R290 Inverter Air Source Heat Pump

INSTALLATION VIEW

Outdoor-ready

cabinet for modern

building environments.

The product imagery shows a compact outdoor installation beside a residential facade, supporting the catalog positioning for home and light commercial climate solutions.

A4/A5 PRO Series R290 Inverter Heat Pumps

PRODUCT APPEARANCE

Clean outdoor form with integrated fan module and service-side cabinet.

Designed for residential and light commercial installation scenarios where appearance, footprint, and quiet operation all matter.

FOSHAN JUYANG NEW ENERGY CO., LTD. presents its R290 Inverter Air Source Heat Pump – a high-efficiency, eco-friendly solution for residential and commercial heating, cooling, and domestic hot water.

Key highlights include:

• Natural refrigerant R290 (GWP = 3) – fully compliant with global F-gas regulations
• Inverter technology – delivers precise temperature control and reduces energy consumption
• ERP A+++ energy efficiency rating – highest EU energy class
• Reliable cold climate performance – operates down to -25°C ambient temperature
• Wide outlet water range – heating up to 75°C, cooling down to 5°C
• Smart controls – Wi-Fi & APP control as standard, optional 4G module with IOT platform for unlimited unit monitoring
• Solar ready – optional built-in MPPT module for direct PV connection without inverter or battery
• Dual power supply design – automatically balances solar and grid power
• Integrated hydronic options – optional built-in variable frequency pump, expansion tank, auxiliary heater, and three-way valve – no external hydraulic module needed
• Premium components – Famous brand inverter compressor, SWEP plate heat exchanger, DC fan motor, silent fan blades, R290 leak sensor, EEV, pressure/flow/temperature sensors, and 4.3" touch screen
• Durable casing – galvanized steel with screw-less minimalist design

This product represents JUYANG's commitment to green heating technology, carbon reduction, and long-term reliability.

Model

230V

A4PRO—06

A4PRO-09

A4PRO-12

380V

/

/

/

Rated heating

(A7/6℃ W30/35℃)

Heating capacity range

W

2400-6900

3500-10000

4500-12600

Input power range

W

497-1640

720-2380

930-3000

COP range

W/W

4.83-4.21

4.84-4.20

4.83-4.20

Rated heating capacity

W

6000

9000

12000

Input power 

W

1360

2030

2720

COP 

W/W

4.41 

4.43 

4.41 

Rated cooling              (A35/24℃ W12/7℃)     

Rated cooling capacity

W

5000

7500

9000

Input power 

W

1760

2600

3200

EER 

W/W

2.84 

2.88 

2.81 

Hot water heating

(A20/15℃ W15-55℃)

Heating capacity

W

7500

11200

15000

Input power 

W

1650

2470

3320

COP 

W/W

4.55 

4.53 

4.52 

Hot water output

L/h

161 

240 

321 

SCOP(At 35℃)

W/W

4.73 

4.74 

4.74 

Power supply

V/Hz

220-240V～50Hz/1Ph

Max. input current

A(230V)

11.9 

16.7 

21.4 

A(380V)

/

/

/

Max. outlet water temp.(Heating)

℃

75

Min. outlet water temp.(Cooling)

℃

7

Rated water flow

m³/h

1.03 

1.55 

2.06 

Compressor

Type

/

DC INVERTER

DC INVERTER&EVI

Fan motor

Motor type

/

Brushless dc motor

Evaporator 

Type 

High-efficiency hydrophilic aluminum fin + inner-grooved copper tube

Condenser 

Type

/

Plate Heat Exchanger (If the heat pump heats city water directly, the condenser will be of the tube-in-tube type.) 

Water pressure drop

kPa

13 

16 

22 

Pipe diameter

inch

G1.0“

G1.0“

G1.0“

Max. working pressure(Mpa)

Heat exchanger side

Mpa

3.5

Low pressure

Mpa

1.6

High pressure

Mpa

3.2 

Dimensions  (L×W×H)                           

mm

1060×410×825

1060×410×825

1230×490×890

Refrigerant

type

/

R290

charge

kg

0.6

0.80 

1.00 

CO2 Equivalent

kg

1.8 

2.4 

3.0 

Net weight

kg

76

86

93

Noise

dB(A)

53

55

55

Main functions of the product

/

Heating/Cooling/Hot water

Remote control function

/

WiFi/4G (Optional)

Test Standard 

/

EN14511/EN14825/EN12102

Model

230V

A4PRO-15S

A4PRO-18S

/

/

380V

A4PRO-15T

A4PRO-18T

A4PRO-22T

A4PRO-30T

A4PRO-45T

Rated heating

(A7/6℃ W30/35℃)

Heating capacity range

W

5800-16500

6800-19500

8400-24000

9300-31000

13600-46500

Input power range

W

1200-3950

1410-4650

1750-5760

1930-7450

47250 

COP range

W/W

4.83-4.18

4.82-4.19

4.80-4.17

4.8-4.16

4.8-4.15

Rated heating capacity

W

16000

18000

22000

30000

45000

Input power 

W

3400

4100

5040

6849

10297

COP 

W/W

4.71 

4.39 

4.37 

4.38 

4.37 

Rated cooling              (A35/24℃ W12/7℃)     

Rated cooling capacity

W

12000

15000

18000

27000

40500

Input power 

W

4200

5300

6400

9574

14311

EER 

W/W

2.86 

2.83 

2.81 

2.82 

2.83 

Hot water heating

(A20/15℃ W15-55℃)

Heating capacity

W

18500

22500

28000

33500

49600

Input power 

W

4100

5020

6240

7478

11096

COP 

W/W

4.51 

4.48 

4.49 

4.48 

4.47 

Hot water output

L/h

396 

482 

600 

718 

1063 

SCOP(At 35℃)

W/W

4.73 

4.73 

4.72 

4.71 

4.70 

Power supply

V/Hz

220-240V～50Hz/1Ph

380-415V～50Hz/3Ph

380-415V～50Hz/3Ph

Max. input power

W

6000

7000

8500

9600

11300

Max. input current

A(220V)

28.6 

33.3 

/

/

A(380V)

10.0 

11.7 

14.2 

14.6 

17.2 

Max. outlet water temp.(Heating)

℃

75

Min. outlet water temp.(Cooling)

℃

7

Rated water flow

m³/h

2.75 

3.10 

3.78 

5.16 

7.74 

Compressor

Type

/

DC INVERTER&EVI

Fan motor

Motor type

/

Brushless dc motor

Evaporator 

Type

High-efficiency hydrophilic aluminum fin + inner-grooved copper tube

Condenser 

Type

/

Plate Heat Exchanger (If the heat pump heats city water directly, the condenser will be of the tube-in-tube type.) 

Water pressure drop

kPa

28 

33 

38 

43 

45 

Pipe diameter

inch

G1.0“

G1.25“

G1.25“

G1.25“

G1.5”

Max. working pressure(Mpa)

Heat exchanger side

Mpa

3.5

Low pressure

Mpa

1.6

High pressure

Mpa

3.2 

Dimensions  (L×W×H)                           

mm

1080×420×1390

1080×420×1390

1080×420×1390

1280x480x1590

1280x480x1590

Refrigerant

Type

/

R290

Charge

kg

1.30 

1.50 

1.80 

2.20 

2.50 

CO2 Equivalent

kg

3.9 

4.5 

5.4 

6.6 

7.5 

Net weight

kg

120

127

150

176

210

Noise

dB(A)

56

56

57

58

58

Main functions of the product

/

Heating/Cooling/Hot water

Remote control function

/

WiFi/4G (Optional)

Product Execution Standards

/

EN14511/EN14825/EN12102