Cooper & Hunter Hyper Olivia Midnight 48,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump - CH-RHP48M-230VO/M18WMB+M18WMB-NO/NO
The Cooper & Hunter Olivia Hyper Heat 2-Zone Mini Split System features two 18,000 BTU wall-mounted zones and an outdoor unit with a nominal capacity of 48,000 BTU, offering efficient heating down to -22°F ambient temperatures. It includes built-in Wi-Fi control, operates with R454B refrigerant, and achieves a SEER2 rating of 23.
Features
-
2-zone system — the CH-RHP48M-230VO outdoor unit supports up to 6 indoor units, each individually controlled; port adapters included, no branch boxes required
-
47,000 Btu/h rated cooling / 49,000 Btu/h rated heating — inverter range 12,000–57,000 cooling, 13,000–57,000 heating (Btu/h)
-
23 SEER2 / 12 EER2 / 11 HSPF4 — current R454B-generation efficiency
-
Hyper Heat: heats down to -22°F outdoor ambient — 47,000 Btu/h rated heating at 5°F; cooling operation -22–122°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)
-
Outdoor unit (condenser): CH-RHP48M-230VO — 48,000 BTU Hyper Heat multi-zone R454B outdoor unit, pre-charged for up to 150 ft of line
-
Zone 1 — Wall Mount (Olivia Midnight): CH-RB18MOLVWM-230VI (18,000 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
-
Hyper Heat Performance – This 48,000 BTU dual-zone system delivers powerful heating and cooling for two large spaces (18K + 18K), with dependable heating even in extreme cold.
-
Independent Zone Control – Each 18,000 BTU indoor unit has its own temperature settings, allowing personalized comfort in separate rooms.
-
High-Efficiency Inverter Technology – Variable-speed inverter operation maintains consistent temperatures while reducing energy consumption and operating costs.
-
Modern R454B Refrigerant – Uses next-generation R454B refrigerant for improved environmental performance and efficient operation.
-
Quiet & Smart Comfort – Olivia Midnight wall-mounted units feature whisper-quiet operation, advanced air filtration, Wi-Fi capability, and multiple comfort modes for everyday convenience.
-
Expert Verdict – An excellent premium mini split system for larger homes, additions, or offices, combining Hyper Heat technology, energy efficiency, and sleek Midnight indoor units for year-round comfort.
Q&A
Maintenance Tips
-
Clean the washable air filters every 2–4 weeks to maintain optimal airflow, heating, and cooling efficiency.
-
Keep the indoor units and outdoor condenser free of dust, leaves, and debris to ensure reliable performance and proper airflow.
-
Wipe the indoor units with a soft, damp cloth and avoid abrasive cleaners or harsh chemicals that may damage the finish.
-
Inspect condensate drain lines regularly to prevent clogs, leaks, and water damage.
-
Schedule annual professional maintenance to inspect refrigerant levels, electrical connections, and overall system performance for maximum efficiency.
Damage 
Loss 
Theft 
