ACiQ / ACiQ Essentials
ACiQ Essentials 9k R-454B 208/230V Mini-Split
The 230V R-454B member of the 9,000 BTU Essentials group nudges the numbers up to 20 SEER2, 12 EER2, and a tier-leading 10 HSPF2. Its heating profile mirrors the 115V R-454B unit: 10,000 BTU at 47F, easing to 8,000 BTU at 17F and 7,400 BTU at 5F. The standout 10 HSPF2 makes it the most seasonally efficient heater in the R-454B Essentials 9k pairing.
Refrigerant generation
R-454B - current-generation refrigerant
Paid link
$710 / Fresh price - checked Jul 26, 2026
Need this installed?
Get installation quotes
Image: HVACDirect
- Last sourced
- Jul 26, 2026
SplitAtlas score
7.6 / 10
(20.0 SEER2) among <=9k systems
(10.0 HSPF2) among <=9k systems
(74% heat retained at 5F; -4 F heating floor) among <=9k systems
(4 yr parts / 6 yr compressor) across the catalogue
(3 verified features) across the catalogue
($710 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
Best-fit use cases
A good match for a bedroom or office on a 230V circuit in a mixed climate, where seasonal heating efficiency matters more than deep-cold capacity.
Buyer review snapshot
Install difficulty
- Electrical: 230V; MCA 10 A; breaker/fuse 15 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: $709.99 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
- HSPF2 of 10 is excellent for the Essentials tier, meaning strong seasonal heating economy over a full winter.
- R-454B refrigerant and a 12 EER2 give it a modern, efficient cooling foundation.
- Available direct from HVACDirect with clear house-brand pricing.
Weaknesses
- Low-temperature heat tapers to 7,400 BTU at 5F, so a truly cold climate will strain it.
- No ENERGY STAR label, and value-brand support is thinner than Mitsubishi- or Daikin-level networks.
Climate suitability
- Minimum heating ambient
- -4 F[1]
- Rated heating at 5F
- 7,400 BTU/h[2]
- Rated heating at 17F
- 8,000 BTU/h[2]
- Rated heating at 47F
- 10,000 BTU/h[2]
Specifications
ShowHide
- Manufacturer
- ACiQ
- Brand
- ACiQ
- Product line
- ACiQ Essentials
- Model number
- ACIQ-K09W-BL-HP230B indoor / ACIQ-K09Z-HP230B outdoor
- Indoor unit model
- ACIQ-K09W-BL-HP230B
- Outdoor unit model
- ACIQ-K09Z-HP230B
- 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
- 230 V[1]
- MCA
- 10 A[1]
- Maximum fuse or breaker size
- 15 A[1]
- Breaker needed
- not published
- SEER2
- 20 SEER2[2]
- EER2
- 12 EER2[2]
- HSPF2 (Region 4)
- 10 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
- not published
- Outdoor noise rating
- 54 dBA[1]
- Indoor weight
- not published
- Outdoor weight
- 58.4 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- not published
- 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
- 217606038[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
- $709.99
- Available retailers
- HVACDirect
- Manual links
- AHRI public directory record 217606038, ENERGY STAR exact check 217606038, 9,000 BTU ACiQ Essentials 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V HVACDirect installation resources listing, 9,000 BTU ACiQ Essentials 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V, HVACDirect exact affiliate offer aciq-essentials-9k-r454b-230v, 9,000 BTU ACiQ Essentials 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V HVACDirect product specification grid
- Specification sheet
- 9,000 BTU ACiQ Essentials 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V 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
$710 / Fresh price - checked Jul 26, 2026
Installation considerations
ShowHide
- 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
- not published
- Outdoor dimensions
- 30.98 x 19.61 x 11.42 in[1]
- Indoor weight
- not published
- Outdoor weight
- 58.4 lb[1]
- Drain size
- not published
Comparable models
Related systems and guides
- More ACiQ systems
- ACiQ Essentials 9k 115V
- ACiQ Extreme 9k
- ACiQ sibling model
- ACiQ Standard 9k 115V
- 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
- How to read a mini split spec sheet
- Mini split remote not working
- Mini split Wi-Fi not connecting
- Your mini split is showing a refrigerant leak code
- Mini split lights blinking
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the ACiQ Essentials 9,000 BTU R-454B 208/230V (ACIQ-K09W-BL-HP230B / ACIQ-K09Z-HP230B) myself, or do I need a pro?
- ACiQ Essentials 9,000 BTU R-454B 208/230V (ACIQ-K09W-BL-HP230B / ACIQ-K09Z-HP230B) 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 208/230V (ACIQ-K09W-BL-HP230B / ACIQ-K09Z-HP230B) keep heating in a cold winter?
- The manufacturer publishes 7,400 BTU/h of heating output at 5F. Rated heating operation extends down to -4 F. Certified heating efficiency is 10 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 208/230V (ACIQ-K09W-BL-HP230B / ACIQ-K09Z-HP230B) need?
- Published electrical requirements: 230 V voltage, 10 A minimum circuit ampacity, and 15 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 208/230V (ACIQ-K09W-BL-HP230B / ACIQ-K09Z-HP230B) 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
ShowHide
- HVACDirect / ACiQ: 9,000 BTU ACiQ Essentials 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230VSourced - 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-HP230B / ACIQ-K09W-BL-HP230BSourced - 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 217606038Sourced - Energy Star listing
Covers Energy Star status
Last updated
Jul 26, 2026