Cooper & Hunter 2 Zone 18,000 BTU OLIVIA Midnight Ductless Mini Split AC Wall Mounted 9k+9k
Cooper & Hunter7-Yr WarrantySKU: CH-R18MES-230VO/M09WMB+M09WMB-NO/NO-MN
Product specifications
- Voltage
- 230V
- SEER
- 25.1
- WiFi
- Included
- Zone
- Dual Zone
- Type
- Wall Mount
- Freon
R454B
Choose Your Configuration
Choose a line-set kit length for each indoor unit. “No Installation Kit” ships the units only.
Size — match your room area
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FREE Delivery
Ships from the nearest of our three US warehouses, leaves in 1–2 business days. Shipping policy
COOPER & HUNTER · OLIVIA MIDNIGHT
Built for year-round comfort
CH-R18MES-230VO/M09WMB+M09WMB-NO/NO-MN
System Specs
| Cooling Capacity | 18,000 BTU/h |
|---|---|
| Heating Capacity | 19,000 BTU/h |
| SEER2 | 25.1 |
| EER2 | 14 |
| Voltage | 230V |
| Refrigerant | R454B |
|---|---|
| Compressor | Inverter |
| Climate Range | -13–122°F / -13–75°F outdoor ambient |
| Sound Level (indoor) | 40/34/23.5 dB |
| Warranty | 7-Yr Compressor |
Indoor Unit Specs
| Unit Dimensions (WxDxH) | Net / Gross Weight | Remote Control |
|---|---|---|
| 31.57 × 7.87 × 11.61 in | 18.96 / 24.25 lb | RG10K-exclusive remote |
Olivia Midnight Series Description
The Cooper & Hunter Olivia 2-Zone Mini Split System features two 9,000 BTU wall-mounted zones (Olivia Midnight) and an outdoor unit with a nominal capacity of 18,000 BTU, capable of operation down to -13°F ambient temperature. It offers energy efficiency with a SEER2 rating of 25.1, uses R454B refrigerant, and includes built-in Wi-Fi control for remote management.
6 Modes for Maximum Comfort
Engineered to adapt to every season, every room, every need.
Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed. Ideal for year-round use.
WHEREVER YOU ARE
Control your comfort, your way
- Easy scheduling & timer
- Multiple ways to control your comfort
- Smart geo location
- In-app support & assistance
- Voice control
IN THE BOX
Everything included with this system
- Cooper&Hunter MES Series 18,000 BTU Outdoor Condenser, 230V, R454B - Mini Split Air Conditioner Heat Pump
- Indoor Wall Mount — CH-RB09MOLVWM-230VI × 2
WARRANTY
BACKED BY COOPER & HUNTER
Industry-leading protection on every unit
Compressor: 7-year coverage
With product registration after professional installation.
Parts & components: 5-year coverage
All major components and refrigerant circuit parts.
Technical Specifications
Outdoor Unit Specs— CH-R18MES-230VO
| Model | CH-R18MES-230VO |
|---|---|
| Unit Dimensions (WxDxH) | 35.04 x 13.46 x 26.50 in |
| Net/Gross Weight | 100.53/109.35 lb |
| Packing Dimensions (WxDxH) | 40.55 x 17.24 x 29.53 in |
| Power Supply | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 20 A |
| Min. Circuit Ampacity | 16 A |
| Copper Line Size (Liquid/Gas) | 3x1/4"- 3x3/8" |
| Noise Level | 59.5 dB |
| Airflow | 1,765.8 CFM |
| Dehumidification | 0.42 pt/h |
Indoor Unit Specs— CH-RB09MOLVWM-230VI
| Model | CH-RB09MOLVWM-230VI |
|---|---|
| Unit Dimensions (WxDxH) | 31.57x7.87x11.61 in |
| Net/Gross Weight | 18.96/24.25 lb |
| Packing Dimensions (WxDxH) | 34.45x11.22x14.96 in |
| Power Supply | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 15 A |
| Min. Circuit Ampacity | 3 A |
| Copper Line Size (Liquid/Gas) | 1/4"/3/8" |
| Noise Level (Hi/Med/Lo) | 40/34/23.5 dB |
| Airflow (Turbo/Hi/Mi/Lo) | 341.18/291.18/194.12/152.94 CFM |
| Dehumidification | 2.64 pt/h |
| Drain Pipe Diameter | 5/8" |
| Controller | RG10K-exclusive remote |
System Specs
| Cooling — Rated Capacity (Range) | 18,000 Btu/h (5,400–21,600) |
|---|---|
| Heating at 47°F — Rated Capacity (Range) | 19,000 Btu/h (5,700–21,600) |
| Rated Heating at 5°F | 13,500 Btu/h |
| SEER2 / EER2 | 25.1 / 14 |
| HSPF4 / HSPF5 / COP (47°F) | 9.8 / 7.8 / 3.8 |
| Outdoor Unit MCA / Max. Fuse | 16 A / 20 A |
| Max. Connectable Indoor Units | 3 |
| Outdoor Noise Level | 59.5 dB(A) |
| Outdoor Unit Dimensions (W×D×H) | 35.04 × 13.46 × 26.50 in |
| Outdoor Unit Net / Gross Weight | 100.53 / 109.35 lbs |
| Refrigerant Type / Charge | R454B / 61.73 oz |
| Pre-charged Line Length | 75 ft (add 0.16 oz/ft for 1/4 in liquid pipe / 0.32 oz/ft for 3/8 in liquid pipe) |
| Max. Total Pipe Length / Max. to One Indoor | 196.8 ft / 98.4 ft |
| Max. Height Difference (Indoor–Outdoor / Between Indoors) | 49.2 ft / 33 ft |
| Operating Range — Cooling / Heating | -13–122°F / -13–75°F outdoor ambient |
Series Comparison Table
Technical specifications for every model in the series — this product is one of them.
Indoor HYPER
| Specification | CH-RB06MOLVWM-230VI | CH-RB09MOLVWM-230VI | CH-RB12MOLVWM-230VI | CH-RB18MOLVWM-230VI | CH-RB24MOLVWM-230VI |
|---|---|---|---|---|---|
| Rated | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 |
| Rated Capacity | 6,000 Btu/h | 9,000 Btu/h | 12,000 Btu/h | 18,000 Btu/h | 23,000 Btu/h |
| Minimum Circuit Ampacity (MCA) | 3 A | 3 A | 3 A | 3 A | 3 A |
| Max. Fuse | 15 A | 15 A | 15 A | 15 A | 15 A |
| Indoor Air Flow (Turbo/Hi/Mi/Lo/Si) | 294.3/235.4/176.6/141.3/ \A | 382.6/294.3/194.2/153.0/NA | 382.6/294.3/194.2/153.0 / / | 759.3/500.3/441.4/ 370.8 / / | 799.3/588.6/459.1/ 382.6 / / |
| Indoor Noise Level (Turbo/Hi/Mi/Lo/Si) | 42/37/32/24/20 dB(A) | N\A/38.5/33/24/20.5 dB(A) | N\A/42/35.5/22.5/20 dB(A) | 54.5/45/40/24.5/20 dB(A) | 54.5/45.5/43.5/34.5/20.5 dB(A) |
| Dimension (WxDxH) | 28.70x7.87x11.50 inch | 31.57x7.87x11.61 inch | 31.57x7.87x11.61 inch | 42.60x9.21x13.27 inch | 42.60x9.21x13.27 inch |
| Packing (WxDxH) | 31.10x10.63x14.76 inch | 34.45x11.22x14.96 inch | 34.45x11.22x14.96 inch | 45.47x12.40x16.34 inch | 45.47x12.40x16.34 inch |
| Net/Gross Weight | 17.64/23.15 lbs. | 18.96/24.25 lbs. | 18.96/24.25 lbs. | 30.42/39.68 lbs. | 30.86/40.56 lbs. |
| Cooling | 60 ~ 90 °F | 60 ~ 90 °F | 60 ~ 90 °F | 60 ~ 90 °F | 60 ~ 90 °F |
| Heating | 32 ~ 86 °F | 32 ~ 86 °F | 32 ~ 86 °F | 32 ~ 86 °F | 32 ~ 86 °F |
Outdoor Regular
| Specification | CH-R18MES-230VOThis model | CH-R28MES-230VO | CH-R36MES-230VO | CH-R48MES-230VO | CH-R60MES-230VO |
|---|---|---|---|---|---|
| Power Supply (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 |
| Cooling Rated Capacity (range) (Btu/h) | 5,400~21,600 | 7,200~32,000 | 9,000~42,000 | 12,000~55,000 | 19,000~62,000 |
| Cooling Rated Current (A) | 6 | 9.2 | 13.5 | 16.6 | 26.2 |
| EER2 | 14 | 13 | 12 | 12.5 | 10 |
| SEER2 | 25.1 | 25 | 24 | 24 | 22 |
| Heating Rated Capacity (range) (Btu/h) | 5,700~21,600 | 8,400~29,000 | 10,000~42,500 | 13,000~53,000 | 20,000~60,000 |
| Heating Rated Current (A) | 6.8 | 9.2 | 14 | 16.3 | 21 |
| Heating at 47°F COP (W/W) | 3.8 | 3.8 | 3.5 | 3.8 | 3.7 |
| HSPF4 | 9.8 | 9.5 | 9.5 | 10.3 | 9.5 |
| HSPF5 | 7.8 | 7 | 7 | 8 | 7.4 |
| Heating at 5°F Rated Capacity (Btu/h) | 13,500 | 19,000 | 26,000 | 36,000 | 39,000 |
| Minimum Circuit Ampacity (Outdoor unit) (A) | 16 | 23 | 30.5 | 40 | 40 |
| Max. Fuse (Outdoor unit) (A) | 20 | 25 | 35 | 45 | 45 |
| Outdoor Air Flow (Max) (CFM) | 1,765.8 | 2,130.7 | 2,148.4 | 4,502.8 | 4,502.8 |
| Outdoor Noise Level (Sound Pressure) (dB(A)) | 59.5 | 61 | 64.5 | 63 | 65 |
| Dimension (W×D×H) (inch) | 35.04x13.46x26.50 | 37.24x16.14x31.89 | 37.24x16.14x31.89 | 37.48x16.34x52.48 | 37.48x16.34x52.48 |
| Packing (W×D×H) (inch) | 40.55x17.24x29.53 | 42.91x19.68x34.84 | 42.91x19.68x34.84 | 43.11x19.49x58.27 | 43.11x19.49x58.27 |
| Net/Gross Weight (lbs) | 100.53/109.35 | 138.89/149.69 | 168.87/180.12 | 222.00/254.19 | 237.88/270.28 |
| Refrigerant Type/Charged (oz) | R454B/61.73 | R454B/84.66 | R454B/120.63 | R454B/148.15 | R454B/151.68 |
| Refrigerant Precharge (ft) | 75 | 100 | 125 | 150 | 150 |
| Additional Charge for Each (0.16 for 1/4 in liquid pipe / *0.32 for 3/8 in liquid pipe) (oz/ft) | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 |
| Design Pressure (PSIG) | 550/340 | 550/340 | 550/340 | 550/340 | 550/340 |
| Refrigerant Piping Liquid Side (inch) | 3 x 1/4" | 4 x 1/4" | 5 x 1/4" | 6 x 1/4" | 6 x 1/4" |
| Refrigerant Piping Gas Side (inch) | 3 x 3/8" | 3 x 3/8" + 1 x 1/2" | 4 x 3/8" + 1 x 1/2" | 4 x 3/8" + 2 x 1/2" | 4 x 3/8" + 2 x 1/2" |
| Max. Pipe Length (ft) | 196.8 | 262.4 | 262.4 | 262.4 | 262.4 |
| Max. Length for One Indoor Unit (ft) | 98.4 | 114.8 | 114.8 | 114.8 | 114.8 |
| Max. Height Difference in Level (ft) | 49.2 | 49.2 | 49.2 | 49.2 | 49.2 |
| Max. Height Difference Between Indoor Units (ft) | 33 | 33 | 33 | 33 | 33 |
| Ambient Temperature Cooling (°F) | -13~122 | -13~122 | -13~122 | -13~122 | -13~122 |
| Ambient Temperature Heating (°F) | -13~75 | -13~75 | -13~75 | -13~75 | -13~75 |
| Certification: AHRI | ✔ | ✔ | ✔ | ✔ | ✔ |
| Certification: Energy Star | ✔ | ✔ | ✔ | ✔ | ✔ |
| Certification: NEEP | ✔ | ✔ | ✔ | ✔ | ✔ |
| Certification: ETL | ✔ | ✔ | ✔ | ✔ | ✔ |
Outdoor Hyper
| Specification | CH-RVHP19M-230VO | CH-RVHP28M-230VO | CH-RVHP36M-230VO | CH-RVHP48M-230VO | CH-RVHP55M-230VO |
|---|---|---|---|---|---|
| Power Supply (V/Ph/Hz) | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 | 208/230, 1, 60 |
| Operating Range (V) | 187-253 | 187-253 | 187-253 | 187-253 | 187-253 |
| Cooling Capacity (BTU/h) | 5,400~28,000 | 7,200~37,000 | 9,000~43,000 | 12,000~57,000 | 19,000~59,000 |
| SEER2 | 5.6 | 9.5 | 12 | 17.3 | 18.5 |
| EER | 15 | 12.5 | 13 | 12 | 12 |
| IEER | 25 | 23 | 23 | 23 | 22.2 |
| Heating Capacity (BTU/h) | 5,700~27,000 | 8,400~36,000 | 10,000~44,000 | 13,000~57,000 | 20,000~59,000 |
| HSPF2 | 6.5 | 9.1 | 11.5 | 17.3 | 20.1 |
| COP | 4 | 3.8 | 4 | 3.7 | 3.5 |
| SCOP | 10.4 | 10.5 | 10.7 | 11 | 10.5 |
| Power Input (W) | 8.5 | 8.5 | 8.5 | 9 | 8.5 |
| Air Flow (CFM) | 19,000 | 27,000 | 36,000 | 47,000 | 47,000 |
| Sound Level Indoor (dBA) | 17.5 | 30 | 37 | 37 | 39.5 |
| Sound Level Outdoor (dBA) | 20 | 35 | 40 | 40 | 40 |
| Weight Indoor (lbs) | 2,130.7 | 2,148.4 | 3,037.2 | 4,502.8 | 4,502.8 |
| Weight Outdoor (lbs) | 61.5 | 61 | 65 | 65 | 65 |
| Dimensions Indoor (in) | 37.24x16.14x31.89 | 37.24x16.14x31.89 | 38.58x16.34x38.39 | 37.48x16.34x52.48 | 37.48x16.34x52.48 |
| Dimensions Outdoor (in) | 42.91x19.68x34.84 | 42.91x19.68x34.84 | 45.08x19.68x42.52 | 43.11x19.49x58.27 | 43.11x19.49x58.27 |
| Shipping Weight Indoor/Outdoor (lbs) | 137.35/148.15 | 168.43/179.67 | 211.86/244.71 | 246.47/276.68 | 246.47/276.68 |
| Refrigerant Type/Amount (lbs) | R454B/78.31 | R454B/120.63 | R454B/134.04 | R454B/151.68 | R454B/151.68 |
| Fuse Size (A) | 75 | 100 | 125 | 150 | 150 |
| Wire Size (AWG) | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 | 0.16 / 0.32 |
| Control Voltage (V) | 550/340 | 550/340 | 550/340 | 550/340 | 550/340 |
| Liquid Line | 3 x 1/4" | 4 x 1/4" | 5 x 1/4" | 6 x 1/4" | 6 x 1/4" |
| Suction Line | 3 x 3/8" | 3 x 3/8" + 1 x 1/2" | 3 x 3/8" + 2 x 1/2" | 4 x 3/8" + 2 x 1/2" | 4 x 3/8" + 2 x 1/2" |
| Max Line Length (ft) | 196.8 | 262.4 | 262.4 | 262.4 | 262.4 |
| Max Elevation Diff (ft) | 98.4 | 114.8 | 114.8 | 114.8 | 114.8 |
| Max Head Pressure (ft) | 49.2 | 49.2 | 49.2 | 49.2 | 49.2 |
| Max Suction Pressure (ft) | 33 | 33 | 33 | 33 | 33 |
| Operating Range Cooling (°F) | -22~122 | -22~122 | -22~122 | -22~122 | -22~122 |
| Operating Range Heating (°F) | -22~75 | -22~75 | -22~75 | -22~75 | -22~75 |
| Feature 1 | ✓ | ✓ | ✓ | ✓ | ✓ |
| Feature 2 | ✓ | ✓ | ✓ | ✓ | ✓ |
| Feature 3 | ✓ | ✓ | ✓ | ✓ | ✓ |
| Feature 4 | ✓ | ✓ | ✓ | ✓ | ✓ |
Which system is right for you?
