Panasonic / ClimaPure XZ Series
Panasonic ClimaPure XZ 18k R-32 208/230V Mini-Split
The Panasonic ClimaPure XZ 18k is the 1.5-ton flagship: SEER2 22, EER2 13.65, HSPF2 11.7 on R-32, with heating climbing from 17,200 BTU at 47F to 21,000 BTU at 17F and 17,800 BTU at 5F. It is a strong primary heat source for a large room in a cold climate, with air purification built in.
1 zoneProfessional installCurrent
Refrigerant generation
R-32 - current-generation refrigerant
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Image: Panasonic
Data completeness: 95%
- Last sourced
- Jul 24, 2026
SplitAtlas score
9.5 / 10
Cooling efficiencyAbove average
(22.0 SEER2) among 18k systems
Heating efficiencyTop 10%
(11.7 HSPF2) among 18k systems
Cold-weather performanceTop quartile
(100% heat retained at 5F; -15 F heating floor) among 18k systems
NoiseTop 10%
(-46 dBA indoor min / 52 dBA outdoor) among 18k systems
Feature setTop 10%
(8 verified features) across the catalogue
Documentation & partsTop quartile
(8 manuals; spec sheet; 56 error-code rows) across the catalogue
Not evaluated
- Installation accessibility — not applicable (professional install)N/A
professional install - DIY-accessibility not applicable
- Price-to-value — not evaluatedN/A
This is a professionally installed, quote-only system, so we can't score its price. Get an installed quote to compare real cost.
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Key ratings
Buyer review snapshot
Best for / skip if
Best for
- High-efficiency shortlists; SEER2 is 22.
Install difficulty
Professional install
- Electrical: 230V; MCA 15 A; breaker/fuse 20 A.
- Line set: connection type not sourced; precharged 25 ft; max 100 ft.
Availability and price context
We could not verify a current retail price for this model. We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-24.
Source date
- Model data sourced
- Jul 24, 2026
- Page reviewed
- Jul 23, 2026
- Source-backed records
- 4
- Newest source retrieved
- Jul 24, 2026
Model context
- Install path
- This is professional-install equipment; no verified current retail offer is attached.
Strengths
- Heating boosts to 21,000 BTU at 17F and holds 17,800 BTU at 5F - heavy deep-cold output.
- SEER2 22 / HSPF2 11.7 with current R-32 refrigerant.
- nanoe-X air purification; Panasonic dealer support.
Weaknesses
- No current online retail listing.
Climate suitability
- Minimum heating ambient
- -15 F[2]
- Rated heating at 5F
- 17,800 BTU/h[3]
- Rated heating at 17F
- 21,000 BTU/h[3]
- Rated heating at 47F
- 17,200 BTU/h[3]
Specifications
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- Manufacturer
- Panasonic
- Brand
- Panasonic
- Product line
- ClimaPure XZ Series
- Model number
- CS-XZ18AKUAW indoor / CU-XZ18AKUAC outdoor
- Indoor unit model
- CS-XZ18AKUAW
- Outdoor unit model
- CU-XZ18AKUAC
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 17,200 BTU/h[3]
- Rated heating capacity
- 17,200 BTU/h[3]
- Voltage
- 230 V[1]
- MCA
- 15 A[2]
- Maximum fuse or breaker size
- 20 A[2]
- Breaker needed
- not published
- SEER2
- 22 SEER2[3]
- EER2
- 13.65 EER2[3]
- HSPF2 (Region 4)
- 11.7 HSPF2[3]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 2.22 COP[3]
- Minimum outdoor heating temperature
- -15 F[2]
- Minimum outdoor cooling temperature
- 0 F[2]
- Maximum outdoor temperature
- 115 F[2]
- Indoor noise range
- 34-46 dB(A)[2]
- Outdoor noise rating
- 52 dBA[2]
- Indoor weight
- 31 lb[1]
- Outdoor weight
- 14 lb[1]
- Refrigerant
- R-32[3]
- Refrigerant charge
- not published
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 1/2 in suction
- Included line-set length
- Panasonic current R-32 high-wall professional-install sources publish refrigerant piping size, maximum length, and precharged length, but no included line set.
