Ultra-Low Temperature Air Energy Industrial Modular Air Cooled Water Chiller and Heat Pump Air Conditioner

• After-sales Service: Overseas After-Sales Department
• Warranty: 5years
• Type: Chiller
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DCT-451
• Air Tube Material: Galvanized Sheet
• Corrosion Durability: Ultrahigh
• Operating Voltage: 380/400 VAC
• Noise Level: Ultra Low
• Application Fields: Mechanical Engineering
• Mounting: Floor Standing
• Lifetime: >20 years
• Certification: ISO, CE, CCC
• Condition: New
• Model: Rlsfwm68
• Cooling Capacity: 68kw
• Cooling Inpurt Power: 21.1kw
• Running Currentq: 41.2A
• Heating Capacity: 70kw
• Heating Power: 22.1kw
• Compressor Type: Hermetic Scroll Type
• Compressor Quantity: 2
• Start Mode: Direct Start
• Refrigerant Type: R410A
• Evaporator Type: Shell-Tube
• Evaporator Pressure Drop: 70kpa
• Main Water Pipe Connection Size: DN50
• Water Flow: 11.7m3/H
• Dimension: 2110*1080*1870mm
• Transport Package: Naked
• Specification: 4200*2000*2000mm
• Trademark: DECENT
• Origin: China
• HS Code: 8418692090
• Production Capacity: 10000 Sets/ Year
• Package Size: 2000.00cm * 4000.00cm * 6000.00cm
• Package Gross Weight: 6000.000kg
• Lead Time: 10 days (1 - 5 Sets) ; 20 days (6 - 15 Sets) ; 30 days (16 - 20 Sets) ; To be negotiated ( > 20 Sets)

Product Description

Ultra-low Temperature Air Energy Industrial Modular Air Cooled Water Chiller and Heat Pump

The modular air cooled chiller and heat pump is designed for cooling and heating operations in large commercial and industrial buildings. The chiller and heat pumps will often be installed in malls, hotels, hospitals,and office buildings. The machine set can be installed on the roofs balconies,courtyards,and other suitable outdoor positions. The equipment does not need to be installed in a specially built water chiller machine room.
Advantage of product:
1. Easy to install and save space. 
2. 100% heat recovery is for optional.
3. Modular design. Each cooling system operates independently of the others.
4. Equipment can be fully assembled on site. Standard modules are light weight and take up little space.
5. In accordance with the requirements and needs for cooling / heating the client, we create various combinations of modules.
6. In the process of starting the operation of the equipment, the alternate start of the compressors is carried out using a computer, which reduces the current impact on the power supply network.

Product			Air cooed water chiller and heat pump- Scroll compressor
Type			Modular
Model			RLSFWM68	RLSFWM90	RLSFWM136	RLSFWM204	RLSFWM272	RLSFWM340	RLSFWM408	RLSFWM476
Cooling capacity		kW	68	86	136	204	272	340	408	476
Cooling inpurt power		kW	21.1	16	42.2	63.2	84.3	105.4	126.5	147.6
Running current		A	41.2	17.4	82.4	123.6	164.8	206	247.2	288.4
Heating capacity		kW	70	92.4	140	140	140	140	140	140
Heating power		kW	22.1	15.8	44.1	66.2	88.2	110.3	132.4	154.4
Running current		A	39.5	24	79	118.5	158	197.5	237	276.5
Max. running current		A	48.2	71	96.4	144.6	192.8	241	289.2	337.4
Power supply			380v/ 3ph / 50hz
Compressor	Type		Hermetic scroll type
	Quantity		2	2	4	6	8	10	12	14
	Start mode		Direct start
	Regrigerant	Type	R410a
		Charge (kg)	11.5x2	12*2	11.5x4	11.5x6	11.5x8	11.5x10	11.5x12	11.5x14
		Control	EXV
Evaporator	Type		Shell-tube
	Pressure drop	kPa	70
	Main water pipe connection size		DN50	DN65	DN50*2	DN50*3	DN50*4	DN50*5	DN50*6	DN50*7
	Water flow	m3/h	11.7	13.4	23.4	35.1	46.8	58.5	70.2	81.9
Dimension	L	mm	2110	2370	2110	2110	2110	2110	2110	2110
	W	mm	1080	1190	2160	3240	4320	5400	6480	7560
	H	mm	1870	2270	1870	1870	1870	1870	1870	1870
Net weight		kg	700	900	1400	2100	2800	3500	4200	4900
Operation weight		kg	760	980	1520	2280	3040	3800	4560	5320
Noise		dB(A)	73	73	73	73	74	74

 

The Difference Between Ultra-low Temperature Air Energy Heat Pump and Ordinary Air Energy Heat Pump

1. The operating conditions of the two are different
   We all know that the working principle of the air energy heat pump is to convert the heat in the air into the available high heat energy through the compressor, and then exchange it with the water system to provide hot water, heating, cooling, drying and other purposes. The temperature environment in which the ordinary air source heat pump operates is preferably within minus 10 ºC. If it operates at minus 10 to 25 ºC, it may appear:
2. Compressor is prone to failureThe temperature of the exhaust gas rises rapidly, and the overheating of the working medium is too high. In the case of overheating of the working medium, the thermal conductivity of the working medium in the condenser decreases sharply, and at the same time, the temperature of the lubricating oil increases and the viscosity decreases, which affects the normal lubrication of the compressor.
3. The unit cannot defrostIn frequent rain and snow weather and low temperature, the defrosting ability of the unit is easily weakened. Because the air intake of the unit is too small, the density of the air that can be inhaled is reduced. With the accumulation of time, the thickness of the frost layer is getting higher and higher. Therefore, the unit will reduce the circulation of the refrigerant due to the decrease in the air conversion capacity, and the overall heating capacity will decrease.

1. Ultra-low Temperature air Energy Operation Technology
   Air energy heat pump manufacturers have their own ultra-low temperature technology. Since the air energy heat pump host is generally installed outdoors, the phenomenon of frost will frequently occur in rainy and snowy weather. The ultra-low temperature air energy heat pump host can intelligently judge the defrosting needs, and intelligently judge whether to defrost according to the operating conditions of the unit (running time, exhaust temperature, etc.), combined with the ambient temperature and frost thickness. Defrost with frost and no defrost without frost, greatly extending the defrosting cycle, shortening the defrosting time by 20%, and ensuring the efficient operation of the unit
2. Jet Enthalpy Technology Because the heating efficiency of the air-energy heat pump in extremely cold weather will be greatly attenuated, resulting in an unsatisfactory heating effect.The ultra-low temperature air energy heat pump uses the jet enthalpy increase technology to create a second suction port on the scroll, and through the second suction circuit, the refrigerant flow is increased, and the circulation volume of the unit is increased during cooling.Compared with the general unit, the cooling capacity is increased by 10%, which greatly improves the refrigerant circulation system, makes full use of the refrigerant flow and utilization rate in the compressor, and improves the stability of the system operation and the heating efficiency.
3. Shell and Tube Heat Exchanger,Ordinary air can use plate heat exchanger, which is easy to scale and block the flow passage. Lowtemperature air can use copper tube with internal thread and external fins. Water inside the tube and fluorine outside the tube. The heat exchange area is large and the heat exchange efficiency is high.