
1.Hot water up to 75C,suitable for underfloor/radiator heating/fan coil
2.can work stable at ambient temperature -25C to 45C
3.E-Heater,diverter valve and water pump can be inclueded
4. A+++ Energy Rating Level
5.Full inverter system,Stable and efficient performance.
6.R290 System,environment friendly
7.Application Scope:Hotels,clubs,hospitals,villas and any place in need of air conditioning,heating and hot water
8.With Wifi App control


Installation Diagram:


Two heating circuits
○More flexibility thanks to two zones control
○Independent temperature control of underfloor heating and radiator heating
○User interface shows two different zones temperature


Technical Parameter:
Market model | WW07VM | WW09VM | WW12VM | WW15VM | WW20VT | WW22VT | ||
Heating1 A7 W35 | Output Capacity | kW | 2.84~7.20 | 3.61~9.17 | 4.75~12.06 | 5.83~14.80 | 8.03~20.38 | 8.71~22.12 |
Input Power | kW | 0.51~1.58 | 0.67~2.07 | 0.87~2.67 | 1.09~3.36 | 1.50~4.62 | 1.66~5.09 | |
COP | - | 4.56~5.52 | 4.43~5.36 | 4.51~5.46 | 4.40~5.32 | 4.41~5.34 | 4.35~5.26 | |
Input Current | A | 2.35~7.23 | 3.08~9.47 | 3.98~12.24 | 5.01~15.39 | 2.69~8.27 | 2.96~9.10 | |
Heating2 A7 W55 | Output Capacity | kW | 2.60~6.83 | 3.27~8.60 | 4.51~11.88 | 5.41~14.24 | 7.49~19.72 | 8.29~21.82 |
Input Power | kW | 0.72~2.24 | 0.94~2.91 | 1.26~3.92 | 1.57~4.88 | 2.08~6.44 | 2.41~7.47 | |
COP | - | 3.05~3.60 | 2.96~3.49 | 3.03~3.58 | 2.92~3.45 | 3.06~3.61 | 2.92~3.45 | |
Input Current | A | 3.30~10.25 | 4.28~13.30 | 5.78~17.94 | 7.19~22.32 | 3.71~11.53 | 4.30~13.37 | |
Heating3 A20 W55 | Output Capacity | kW | 3.54~8.86 | 4.47~11.19 | 5.98~14.95 | 7.16~17.91 | 10.03~25.07 | 10.71~26.77 |
Input Power | kW | 0.69~2.01 | 0.88~2.57 | 1.15~3.38 | 1.40~4.11 | 1.96~5.72 | 2.13~6.24 | |
COP | - | 4.41~5.16 | 4.36~5.10 | 4.43~5.18 | 4.36~5.10 | 4.38~5.12 | 4.29~5.02 | |
Input Current | A | 3.14~9.19 | 4.01~11.74 | 5.28~15.45 | 6.43~18.80 | 3.50~10.24 | 3.82~11.16 | |
Cooling4 A35 W7 | Output Capacity | kW | 2.11~5.02 | 2.95~7.03 | 3.83~9.12 | 4.45~10.59 | 5.90~14.05 | 6.38~15.20 |
Input Power | kW | 0.67~1.89 | 0.98~2.76 | 1.30~3.65 | 1.58~4.45 | 1.98~5.58 | 2.24~6.31 | |
EER | - | 2.65~3.13 | 2.55~3.01 | 2.50~2.95 | 2.38~2.81 | 2.52~2.97 | 2.41~2.84 | |
Input Current | A | 3.09~8.67 | 4.49~12.62 | 5.94~16.70 | 7.25~20.36 | 3.55~9.97 | 4.02~11.28 | |
Power Supply | V/PH/HZ | 220-240V/1/50Hz | 220-240V/1/50Hz | 220-240V/1/50Hz | 220-240V/1/50Hz | 380-415V/3/50Hz | 380-415V/3/50Hz | |
ErP level(35ºC) | - | A+++ | A+++ | A+++ | A+++ | A+++ | A+++ | |
ErP level(55ºC) | - | A++ | A++ | A++ | A++ | A++ | A++ | |
Water Side Heat Exchanger | - | Plate heat exchanger | Plate heat exchanger | Plate heat exchanger | Plate heat exchanger | Plate heat exchanger | Plate heat exchanger | |
Display controller | - | LCD touch screen | LCD touch screen | LCD touch screen | LCD touch screen | LCD touch screen | LCD touch screen | |
Backup heater (Optional) | kW | 3kW | 3kW | 3kW | 3kW | 3kW | 3kW | |
Expansion vessel | / | 3L | 3L | 5L | 5L | 5L | 5L | |
Refrigerant Type | - | R290 | R290 | R290 | R290 | R290 | R290 | |
Max Oulet Water Temperature | ºC | 75 | 75 | 75 | 75 | 75 | 75 | |
Working Ambeint Temperature | ºC | -25~43 | -25~43 | -25~43 | -25~43 | -25~43 | -25~43 | |
Water connection | inch | G1-1/4 | G1-1/4 | G1-1/4 | G1-1/4 | G1-1/4 | G1-1/4 | |
Sound pressure Level @1m | dB(A) | 50 | 50 | 52 | 53 | 58 | 58 | |
Net Dimension (L*W*H) | mm | 1085*440*840 | 1085*440*840 | 1150*430*960 | 1150*430*960 | 1150*430*1400 | 1150*430*1400 |
1.Outdoor air temperature 7ºC DB,6ºC WB;EWT 30ºC,LWT 35ºC.
2.Outdoor air temperature 7ºC DB,6ºC WB;EWT 47ºC,LWT 55ºC.
3.Outdoor air temperature 20ºC DB,15ºC WB;EWT 15ºC,LWT 55ºC.
4.Outdoor air temperature 35ºC DB,24ºC WB;EWT 12ºC,LWT 7ºC.
5.The Specifications are subject to changes without notice.
6.Relevant EU Standards and Legislation:EN14511,EN14825

R32 environmental refrigerant

DHW tank disinfection

Climate curve
You can choose different climate correlation curves or your own customised curve. Once the curve is selected, the unit sets the outlet water temperature automatically according to the outdoor ambient air temperature.

Floor preheating and drying
Protect your home floor by activating the Floor Preheating function which slowly increases the heating temperature of the floor coils, avoiding possible floor damaging and transitioning smoothly to the heating function. The Floor Drying Up function provides an additional solution to the installer as it helps remove any residual moisture from newly installed floor coils, further protecting the installation and ensuring the optimal and effective operation of the heat pump.
Powerful heating with high efficiency



Mode combination

Fast DHW


Wotech Project cases:


