SPRSUN Heat Pump CGK-050V3L-B SERIES (20 kW) Monobloc Heat Pump

What is the SPRSUN CGK-050V3L-B Monobloc Heat Pump

The SPRSUN CGK-050V3L-B is a monobloc air-to-water heat pump with approximately 20 kW of power, designed for heating, cooling, and hot water. Below, I'll explain what it is, how it works, and its key features.

What is it

• It's a monobloc heat pump : all the cooling components are housed in the outdoor unit. So you don't need a separate indoor unit or refrigerant lines between the outside and inside.

• It uses R32 refrigerant , which is more efficient and has a lower environmental impact than older refrigerants.
  

• Suitable for colder climates: it can operate at low outdoor temperatures (down to about −25 °C ) without too much loss of performance.

How does it work

The operation is based on the standard principles of an air-to-water heat pump, with some additional features:

1. Heat from the outside air
   Outside air is used as a heat source. The air passes over the evaporator, where the refrigerant absorbs heat—even at low temperatures.

2. Compressor & inverter technology
   An inverter-controlled compressor adjusts power to demand. This allows it to operate in a modulating manner (less power when demand is lower), which is more economical.

3. Heat transfer to water circuit
   The heat from the coolant is transferred to water (for heating radiators or underfloor heating, and possibly hot tap water) via a heat exchanger.
   

4. Cooling capacity
   The unit can also cool by reversing the process, so that heat from indoors is transferred to the outside air.

5. Regulation & additional features
   

• 5-inch touchscreen for operation.

• WiFi/app control possible.

• Programs such as anti-freeze (defrost) and frost protection.

Key Features & Specifications

Below are the specifications of the CGK-050V3L-B (approximately 20 kW) as known from various sources: