Midea / Advantage Series Multi-Zone High-Heat
Midea Advantage High-Heat 18k R-454B 208/230V 3-Zone Mini-Split
The Midea Advantage Multi-Zone High-Heat 3-Zone 18k (D5CMHAH18CAK) is the cold-climate version of the Advantage three-zone, tuned to hold heating output as temperatures fall. It runs three heads on one R-454B outdoor unit at a certified nominal SEER2 of 25 with EER2 15 and HSPF2 10.5, ENERGY STAR certified and AHRI cold-climate designated.
Cooling is rated at 19,000 BTU, and heating stays essentially flat into deep cold - 20,000 BTU at 47F, 20,000 BTU at 17F, and 19,000 BTU at 5F. That is genuine deep-cold performance: 17F heating matches the 47F rating and 5F barely drops.
Dealer-quoted (lead-gen); professional installation required.
3 zonesProfessional installCurrent
Refrigerant generation
R-454B - current-generation refrigerant
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Image: Midea Ductless
Data completeness: 100%
- Last sourced
- Jul 28, 2026
SplitAtlas score
8.8 / 10
Cooling efficiencyTop 10%
(25.0 SEER2) among 18k systems
Heating efficiencyAbove average
(10.5 HSPF2) among 18k systems
Cold-weather performanceAbove average
(95% heat retained at 5F; -22 F heating floor) among 18k systems
WarrantyBelow average
(5 yr parts / 7 yr compressor) across the catalogue
Feature setTop 10%
(7 verified features) across the catalogue
Documentation & partsBelow average
(7 manuals; spec sheet) 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
- 3-zone projects in the 18k outdoor capacity class.
- Top efficiency shortlists; SEER2 is 25.
Install difficulty
Professional flared-line install
- Electrical: 230V; breaker/fuse 20 A.
- Line set: Flared line connections; max 196.9 ft.
- 3-zone condenser; indoor-head matching and branch layout are part of the job.
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 2026-07-28.
Source date
- Model data sourced
- Jul 28, 2026
- Page reviewed
- Jul 28, 2026
- Source-backed records
- 4
- Newest source retrieved
- Jul 28, 2026
Warranty tiers
Warranty: 5 years parts and 7 years compressor as standard.
Model context
- Install path
- This is professional-install equipment; no verified current retail offer is attached.
- Structured ratings
- Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -22 F.
Strengths
- Cold-climate tuning - heating holds flat, 20,000 BTU at both 47F and 17F.
- Genuine deep-cold output - still 19,000 BTU at 5F.
- High efficiency retained - certified nominal SEER2 25, EER2 15, HSPF2 10.5.
- ENERGY STAR certified and AHRI cold-climate designated on R-454B.
Weaknesses
- Costs a bit more than the standard Advantage 3-zone for the cold-climate tuning.
- 19,000 BTU cooling across three zones is modest per room - size each head.
Climate suitability
- Minimum heating ambient
- -22 F[1]
- Rated heating at 5F
- 19,000 BTU/hNon-Ducted Indoor Units[2]
- Rated heating at 17F
- 20,000 BTU/hNon-Ducted Indoor Units[2]
- Rated heating at 47F
- 20,000 BTU/hNon-Ducted Indoor Units[2]
Specifications
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- Manufacturer
- Midea
- Brand
- Midea
- Product line
- Advantage Series Multi-Zone High-Heat
- Model number
- D5CMHAH18CAK
- Indoor unit model
- Indoor heads are selected separately on a multi-zone system
- Outdoor unit model
- D5CMHAH18CAK
- Number of zones
- 3
- Max indoor units
- 3 units[1]
- Rated cooling capacity
- 19,000 BTU/hNon-Ducted Indoor Units[2]
- Rated heating capacity
- 20,000 BTU/hNon-Ducted Indoor Units[2]
- Voltage
- 230 V[1]
- MCA
- not published - manufacturer specifies 20 A breaker
- Maximum fuse or breaker size
- 20 A[1]
- Breaker needed
- 20 A[1]
- SEER2
- 25 SEER2Non-Ducted Indoor Units[2]
- EER2
- 15 EER2Non-Ducted Indoor Units[2]
- HSPF2 (Region 4)
- 10.5 HSPF2Non-Ducted Indoor Units[2]
- HSPF2 (Region 5)
- Certified per indoor-unit combination, not per outdoor unit
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 2 COPNon-Ducted Indoor Units[2]
- Minimum outdoor heating temperature
- -22 F[1]
- Minimum outdoor cooling temperature
- -22 F[1]
- Maximum outdoor temperature
- 122 F[1]
- Indoor noise range
- Indoor heads are selected separately on a multi-zone system
- Outdoor noise rating
- 61.5 dBA[1]
- Indoor weight
- Indoor heads are selected separately on a multi-zone system
- Outdoor weight
- 137.35 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- 78.24 oz[1]
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in x 3 liquid / 3/8 in x 3 suction
- Included line-set length
- Indoor heads are selected separately on a multi-zone system
- Maximum line-set length
- 196.9 ft[1]
- Max line set per indoor
- 98.4 ft[1]
- Maximum elevation difference
- 49.21 ft[1]
- Max height between indoor units
- 33 ft[1]
- Wi-Fi support
- Indoor heads are selected separately on a multi-zone system
- Energy Star status
- ENERGY STAR certified[3]
- AHRI certification number
- 215357400Non-Ducted Indoor Units[2]
- Warranty
- Standard: 5 yr parts / 7 yr compressor (published limited warranty terms). 7-year compressor / 5-year parts limited warranty
- 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 2026-07-28.
- Available retailers
- not published
- Manual links
- AHRI public detail 215357400, ENERGY STAR exact row 215357400, Midea D5C model-family installation instructions, Midea Advantage Series Multi-Zone High-Heat Heat Pump current official product page, HVACDirect exact-offer audit for D5CMHAH18CAK, D5CMHAH18CAK Midea Advantage Series Multi-Zone High-Heat product data, Midea Advantage Series Multi-Zone High-Heat Heat Pump warranty summary
- Specification sheet
- D5CMHAH18CAK Midea Advantage Series Multi-Zone High-Heat product data
- Last sourced date
- Jul 28, 2026
Electrical requirements
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Installation considerations
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- Liquid line
- 1/4 in x 3[1]
- Suction line
- 3/8 in x 3[1]
- Line connection type
- Flared line connections[1]
- Precharged length
- not published
- Included line-set length
- Indoor heads are selected separately on a multi-zone system
- Maximum line-set length
- 196.9 ft[1]
- Max line set per indoor
- 98.4 ft[1]
- Max height between indoor units
- 33 ft[1]
- Indoor dimensions
- Indoor heads are selected separately on a multi-zone system
- Outdoor dimensions
- 37.24 x 16.14 x 31.89 in[1]
- Indoor weight
- Indoor heads are selected separately on a multi-zone system
- Outdoor weight
- 137.35 lb[1]
- Drain size
- not published
Related systems and guides
- More Midea systems
- Klimaire KMHR Hyper Heat Series 19k 230V
- Senville 230 V option
- Midea 230 V option
- Midea 24k model
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- Do mini splits work in cold weather?
- Midea mini split review: is Midea any good?
- The best multi-zone mini splits of 2026
- The best 3-zone mini splits of 2026
- How to size a multi-zone mini split
- Not every multi-zone condenser lets you mix head types
- How much does a multi-zone mini split cost?
- 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
- One room won't heat or cool on a multi-zone mini split
- Mini split not heating
- Mini split indoor unit freezing up
- Mini split Wi-Fi not connecting
- Mini split making loud noise
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Midea Advantage Series Multi-Zone High-Heat 3-Zone 18,000 BTU R-454B 208/230V (D5CMHAH18CAK) myself, or do I need a pro?
- Midea Advantage Series Multi-Zone High-Heat 3-Zone 18,000 BTU R-454B 208/230V (D5CMHAH18CAK) 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 Midea Advantage Series Multi-Zone High-Heat 3-Zone 18,000 BTU R-454B 208/230V (D5CMHAH18CAK) keep heating in a cold winter?
- The manufacturer publishes 19,000 BTU/h of heating output at 5F. Rated heating operation extends down to -22 F. Certified heating efficiency is 10.5 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 Midea Advantage Series Multi-Zone High-Heat 3-Zone 18,000 BTU R-454B 208/230V (D5CMHAH18CAK) need?
- Published electrical requirements: 230 V voltage, not published - manufacturer specifies 20 A breaker 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 196.9 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.
- What warranty does the Midea Advantage Series Multi-Zone High-Heat 3-Zone 18,000 BTU R-454B 208/230V (D5CMHAH18CAK) carry?
- The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 7 yr compressor (published limited warranty terms). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
Data sources
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- Midea America Corp. / Viessmann US D5CMHA technical data: D5CMHAH36EAK Midea Advantage Series Multi-Zone High-Heat D5C technical dataSourced - manufacturer technical document
Covers Breaker needed, Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Maximum fuse size, Phase and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 215357400Sourced - AHRI directory
Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity and more
- U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR exact row check for AHRI 215357400Sourced - Energy Star listing
Covers Energy Star status
- Midea America Corp.: Midea Advantage Series Multi-Zone High-Heat Heat Pump current official product pageSourced - manufacturer product page
Covers Legacy compressor warranty value, Legacy warranty value, Standard compressor warranty, Standard warranty conditions, Standard parts warranty, Warranty notes
Last updated
Jul 28, 2026