SplitAtlas

Senville / AURA Multizone

Senville AURA Multizone 18k R-454B 208/230V 3-Zone Mini-Split

Certified capacity
19,000 BTU/h[3]
SEER2
25 SEER2[3]
Heating floor
-22 F[1]
Voltage
230 V[1]
Install path
Professional install

The Senville AURA Multizone 3-Zone 18k (SENA-18HF-MOA) is a value cold-climate three-zone built to hold its heating output as temperatures drop rather than fade. It posts a certified nominal SEER2 of 25, EER2 15, and HSPF2 10.4, and its heating holds flat from 20000 BTU at 47F to 20000 at 17F before easing only slightly to 19000 at 5F - essentially full output deep into the cold.

It runs on current low-GWP R-454B refrigerant, is ENERGY STAR certified, and is AHRI cold-climate designated. Senville is a popular value ductless brand whose AURA line is well known online, delivering genuine inverter cold-climate performance below the premium names.

Professional installation is required and units are dealer-quoted.

3 zonesProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) multi-zone mini-split heat pump outdoor condenser

Image: Senville

Data completeness: 97%
Last sourced
Jul 28, 2026

SplitAtlas score

9.2 / 10

Methodology
Cooling efficiencyTop 10%

(25.0 SEER2) among 18k systems

Heating efficiencyTop quartile

(10.4 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 / 10 yr compressor) across the catalogue

Feature setTop quartile

(6 verified features) across the catalogue

Documentation & partsTop quartile

(7 manuals; spec sheet; parts channel) 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

19,000BTU/hNon-Ducted Indoor Units[3]

Rated heating

20,000BTU/hNon-Ducted Indoor Units[3]

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; MCA 17.5 A; breaker/fuse 20 A.
  • Line set: Flared line connections; precharged 75 ft; max 196.8 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 10 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, ENERGY STAR cold-climate certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -22 F.

Strengths

  • Heating holds in the cold: 20000 BTU at 47F stays 20000 at 17F, then 19000 at 5F.
  • Certified nominal SEER2 25 / EER2 15 / HSPF2 10.4, ENERGY STAR certified.
  • AHRI cold-climate designated on current R-454B refrigerant.
  • Strong value - cold-climate heating that holds, below premium pricing.

Weaknesses

  • Sits below the top premium brands on brand and dealer-network support.
  • 19000-20000 BTU across three zones is modest per room; size each head.
  • Multi-zone part-load penalty when a single zone runs alone.

Climate suitability

Minimum heating ambient
-22 F[1]
Rated heating at 5F
19,000 BTU/hNon-Ducted Indoor Units[3]
Rated heating at 17F
20,000 BTU/hNon-Ducted Indoor Units[3]
Rated heating at 47F
20,000 BTU/hNon-Ducted Indoor Units[3]

Specifications

Show
Manufacturer
Senville
Brand
Senville
Product line
AURA Multizone
Model number
SENA-18HF-MOA
Indoor unit model
Indoor heads are selected separately on a multi-zone system
Outdoor unit model
SENA-18HF-MOA
Number of zones
3
Max indoor units
3 units[2]
Rated cooling capacity
19,000 BTU/hNon-Ducted Indoor Units[3]
Rated heating capacity
20,000 BTU/hNon-Ducted Indoor Units[3]
Voltage
230 V[1]
MCA
17.5 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
25 SEER2Non-Ducted Indoor Units[3]
EER2
15 EER2Non-Ducted Indoor Units[3]
HSPF2 (Region 4)
10.4 HSPF2Non-Ducted Indoor Units[3]
HSPF2 (Region 5)
Certified per indoor-unit combination, not per outdoor unit
COP
not published
COP at 47F
4 COP[1]
COP at 5F
2 COPNon-Ducted Indoor Units[3]
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[3]
Refrigerant charge
78.31 oz[1]
Manufacturer coverage
not published
Line-set size
3 x 1/4 in liquid / 3 x 3/8 in suction
Included line-set length
Indoor heads are selected separately on a multi-zone system
Maximum line-set length
196.8 ft[1]
Max line set per indoor
98.4 ft[2]
Maximum elevation difference
49.2 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[4]
AHRI certification number
215735311Non-Ducted Indoor Units[3]
Warranty
Standard: 5 yr parts / 10 yr compressor (registration/professional-installation terms). 10-year compressor, 5-year parts warranty with registration/professional-installation terms.
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 215735311, ENERGY STAR exact row 215735311, Senville Multi Zone Series installation and service manuals support page, Senville AURA Multizone official outdoor product page for SENA-18HF-MOA, Senville multi-zone condenser ports and pre-charge support article, HVACDirect exact-offer audit for SENA-18HF-MOA, Senville AURA Multizone official kit specification page for SENA-18HF-MOA
Specification sheet
Senville AURA Multizone official kit specification page for SENA-18HF-MOA
Last sourced date
Jul 28, 2026

