Cooper & Hunter 12,000 BTU Indoor Slim Duct, 230V, R410A - Ducted Mini Split Air Conditioner Heat Pump

Cooper & Hunter7-Yr Warranty

CH-M12DTUI
Product specifications
Brand Cooper & Hunter
Voltage 230V
SEER 20.5
WiFi Not Included
Type Slim Duct
Freon R410A
Compressor Inverter
$558.00 Sold out
Shipping Policy calculated at checkout.

Wait! This is an Individual Component To build a working system, this unit must match your other equipment in two ways:

  • Same Brand Only: Only pair with other same Brand and Series.
  • Same Refrigerant: Both units must use the exact same gas type (R454B, R32, or R410A).

Mixing different brands or refrigerant types will cause the system to fail and void your warranty.

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Questions about this system?

Answers in seconds — tap a question below

  • Sized for about the room's square footage at ~20 BTU per sq ft. Rule of thumb: ~20 BTU per sq ft, and 12,000 BTU = 1 ton (this unit is 12,000 BTU (1-ton)). Ceiling height, insulation, sun and climate shift that — if you're between sizes, size up for hot/humid rooms. Not sure? We'll confirm the right BTU for your space.
  • 12,000 BTU = 1 ton — "tons" is just the older way of stating capacity. So 24,000 BTU = 2 tons, 36,000 = 3 tons, and so on. This system is 12,000 BTU (1-ton). BTU tells you the capacity; SEER2 tells you the efficiency.
  • It uses R410A — a proven, widely serviced refrigerant. The outdoor unit ships pre-charged for a standard line set, so most installs need no extra refrigerant; your licensed, EPA-608-certified installer verifies the charge and tops it off if your line set is longer.
  • Rated SEER2 20.5 — a strong efficiency number, and the higher it is the lower your energy bills. Its inverter compressor ramps up and down instead of cycling on/off, so it holds the temperature steadily, runs quietly, and uses less power than a standard AC or window unit.
  • Needs a dedicated 230V circuit, like a large household appliance, so it can deliver full capacity to larger rooms and multi-zone setups. Your licensed HVAC installer or electrician sets up the correct breaker and disconnect to meet local electrical code.
  • Yes — a big upgrade. It's far more efficient (inverter, SEER2 20.5) and much quieter, since the compressor sits outside instead of in your window or on the floor. It mounts permanently, doesn't block a window, and heats as well as cools year-round. Higher upfront cost, but lower bills and a longer lifespan.
  • Yes to all three. It's an inverter heat pump — cools in summer, heats in winter (even in the cold), far more efficiently than electric heaters. A Dry mode also pulls out humidity, so rooms feel cooler and less muggy.
  • Yes — WiFi is not included, so you can set schedules, change the temperature, and even turn it on before you get home, all from the mobile app (and pair it with voice assistants). A standard remote is included too.
  • Ships as a complete set: CH-12MOLVWM-230VI. Everything arrives together — check the photos and specs for the full kit.
  • It should be installed by a licensed, EPA-608-certified HVAC professional — we don't recommend DIY installation. Handling refrigerant requires EPA Section 608 certification under U.S. law, and professional installation keeps the system safe, code-compliant, and your manufacturer warranty valid.
  • Yes — you get full inverter heat-pump technology and the same core features as premium brands without paying for the name, which is how we keep prices low. Shipping is free on U.S. orders over $300, and our team can help with sizing and support.
Hurry to buy! Get your mini-split system with R-410A refrigerant (offer valid until November 27)
Important info
  • R-410A is being phased down in favor of newer refrigerants; inventory is limited.
  • Existing R-410A systems remain serviceable; parts and qualified service are widely available.
  • Check local codes and rebates. Some incentives prioritize high-efficiency heat pumps (R-32/R-454B).
  • We stock both R-410A and next-gen options—choose what fits your timeline and budget.
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Why buy this mini split from MiniSplitsForLess

  • Free Shipping over $300Ships free to the lower 48 states — flat rate, no surprises at checkout.
  • USA-Based Expert SupportReal U.S. HVAC pros help with BTU sizing, refrigerant and install questions.
  • Genuine Units & Full WarrantyBrand-new, authorized-dealer equipment backed by the full manufacturer warranty.
  • Fast Nationwide ShippingIn stock and ready to ship from U.S. warehouses across all 48 states.

What Stands Out

Multi-Position Air Handler

Installs in upflow, downflow or horizontal orientation to fit a closet, attic or utility room, delivering ducted 12000 BTU comfort to the whole home.

