Multi Split R454B Series US
Short Description:
The Multi Split R454B Series US is a high-efficiency inverter multi split air conditioning system designed for flexible residential and light commercial applications. Using eco-friendly R454B refrigerant, the system delivers excellent energy performance with lower environmental impact.
One outdoor unit can connect with up to five indoor units, allowing flexible combinations for different room layouts and installation requirements. With reliable heating performance down to –25°C, intelligent defrost control, and outdoor unit self-cleaning technology, this series provides stable comfort, easier maintenance, and dependable operation throughout the year.
Key Features
Eco-Friendly R454B Refrigerant
Uses R454B refrigerant with lower GWP, helping reduce environmental impact while maintaining high system efficiency.
Flexible Multi-Connection Design
One outdoor unit supports up to 5 indoor units, compatible with various indoor unit types including wall-mounted, cassette, duct, floor-ceiling, and console units.
Intelligent Auto Defrost
Automatically detects frost buildup and starts the defrost cycle when needed, ensuring stable heating performance in cold weather.
Easy Installation & Service Port
Equipped with a one-port refrigerant recovery design, making installation, maintenance, and servicing more convenient.
Outdoor Unit Self-Cleaning Function
Reverse fan operation helps remove dust and debris from the condenser fins, improving heat exchange efficiency and long-term performance.
Low Ambient Heating Performance
Provides reliable heating operation even when the outdoor temperature drops to –25°C.
Chassis Heater Belt
Helps maintain stable operation and improves heating reliability under extremely cold ambient conditions.
Wide Operating Range
Designed for year-round comfort, with cooling operation from –15°C to 55°C and heating operation down to –25°C.
Energy Efficient & Quiet Operation
Inverter technology delivers high SEER2 performance, precise temperature control, and low operating noise.
| Model | M2SOV-18HDTB-US | M3SOV-27HDTB-US | M4SOV-36HDTB-US | M5SOV-42HDTB-US | |||
| Type | cooling&heating | cooling&heating | cooling&heating | cooling&heating | |||
| Power supply | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | |||
| With E-Star IDU |
Rated cooling capacity 95°F/35℃ | Btu/h | 18000 | 27000 | 35000 | 42000 | |
| Heating Rated Capacity |
47 °F/8.33℃ | Btu/h | 20000 | 27000 | 35000 | 42000 | |
| SEER2 | Btu/W.h | 24.5 | 24.5 | 23 | 21 | ||
| COP247 °F/8.33℃ | WW | 3.51 | 3.51 | 3.51 | 3.41 | ||
| COP25°F/-15℃ | WW | 2 | 2 | 2 | 2 | ||
| With AHRI IDU |
Rated cooling capacity 95°F/35℃ | Btu/h | 20000 | 28000 | 37000 | 45000 | |
| Heating Rated Capacity |
47 °F/8.33℃ | Btu/h | 20000 | 28000 | 37000 | 45000 | |
| SEER2 | Btu/W.h | 20 | 20 | 19 | 19 | ||
| COP247 °F/8.33℃ | WW | 3.21 | 3.21 | 3.21 | 3.11 | ||
| COP25°F/-15℃ | WIW | 1.8 | 1.8 | 1.8 | 1.8 | ||
| Others | Room temperature | Indoor(cooling/ heating) |
℃ | 16℃~30℃ | 16℃~30℃ | 16℃~30℃ | 16℃~30℃ |
| Outdoor(cooling/heating) | ℃ | -15~55℃/-25~30℃ | -15~55℃/-25~30℃ | -15~55℃/-25~30℃ | -15~55℃/-25~30℃ | ||
| Ambinet temperature |
Indoor(cooling/ heating) |
F | 61~86 | 61~86 | 61~86 | 61~86 | |
