Cold Climate Heat Pump with Superior Performance at -30 Low Temperatures

Product Description

Product Description

TECHNICAL ADVANTAGES

Dual Functionality: Heating and Cooling capabilities.
Heating Capacity: 16–38kW.
Advanced Compression Technology: DC inverter rotary EVI compressor
Wide Operating Temperature Range: Heating -30℃ to 28℃, Cooling 15℃ to 50℃
Cold Climate Resilience: Stable operation in -30℃ environment.
Smart Controls: Wi-Fi enabled with app for convenient remote control.
Enhanced Freeze Protection: Features 8 layers of anti-freeze design.
Wide Voltage Operation: Ultra-wide voltage operating range from 285V to 460V.
Quiet Operation: Designed for low noise levels.
Smart Defrost Technology: Frost-free operation.
Eco-Friendly: Uses R32 refrigerant.
Maximum heating water outlet temperature: 55℃.
Minimum cooling water outlet temperature: 5℃.

Heat Pump Heating and Cooling System

The heat pump is an all-in-one home solution.

In winter, it provides heating for underfloor systems, radiators, and central air conditioning.

In summer, it cools fan coils for a refreshing environment.

Efficient, energy-saving, and smart, it keeps your home comfortable all year round.

Wider Ambient Temperature Operating Range

Hien Air Source Heat Pumps operate stably within 285–460 V, designed to ensure normal use even in regions with significant voltage fluctuations.

Heating -30℃ to 28℃; Cooling 15℃ to 50℃.

Maximum heating water outlet temperature: 55℃. Minimum cooling water outlet temperature: 5℃

MORE THAN 70000 PROJECTS COMPLETED SO FAR; MORE THAN 6.5 MILLION PRODUCTS DELIVERED.

HIGHLIGHT  PROJECTS
The 2008 Shanghai World Expo.
Universiade SHENZHEN 2011
The 2011 Universiade in Shenzhen.
BOAO FORUM FOR ASIA
The 2013 Boao Summit for Asia in Hainan.
The artificial island hot water project of the Hong Kong–Zhuhai–Macao Bridge in 2019.
2016 the hot water reconstruction project of Qingdao port.
BEIJING 2022
The 2022 Beijing Winter Olympic Games & Paralympic Games.
G20 2016 China
2016 the G20 Hangzhou Summit.
19th Asian Games Hangzhou 2022
2023 the Asian Games in Hangzhou

Specification

Name		DLRK-16 II BA/A1	DLRK-18 II BA/A1	DLRK-20 II BA/A1	DLRK-22 II BA/A1	DLRK-25 II BA/A1
Power Supply		380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz
Anti-Electric Shock Rate		Class I	Class I	Class I	Class I	Class I
Ingress Protection Rating		IPX4	IPX4	IPX4	IPX4	IPX4
Condition 1	Rated Heating Capacity	6200W~16500W	8100W~18500W	8300W~20500W	8800W~22500W	12000W~25000W
Unit Type		Floor Heating Type (Outlet Water Temp.35℃)
Condition 2	Rated Heating Capacity	12200W	14000W	15300W	16200W	18800W
	Rated Heating Power Input	4080W	5000W	5460W	5780W	6550W
	Heating COP	2.99	2.80	2.80	2.80	2.87
Condition 4	Low Temp. Heating Capacity	10000W	11400W	12500W	13400W	15800W
	Low Ambient Heating Power Input	3890W	4650W	5100W	5470W	6300W
	Low Ambient COP	2.57	2.45	2.45	2.45	2.51
HSPF		4.10	3.80	3.80	3.80	4.00
Unit Type		Fan Coil Unit Type(Outlet Water Temp.41℃)
Condition 2	Rated Heating Capacity	12200W	14000W	15300W	16200W	18800W
	Rated Heating Power Input	4480W	5380W	5880W	6350W	7200W
	Heating COP	2.72	2.60	2.60	2.55	2.61
Condition 4	Low Temp. Heating Capacity	10000W	11400W	12500W	13400W	15800W
	Low Ambient Heating Power Input	4280W	5060W	5550W	5950W	6950W
	Low Ambient COP	2.34	2.25	2.25	2.25	2.27
HSPF		3.55	3.40	3.40	3.40	3.50
APF		3.60	3.45	3.45	3.45	3.55
	Unit Type	Radiator Type(Outlet Water Temp.50℃)
Condition 2	Rated Heating Capacity	12200W	14000W	15300W	16200W	18800W
	Rated Heating Power Input	5140W	6360W	6950W	7360W	8300W
	Heating COP	2.37	2.20	2.20	2.20	2.27
Condition 4	Low Temp. Heating Capacity	10000W	11400W	12500W	13400W	15800W
	Low Ambient Heating Power Input	4850W	5700W	6250W	6700W	8000W
	Low Ambient COP	2.06	2.00	2.00	2.00	1.98
HSPF		2.95	2.80	2.80	2.80	2.85
Rated Water Flow		2.15m³/h	2.58m³/h	3.03m³/h	3.27m³/h	3.78m³/h
Condition 3	Rated Cooling Capacity	12500W	15000W	17600W	19000W	22000W
	Power Input	4170W	5000W	6060W	6230W	7100W
	EER	3.00	3.00	2.90	3.05	3.10
CSPF		4.60	4.60	4.85	4.80	5.02
Max Power Input		6600W	7400W	8200W	9000W	10000W
Max Running Current		13A	14A	16A	17A	19A
Water Pressure Drop		20kpa	42kpa	22kpa	20kpa	30kpa
Max Pressure on High/Low Pressure Side		4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa
Allowable Discharge/Sucion Pressure		4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa
Max Pressure on Evaporator		4.3Mpa	4.3Mpa	4.3Mpa	4.3Mpa	4.3Mpa
Water Pipe Connection		DN25/1" Female Thread			DN32/1¼ " Female Thread
Noise		53dB(A)	52dB(A)	54dB(A)	56dB(A)	58dB(A)
Refrigerant/Charge		R32/2.5kg	R32/2.7kg	R32/3.0kg	R32/3.4kg	R32/3.6kg
Dimension (LxWxH)(mm)		1000x410x1355	1000x410x1355	1000x410x1355	1000x410x1355	1100x440x1520
Net Weight		109kg	111kg	119kg	123kg	153kg

