CO2 (R744) Air Source Heat Pump KRF-60IIC

The KRF-60II/C is a compact and efficient member of our CO2 heat pump series, specifically designed for small to medium-scale hot water demands. It skillfully combines environmentally friendly R744 refrigerant technology with an advanced variable frequency compressor, ensuring exceptional energy efficiency and low carbon emissions while delivering hot water up to 75°C. Its compact dimensions and optimized performance make it an ideal choice for applications with limited space or moderate heat loads, perfectly replacing traditional high-energy-consuming gas or electric heating systems.

>> CO2 heat pump system diagram

• Environmentally friendly features：

  Carbon dioxide (CO₂), a natural refrigerant, exhibits zero ozone depletion potential (ODP) and a global warming potential (GWP) of 1, significantly lower than conventional refrigerants (e.g., R410A with a GWP of 2080). Its minimal environmental impact renders it a preferred alternative for green refrigeration and heating technologies, aligning with sustainability goals.

  
  

• Advantages of high efficiency and energy conservation：

  Leveraging transcritical cycle technology, CO₂ heat pumps achieve a coefficient of performance (COP) exceeding 4.0 under standard conditions, with minimal efficiency degradation at low temperatures. Compared to traditional heating systems, they reduce energy consumption by over 50%, enhancing overall system energy efficiency.

  
  

• Compact & Efficient: 

  Provides a stable heating capacity of 59 kW under standard working conditions, while maintaining a low input power of 24.6 kW, demonstrating significant energy output from a small footprint.

  
  

• Precise Water Supply: 

  Designed for a water flow of 2.03 m³/h, capable of providing stable and sufficient high-temperature hot water for small to medium-scale users, avoiding resource waste.

  
  

• Low Noise Operation:

  Utilizes a semi-enclosed variable frequency compressor, resulting in low operational noise, minimizing environmental impact, particularly suitable for settings requiring quiet environments.

• Small Commercial Establishments: 

  This model is perfectly suited for boutique hotels with 20-50 rooms, small cafes and restaurants requiring consistent hot water for dishwashing, food preparation, and sanitary needs, as well as hair salons, beauty parlors, and laundromats where a constant supply of high-temperature water for specific processes (e.g., dyeing, washing machines) is crucial for daily operations and customer satisfaction. Its efficiency helps these businesses reduce their utility bills significantly.

  
  

• Residential & Multi-Family Homes: 

  The KRF-60II/C can serve as a highly efficient central hot water source for large single-family residences with multiple bathrooms and high demand, or for small apartment buildings/condominiums typically housing 10-20 units. By providing hot water centrally, it minimizes the need for multiple smaller water heaters, reducing overall energy consumption and offering residents a reliable supply.

  
  

• Educational & Healthcare Facilities (Small Scale): 

  It provides essential hot water for school dormitories for student showers and common areas, small clinics and dental offices for sterilization and patient care, and daycare centers ensuring hygienic conditions. Its reliability and ability to deliver hot water at precise temperatures are vital for maintaining health and safety standards in these sensitive environments.

  
  

• Agricultural Sector: 

  In the agricultural domain, this heat pump is suitable for small-scale dairy farms for maintaining precise water temperatures for milking parlor sanitation and equipment cleaning, for small greenhouses to provide consistent heating for grow beds or water for hydroponic systems, and for small-to-medium animal husbandry operations requiring controlled warm water for cleaning pens, animal welfare, or feed preparation.

  
  

• Leisure & Fitness Facilities: 

  Ideal for small gyms, yoga studios, and personal training centers to provide warm water for showers, changing rooms, and facility cleaning, enhancing the comfort and experience for members after their workouts. Its compact size allows for installation in spaces where larger systems might not fit.

  
  

• Workshops & Studios: 

  Offering hot water for art studios, craft workshops, and small manufacturing workshops that require warm water for specific processes like dyeing, rinsing materials, or preparing solutions, as well as for general cleaning. It provides a reliable and energy-efficient source for these specialized applications.

>> Product Operate Guide

Upon taking delivery of the goods, the purchaser will furnish an instructional video.

Q1. Do you want to add refrigerant frequently?

A: Basically no need! CO ₂ is a closed cycle, similar to a refrigerator, and can be used for more than 10 years without any need for maintenance.

Q2. Does the system fail in extremely cold winters?

A: Conventional heat pumps may experience performance degradation at -10 °C, whereas CO₂ heat pumps maintain normal operation down to -25 °C (as validated in Nordic regions and Canada). However, efficiency may marginally decline under prolonged extreme weather.                                                                                                                             

Q3. Do heat pumps achieve comparable cooling efficiency to air conditioners?

A: When evaluating models with equivalent SEER ratings, the cooling efficacy of heat pumps and air conditioners demonstrates negligible divergence. Nevertheless, variables such as dwelling dimensions, fenestration quality, thermal insulation efficacy, and solar irradiance exposure (building orientation) exert substantial influence on overall cooling performance.

Q4. What is the minimum order quantity (MOQ) ?

A: 1 units.

Q5. Do you provide OEM or private labeling?

A: Yes. We offer OEM/ODM services, including: Logo printing and Custom packaging.

Q6. Do you offer technical training and support?

A: Yes. We provide: Online and on-site training for sales and technicians, Detailed installation manuals and wiring diagrams, Troubleshooting guides, Remote video support during first installations,  etc.