Low Temperature Screw Chiller

Based on Hanbell's core technology, Yuzhen has launched this Low Temperature Screw Chiller made in China. It not only maintains high efficiency at extremely low temperatures but also solves the problems of difficult maintenance and high energy consumption of traditional units through "integrated intelligent control" and "throttle technology without moving parts."

Send Inquiry

Product Description

Core Advantage 1: Temperature Control Accuracy to ±0.3℃

Yuzhen's Low Temperature Screw Chiller is equipped with a high-performance "microcomputer controller."

Extremely fast response: The calculation speed reaches microseconds (0.25ms), and it can immediately detect any change in the outlet water temperature.

Stable: With advanced PID control function, the machine can automatically adjust according to the load, keeping the water temperature fluctuation within ±0.3℃.

Operation is as simple as using a mobile phone: It comes with a high-definition touch screen, the operating status is clear at a glance, and even novices can complete the settings by clicking on the screen.

Core Advantage 2: Multiple Protection Layers

When purchasing a Low Temperature Screw Chiller, stability is paramount.

30 comprehensive protections: Whether it's compressor overheating, unstable voltage, or antifreeze protection, the unit has considered everything.

Self-checking and reminders: The machine will perform a "self-check" before starting, and will even automatically remind you when the condenser needs cleaning.

Cloud monitoring: A Modbus-RTU interface is reserved for seamless integration with building systems. It can not only manage the compressor but also link with water pumps and fans, doubling management efficiency.

Core Advantage 3: Hardcore Energy-Saving Technology

Yuzhen adopts a series of industry-leading structural designs, directly increasing the cost-effectiveness:

Semi-hermetic twin-screw compressor: The motor and compressor are integrated, resulting in extremely high transmission efficiency, and completely solving the problem of oil leakage. It has low vibration, low noise, and is very durable.

Falling film (spray type) evaporator: The refrigerant is sprayed onto the tubes like a rain curtain, resulting in excellent heat transfer. Most importantly, it requires less refrigerant, which is both environmentally friendly and cost-effective.

High-efficiency condenser: The unique guide plate design can lower the condensation temperature by about 1℃. This may seem insignificant, but the electricity saved over long-term operation is substantial. Core Advantage 4: Wear-Free "Orifice Plate" Throttling

This is also the secret to the unit's high reliability.

Many chillers have throttling valves that are prone to failure, but we use a fixed orifice plate. It has no moving parts and relies entirely on physical dynamic balance to regulate the flow rate.

Maintenance-free: Because there is no mechanical wear, it is virtually maintenance-free, and the regulation is lag-free; the refrigerant flow is precisely controlled whether at full load or partial load.

Performance and specifications of the product

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -5℃ / R22)

EMCS-		A040ALYT	A200ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	91	440	1134	978	1134
Input power	Kw	27	117	287	248	287
Full-load efficiency COP	kW/kW	3.37	3.76	3.95	3.94	3.95
Compressor model		RC2-140BF	RC2-620BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	20	96	244	211	244
Water pressure drop	kPa	17	46	75	64	75
Inlet and outlet pipe interfaces	DN	80	150	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	17	84	217	187	217
Water pressure drop	kPa	20	57	82	76	82
Inlet and outlet pipe interfaces	DN	80	150	200	200	200
oil separator		vertical secondary oil separator			horizontal primary oil separator
Dimension
A（L）	mm	2400	3050	3750	3750	3750
B（W）	mm	1100	1510	2200	2300	2300
C（H）	mm	1450	2000	2450	2300	2300
Installation size
D	mm	1820	2320	2920	2920	2920
E	mm	900	1300	1700	1700	1700
Transportation weight	kg	1800	3400	8500	8000	8500
Operating weight	kg	1850	3600	8900	8400	8900
Refrigerant filling volume	kg	55	180	450	400	450