Heat Pump Testing Conditions

 Condition 1:Outdoor Air Temp. : DB 7°C / WB 6°C ,Outlet Water Temp.45℃        
 Condition 2:Outdoor Air Temp. : DB -12°C / WB -13.5°C         
 Condition 3:Outdoor Air Temp. : DB 35°C /-,Outlet Water Temp.7℃        
 Condition 4:Outdoor Air Temp. : DB -20°C /-        

Name		DLRK-28 II BA/A1	DLRK-31 II BA/A1	DLRK-33 II BA/A1	DLRK-38IIBA/A1	DLRK-45 II BA/A1
Power Supply		380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz	380V 3N~ 50Hz
Anti-Electric Shock Rate		Class I	Class I	Class I	Class I	Class I
Ingress Protection Rating		IPX4	IPX4	IPX4	IPX4	IPX4
Condition 1	Rated Heating Capacity	12500W~28000W	13000W~31000W	13500W~33000W	15000W~38000W	17200W~45000W
Unit Type		Floor Heating Type(Outlet Water Temp.35℃)
Condition 2	Rated Heating Capacity	21000W	23000W	24600W	28200W	33000W
	Rated Heating Power Input	7500W	7900W	8800W	9700W	11500W
	Heating COP	2.80	2.91	2.80	2.91	2.87
Condition 4	Low Temp. Heating Capacity	17800W	19200W	20600W	23500W	27700W
	Low Ambient Heating Power Input	7250W	7600W	8400W	9300W	10950W
	Low Ambient COP	2.46	2.53	2.45	2.53	2.53
HSPF		3.90	3.90	3.80	3.80	3.85
Unit Type		Fan Coil Unit Type(Outlet Water Temp.41℃)
Condition 2	Rated Heating Capacity	21000W	23000W	24600W	28200W	33000W
	Rated Heating Power Input	8250W	8700W	9600W	10700W	12530W
	Heating COP	2.55	2.64	2.56	2.64	2.63
Condition 4	Low Temp. Heating Capacity	17800W	19200W	20600W	23500W	27700W
	Low Ambient Heating Power Input	8000W	8300W	9100W	10200W	11930W
	Low Ambient COP	2.23	2.31	2.26	2.30	2.32
HSPF		3.40	3.50	3.40	3.40	3.45
APF		3.45	3.55	3.45	3.45	3.50
	Unit Type	Radiator Type(Outlet Water Temp.50℃)
Condition 2	Rated Heating Capacity	21000W	23000W	24600W	28200W	33000W
	Rated Heating Power Input	9500W	9900W	11000W	12100W	14270W
	Heating COP	2.21	2.32	2.24	2.33	2.31
Condition 4	Low Temp. Heating Capacity	17800W	19200W	20600W	23500W	27700W
	Low Ambient Heating Power Input	9200W	9400W	10400W	11400W	13520W
	Low Ambient COP	1.93	2.04	1.98	2.06	2.05
HSPF		2.80	2.95	2.85	2.85	2.90
Rated Water Flow		4.13m³/h	4.47m³/h	4.82m³/h	5.33m³/h	6.36m³/h
Condition 3	Rated Cooling Capacity	24000W	26000W	28000W	31000W	37000W
	Power Input	8200W	8600W	10000W	11000W	12750W
	EER	2.93	3.02	2.80	2.82	2.90
CSPF		4.92	4.65	4.50	4.52	4.70
Max Power Input		11200W	12500W	13500W	15800W	18700W
Max Running Current		21.5A	24A	26A	30A	32A
Water Pressure Drop		35kpa	30kpa	35kpa	35kpa	36kpa
Max Pressure on High/Low Pressure Side		4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa	4.3/4.3Mpa
Allowable Discharge/Sucion Pressure		4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa	4.3/1.2Mpa
Max Pressure on Evaporator		4.3Mpa	4.3Mpa	4.3Mpa	4.3Mpa	4.3Mpa
Water Pipe Connection		DN32/1¼ " Female Thread
Noise		58.5dB(A)	59dB(A)	59.5dB(A)	60dB(A)	60.5dB(A)
Refrigerant/Charge		R32/3.6kg	R32/4.0kg	R32/4.0kg	R32/4.8kg	R32/6.5kg
Dimension (LxWxH)(mm)		1100x440x1520	1100x440x1520	1100x440x1520	1200x430x1550	1540x570x2100
Net Weight		153kg	162kg	162kg	182kg	307kg

Exhibition

Global Presence with Hien From Beijing ISH to Milan MCE, from Frankfurt ISH to Birmingham Installer Show

Hien is redefining global standards in sustainable climate control — one heat pump at a time. At the world's top HVAC exhibitions, our eye-catching booths showcase cutting-edge heat pump technologies and a track record of over 70,000 successful solutions delivered worldwide. We're not just attending — we're driving the transformation toward energy-efficient, low-carbon living.

Meet us at:

ISH Germany • Hall 12.0 E29 • 156 m²
ISH China & CIHE • E4-03 • 400 m²
MCE Milan • Hall 3 M50 • 60 m²
Installer Show Birmingham • 2024 & 2025 • Two booths
Warsaw HVAC Expo • E2.16 • 69 m²
Heat Pump Technologies Milan • C22 • 32 m²

Company Profile

ABOUT HIEN

Founded in 1992, Hien firstly started as an electronic component manufacturer. With a registered capital of 300 million RMB, Hien entered the air source industry in 2000. It is a leading enterprise of air source heat pumps in the area of product R & D, production, sales, and after-sales service. Hien owns one of the largest production bases of heat pumps in China, as well as the CANS-certified state-level comprehensive laboratory.

Production Experience	Total foorspace	Cooperated suppliers	ODM services	R&D Team	Transaction Amount
30+years	(51,234)square meter	(5300+)	available	100+ Workers	800,000,000+

Innovation Engine Behind Hien's Heat Pump Excellence 

At Hien, our R&D team is the driving force behind breakthrough heat pump solutions. With over 130 invention patents, 106 technical experts, and 25 years of deep experience in core technologies, we turn ideas into high-performance, energy-efficient systems.

Our facilities span 5,000 m², equipped with tools valued over ¥20 million, supporting expertise in thermal power, electrical engineering, energy management, and more. Backed by two R&D centers and a national-level postdoctoral research station, we don't just follow trends — we define them.

From concept to deployment, our team customizes solutions that meet real-world demands, empowering our global partners to lead in sustainability.

FAQ

Q.Are you a trading company or manufacturer?
A: We are a heat pump manufacturer in China.We specialized in heat pump design/ manufacturing for more than 25 years.

Q.Can i ODM/ OEM and print my own logo on the products?

A: Yes, Through 25 years research and development of heat pump, hien technical team is professional and experienced to offer customized solution for OEM,ODM customer, which is one of our most competitive advantage.
If above online heat pump does not match your requirements, please do not hesitate to send message to us, we have hundreds of heat pump for optional, or customizing heat pump based on demands, it is our advantage!

Q.How do l know if your heat pump are good quality?
A: Sample order is acceptable for testing your market and checking our quality And we have strict quality control systems from raw material incoming until finished product delivery out.

Q.Do you test all the goods before delivery?
A: Yes, we have 100% test before delivery. If you need any assistance, please feel free to contact us.

Q: What certifications do your heat pump has?
A: Our heat pump have  CEcertification, MCS,ISO 14001, ISO 45001, and ISO 9001  certification.

Q: For a customized heat pump, how long is the R&D time (Research& Development time)?

A: Normally, 10~50 business days, it depends on requirements, just some modification on standard heat pump or a totally new design item.

If you are interested in this product,please fill in the below and send us,we will reply you and also send you the latest product catalog and latest quotation within 1 hour!