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SPRSUN EVI air source heat pumps are designed for domestic/commercial house heating and cooling in cold areas where lowest air temperature is above -25℃.
● Efficient and Energy-saving
Air source heat pumps absorb hot energy from the air freely, and the electricity is only used to drive the compressor to pump up the heat from the air. So, it consumes just a quarter of traditional electric heaters, saving a lot of electric costs for users.
● Green and Environmental Protection
By using air hot energy and electric energy, there is no harmful gas being discharged during the operation of heat pumps.
● Usable All-weather
All weather operation: stable operation without being influenced by any windy, rainy or snowy weather.
● Endurable
The Enhanced Vapor Injection (EVI) technology from Copeland compressor with crankcase heater for special cold area, Danfoss electronic expansion valve, Eaton AC contactor and thermal relay and other brand components of the heat pump guarantee high quality and a long lifespan. All of our screws and clips (both external and internal) are stainless steel. The cabinets we are using are made of GALVANIZED STEEL, making them more rust resistant, durable and affordable.
● Multiple Protections
For example, if water flow is not enough in the system, the system will show high pressure protection and stop the heat pump automatically to protect the compressor from being damaged. Also, there is high current protection: if the power supply is not stable, the heat pump will show the high current error to stop the heat pump and avoid compressor damage.
● Linkage Function
External signal on/off function
● Guaranteed Safety
Complete isolation of water and electricity avoids electric shock, explosion and poisoning; LCD screen digital controller for automatic operation
● Convenient
The EVI heat pump is easy to install in many places, such as garage, balcony, kitchen, etc.
| Model | | CGK/C-12(LHC) | CGK/C-12(LHC) |
| Power supply | V | 220V～240V/50Hz/1ph | 380V～415V/50Hz/3ph |
| Refrigerant | R407C | ||
| Heating capacity | KW | 8.2 | 9.2 |
| Input power of heating | KW | 2.45 | 2.75 |
| COP | | 3.35 | 3.35 |
| Cooling capacity | KW | 7.38 | 7.8 |
| Input power of cooling | KW | 2.48 | 2.85 |
| EER | | 2.97 | 2.74 |
| Rated current | A | 12.4 | 5.2 |
| Max current | A | 17.3 | 7.3 |
| Fan motor power | W | 90 | 90 |
| Fan motor quantity | Piece | 1 | 1 |
| Water flow | L/h | 1567 | 1758 |
| Water pressure drop | Kpa | ≤30 | ≤30 |
| Net weight | kg | 112 | 112 |
| Gross weight | kg | 118 | 118 |
| Noise | db | 52 | 52 |
| Classification of waterproof | IPX4 | ||
| Electric shock proof grade | I | ||
| Pipe size (internal thread) | mm | 25 | 25 |
| Dimension | mm | 830*490*1160 | 830*490*1160 |
| Packing dimension | mm | 910*500*1320 | 910*500*1320 |
| Compressor model/quantity | ZW30KSE*1 | ZW34KSE*1 | |
Rated working condition:
- Heating: air temp (DB/WB): 7℃/6℃; water temp (inlet/outlet): 40℃/45℃;
- Cooling: air temp(DB/WB): 35℃/24℃, water temp (inlet/outlet): 12℃/7℃.
EVI air source heat pumps are designed for house heating and cooling. User can change the working mode by operating the wired panel of the controller. Compressor starts/stops according to return water temperature. When all rooms reach preset temperature by room thermostat, the heat pump will be turned off through linkage switch.
Wide Range of Applications: these EVI low temperature heat pumps could meet the heating and cooling requirements of different places, such as villas, houses, schools, factories, hotels, hospitals, spa centers, sauna centers, greenhouses, flower gardens, farms, etc.
Why can SPRSUN EVI heat pumps work at -25℃?
Because of the Enhanced Vapor Injection (EVI) technology from Copeland compressor with crankcase heater for special cold areas, SPRSUN designed EVI gas piping system and controlling system make EVI air source heat pumps work stably in the low temperature condition.
Our EVI air to water heat pumps adopt high quality components, such as Copeland enhanced vapour injection (EVI) technology compressor, Danfoss electronic expansion valve and Eaton AC contactor and thermal relay.
It is easy to install SPRSUN EVI air to water heat pumps, shown as the following Installation Diagram:
The COP of SPRSUN EVI air source heat pumps at different working conditions:
| Air temp ℃ | Hot water temp ℃ | ||
| | W35 | W45 | W55 |
| -25 | 2.21 | 1.85 | 1.50 |
| -20 | 2.49 | 2.08 | 1.69 |
| -12 | 2.89 | 2.41 | 1.97 |
| -7 | 3.25 | 2.62 | 2.21 |
| 2 | 3.65 | 2.95 | 2.48 |
| 7 | 4.15 | 3.35 | 2.82 |
| 12 | 4.52 | 3.72 | 3.13 |
| 20 | 5.07 | 4.28 | 3.60 |
We care every detail on what you need!
Super Low Noise: Fitted cut clothes for compressor and strong pads to avoid vibration
Anti-corrosion: Aluminum edging
Exellent Welding Guarantee No Leakage: Four-way valve welding protection
Energy Saving: 30mm thickness for insulation to prevent energy lost
User-friendly Design: Ram design using machine wire
Reliability of the Connection: Adopt automatic stamping machine from Taiwan
Related models are as below:
SPRSUN EVI air source heat pumps are designed for domestic/commercial house heating and cooling in cold areas where lowest air temperature is above -25℃.
