Technical features (table) 
MULTI-SPLIT
OUTDOOR UNITS · Outdoor Units
SAC4M-U28SKWA/I
Cooling: 8.0 kW
Heating: 8.0 kW
Area: up to 80-90 m2
The SAC4M-U28SKWA/I is a high-capacity inverter multi-split outdoor unit with a performance rating of 28,000 BTU (8.0 kW cooling / 8.0 kW heating), designed to connect up to 4 indoor units simultaneously and deliver reliable year-round heating in cold conditions down to -20°C. We recommend this 4-port low-temperature outdoor block for larger three- to four-bedroom apartments, spacious single-floor offices, or multi-level townhouses where you need to coordinate independent microclimates across four separate zones (such as "three bedrooms + a living room" or "three offices + a reception area") with a total combined area of up to 85–90 m², all powered by a single outdoor unit.
MODELS
Official warranty
Delivery across Ukraine
Year-Round Comfort
A high-performance inverter outdoor unit designed for stable heating in winter conditions down to -20°C and reliable cooling up to +43°C. Electronic expansion valves (EEVs) dynamically balance refrigerant across 4 ports for precise room temperature control (±0.5°C).
Technical Advantages & Features
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Energy Efficiency (A++ / A+): Advanced DC inverter system delivering 8.0 kW cooling and 8.0 kW heating capacity with optimized power consumption.
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Twin-Rotary Compressor: Features dual-layer sound insulation and balanced rotation to keep outdoor noise levels down to 55 dB.
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Eco-Friendly R32: Uses R32 refrigerant for 10% higher thermal conductivity and reduced charge volume compared to older refrigerants.
Comparison with SAC3M-U24SKWA/I
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4-Port Capacity: Connects up to 4 indoor units (vs 3 ports on the SAC3M model).
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Higher Output: 8.0 kW capacity easily covers larger total areas (up to 85–90 m²).
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Flexibility: Ideal for expanding a 3-zone layout with a 4th room without installing an extra outdoor block.
Best Suited For:
3- to 4-room apartments, townhouses, or offices (up to 90 m²) requiring multi-zone climate control, low noise, and effective winter heating down to -20°C.
Might Not Be Suited For:
Basic summer-only cooling or smaller setups under 70 m² with up to 3 rooms (where the SAC3M-U24SKWA/I is a more compact choice).
PACKAGE CONTENTS
- Indoor unit
- Outdoor unit
- Remote control
- Installation manual
- Warranty card
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Building facade aesthetics
A multi-split system with a single outdoor unit doesn't spoil the building's appearance. Instead of 5 units on the facade, there is just 1.
Individual control of each unit
Air parameters in one room are independent of another. The electronic refrigerant-distribution system precisely maintains the temperature in each room.
Uneven load principle
The combined capacity of the indoor units can exceed the output of the outdoor unit. Uneven thermal load increases system efficiency and minimizes the outdoor unit's size.
Wide choice of indoor units
Various types of climate equipment can be used for room air conditioning. SENSEI offers a range of models with different designs and feature sets
KEY SPECIFICATIONS
- Cooling (kW)
- 8.0
- Heating (kW)
- 8.0
- Recommended Area (m²)
- 80-90
- Refrigerant Type
- R32
- Design
- Multi Split
- Indoor Unit
- Wall-mounted
- Compressor Type
- Inverter
- Main Modes
- Cooling / Heating
- Power Supply
- 220~240/50/1
- Electrical Protection Class
- Class I
- Moisture Protection Class
- IPX4
- Type (Free Match)
- up to 4 indoor units
- Manufacturer
- GMCC
- Cooling (BTU/h)
- 27978（9894～30708）
- Compressor model
- DA230S2C-31MT
- Heating (BTU/h)
- 30708（8530～34120）
- Refrigerant charge (g)
- 2600
- Mean cooling power (kW)
- 8,2
- Mean heating power (kW)
- 8,3
- refrigerant_topup
- 15g/m beyond 20m
PERFORMANCE
- Air Flow (m³/h)
- 4500
- EER Energy Efficiency
- 3,73
- COP Energy Efficiency
- 4,09
- SEER Energy Efficiency
- 7,2
- SCOP Energy Efficiency
- 4,1
- Cooling Current (A)
- 9,6
- Heating Current (A)
- 9,6
- Cooling energy class
- A++
- Heating energy class
- A+
SOUND AND CONVENIENCE
- Noise level, max/min (dB(A))
- 53/59
- Noise level, max (dB(A))
- 68
INSTALLATION AND PIPING
- Maximum Height Difference (m)
- 15
- Maximum Line Length (m)
- 60
- Operating Temperatures (Heating)
- -10~24
- Operating Temperatures (Cooling)
- -15~43
- Liquid Pipe Diameter (mm)
- 6.35×4
- Gas Pipe Diameter (mm)
- 9.52×4
- Max mains length, each (m)
- 25
OUTDOOR UNIT DIMENSIONS AND WEIGHT
- Outdoor Unit Weight (kg)
- 67
- Packaged Dimensions (W×H×D, mm)
- 1110×980×460
- Weight / Packaged (kg)
- 77
- Outdoor Unit Dimensions (W×D×H)
- 950×840×340
