Air-Cooled Screw Chiller

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Website: http://industrialchiller-en.com/1-4-air-cooled-screw-chiller.html

Industrial chiller with semi-hermetic screw compressor

• Cooling capacity: 30 ton to 600 ton
• Refrigerant: R22/R407C
• Power source: 3Ph 380V~415V 50Hz/60Hz
• Compressor: semi-hermetic screw compressor (brand options: Bitzer, Hanbell, Refcomp, etc.)
• Control system: PLC touch screen
• Chilled water temperature range: 5°C to 35°C
• Temperature control accuracy: ±1°C to 2°C
• Ambient temperature: -35°C to 40°C
• Min. dimensions (L×W×H): 2530×1700×1960mm

Features

• No cooling water circuit is required, and no cooling tower, pumps, or water treatment equipment are required. This reduces installation space and costs, making it suitable for areas with limited or poor water quality. Its modular structure enables it to be delivered as a complete unit, with on-site installation requiring only power and chilled water connections, reducing commissioning time by over 50%.
• The air-cooled screw chiller is designed to operate reliably in ambient temperatures between -10 °C and 35 °C. For specialized applications, it can be configured for low-temperature environments down to -35 °C or for high-temperature conditions up to 55 °C.
• Equipped with a third-generation industrial twin screw compressor featuring a 5:6 rotor profile. Capacity can be adjusted from 0% to 100%, either in stages or steplessly, reducing power consumption. Multi-unit intelligent control rotates operation between units according to load demand, extending service life.
• With no cooling water system, there’s no need to deal with scale or algae, lowering annual maintenance costs by about 40%. The screw compressor is designed for up to 100,000 hours of operation, while self-lubricating fan bearings extend maintenance intervals to 8,000 hours.
• Supports refrigerants such as R407C, R134A, and R513A. Noise reduction measures include low-speed fans, silencing fins, and insulated covers.

Typical Applications

• In city centers, especially where rooftop space is limited, air-cooled screw chillers are ideal for medium-sized offices, hotels, or shopping malls. In hospitals, laboratories, and schools, they also avoid the fogging and hygiene issues associated with cooling towers.
• In manufacturing, they can maintain stable injection mold temperatures (approximately ±1°C) or ensure printing presses operate normally without causing problems due to high temperatures. Food processors often use them to pre-cool storage rooms to 5-10°C or maintain low temperatures in meat production lines, all without the risk of water contamination associated with traditional systems.
• Small data centers and 5G base stations often choose these types of screw chillers because they are easy to maintain and can be deployed in a decentralized manner. They are also a good backup option for sites that rely on water-cooled chillers, allowing them to step in if water supply problems cause servers to overheat.
• Industrial parks and logistics centers use distributed air-cooled screw chillers to meet fluctuating cooling needs. For temporary events such as trade shows or sporting events, these units can be quickly installed and removed without the need for extensive infrastructure construction.
• In water-scarce regions, such as the Middle East or parts of Africa, air-cooled screw chillers can provide stable cooling year-round without consuming precious water resources.

Technical Specifications

Model(HTS-***)				40A	50A	60A	80A	90A	100A	110A	135A	150A	170A	80AD	100AD	120AD	160AD	180AD	200AD	220AD	270AD	300AD	340AD
Nominal cooling capacity		7℃	kcal/h	89870	118078	126850	169764	200122	215860	235554	275716	336260	350192	179740	236156	253700	339528	400244	431720	471108	551432	672520	700384
			kW	104.5	137.3	147.5	197.4	232.7	257	273.9	320.6	391	407.2	209	274.6	295	394.8	465.4	502	547.8	641.2	782	814.4
		12℃	kcal/h	108360	142330	152822	204508	241144	239720	283714	332132	404200	421830	216720	284660	305644	409016	482288	519440	567428	664264	808400	843660
			kW	126	165.5	177.7	237.8	280.4	302	329.9	386.2	470	490.5	257	331	355.4	475.6	560.8	604	659.8	772.4	940	981
Input power			kW	38.7	47.6	53.3	69.8	78.3	83.7	90.6	109.4	129.8	133	76.6	95.2	106.6	137.6	156.6	167.4	181.2	218.8	259	266
Power source			3PH 380~415V 50HZ/60HZ
Refrigerant	Type		R22/R407C
	Charge		kg	28	35	42	52	60	65	70	84	98	105	28×2	35×2	42x2	52×2	60x2	65×2	70×2	84×2	98×2	105x2
	Control		Thermostatic expansion valve
Compressor	Type		Semi-hermetic screw compressor
	Power		kW	35.1	44	48.5	63.4	71.9	76.5	83.4	99.8	119	122.2	35.7*2	44*2	48.5*2	63.4*2	71.9*2	76.5*2	83.4*2	99.8*2	119*2	122.2*2
	Start mode		Y-△
	Capacity control		%	0-25-50-75-100
Evaporator	Type		Shell and tube evaporator / SS plate heat exchanger
	Chilled water volume (7℃)		m³/h	18	23.6	25.7	34.4	40.5	43.1	46.4	55	67.3	69.5	35.6	46.5	50.8	68	80	86.3	92.8	110.6	134.5	139
	Water pressure drop		kPa	32	35	38	42	45	42	43	43	41	41	45	43	43	41	42	45	45	42	46	46
	Pipe connection		inch	3	3	3	3	3	4	4	4	5	5	3	4	4	5	6	6	6	6	8	8
Condenser	Type		Air cooled type high efficiency finned copper tube
Fan	Type		High-flow low-noise axial fan
	Power		kW	0.6*6	0.6*6	0.8*6	0.8*8	0.8*8	0.9*8	0.9*8	0.9*8	0.9*12	0.9*12	0.8*8	0.9*8	0.8*12	0.9*12	0.8*16	0.9*16	0.9*16	0.8*24	0.9*24	0.9*24
	Air volume		m³/h	53520	53520	74520	99360	99360	120960	120960	149040	181440	181440	99360	120960	149040	181440	198720	241920	241920	298080	362880	362880
Safety devices			Compressor internal protection
			Overcurrent protection
			High/low pressure protection
			Over temperature protection
			Flow protection
			Phase sequence/phase loss protection
			Low coolant level protection
			Anti-freeze protection
			Discharge overheat protection
Dimensions	Length		mm	2530	2650	2950	3310	4000	4300	4300	5650	5980	5980	4000	4300	5650	5980	8000	8600	8600	11300	11960	11960
	Width		mm	1700	1800	1800	1800	2000	2000	2000	2000	2000	2000	1800	2000	2000	2000	1800	2000	2000	2000	2000	2000
	Height		mm	1960	2060	2160	2200	2050	2170	2170	2070	2170	2170	2050	2170	2070	2170	2050	2170	2170	2070	2170	2170
Net weight			kg	1300	1600	1900	2350	2550	2700	2800	2950	3100	3200	2500	2950	3350	4100	4350	4550	4750	5200	5500	5700
Running weight			kg	1450	1750	2100	2550	2800	2950	3050	3250	3400	3500	2800	3250	3750	4500	4850	5050	5250	5800	6100	6300

The above specifications are based on the following design conditions:

• Chilled water inlet/outlet temperature: 12 °C / 7 °C
• Cooling air inlet/outlet temperature: 35 °C / 43 °C

Models larger than HTS-150AD adopt a modular design.

Note: The cooling capacity of units using R407C will be approximately 5% lower than those using R22. Optional refrigerants: R407C / R134a.

We reserve the right to modify the specifications without further notice

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