What is the SEER2 rating of the Arcoaire D5CSRAH09AAK?

The Arcoaire D5CSRAH09AAK is rated at up to 26.0 SEER2 and 16.3 EER2 for cooling and up to 13.9 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 66 certified matchups SEER2 ranges from 19.6-26.0.

Is the Arcoaire D5CSRAH09AAK good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 8,600 BTU/h at 5°F with a COP of 2.36, so it is still 2.4 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire D5CSRAH09AAK cost to run per year?

At its rated efficiency it costs about $163-$451 a year in electricity in large U.S. cities, depending on climate and local rates - for example $203 in Phoenix and $378 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 Arcoaire D5CSRAH09AAK?

ENERGY STAR lists 66 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSFAH09XAK, COMFORTMAKER D5FSFAH09XAK, DAY & NIGHT D5FSFAH09XAK.

9,000 BTU mini-split heat pump · D5F Series

Arcoaire D5CSRAH09AAK

Excellent cooling and heating efficiency for a 9,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #114 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $187 a year to run in a mixed climate like Atlanta.

SEER2: 26.0 Cooling efficiency over a season
Excellent · beats 91%
HSPF2: 13.9 Heating efficiency over a season
Excellent · beats 98%
EER2: 16.3 Cooling efficiency on a 95°F day
Excellent · beats 98%
Heat at 5°F: 8,600 BTU/h96% of its 47°F output
Excellent · beats 90%

A good fit if…

You want low cooling bills - its SEER2 beats 91% of mini-splits.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 8,600 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 98% of mini-splits.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Nothing stands out - its ratings have no weak spot for its class.

Calculate my running cost

Details

Specifications9,000 BTU, R-454B

General
Brand	Arcoaire
Also sold as	Comfortmaker, Day & Night, Heil, Keeprite, Kenmore, Midea, Tempstar, Smart Comfort, Airquest, LPS Legacy
Outdoor unit model	D5CSRAH09AAK
Series	D5F Series
Type	Mini-split heat pump
Nominal size	9,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	November 15, 2018
Last certified	March 4, 2025
Cooling
SEER2Seasonal efficiency, higher is better	26.0 (range 19.6-26.0)
EER2Efficiency at 95°F outdoors	12.8-16.3
Cooling capacity	9,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	11.0-13.9
Capacity at 47°F	9,000-11,000 BTU/h
Capacity at 17°F	7,900-9,300 BTU/h
Capacity at 5°F	8,000-8,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.17-2.36
ENERGY STAR cold climate	Yes

Heating output as it gets colder96% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with D5FSFAH09XAK at the standard test temperatures, in BTU/h:

Certified matchups66 indoor units

The same outdoor unit scores differently with each indoor unit. The 60 highest-rated of 66 are shown. 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.
D5FSFAH09XAK ARCOAIRE · cold climate	26.0	16.3	13.9	8,600	215324133
D5FSFAH09XAK COMFORTMAKER · cold climate	26.0	16.3	13.9	8,600	215324206
D5FSFAH09XAK DAY & NIGHT · cold climate	26.0	16.3	13.9	8,600	215324279
D5FSFAH09XAK HEIL · cold climate	26.0	16.3	13.9	8,600	215324352
D5FSFAH09XAK KEEPRITE · cold climate	26.0	16.3	13.9	8,600	215324425
D5FSFAH09XAK KENMORE · cold climate	26.0	16.3	13.9	8,600	215324498
D5FSFAH09XAK MIDEA · cold climate	26.0	16.3	13.9	8,600	215324571
D5FSFAH09XAK TEMPSTAR · cold climate	26.0	16.3	13.9	8,600	215324644
D5FSFAH09XAK SMART COMFORT · cold climate	26.0	16.3	13.9	8,600	215324717
D5FSFAH09XAK AIRQUEST · cold climate	26.0	16.3	13.9	8,600	215324790
D5FSFAH09XAK LPS Legacy · cold climate	26.0	16.3	13.9	8,600	215324863
D5FSHAH09XAK ARCOAIRE · cold climate	26.0	14.9	12.5	8,000	215324130
D5FSHAH09XAK COMFORTMAKER · cold climate	26.0	14.9	12.5	8,000	215324203
D5FSHAH09XAK DAY & NIGHT · cold climate	26.0	14.9	12.5	8,000	215324276
D5FSHAH09XAK HEIL · cold climate	26.0	14.9	12.5	8,000	215324349
D5FSHAH09XAK KEEPRITE · cold climate	26.0	14.9	12.5	8,000	215324422
D5FSHAH09XAK KENMORE · cold climate	26.0	14.9	12.5	8,000	215324495
D5FSHAH09XAK MIDEA · cold climate	26.0	14.9	12.5	8,000	215324568
D5FSHAH09XAK TEMPSTAR · cold climate	26.0	14.9	12.5	8,000	215324641
D5FSHAH09XAK SMART COMFORT · cold climate	26.0	14.9	12.5	8,000	215324714
D5FSHAH09XAK AIRQUEST · cold climate	26.0	14.9	12.5	8,000	215324787
D5FSHAH09XAK LPS Legacy · cold climate	26.0	14.9	12.5	8,000	215324860
D5FSOAH12XAK ARCOAIRE · cold climate	22.2	14.4	11.8	8,000	215324131
D5FSOAH12XAK COMFORTMAKER · cold climate	22.2	14.4	11.8	8,000	215324204
D5FSOAH12XAK DAY & NIGHT · cold climate	22.2	14.4	11.8	8,000	215324277
D5FSOAH12XAK HEIL · cold climate	22.2	14.4	11.8	8,000	215324350
D5FSOAH12XAK KEEPRITE · cold climate	22.2	14.4	11.8	8,000	215324423
D5FSOAH12XAK KENMORE · cold climate	22.2	14.4	11.8	8,000	215324496
D5FSOAH12XAK MIDEA · cold climate	22.2	14.4	11.8	8,000	215324569
D5FSOAH12XAK TEMPSTAR · cold climate	22.2	14.4	11.8	8,000	215324642
D5FSOAH12XAK SMART COMFORT · cold climate	22.2	14.4	11.8	8,000	215324715
D5FSOAH12XAK AIRQUEST · cold climate	22.2	14.4	11.8	8,000	215324788
D5FSOAH12XAK LPS Legacy · cold climate	22.2	14.4	11.8	8,000	215324861
D5FSCAH12XAK ARCOAIRE · cold climate	21.7	14.3	11.3	8,300	215324132
D5FSCAH12XAK COMFORTMAKER · cold climate	21.7	14.3	11.3	8,300	215324205
D5FSCAH12XAK DAY & NIGHT · cold climate	21.7	14.3	11.3	8,300	215324278
D5FSCAH12XAK HEIL · cold climate	21.7	14.3	11.3	8,300	215324351
D5FSCAH12XAK KEEPRITE · cold climate	21.7	14.3	11.3	8,300	215324424
D5FSCAH12XAK KENMORE · cold climate	21.7	14.3	11.3	8,300	215324497
D5FSCAH12XAK MIDEA · cold climate	21.7	14.3	11.3	8,300	215324570
D5FSCAH12XAK TEMPSTAR · cold climate	21.7	14.3	11.3	8,300	215324643
D5FSCAH12XAK SMART COMFORT · cold climate	21.7	14.3	11.3	8,300	215324716
D5FSCAH12XAK AIRQUEST · cold climate	21.7	14.3	11.3	8,300	215324789
D5FSCAH12XAK LPS Legacy · cold climate	21.7	14.3	11.3	8,300	215324862
D5FSDAH12XHK ARCOAIRE · cold climate	19.8	13.0	11.5	8,300	215324135
D5FSDAH12XHK COMFORTMAKER · cold climate	19.8	13.0	11.5	8,300	215324208
D5FSDAH12XHK DAY & NIGHT · cold climate	19.8	13.0	11.5	8,300	215324281
D5FSDAH12XHK HEIL · cold climate	19.8	13.0	11.5	8,300	215324354
D5FSDAH12XHK KEEPRITE · cold climate	19.8	13.0	11.5	8,300	215324427
D5FSDAH12XHK KENMORE · cold climate	19.8	13.0	11.5	8,300	215324500
D5FSDAH12XHK MIDEA · cold climate	19.8	13.0	11.5	8,300	215324573
D5FSDAH12XHK TEMPSTAR · cold climate	19.8	13.0	11.5	8,300	215324646
D5FSDAH12XHK SMART COMFORT · cold climate	19.8	13.0	11.5	8,300	215324719
D5FSDAH12XHK AIRQUEST · cold climate	19.8	13.0	11.5	8,300	215324792
D5FSDAH12XHK LPS Legacy · cold climate	19.8	13.0	11.5	8,300	215324865
D5FSDAH12XAK ARCOAIRE · cold climate	19.6	12.8	11.0	8,600	215324134
D5FSDAH12XAK COMFORTMAKER · cold climate	19.6	12.8	11.0	8,600	215324207
D5FSDAH12XAK DAY & NIGHT · cold climate	19.6	12.8	11.0	8,600	215324280
D5FSDAH12XAK HEIL · cold climate	19.6	12.8	11.0	8,600	215324353
D5FSDAH12XAK KEEPRITE · cold climate	19.6	12.8	11.0	8,600	215324426

