 |
| Quantity: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| The NL-G10D is a commercial hot water heat pump water heater designed for central hot water and heating systems. With 38.5kW heating capacity and 6.6m³/h water flow, it can provide stable hot water support for hotels, resorts, apartment complexes, hospitals, schools, factories, and other medium-to-large commercial projects. The unit can deliver hot water up to 60°C and operate under ambient temperatures from -25°C to 43°C, helping users maintain a reliable hot water supply in different seasons and cold climate conditions. Using R410A refrigerant and heat pump technology, it helps reduce operating costs compared with traditional electric or boiler heating systems, while the ≤62dB(A) noise level supports a more comfortable installation environment. | |||||||||
NL-G10D 38.5kW
Nulite New Energy
The NULITE EVI commercial hot water heat pump is designed for central hot water and heating systems, suitable for hotels, resorts, apartment complexes, hospitals, schools, and other commercial facilities. Featuring EVI technology, it delivers a maximum hot water temperature of 60°C and operates reliably in ambient temperatures as low as -25°C, ensuring year-round continuous hot water supply in cold regions.
The Saturn Series covers models from NL-G3D to NL-G60D, with heating capacities ranging from 11.4kW to 230kW. Power supply options include 220V/50Hz and 380V/50Hz, offering flexible selection from small commercial sites to large centralized hot water projects. All models use R410A eco-friendly refrigerant combined with a high-efficiency heat exchange system, delivering high energy efficiency and stable performance. With a compact design and easy installation and maintenance, it is an ideal solution for commercial hot water systems.
The NL-G10D can deliver hot water at temperatures up to 60°C, making it suitable for commercial applications that require high-temperature hot water – such as hotels, hospitals, factories, and other medium-to-large commercial projects. Whether for guest rooms, medical facilities, or industrial processes, it provides a stable and reliable hot water supply to meet demanding daily needs.
Equipped with EVI technology, the unit operates stably at ambient temperatures as low as -25°C. This ensures reliable heating performance even in cold climate regions, reducing the risk of insufficient heating during winter and making it suitable for year-round commercial use in markets such as Northern Europe, Eastern Europe, and other cold regions.
The EVI Commercial Heat Pump Water Heater operates at low noise levels, ranging from ≤55dB(A) to ≤76dB(A) depending on the model. Smaller models run quietly, making them suitable for noise-sensitive commercial environments such as hotel guest areas, hospital wards, office buildings, and residential apartments. Larger models, despite higher capacity, maintain reasonable noise levels through optimized fan structure and vibration damping – ensuring strong heating and cooling performance without disturbing the surrounding environment.
The larger models offer a wide range of capacity options, covering the needs of large commercial buildings to large centralized systems. Whether for hotels, hospitals, schools, factories, or large commercial complexes, there is a suitable model to match different project scales, building types, and actual load demands. This multi-model coverage allows the system to meet the high-load continuous operation requirements of large projects while supporting stable operation of centralized HVAC systems – helping customers achieve more efficient and cost-effective system configurations.
Using R410A eco-friendly refrigerant and heat pump technology, it extracts heat from ambient air to heat water with a COP of 3–5 significantly reducing power consumption compared with electric or boiler systems. No fuel purchase or storage required, lowering both operating and maintenance costs. Ideal for hotels, hospitals, and factories with continuous large-volume hot water demand, delivering significant long-term savings.
Commercial Central Hot Water / Heating & Cooling System
*Designed for Central Hot Water
Specifically designed for central hot water and heating systems. It provides a stable and reliable hot water supply for commercial applications such as hotels, hospitals, schools, and apartment buildings, meeting daily high-volume hot water demands with consistent performance.
*Heating & Cooling
Meets the dual needs of centralized hot water supply, space heating, and cooling. The system simultaneously delivers domestic hot water, space heating for colder seasons, and efficient cooling for warmer months – making it a versatile year-round climate control solution for hotels, offices, hospitals, and other commercial facilities.
*Eco-friendly R410a refrigerant for superior energy efficiency
Utilizes eco-friendly R410a refrigerant, offering high heat exchange efficiency and reduced energy consumption during system operation.
*Significantly lower operating costs
Operating costs are substantially lower than those of traditional electric or gas boilers, resulting in significant long-term savings.
*Renewable air-source energy for low-carbon, eco-friendly
operation Harnesses renewable air-source energy; low-carbon and environmentally friendly, supporting green building initiatives and carbon neutrality goals.
This heat pump incorporates PV DC direct-drive technology. DC power from the photovoltaic array runs the compressor directly, eliminating inverters and batteries to maximize solar energy utilization. It achieves up to 90% energy savings on sunny days and an overall energy saving of approximately 60%. Grid and PV power transition seamlessly. The system prioritizes PV power, and utility power automatically makes up for any shortfall in PV output.
