Multi-functional water to water heat pump
Features Technical Parameters Working principle

Water Source Heat pump features: 

Water source  heat pump can connect to indoor fan coils, for cooling in summer and heating in winter, any supply hot water for whole year! It is specially energy saving as in summer, while do cooling, hot water is provided for free of charge!

1. Reduce the monthly cost of air conditioning and heating homes;
2. Do not require the use of fuel oil or gas; 
3. Use the free energy of nature; 
4. Provide a stable temperature throughout the year; 
5. Are easy to install and use; 
6. Really environmentally friendly;
7. Reliable and durable - they will serve you for over 10years;

Flexible Applicability

1. Could be applied in differenct places,such as apartments, villas, entertainment places etc.

2. Wide rang of capacity selection, from 6KW to 50KW.


Product Application:
l Water source Geothermal heat pump from 6~50kw
l Cooling in summer & Heating in winter
l Domestic hot water all the year round
l Heating and hot water in winter
l Cooling and hot water in summer

Product Characteristic:
1) Energy saving and environment friendly product
1.Consume much less energy without direct CO2 emission.
2.Free from the effect of climate.
3.Energy saving more than 75%.

2) Heating function & Cooling function are optional
1.Connected to insulation water tank, it can offer warm water all year around.
2.Both heating only function and heating & cooling function are available, you can make a choice according to your requirement.

3) Convenient operation
Microelectronics control,all temperature settings are set by manufacturer.System tests and adjusts water temperature automatically.All what user needs to do is just to press"ON/OFF"button.System finishes the other operation automatically.

4) Convenient for maintenance
Suppose system is stoppped by malfunction,special malfunction code will be displayed .The cause may be found out easily.


Q1: Are you a factory or trading company?
A: We are the factory, and especially R&D, manufacturer and sell various heat pump euipment. We have engaged in the heat pump R&D and production over 10 years.

Q2: How to find a heat pump suitable for my product?
A: a. Tell me about your product details;

b. What functional heat pump products do you need;

c. Tell us your local minimum ambient temperature and maximum ambient temperature to recommend products that meet your needs;
d. Power supply specifications and special requirements used in your country. 

Q3: Is engineer available to serve oversea?
A: Yes, but the travel fee is paid by you. So actually to save your cost, We provide installation instructions and 24-hour online service and assist you till the end.

Q4: What is the payment term?

A: 30% T/T deposit and 70% T/T balance payment before shipping (If you purchase a sample that requires 100% payment, In order to avoid second payment, bank deduction fees will be generated again). Online trade assurance order, L/C, or as negotiated terms with clients.


Q5: How long is the warranty time?
A: 1 years of warranty. In guarantee period, if spare part broken, we will send you the parts free and we will pay the express fee. And please send us the spare parts back. when machine is out of guarantee period, we will provide you the spare parts by charge.

Q6: How can we make sure about the machine quality after we put the order?
A: Before delivery, we will send you the pictures for you to check the quality, and also you can arrange for quality checking by yourself or by your contacts in China.

Q7: We are afraid you won't send us the machine after we send you the money?
A: Please note our above business license and certificate. And if you don't trust us, then we can use Alibaba trade assurance service, guarantee your money, and guarantee your machine's on-time delivery and machine quality..

Q8: Why we should choose your company?
A: We are a professional heat pump manufacturer over 10 years, and we provide better after-sales service. We guarantee no risk for our deal.

Model DMW-06HA DMW-10HA DMW-13HA DMW-16HA/3 DMW-20HA/3 DMW-30HA/3 DMW-35HA/3
Heating Nominal capacity kw 6.5 10.74 13.3 16.5 20.6 30.3 35.66
Power input kw 1.39 2.32 2.91 3.62 4.49 6.49 7.67
COP W/W 4.7 4.64 4.58 4.56 4.6 4.67 4.65
Cooling Nominal capacity kw 5.2 8.45 10.5 13.2 17.2 25.8 31.5
Power input kw 1.26 2.1 2.47 3.15 4.22 6.18 7.84
EER W/W 4.12  4.03  4.26  4.20  4.08  4.18  4.02 
DHW Nominal capacity kw 6.35 9.5 12.5 15.4 19.6 29.5 34.2
Power input kw 1.62 2.44 3.17 3.9 5.03 7.53 8.6
COP W/W 3.92 3.9 3.95 3.95 3.9 3.92 3.98
Power supply V/Ph/Hz 220-240/1/50 220-240/1/50 220-240/1/50 380-415/3/50 380-415/3/50 380-415/3/50 380-415/3/50
Max. water-outlet temperature 60
Refrigerant type / R410A R410A R410A R410A R410A R410A R410A
Compressor type / Rotary  Scroll Rotary 
Water connections inch 1 1 1 1 1 1.5 1.5
Heat exchangers / Coaxial Heat Exchanger Plate Heat Exchanger Coaxial Heat Exchanger
Dimensions (Net) H*W*D mm 982*606*634 982*606*634 590*655*732 680*795*905 680*795*905 1015*705*770    1015*705*770   
Dimensions (Packing) H*W*D mm 1110*715*715 1110*715*715 720*650*865 850*720*1030 850*720*1030 1080*760*880 1080*760*880
Net / Gross weight kg 130/145 140/155 105/122 131/154 131/154 192/204 192/204
Noise level dB(A) 47 47 48 48 53 56 56
Capacities and power inputs based on the following conditions:
- Cooling: Water source inlet/outlet temperature 30°C/35°C; User side inlet/outlet temperature 12°C/7°C.
- Heating: Water source inlet temperature 15°C; User side inlet/outlet temperature 30°C/35°C.
- Domestic Hot Water: Water source inlet temperature 10°C; Water temperature in the tank 40°C (Tank not supplied).
- The flow rate obtained during the test at standard rating conditions in cooling mode is used.

How does a heat pump work?

Heat pump uses electrical energy and take low grade heat energe from the outdoor air heat refrigerant which in turn heats water for domestic use and space heating. The efficiency of a heat pump is know as the coefficient of performance or COP. This is a ration of the heat delivered to power consumed.

At the beginning of the first phase the refrigerant is cold low pressure liquid.

1. The refrigerant passes into the evaporator and heat energy from the outside air passes over the evaporator causing the refrigerant to increase in pressure and change to warm vapor.

2. This warm vapor then enters the compressor where its tAAAemperature increase as result of the compression process and turns into a hot gas.

3. The hot refrigerant gas is then condensed as it passes across one side of a plate heat exchanger, and this is transferred via the primary water circuit to heat up the water tank.

4. Despite dropping in temperature, the cool vapor still has a high pressure and to reduce this pressure the vapor passes through an expansion valve. This cause the pressure to drop and the temperature lowers, returning the refrigerant to its initial state of cool low pressure liquid.

This process is repeated.

It is only the refrigerant that passes through this cyclel; the water is heated as it travels through the plate heat exchanger. The heat energy from the refrigerant passes through the plate heat exchanger to the cooler water which increase in temperature. This heated water enters the home heating circuit and also be used to provide domestic hto water via a hot water tank.