Why choose the Weston Climate R290 Inverter Monoblock Top-Blow air-to-water heat pump?

Weston Climate R290 Inverter Monoblock Top-Blow is available in 5, 7, 9, 12, 15, and 20 kW models. All models use the R290 refrigerant and provide heating, cooling, and domestic hot water preparation.

• Wide power range 5–20 kW – allows you to choose the suitable air-to-water heat pump according to the heating demand of the building.
• COP up to 4.9 - High efficiency helps reduce electrical energy spent on heating.
• Up to 75 °C output water temperature - provides more opportunities to use various hydronic heating systems.
• Operating temperature range: –35 to +43 °C – Designed to operate in both cold winter and warm summer conditions.
• Smart leadership – The Wi-Fi control and LED control panel allow you to conveniently configure and monitor the heat pump's operation.
• Smart Grid (SG) and solar energy (PV) readiness – allows the heat pump to be integrated with smart energy management and solar energy systems.
• DC Full Inverter + EVI Technology – compressor, DC Inverter fan and DC Inverter water pump allow the unit to adjust its operation according to the actual demand.
• Flexible Electrical Connection – Depending on the model, either a 230-volt single-phase or a 380-volt three-phase solution is available.
• R290 refrigerant – modern refrigerant solution for an air-water heat pump.
• Noise level up to 48 dB(A) – a solution designed for quiet operation.
• Possibility to add a hydrobox: helps connect the outdoor unit to the building’s heating system and controls the flow of heat throughout the house. This compact and efficient unit contains all the main components—a heat exchanger, circulation pump, expansion tank, safety valve, and control unit—ensuring the heating system’s reliability and high energy efficiency. Read more HERE.

Why R290?

R290 is a natural refrigerant with a very low environmental impact. It is also well suited for modern air-to-water heat pumps, where both good efficiency and a higher possible heating water temperature are important.

Technical data:

• COP: up to 4.90
• Energy class at 35 °C: A+++
• Energy class at 55 °C: A++
• Temperature of the outlet water: up to 75 °C
• Operating temperature range: -35°C to +43°C (each unit tested at -42°C for 64h)
• Refrigerant: R290
• Nominal water flow: 0.86–3.44 m³/h, depending on the model
• Reduced water pressure: 10–35 kPa, depending on the model
• Supply voltage: 220–240 V (1-phase) or 380–415 V (3-phase), depending on the model
• Security Level: IPX4

Dimensions (length/width/height) (kg):

• 5kW: Net dimensions: 700*685*908mm, Weight: 106.5kg, Packaged dimensions: 791*757*1061, Weight: 138kg
• 7 kW: Net 700*685*908mm, Weight 113kg, With packaging 791*757*1061, Weight 144kg
• 9 kW Net 700*685*908mm, weight 116kg; with packaging 791*757*1061, weight 147kg
• 12kW net 1130*630*935mm, weight 142.5; with packaging 1220*730*1095, weight 211kg
• 15kW Net 1130*630*935mm, weight 166; with packaging 1220*730*1095, weight 211kg
• 20kW 1300*710*935mm, weight 195kg, with packaging 1390*770*1095, weight 245kg

  Hydrobox Dimensions: 710×410×1005mm and weight 47kg