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19KW 20KW R32 DC Inverter Air to Water Heat Pumps for Cold Areas

1. Max. COP: 5.89/5.90

2. Power Supply: 220V~240V/50Hz/1ph or 380V~420V/50Hz/3ph

3. Running Temp: -30℃~45℃

4. Max. Heating Capacity: 19.8KW/20KW

5. Max. Cooling Capacity: 18.1KW/18.2KW

6. Multi-functions: hot water/heating/cooling/hot water+cooling/hot water+heating
  • CGK050V3L-B CGK-050V3L-B


This SPRSUN R32 DC Inverter Air to Water Heat Pump adopts the Panasonic rotary compressor and significantly improve the problem of insufficient heating efficiency at low temperature. It features a maximum heating capacity of 19.8KW/20KW and a maximum cooling capacity of 18.1KW/18.2KW. This air to water heat pump is perfect for properties in cold areas or cold climates as it uses the outdoor air as their heat source in the winter and heat sink in the summer. Hence, it’s cost-effective and environmental-friendly.

Cold Weather Full Inverter Heat Pumps

With a concise new look, the SPRSUN Self-developed Controller Series of SPRSUN R32 Cold Climate Full Inverter Heat Pumps are designed to bring comfort to people's life with hot water, heating and cooling. The features & functions equivalent to the CAREL Controller Series include ERP A+++ energy rating, low noise operation, R32 refrigerant, smart control and intelligent defrosting. Moreover, these cost-effective inverter heat pumps are highlighted with 5-inch colorful touch screen, -30°C EVI low ambient temperature operation and one click remote software update.  

CGK050V3L-B CGK-050V3L-B
Power Supply / Refrigerant V/Hz/Ph 220-240/50/1 - R32 380-420/50/3 - R32
Max. Heating Capacity (1) kW 19.8 20
C.O.P (1) W/W 4.71 4.72
Heating Capacity Min./Max.(1) kW 9.108 / 19.8 9.2 / 20
Heating Power Input Min./Max.(1) W 1547 / 4204 1559 / 4237
C.O.P Min./Max. (1) W/W 4.71 / 5.89 4.72 / 5.90
Max. Heating Capacity (2) kW 19.0 19.2
C.O.P (2) W/W 3.77 3.78
Heating Capacity Min./Max.(2) kW 8.74 / 19.01 8.83 / 19.20
Heating power input Min./Max.(2) W 1954 / 5045 1970 / 5085
C.O.P Min./Max. (2) W/W 3.77 / 4.47 3.78 / 4.48
Max. Cooling Capacity (3) kW 18.1 18.2
E.E.R (3) W/W 3.65 3.66
Cooling Capacity Min./Max.(3) kW 8.31 / 18.06 8.39 / 18.24
Cooling Power Input Min./Max.(3) W 1894 / 5774 1909 / 5820
E.E.R Min./Max. (3) W/W 3.13 / 4.39 3.13 / 4.39
Max. Cooling Capacity (4) kW 14.3 14.4
E.E.R (4) W/W 2.74 2.75
Cooling Capacity Min./Max.(4) kW 6.56 / 14.26 6.62 / 14.40
Cooling Power Input Min./Max.(4) W 1699 / 5353 1713 / 5405
E.E.R Min./Max. (4) W/W 2.66 / 3.86 2.66 / 3.87
Rated Current  A 20.1 8.9
Max Power Input  kW 6.1 6.1
Max Current A 29.17 12.97
Compressor Type - Quantity/System
Twin Rotary - 1 Twin Rotary - 1
Fan Quantity
2 2
Airflow m3/h 5000 5000
Rated power W 200 210
Water Side Heat Exchanger Type
Plate Heat Exchanger Plate Heat Exchanger
Water Pressure Drop kPa 23 25
Piping Connection Inch G1" G1"
Allowable Water Flow Min./Rated./Max. L/S 0.59 0.95 1.58 0.66 1.05 1.75
Noise Level
dB(A) 61 62
Net Dimension(L×D×H) mm 1110*475*1355 1110*475*1355
Packing Dimension(L×D×H) mm 1200*540*1510 1200*540*1510
Net Weight Kg 124 124
Gross Weight Kg 161 161
Note:  (1) Heating condition: water inlet/outlet temperature: 30℃/35℃, Ambient temperature: DB 7℃/WB 6℃;
         (2) Heating condition: water inlet/outlet temperature: 40℃/45℃, Ambient temperature: DB 7℃/WB 6℃;
         (3) Cooling condition: water inlet/outlet temperature: 23/18, Ambient temperature: DB35/WB24;
         (4) Cooling condition: water inlet/outlet temperature: 12/7, Ambient temperature: DB35/WB24.


1.  5-inch Colorful Touch Screen

The 5-inch colorful touch screen allows you to control the temperature and set the system modes easily. With modern and clear interface, it can quickly check error codes, making sure that you are able to change or program your room temperature at anytime, anywhere.