| Your selectionCooper & HunterCooper & Hunter 2 Zone 18,000 BTU OLIVIA Midnight Ductless Mini Split AC Wall Mounted 9k+9k$2,433.60 |  Cooper & HunterCooper & Hunter Hyper Olivia Midnight 19,000 BTU 2-Zone 9k+9k Wall Mount, 230V, R454B$2,766.60 |  Cooper & HunterCooper & Hunter Olivia Midnight 28,000 BTU 2-Zone 9k+9k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump$2,996.64 |  Cooper & HunterCooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 9k+9k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump$4,104.00 | |
|---|---|---|---|---|
| Cooling Capacity | 18,000 BTU/h | 19,000 BTU/h | 28,000 BTU/h | 36,000 BTU/h |
| SEER2 Rating | 25.1 | 25.0 | 23.8 | 23.9 |
| Refrigerant | R454B | R454B | R454B | R454B |
| Zones | Dual Zone | Dual Zone | Dual Zone | Dual Zone |
| Voltage | 230V | 230V | 230V | 230V |
| Shop Now → | Shop Now → | Shop Now → |
Frequently asked questions.
How many rooms can the Cooper & Hunter 2 Zone 18,000 BTU mini split cool?
The Cooper & Hunter 2 Zone 18,000 BTU system is designed to effectively cool two rooms, each with a capacity of 9,000 BTU. This dual-zone setup can cover a total area of up to 850 sq ft.
Can I mix BTU sizes with the Cooper & Hunter mini split?
Yes, you can mix BTU sizes with the Cooper & Hunter mini split, but it’s essential to ensure that the total BTU load does not exceed the system's capacity of 18,000 BTU. Proper sizing will help maintain efficiency and comfort across all zones.
Do all zones run simultaneously in the Cooper & Hunter ductless mini split?
In the Cooper & Hunter 2 Zone system, both zones can be controlled independently, allowing for simultaneous operation. This flexibility ensures you can tailor the cooling or heating needs of each room based on occupancy and preference.
Is the Cooper & Hunter mini split system energy-efficient compared to multiple single-zone units?
The Cooper & Hunter 2 Zone 18,000 BTU mini split boasts a SEER rating of 25.1, which is significantly more efficient than operating multiple single-zone units. This high efficiency can lead to lower energy bills and a reduced carbon footprint.
What is the warranty on the Cooper & Hunter OLIVIA Midnight mini split?
The Cooper & Hunter OLIVIA Midnight mini split comes with a 5-year parts warranty and a 7-year compressor warranty, provided that registration is completed within 30 days of purchase. This warranty offers peace of mind regarding your investment in comfort.
Does the Cooper & Hunter mini split come pre-charged with refrigerant?
Yes, the Cooper & Hunter mini split system is pre-charged with R454B refrigerant for up to 25 ft of line set. This feature simplifies installation, ensuring that the system is ready for efficient operation right out of the box.
Manufacturer Technical Support
Reach your brand's tech support team directly
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Key Features
- 2-zone system — the CH-R18MES-230VO outdoor unit supports up to 3 indoor units, each individually controlled; port adapters included, no branch boxes required
- 18,000 Btu/h rated cooling / 19,000 Btu/h rated heating — inverter range 5,400–21,600 cooling, 5,700–21,600 heating (Btu/h)
- 25.1 SEER2 / 14 EER2 / 9.8 HSPF4 — current R454B-generation efficiency
- Heats down to -13°F outdoor ambient — 13,500 Btu/h rated heating at 5°F; cooling operation -13–122°F
- Wi-Fi Smart Kit built in — Cooper & Hunter app control; remote control included with each indoor unit; compatible with C&H 12V wall thermostat (sold separately)
- ETL listed, AHRI certified, Energy Star Cold Climate & NEEP listed