| Outdoor(cooling/heating) | F | 5~131/-13~86 | 5~131/-13~86 | 5~131/-13~86 | 5~131/-13~86 | ||
| Model | MMSB-09HVT-USR2-1 | MMSB-12HVT-USR2-1 | MMSB-18HVT-USR2-1 | MMSB-24HVT-USR2-1 | ||
| Type | cooling&heating | cooling&heating | cooling&heating | cooling&heating | ||
| Power supply | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | ||
| Rated Cooling (95°F/35℃) |
Rated cooling capacity (95°F/35℃) |
Btu/h | 9000 | 12000 | 18000 | 24000 |
| Rated Heating | Rated Heating capacity(47 °F/8.3℃) |
Btu/h | 10000 | 12400 | 19000 | 24400 |
| Suitable area | sq.ft | Up to 400 | Up to 550 | Up to 1000 | Up to 1500 | |
| Ambinet temperature |
Indoor(cooling/ heating) |
℃ | >=17/<=30 | >=17/<=30 | >=17/<=30 | >=17/<=30 |
| Ambinet temperature |
Indoor(cooling/ heating) |
° F | >=62/<=86 | >=62/<=86 | >=62/<=86 | >=62/<=86 |
| Model | MMSB-09HVT-USHHR2-1 | MMSB-12HVT-USHHR2-1 | MMSB-18HVT-USHHR2- | MMSB-24HVT-USHHR2- | ||
| Type | cooling&heating | cooling&heating | cooling&heating | cooling&heating | ||
| Power supply | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~160Hz/P | ||
| Rated Cooling (95°F/35℃) |
Rated cooling capacity (95°F/35℃) |
Btu/h | 9000 | 12000 | 18000 | 24000 |
| Rated Heating | Rated Heating capacity(47°F/8.3℃) |
Btu/h | 10000 | 12000 | 18500 | 24000 |
| Suitable area | sq.ft | Up to 400 | Up to 550 | Up to 1000 | Up to 1500 | |
| Ambinet temperature |
Indoor(cooling/ heating) |
℃ | >=17/<=30 | >=17/<=30 | >=17/<=30 | >=17/<=30 |
| Ambinet temperature |
Indoor(cooling/ heating) |
° F | 62~89/32~86 | 62~89/32~86 | 62~89/32~86 | 62~89/32~86 |
| Model | MDV-09HDTB-US | MDV-12HDTB-US | MDV-18HDTB-US | MDV-24HDTB-US | ||
| Type | cooling&heating | cooling&heating | cooling&heating | cooling&heating | ||
| Power supply | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | ||
| Rated cooling capacity 95 °F/35℃ | Btu/h | 9000 | 12000 | 18000 | 24000 | |
| Rated heating capacity 47°F/8.33℃ | Btu/h | 9500 | 12000 | 18000 | 24000 | |
| Indoor airflow | m³/ h | 500/500 | 500/500 | 850/900 | 1150/1150 | |
| 1cfm≈1.7m³/h | CFM | 294/294 | 294/294 | 500/529 | 676/676 | |
| Noise level (Turbo/High/Med./ Low/Mute) |
dB(A) | up to 100 | up to 100 | up to 100 | up to 120 | |
| Model | MCV-09HDTB-US | MCV-12HDTB-US | MCV-18HDTB-US | MCV-24HDTB-US | ||
| Type | cooling&heating | cooling&heating | cooling&heating | cooling&heating | ||
| Power supply | 208/230V~160Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | ||
| Rated cooling capacity 95°F/35℃ | Btu/h | 9000 | 12000 | 18000 | 24000 | |
| Rated heating capacity 47°F/8.33℃ | Btu/h | 9500 | 12000 | 18000 | 24000 | |
| Indoor airflow | m³/ h | 550/570 | 600/630 | 700/750 | 1400/1500 | |
| 1cfm≈1.7m³/h | CFM | 323/335 | 352/370 | 411/441 | 823/882 | |
| Noise level (Turbo/High/Med./ Low/Mute) |
dB(A) | 42 | 42 | 45 | 46/42/39 | |
| Model | MEV-18HDTB-US | MEV-24HDTB-US | ||
| Type | cooling&heating | cooling&heating | ||
| Power supply | 208/230V~/60Hz/1P | 208/230V~/60Hz/1P | ||
| Rated cooling capacity 95°F/35℃ | Btu/h | 9000 | 12000 | |
| Rated heating capacity 47 °F/8.33℃ | Btu/h | 9500 | 12000 | |
| Indoor airflow | m³/ h | 550/570 | 600/630 | |
| 1cfm≈1.7m³/h | CFM | 323/335 | 352/370 | |
| Noise level(Turbo/High/Med./Low/Mute) | dB(A) | 42 | 42 | |