- Maximum line-set length
- 100 ft[2]
- Max line set per indoor
- not published
- Maximum elevation difference
- 65.6 ft[2]
- Max height between indoor units
- not published
- Wi-Fi support
- supported[2]
- Energy Star status
- ENERGY STAR certified[4]
- AHRI certification number
- 214837755[3]
- Warranty
- not published
- Install path
- Professional install
- Retail price
- We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-24.
- Available retailers
- not published
- Manual links
- AHRI certificate 214837755, AHRI public directory record 214837755, ENERGY STAR exact Panasonic row for CS-XZ18AKUAW / CU-XZ18AKUAC, HVACDirect exact Panasonic search summary for CS-XZ18AKUAW / CU-XZ18AKUAC, Panasonic ClimaPure XZ Series 18k installation manual, Panasonic ClimaPure XZ Series 18k product page extracted text, Panasonic ClimaPure XZ Series 18k product page snapshot, Panasonic ClimaPure XZ Series 18k system submittal
- Specification sheet
- Panasonic ClimaPure XZ Series 18k product page snapshot
- Last sourced date
- Jul 24, 2026
Installation considerations
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- Liquid line
- 1/4 in[2]
- Suction line
- 1/2 in[2]
- Line connection type
- not published
- Precharged length
- 25 ft[2]
- Included line-set length
- Panasonic current R-32 high-wall professional-install sources publish refrigerant piping size, maximum length, and precharged length, but no included line set.
- Maximum line-set length
- 100 ft[2]
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 40-31/32 x 9-5/8 x 11-5/8 in[1]
- Outdoor dimensions
- 34-15/32 x 12-5/8 x 31-5/16 in[1]
- Indoor weight
- 31 lb[1]
- Outdoor weight
- 14 lb[1]
- Drain size
- not published
Related systems and guides
- More Panasonic systems
- M-Series WX 17.2k
- Panasonic EXTERIOS Z Series 17.2k 230V
- Panasonic 14.7k model
- Mitsubishi Electric 17.2k model
Previous generation
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- Do mini splits work in cold weather?
- The best cold-climate mini splits of 2026
- The best mini splits for heating of 2026
- Mini split heating capacity in the cold: what your unit actually delivers at 5F
- The mini split defrost cycle, explained
- 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
- Are mini splits worth it?
- Mini split not heating
- Mini split indoor unit freezing up
- Mini split remote not working
- Mini split condensate pump problems
- Mini split Wi-Fi not connecting
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Panasonic ClimaPure XZ Series 18,000 BTU R-32 208/230V (CS-XZ18AKUAW / CU-XZ18AKUAC) myself, or do I need a pro?
- Panasonic ClimaPure XZ Series 18,000 BTU R-32 208/230V (CS-XZ18AKUAW / CU-XZ18AKUAC) 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 Panasonic ClimaPure XZ Series 18,000 BTU R-32 208/230V (CS-XZ18AKUAW / CU-XZ18AKUAC) keep heating in a cold winter?
- The manufacturer publishes 17,800 BTU/h of heating output at 5F. Rated heating operation extends down to -15 F. Certified heating efficiency is 11.7 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 Panasonic ClimaPure XZ Series 18,000 BTU R-32 208/230V (CS-XZ18AKUAW / CU-XZ18AKUAC) need?
- Published electrical requirements: 230 V voltage, 15 A minimum circuit ampacity, and 20 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
- How far can the outdoor unit be from the indoor head?
- The published maximum line-set length is 100 ft, and the included line set comes pre-charged for 25 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.
Data sources
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- Panasonic Corporation of North America: Panasonic ClimaPure XZ Series 18k manufacturer product pageSourced - manufacturer product page
Covers Frequency, Phase, Voltage, Voltage range, Indoor dimensions, Indoor weight and more
- Panasonic Corporation of North America: Panasonic ClimaPure XZ Series 18k system submittalSourced - manufacturer technical document
Covers Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Indoor noise range, Liquid line size, Maximum elevation difference and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 214837755 for CS-XZ18AKUAW / CU-XZ18AKUACSourced - AHRI directory
Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more
- U.S. Environmental Protection Agency: ENERGY STAR exact Panasonic row for CS-XZ18AKUAW / CU-XZ18AKUACSourced - Energy Star listing
Covers Energy Star status
Last updated
Jul 23, 2026