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39KW-100KW Commercial Water to Water Open Loop Heat Pump for DHW and Room Heating

1. High Cop: 5.22/5.23/5.24

2. Hot Water Temp: 25℃-60℃

3. Power Supply: 380V~415V/50Hz/3ph

4. Source Side Temp: -10℃ to 35℃

5. Heating Capacity: 39KW/48KW/56KW/76KW/100KW
  • CGS-36 CGS-42 CGS-52 CGS-75 CGS-95

Features of Heat Pumps

Open Loop Water to Water Heat Pump


SPRSUN geothermal water source heat pumps are designed for house heating and hot water (heating/cooling function available in other models) with COP up to 5.24. They have the following important features: 


  • Open Loop System;

  • Source Side Temp: -10℃ to 35℃;

  • Control object: using side return water temperature ;

  • Setting range: heating 25℃~60℃; 

  • Circulating water pump controlling;

  • Linkage ON/OFF function by external controlling system signal;

  • Electric heater back up;

  • Timer function;

  • Multiple protections



Technical Features of Open Loop Water to Water Heat Pump



Heat Pump Specifications


  • Rated working condition: heating: source side inlet/outlet water temp: 15℃/10℃, load side inlet/outlet water temp: 15℃/55℃







CGS-36 CGS-42 CGS-52 CGS-72 CGS-95
Power Supply V 380V~415V/50Hz/3ph
Heating Capacity KW 39.0 48.0 56.0 76.0 100.0

Input Power of 


KW 7.46 9.16 10.69 14.53 19.16
5.23 5.24 5.24 5.23 5.22
Rated Current A 14.2 17.4 20.3 27.6 36.4
Max Current A 19.1 23.5 27.4 37.3 49.1

Water Flow of 

Load Side

L/h 7452 9172 10700 14522 19108

Water Flow of 

Source Side

L/h 6027 7421 8658 11745 15447
Water Pressure Drop Kpa ≤40 ≤42 ≤45 ≤48 ≤50
Net Weight kg 165 180 350 451 475
Gross Weight kg 185 200 370 471 495
Noise db 56 56 58 65 68

Pipe Size 

(Internal Thread)

mm 32 32 50 50 65
Dimension mm 1040*600*1200 1240*840*1650
Packing Dimension mm 1090*705*1560 1040*640*1140 1300*900*1800
Compressor Model/Quantity
ZW54KWP*2 ZW72KWP*2 ZW83KWP*2 ZW108KAE*2 VR144KSE*2


components of heat pumps


Our water source heat pumps use high quality components such as Copeland scroll compressor, Emerson thermal expansion valve, SANHUA 4-way valve, etc.

Water Source Heat Pump Materials



installing heat pumps


It is easy to install SPRSUN water source heat pump as below:

Water Source Heat Pump Installation



workmanship of heat pumps



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 heat pumps



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


low noise heat pumps


Heat Pump Models


Related models are as below:

Water Source Heat Pump Models



Heat Pump 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.







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


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


TEL: 0086-20-82181867
PHONE: 0086-18933985223
SKYPE: sprsun.sprsun