When receiving a low electricity price signal, the unit operates in boost mode to store heat in the DHW tank.
When receiving a normal price signal, the unit runs at high efficiency to balance capacity output and power consumption.
When receiving a high price signal, the unit operates for a limited time and provides only the space heating function.
The unit offers Modbus RTU protocol, making seamless integration with building automation and energy management systems possible. Key operating data—water temperatures, compressor status, operating mode, fault codes, and energy consumption—can be monitored in real time, while on/off, mode switching, temperature setpoints, and special functions such as quiet mode and legionella disinfection can be controlled remotely. Multi-unit networking allows several heat pumps to be managed centrally.Heat pumps support integration with customers' control systems, allowing remote monitoring and control.
Cascade application: up to 16 units can be combined in one system. The intelligent cascade control distributes the load across a maximum of 16 units according to the building's actual capacity needs, and supports simultaneous air conditioning and DHW hot water.
NULITE commercial heat pumps are built with a high-efficiency fan, robust metal cabinet, clean professional appearance, and stable base structure – ensuring quiet operation, dependable outdoor performance, and secure installation for long-term commercial applications.
NULITE EVI commercial hot water heat pump water heaters are built with high-quality core components to ensure reliable, efficient, and long-lasting performance: the EVI compressor delivers stable heating even in low ambient temperatures; the world-famous EEV (electronic expansion valve) precisely controls refrigerant flow through PID technology to reduce energy consumption; the compressors switch on or off according to actual energy demand for reliable and easy operation; the hydrophilic coating air exchanger provides strong anti-corrosion performance and high heat exchange efficiency; and the patented C&S heat exchanger with strong counter-current design improves both efficiency and reliability of the unit.
Commerical Hot Water Heat Pump Water Heater – Front & Rear View
Front View– Clean & Durable Design
The front of the NULITE commercial heat pump adopts a clean, modern white closed panel, delivering a sleek and professional look that enhances brand visibility. Its streamlined appearance is ideal for outdoor commercial installation while protecting internal components and reinforcing brand identity.
Rear View – High-Efficiency Air Corridor
The rear features a large air intake area with hydrophilic aluminum fins, ensuring high heat transfer efficiency and excellent corrosion resistance. The optimized design improves heat exchange performance and supports stable outdoor operation.
As an OEM & ODM commercial hot water manufacturer, we offer tailored configurations for central hot water projects. Our customization covers six key areas: accessories, compressor options, water pumps & controls, valves & heat exchangers, refrigerant & electrical configuration, and branding, labels & packaging – helping you build your own brand with flexible, project-ready solutions.
Commercial Air Source Heat Pump – Installation Connection Diagram
1. Heating Only System
The heat pump unit connects to a buffer tank and circulation pump, then supplies hot water to fan coil units, radiators, or floor heating. This configuration provides stable space heating for commercial buildings such as hotels, schools, apartments, and factories.
2. Hot Water Only System
The heat pump unit connects to a hot water tank and circulation pump. Cold water enters the tank, is heated by the heat pump, and then supplies domestic hot water for showers, bathrooms, and kitchens. This configuration delivers efficient domestic hot water for daily use.
System Highlights
The system supports two dedicated configurations: Heating Only and Hot Water Only. In the Heating Only System, the heat pump connects to a buffer tank and circulation pump, supplying hot water to fan coil units, radiators, or floor heating to provide stable space heating for commercial buildings. In the Hot Water Only System, the heat pump connects to a hot water tank and circulation pump, heating cold water for domestic use in showers, bathrooms, and kitchens.
Hotels & Resorts
Hospitals & Nursing Homes
Schools & Universities
Factories & Industrial Buildings
Apartments & Residential Communities
R290 DC Inverter Air-Source Heat Pump – Installation Case Studies
NULITE EVI commercial hot water heat pumps have been successfully installed in multiple countries, including Norway, Lithuania, Spain, the United States, and France, serving hotels, apartments, and commercial buildings with reliable central hot water and heating solutions. In Norway, the system operates stably in extreme cold climates, delivering continuous hot water and space heating. In Lithuania, it provides stable hot water for hotel guest rooms and public areas with high efficiency and low operating costs. In Spain, it supplies high-temperature hot water for resort guest rooms, restaurants, and kitchens, meeting peak-season demand. In the United States, it delivers centralized hot water for apartment buildings, replacing traditional individual water heaters and improving management efficiency. In France, it provides reliable hot water and heating support for commercial buildings with low maintenance requirements. With stable and reliable performance, NULITE meets diverse commercial hot water needs across different markets.
What is the maximum hot water temperature of this heat pump?
The maximum hot water temperature is 60°C, suitable for commercial applications requiring high-temperature hot water, such as hotels, hospitals, and factories.
What is the operating ambient temperature range?
What refrigerant does this heat pump use?
What is the available capacity range of this series?
What is the noise level of this heat pump?
