Cooper & Hunter Olivia Midnight 28,000 BTU 3-Zone 9k+9k+12k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump
Cooper & Hunter7-Yr WarrantySKU: CH-R28MES-230VO/M09WMB+M09WMB+M12WMB-NO/NO/NO
Product specifications
- Voltage
- 230V
- SEER
- 23.8
- WiFi
- Included
- Zone
- Three 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-R28MES-230VO/M09WMB+M09WMB+M12WMB-NO/NO/NO
System Specs
| Cooling Capacity | 27,000 BTU/h |
|---|---|
| Heating Capacity | 27,000 BTU/h |
| SEER2 | 25 |
| EER2 | 13 |
| 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 3-Zone Mini Split System features three wall-mounted zones with combined cooling capacities of 9,000 BTU, 9,000 BTU, and 12,000 BTU, delivering efficient temperature control with a SEER2 rating of 25. It includes built-in Wi-Fi for remote management and uses R454B refrigerant, operating effectively down to -13°F ambient temperature.
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 28,000 BTU Outdoor Condenser, 230V, R454B - Mini Split Air Conditioner Heat Pump
- Indoor Wall Mount — CH-RB09MOLVWM-230VI × 2
- Indoor Wall Mount — CH-RB12MOLVWM-230VI
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-R28MES-230VO
| Model | CH-R28MES-230VO |
|---|---|
| Unit Dimensions (WxDxH) | 37.24 x 16.14 x 31.89 in |
| Net/Gross Weight | 138.89/149.69 lb |
| Packing Dimensions (WxDxH) | 42.91 x 19.68 x 34.84 in |
| Power Supply | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 25 A |
| Min. Circuit Ampacity | 23 A |
| Copper Line Size (Liquid/Gas) | 4x1/4" - 3x3/8"+1x1/2" |
| Noise Level | 61 dB |
| Airflow | 2,130.7 CFM |
| Dehumidification | 1.69 pt/h |
Indoor Unit Specs
| Model | CH-RB09MOLVWM-230VI | CH-RB12MOLVWM-230VI |
|---|---|---|
| Unit Dimensions (WxDxH) | 31.57x7.87x11.61 in | 31.57x7.87x11.61 in |
| Net/Gross Weight | 18.96/24.25 lb | 18.74/24.25 lb |
| Packing Dimensions (WxDxH) | 34.45x11.22x14.96 in | 34.45x11.22x14.96 in |
| Power Supply | 208-230V, 1Ph, 60Hz | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 15 A | 15 A |
| Min. Circuit Ampacity | 3 A | 3 A |
| Copper Line Size (Liquid/Gas) | 1/4"/3/8" | 1/4"/1/2" |
| Noise Level (Hi/Med/Lo) | 40/34/23.5 dB | 42/36/25 dB |
| Airflow (Turbo/Hi/Mi/Lo) | 341.18/291.18/194.12/152.94 CFM | 341.18/291.18/194.12/152.94 CFM |
| Dehumidification | 2.64 pt/h | 2.83 pt/h |
| Drain Pipe Diameter | 5/8" | 5/8" |
| Controller | RG10K-exclusive remote | RG10K-exclusive remote |
System Specs
| Cooling — Rated Capacity (Range) | 27,000 Btu/h (7,200–32,000) |
|---|---|
| Heating at 47°F — Rated Capacity (Range) | 27,000 Btu/h (8,400–29,000) |
| Rated Heating at 5°F | 19,000 Btu/h |
| SEER2 / EER2 | 25 / 13 |
| HSPF4 / HSPF5 / COP (47°F) | 9.5 / 7 / 3.8 |
| Outdoor Unit MCA / Max. Fuse | 23 A / 25 A |
| Max. Connectable Indoor Units | 4 |
| Outdoor Noise Level | 61 dB(A) |
| Outdoor Unit Dimensions (W×D×H) | 37.24 × 16.14 × 31.89 in |
| Outdoor Unit Net / Gross Weight | 138.89 / 149.69 lbs |
| Refrigerant Type / Charge | R454B / 84.66 oz |
| Pre-charged Line Length | 100 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 | 262.4 ft / 114.8 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-R28MES-230VOThis model | CH-R18MES-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) | 7,200~32,000 | 5,400~21,600 | 9,000~42,000 | 12,000~55,000 | 19,000~62,000 |
| Cooling Rated Current (A) | 9.2 | 6 | 13.5 | 16.6 | 26.2 |
| EER2 | 13 | 14 | 12 | 12.5 | 10 |
| SEER2 | 25 | 25.1 | 24 | 24 | 22 |
| Heating Rated Capacity (range) (Btu/h) | 8,400~29,000 | 5,700~21,600 | 10,000~42,500 | 13,000~53,000 | 20,000~60,000 |
| Heating Rated Current (A) | 9.2 | 6.8 | 14 | 16.3 | 21 |
| Heating at 47°F COP (W/W) | 3.8 | 3.8 | 3.5 | 3.8 | 3.7 |
| HSPF4 | 9.5 | 9.8 | 9.5 | 10.3 | 9.5 |
| HSPF5 | 7 | 7.8 | 7 | 8 | 7.4 |
| Heating at 5°F Rated Capacity (Btu/h) | 19,000 | 13,500 | 26,000 | 36,000 | 39,000 |
