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| The NL-G30KD is an EVI commercial air source heat pump designed for central heating and cooling systems. It provides 96kW heating capacity and 73kW cooling capacity, making it suitable for large buildings that require stable hot water or chilled water supply throughout the year. With R410A refrigerant, Copeland ZW series compressor, hydrophilic corrugated fin evaporator and high-efficiency heat exchanger, the unit can operate under ambient temperatures from -25°C to 43°C. Its 19.5m³/h water flow helps support large-scale water circulation, while EVI technology improves low-temperature heating performance and system reliability for commercial projects such as hotels, schools, factories and office buildings. | |||||||||
NL-G30KD 96kW
Nulite New Energy
The NULITE Venus Series EVI commercial AC heat pump water heater is designed for central heating and cooling systems. Featuring EVI (Enhanced Vapor Injection) technology, it operates reliably in ambient temperatures as low as -25°C, meeting year-round heating, cooling, and hot water demands in cold climates. The series covers models from NL-G3KD to NL-G60KD, with power supply options of 220V/50Hz and 380V/50Hz, and an AC water temperature range of 7-12°C to 35-45°C. It is suitable for hotels, commercial buildings, and industrial projects. All models use R410A eco-friendly refrigerant, offering high efficiency and stable performance. With flexible capacity options from small commercial sites to large centralized systems, it is an ideal solution for commercial HVAC and hot water applications.
With 96kW heating capacity and 73kW cooling capacity, the NL-G30KD can support large central heating and cooling systems. It is suitable for hotels, schools, factories, office buildings and commercial spaces, helping users maintain stable indoor comfort and hot water supply during high-demand operation.
The unit adopts EVI technology and can operate under ambient temperatures down to -25°C. This helps improve heating stability in cold regions, reducing the risk of insufficient heating performance during winter and making the system more reliable for year-round commercial applications.
The hydrophilic corrugated fin evaporator and high-efficiency heat exchanger help improve heat absorption and heat transfer performance. This allows the unit to use ambient air energy more effectively, helping customers reduce energy waste and improve overall system efficiency.
Equipped with a Copeland ZW series compressor, the NL-G30KD is designed for demanding commercial operation. The compressor supports stable performance, high-pressure resistance and long service life, helping users reduce maintenance pressure and improve system reliability.
The unit uses an international famous brand control chip and supports RS485 communication and linked switch functions. This makes it easier to connect with commercial central heating and cooling systems, helping installers and users manage operation more conveniently and efficiently.
Equipped with PV DC direct-drive technology, this heat pump uses DC output from photovoltaics to drive the compressor directly. Inverters and batteries are not required, optimising solar power usage. It can save up to 90% energy on sunny days, with an average energy-saving ratio of roughly 60%. The system prioritises PV power and switches smoothly to mains power, which automatically supplements insufficient PV output.
- Low tariff signal: Unit triggers boost mode to bank heat in the DHW tank.
- Normal tariff signal: High‑efficiency operation for balanced heating capacity and power use.
- High tariff signal: Limited runtime; space heating function only.
The unit supports Modbus RTU protocol, providing seamless integration with building automation and energy management systems. Key operating data—including water temperatures, compressor status, operating mode, fault codes, and energy consumption—is monitored in real time, and on/off, mode switching, temperature setpoints, and special functions like quiet mode and legionella disinfection are controlled remotely. Multi-unit networking allows centralized management of several heat pumps.Heat pumps can be integrated into customers' own control systems for remote monitoring and control.
Cascade application: the cascade function allows up to 16 units to be combined into one system. The intelligent cascade application allocates load across as many as 16 units according to the building's actual capacity demand, and can simultaneously deliver both air conditioning and DHW hot water.
Advanced EVI technology ensures high performance in cold climates.
*EVI Technology
Adopts Enhanced Vapor Injection (EVI) technology to optimize the refrigeration cycle, improving heating capacity and operational stability in low-temperature environments.
*-25°C Low-Temperature Heating
Even at temperatures as low as -25°C, the system maintains reliable heat output, providing continuous and stable heating for commercial buildings in cold regions.
*Ideal for Cold-Climate Commercial Projects
EVI technology improves compressor operation under low-temperature conditions and reduces performance degradation in extreme environments, making the unit ideal for cold regions in Europe, commercial buildings, and large centralized heating projects.
From small commercial premises to large-scale centralized systems
NULITE commercial heat pumps are available in a wide range of capacities, providing flexible solutions tailored to projects of various scales – including hotels, apartment complexes, commercial buildings, and large centralized HVAC systems. Whether for a small commercial site or a large-scale project, there is a matching model to meet specific heating, cooling, and hot water demands.
