SPRSUN Combo Series - 28KW-40KW -25℃ EVI Air Source Heat Pump for Cold — Home Selection
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SPRSUN Combo Series - 28KW-40KW -25℃ EVI Air Source Heat Pump for Cold Weather Hot Water & Underfloor Heating

 

1. High Cop: 3.34/2.85/4.31
2. Power Supply: 380V～415V/50Hz/3ph
3. Running Temp: -25℃-45℃ (CGK/D-36(LHC)、CGK/D-36(L) )
Running Temp: -10℃~45℃ ( CGK/D-36(LH) )
4. Max Outlet Water Temperature: 55-80℃
5. Cooling: 10℃（Min Water Temp）
6. Heating Capacity: 28KW /31.5KW /40KW
7. Cooling Capacity: 26.8KW

 


Features >>

SPRSUN EVI air source heat pumps are designed for domestic/commercial/industrial hot water 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. Refrigerant guarantees fluoride-free emission. 

● 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.

Specification >>

  • Rated working conditions: Dry-bulb temp: 20℃; wet-bulb temp: 15℃; cool water temp: 15℃;  - Heating: air temp (DB/WB): 7℃/6℃;  Hot water temp: 45-75 ℃. - Cooling: air temp(DB/WB): 35℃/24℃, water temp (inlet/outlet): 12℃/7℃.
Model
CGK/D-36(LHC)
Heat & Cooling		 CGK/D-42(LHC)
Heat & Cooling		 CGK/C-18(L)
Hot water & floor heating		 CGK/C-28(L) 
Hot water & floor heating		 CGK/D-36(L) 
Hot water & floor heating		 CGK/D-36(LH)
No Cooling
Power supply V 380V～415V/50Hz/3ph
Refrigerant R407C R134A
Heating capacity KW 31.5 41 20 26 40 28
Input power of heating KW 9.43 12.28 4.6 6 9.3 9.82
COP
3.34 3.34 4.32 4.31 4.31 2.85
Cooling capacity KW 26.8 34.9 / / / /
Input power of cooling KW 9.74 12.67 / / / /
EER
2.75 2.75 / / / /
Rated current A 17.9 23.3 8.8 11.5 17.6 18.7
Max current A 25.1 32.6 11.9 15.5 23.8 25.2
Fan motor power W 250 330 90 100 250 250
Fan motor quantity Piece 2 2 2 2 2 2
Water flow L/h 6019 7834 3822 4968 7643 8025
Water pressure drop Kpa ≤55 ≤60 ≤40 ≤45 ≤55 ≤60
Max Input Power KW / / 6.3 8.1 12.5 /
Hot Water Production L/h / / 430 559 860 /
Water Rate L/h / / / / / 401
Net weight kg 320 380 164 190 320 320
Gross weight kg 333 400 174 200 333 333
Noise db 65 68 56 58 65 60
Classification of waterproof IPX4
Electric shock proof grade I
Pipe size (internal thread) mm 32 40 25 25 32 32
Dimension mm 1450*740*1150 1500*800*1515 1090*480*1260 1256*565*1368 1450*740*1150 1450*740*1150
Packing dimension mm 1540*820*1320 1580*880*1665 1160*500*1410 1310*620*1520 1540*820*1320 1540*820*1320
Compressor model/quantity ZW61KSE*2 ZW79KSE*2 ZW61KSE*1 ZW79KSE*

 

Application >>

SPRSUN EVI air source heat pumps can be applied for hot water and floor heating.

Wide Range of Applications: these EVI low temperature heat pumps could meet the hot water and house heating 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. 

Brand Component >>

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. 

Installation Diagram >>

COP >>

The Heating COP of SPRSUN EVI Air Source Heat Pumps at Different Working Conditions:

Model Air temp ℃ Hot water temp ℃
CGK/D-36(LHC) 
W35  W45 W55
CGK/D-36(L) -25 2.21 1.85 1.5

-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 3.6

Model Air Temp ℃ Water Temp ℃
CGK/D-36(L)
15-40 15-50 15-60 15-70 15-75

-7 2.44 2.32 2.21 2.12 2.06

2 3.05 2.9 2.76 2.65 2.57

7 3.09 2.93 2.79 2.68 2.6

10 3.15 2.99 2.84 2.73 2.65

15 3.25 3.08 2.93 2.82 2.74

20 3.38 3.21 3.05 2.94 2.85

25 3.55 3.37 3.21 3.08 2.99

30 3.73 3.53 3.37 3.24 3.14

 

 

Workmanship  >>

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

Economic Analysis >>

 

Energy Saving Up to 75%: Compared with solar water heaters, gas water heaters and electric water weaters, the energy cost saved by SPRSUN air source heat pump water heaters is shocking.

Item

SPRSUN Heat

Pump

Solar Water 

Heater

          Gas Water Heater

Electric Water

Heater
Heat source electicity solar+electricity natural gas liquefield gas electricity
Heat Value 860kcal/kw/h 860kcal/kw/h 9000kcal/m³ 1080kcal/kg 860kcal/kw/h
Efficiency 450%

1/3 time use of

 electric heater

 90% 85% 90%
Energy consumed per day 2.07kw/h 3.45kw/h 0.99m³ 0.87kg 10.34kw/h
Cost $0.11/kw.h $0.11/kw.h $0.42/m³ $1.1/kg $0.11/kw.h
Cost per day $0.23 $0.38 $0.42 $0.96 $1.14
Annual cost $84 $139 $153 $350 $416

 

Model Series >>

Related models are as below:

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SPRSUN Combo Series - 28KW-40KW -25℃ EVI Air Source Heat Pump for Cold Weather Hot Water & Underfloor Heating

SPRSUN Combo Series - 28KW-40KW -25℃ EVI Air Source Heat Pump for Cold Weather Hot Water & Underfloor Heating

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