Excellent 4.9 | 18,452 reviews

Cooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 12k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-R36MES-230VO/M12WMB+M18WMB-NO/NO

Cooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 12k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-R36MES-230VO/M12WMB+M18WMB-NO/NO

$3,154.99
$3,154.99 $4,206.24
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Cooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 12k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-R36MES-230VO/M12WMB+M18WMB-NO/NO

Cooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 12k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-R36MES-230VO/M12WMB+M18WMB-NO/NO

$3,154.99
$3,154.99 $4,206.24
SAVE 24% Sold out

Cooper & Hunter Olivia Midnight 36,000 BTU 2-Zone 12k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-R36MES-230VO/M12WMB+M18WMB-NO/NO

The Cooper & Hunter Olivia 2-Zone Mini Split System includes two wall-mounted zones with 12,000 BTU and 18,000 BTU capacities, operating efficiently down to -13°F ambient temperatures. It features a built-in Wi-Fi control system, a SEER2 rating of 24, and uses R454B refrigerant for environmentally responsible cooling and heating.

Features
  • 2-zone system — the CH-R36MES-230VO outdoor unit supports up to 5 indoor units, each individually controlled; port adapters included, no branch boxes required
  • 36,000 Btu/h rated cooling / 37,000 Btu/h rated heating — inverter range 9,000–42,000 cooling, 10,000–42,500 heating (Btu/h)
  • 24 SEER2 / 12 EER2 / 9.5 HSPF4 — current R454B-generation efficiency
  • Heats down to -13°F outdoor ambient — 26,000 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
  • Outdoor unit (condenser): CH-R36MES-230VO — 36,000 BTU multi-zone R454B outdoor unit, pre-charged for up to 125 ft of line
  • Zone 1 — Wall Mount (Olivia Midnight): CH-RB12MOLVWM-230VI (12,000 Btu/h) with remote control
  • Zone 2 — Wall Mount (Olivia Midnight): CH-RB18MOLVWM-230VI (18,000 Btu/h) with remote control
  • Wi-Fi Smart Kit (built in) for app control
  • Installation kits — choose 16 ft, 25 ft, or 50 ft per zone: copper line set, communication cable, and drain line
Specifications
Power Supply 208/230V, 1 Ph, 60 Hz (voltage range 187-253V)
Cooling — Rated Capacity (Range) 60,000 Btu/h (19,000–62,000)
Heating at 47°F — Rated Capacity (Range) 60,000 Btu/h (20,000–60,000)
Rated Heating at 5°F 39,000 Btu/h
SEER2 / EER2 22 / 10
HSPF4 / HSPF5 / COP (47°F) 9.5 / 7.4 / 3.7
Outdoor Unit MCA / Max. Fuse 36 A / 40 A
Max. Connectable Indoor Units 6
Outdoor Noise Level 65 dB(A)
Outdoor Unit Dimensions (W×D×H) 37.48 × 16.34 × 52.48 in
Outdoor Unit Net / Gross Weight 237.88 / 270.28 lbs
Refrigerant Type / Charge R454B / 151.68 oz
Pre-charged Line Length 150 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
What our Experts Think
  • Balanced Two-Zone Comfort – This 36,000 BTU system pairs 12K + 18K Olivia Midnight wall-mounted units, delivering independent temperature control for two medium-to-large rooms.
  • High-Efficiency Inverter Technology – Variable-speed inverter operation maintains consistent indoor temperatures while helping reduce energy consumption and operating costs.
  • Eco-Friendly R454B Refrigerant – Uses next-generation R454B refrigerant for efficient performance with improved environmental characteristics.
  • Quiet, Smart Operation – Olivia Midnight indoor units feature whisper-quiet performance, built-in Wi-Fi capability, multiple comfort modes, and advanced air filtration for everyday convenience.
  • Year-Round Heat Pump Performance – Provides reliable cooling in summer and efficient heating during colder months, making it a dependable all-season comfort solution.
  • Expert Verdict – An excellent choice for homes, apartments, or offices needing efficient dual-zone climate control, stylish Midnight wall units, and dependable energy-saving performance.

Q&A

Q: What rooms is this mini split system designed for?
A: This 36,000 BTU dual-zone system includes one 12,000 BTU and one 18,000 BTU wall-mounted indoor unit, making it ideal for two rooms of different sizes.

Q: Can each zone have its own temperature setting?
A: Yes. Each indoor unit features independent temperature control for personalized comfort in every room.

Q: Does this system provide both heating and cooling?
A: Yes. The heat pump system delivers efficient year-round cooling and heating.

Q: What refrigerant does this system use?
A: It uses R454B refrigerant, designed for improved energy efficiency and a lower environmental impact.

Q: Is this system energy efficient?
A: Yes. Inverter technology automatically adjusts compressor speed to help reduce energy consumption while maintaining consistent indoor comfort.


Maintenance Tips
  • Clean the washable air filters every 2–4 weeks to maintain efficient airflow, heating, and cooling performance.
  • Keep both indoor units and the outdoor condenser free of dust, leaves, and debris to maximize efficiency and extend system life.
  • Wipe the indoor units with a soft, damp cloth and avoid abrasive cleaners or harsh chemicals that may damage the finish.
  • Inspect the condensate drain lines regularly to help prevent clogs, leaks, and water damage.
  • Schedule annual professional maintenance to inspect refrigerant levels, electrical connections, and overall system performance for reliable year-round operation.
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