPF2
Sure SP19AY36AJVC · cold climate21.0 SEER2 · 10.0 HSPF2
SAMYOU VUH36-VA6BA(O) · cold climate20.2 SEER2 · 10.2 HSPF2
Ruud UP19AY36AJVC · cold climate21.0 SEER2 · 10.0 HSPF2
Armstrong Air A7CP21V36P-**A · cold climate20.0 SEER2 · 10.4 HSPF2

See all 302 3 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 24, 2025. How we use the data.