Midea Advanced Series 27,000 BTU 4-Port Multi-Zone Heat Pump Outdoor Unit (-25°C) – Supplied & Professionally Installed by 4Most Energy
The Midea Advanced Series MO4EX-H27B-2A is a 27,000 BTU, 4-port multi-zone outdoor heat pump designed for homeowners seeking efficient, year-round comfort across multiple living spaces. Engineered to provide reliable heating in outdoor temperatures as low as -25°C (-13°F), this high-performance system connects up to four compatible indoor units, allowing each room to maintain its own independent temperature while operating from a single outdoor condenser.
Powered by Midea's advanced inverter compressor technology, the system continuously adjusts compressor speed and fan operation to match heating and cooling demand. This minimizes energy consumption, reduces temperature fluctuations, and delivers quieter operation compared with conventional fixed-speed systems.
The MO4EX-H27B-2A delivers a rated cooling capacity of 27,000 BTU, with an operating capacity range of 7,200–32,000 BTU, providing dependable performance through both hot summers and harsh Canadian winters.
Proper installation is essential for achieving the published efficiency ratings. The outdoor unit must be correctly sized according to the home's heating and cooling load, indoor unit combination, refrigerant piping lengths, and electrical requirements. Professional installation also ensures proper refrigerant charging, line set sizing, condensate management, airflow balancing, and electrical protection.
Using environmentally improved R454B refrigerant, the MO4EX-H27B-2A is compatible with a wide range of ducted and ductless indoor units, making it an excellent solution for new construction, renovations, home additions, or replacing older multi-zone systems while delivering outstanding comfort and energy efficiency.
Why Install the MO4EX-H27B-2A with 4Most Energy?
- Advanced inverter compressor technology
- Supports up to 4 indoor zones
- Individual temperature control for each room
- Compatible with both ducted and ductless indoor units
- Uses environmentally improved R454B refrigerant
- Heating operation down to -13°F (-25°C)
- High seasonal efficiency with 25.0 SEER2
- Quiet outdoor operation
- Flexible piping lengths for larger homes
- Suitable for new construction or retrofit applications
| Specification | Value |
|---|---|
| Model | MO4EX-H27B-2A |
| Product Type | Multi-Zone Heat Pump Outdoor Unit |
| Rated Cooling Capacity | 27,000 BTU/hr |
| Cooling Capacity Range | 7,200–32,000 BTU/hr |
| Rated Heating Capacity | 27,000 BTU/hr |
| Heating Capacity @47°F | 27,000 BTU/hr |
| Heating Operating Temperature | -13°F to 75°F (-25°C to 24°C) |
| Cooling Operating Temperature | -13°F to 122°F (-25°C to 50°C) |
| Refrigerant | R454B |
| Compressor Type | Rotary Inverter |
| Efficiency | 25.0 SEER2 |
| HSPF2 | 9.5 |
| EER2 | 13 |
| COP | 3.8 |
| Electrical Supply | 208/230V, 1 Phase, 60Hz |
| MCA | 23 A |
| MOCP | 25 A |
| Outdoor Sound Level | 61 dBA |
| Outdoor Airflow | 2,131 CFM |
| Liquid Line | 4 × 1/4 in |
| Gas Line | 3 × 3/8 in + 1 × 1/2 in |
| Maximum Total Pipe Length | 262 ft |
| Maximum Single Indoor Run | 115 ft |
| Maximum Elevation Difference | 49 ft |
| Dimensions (W×D×H) | 37-1/4 × 16-1/8 × 31-7/8 in |
| Net Weight | 139 lb |
| Model | Capacity | Recommended Home Size | Occupants |
|---|---|---|---|
| MO4EX-H27B-2A | 27,000 BTU | Approximately 1,500–2,500 sq ft (depending on design load and indoor unit selection) | 3–5 occupants |
Multi-zone ODU Installation Manual
Step 1 Request your installation quote.
Step 2 Complete an in-home system sizing consultation.
Step 3 Receive equipment recommendations based on your home's heating and cooling requirements.
Step 4 Schedule your installation date.
Step 5 Removal of existing equipment (if applicable).
Step 6 Installation of the outdoor condenser, indoor units, refrigerant piping, electrical connections, and controls.
Step 7 Pressure testing, evacuation, refrigerant verification, and electrical safety inspection.
Step 8 Final commissioning, system testing, homeowner walkthrough, and operating instructions.
The Midea MO4EX-H27B-2A includes the manufacturer's limited parts warranty, subject to product registration and manufacturer terms.
4Most Energy also provides a labour warranty on qualifying professional installations for added peace of mind.
If a warranty issue arises, our team will assist with diagnosing the problem, coordinating any applicable manufacturer warranty claims, and completing eligible repairs.
Optional Maintenance Plan
Maintenance plans starting from $12.99/month help protect your investment and may include:
- Annual system inspection
- Performance testing
- Coil cleaning
- Refrigerant and electrical checks
- Priority service scheduling
- Extended equipment reliability
Ask a 4Most Energy representative about available maintenance plan options during installation.
