Premium Ultra-Low Temperature Heat Pump Water Heater System

• Customization: Available
• After-sales Service: Engineers Available to Service 24/7 Online
• Warranty: 18 months
• Model NO.: SJK-12G/IIRSDa
• Type: Air-Cooled
• Cooling Method: Air-cooled
• Unit Structure: Integral
• Selected Voltage: 220V/50HZ
• Compressor Number: 1
• Noise Level: Ultra Quiet
• Application Fields: Pharmaceutical
• Application Machine: Precision Machine Tool
• Certification: ISO, CE, CQC
• Condition: New
• Heat Source Type: Air Source Heat Pump
• Working Medium: R410A/R32
• Power Supply: 380V/3P/50Hz
• Protection Level: IPX4
• Ambient Temp: '-30~45ºC
• Refrigerant: R410A/R32
• Water Pressure Drop: ≤80
• Guarantee Period: 18 Months
• Model: SJK-12G/IIRSDa
• Max.Input Power: 15 kW
• Max.Input Current: 28 A
• Transport Package: Wooden Cases
• Specification: 1035*1070*1740
• Trademark: SUJING
• Origin: Jiangsu, China (Mainland)
• HS Code: 8418699090
• Production Capacity: 2400 Pieces Per Year

Product Description

Sujing Customizable Ultra-Low Ambient Temp Air Source Heat Pump

As one of China's earliest professional manufacturers of purification air conditioners and HVAC equipment, Sujing specializes in R&D, production, sales, and installation. We operate two core segments: air conditioning systems and heat pump systems. The heat pump line includes CO2 heat pumps, cascade variable frequency units, air source (chilled water) units, water-cooled chillers, industrial screw units, air-cooled modules, and drying units.

Our products are widely applied in industry, agriculture, commerce, transportation, and aerospace, as well as in specialized fields like green heating, coal mines, oil fields, livestock farming, agricultural drying, and biomedicine. They are exported to over 30 countries, including the U.S., Finland, the Netherlands, Canada, and Brazil.

Product Description

Sujing Ultra-Low Ambient Temp Air Source Heat Pump Water Heater

SJK-RSD Ultra-low Temperature Series
updated in 2025-11-17

Performance characteristics

· Green Energy Saving: Power saving and environmental protection
It absorbs heat from the air and heats under the drive of electric energy,which is more energy-saving.It adopts the new environmentally friendly refrigerant R410A,which has low GWP,zero ODP,and is green and pollution-free.

· Safe and Reliable: Durable and Easy to Maintain
It does not directly contact the heating medium,fundamentally eliminating safety hazards such as flammability,dryness,and leakage,and has a service life of more than 15 years.

· High Temp Water Outlet: Worry-free All Year Round
The air source heat pump has a maximum water outlet of 60ºC,which is not affected by the ambient weather and can produce hot water in rainy days.

· Intelligent Control: All-weather Constant Temp Water Supply
According to parameters such as ambient temperature,water tank water temperature and liquid level,the water temperature is fully automatically controlled by intelligent constant temperature.

 

Product Parameters

Model			SJK-12G/IIRSDa
Nominal temperature conditions	Heating capacity	kW	45.0
	Water output	m³/h	0.97
	Input power	kW	10.2
	COP	W/W	4.41
Nominal operating conditions	Heating capacity	kW	26.2
	Water output	m³/h	0.49
	Input power	kW	9.9
	COP	W/W	2.65
Power supply specifications		380V/3N~50Hz
Maximum input power		kW	15
Maximum input current		A	28
Anti-electric shock protection type			Level 1
Protection level			IPX4
Ambient temperature		ºC	-30~45
Refrigerant			R410A/R32
Air heat exchanger		High-efficiency internal thread copper tube fin heat exchanger
Water heat exchanger			Double pipes heat exchanger
Water system	Water flow	m³/h	7.5
	Connection pipe		DN40
	Water pressure drop	kPa	≤80
Dimensions (length * width * height)		mm	1035*1070*1740
Noise		dB(A)	≤65
Weight		kg	295

Remarks:

1) Nominal temperature conditions: dry bulb temperature 20ºC, wet bulb temperature 15ºC, water inlet temperature 15ºC,water outlet temperature 55ºC.
2) Nominal conditions: dry bulb temperature 7ºC, wet bulb temperature 6ºC,water inlet temperature 9ºC,water outlet temperature 55ºC.
3) Specifications are subject to change with product improvements, please refer to the actual product.
4) Customization is available according to the customer's actual requirements.

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Company Profile

Jiangsu Sujing Group Co., Ltd

Dedicated to overall solutions for equipment manufacturing in the field of dehumidification and environmental protection.
History: Established in 1969, state-owned high-tech company  
Size: 130,000 square meters  
Employees: 1200+

Chiller Performance Testing Center

The testing center is equipped to evaluate both water chillers and water/ground source heat pumps, simulating year-round operating conditions. It supports single-unit testing up to 1200 kW, ensuring reliable performance validation under real-world scenarios.

100HP Environmental Simulation Laboratory

This state-of-the-art laboratory is equipped to test chillers & heaters, direct expansion units, combined air conditioning units, and fan coil units-with dedicated capabilities for explosion-proof equipment. It can simulate year-round operating conditions and supports single-unit testing up to 300 kW, ensuring comprehensive and reliable performance validation.

Environmental Simulation Enthalpy Difference Laboratory

This laboratory can simulate extreme environments with temperatures ranging from -30°C to 50°C. It tests dehumidifier performance under various climate conditions, while real-time monitoring of operating parameters is conducted through a central control room. This ensures a solid foundation for the stable and reliable operation of dehumidifiers.

Rotary Dehumidifier Testing Center

Equipped with advanced sensors, our testing center continuously monitors key operating parameters to accurately assess the dehumidifier's performance and operating status. Real-time test data can be accessed anytime via mobile devices, offering valuable insights for fault diagnosis and condition evaluation-driving smarter maintenance and continuous product optimization.

FAQ

1.Who are we?
Established in 1970 as a state-owned enterprise, Jiangsu Sujing Group Co., Ltd. is a National Innovation Pilot Enterprise and National Key High-Tech Enterprise dedicated to advancing technological innovation, intelligent equipment manufacturing, and energy-saving integrated solutions in the clean environmental protection sector. With a steadfast commitment to sustainable development, we drive high-quality growth through cutting-edge technologies and industry leadership.

2.How can we guarantee quality?
A: Always a pre-production sample before mass production; Always final Inspection before shipment.

3.Q3. What can you buy from us?
A: Dehumidifiers,Chillers & AC Terminal,Heat Pump
 

4.Q4. Why should you buy from us not from other suppliers?
A:Innovation Ecosystem: Built a multidimensional R&D platform-"Institute + Research Station + Engineering Center", achieving breakthroughs in green technology R&D, patent applications, and industry standards.

Cutting-Edge Manufacturing: Specialize in heat pumps, industrial air conditioners, dehumidifiers, chillers, fan coil units, and customized HVAC solutions.

Global Impact: Products serve new-generation IT, renewable energy, electronics, and commercial/industrial sectors.
 

5.Q5. What services can we provide?
A: Accepted Delivery Terms: FOB,,CIF,EXW;
Accepted Payment Currency: USD, EUR,CNY;
Accepted Payment Type: T/T,L/C
Language Spoken: English, Chinese;