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -5℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	182	2268	1956	2268
Input power	Kw	54	574	496	574
Full-load efficiency COP	kW/kW	3.37	3.95	3.94	3.95
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	41	489	422	489
Water pressure drop	kPa	36	76	96	97
Inlet and outlet pipe interfaces	DN	125	300	300	300
Evaporator		Falling film evaporator
Water flow rate	m3/h	35	434	374	434
Water pressure drop	kPa	37	85	104	105
Inlet and outlet pipe interfaces	DN	125	300	300	300
oil separator		vertical secondary oil separator		horizontal primary oil separator
Dimension
A（L）	mm	3400	5800	5750	5750
B（W）	mm	1550	2600	2450	2450
C（H）	mm	1600	2800	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	2050	1950	1950
Transportation weight	kg	2900	14500	14000	14500
Operating weight	kg	2980	15700	15200	15700
Refrigerant filling volume	kg	80	850	750	850

Note:

1) Operating conditions of the Low Temperature Screw Chiller

Evaporator: Inlet water temperature 0℃, outlet water temperature -5℃;

Condenser: Inlet water temperature 30℃, outlet water temperature 35℃;

2) Applicable voltage level: 3φ - 380V - 50Hz;

3) Unit conversion: 1 RT (American refrigeration ton) = 3.517 kW;

4) Water side pressure of the evaporator is 1.0 MPa, and the water side pressure of the condenser is 1.0 MPa;

5) Both the evaporator and the condenser are connected by flanges;

6) Fouling coefficient of the evaporator is designed at 0.018 m²·℃/kW;

Fouling coefficient of the condenser is designed at 0.044 m²·℃/kW;

7) The shape, size and weight of the unit may vary slightly due to product iterations. Please refer to the technical agreement when placing an order;

8) The above parameters are based on the performance software of Hanzhong 5.0.3.35 compressor. The cooling capacity may vary slightly in different versions. Please refer to the technical agreement when placing an order.

9) The coolant of the evaporator in the scheme is 30% ethylene glycol solution by volume concentration.

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -10℃ / R22)

EMCS-		A040ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	75	930	802	930
Input power	Kw	26	276	239	276
Full-load efficiency COP	kW/kW	2.88	3.37	3.36	3.37
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	17	207	179	207
Water pressure drop	kPa	14	54	50	54
Inlet and outlet pipe interfaces	DN	80	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	15	186	160	186
Water pressure drop	kPa	23	76	75	76
Inlet and outlet pipe interfaces	DN	80	200	200	200
oil separator		vertical secondary oil separator		horizontal primary oil separator
Dimension
A（L）	mm	2400	3750	3720	3750
B（W）	mm	1100	2200	2300	2300
C（H）	mm	1450	2450	2300	2300
Installation size
D	mm	1820	2920	2920	2920
E	mm	900	1700	1700	1700
Transportation weight	kg	1750	8200	7700	8200
Operating weight	kg	1800	8600	8100	8600
Refrigerant filling volume	kg	50	400	350	400

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -10℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	150	1860	1604	1860
Input power	Kw	52	552	478	552
Full-load efficiency COP	kW/kW	2.88	3.37	3.36	3.37
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	35	415	358	415
Water pressure drop	kPa	35	73	85	91
Inlet and outlet pipe interfaces	DN	100	250	250	250
Evaporator		Falling film evaporator
Water flow rate	m3/h	30	372	321	372
Water pressure drop	kPa	45	81	96	102
Inlet and outlet pipe interfaces	DN	100	250	250	250
oil separator		vertical secondary oil separator		horizontal primary oil separator
Dimension
A（L）	mm	3400	5800	5750	5750
B（W）	mm	1550	2550	2450	2450
C（H）	mm	1600	2750	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	1950	1950	1950
Transportation weight	kg	2800	14000	13500	14000
Operating weight	kg	2880	15000	14500	15000
Refrigerant filling volume	kg	70	800	700	800

Note:

1) Operating conditions of the unit

Evaporator: Inlet water temperature -5℃, outlet water temperature -10℃;

Condenser: Inlet water temperature 30℃, outlet water temperature 35℃;

2) Applicable voltage level: 3φ - 380V - 50Hz;

3) Unit conversion: 1 RT (American refrigeration ton) = 3.517 kW;

4) Water side pressure of the evaporator is 1.0 MPa, and the water side pressure of the condenser is 1.0 MPa;

5) Both the evaporator and the condenser are connected by flanges;

6) Fouling coefficient of the evaporator is designed at 0.018 m²·℃/kW;

Fouling coefficient of the condenser is designed at 0.044 m²·℃/kW;

7) The shape, size and weight of the unit may vary slightly due to product iterations. Please refer to the technical agreement when placing an order;

9) The coolant of the evaporator in the scheme is 40% ethylene glycol solution by volume concentration.

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -15℃ / R22)

EMCS-		A040ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	61	756	652	756
Input power	Kw	25	266	230	266
Full-load efficiency COP	kW/kW	2.44	2.84	2.83	2.84
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	15	176	152	176
Water pressure drop	kPa	15	46	42	46
Inlet and outlet pipe interfaces	DN	65	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	12	151	130	151
Water pressure drop	kPa	60	82	80	82
Inlet and outlet pipe interfaces	DN	65	200	200	200
oil separator		vertical secondary oil separator		horizontal primary oil separator
Dimension
A（L）	mm	2400	3720	3720	3720
B（W）	mm	1100	2200	2300	2300
C（H）	mm	1450	2450	2300	2300
Installation size
D	mm	1820	2920	2920	2920
E	mm	900	1700	1700	1700
Transportation weight	kg	1700	7500	7700	7500
Operating weight	kg	1750	7900	8100	7900
Refrigerant filling volume	kg	45	350	300	350

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -15℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	122	1512	1304	1512
Input power	Kw	50	532	460	532
Full-load efficiency COP	kW/kW	2.44	2.84	2.83	2.84
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	30	352	303	352
Water pressure drop	kPa	23	50	80	82
Inlet and outlet pipe interfaces	DN	100	250	250	250
Evaporator		Falling film evaporator
Water flow rate	m3/h	24	302	261	302
Water pressure drop	kPa	61	75	98	100
Inlet and outlet pipe interfaces	DN	100	250	250	250
oil separator		vertical secondary oil separator		horizontal primary oil separator
Dimension
A（L）	mm	3400	5800	5750	5750
B（W）	mm	1550	2500	2450	2450
C（H）	mm	1600	2750	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	1900	1900	1900
Transportation weight	kg	2800	13500	13000	13500
Operating weight	kg	2880	14500	14000	14500
Refrigerant filling volume	kg	70	800	700	800

Note:

1) Operating conditions of the unit

Evaporator: Inlet water temperature -10℃, outlet water temperature -15℃;

Condenser: Inlet water temperature 30℃, outlet water temperature 35℃;

2) Applicable voltage level: 3φ - 380V - 50Hz;

3) Unit conversion: 1 RT (American refrigeration ton) = 3.517 kW;

4) Water side pressure of the evaporator is 1.0 MPa, and the water side pressure of the condenser is 1.0 MPa;

5) Both the evaporator and the condenser are connected by flanges;

6) Fouling coefficient of the evaporator is designed at 0.018 m²·℃/kW;

Fouling coefficient of the condenser is designed at 0.044 m²·℃/kW;

7) The shape, size and weight of the unit may vary slightly due to product iterations. Please refer to the technical agreement when placing an order;

9) The coolant of the evaporator in the scheme is 40% ethylene glycol solution by volume concentration.

