Home / Commercial Heat Pumps / Residential Heat Pumps / Domestic Hot Water Heat Pumps / 3.8-9.2KW Domestic Monoblock Air Source Hot Water Heater and Floor Heating Pump



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3.8-9.2KW Domestic Monoblock Air Source Hot Water Heater and Floor Heating Pump

1. High Cop: 4.12/4.14/4.15

2. Max Water Temp: 60℃

3. Power Supply: 220V~240V/50Hz/1ph

4. Running Temp: -10℃~45℃

5. Heating Capacity: 3.8/5.5/7.6/9.2KW
  • CGKS-3.5 CGKS-5.5 CGKS-7 CGKS-9


Heat Pump Features

domestic air source monoblock heat pump


Our household monoblock air source heat pumps (water cycle) are designed for domestic hot water and floor heating. They have the following important features:


  • Mounted on outdoor wall

  • R410A refrigerant

  • Working air temperature range: -10℃ to 45℃

  • Max outlet water temperature: 60℃

  • Internal water pump is optional

  • Mitsubishi or Panasonic compressor

  • Forced defrosting function

  • Automatic multiple protection and breakdown

  • High efficiency shell and tube water heat exchanger



Heat Pump Specifications


  • Rated working condition: dry-bulb temp: 20℃; wet-bulb temp: 15℃; cool water temp: 15℃; hot water temp: 55℃.




Power Supply V 220V~240V/50Hz/1ph
Heating Capacity KW 3.8 5.5 7.6 9.2
Input Power KW 0.92 1.33 1.84 2.23
4.15 4.12 4.14 4.12
Rated Current A 4.6 6.7 9.3 11.3
Max Current A 6.2 9.1 12.5 15.2
Max Input Power KW 1.3 1.9 2.6 3.1
Fan Motor Power W 30 30 40 40
Fan Motor Quantity piece 1 1 1 1
Tube in shell heat exchanger
Water Flow L/h 726 1051 1452 1758
Water Rate L/g 82 118 163 198


Pressure Drop

Kpa ≤15 ≤18 ≤25 ≤27
Net Weight kg 40 46 55 62
Gross Weight kg 45 52 57 65
Noise db 42 42 45 45
Waterproof Classification
Electric Shock Proof Grade
Pipe Size (Internal Thread) mm DN20 DN20 DN20 DN20

Water Pump 

WILO RS15-6 RS15-6 RS15-6 RS15-6
Dimension mm 970*300*550 970*300*550 1006*350*618 1006*350*618
Packing Dimension mm 1040*330*580 1040*330*580 1070*380*650 1070*380*650
Compressor Model/Quantity



Heat Pump COP


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

Air temp ℃ Outlet water temperature ℃

W35 W45 W55 W60
-7 3.07 2.46 2.16 1.80
0 3.85 2.90 2.55 2.12
2 4.07 3.08 2.71 2.25
5 4.26 3.28 2.89 2.39
7 4.27 3.42 3.01 2.49
12 4.74 3.79 3.34 2.77
20 5.13 4.17 3.67 3.05



Installation Diagram


It is easy to install SPRSUN domestic monoblock heat pump as shown by the following Installation Diagram: 

installing domestic air source monoblock heat pump



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.




Solar Water 


         Gas Water Heater

Electric Water


Heat source electicity solar+electricity natural gas liquefield gas electricity
Heat Value 860kcal/kw/h 860kcal/kw/h 9000kcal/m⊃3; 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 0.99m⊃3; 0.87kg 10.34kw/h
Cost $0.11/kw.h $0.11/kw.h $0.42/m⊃3; $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


Heat Pump Models


Domestic air source heat pump models are as below:

domestic air source monoblock heat pump models



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 18-month long warranty. Within 18 months 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.



Contact Us

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