What is the SEER2 rating of the Arcoaire D5CSHAH09AAK?

The Arcoaire D5CSHAH09AAK is rated at up to 27.5 SEER2 and 15.5 EER2 for cooling and up to 13.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 72 certified matchups SEER2 ranges from 20.6-27.5.

Is the Arcoaire D5CSHAH09AAK good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 11,900 BTU/h at 5°F with a COP of 1.89, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire D5CSHAH09AAK cost to run per year?

At its rated efficiency it costs about $154-$449 a year in electricity in large U.S. cities, depending on climate and local rates - for example $195 in Phoenix and $379 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 D5CSHAH09AAK?

ENERGY STAR lists 72 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSHAH09XAK, COMFORTMAKER D5FSHAH09XAK, DAY & NIGHT D5FSHAH09XAK.

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

Arcoaire D5CSHAH09AAK

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

Ranks #56 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $184 a year to run in a mixed climate like Atlanta.

SEER2: 27.5 Cooling efficiency over a season
Excellent · beats 96%
HSPF2: 13.8 Heating efficiency over a season
Excellent · beats 97%
EER2: 15.5 Cooling efficiency on a 95°F day
Excellent · beats 94%
Heat at 5°F: 11,900 BTU/h96% of its 47°F output
Below average · beats 22%

A good fit if…

You want low cooling bills - its SEER2 beats 96% of mini-splits.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 11,900 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 97% 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, Viessmann
Outdoor unit model	D5CSHAH09AAK
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	May 28, 2026
Cooling
SEER2Seasonal efficiency, higher is better	27.5 (range 20.6-27.5)
EER2Efficiency at 95°F outdoors	13.5-15.5
Cooling capacity	9,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.9-13.8
Capacity at 47°F	9,000-12,000 BTU/h
Capacity at 17°F	9,000-12,000 BTU/h
Capacity at 5°F	10,600-11,900 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.80-1.89
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 D5FSHAH09XAK at the standard test temperatures, in BTU/h:

Certified matchups72 indoor units

The same outdoor unit scores differently with each indoor unit. The 60 highest-rated of 72 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.
D5FSHAH09XAK ARCOAIRE · cold climate	27.5	15.5	12.5	11,500	215324105
D5FSHAH09XAK COMFORTMAKER · cold climate	27.5	15.5	12.5	11,500	215324178
D5FSHAH09XAK DAY & NIGHT · cold climate	27.5	15.5	12.5	11,500	215324251
D5FSHAH09XAK HEIL · cold climate	27.5	15.5	12.5	11,500	215324324
D5FSHAH09XAK KEEPRITE · cold climate	27.5	15.5	12.5	11,500	215324397
D5FSHAH09XAK KENMORE · cold climate	27.5	15.5	12.5	11,500	215324470
D5FSHAH09XAK MIDEA · cold climate	27.5	15.5	12.5	11,500	215324543
D5FSHAH09XAK TEMPSTAR · cold climate	27.5	15.5	12.5	11,500	215324616
D5FSHAH09XAK SMART COMFORT · cold climate	27.5	15.5	12.5	11,500	215324689
D5FSHAH09XAK AIRQUEST · cold climate	27.5	15.5	12.5	11,500	215324762
D5FSHAH09XAK LPS Legacy · cold climate	27.5	15.5	12.5	11,500	215324835
D5FSHAH09XAK Viessmann · cold climate	27.5	15.5	12.5	11,500	217178783
D5FSFAH09XAK ARCOAIRE · cold climate	27.3	15.2	10.9	11,300	215324108
D5FSFAH09XAK COMFORTMAKER · cold climate	27.3	15.2	10.9	11,300	215324181
D5FSFAH09XAK DAY & NIGHT · cold climate	27.3	15.2	10.9	11,300	215324254
D5FSFAH09XAK HEIL · cold climate	27.3	15.2	10.9	11,300	215324327
D5FSFAH09XAK KEEPRITE · cold climate	27.3	15.2	10.9	11,300	215324400
D5FSFAH09XAK KENMORE · cold climate	27.3	15.2	10.9	11,300	215324473
D5FSFAH09XAK MIDEA · cold climate	27.3	15.2	10.9	11,300	215324546
D5FSFAH09XAK TEMPSTAR · cold climate	27.3	15.2	10.9	11,300	215324619
D5FSFAH09XAK SMART COMFORT · cold climate	27.3	15.2	10.9	11,300	215324692
D5FSFAH09XAK AIRQUEST · cold climate	27.3	15.2	10.9	11,300	215324765
D5FSFAH09XAK LPS Legacy · cold climate	27.3	15.2	10.9	11,300	215324838
D5FSFAH09XAK Viessmann · cold climate	27.3	15.2	10.9	11,300	217178786
D5FSOAH12XAK ARCOAIRE · cold climate	24.0	14.7	12.2	10,600	215324106
D5FSOAH12XAK COMFORTMAKER · cold climate	24.0	14.7	12.2	10,600	215324179
D5FSOAH12XAK DAY & NIGHT · cold climate	24.0	14.7	12.2	10,600	215324252
D5FSOAH12XAK HEIL · cold climate	24.0	14.7	12.2	10,600	215324325
D5FSOAH12XAK KEEPRITE · cold climate	24.0	14.7	12.2	10,600	215324398
D5FSOAH12XAK KENMORE · cold climate	24.0	14.7	12.2	10,600	215324471
D5FSOAH12XAK MIDEA · cold climate	24.0	14.7	12.2	10,600	215324544
D5FSOAH12XAK TEMPSTAR · cold climate	24.0	14.7	12.2	10,600	215324617
D5FSOAH12XAK SMART COMFORT · cold climate	24.0	14.7	12.2	10,600	215324690
D5FSOAH12XAK AIRQUEST · cold climate	24.0	14.7	12.2	10,600	215324763
D5FSOAH12XAK LPS Legacy · cold climate	24.0	14.7	12.2	10,600	215324836
D5FSOAH12XAK Viessmann · cold climate	24.0	14.7	12.2	10,600	217178784
D5FSCAH12XAK ARCOAIRE · cold climate	22.7	14.0	12.2	11,000	215324107
D5FSCAH12XAK COMFORTMAKER · cold climate	22.7	14.0	12.2	11,000	215324180
D5FSCAH12XAK DAY & NIGHT · cold climate	22.7	14.0	12.2	11,000	215324253
D5FSCAH12XAK HEIL · cold climate	22.7	14.0	12.2	11,000	215324326
D5FSCAH12XAK KEEPRITE · cold climate	22.7	14.0	12.2	11,000	215324399
D5FSCAH12XAK KENMORE · cold climate	22.7	14.0	12.2	11,000	215324472
D5FSCAH12XAK MIDEA · cold climate	22.7	14.0	12.2	11,000	215324545
D5FSCAH12XAK TEMPSTAR · cold climate	22.7	14.0	12.2	11,000	215324618
D5FSCAH12XAK SMART COMFORT · cold climate	22.7	14.0	12.2	11,000	215324691
D5FSCAH12XAK AIRQUEST · cold climate	22.7	14.0	12.2	11,000	215324764
D5FSCAH12XAK LPS Legacy · cold climate	22.7	14.0	12.2	11,000	215324837
D5FSCAH12XAK Viessmann · cold climate	22.7	14.0	12.2	11,000	217178785
D5FSDAH12XAK ARCOAIRE · cold climate	21.5	13.5	12.5	11,200	215324109
D5FSDAH12XAK COMFORTMAKER · cold climate	21.5	13.5	12.5	11,200	215324182
D5FSDAH12XAK DAY & NIGHT · cold climate	21.5	13.5	12.5	11,200	215324255
D5FSDAH12XAK HEIL · cold climate	21.5	13.5	12.5	11,200	215324328
D5FSDAH12XAK KEEPRITE · cold climate	21.5	13.5	12.5	11,200	215324401
D5FSDAH12XAK KENMORE · cold climate	21.5	13.5	12.5	11,200	215324474
D5FSDAH12XAK MIDEA · cold climate	21.5	13.5	12.5	11,200	215324547
D5FSDAH12XAK TEMPSTAR · cold climate	21.5	13.5	12.5	11,200	215324620
D5FSDAH12XAK SMART COMFORT · cold climate	21.5	13.5	12.5	11,200	215324693
D5FSDAH12XAK AIRQUEST · cold climate	21.5	13.5	12.5	11,200	215324766
D5FSDAH12XAK LPS Legacy · cold climate	21.5	13.5	12.5	11,200	215324839
D5FSDAH12XAK Viessmann · cold climate	21.5	13.5	12.5	11,200	217178787

Yearly running cost in 10 large cities$154-$449

Phoenix, AZ$195/yr
Miami, FL$154/yr
Houston, TX$175/yr
Atlanta, GA$184/yr
Los Angeles, CA$181/yr
New York, NY$449/yr
Chicago, IL$366/yr
Denver, CO$306/yr
Seattle, WA$189/yr
Minneapolis, MN$379/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 D5CSHAH09AAK?: The Arcoaire D5CSHAH09AAK is rated at up to 27.5 SEER2 and 15.5 EER2 for cooling and up to 13.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 72 certified matchups SEER2 ranges from 20.6-27.5.
Is the Arcoaire D5CSHAH09AAK good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 11,900 BTU/h at 5°F with a COP of 1.89, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire D5CSHAH09AAK cost to run per year?: At its rated efficiency it costs about $154-$449 a year in electricity in large U.S. cities, depending on climate and local rates - for example $195 in Phoenix and $379 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 D5CSHAH09AAK?: ENERGY STAR lists 72 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSHAH09XAK, COMFORTMAKER D5FSHAH09XAK, DAY & NIGHT D5FSHAH09XAK.
What refrigerant does the Arcoaire D5CSHAH09AAK 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 $196/yrYou save $284/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 D5CSHAH09AAK

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: $196
Current system, per year: $480
You save per year: $284
Payback: 12.3 years
Net after 10 years: -$659

Cooling $115Heating $81Electricity used: 1,227 kWhSaved vs. a minimum-efficiency heat pump: $175

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

MRCOOL O-HH-09-HP-C-230A · cold climate28.1 SEER2 · 11.5 HSPF2
Carrier 37MAHAQ09AA3 · cold climate27.5 SEER2 · 13.8 HSPF2
EMI MHSZ109DA · cold climate28.1 SEER2 · 11.5 HSPF2
MDV MOX330-09HFN10-M1X · cold climate27.5 SEER2 · 13.8 HSPF2
CanAir C28SCH09H21 · cold climate28.1 SEER2 · 11.5 HSPF2
Panasonic CS-Z9AKUAW/CU-XZ9AKUAC · cold climate27.5 SEER2 · 12.0 HSPF2
NOVAIR LEA09SZ35SK-O · cold climate28.1 SEER2 · 11.6 HSPF2
Panasonic CU-XZ9AKUAC · cold climate27.5 SEER2 · 12.0 HSPF2

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

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 28, 2026. How we use the data.