| Minimum Circuit Ampacity (Outdoor unit) (A) | 23 | 16 | 30.5 | 40 | 40 |
| Max. Fuse (Outdoor unit) (A) | 25 | 20 | 35 | 45 | 45 |
| Outdoor Air Flow (Max) (CFM) | 2,130.7 | 1,765.8 | 2,148.4 | 4,502.8 | 4,502.8 |
| Outdoor Noise Level (Sound Pressure) (dB(A)) | 61 | 59.5 | 64.5 | 63 | 65 |
| Dimension (W×D×H) (inch) | 37.24x16.14x31.89 | 35.04x13.46x26.50 | 37.24x16.14x31.89 | 37.48x16.34x52.48 | 37.48x16.34x52.48 |
| Packing (W×D×H) (inch) | 42.91x19.68x34.84 | 40.55x17.24x29.53 | 42.91x19.68x34.84 | 43.11x19.49x58.27 | 43.11x19.49x58.27 |
| Net/Gross Weight (lbs) | 138.89/149.69 | 100.53/109.35 | 168.87/180.12 | 222.00/254.19 | 237.88/270.28 |
| Refrigerant Type/Charged (oz) | R454B/84.66 | R454B/61.73 | R454B/120.63 | R454B/148.15 | R454B/151.68 |
| Refrigerant Precharge (ft) | 100 | 75 | 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) | 4 x 1/4" | 3 x 1/4" | 5 x 1/4" | 6 x 1/4" | 6 x 1/4" |
| Refrigerant Piping Gas Side (inch) | 3 x 3/8" + 1 x 1/2" | 3 x 3/8" | 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) | 262.4 | 196.8 | 262.4 | 262.4 | 262.4 |
| Max. Length for One Indoor Unit (ft) | 114.8 | 98.4 | 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 selection | ||||
|---|---|---|---|---|
| Cooling Capacity | 28,000 BTU/h | 28,000 BTU/h | 28,000 BTU/h | 28,000 BTU/h |
| SEER2 Rating | 23.8 | 23.8 | 23.8 | 23.8 |
| Refrigerant | R454B | R454B | R454B | R454B |
| Zones | Three Zone | Dual Zone | Three Zone | Four Zone |
| Voltage | 230V | 230V | 230V | 230V |
| Shop Now → | Shop Now → | Shop Now → |
Frequently asked questions.
How many rooms can the Cooper & Hunter Olivia Midnight 28,000 BTU mini split cool?
The Cooper & Hunter Olivia Midnight 28,000 BTU system is designed to effectively cool or heat up to three zones, accommodating various room sizes with its 9k, 9k, and 12k indoor units.
Can I mix BTU sizes when using the Cooper & Hunter Olivia Midnight multi-zone system?
Yes, you can mix BTU sizes in the Cooper & Hunter Olivia Midnight system, allowing for flexibility in meeting the specific cooling and heating needs of different rooms, with a total output of 28,000 BTU across the three zones.
Do all zones in the Cooper & Hunter Olivia Midnight run simultaneously?
In the Cooper & Hunter Olivia Midnight mini split, all zones can run simultaneously, allowing for customized temperature control across your home based on individual needs.
What are the efficiency benefits of the Cooper & Hunter Olivia Midnight compared to multiple single-zone units?
With a SEER rating of 23.8, the Cooper & Hunter Olivia Midnight is more efficient than multiple single-zone units, providing significant energy savings while effectively managing three separate zones.
What warranty does the Cooper & Hunter Olivia Midnight come with?
The Cooper & Hunter Olivia Midnight includes a 5-year parts warranty and a 7-year compressor warranty, but you must register the product within 30 days of installation to activate these terms.
Does the Cooper & Hunter Olivia Midnight come pre-charged with refrigerant?
Yes, the Cooper & Hunter Olivia Midnight is pre-charged with refrigerant R454B and is ready for installation with up to 25 ft of line set, making setup easier for homeowners.
Manufacturer Technical Support
Reach your brand's tech support team directly
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Key Features
- 3-zone system — the CH-R28MES-230VO outdoor unit supports up to 4 indoor units, each individually controlled; port adapters included, no branch boxes required
- 27,000 Btu/h rated cooling / 27,000 Btu/h rated heating — inverter range 7,200–32,000 cooling, 8,400–29,000 heating (Btu/h)
- 25 SEER2 / 13 EER2 / 9.5 HSPF4 — current R454B-generation efficiency
- Heats down to -13°F outdoor ambient — 19,000 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