Heat Pump Controller

2. -30 °C EVI Low Temp Operation 

These EVI low temp DC inverter heat pumps are specially designed for chilly climate areas. The SPRSUN self- developed controller series combine eco-friendly R32 refrigerant and inverter EVI technology to produce 60°C hot water as well as stable house heating even under -30°C low temperature condition. Adopting the Panasonic rotary compressor, the EVI inverter heat pumps significantly improve the problem of insufficient heating efficiency at low temperature.

EVI Heat Pump Low Temp Operation

3. One Click Remote Software Upgrade

If there's a necessary software update, the system will keep you informed so that you can upgrade the controller software with one click anytime, anywhere as long as it connects to the internet. The update can take several minutes depending on the speed of the internet connection.
wifi heat pump software upgrade

4. More Highlights

4.1 ERP A+++ Performance

As highly energy-efficient as the CAREL controller series, the new R32 Full Inverter Heat Pumps are also can achieve ERP A+++ energy level. They have a maximum heating capacity from 9.5KW to 22KW, with a maximum COP of 5.89.
ERP A+++ heat pump max cop 5.89

4.2 R32 Refrigerant

The R32 refrigerant is more environmentally friendly compared to other traditional refrigerants. Its ability to enable an inverter heat pump to recharge and recycle more effectively than some other refrigerants means that the unit can run at much higher efficiencies.

Lower GWP of R32 Heat Pump



4.3 Low Noise

Panasonic rotary compressor and NIDEC DC inverter brushless fans enable the units to run quietly. Meanwhile, new noise reduction measures are adopted to control the sound of the units at a satisfactory level. The SPRSUN Self-developed Controller Series can realize low noise running of 56dB(A) when testing at sound power.
Low Noise Inverter Heat Pump

4.4 Smart Control

With the self-developed CGK online intelligent remote-control system, our R32 DC inverter heat pumps are equipped with highly integrated control functions, which can be operated via a remote APP. The system is easy to manipulate, stable in performance, and is truly a smart operating system. 
smart control inverter heat pump

4.5 Intelligent Defrosting

SPRSUN independently developed its own PID intelligent defrosting control mode. When the defrosting conditions are met, the defrosting mode will be automatically entered to prevent the unit from defrosting confusion and energy consumption, which will improve the reliability and economy of the whole unit.
heat pump smart defrosting

4.6 Multiple Functions

The unit has various human-centered functions: 
> It can automatically switch the temperature mode according to the ambient temperature; 
> Multiple timing functions improve customer experience and meet their energy-saving needs; 
> Multi-language display is designed for customers in different markets; 
> Sterilization is applied to make the heat pump more comfortable; 
> A variety of automatic protection functions are equipped in the unit to identify and adjust errors automatically, so that the unit works more stably and durably.

heat pump with multiple protections

Technical Support


Our experienced engineering team provides good support for any questions concerning the products and installation before, during and after products are sold. 


Before Selling

  • Set up customers file and arrange professional sales engineers to introduce company products and services to customers in details.

  • If customers are interested in our products, we will send professional technicians to survey the installation environment.

  • Provide solutions according to different customers' requirements.


During Selling

  • Machine installed and tested by QA engineers.

  • Ensure all the products we provide are qualified and new. The working life of the main engine is 15 years.

  • Construct and install the heat pump according to national relevant policies strictly and ensure high quality delivery on time.

  • Test and debug the equipments strictly to ensure the safety and stability.

  • During the delivery, provide comprehensive and professional technical training on instructions and maintenance to customers.


After Selling

  • We promise to offer free consulting call in 7×24 hours mode to solve the problems found in practice. The number is 86-20-82181867.

  • SPRSUN offers standard 24-month warranty. Customers can choose to extend the warranty to 5 years with a small amount of fee. Within the warranty period since the delivery date, if the product has any failure under normal usage, Sprsun will provide free assembly parts. 

  • After the expiration of the warranty period, we will continue to provide lifelong maintenance services, with just a small amount of charges.




Projects Worldwide

Selling Heat Pumps Globally for 23 Years

SPRSUN is a professional heat pump manufacturer founded in 1999. As one of the leading heat pump suppliers in China, SPRSUN manufactures several different types of heat pumps, including DC inverter heat pumps, air source hot water heat pumps and swimming pool heat pumps. They are produced based on EN14511 standard with CCC, CE, CB, SAA, ROHS, TUV and ERP certificates. We also cooperate with leading companies such as Panasonic, CAREL, Grundfos, Copeland, Mitsubish and Sanyo to ensure upgraded product quality. Over the years, excellent products based on leading technology and professional service have earned SPRSUN its reputation as one of the leading heat pump suppliers all over the world.
Years of Heat Pump Experience
Number of Selling Countries
Global Strategic Partners
Monthly Heat Pump Production

Guangzhou SPRSUN New Energy Technology Development Co., Ltd.

A Professional Heat Pump Manufacturer Since 1999
No.15 Tangxi Road, Yinsha lndustrial Park, Xintang, Zengcheng , Guangzhou, Guangdong, China, 511338

Contact SPRSUN. 7/24 Support. We Will Reply You ASAP!

Tel: 0086-20-82181867
Phone: 0086-18933985692 

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