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The KRF-160II/C stands as the flagship model in our CO2 heat pump series, specifically engineered to meet large-scale, high-load centralized hot water demands. This powerful heat pump utilizes industry-leading CO2 refrigeration technology and a high-performance variable frequency compressor to consistently deliver hot water up to 75°C with exceptional energy efficiency and minimal environmental footprint, serving as the ultimate solution for replacing traditional fossil fuel boilers. It is the ultimate choice for achieving green energy transition, reducing operational costs, and enhancing energy efficiency.
>> Product Operate Guide

Environmental Benefits:
CO₂, as a natural refrigerant, exhibits zero ODP and an ultralow GWP of 1, significantly lower than synthetic alternatives (e.g., R410A with GWP = 2080). This climate-friendly profile makes it ideal for low-carbon thermal systems, aligning with global carbon neutrality targets.
Efficiency and Energy Savings
By leveraging transcritical cycle technology, CO₂ heat pumps achieve a COP >4.0 under standard conditions and retain high efficiency in low-temperature environments. Compared to conventional systems, they reduce energy use by >50%, enhancing thermal system efficiency.
Extreme Heating Capacity:
Boasts an industry-leading heating capacity of up to 155.2 kW (under standard conditions), making it an ideal choice for meeting extra-large heat load requirements.
Ultra-High Water Flow:
Designed for an impressive water flow of up to 5.4 m³/h, capable of providing massive amounts of high-temperature hot water for large-scale users, fulfilling the most stringent demands.
Optimized Energy Utilization:
Despite its immense heating output, its input power is only 60.9 kW, demonstrating outstanding energy conversion efficiency and significantly reducing operating costs.
High-Pressure Pipe Interface:
Equipped with a DN50 water pipe joint, specifically designed for large flow rates, ensuring stable and reliable system operation with minimal pressure loss.
All-Weather Operation:
Even under extreme ultra-low temperatures (-20°C), it can still provide a powerful heating capacity of 93.1 kW, ensuring reliable operation during severe cold seasons.
| Unit type | KRF-60II/C | KRF-80II/C | KRF-120II/C | KRF-160II/C | |
| Power supply | Three-phase five-wire380V/50Hz | ||||
| Heating mode | Circulating type | ||||
| Standard working condition | Heating capacity(kw) | 59 | 78.5 | 117.1 | 155.2 |
| Input Pover(kw) | 24.6 | 30.8 | 45.5 | 60.9 | |
| Vater flow(m³/h) | 2.03 | 2.7 | 4 | 5.4 | |
| Low tenperature condition | Heating capacity(kw) | 47.1 | 57.1 | 88.2 | 116.9 |
| Input Pover(kw) | 23.2 | 26.4 | 40.1 | 53.1 | |
| Tater flow(m³/h) | 1.72 | 2 | 3 | 4 | |
| Ultra low tenperature working condition | Heating capacity(kw) | 35.6 | 43.1 | 63.8 | 93.1 |
| Input Pover(kw) | 20.5 | 24.8 | 36.7 | 53.5 | |
| Vater flow(m³/h) | 1.22 | 1.48 | 2.19 | 3.2 | |
| Conponent Information | vater pipe joint | DN32 | DN40 | DN40 | DN50 |
| Vater heat exchanger | Jacketed heat exchanger | ||||
| Air Heat Exchanger | Aluminun Fin for copper tube | ||||
| compressor type | Semi-enclosed reciprocating(variable frequency)/R744 | ||||
| Operation Panel | Color touch screen | ||||
| Maxinum outlet temperature(℃) | 75 | ||||
| Refrigerants | R744(CO2)/R134a | ||||
| Design pressure(MPa) | High side 10,lov side 8(R44) | ||||
Industrial Waste Heat Recovery & Process Heating Solutions:
CO₂ heat pumps revolutionize industrial operations by recovering waste heat and delivering high-temperature thermal energy for sectors like petrochemicals, food processing, and pharmaceuticals. This advanced technology transforms low-grade waste heat into valuable steam or process heat, dramatically improving energy efficiency while advancing sustainability objectives through closed-loop energy recycling.
Major Industrial Facilities:
Indispensable for large-scale food and beverage processing plants, pharmaceutical manufacturing for cleanroom environments and sterilization, large-scale textile dyeing and finishing plants requiring vast amounts of hot water for various baths, paper mills for pulp processing, and automotive manufacturing plants needing hot water for parts cleaning and surface treatment. This model can serve as a primary heat source, significantly reducing reliance on fossil fuels for process heat.
District Heating Systems:
Serves as a fundamental primary heat source for urban district heating networks supplying multiple buildings or entire neighborhoods, large industrial park heating systems supporting numerous factories, or centralized heating for vast university campuses. It provides a robust base load heat supply and can effectively handle peak demand periods, contributing to regional energy independence and decarbonization goals.
Large-Scale Commercial & Mixed-Use Developments:
The core hot water generation system for mega shopping malls (with hundreds of retail units), large convention centers, multi-tower office complexes, and expansive residential communities (e.g., over 300 units). It efficiently manages the diverse and often simultaneous demands for domestic hot water across a vast area, significantly lowering the overall energy footprint of these developments.
Hospital & Healthcare Campuses:
Crucial for large hospital complexes, medical research centers with extensive laboratory needs, and large-scale senior living communities/long-term care facilities. It ensures an uninterrupted supply of sterile hot water for operating rooms, vast laundries processing high volumes of linen, large-scale kitchens, and numerous patient care areas, where consistent hygiene and comfort are non-negotiable.
Agricultural & Aquaculture (Industrial Scale):
For industrial-sized animal husbandry operations (e.g., large poultry farms needing significant hot water for processing), extensive fish farms (aquaculture) requiring precise and consistent water temperatures for different growth stages, and expansive commercial greenhouse complexes that rely heavily on heated water for environmental control, specialized hydroponic systems, or efficient irrigation to maximize yield.

>> Product Operate Guide
After receiving the goods, the buyer will provide a instructional video.
Q1.How does the CO₂ heat pump perform in extreme cold compared to conventional models?
A: Unlike conventional heat pumps, which struggle to operate below -10 °C, CO₂ heat pumps achieve reliable operation at temperatures as low as -25 °C.
Q2.What distinguishes CO₂ heat pumps from conventional air conditioning or heat pump systems?
A: Conventional heat pumps typically generate hot water at temperatures below 60 °C, with diminished heating efficiency in cold winter conditions. In contrast, CO₂ heat pumps function as high-performance systems, capable of delivering hot water at >90 °C while maintaining stable operation at -20 °C in winter. This superior performance is attributed to their use of natural carbon dioxide (CO₂) as a refrigerant, which enhances environmental sustainability by eliminating synthetic refrigerants with high global warming potential (GWP).
3.Does the system exhibit operational failures under extremely cold winter conditions?
A: Standard heat pumps may suffer performance deterioration at temperatures below -10 °C, whereas CO₂ heat pumps sustain normal functionality down to -25 °C, as demonstrated through field validation in Nordic regions and Canada. However, prolonged exposure to extreme weather may induce slight efficiency reductions.
4.What is the minimum order quantity (MOQ) ?
A: 1 units.
5.Do you provide OEM or private labeling?
A: Yes. We offer OEM/ODM services, including: Logo printing and Custom packaging.
6.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.