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Demax Ultra-low Temperature Inverter Heating and Cooling Heat Pump HLHK-10LNCDII-1N

Demax Ultra-low Temperature Inverter Heating and Cooling Heat Pump HLHK-10LNCDII-1N

Low Ambient DC Inverter Air Source Heat Pump

This series is designed for residential, commercial and light industrial heating, cooling and hot water applications. Equipped with an enhanced vapor injection compressor, full DC inverter technology and intelligent control system, the unit provides stable heating performance in low-temperature environments while maintaining high efficiency, quiet operation and reliable anti-freezing protection.

It is suitable for cold-climate heating projects, villas, apartments, hotels, schools, offices and other building applications requiring efficient year-round heating and cooling.

Key Features

Stable and energy-saving operation
Uses a dedicated EVI compressor for stable performance, high efficiency and improved heating output in low ambient temperatures.

Wide operating temperature range
Designed for operation in outdoor ambient temperatures from -35°C to 53°C, suitable for both cold-climate heating and high-temperature cooling conditions.

Full DC inverter technology
The inverter system adjusts output according to real-time demand, helping reduce energy consumption and improve comfort.

Intelligent defrosting control
Smart defrosting technology reduces unnecessary defrost cycles and helps maintain stable heating performance in winter.

High-efficiency heat exchanger
The finned-tube air-side heat exchanger improves refrigerant flow and heat transfer efficiency.

Reliable anti-freezing protection
The water-side heat exchanger and multiple anti-freezing protection designs help improve system safety in cold climates.

Quiet operation
Low-noise fan and drive technology provide quieter operation for residential and commercial applications.

Remote intelligent control
Smart control system makes operation easier and allows more convenient system management.

Introduction
FAQ
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Question1:What is the positioning and main application of DEMAX PRO series air source heat pump?

Answer:The PRO series is our all-round flagship heating & cooling heat pump. It is specially designed for residential villas, apartments, commercial offices, shopping malls, schools and other buildings, providing stable heating in winter and efficient cooling in summer all year round. It perfectly matches hydronic terminal equipment such as underfloor heating, radiators and fan coil units, and is suitable for global projects with both heating and cooling demands.

Question 2:What is the extreme operating temperature of the PRO series? Can it work normally in severe cold and high temperature environments?

Answer:Absolutely reliable. The unit can operate stably for heating at -35°C and perform cooling normally at up to 43°C. Equipped with dual-channel enhanced vapor injection technology, its low-temperature heating performance is improved by 30%, which fully adapts to complex and extreme climate zones around the world.

Question 3:How noisy is the PRO series unit? Will it affect the living and working environment?

Answer:We adopt an eightfold noise reduction design covering structure, fan, compressor and airflow optimization. The minimum noise is as low as 35 dB(A) (tested in professional sound laboratory). The overall noise of all models is well controlled, meeting the quiet requirements of home, hotel and office scenarios, and will not cause noise disturbance.

Question 4:What core technologies does the PRO series adopt to ensure high efficiency and energy saving?

Answer:It is equipped with full DC inverter technology, which realizes precise capacity adjustment, fast response and low power consumption. Combined with intelligent defrosting algorithm, it only activates defrosting when frost accumulates, reducing unnecessary energy loss. Meanwhile, the overall energy efficiency reaches the first-class standard, effectively helping users cut long-term operating costs.

Question 5:What refrigerant does the PRO series use? Are the products internationally certified?

Answer:The PRO series uses R410A refrigerant with stable performance, safety and environmental compliance. Our whole factory and products have passed ISO9001, ISO14001, CE, SGS, TUV, Keymark and other international authoritative certifications, and the laboratory is CNAS accredited, which fully meets the access standards of European, Southeast Asian and other overseas markets.

Question 6:What are the advantages of the PRO series compared with ordinary heat pumps?

Answer:1. All-in-one heating and cooling, one unit meets annual comfort demands; 2. Strong low-temperature resistance and wide operating range; 3. Ultra-quiet operation with professional mute design; 4. Electronic anti-freezing protection system to prevent damage in low temperature and extend service life; 5. Mature full DC inverter system with more stable operation and lower failure rate.

Question 7:Can the PRO series be remotely controlled? What about after-sales and technical support for overseas orders?

Answer:The PRO series supports intelligent remote monitoring & control, facilitating centralized management for projects. We have a professional global service team, providing one-stop services including pre-sales solution design, installation guidance, commissioning support and full-cycle after-sales maintenance. Our products are sold to more than 120 countries with 1600+ global partners, and the commercial project reorder rate is as high as 95%.

Question 8:What are the power specifications and models of the PRO series? Can it support customized project matching?

Answer:The series covers multiple models such as HLHK-3LNCDI-1N to HLHK-15LNCDII-1N. Small power models adopt 220V/50Hz power supply, and large power commercial models adopt 380V/50Hz power supply. We support flexible selection and combined collocation according to project area, water system and load demand, to meet the needs of single-family houses, multi-storey buildings and large commercial projects.