Inverter Efficiency — SEER2 20.5

A variable-speed inverter compressor ramps to match the load instead of cycling on/off, holding SEER2 20.5 on 230V — steady comfort with noticeably lower energy bills.

Smart Wi-Fi Control

Wi-Fi is not included — set schedules and adjust the temperature from your phone anywhere, or pair with Alexa & Google Home.

Multi-Position Air Handler

Engineered for flexibility and designed for performance, the Cooper&Hunter Multi-Position Air Handler delivers reliable comfort in a wide range of residential and light commercial applications. Whether installed in upflow, downflow, or horizontal configurations, this unit adapts seamlessly to your space while maintaining optimal efficiency and quiet operation.

Built with Cooper&Hunter’s commitment to innovation, the Multi-Position Air Handler offers advanced airflow management, durable construction, and compatibility with high-efficiency heat pump systems.

Its sleek, compact design allows for easy installation, while the smart control options ensure user-friendly operation and precision climate control.

Multi-position air handler gray box with checkmark shield logo on front

Warranty and Tech Support Info

By selecting Cooper&Hunter products for your home or business, you’ll receive expert technical support from heating and cooling specialists, including product manuals, troubleshooting guides, and warranty information.

Warranty terms: The manufacturer provides a Limited Warranty of 7 years for the compressor and 5 years for parts.

Warranty terms
White air conditioning unit with black fan and copper tubing design.

Energy Efficiency

Cooper&Hunter’s Inverter Technology maximizes efficiency and reduces energy costs by adjusting the compressor speed to your specific needs. Experience unparalleled comfort, quieter operation, and longer equipment lifespan. Choose Cooper&Hunter for cutting-edge HVAC solutions that deliver optimal performance and reliability.

Modern wooden dollhouse with glass windows and a gray roof.

Main Features

The Cooper&Hunter Multi-Position Air Handler offers flexible installation in upflow, downflow, or horizontal configurations. Designed for quiet, efficient performance, it features a high-performance blower, durable insulated cabinet, and smart control compatibility—making it an ideal solution for reliable, customizable comfort in residential or light commercial settings.

Technical Specifications

INDOOR MODEL

Indoor Model CH-M18AHU CH-M24AHU CH-36AHU CH-48AHU CH-M18AHU CH-M24AHU CH-36AHU CH-48AHU CH-60AHU
Power Supply Rated (V, Ph, Hz) 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230V,1Ph 60Hz 208/230V,1Ph 60Hz 208/230,1,60 208/230,1,60 208/230V,1Ph 60Hz
Cooling - Rated Capacity (Btu/h) 18,000 24,000 36,000 48,000 18,000 24,000 36,000 48,000 60,000
Minimum Circuit Ampacity (MCA) (A) 3 4 5 7.5 3 4 5 7.5 9
Max. Fuse (A) 15 15 15 15 15 15 15 15 15
Indoor Air Flow (Hi/Mi/Lo) (CFM) 576/529/488 759/694/629 1840/1650/1470 2180/1860/1540 576/529/488 759/694/629 1,082/970/865 1,282/1,094/906 1,582/1,359/1,135
Indoor Noise Level (Hi/Mi/Lo) (dB(A)) 39/37/35 41/39/38 47/42/40 53/47/43 38/35/34 42/40/38 50/45/42 51/48/45 51/47/45
Dimension (W×D×H) (inch) 17.52×21.02×45 17.52×21.02×45 21.02×21.02×49.02 21.02×21.02×49.02 17.52×21.02×45 17.52×21.02×45 21.02×21.02×49.02 21.02×21.02×49.02 21.02×24.49×52.99
Packing (W×D×H) (inch) 20.87×26.57×48.62 20.87×26.57×48.62 24.41×26.57×52.56 24.41×26.57×52.56 20.87×26.57×48.62 20.87×26.57×48.62 24.41×26.57×52.56 24.41×26.57×52.56 26.77×27.95×56.5
Net/Gross Weight (lbs.) 107/127 107/127 129/153 132/155 107/127 107/127 130/153 132/156 164/190
Room Temperature - Cooling (°F) 60~90 60~90 60~90 60~90 60~90 60~90 60~90 60~90 60~90
Room Temperature - Heating (°F) 32~86 32~86 32~86 32~86 32~86 32~86 32~86 32~86 32~86
Refrigerant Piping (Liquid Side/Gas Side) (inch) 1/4"/1/2" 3/8"/5/8" 3/8"/5/8" 3/8"/5/8" 1/4"/1/2" 3/8"/5/8" 3/8"/5/8" 3/8"/5/8" 3/8"/7/8"

