Cooper & Hunter 18,000 BTU Indoor Single/Multi Zone Air Handler, 230V, R454B - Ducted Mini Split Air Conditioner Heat Pump | No Kit

Cooper & Hunter7-Yr Warranty

CH-RS18MAHU-NO
Product specifications
SEER 19.7
Compressor Inverter
Brand Cooper & Hunter
Voltage 230V
WiFi Not Included
Type Air Handler
Freon R454B
$1,438.56
Shipping Policy calculated at checkout.
Installation Kit: No Installation Kit

⛔ 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.

Availability

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For the next arrival, call (855) 775-4822.

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FREE shipping to We don’t ship to .Pick up at Medley, FL ·

9400 Northwest 104th Street, Suite 150, Medley, FL 33178

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Cooper & Hunter 18,000 BTU Indoor Single/Multi Zone Air Handler, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpNo Installation Kit · Qty 1

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Questions? (855) 775-4822

Mon–Fri 9–5 ET

Delivery dates are estimates

Please note that all delivery dates and estimated transit times are approximate and are not guaranteed. Delivery times may vary due to carrier delays, weather, holidays, peak shipping periods, or other circumstances beyond our control. How delivery dates are calculated

Questions about this system?

Answers in seconds — tap a question below

  • Up to about 800 sq ft at average conditions. We size at about 22 BTU per sq ft, more conservative than the ENERGY STAR room-size chart. Add capacity for a hot climate, ceilings over 8 ft, strong sun (+10%), a kitchen (+4,000 BTU) or each person over two (+600 BTU). For a room-by-room load calculation, ask your installer for an ACCA Manual J. Not sure? Call (855) 775-4822 and we'll confirm the right size 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 18,000 BTU (1.5-ton). BTU tells you the capacity; SEER2 tells you the efficiency.
  • It uses R454B — the newest low-GWP eco refrigerant, so it's future-proof and efficient. 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 19.7 — 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 19.7) 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-RS18MAHU. 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 items over $300 within the U.S., and our team can help with sizing and support.

Bulk savings

Up to 8% off full-price Cooper & Hunter, OLMO and accessories.

Bulk pricing covers complete systems and accessories. Indoor or outdoor units bought on their own aren't included.

Tiers · Cooper & Hunter, OLMO & accessories

    How it works

    1. Add full-price systems or accessories.
    2. Reach $5,000 in one order.
    3. Your cart adds the code for you.

    What counts

    • Counts: Full-price Cooper & Hunter and OLMO systems, accessories
    • Doesn't count: Sale items, indoor or outdoor units sold on their own, parts
    • BRAVO counts toward its own tiers (5–15% off).

    Building a system? Call (855) 775-4822

    Best brands with the best deals

    Why buy this mini split from MiniSplitsForLess

    • Free Shipping on items 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 18000 BTU comfort to the whole home.

    Inverter Efficiency — SEER2 19.7

    A variable-speed inverter compressor ramps to match the load instead of cycling on/off, holding SEER2 19.7 on 230V — steady comfort with noticeably lower energy bills.

    Right-Sized Coverage

    Heats & cools up to about 800 sq ft at average conditions (about 22 BTU per sq ft).

    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 Unit Specs

    Indoor Unit Specs — CH-RS18MAHU
    ModelCH-RS18MAHU
    Unit Dimensions (WxDxH)17.52 x21.02 x 45 in
    Net/Gross Weight104.72/125.66 lb
    Packing Dimensions (WxDxH)20.87 x 26.57 x 48.62 in
    Power Supply208-230V, 1Ph, 60Hz
    Maximum Fuse Size15 A
    Min. Circuit Ampacity3.5 A
    Copper Line Size (Liquid/Gas)1/4"/1/2"
    Noise Level (Hi/Med/Lo)42.5/37.5/30 dB
    Dehumidification3.57 pt/h
    Drain Pipe Diameter3/4"
    Controllerwire controller + remote controller available

    System Specs

    System Specs
    Cooling Capacity 18,000 BTU
    SEER2 19.7
    Voltage 230V
    Refrigerant Type R454B
    Compressor Inverter
    WiFi Not Included

    Series Comparison Table

    Technical specifications for every model in the series — this product is one of them.