● Efficient and Energy-saving
Air source heat pumps absorb hot energy from the air freely, and the electricity is only used to drive the compressor to pump up the heat from the air. So, it consumes just a quarter of traditional electric heaters, saving a lot of electric costs for users.
● Green and Environmental Protection
By using air hot energy and electric energy, there is no harmful gas being discharged during the operation of heat pumps.
● Usable All-weather
All weather operation: stable operation without being influenced by any windy, rainy or snowy weather.
● Endurable
The Enhanced Vapor Injection (EVI) technology from Copeland compressor with crankcase heater for special cold area, Danfoss electronic expansion valve, Eaton AC contactor and thermal relay and other brand components of the heat pump guarantee high quality and a long lifespan. All of our screws and clips (both external and internal) are stainless steel. The cabinets we are using are made of GALVANIZED STEEL, making them more rust resistant, durable and affordable.
● Multiple Protections
For example, if water flow is not enough in the system, the system will show high pressure protection and stop the heat pump automatically to protect the compressor from being damaged. Also, there is high current protection: if the power supply is not stable, the heat pump will show the high current error to stop the heat pump and avoid compressor damage.
● Linkage Function
External signal on/off function
● Guaranteed Safety
Complete isolation of water and electricity avoids electric shock, explosion and poisoning; LCD screen digital controller for automatic operation
● Convenient
The EVI heat pump is easy to install in many places, such as garage, balcony, kitchen, etc.
| Model | | CGK/C-12(LHC) | CGK/C-12(LHC) |
| Power supply | V | 220V～240V/50Hz/1ph | 380V～415V/50Hz/3ph |
| Refrigerant | R407C | ||
| Heating capacity | KW | 8.2 | 9.2 |
| Input power of heating | KW | 2.45 | 2.75 |
| COP | | 3.35 | 3.35 |
| Cooling capacity | KW | 7.38 | 7.8 |
| Input power of cooling | KW | 2.48 | 2.85 |
| EER | | 2.97 | 2.74 |
| Rated current | A | 12.4 | 5.2 |
| Max current | A | 17.3 | 7.3 |
| Fan motor power | W | 90 | 90 |
| Fan motor quantity | Piece | 1 | 1 |
| Water flow | L/h | 1567 | 1758 |
| Water pressure drop | Kpa | ≤30 | ≤30 |
| Net weight | kg | 112 | 112 |
| Gross weight | kg | 118 | 118 |
| Noise | db | 52 | 52 |
| Classification of waterproof | IPX4 | ||
| Electric shock proof grade | I | ||
| Pipe size (internal thread) | mm | 25 | 25 |
| Dimension | mm | 830*490*1160 | 830*490*1160 |
| Packing dimension | mm | 910*500*1320 | 910*500*1320 |
| Compressor model/quantity | ZW30KSE*1 | ZW34KSE*1 | |
Rated working condition:
- Heating: air temp (DB/WB): 7℃/6℃; water temp (inlet/outlet): 40℃/45℃;
- Cooling: air temp(DB/WB): 35℃/24℃, water temp (inlet/outlet): 12℃/7℃.
EVI air source heat pumps are designed for house heating and cooling. User can change the working mode by operating the wired panel of the controller. Compressor starts/stops according to return water temperature. When all rooms reach preset temperature by room thermostat, the heat pump will be turned off through linkage switch.
Wide Range of Applications: these EVI low temperature heat pumps could meet the heating and cooling requirements of different places, such as villas, houses, schools, factories, hotels, hospitals, spa centers, sauna centers, greenhouses, flower gardens, farms, etc.
Why can SPRSUN EVI heat pumps work at -25℃?
Because of the Enhanced Vapor Injection (EVI) technology from Copeland compressor with crankcase heater for special cold areas, SPRSUN designed EVI gas piping system and controlling system make EVI air source heat pumps work stably in the low temperature condition.
Our EVI air to water heat pumps adopt high quality components, such as Copeland enhanced vapour injection (EVI) technology compressor, Danfoss electronic expansion valve and Eaton AC contactor and thermal relay.
It is easy to install SPRSUN EVI air to water heat pumps, shown as the following Installation Diagram:
The COP of SPRSUN EVI air source heat pumps at different working conditions:
| Air temp ℃ | Hot water temp ℃ | ||
| | W35 | W45 | W55 |
| -25 | 2.21 | 1.85 | 1.50 |
| -20 | 2.49 | 2.08 | 1.69 |
| -12 | 2.89 | 2.41 | 1.97 |
| -7 | 3.25 | 2.62 | 2.21 |
| 2 | 3.65 | 2.95 | 2.48 |
| 7 | 4.15 | 3.35 | 2.82 |
| 12 | 4.52 | 3.72 | 3.13 |
| 20 | 5.07 | 4.28 | 3.60 |
We care every detail on what you need!
Super Low Noise: Fitted cut clothes for compressor and strong pads to avoid vibration
Anti-corrosion: Aluminum edging
Exellent Welding Guarantee No Leakage: Four-way valve welding protection
Energy Saving: 30mm thickness for insulation to prevent energy lost
User-friendly Design: Ram design using machine wire
Reliability of the Connection: Adopt automatic stamping machine from Taiwan
Related models are as below:
