Key specification for this air source heat pump: 220V/50hz,1 phase, 6kW. Everything below is reproduced from the factory data sheet. Made by Nulite New Energy (guangzhou) Co., Ltd. (9 years on the platform, factory-assessed). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Air Source Heat Pump
- Power Source: Electric
- Voltage: 220V/50hz,1 phase
- Heating Capacity: 6kW
- Housing Material: Metal
- Refrigerant: R744
- Warranty: 2 Years
Technical Specifications
| Type | Air Source Heat Pump |
|---|---|
| Heating Capacity | 6kW |
| Energy Efficiency Rating | Class A+++ |
| Application | Outdoor, Hotel, Garage, Commercial, Household |
| Refrigerant | R744 |
| Storage / Tankless | Instant / Tankless |
| Compressor | Scroll Compressor |
| Installation | Freestanding |
| App-Controlled | Yes |
| Housing Material | Metal |
| Feature | High Efficiency, Safe, Energy-Saving, Easy Operation, Easy Installation, Eco-Friendly |
| Power Source | Electric |
| Warranty | 2 Years |
| After-Sales Service Provided | Free Spare Parts |
| Operating Language | German, Spanish, French, Italian, Czech, Polish, D |
| Private Mold | No |
| Packaging Types | Plywood box |
| Place Of Origin | Guangdong, China |
| Brand | NuLite(OEM Available) |
| Function | Space Heating,Cooling & Hot Water |
| Voltage | 220V/50hz,1 phase |
| Working Ambient Temperature | -35C to 43C |
| Max Hot Water Temperature | 90-100C |
| Sound Level | <50dB |
| Heat Exchanger | SWEP Plate Heat Exchanger |
| Certification | CE |
| Selling Units | Single item |
| Single Package Size | 112X51X108 cm |
| Single Gross Weight | 140.0 kg |
Product Details
NULITE CO2 CE A+++ DC Inverter Heat Pump For High-Temp Water & Industrial Heating
1.Water can be heated up to 100°C – reducing storage tank volume and enabling disinfection, sterilization, and industrial cleaning applications.
2.EVI compressor technology ensures efficient heating even in low ambient temperatures – reliable year-round performance. 3.Full DC inverter control automatically adjusts power output based on real-time demand, maximizing energy savings. 4.Intelligent inverter control optimizes defrost cycles for enhanced efficiency and lower operating costs. 5.Monoblock design – no site-installed high-pressure refrigerant piping required. Simplifies installation and reduces labor cost
Nulite R744 CO₂ Heat Pump – Core Advantages
* Compressor – The DC inverter EVI compressor maintains high efficiency across a wide temperature range, ensuring stable performance even in extreme cold.
* Durable Evaporator – Engineered for rapid heat absorption, the durable evaporator maximises heat exchange and extends the system's operational life.
* Smart Control – Integrated Wi‑Fi connectivity allows you to monitor and adjust settings remotely, making operation simple and hassle‑free.
* Heating – The energy‑efficient heating mode delivers optimal output while minimising electricity consumption, lowering your overall energy bills.
* Compressor – The DC inverter EVI compressor maintains high efficiency across a wide temperature range, ensuring stable performance even in extreme cold.
* Durable Evaporator – Engineered for rapid heat absorption, the durable evaporator maximises heat exchange and extends the system's operational life.
* Smart Control – Integrated Wi‑Fi connectivity allows you to monitor and adjust settings remotely, making operation simple and hassle‑free.
* Heating – The energy‑efficient heating mode delivers optimal output while minimising electricity consumption, lowering your overall energy bills.
Wide Range of Applications – The Nulite CO₂ DC Inverter Household All-in-One Heat Pump utilises carbon dioxide as its refrigerant.Thanks to its high efficiency and eco‑friendly characteristics, it is increasingly being adopted across a diverse range of settings.
No.1 – Residential Heating
Underfloor heating: CO₂ heat pumps can be used for underfloor heating systems, delivering a comfortable indoor environment.Radiator heating: They are also well‑suited to traditional radiator systems, effectively raising room temperatures.
Underfloor heating: CO₂ heat pumps can be used for underfloor heating systems, delivering a comfortable indoor environment.Radiator heating: They are also well‑suited to traditional radiator systems, effectively raising room temperatures.
No.2 – Hot Water Supply
Domestic hot water: Ideal for homes, hotels, schools and similar premises, providing a reliable supply of hot water.
Swimming pool heating: Can be employed to heat swimming pool water, thereby extending the swimming season.
