 |
| Quantity: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| The NL-G5B is a commercial hot water heat pump water heater designed for central hot water and heating systems. With 19.7kW heating capacity and 3.4m³/h water flow, it can provide stable hot water support for hotels, apartments, schools, factories and other medium-sized commercial projects. The unit can deliver up to 60°C hot water and operate under ambient temperatures from -10°C to 43°C, helping users maintain reliable hot water supply in different seasons. Using R410A refrigerant and heat pump technology, it helps reduce operating costs compared with traditional electric or boiler heating systems, while the ≤58dB(A) noise level supports a more comfortable installation environment. | |||||||||
NL-G5B 19.7kW
Nulite New Energy
NULITE commercial hot water heat pumps are designed for central hot water and heating systems, making them suitable for hotels, resorts, apartment complexes, and other commercial facilities. This series delivers a stable hot water supply at temperatures up to 60°C and operates reliably in ambient temperatures as low as -10°C, ensuring a continuous hot water supply year-round.
Utilizing eco-friendly R410A refrigerant, these units offer high energy efficiency and stable performance. They are available in a range of capacities to suit various project scales, covering everything from small commercial sites to large-scale centralized hot water projects. With a compact design and ease of installation and maintenance, they represent an ideal solution for commercial hot water systems.
With 19.7kW heating capacity and 3.4m³/h water flow, the NL-G5B can provide stable hot water support for medium-sized commercial projects. It helps hotels, apartments, schools and dormitories meet continuous hot water demand during peak usage hours.
Using air source heat pump technology, the unit absorbs heat from ambient air to produce hot water. Compared with traditional electric heating or boiler systems, it helps reduce energy consumption and long-term operating costs, making daily hot water supply more economical for commercial users.
The NL-G5B can provide up to 60°C hot water and operate under ambient temperatures from -10°C to 43°C. This helps users maintain stable hot water supply in different weather conditions, reducing the risk of insufficient hot water during seasonal temperature changes.
With a noise level of ≤58dB(A), the unit is suitable for commercial buildings where comfort matters. It can be installed in hotels, apartments or public facilities without causing excessive disturbance, helping create a quieter and more comfortable environment for users.
The NL-G5B is designed for central hot water and heating systems, making it suitable for new installations or system upgrades. It can be integrated into commercial water systems to provide a more efficient, stable and manageable hot water solution for different project needs.
Commercial Central Hot Water / Heating System
*Designed for Central Hot Water & Heating
Designed specifically for central hot water and heating systems – one unit covers both centralized hot water and space heating.
*Dual Function for Commercial Applications
Delivers both centralized hot water supply and space heating for hotels, hospitals, schools, apartments, and factories – stable, reliable, and built for year-round operation.
*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.
Upon receiving a low electricity tariff signal, the heat pump activates boost mode to charge the DHW tank with stored heat.
Under a normal tariff signal, the unit operates at high efficiency to balance its heating capacity output and power draw.
When a high electricity tariff signal is detected, the unit runs for a restricted duration and delivers space heating only.
Thanks to its Modbus RTU protocol, the unit integrates seamlessly with building automation and energy management systems. It delivers real-time monitoring of key operating data, including water temperatures, compressor status, operating mode, fault codes, and energy consumption, and enables remote control of on/off, mode switching, temperature setpoints, and special functions like quiet mode and legionella disinfection. Multi-unit networking facilitates centralized management of multiple heat pumps.Customers can utilize their own control systems to integrate heat pumps and enable remote monitoring and control.
Scale your system effortlessly by linking up to 16 units in a single cascade network. The intelligent controller automatically balances the workload based on the building's real-time demands, seamlessly delivering both space conditioning and domestic hot water.
NULITE commercial heat pumps feature a high-efficiency fan, durable metal cabinet, clean professional design, and stable base structure – delivering low-noise operation, reliable outdoor performance, and secure installation for long-lasting commercial use.
NULITE commercial swimming pool heat pumps are built with high-quality core components to ensure reliable, efficient, and long-lasting performance: 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 features a clean, modern white closed panel for strong brand recognition. Its sleek appearance is ideal for outdoor commercial installation, while also protecting internal components and enhancing brand visibility.
Rear View – High-Efficiency Air Corridor
Equipped with a large rear air intake area and hydrophilic aluminum fins, it ensures high heat transfer efficiency and excellent corrosion resistance. The optimized design enhances 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.
Preparation – Location & Water System Setup
Choose a flat, solid, well-drained concrete base with sufficient space for air circulation and maintenance. Avoid enclosed areas, blocked outlets, or heat sources. Then connect the heat pump to the central hot water tank or heating system with proper circulation pump, filter, valves, check valve, and pressure protection. Insulate pipes well to reduce heat loss.
Commissioning – Electrical Wiring & System Testing
Have qualified technicians complete all electrical wiring according to the nameplate and diagram, ensuring proper power supply, grounding, breaker, and protection. Connect the controller, water temperature sensor, and pump signal correctly. Before startup, fill the system, remove air, check for leaks, and confirm water flow and pressure. Start the unit, test heating, and verify stable operation before handover.
Hotels & Guesthouses
Apartments & Residential Buildings
Schools & Student Dormitories
Gyms, Spas & Leisure Facilities
Factories & Staff Dormitories
What projects is the NL-G5B suitable for?
The NL-G5B is suitable for medium-sized commercial hot water projects, such as hotels, apartments, schools, factories, dormitories, gyms and leisure facilities. It can provide stable central hot water support for places with continuous daily hot water demand.
What is the maximum hot water temperature?
Is the NL-G5B energy-saving?
Can you provide OEM or ODM service?
What support can you provide after purchase?
