Residential R32 Inverter Air to Water Heat Pump

Popular R32 Heat Pump – Whirlwind Series
Perfect for House Heating, Cooling and Domestic Hot Water

R32 air to water heat pump with advanced DC inverter technology is an excellent solution to distribute heat and hot water in your house and lead a green, money-saving lifestyle. Rated at ERP A+++ energy level, it significantly increase efficiency and save energy. With the development of IoT, Exinda heat pump achieves 5 intelligent modes to provide customers a eco-smart home experience: hot water, central heating, central cooling, hot water + house heating, hot water + house cooling.
-DC Inverter Technology: higher COP and greatly save electricity bills.
-Low Noise Mode: super quiet operation as low as 38dB(A).
-IoT Control System: intelligent display touch screen, remote control APP on mobile phone and diagnostics on Web, available for various well-documented interface such as RS485 Modbus.
-Weather-dependent Curve: increase SCOP and keep at the optimum comfort level for customers, considerably save energy.
-Anti-frozen and Intelligent Deforest Mode: minimize energy consumption and extend the lifespan of heat pump, maintain excellent performance in extremely cold area.
-Safe Structure Inner Design: automatically monitor heat pump system and immediately trigger switches to avoid refrigerant gas leakage.


EXINDA Whirlwind Series R32 Air to Water Heat Pump Parameters
Power Supply V/ph/Hz 220-240/1/50 220-240/1/50 380-415/3/50 380-415/3/50
Min./Max. Heating Capacity(1) KW 5.38~9.13 7.15~12.14 8.22~16.80 11.54~22.98
EI.Heating Power Input Min./Max(1) W 1157~2445 1524~3220 1685~4389 2324~6053
C.O.P(1) W/W 3.73~4.65 3.77~4.69 3.83~4.88 3.80~4.97
Min./Max. Heating Capacity(2) KW 4.72~8.84 6.28~11.77 7.63~15.68 10.71~21.47
EI.Heating Power Input Min./Max(2) W 1338~2833 1762~3730 2062~5006 2843~6850
C.O.P(2) W/W 3.12~3.53 3.16~3.56 3.13~3.70 3.13~3.77
Min./Max. Cooling Capacity(3) KW 3.41~7.66 4.53~10.19 7.01~12.56 9.67~17.22
EI.Cooling Power Input Min./Max(3) W 936~2373 1233~3124 1614~3892 2225~5367
E.E.R Min./Max.(3) W/W 3.23~3.64 3.26~3.68 3.23~4.34 3.21~4.35
Min./Max. Cooling Capacity(4) KW 2.16~5.46 2.87~7.26 4.94~10.16 6.72~14.11
EI.Cooling Power Input Min./Max(4) W 943~2205 1242~2903 1621~3729 2236~5143
E.E.R Min./Max.(4) W/W 2.29~2.48 2.31~2.50 2.72~3.05 2.70~3.00
ERP Level(35℃) /


A+++ A+++ A+++
ERP Level(55℃)



A++ A++ A++
Workable Ambient Temperature Range


Max. Flow Temp. in Heating Mode

Min. Flow Temp. in Heating Mode

Min. Flow Temp. in Cooling Mode

Refrigerant Type/Amount R32/1.2kg R32/1.4kg R32/1.8kg R32/2.2kg
Water Connection Inch G 1 G 1 G 1 G 1-1/4
Noise Level (Indoor/Outdoor) dB(A) 42/53 42/53 42/53 42/59
Outdoor Unit Dimensions(L/W/H) mm 1200×520×855 1200×520×855 1250×520×1420 1252×520×1420
Weight kg 65 69 92 106
(1)Heating condition: Water inlet/outlet Temp.:30℃/35℃,Ambient Temp.: DB 7℃/WB 6C;
(2)Heating condition: Water inlet/outlet Temp.:40℃/45℃, Ambient Temp.: DB 7℃/WB 6℃;
(3)Cooling condition: Water inlet/outlet Temp.:23℃/18℃, Ambient Temp.: DB 35℃/WB 24℃;
(4)Cooling condition: Water inlet/outlet Temp.:12℃/7℃, Ambient Temp.: DB 35℃/WB 24℃;

Eco-Friendly R32 Refrigerant
R32 V.S. R410A: 70% less impact on global warming. R32 has one of the lowest GWP values on the market-675. R32 is 10% more energy efficient, less refrigerant is required for the cooling system

Heat Pumps Play a Significant Role in Decarbonizing Heating Industry
We provide comprehensive eco-energy solutions for your smart home and low-carbon green life.

DC Inverter Technology
Designed to withstand the extremely cold condition, Exinda heat pumps have passed the extremely cold operation test, it can stably operate at -25°C, maintain high COP and reliable stability. Different from fixed speed systems, inverters automatically ramps up and down by the variable speed compressor, which means it can adjust the output needed at the lowest energy consumption based on the ambient conditions as well as maintain temperature at the most comfortable level. Therefore, it achieves higher COP, more efficient heating/cooling & hot water even under extremely cold climate, and greatly saves energy costs, cut down electricity bills.

Low Noise Mode, Super Quiet
By Exinda upgrade technology and the unique soundproof internal structure design, the sound pressure of Storm Series Air to Water Heat Pump is kept to as low as 38dB(A) at 2.1 meter distance (Min. Flow).

Smart Control System
Exinda Smart Display has a convenient touch screen that users can easily control the heat pump at home, such as temperature adjustment, mode setting and switching. Users are able to remotely set water temperature and room temperature, change settings and check running status via computers (web server) or mobile phone (APP). With DTU Module and Electric Wi-Fi Control, you can pre-heat or cool a room no matter where you are. Besides, from performance monitoring to predictive logic & analytics, our Intelligent IoT System is a cost-efficient way to diagnose failing issue, automatically adjust the operation logics and directly solve the problem at the back-end, increase the security, uptime and reliability of your heat pump. APP and remote diagnostics are very crucial in Exinda system. Hence, we have an open API for connecting to Energy Management Systems and Smart Home Applications with capable and well-documented interface (e.g.RS485, Modbus).

Hybrid Heating System
With Modbus(RS485) Interface, Exinda Integrate Heat Pump can be connected to other energy source such as fuel boiler, solar PV panel, pellet boiler to achieve energy saving, based on local energy policy and user’s preference. It will be greatly helpful in extremely cold area.

Weather-dependent Curve
The weather-dependent heating curve plays an important role in the significant increment of the SCOP of the unit.As the figure showing, when the house weather condition (outside temperature) is at A2, the flow temperature is at B1, and it will increase to be at B2 when the house weather condition gets cold and drops to A1.The system keeps monitoring the current ambient temperature so as to automatically immediately adjust the flow temperature in opposite direction to achieve the desired optimum comfort level. Therefore, customers can always use the most comfortable outlet water temperature under changing weather condition and different circumstance (e.g. heating demand, insulation levels, etc).In this way, the weather-dependent operation greatly reduces energy consumption.

Installtion Guide