Domestic hot water: Ideal for homes, hotels, schools and similar premises, providing a reliable supply of hot water.
Swimming pool heating: Can be employed to heat swimming pool water, thereby extending the swimming season.
No.3 – Commercial Buildings
Office heating/cooling: CO₂ heat pumps offer an efficient solution for both heating and cooling office spaces.
Retail and supermarket HVAC: Used in supermarket air‑conditioning systems to create a comfortable shopping environment.
Office heating/cooling: CO₂ heat pumps offer an efficient solution for both heating and cooling office spaces.
Retail and supermarket HVAC: Used in supermarket air‑conditioning systems to create a comfortable shopping environment.
No.4 – Industrial Applications (including food processing and heat‑pump drying)
The CO₂ heat pump supplies hot water or steam for food processing, chemicals and other industries, recovers waste heat to boost overall energy efficiency, and provides precise temperature and humidity control in sterilisation, drying, and timber processing, while also supporting agricultural product drying to preserve quality.
The CO₂ heat pump supplies hot water or steam for food processing, chemicals and other industries, recovers waste heat to boost overall energy efficiency, and provides precise temperature and humidity control in sterilisation, drying, and timber processing, while also supporting agricultural product drying to preserve quality.
No.5 – Agricultural Applications
Greenhouse heating: Maintains a stable temperature in greenhouses, promoting healthy plant growth.
Aquaculture: Regulates water temperature in fish farms, ensuring the wellbeing and healthy development of aquatic organisms.
No.6 – Solar Energy Integration
Integration with solar thermal systems: Can be combined with solar water‑heating systems to maximise overall energy efficiency.
Greenhouse heating: Maintains a stable temperature in greenhouses, promoting healthy plant growth.
Aquaculture: Regulates water temperature in fish farms, ensuring the wellbeing and healthy development of aquatic organisms.
No.6 – Solar Energy Integration
Integration with solar thermal systems: Can be combined with solar water‑heating systems to maximise overall energy efficiency.
The NL-J2BKK/CO2 is a powerful and eco-friendly CO₂ (R744) evi dc inverter air source heat pump, designed for high-temperature water supply in extreme cold environments for farm, industrial, agriculture and husbandry use applications.
With reliable components from international suppliers and an efficient dual-stage inverter compressor, this unit ensures high performance even at low ambient temperatures as low as -35°C, while delivering hot water up to 95–100°C with high efficiency.
Model name | NL-J2BKK/CO2 |
Heating capacity (A20C,W15/W55°C) | 7KW |
Input power (A20C,W15/W55°C) | 1.89KW |
COP(A20C,W15/W55°C) | 3.54 W/W |
Rated water flow(W15/W55°C） | 0.143m3/h |
Heating capacity(A20°C,W15/W90°C) | 6.94KW |
Input power(A20°C,W15/W90°C) | 2.52KW |
COP(A20°C,W15/W90°C) | 2.75 |
Rated water flow(A20°C,W15/W90°C) | 0.081m3/h |
Max water output temperature | 95°C |
Compressor Brand | Panasonic (Japan) |
Compressor Type | Inverter Two‑Stage Compressor |
System Valve Components | Saginomiya (Japan) |
Refrigerant Type | R744 (CO₂) |
Current | 0.5A |
Max input power | 3.1kw |
Max Current | 14A |
Compressor type | Japan EVI DC Inverter Twin Rotary compressor |
Refrigerant | R744/1150g |
Inlet and outlet size | DN20 |
Nulite R744 CO₂ Heat Pump – Complete Installation Overview
The Nulite R744 CO₂ heat pump connects directly to the building's water circuit via a straightforward plumbing layout. Essential components such as the non-return valve, gate valve, Y-filter, water pump, drain valve, safety valve, and pressure-bearing hot water tank work together to ensure stable pressure, reliable flow, and long-term system protection. The unit delivers consistent hot water to shower, kitchen, and faucet outlets, meeting daily domestic demand efficiently. With its CO₂ refrigerant and monoblock design, the system achieves high-temperature output while keeping installation simple and maintenance easy.
The Nulite R744 CO₂ heat pump connects directly to the building's water circuit via a straightforward plumbing layout. Essential components such as the non-return valve, gate valve, Y-filter, water pump, drain valve, safety valve, and pressure-bearing hot water tank work together to ensure stable pressure, reliable flow, and long-term system protection. The unit delivers consistent hot water to shower, kitchen, and faucet outlets, meeting daily domestic demand efficiently. With its CO₂ refrigerant and monoblock design, the system achieves high-temperature output while keeping installation simple and maintenance easy.
Nulite R744 CO₂ Heat Pump – Installation Case Studies
The monoblock design of the Nulite R744 CO₂ heat pump eliminates the need for on‑site refrigerant pipework, significantly simplifying installation and reducing labour costs. The following case studies demonstrate how our system has been successfully deployed in residential, commercial and industrial projects, delivering reliable high‑temperature hot water with minimal maintenance requirements.
The monoblock design of the Nulite R744 CO₂ heat pump eliminates the need for on‑site refrigerant pipework, significantly simplifying installation and reducing labour costs. The following case studies demonstrate how our system has been successfully deployed in residential, commercial and industrial projects, delivering reliable high‑temperature hot water with minimal maintenance requirements.
1. We are a professional heat pump manufacturer with 23 years of experience, leading the industry with advanced technology.
2. OEM services are available to meet your specific requirements.
3. We have experienced R&D engineers and strong capabilities in OEM projects.
4. We have well-trained and professional sales and after-sales services.
5. For all inquiries about our company or products, we will reply to you within 24 hours.
6. Our advantages are quick delivery, competitive price, high quality, and long-term service for our customers.
7. We have long-term cooperation with shipping companies, which enables faster and more efficient delivery, ensuring goods are delivered safely to the designated location.
2. OEM services are available to meet your specific requirements.
3. We have experienced R&D engineers and strong capabilities in OEM projects.
4. We have well-trained and professional sales and after-sales services.
5. For all inquiries about our company or products, we will reply to you within 24 hours.
6. Our advantages are quick delivery, competitive price, high quality, and long-term service for our customers.
7. We have long-term cooperation with shipping companies, which enables faster and more efficient delivery, ensuring goods are delivered safely to the designated location.
Q: What is a CO₂ heat pump?
A：It uses CO₂ (R744) as refrigerant. Unlike normal heat pumps, it heats water up to 90°C and works well even at -25°C outdoor temps. Q: Why CO₂ instead of R32/R410A? A:CO₂ has GWP = 1 (vs. 2,000+ for others), is non‑toxic, non‑flammable, and meets strict EU/global environmental regulations. Q: What’s the efficiency (COP)? A：Typically COP 3.0–4.5. Best performance with low return water temps (e.g., 30°C return / 65°C supply). Q: Where is it mostly used? A：Hotels, hospitals, gyms, food processing, district heating – anywhere needing high‑temp sanitary hot water. Q: Does it work in cold climates? A：Yes. Full capacity down to -25°C – ideal for Northern Europe, Canada, and other cold regions. Q: Is installation different from normal heat pumps? A：Yes – it uses higher pressure (over 10 MPa), so pipes and components are heavier. Also, system design should use wide delta T (e.g., 30–40K) for best efficiency.
Q8: Why is the price higher than gas boilers or standard heat pumps? Higher‑grade compressor, stronger components, and advanced controls. But operating cost is ~70–80% lower than gas/electric systems – ROI is usually within 2–4 years. Q: How much carbon can I save? A;Up to 78% less CO₂ emissions vs. a gas boiler – helps with BREEAM, LEED, and green building credits. Q: What’s the lifespan? A;15+ years with proper maintenance – longer than most gas boilers.
Q: What are your delivery times and shipping methods?
A: For in-stock items, delivery takes 1–5 working days; for out-of-stock, 15–25 days depending on quantity. Shipping options: sea(30–50 days), air (5–10 days), rail (35–45 days), or express (5–7 days). We’ll choose the best method based on your order.
A: For in-stock items, delivery takes 1–5 working days; for out-of-stock, 15–25 days depending on quantity. Shipping options: sea(30–50 days), air (5–10 days), rail (35–45 days), or express (5–7 days). We’ll choose the best method based on your order.
Ordering and Pricing
- Minimum order quantity: 1 unit
- Volume pricing:
- 1–9 unit: US $3399 / unit
- 10–99 unit: US $3199 / unit
- 100+ unit: US $2999 / unit
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this air source heat pump?
The standard minimum order quantity is 1 unit. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 2 Years warranty. Spare parts and technical support remain available after the warranty period.
Which certifications does this air source heat pump carry?
It is supplied with CE documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the air source heat pump be supplied for my local voltage?
The standard configuration is 220V/50hz,1 phase. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Nulite New Energy (guangzhou) Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Nulite New Energy (guangzhou) Co., Ltd. range on HVACR Nexus.
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