Research & Development

R&D

of Heat Pump
Heat Pump

A heat pump is an energy-efficient device that absorbs heat energy from surrounding environments such as air, water, or geothermal sources and utilizes it for heating, cooling, and hot water supply.
It operates based on the principle of transferring heat using electrical energy, making it environmentally friendly as it does not directly burn fossil fuels.

1. Can operate independently using either seawater heat or air heat
- When seawater heat is needed, it can operate solely on seawater heat, and when seawater is insufficient or at a low temperature,
   it can switch to air heat operation.

2. High-efficiency heat exchanger adoption
- Uses high-efficiency titanium and FIN & TUBE heat exchangers with excellent corrosion resistance, ensuring stability and efficiency.

3. Can produce high-temperature water above 55℃, enhancing usability.

4. Independent three-cycle refrigerant circuit allows for 33%, 66% stepwise backup operation.

5. Excellent performance in cold regions
- Can operate on air heat even at -20℃ during winter.

6. Easy maintenance
- Designed for easy removal of sludge and sediment.

7. Continuous heating operation in winter
- Enables continuous heating through independent cycle defrosting operation.

Items DH-70CSW
Seawater source Air source
Capacity Heating kW 248.2 138.5
Cooling kW 263.0 233.4
Power
consumption
Heating kW 40.8 33.4
Cooling kW 56.5 74.3
External dimensions(LxWxH) mm 1,800×4,382×2,315
Weight kg 3,000
Control method PCL temperature control
Safety devices Phase detection relay, Overcurrent relay, Flow switch, High/low pressure switch, Anti-freezing
※ The above products are subject to changes in design and specifications without prior notice for quality improvement.
Detailed specifications can be checked on a PC.
1. Utilization of infinite energy source from seawater
- Uses the limitless energy of seawater, making it economical.

2. High-efficiency heat exchanger adoption
- Uses high-efficiency titanium and FIN & TUBE heat exchangers with excellent corrosion resistance,
   ensuring stability and efficiency.

3. Easy maintenance
- Designed for easy removal of sludge and sediment.

4. Improved growth efficiency
- Increases production and shortens the growth period for various live fish and juvenile fish.

5. Excellent thermal efficiency for energy savings
Items DH-70SC
Capacity Heating kW 266.4
Cooling kW 247.8
Power
consumption
Heating kW 46.1
Cooling kW 60.5
External dimensions(LxWxH) mm 1,600×2,800×2,050
Weight kg 1,600
Control method PCL temperature control
Safety devices Phase detection relay, Overcurrent relay, Flow switch, High/low pressure switch,Anti-freezing
※ The above products are subject to changes in design and specifications without prior notice for quality improvement.
Detailed specifications can be checked on a PC.
1. Adoption of a two-stage compression cycle
- Uses an intercooler and vapor injection to save energy and improve performance/COP.

2. Excellent low-temperature heating performance
- Maintains outstanding heating performance even at an outdoor temperature of -15℃.

3. Use of an electronic expansion valve
- Real-time discharge temperature control prevents oil carbonization and compressor damage.

4. Adoption of a high-efficiency large-capacity fin-tube heat exchanger
- Manufactured in-house and applied with ceramic-coated fins for excellent corrosion resistance.

5. Application of a short hot gas defrost system
- Enhances equipment efficiency.

6. Adoption of a world-class SWEP heat exchanger

7. Modular design
- Easy to assemble and simple to install.

8. Hot water supply available during cooling operation
- Provides hot water during cooling operation,
   achieving high-efficiency operation with a COP of over 6.0.

9. Real-time alarm history monitoring available
- Ensures stable product use with 200 diagnostic functions, including high/low pressure,
   phase reversal prevention, overload prevention, and insufficient flow.

10. Parallel-configured cooling system
- Allows for independent cooling circuits, enabling maintenance without stopping the entire system.

11. Automatic energy adjustment based on heat load variation
- Internal modules automatically control energy output based on changes in refrigerant and heat exchange water temperature, ensuring broad energy adjustment range and economic operation.

Items DH-11MAW DH-20MAW DH-30MAW DH-40MAW DH-50MAW DH-60MAW
Capacity Heating kW 42.48 68.90 103.30 137.80 186.70 208.20
Cooling kW 33.61 61.20 91.80 122.40 143.10 154.69
Power
consumption
Heating kW 12.91 21.30 31.90 42.50 71.70 58.98
Cooling kW 13.60 20.30 30.40 40.60 54.60 61.14
External dimensions(LxWxH) mm 1,200x1,200x2,350 2,200x1,200x2,350 3,200x1,250x2,350 2,800x2,200x2,350 1,800x3,300x2,350
Weight kg 600 1,100 1,800 1,600 2,300 2,400
Control method PCL temperature control
Safety devices Phase detection relay, Overcurrent relay, Flow switch, High/low pressure switch,Anti-freezing
※ The above products are subject to changes in design and specifications without prior notice for quality improvement.
Detailed specifications can be checked on a PC.
1. Wide product lineup
- Holds certification for 12 models.

2. Maximum capacity per single model
- Holds certification for the largest capacity model in Korea (150RT class).

3. Compact design
– Minimizes installation area relative to capacity.

4. Best performance and system efficiency (based on minimum flow rate).

5. Adoption of eco-friendly new refrigerant (R410A).

6. All operational conditions are displayed on a Korean LCD screen for easy monitoring.

7. Fully automated operation via PLC with high/low pressure, phase reversal prevention, overload prevention, real-time temperature display, automatic fault diagnosis, RS485 remote control, and anti-freezing protection, ensuring more efficient and stable usage.
Items DH-05GW DH-10GW DH-20GW DH-30GW DH-40GW DH-50GW DH-50GWL DH-50GWS DH-50GWX DH-80GW DH-151GW DH-151GWL
Capacity Heating kW 18.86 37.31 73.11 107.12 145.10 177.98 190.78 182.98 173.28 290.36 528.93 555.04
Cooling kW 19.25 37.85 80.42 115.58 146.91 175.44 198.95 188.24 185.21 281.31 558.59 560.94
Power
consumption
Heating kW 5.17 10.22 19.32 27.67 38.39 47.73 48.28 46.91 46.24 79.78 142.81 148.38
Cooling kW 3.93 7.87 15.01 22.96 30.40 37.47 36.42 34.83 36.42 62.46 115.14 105.09
External dimensions(LxWxH) mm 500x640x807 1,000x750x850 1,000x750x1,450 1,000x750x1,550 1,200x750x1,750 1,300x750x1,950 1,200x800x1,730 1,800x770x900 1,850x750x2,100 3,000x1,100x2,100
Weight kg 120 350 450 530 865 900 850 1,430 3,050 2,950
Control method PCL temperature control
Safety devices Phase detection relay, Overcurrent relay, Flow switch, High/low pressure switch,Anti-freezing
※ The above products are subject to changes in design and specifications without prior notice for quality improvement.
※ Heating capacity: Based on hot water inlet at 40℃ and geothermal inlet at 5℃ (ground loop).
※ Cooling capacity: Based on chilled water inlet at 12℃ and geothermal inlet at 25℃ (ground loop).
Detailed specifications can be checked on a PC.
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