    Indoor Model CH-RS18MAHU CH-RS24MAHU CH-RS36LCAHU CH-RS48LCAHU CH-RS60LCAHU
    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
    Cooling
    Rated Capacity (Btu/h) 18,000 23,000 36,000 48,000 54,000
    Rated Current (A) 9.1 8.7 13.4 22 24
    Heating
    Rated Capacity (Btu/h) 19,500 26,000 38,000 50,000 59,000
    Rated Current (A) 9.5 9.7 14.3 19 21.8
    Minimum Circuit Ampacity (MCA) (A) 3.5 4 5 7.5 9
    Max. Fuse (A) 15 15 15 15 15
    Indoor Air Flow (Turbo/Hi/Mi/Lo/Si) (CFM) 618.0/576.8/529.7/488.5/ N/A 824.0/759.3/694.5/629.8/- 1189/1083/971.2/865.2/ N/A 1601/1471.5/1283.1/1094.8// 1807/1553.9/1353.8/724/ N/A
    Indoor Noise Level (Turbo/Hi/Mi/Lo/Si) (dB(A)) N/A/42.5/37.5/30.0/N/A N/A/43.5/40/25.5/N/A N/A/47/42/30.5/N/A 56.5/54.5/51/48// N/A/53.0/48.0/33.5/N/A
    ESP (Range) 0-0.8 0-0.8 0-0.8 0-0.8 0-0.8
    Indoor
    Dimension (WxDxH) (inch) 17.52x21.02x45.00 17.52x21.02x45.00 21.02x21.02x49.02 24.49x21.02x52.99 24.49x21.02x52.99
    Packing (WxDxH) (inch) 20.87x26.57x48.62 20.87x26.57x48.62 24.41x26.57x52.56 27.95x26.77x56.50 27.95x26.77x56.50
    Net/Gross Weight (lbs.) 104.72/125.66 104.28/125.88 127.87/152.78 161.82/191.58 161.82/191.58
    Room Temperature
    Cooling (°F) 60~90 60~90 60~90 60~90 60~90
    Heating (°F) 32~86 32~86 32~86 32~86 32~86
    Liquid Side/Gas side (inch) 1/4” / 1/2” 3/8” / 5/8” 3/8” / 3/4” 3/8” / 3/4” 3/8” / 3/4”

    Outdoor HYPER

    Outdoor Model CH-RHP18-230VO CH-RHP24-230VO CH-RHP36LCU-230VO CH-RHP48LCU-230VO CH-RHP60LCU-230VO
    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
    Voltage range (V) 187-253 187-253 187-253 187-253 187-253
    Rated Current (A) 8.7 13.4 13.4 22 24
    Cooling
    Rated Capacity Range (Btu/h) 6,000–20,400 7,500–27,000 5,700–36,400 7,300–55,000 13,700–58,000
    EER2 (Btu/w) 12 12 11.7 10.7 10.2
    SEER2 (Btu/w) 18.7 18.7 17.2 15.2 15.2
    Rated Capacity Range (Btu/h) 5,000–21,600 8,800–29,000 9,500–44,000 9,500–65,000 10,000–66,100
    COP (W/W) 3.64 3.55 3.39 3.06 3.36
    HSPF4 (Btu/w) 13.5 13.2 12.1 10.7 10.7
    HSPF5 (Btu/w) 10.8 10.7 9.7 8.7 8.7
    Heating at 5°F (-15°C) Rated Capacity (Btu/h) 18,000 23,600 38,000 46,000 53,000
    Minimum Circuit Ampacity (MCA) (A) 19 24.9 38 44 44
    Max. Fuse (A) 25 40 45 45 45
    Outdoor Air Flow (Max.) (CFM) 1,765.8 2,236.7 3,001.9 4,237.9 4,237.9
    Outdoor Noise Level (dB(A)) 59 61.5 65.5 65 62
    Dimension (WxDxH) (inch) 35.04x13.46x26.50 37.24x16.14x31.89 38.58x16.34x38.39 37.48x16.34x52.48 37.48x16.34x52.48
    Packing (WxDxH) (inch) 39.17x15.67x29.13 42.91x19.68x34.84 45.08x19.68x42.52 43.11x19.49x57.48 43.11x19.49x57.48
    Net/Gross Weight (lbs.) 99.87/107.80 130.29/141.31 206.57/237.44 208.78/239.86 230.28/261.69
    Refrigerant Type/Quantity (oz.) R454B/55.38 R454B/63.49 R454B/126.99 R454B/126.99 R454B/151.68
    Refrigerant Precharge (ft.) 25 25 25 25 25
    Additional Charge for each ft. (oz./ft.) 0.16 0.32 0.32 0.32 0.32
    Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340
    Refrigerant piping Liquid side/Gas side (inch) 1/4” / 1/2” 3/8” / 5/8” 3/8” / 3/4” 3/8” / 3/4” 3/8” / 3/4”
    Max. Pipe Length (ft.) 98.4 164 246 246 246
    Max. Difference in Level (ft.) 65.6 82 98.4 98.4 98.4
    Ambient Temperature Cooling (°F) -22~122 -22~122 -22~122 -22~122 -22~122
    Ambient Temperature Heating (°F) -22~75 -22~75 -22~75 -22~75 -22~75
    AHRI ✔️ ✔️ ✔️ ✔️ ✔️
    ETL ✔️ ✔️ ✔️ ✔️ ✔️
    Energy Star ✔️ ✔️ ✔️ ✔️ ✔️
    NEEP ✔️ ✔️ ✔️ ✔️ ✔️

    Indoor REGULAR

    Indoor Model CH-RS18MAHU CH-RS24MAHU CH-RS30MAHU CH-RS36LCAHU CH-RS48LCAHU CH-RS60LCAHU
    Power Supply 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60
    Cooling Capacity (Btu/h) 18,000 24,000 30,000 36,000 48,000 60,000
    Cooling Current (A) 6.7 9.3 12.5 17.4 21.5 25.5
    Heating Capacity (Btu/h) 18,000 25,000 30,000 38,000 50,000 59,000
    Heating Current (A) 6.7 9.2 11.2 14.4 22 24
    MCA (A) 3.5 4 6 6 9.8 11
    Max. Fuse (A) 15 15 15 15 15 15
    Indoor Air Flow (Turbo/Hi/Mi/Lo/Si) 618.0/576.8/529.7/488.5/ N/A 824.0/759.3/694.5/629.8/ N/A 988.8/894.7/806.4/712.2/ N/A 1189/1083/971.2/865.2/ N/A 1601.0/1471.5/1283.1/1094.8/ N/A 1807.0/1553.9/1353.8/724.0/ N/A
    Indoor Noise Level (Turbo/Hi/Mi/Lo/Si) N/A/42/39.5/33/N/A N/A/43.5/41.5/28.5/N/A N/A/44/41/26/N/A N/A/47/42/31/N/A 56.5/54/51/48/N/A N/A/51/48/42.5/N/A
    ESP (Range) 0-0.8 0-0.8 0-0.8 0-0.8 0-0.8 0-0.8
    Dimension (WxDxH) (inch) 21.02x17.52x45.00 21.02x17.52x45.00 21.02x21.02x49.02 21.02x21.02x49.02 21.02x24.49x52.99 21.02x24.49x52.99
    Packing (WxDxH) (inch) 26.57x20.87x48.62 26.57x20.87x48.62 26.57x24.41x52.56 26.57x24.41x52.56 27.95x26.77x56.50 27.95x26.77x56.50
    Net/Gross Weight (lbs.) 104.72/125.66 104.28/125.88 127.43/151.68 127.87/152.78 161.82/191.58 164.02/189.82
    Cooling (°F) 60~90 60~90 60~90 60~90 60~90 60~90
    Heating (°F) 32~86 32~86 32~86 32~86 32~86 32~86
    Liquid Side/Gas Side (inch) 1/4“ / 1/2” 3/8“ / 5/8“ 3/8“ / 5/8“ 3/8“ / 3/4“ 3/8“ / 3/4“ 3/8“ / 3/4“

