SPRSUN Heat Pump CGK-030V3L-B SERIES (12kW) Monobloc Heat Pump

The SPRSUN CGK-030V3L-B SERIES (12 kW) Monobloc Heat Pump is an air-to-water heat pump that extracts heat from the outside air and uses it to heat, cool, and provide hot water to your home. Because it's a monobloc design , all the key components (compressor, evaporator, fan, heat exchanger, and control system) are housed in a single outdoor unit. This makes installation and maintenance easier, as there's no need for a separate indoor unit.

How does it work?

1. Heat extraction from outside air
   

• The fan draws in outside air.

• The refrigerant in the evaporator absorbs heat from the air, even at low outside temperatures.
  
  

2. Compression and warming up
   

• The compressor pressurises the refrigerant, causing its temperature to rise sharply.
  
  

3. Heat transfer to water circuit
   

• The heat exchanger transfers the heat from the coolant to the water circuit (for underfloor heating, radiators or a boiler).
  
  

4. Cooling (optional)
   

• In summer the process can be reversed: the heat pump extracts heat from the house and releases it into the outside air.
  
  

5. Sanitary hot water
   

• It can also control a boiler for hot tap water (shower, kitchen, etc.).
  
  

Main advantages of this monobloc heat pump:

• All-in-one system → no separate indoor unit required.
  

• Energy efficient → often works with a COP of 4 or higher (1 kW of electricity = 4 kW of heat).
  

• Sustainable → reduces gas consumption and CO₂ emissions.
  

• User-friendly → usually equipped with smart controls and silent operation.
  

• Flexible in use → suitable for both new construction and renovation.

Key Specifications

Advantages

• High efficiency : good performance even at lower temperatures thanks to inverter/EVI technology.
  

• Environmentally friendly refrigerant R32, lower GWP than many older refrigerants.
  

• Reliability and quality : components such as a Panasonic compressor, brushless fans, and smart defrost technology.
  

• Wide temperature range : also works in quite cold outdoor conditions.
  

• Ease of use : touchscreen, WiFi control, online monitoring.
  
  

Disadvantages / What to look out for

• Noise : Relatively loud at full load (approx. 59 dB(A)) — depending on where it's placed, this may be audible. Night mode helps, but inspect the location.
  

• Costs/Investment : High purchase/installation costs, especially if you also need buffer tanks or other modifications. Subsidies can help.
  

• Water-side installation : although refrigerant gas work is not necessary (monobloc), the connection to the water circuit must be done properly, with attention to water quality, correct pipe dimensions, sufficient flow rate, etc.
  

• Performance in extreme cold weather : At very low outdoor temperatures the CoP drops — still working, but less efficient.

Applications / What is it suitable for?

• Homes with central heating via radiators or underfloor heating where you want to reduce or avoid gas use.
  

• Areas with cold winters, but where you still want reliable heating without bulky gas installations.
  

• New construction or renovation projects where energy efficiency and environmental labels are important.
  

• Houses where cooling is also required or where tap water heating is integrated.
  
  

Tips for purchasing/installation

1. Sizing : calculate the capacity based on insulation level, surface area, desired indoor temperature, and climate. You often need less than the maximum capacity, provided the insulation and system are good.
   

2. Buffer tank : Use a buffer tank to reduce switching cycles, which improves efficiency and service life.
   

3. Good installation quality : correct hydraulic connection, good water settings, and ensuring that the water-side balance and water quality are in order.
   

4. Maintenance : cleaning the outdoor unit, checking filters, checking for leaks, and checking the controller settings.
   

5. Subsidies & regulations : inquire about available subsidies or certifications (e.g., ISDE in the EU/Netherlands). The CGK-030V3L-B has reporting code KA22403 for subsidies in the Netherlands.

Subsidy Available:

Take advantage of a subsidy now that makes environmentally friendly heating more affordable than ever.
Type: SPRSUN Heat Pump CGK-030V3L-B SERIES (9.5 kW)
Subsidy: €3225,-
Reporting code: KA22403
Source: https://www.rvo.nl/subsidies-financiering/isde/woningeigenaars/warmtepomp