SplitAtlas

Midea / Advantage Series Multi-Zone

Midea Advantage 18k R-454B 208/230V 3-Zone Mini-Split

Certified capacity
18,000 BTU/h[2]
SEER2
25.2 SEER2[2]
Heating floor
-13 F[1]
Voltage
230 V[1]
Install path
Professional install

The Midea Advantage Multi-Zone 3-Zone 18k (D5CMRAH18CAK) is the efficiency leader of our multi-zone catalog. It puts three heads on one R-454B outdoor unit at a certified nominal SEER2 of 25.2 - the highest multi-zone efficiency we list - with EER2 14 and HSPF2 9.8, and it is ENERGY STAR certified and AHRI cold-climate designated.

Cooling is rated at 18,000 BTU, with 47F/17F/5F heating of 19,000/16,000/13,500 BTU. Midea is one of the world's largest HVAC manufacturers and OEMs equipment for many brands.

Dealer-quoted (lead-gen); professional installation required.

3 zonesProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
Midea Advantage Series Multi-Zone 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) mini-split heat pump outdoor condenser

Image: Midea Ductless

Data completeness: 100%
Last sourced
Jul 28, 2026

SplitAtlas score

8.5 / 10

Methodology
Cooling efficiencyTop 10%

(25.2 SEER2) among 18k systems

Heating efficiencyBelow average

(9.8 HSPF2) among 18k systems

Cold-weather performanceBelow average

(71.1% heat retained at 5F; -13 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 & partsTop quartile

(8 manuals; spec sheet; 44 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.

    Get a quote

Key ratings

Rated cooling

18,000BTU/hNon-Ducted Indoor Units[2]

Rated heating

19,000BTU/hNon-Ducted Indoor Units[2]

Buyer review snapshot

Best for / skip if

Best for

  • 3-zone projects in the 18k outdoor capacity class.
  • Top efficiency shortlists; SEER2 is 25.2.

Install difficulty

Professional flared-line install
  • Electrical: 230V; MCA 16 A; 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.

Review methodology

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: -13 F.

Strengths

  • Class-leading efficiency - certified nominal SEER2 25.2, the highest multi-zone in our catalog.
  • Three zones on one R-454B (current low-GWP) outdoor unit; EER2 14, HSPF2 9.8.
  • Midea scale and OEM manufacturing behind the Advantage line.

Weaknesses

  • 18,000 BTU across three zones is modest per room - size each head.
  • Heating tapers in deep cold (13,500 BTU at 5F); for flat deep-cold heating consider the matching High-Heat 3-zone (D5CMHAH18CAK).

Climate suitability

Minimum heating ambient
-13 F[1]
Rated heating at 5F
13,500 BTU/hNon-Ducted Indoor Units[2]
Rated heating at 17F
16,000 BTU/hNon-Ducted Indoor Units[2]
Rated heating at 47F
19,000 BTU/hNon-Ducted Indoor Units[2]

Specifications

Show
Manufacturer
Midea
Brand
Midea
Product line
Advantage Series Multi-Zone
Model number
D5CMRAH18CAK
Indoor unit model
Indoor heads are selected separately on a multi-zone system
Outdoor unit model
D5CMRAH18CAK
Number of zones
3
Max indoor units
3 units[1]
Rated cooling capacity
18,000 BTU/hNon-Ducted Indoor Units[2]
Rated heating capacity
19,000 BTU/hNon-Ducted Indoor Units[2]
Voltage
230 V[1]
MCA
16 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
25.2 SEER2Non-Ducted Indoor Units[2]
EER2
14 EER2Non-Ducted Indoor Units[2]
HSPF2 (Region 4)
9.8 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
2.3 COPNon-Ducted Indoor Units[2]
Minimum outdoor heating temperature
-13 F[1]
Minimum outdoor cooling temperature
-13 F[1]
Maximum outdoor temperature
122 F[1]
Indoor noise range
Indoor heads are selected separately on a multi-zone system
Outdoor noise rating
59.5 dBA[1]
Indoor weight
Indoor heads are selected separately on a multi-zone system
Outdoor weight
100.53 lb[1]
Refrigerant
R-454B[2]
Refrigerant charge
61.76 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
215357421Non-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 215357421, ENERGY STAR exact row 215357421, Midea D5C model-family installation instructions, Midea Advantage Series Multi-Zone Heat Pump current official product page, HVACDirect exact-offer audit for D5CMRAH18CAK, Midea D5CMRA Installation Instructions Table 20 and shared ACiQ/Midea Multi-Zone Service Manual, D5CMRAH18CAK Midea Advantage Series Multi-Zone product data, Midea Advantage Series Multi-Zone Heat Pump warranty summary
Specification sheet
D5CMRAH18CAK Midea Advantage Series Multi-Zone product data
Last sourced date
Jul 28, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
16 A[1]
Breaker needed
not published
Maximum breaker size
20 A[1]
Maximum fuse size
20 A[1]
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
not published

Installation considerations

Show
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
35.04 x 13.46 x 26.5 in[1]
Indoor weight
Indoor heads are selected separately on a multi-zone system
Outdoor weight
100.53 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the Midea Advantage Series Multi-Zone 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) myself, or do I need a pro?
Midea Advantage Series Multi-Zone 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) 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 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) keep heating in a cold winter?
The manufacturer publishes 13,500 BTU/h of heating output at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 9.8 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 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) need?
Published electrical requirements: 230 V voltage, 16 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 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 3-Zone 18,000 BTU R-454B 208/230V (D5CMRAH18CAK) 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

Show
  1. Midea America Corp. / Carrier-family D5CMRA technical data: D5CMRAH36EAK Midea Advantage Series Multi-Zone D5C technical dataSourced - manufacturer technical document

    Covers Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase and more

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 215357421Sourced - AHRI directory

    Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity and more

  3. U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR exact row check for AHRI 215357421Sourced - Energy Star listing

    Covers Energy Star status

  4. Midea America Corp.: Midea Advantage Series Multi-Zone 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