OUTDOOR MODEL REGULAR

Specification CH-ES09-230V0 CH-ES12-230V0 CH-ES18-230V0 CH-ES24-230V0 CH-N36LCU-230V0 CH-N48LCU-230V0 CH-N60LCU-230V0
Power Supply Rated (V, Ph, Hz) 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60
Voltage Range (V) 187-253 187-253 187-253 187-253 187-253 187-253 187-253
Cooling - Rated Capacity Range (Btu/h) 2,220~11,600 2,100~13,450 5,800~18,000 6,100~28,200 8,900~36,000 10,500~48,000 12,000~62,000
Cooling - Rated Current (A) 4.8 4.38 6.17 8.5 18.63 24.5 25
Cooling - EER2 (Btu/h) 12.5 11.7 12.5 12.5 8.8 8.5 10.3
Cooling - SEER2 (Btu/h) 19.2 19 20 19 15.8 15.1 17
Heating - Rated Capacity Range (Btu/h) 2,240~13,350 1,900~15,000 5,000~20,000 11,700~33,000 12,700~40,000 11,000~63,400 12,000~60,000
Heating - Rated Current (A) 3.7 4.78 7.90 9.3 15.4 20.5 22
Heating at 47°F - COP (W/W) 3.62 3.52 3.12 3.61 3.3 3.19 3.52
Heating at 47°F - HSPF4 10.2 10.3 10.6 11.2 8.8 9.3 8.4
Heating at 47°F - HSPF5 8 7.8 8.2 8.8 7 7.3 6.5
Minimum Circuit Ampacity (A) 13 13 19 22 30 39 39
Max.Fuse (Outdoor Unit) (A) 15 15 30 30 45 50 50
Outdoor Air Flow (Max.) (CFM) 1,294 1,294 2,059 2,235 3,000 4,500 2,647
Outdoor Noise Level (Sound Pressure) (dB(A)) 55 53.5 60 59 65 63.5 62.5
Dimension (W×D×H) (inch) 30.12×11.93×21.85 30.12×11.93×21.85 35.04×13.46×26.50 37.24×16.14×31.89 37.24×16.14×31.89 37.48×16.34×52.48 37.48×16.34×52.48
Packing (W×D×H) (inch) 34.92×13.27×24.02 34.92×13.27×24.02 39.17×15.67×29.13 42.91×19.69×34.84 42.91×19.69×34.84 43.11×19.49×58.27 43.11×19.49×58.27
Net/Gross Weight (lbs.) 63.71/69.00 63.71/69.00 94.36/100.97 124.78/134.92 155.42/166.23 219.14/249.12 217.15/248.24
Refrigerant Type / Charge (oz.) R410A / 38 R410A / 38 R410A / 56.44 R410A / 82.89 R410A / 112.9 R410A / 158.7 R410A / 169.3
Refrigerant Precharge Length (ft.) 25 25 25 25 25 25 25
Additional Charge for Each ft. (oz/ft) 0.16 0.16 0.16 0.32 0.32 0.32 0.32
Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340 550/340 550/340
Refrigerant Piping (Liquid Side/Gas Side) (inch) 1/4"/3/8" 1/4"/1/2" 1/4"/1/2" 3/8"/5/8" 3/8"/5/8" 3/8"/5/8" 3/8"/7/8"
Max. Pipe Length (ft.) 82.02 82.02 98.42 164.04 213.25 213.25 213.25
Max. Difference in Level (ft.) 32.81 32.81 65.62 82.02 98.42 98.42 98.42
Ambient Temperature - Cooling (°F) -13~122 -13~122 -13~122 -13~122 5~122 5~122 5~122
Ambient Temperature - Heating (°F) -13~75 -13~75 -13~75 -13~75 -13~75 -13~75 -13~75
Certifications UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA

OUTDOOR MODEL HYPER

Specification CH-HPR09-230V0 CH-HPR12-230V0 CH-HPR18-230V0 CH-HPR24-230VO CH-NHPR36LCU-230VO CH-NHPR48LCU-230VO CH-NHPR60LCU-230V0
Power Supply Rated (V, Ph, Hz) 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60
Voltage Range (V) 187-253 187-253 187-253 187-253 187-253 187-253 187-253
Cooling - Rated Capacity Range (Btu/h) 2,400~12,500 2,250~14,400 6,500~18,800 6,500~27,800 9,770~41,600 10,300~53,100 12,000~59,000
Cooling - Rated Current (A) 4.7 4.22 9.32 8.52 17.5 26 26
Cooling - EER2 (Btu/h) 13.2 11.7 11.7 12 9 8.2 9.4
Cooling - SEER2 (Btu/h) 20.2 19.5 18 19.2 16.5 14.3 15.8
Heating - Rated Capacity Range (Btu/h) 1,700~15,600 1,800~16,300 8,900~22,000 12,200~32,200 12,700~52,000 11,500~63,600 12,000~63,600
Heating - Rated Current (A) 4.0 4.58 11.5 8.19 16.9 20.5 22.5
Heating at 47°F - COP (W/W) 3.37 3.56 2.93 3.3 3.33 3.28 3.24
Heating at 47°F - HSPF4 9.5 10 9.5 10.5 10.3 9.5 8.8
Heating at 47°F - HSPF5 7.5 8.2 7.5 8.8 8.4 7.8 6.5
Minimum Circuit Ampacity (A) 15 15 20 25 40 40 44
Max.Fuse (Outdoor Unit) (A) 15 15 25 35 50 50 60
Outdoor Air Flow (Max.) (CFM) 1,324 1,324 1,765 2,235 4,500 4,500 4,235
Outdoor Noise Level (Sound Pressure) (dB(A)) 54 52 59 62 65 65 60.5
Dimension (W×D×H) (inch) 31.69×12.99×21.81 31.69×12.99×21.81 35.04×13.46×26.50 37.24×16.14×31.89 37.48×16.34×52.48 37.48×16.34×52.48 37.48×16.34×52.48
Packing (W×D×H) (inch) 36.02×14.57×24.21 36.02×14.57×24.21 39.17×15.67×29.13 42.91×19.69×34.84 43.11×19.49×58.27 43.11×19.49×58.27 43.11×19.49×58.27
Net/Gross Weight (lbs.) 74.07/80.25 73.63/79.37 100.97/108.03 134.48/144.40 220.24/248.02 227.07/255.73 240.74/271.61
Refrigerant Type / Charge (oz.) R410A / 41.62 R410A / 41.62 R410A / 65.26 R410A / 91.71 R410A / 148.4 R410A / 148 R410A / 169
Refrigerant Precharge Length (ft.) 25 25 25 25 25 25 25
Additional Charge for Each ft. (oz/ft) 0.16 0.16 0.16 0.32 0.32 0.32 0.32
Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340 550/340 550/340
Refrigerant Piping (Liquid Side/Gas Side) (inch) 1/4"/3/8" 1/4"/1/2" 1/4"/1/2" 3/8"/5/8" 3/8"/5/8" 3/8"/5/8" 3/8"/7/8"
Max. Pipe Length (ft.) 82.02 82.02 98.42 164.04 213.25 213.25 213.25
Max. Difference in Level (ft.) 32.81 32.81 65.62 82.02 98.42 98.42 98.42
Ambient Temperature - Cooling (°F) -22~122 -22~122 -22~122 -22~122 5~122 5~122 5~122
Ambient Temperature - Heating (°F) -22~75 -22~75 -22~75 -22~75 -22~75 -22~75 -22~75
Certifications UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA UL, ETL, AHRI, Energy Star, NEEP, CSA

Multiple Control Methods

Cooper&Hunter’s Slim Duct Unit can be managed with a user-friendly remote control, the wall thermostat or the Cooper&Hunter optional phone application. This options offer precise temperature adjustments and optimal climate control for ultimate convenience.

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Frequently Asked Questions

What size mini split do I need for my space?

For a room size coverage of up to 550 sq ft, the Cooper & Hunter 12,000 BTU mini split is an excellent choice. This capacity is ideal for medium-sized rooms, ensuring efficient heating and cooling.

Can I install a mini split myself?

While some homeowners may attempt DIY installation, it's recommended to hire a professional for the Cooper & Hunter 12,000 BTU system. Proper installation is crucial to optimize its 20.5 SEER efficiency and overall performance.

Does the mini split come pre-charged with refrigerant?

Yes, the Cooper & Hunter mini split is pre-charged with R410A refrigerant for up to 25 ft of line set, making installation easier. This ensures optimal performance right from the start.

What voltage does a mini split require?

The Cooper & Hunter 12,000 BTU mini split operates on 230V, which is standard for most residential applications. Ensure your electrical system can accommodate this voltage for safe and effective operation.

What warranty does Cooper & Hunter offer?

The Cooper & Hunter mini split comes with a comprehensive warranty of 5 years on parts and 7 years on the compressor, provided you register within 30 days of purchase. This coverage offers peace of mind for your investment.

What is the SEER rating and why is it important?

The Cooper & Hunter 12,000 BTU mini split features an impressive SEER rating of 20.5, indicating high energy efficiency. A higher SEER rating translates to lower energy bills and reduced environmental impact, making it a smart choice for your home.