Absorbed energy from Air DC inverter heat recovery pump

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  • >=5 Sets
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Shipping fee:
Depends on the order quantity.
Lead Time:
20 day(s) after payment received
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Quick Details
Air Source Heat Pump
Wall Mounted
Storage / Tankless:
Instant / Tankless
Housing Material:
galvanized steel
house/Hotels/ Schools/Hospitals /Restaurants/Laundry Hostel / Canteen
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Sundez or OEM
Model Number:
heating output:
working range:
heating, cooling, DHW
twin rotary DC inverter
brazed plate exchanger
electronic expansion valve
hydrophilic and louvered fin-tube
circulation pump:
automatical 3 speeds

Packaging & Delivery

Selling Units:
Single item
Single volume: 
800000 cm 3
Single gross weight:
124.0 kg
Package Type:
Standard export packing ( Plastic film covered + honeycomb paper+ Carton box+wooden crate ) .
Picture Example:
Lead Time :
Quantity(Set) 1 - 5 >5
Est. Time(days) 20 To be negotiated

DC inverter heat recovery heat pump            


Sundez DC inverter air to water heat pump is one of the best heat pumps for house heating so far, with advanced DC inverter technology, saving 40% electricity than normal on/off heat pump in practical operation.


The whole system is optimized with variable fan speed, while the temperature compensation function contributes to a more comfortable indoor environment. It can work with solar, boiler or electric heater according to practical condition of the heating system.








- with Advanced DC inverter technology, it saves 40% energy than normal heat pump in practical operation.

- 5 modes to manage heating, cooling and DHW, fits your needs all year round.

- with Intelligent Heating curves (temperature compensation function), the water setting temperature adjusts automatically as the house's heat loss changes.

- Automatically variable fan speed in 3 grades to optimized heating efficiency.

- Can work with room thermostat.

- Can work with auxiliary heater.

- Split design with water system indoor, preventing water frozen problem.

- Aviation plug for wire connection between indoor unit and outdoor unit, simplifies installation and avoids mistakes. - with plate heat exchanger, flow switch, circulation pump, water pressure gauge in indoor unit.

- Allows absence of buffer tank.




Model SDDC-050-BSDDC-075-BSDDC-125-BSDDC-125-B-S
Power SupplyV/Ph/Hz220-240/1/50220-240/1/50220-240/1/50380-400/3/50
Rated Heating CapacityKW5.58.617.217.2
Heating Capacity RangeKW0.87~7.001.50~10.502.60~19.802.60~19.80
Heating Input Power W300~1630500~24501000~44001000~4400
COP W/W2.9~4.52.9~4.52.9~4.52.9~4.5
Rated Cooling Capacity 57.514.514.5
Cooling Capacity Range 0.7~6.21.2~9.12.3~16.12.3~16.1
Cooling Input Power  290~1590490~2450970~4300970~4300
EER 2.4~3.52.5~3.52.4~3.52.4~3.5
Max. hot water temperature°C55555555
Max. hot water temperature with electric heater°C70707070
Applicable ambient temp. °C-20~+43-20~+43-20~+43-20~+43
Compressor  Inverter rotaryInverter rotaryInverter rotaryInverter scroll
Refrigerant R410AR410AR410AR410A
Water Connectioninch1"1"1"1"
Water Flow Volumem3/h11.372.32.5
Water Pressure Dropkpa12122020
Water side heat exchangerplate heat exchanger
Circulation pump Built-in Built-in Built-in Built-in
Fan Quantity   1122
Fan direction   HorizontalHorizontalHorizontalHorizontal
Fan rotate speed (auto-adjustable)  RPM850/750/600730/630/550730/630/550730/630/550
NoiseOutdoor unitdB(A)48495353
Indoor unitdB(A)30303030
Net weightOutdoor unitKg5060121128
Indoor unitKg30364444
Net Dimension
Indoor unitmmH×W×D732*410*319732*410*319732*410*319732*410*319
Outdoor unitmmL×W×H830*310*710880*360*800930*390*1270930*390*1270


Model SDDC-075-B
Container loading
20' GP49
40' GP 99
40' HQ102




Delivery: 40 days after arrival of down payment.


Product Description





Packaging & Shipping

Standard Export packaging for heat pumps:

LCL order: Plastic film covered + honeycomb paper+ Carton box+ Polywood

Container order: Plastic film covered + honeycomb paper+ Carton box


Quality Control


1. Complying with ISO standard. Quality Ensured. 


2. Complete Inspection for each unit before out of factory, covering water system and electricity detection and testing, ensuring 100% right product before shipment.


3. Strict quality control during production. We have liquid soap detection, halogen detection, electrical detection and water-soaking detection during production to avoid gas leakage and electrical problems .  


4. Full inspection on bigger parts such as compressors, condensers, evaporators, expansion valves, flow switches, controllers etc.. Selection inspection for small parts such as sensors, pressure switches etc.. 


5. Well noise control by using mute cotton for casing plates and soft rubber feet for floating compressors, some of the models use compressor isolation shields.


6. Well insulated with insulated cotton for every pipe and parts, include compressor, dryer filter and each pipes.


7. We have passed TUV  and SGS inspections. We have CE, RoHs, IEC, CCC, CB certificates for most of our products. Some of our products have en14511 test, en14825 test. 


We will do our best to coordinate with you to offer products according to your requirements, please don't hesitate to tell us your wishes!




Our Services

A. Payment service
1, T/T
2, L/C (for container order only)


B. Technical service
1, We calculate the capacity and recommend the best models.
2, We supply you the professional refrigeration technical support and electronic technical support for your installation, debugging and operation.
3, We supply the spare parts and technical support in and after the warranty time.
4, We supply the training course to your workers at our factory if you need.

5. We can offer site training to your workers in your place which is negotiable.


C. After-sales service
1, Technical support for your installation, operation and maintenance. 
2, Standard warranty time: two years’ warranty for heat pumps and 18 months' warranty for water tanks and fan coils.

You can also pay for extended warranty or we can renegotiate the longer warranty period.
3, Spare parts and technical support at most economic prices after the warranty.



Company Information

We have two brands, SUNDEZ & YANGZI.

Yangzi heat pumps and water tanks are famous in domestic market while SUNDEZ is for overseas market.


Sundez owns two factories, one is in Zhongshan city, Guangdong province, the other is in Chuzhou city of Anhui province. We can produce over 2000 sets of heat pumps (with water tanks) each month.



Please contact us if you want to find a reliable Chinese factory for production! We accept OEM and ODM. Our R&D team is always on the way of innovations.


You can visit our Zhongshan production base or Chuzhou production base.





We have been exporting heat pumps for over 7 years, mainly to European countries and also other countries such as South Africa, South America, Southeast Asia etc..

We pass ISO9001 quality management system.

Our company has been inspected and certificated by TUV and SGS.

We are your reliable partner for your heating and hot water market!



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