Utilizing the eco-friendly R410A refrigerant—combined with advanced fans and an optimized, high-efficiency heat exchange system—this solution effectively enhances energy efficiency, delivering stable and high-performance operation for commercial heating, cooling, and hot water projects.
R410A offers excellent thermodynamic properties and heat transfer efficiency, enabling the system to maintain high operational efficiency across various conditions and minimize unnecessary energy consumption. Furthermore, by reducing long-term electricity costs, it lowers operational expenses for hotels, apartments, office buildings, and other commercial facilities, thereby generating greater economic returns.
The NULITE commercial heat pump features a top-mounted high-efficiency fan for strong airflow and stable heat exchange, a durable front air intake grille for sufficient airflow and improved heat exchange efficiency, and a robust base structure designed for reliable long-term outdoor operation.
The NULITE NL-G30KD commercial heat pump is a high-efficiency heating and cooling solution designed for hotels, schools, factories, and commercial buildings. It delivers a strong output of 96kW heating / 73kW cooling and adopts EVI technology for stable heating operation at ambient temperatures as low as -25°C, making it suitable for year-round use in cold regions. Equipped with a hydrophilic fin evaporator and high-efficiency heat exchanger, it improves overall system efficiency. The Copeland ZW series compressor ensures stable performance and long service life, while RS485 communication supports easier integration with commercial HVAC systems. NULITE is your trusted partner for commercial hot water solutions.
EVI Commercial AC Heat Pump Water Heater – Front & Rear View
Front – Clean, Professional, Strong Brand Identity
The front of the NULITE commercial heat pump features a clean and professional design with high-efficiency fans and large air intake grilles, ensuring sufficient airflow and stable heat exchange. The prominent NULITE logo enhances brand recognition, making it suitable for hotels and high-end commercial buildings
Rear – High-Efficiency Heat Exchange, Robust Structure
The rear is equipped with a large-area hydrophilic aluminum fin heat exchanger, effectively improving heat absorption and transfer efficiency while offering excellent corrosion resistance. The metal cabinet provides a robust structure for long-term outdoor operation, and the well-positioned water inlet/outlet connections simplify installation and maintenance.
As a professional OEM & ODM manufacturer, NULITE is built on quality and focused on your success. We provide comprehensive OEM and ODM services, offering flexible customization of components, specifications, functions, and appearance to meet your exact requirements. Throughout production, we apply strict quality control to ensure reliable and stable performance in every unit. Backed by an experienced professional team, we deliver one-stop service from product selection and technical solutions to after-sales support. NULITE looks forward to building long-term partnerships with global customers, achieving mutual success and lasting value together.
Installation Preparation & Pipeline Connection
Choose a clean, dry, and well-ventilated equipment room with sufficient space for installation and maintenance, and prepare a solid foundation. Connect the chilled water and cooling water pipelines according to the system diagram, and install water pumps, valves, filters, and pressure gauges to ensure stable water circulation and easy maintenance.
Electrical Wiring & Commissioning
Connect the power supply, control cables, and communication lines according to the wiring diagram. All electrical work must be performed by qualified technicians. Before startup, check water flow, pipe tightness, valve status, and system pressure, and remove air from the system. After startup, test compressor operation, water temperature, pressure, noise, vibration, and control functions, then adjust parameters for stable and efficient operation.
Hotels & Resorts
Schools & Campuses
Factories & Industrial Buildings
Office Buildings & Commercial Centers
Hospitals & Public Facilities
Commercial Heat Pump– Installation Case Studies
NULITE NL-G30KD commercial heat pumps have been successfully installed in multiple countries, including Bosnia and Herzegovina, Estonia, the Netherlands, Germany, Lithuania, and the United States, serving commercial buildings, hotels, schools, and industrial facilities. The NL-G30KD delivers 96kW heating and 73kW cooling capacity, with EVI technology ensuring stable operation at ambient temperatures as low as -25°C. Equipped with a Copeland ZW series compressor, hydrophilic fin evaporator, and high-efficiency heat exchanger, it provides reliable performance and high system efficiency across different climate conditions. The system delivers stable central heating, cooling, and hot water support, while RS485 communication enables easy integration with building HVAC systems. Its high-efficiency design helps reduce long-term operating costs compared with traditional systems.
What is the NL-G30KD used for?
The NL-G30KD is designed for commercial central heating and cooling systems. It is suitable for hotels, schools, factories, office buildings, hospitals and other large buildings that need stable hot water or chilled water supply.
What is the heating and cooling capacity of this model?
Can it work in cold climates?
What indoor terminals can it connect to?
What after-sales support can you provide?