Compatible indoor units

This is an outdoor unit. You choose its indoor heads separately - up to the maximum this condenser supports - and you can mix room sizes and styles across the zones. The models below are the heads this unit is documented to pair with.

  • Concealed ducteds

    9k, 12k, 18k

    Model numbers
    • 9k: SENA-09HF-IDG
    • 12k: SENA-12HF-IDG
    • 18k: SENA-18HF-IDG

  • Four-way ceiling cassettes

    9k, 18k

    Model numbers
    • 9k: SENA-09HF-ICG
    • 18k: SENA-18HF-ICG

  • One-way ceiling cassettes

    6k, 9k, 12k, 18k

    Model numbers
    • 6k: SENA-06HF-1WCG
    • 9k: SENA-09HF-1WCG
    • 12k: SENA-12HF-1WCG
    • 18k: SENA-18HF-1WCG

Sizing note: do not just add up the rooms. Multi-zone condensers have a maximum total connected capacity, and connecting more head capacity than the unit is rated for is a common installer mistake that hurts efficiency and comfort. Match total head capacity to the condenser's rating.

Parts and filters

Fits Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA). Part numbers and fit notes identify compatibility only; no manufacturer endorsement is implied.

line-set-installation-kit

25 ft flared line-set installation kit - 1/4 x 3/8

Fits
Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA)
OEM part number
PJX-1-75E
Fit note
Fits SENA-18HF-MOA. Indoor heads are selected separately on this AURA Multizone condenser; order one kit per matching port/head. Use this size for 6k, 9k, and 12k Senville indoor units or matching multizone ports. Senville sells the PJX-1-75E line set directly; HVACDirect was verified as a live exact-dimension 25 ft install-kit page on 2026-08-01. First-party path: https://senville.com/25-ft-insulated-line-set-1-4-and-3-8/.
Source
Senville 25 Ft. Insulated Line Set - 1/4 and 3/8, Technical Specifications, page product page (SKU | PJX-1-75E)

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Paid link

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Replacement Parts & Filters

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
17.5 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
3 x 1/4 in[1]
Suction line
3 x 3/8 in[1]
Line connection type
Flared line connections[1]
Precharged length
75 ft[2]
Included line-set length
Indoor heads are selected separately on a multi-zone system
Maximum line-set length
196.8 ft[1]
Max line set per indoor
98.4 ft[2]
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

Frequently asked questions

Can I install the Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) myself, or do I need a pro?
Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) 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 Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) 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 10.4 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 Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) need?
Published electrical requirements: 230 V voltage, 17.5 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 196.8 ft, and the included line set comes pre-charged for 75 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 Senville AURA Multizone 3-Zone 18,000 BTU R-454B 208/230V (SENA-18HF-MOA) carry?
The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 10 yr compressor (registration/professional-installation terms). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Senville: Senville AURA Multizone official product-page evidence for SENA-36HF-MOASourced - manufacturer product page

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

  2. Senville: Senville multi-zone condenser ports and pre-charge support articleSourced - manufacturer product page

    Covers Precharged length, Max indoor units, Max line set per indoor

  3. Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 215735311Sourced - AHRI directory

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

  4. U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR exact row check for AHRI 215735311Sourced - Energy Star listing

    Covers performance_spec.energy_star_cold_climate, Energy Star status

Last updated

Jul 28, 2026