ACiQ / ACiQ Essentials
ACiQ Essentials 9k R-454B 115V Mini-Split
A 115V Essentials 9,000 BTU zone built around R-454B, the newer low-GWP refrigerant ACiQ uses across its higher tiers. Ratings come in at 19 SEER2, 11.7 EER2, and 9.5 HSPF2.
Heating starts at 10,000 BTU at 47F but tapers more noticeably than the R-32 version, dropping to 8,000 BTU at 17F and 7,300 BTU at 5F. Reasonable for a small conditioned space where the R-454B refrigerant platform is preferred.
Refrigerant generation
R-454B - current-generation refrigerant
Paid link
$666 / Fresh price - checked Jul 26, 2026
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Image: HVACDirect
- Last sourced
- Jul 26, 2026
SplitAtlas score
7.4 / 10
(19.0 SEER2) among <=9k systems
(9.5 HSPF2) among <=9k systems
(73% heat retained at 5F; -4 F heating floor) among <=9k systems
(28 dBA indoor min / 54 dBA outdoor) among <=9k systems
(4 yr parts / 6 yr compressor) across the catalogue
(3 verified features) across the catalogue
($666 median retail) among <=9k systems
(6 manuals; spec sheet) across the catalogue
Not evaluated
- Installation accessibility — not applicable (professional install)N/A
professional install - DIY-accessibility not applicable
Key ratings
Buyer review snapshot
Install difficulty
- Electrical: 115V; MCA 16 A; breaker/fuse 25 A.
- Line set: connection type not sourced; precharged 16 ft; included 16 ft.
Alternatives
- Blueridge XS6 Max Efficiency 9,000 BTU R-454B 208/230V (BXS6A09WM0 / BXS6A09UC0)
8.9 score / 9k / SEER2 33.3 / -22 F heating floor / 230V
Exact destination at Alpine Home Air: $1,689.00, checked Jul 24, 2026
- Senville ELITE 9,000 BTU R-454B 208/230V (SENE-09EL-IHH / SENE-09EL-OH)
8.8 score / 9k / SEER2 33.3 / -22 F heating floor / 187-253V
Exact destination at Senville: $1,599.99, checked Jul 24, 2026
- Daikin ATMOSPHERA 9,000 BTU R-32 208/230V (FTXM09WVJU9 / RXM09WVJU9)
8.8 score / 9k / SEER2 27.4 / -13 F heating floor / 208/230V
Exact destination at HVACDirect: $2,428.00, checked Jul 23, 2026
Availability and price context
- Verified current price: $665.99 at HVACDirect; availability ships_5_7_days; checked Jul 26, 2026.
Source date
- Model data sourced
- Jul 26, 2026
- Page reviewed
- Jul 26, 2026
- Source-backed records
- 3
- Newest source retrieved
- Jul 26, 2026
Warranty tiers
Warranty: 4 years parts and 6 years compressor as standard.
Strengths
- Runs on R-454B, a current low-GWP refrigerant that keeps this unit aligned with where the industry is heading.
- Plug-friendly 115V power makes it easy to place in rooms without a dedicated 230V circuit.
Weaknesses
- Heat output falls off sooner than the R-32 9k, giving up 2,000 BTU by 17F, so it's less at home in genuinely cold weather.
- Not ENERGY STAR certified, and as a value house brand it carries a smaller dealer footprint than premium competitors.
