Tosot TM30H4O Multi-Zone Mini Split Heat Pump System – 3 Zone – 24,900 BTU Cooling / 37,800 BTU Heating – 21 SEER – WiFi Enabled
Engineered for superior zoned comfort, energy efficiency, and cold-weather performance, the TM30H4O is a premium 3-zone ductless solution ideal for homes and light commercial spaces.
🌟 Product Overview
The Tosot TM30H4O Multi-Zone Mini Split Heat Pump System is built to deliver optimal climate control across three zones, allowing for personalized comfort in each room. With a total cooling capacity of 24,900 BTUs and heating capacity of 37,800 BTUs, this system operates with ultra-quiet efficiency and modern controls—including WiFi compatibility for smartphone-based operation.
This setup includes one 12,000 BTU and two 9,000 BTU wall-mounted air handlers, each able to operate independently. Backed by Gree’s G10 inverter-driven compressor and cutting-edge heat pump technology, the TM30H4O excels in year-round performance—even in extreme climates down to -4°F.
The system is ENERGY STAR rated, AHRI certified, and includes advanced features such as Intelligent Defrost, Auto Restart, Sleep Mode, and Multiple Fan Speeds. Perfect for homeowners upgrading HVAC performance or contractors outfitting residential units with zoned systems.
🧰 Key Features – Explained
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3-Zone Ductless Heat Pump System: Independently control up to three areas using two 9K and one 12K BTU air handlers.
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Inverter Compressor: Gree G10 technology adjusts performance to match real-time demand, reducing energy usage and temperature fluctuations.
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WiFi-Enabled: Manage zones from anywhere using the Tosot Smart app on iOS or Android.
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High SEER Efficiency: 21 SEER and 10.2 HSPF ratings deliver significant long-term energy savings over traditional systems.
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Cold-Climate Capable: Maintains heating output down to -4°F—ideal for garages, basements, cabins, and northern regions.
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Quiet Comfort: Indoor units operate at whisper-quiet levels for bedrooms, offices, and nurseries.
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Dehumidification Mode: Reduces moisture while maintaining room temperature—perfect for humid environments.
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Intelligent Defrost: Reduces frost build-up and downtime during heating cycles, improving winter efficiency.
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Auto Swing Louvers: Vertical & horizontal swing ensures balanced room-wide air distribution.
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LED Display & Remote Control: Modern interface with hidden readout and full-featured wireless remote.
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Soft Start & Auto Restart: Avoids electrical surges and resumes previous settings after a power outage.
📐 System Specifications
| Outdoor Unit Model |
TM30H4O |
| Indoor Units |
(2) TW09HQ2C2DI, (1) TW12HQ2C2DI |
| Total Cooling Capacity |
24,900 BTU |
| Total Heating Capacity |
37,800 BTU |
| Compressor Type |
G10 Inverter – Variable Speed |
| System Type |
Heat Pump – Ductless |
| Zones Supported |
3 |
| SEER Rating |
21 |
| HSPF Rating |
10.2 |
| Refrigerant |
R410A |
| Voltage |
208/230V, 1 Phase |
| Min. Operating Temp |
-4°F (Heating) |
| WiFi Control |
Yes – Smart App Compatible |
| Outdoor Unit Dimensions (HxWxD) |
43.4" x 42.5" x 17.3" |
| Outdoor Unit Weight |
Approx. 170 lbs |
| Certifications |
AHRI, UL, cUL, Energy Star |
| Parts Warranty |
5 Years |
| Compressor Warranty |
7 Years |
📊 BTU Sizing Chart – Determine the Right Capacity Per Room
Use this chart to size each indoor zone correctly. For multi-zone systems, total the BTUs required for each space to match the overall system capacity.
Area To Be Cooled Capacity Needed (BTUs Per Hour)
150 to 250 square feet 6,000 BTUs
250 to 300 square feet 7,000 BTUs
300 to 350 square feet 8,000 BTUs
350 to 400 square feet 9,000 BTUs
400 to 450 square feet 10,000 BTUs
450 to 550 square feet 12,000 BTUs
550 to 700 square feet 14,000 BTUs
700 to 1,000 square feet 18,000 BTUs
1,000 to 1,200 square feet 21,000 BTUs
1,200 to 1,400 square feet 23,000 BTUs
1,400 to 1,500 square feet 24,000 BTUs
1,500 to 2,400 square feet 36,000 BTUs
2,400 to 3,200 square feet 48,000 BTUs
Need help sizing or configuring your zones?
Contact us and we’ll help tailor the system to your space!
