R290 PV Direct Drive Inverter Air to Water Heat Pump

Juyang Energy | NatureWarm R290 Inverter Heat Pump Series

Eco-Friendly. High Efficiency. Future-Ready.

Designed for the 2026 EU F-Gas regulations, our R290 heat pumps deliver powerful heating, cooling, and domestic hot water with near-zero environmental impact

Choose Your Series

A4PRO Series (R290 Inverter)

The standard high-efficiency monobloc heat pump. Ideal for retrofits and new builds.

• Capacity: 6kW – 45kW
• SCOP up to 4.74 (A+++ ready)
• Flow temp up to 75°C
• Operates from -35°C

A5PRO Series (PV Direct Drive)

Upgraded from A4PRO with a built-in MPPT module for direct solar connection.

• Dual Power Supply: Solar + Grid
• PV Input: DC 60-350V
• No external inverter required
• Auto-adjusts solar/grid ratio

Why R290?

• GWP = 3 (1/700 of R410A)
• ODP = 0
• COP improves 10-15% vs traditional refrigerants
• Fully compliant with 2026 EU F-Gas ban

R290 is a natural refrigerant – the future of eco-friendly heating.

Advanced Technologies

Smart Control & IoT

• 4.3" touchscreen (pGDx)
• Remote control via WiFi / 4G (optional)
• PC/Mobile App: https://h.mibee.cn/
• Smart grid & demand response ready

All-Season Comfort

• Heating down to -35°C
• Cooling up to +43°C
• DHW mode from -25°C to +40°C

High Temperature Output

• Up to 75°C flow temperature
• Compatible with radiators, underfloor, fan coils
• Shorter DHW recovery & anti-legionella cycles

Ultra-Quiet

• Sound pressure as low as 45 dB(A)
• Ideal for residential areas

Compact & Lightweight

• Width just 1060 mm
• Weight from 76 kg
• Easy handling & tight-space installation

Safety First

• Leak detection (<3g/year triggers alert)
• Hermetically sealed circuit
• External gas separator on water pipe

Technical Specifications (A4PRO/A5PRO)

Max outlet water temp (heating): 75°C
Min outlet water temp (cooling): 7°C
Test standards: EN14511 / EN14825 / EN12102

Optional Accessories

• Built-in MPPT module (A5PRO standard) – direct PV connection
• 4G remote monitoring module – plug & play
• Indoor hydro unit – includes 50L buffer tank, pump, 3-way valve
• DHW tank – 100L to 1000L insulated pressurized
• Anti-vibration kit
• Y-filter & outdoor sensor
• Anti-freeze valve
• Storage tank resistance kit

Applications

• Residential heating & cooling
• Domestic hot water (DHW)
• Radiator / underfloor / fan coil systems
• Light commercial (cascade up to 10 units)
• Building retrofits & new construction

Cascade configuration supports up to 10 units – ideal for light commercial projects.

Why Juyang?

• 20+ years heat pump manufacturing
• 100+ patented technologies
• 25,000m² production base
• CNAS-accredited laboratory
• -35°C extreme cold test chamber
• TUV, CE, ERP, UL, ISO certified
• Exported to 50+ countries