Climate suitability
- Minimum heating ambient
- -4 F[1]
- Rated heating at 5F
- 7,300 BTU/h[2]
- Rated heating at 17F
- 8,000 BTU/h[2]
- Rated heating at 47F
- 10,000 BTU/h[2]
Specifications
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- Manufacturer
- ACiQ
- Brand
- ACiQ
- Product line
- ACiQ Essentials
- Model number
- ACIQ-K09W-BL-HP115B indoor / ACIQ-K09Z-HP115B outdoor
- Indoor unit model
- ACIQ-K09W-BL-HP115B
- Outdoor unit model
- ACIQ-K09Z-HP115B
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 9,000 BTU/h[2]
- Rated heating capacity
- 10,000 BTU/h[2]
- Voltage
- 115 V[1]
- MCA
- 16 A[1]
- Maximum fuse or breaker size
- 25 A[1]
- Breaker needed
- not published
- SEER2
- 19 SEER2[2]
- EER2
- 11.7 EER2[2]
- HSPF2 (Region 4)
- 9.5 HSPF2[2]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 1.9 COP[2]
- Minimum outdoor heating temperature
- -4 F[1]
- Minimum outdoor cooling temperature
- 5 F[1]
- Maximum outdoor temperature
- 122 F[1]
- Indoor noise range
- 28 / 42 dB(A)[1]
- Outdoor noise rating
- 54 dBA[1]
- Indoor weight
- 26.5 lb[1]
- Outdoor weight
- 61.7 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- 24 oz[1]
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 3/8 in suction
- Included line-set length
- 16 ft[1]
- Maximum line-set length
- not published
- Max line set per indoor
- not published
- Maximum elevation difference
- not published
- Max height between indoor units
- not published
- Wi-Fi support
- supported[1]
- Energy Star status
- Not ENERGY STAR certified[3]
- AHRI certification number
- 217606037[2]
- Warranty
- Standard: 4 yr parts / 6 yr compressor (published per-line terms with online registration). 6-year compressor / 4-year parts with online registration
- Install path
- Professional install
- Retail price
- $665.99
- Available retailers
- HVACDirect
- Manual links
- AHRI public directory record 217606037, ENERGY STAR exact check 217606037, 9,000 BTU ACiQ Essentials 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 115V HVACDirect installation resources listing, 9,000 BTU ACiQ Essentials 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 115V, HVACDirect exact affiliate offer aciq-essentials-9k-r454b-115v, 9,000 BTU ACiQ Essentials 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 115V HVACDirect product specification grid
- Specification sheet
- 9,000 BTU ACiQ Essentials 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 115V HVACDirect product specification grid
- Last sourced date
- Jul 26, 2026
Retail purchase context
Some retailer links may earn us a commission at no extra cost; paid relationships never change scores or recommendations. Affiliate disclosure
Paid link
$666 / Fresh price - checked Jul 26, 2026
Installation considerations
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- Liquid line
- 1/4 in[1]
- Suction line
- 3/8 in[1]
- Line connection type
- not published
- Precharged length
- 16 ft[1]
- Included line-set length
- 16 ft[1]
- Maximum line-set length
- not published
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 31.93 x 11.50 x 7.99 in[1]
- Outdoor dimensions
- 30.98 x 19.61 x 11.42 in[1]
- Indoor weight
- 26.5 lb[1]
- Outdoor weight
- 61.7 lb[1]
- Drain size
- not published
Related systems and guides
- More ACiQ systems
- ACiQ 230 V option
- ACiQ Essentials 9k 230V
- ACiQ 9k model
- ACiQ Extreme 9k 230V
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- ACiQ mini split review: is ACiQ any good?
- The best 9,000 BTU mini splits of 2026
- The best DIY mini splits of 2026
- What "DIY mini split" actually means
- How to install a mini split (DIY overview)
- R-32 vs R-454B: the mini split refrigerant change explained
- Mini split for a hot upstairs
- Mini splits for an ADU or tiny home
- Mini splits for a mobile or manufactured home
- Mini split remote not working
- Mini split Wi-Fi not connecting
- Your mini split is showing a refrigerant leak code
- Mini split not heating
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the ACiQ Essentials 9,000 BTU R-454B 115V (ACIQ-K09W-BL-HP115B / ACIQ-K09Z-HP115B) myself, or do I need a pro?
- ACiQ Essentials 9,000 BTU R-454B 115V (ACIQ-K09W-BL-HP115B / ACIQ-K09Z-HP115B) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
- Will the ACiQ Essentials 9,000 BTU R-454B 115V (ACIQ-K09W-BL-HP115B / ACIQ-K09Z-HP115B) keep heating in a cold winter?
- The manufacturer publishes 7,300 BTU/h of heating output at 5F. Rated heating operation extends down to -4 F. Certified heating efficiency is 9.5 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
- What electrical circuit does the ACiQ Essentials 9,000 BTU R-454B 115V (ACIQ-K09W-BL-HP115B / ACIQ-K09Z-HP115B) need?
- Published electrical requirements: 115 V voltage, 16 A minimum circuit ampacity, and 25 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
- What warranty does the ACiQ Essentials 9,000 BTU R-454B 115V (ACIQ-K09W-BL-HP115B / ACIQ-K09Z-HP115B) carry?
- The manufacturer publishes these warranty tiers: Standard: 4 yr parts / 6 yr compressor (published per-line terms with online registration). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
Data sources
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- HVACDirect / ACiQ: 9,000 BTU ACiQ Essentials 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 115VSourced - manufacturer product page
Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Voltage and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for ACIQ-K09Z-HP115B / ACIQ-K09W-BL-HP115BSourced - AHRI directory
Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more
- ENERGY STAR: ENERGY STAR exact row check for AHRI 217606037Sourced - Energy Star listing
Covers Energy Star status
Last updated
Jul 26, 2026