Yearly running cost in 10 large cities$163-$451

Phoenix, AZ$203/yr
Miami, FL$163/yr
Houston, TX$182/yr
Atlanta, GA$187/yr
Los Angeles, CA$183/yr
New York, NY$451/yr
Chicago, IL$367/yr
Denver, CO$305/yr
Seattle, WA$188/yr
Minneapolis, MN$378/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 Arcoaire D5CSRAH09AAK?: The Arcoaire D5CSRAH09AAK is rated at up to 26.0 SEER2 and 16.3 EER2 for cooling and up to 13.9 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 66 certified matchups SEER2 ranges from 19.6-26.0.
Is the Arcoaire D5CSRAH09AAK good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 8,600 BTU/h at 5°F with a COP of 2.36, so it is still 2.4 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire D5CSRAH09AAK cost to run per year?: At its rated efficiency it costs about $163-$451 a year in electricity in large U.S. cities, depending on climate and local rates - for example $203 in Phoenix and $378 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 Arcoaire D5CSRAH09AAK?: ENERGY STAR lists 66 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSFAH09XAK, COMFORTMAKER D5FSFAH09XAK, DAY & NIGHT D5FSFAH09XAK.
What refrigerant does the Arcoaire D5CSRAH09AAK use?: It uses R-454B.

Running cost and savings

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

Heat pump $202/yrYou save $278/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 Arcoaire D5CSRAH09AAK

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: $202
Current system, per year: $480
You save per year: $278
Payback: 12.6 years
Net after 10 years: -$720

Cooling $122Heating $81Electricity used: 1,265 kWhSaved vs. a minimum-efficiency heat pump: $168

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 9,000 BTU models

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Carrier 37MARAQ09AA3 · cold climate26.0 SEER2 · 13.9 HSPF2
ACIQ ACIQ-09ZS-HP230C · cold climate26.0 SEER2 · 13.9 HSPF2
Cooper&Hunter CH-RES09-230VO · cold climate26.0 SEER2 · 13.9 HSPF2
AC Pro MHPC-H-009BSB · cold climate26.0 SEER2 · 13.9 HSPF2
DIRECT AIR DIRM4-09DA25-1Z · cold climate26.0 SEER2 · 13.9 HSPF2
MDV MOX330-09HFN1-MY6W · cold climate26.3 SEER2 · 11.4 HSPF2
DuraSTAR DRA1U09S2A · cold climate26.0 SEER2 · 13.9 HSPF2

See all 395 9,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 4, 2025. How we use the data.