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GDD Series Split Fresh Air Handling Unit

Split-type indoor and outdoor unit design, with the indoor unit concealed in the ceiling, suitable for multi-story or mid-rise residential buildings.

The indoor unit is only 255 mm thick, ultra-thin design, equivalent to the height of a bottled water, saving installation space.

Uses comprehensive noise reduction technology, with indoor unit noise below 40 dB(A).

Supply air temperature and humidity can be quickly adjusted as needed, making it more convenient for residents and more energy-efficient for the system.

Indoor installation eliminates the risk of frost cracking in winter.

Equipped with medical-grade filters, PM2.5 removal rate of 99.9%, also filtering pollen, cotton fluff, and inactivating bacteria.

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Product Advantages

indoor and outdoor unit design

Split-type Indoor and Outdoor Unit Design

Indoor unit concealed in the ceiling, suitable for multi-story or mid-rise residential buildings

Minimalist & Ultra-thin Design

Sleek and Stylish Appearance

Indoor unit only 255 mm thick, equivalent to the height of a bottled water, saving installation space

Quiet & Reliable

Indoor unit noise below 40 dB(A)

Indoor installation, no risk of frost cracking in winter

High-efficiency PM & Bacteria Protection

Medical-grade filtration, PM2.5 removal rate 99.9%

Also filters pollen and cotton fluff, inactivates bacteria

split type

Indoor and Outdoor Unit

Ultra-thin

Indoor unit thickness only 255 mm

Magic Humidity

Patented Humidity Control Technology

Desert Wind

High-efficiency Dehumidification Technology

≤40 dB(A)

Noise Suppression

  • split type
    split type
  • Ultra-thin
    Ultra-thin
  • Magic Humidity
    Magic Humidity
  • Desert Wind
    Desert Wind
  • ≤40 dB(A)
    ≤40 dB(A)

Basic Parameters

Model GDD-300 GDD-400 GDD-500
Airflow Rate Rated Airflow Rate m³/h 300 400 500
Cooling & Dehumidification Mode Rated Cooling Capacity kW 5.5 5.1 7.6
Rated Dehumidification Capacity kg/h 4.5 3.6 5.9
Heating & Humidification Mode Rated Heating Capacity kW 3.1 4.2 5.2
Rated Humidification Capacity kg/h 1.7 2.3 2.9
External Static Pressure Standard External Static Pressure Pa 120 150 150
Installed Power Input Standard Static Pressure kW 2.4 3.4 4.2
Noise Level Standard Static Pressure dB(A) 42 45 47
Power Supply 220V / 50Hz
Humidification Humidification Water Flowrate L/h 1.9 2.5 3.2
Humidifier Water Connection DN DN15
Drainage Drainage Pipe Diameter DN DN15
Overflow Pipe Diameter DN DN20
Weight Net Weight kg 65.6 72.8 91.0
Compressor Type Inverter Compressor
Quantity Units 1
Refrigerant R410A
Humidification Circulation Pump Type Intelligent Circulation Pump
Quantity Units 1
Drain Pump Type Intelligent Submersible Pump
Quantity Units 1
Indoor Unit Dimensions L × W × H (mm) 1346*810*255 1346*910*255 1520*1140*255
Outdoor Unit Dimensions 795*350*556 795*350*556 862*372*733
Communication Protocol Modbus RTU Protocol
Recommended Coverage Area ㎡ 90-140 120-180 150-230

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