    Outdoor REGULAR

    Outdoor Model CH-RES18-230VO CH-RES24-230VO CH-REL30-230VO CH-R36LCU-230VO CH-R48LCU-230VO CH-R60LCU-230VO
    Power Supply 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 187-253 187-253 187-253 187-253 187-253 187-253
    Rated Current (A) 6.7 9.3 12.5 17.4 21.5 25.5
    Cooling Capacity Range (Btu/h) 5,600–20,400 6,700–29,600 9,200–34,000 8,900–38,200 9,500–52,000 21,800–57,300
    EER2 11.7 12.1 12 11.7 10.7 10.2
    SEER2 18.5 19.7 17 15.8 15.2 15.2
    Heating Capacity Range (Btu/h) 5,500–21,800 5,800–33,800 8,500–33,000 6,400–43,000 11,700–60,000 11,800–60,300
    COP 3.60 3.53 3.60 3.36 3.36 3.34
    HSPF4 9.8 9.7 8.7 9.3 9.0 9.1
    HSPF5 7.7 7.3 7.7 7.3 7.2 7.1
    Heating at 5°F (-15°C) (Btu/h) 13,000 18,000 20,400 24,200 35,200 35,400
    MCA (A) 18 24 28 33 39 42
    Max. Fuse (A) 20 25 30 35 40 45
    Outdoor Air Flow (CFM) 1,765.8 2,236.7 2,236.7 2,413.3 4,237.9 4,237.9
    Outdoor Noise Level (dB(A)) 56.5 58.5 61 62.5 65 62.5
    Dimension (WxDxH) (inch) 35.04x13.46x26.50 37.24x16.14x31.89 37.24x16.14x31.89 37.24x16.14x31.89 37.48x16.34x52.48 37.48x16.34x52.48
    Packing (WxDxH) (inch) 39.17x15.67x29.13 42.91x19.68x34.84 42.91x19.68x34.84 42.91x19.68x34.84 43.11x19.49x57.48 43.11x19.49x58.27
    Net/Gross Weight (lbs.) 92.59/100.31 122.13/132.28 142.86/154.54 152.34/162.48 208.78/239.86 209.44/240.08
    Refrigerant Type/Quantity (oz.) R454B/47.97 R454B/70.55 R454B/84.66 R454B/91.71 R454B/126.99 R454B/144.62
    Refrigerant Precharge (ft.) 25 25 25 25 25 25
    Additional Charge for each ft. (oz./ft.) 0.16 0.32 0.32 0.32 0.32 0.32
    Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340 550/340
    Refrigerant piping Liquid side/Gas side (inch) 1/4” / 1/2” 3/8” / 5/8” 3/8” / 5/8” 3/8” / 3/4” 3/8” / 3/4” 3/8” / 3/4”
    Max. Pipe Length (ft.) 98.4 164 164 246 246 213.2
    Max. Difference in Level (ft.) 65.6 82 82 98.4 98.4 98.4
    Ambient Temp Cooling (°F) -13~122 -13~122 -13~122 -13~122 -22~122 -13~122
    Ambient Temp Heating (°F) -13~75 -13~75 -13~75 -13~75 -22~75 -13~75
    AHRI ✔️ ✔️ ✔️ ✔️ ✔️ ✔️
    ETL ✔️ ✔️ ✔️ ✔️ ✔️ ✔️
    Energy Star ✔️ ✔️ ✔️ ✔️ ✔️ ✔️
    NEEP ✔️ ✔️ ✔️ ✔️ ✔️ ✔️

    Shipping & Returns

    • Free shipping on every item over $300.
    • Delivery estimate for your ZIP is shown in the buy box above.
    • Returns accepted per our policy — unopened units in original packaging.

    Warranty

    7-year compressor / 5-year parts

    • Limited manufacturer warranty on the compressor and sealed system components.
    • Your order number is the proof of purchase — keep it for any claim.

    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.

    App Promo

    Frequently Asked Questions

    What size mini split do I need for my room?

    For a space up to 850 sq ft, the Cooper & Hunter 18,000 BTU mini split is ideal. With a SEER rating of 19.7, this unit provides efficient cooling and heating for medium-sized rooms.

    Can I install a mini split myself?

    While it is possible to install the Cooper & Hunter mini split system yourself, professional installation is recommended for optimal performance. This model requires a 230V power supply and proper handling of refrigerants like R454B.

    Does the mini split come pre-charged with refrigerant?

    Yes, the Cooper & Hunter mini split is pre-charged with R454B refrigerant for up to 25 ft of line set, making installation easier. However, if your installation requires longer lines, additional refrigerant may be needed.

    What warranty does Cooper & Hunter offer for this mini split?

    The Cooper & Hunter 18,000 BTU model comes with a 5-year parts warranty and a 7-year compressor warranty, provided you register within 30 days of purchase. This ensures you are covered for any manufacturing defects.

    What is the SEER rating of this mini split and why is it important?

    The Cooper & Hunter mini split features a SEER rating of 19.7, which indicates high energy efficiency. A higher SEER rating means lower energy bills and better environmental impact, making it a smart choice for homeowners.

    What voltage does this mini split require?

    The Cooper & Hunter ductless mini split operates on a 230V electrical system, which is standard for most residential installations. Ensure your home is equipped to handle this voltage for optimal performance.