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -20℃ / R22)

EMCS-		A040ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	49	610	526	610
Input power	Kw	24	255	221	255
Full-load efficiency COP	kW/kW	2.04	2.39	2.38	2.39
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	13	149	128	149
Water pressure drop	kPa	11	37	36	37
Inlet and outlet pipe interfaces	DN	65	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	10	129	112	129
Water pressure drop	kPa	28	87	86	87
Inlet and outlet pipe interfaces	DN	65	200	200	200
oil separator		horizontal primary oil separator
Dimension
A（L）	mm	2400	3720	3720	3720
B（W）	mm	1100	2200	2300	2300
C（H）	mm	1450	2200	2300	2300
Installation size
D	mm	1820	2920	2920	2920
E	mm	900	1700	1700	1700
Transportation weight	kg	1700	7500	7700	7500
Operating weight	kg	1750	7900	8100	7900
Refrigerant filling volume	kg	45	350	300	350

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -20℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	98	1220	1052	1220
Input power	Kw	48	510	442	510
Full-load efficiency COP	kW/kW	2.04	2.39	2.38	2.39
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	25	298	257	298
Water pressure drop	kPa	17	43	62	66
Inlet and outlet pipe interfaces	DN	80	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	21	259	223	259
Water pressure drop	kPa	44	71	92	98
Inlet and outlet pipe interfaces	DN	80	200	200	200
oil separator		horizontal primary oil separator
Dimension
A（L）	mm	3400	5500	5750	5750
B（W）	mm	1550	2500	2450	2450
C（H）	mm	1550	2300	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	1900	1900	1900
Transportation weight	kg	2800	13000	12500	13000
Operating weight	kg	2880	14000	13500	14000
Refrigerant filling volume	kg	70	800	700	800

Note:

1) Operating conditions of the unit

Evaporator: Inlet water temperature -15℃, outlet water temperature -20℃;

Condenser: Inlet water temperature 30℃, outlet water temperature 35℃;

2) Applicable voltage level: 3φ - 380V - 50Hz;

3) Unit conversion: 1 RT (American refrigeration ton) = 3.517 kW;

4) Water side pressure of the evaporator is 1.0 MPa, and the water side pressure of the condenser is 1.0 MPa;

5) Both the evaporator and the condenser are connected by flanges;

6) Fouling coefficient of the evaporator is designed at 0.018 m²·℃/kW;

Fouling coefficient of the condenser is designed at 0.044 m²·℃/kW;

7) The shape, size and weight of the unit may vary slightly due to product iterations. Please refer to the technical agreement when placing an order;

9) The coolant of the evaporator in the scheme is 50% ethylene glycol solution by volume concentration.

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -25℃ / R22)

EMCS-		A040ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	39	488	420	488
Input power	Kw	23	244	211	244
Full-load efficiency COP	kW/kW	1.70	2.00	1.99	2.00
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	12	140	121	140
Water pressure drop	kPa	6	39	38	39
Inlet and outlet pipe interfaces	DN	65	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	8	104	89	104
Water pressure drop	kPa	40	78	77	78
Inlet and outlet pipe interfaces	DN	65	200	200	200
oil separator		horizontal primary oil separator
Dimension
A（L）	mm	2400	3720	3720	3720
B（W）	mm	1100	2200	2300	2300
C（H）	mm	1450	2200	2300	2300
Installation size
D	mm	1820	2920	2920	2920
E	mm	900	1700	1700	1700
Transportation weight	kg	1700	7500	7700	7500
Operating weight	kg	1750	7900	8100	7900
Refrigerant filling volume	kg	45	350	300	350

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -25℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	78	976	840	976
Input power	Kw	46	488	422	488
Full-load efficiency COP	kW/kW	1.70	2.00	1.99	2.00
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	24	280	241	280
Water pressure drop	kPa	19	58	59	58
Inlet and outlet pipe interfaces	DN	80	200	200	200
Evaporator		Falling film evaporator
Water flow rate	m3/h	17	208	179	208
Water pressure drop	kPa	38	86	95	96
Inlet and outlet pipe interfaces	DN	80	200	200	200
oil separator		horizontal primary oil separator
Dimension
A（L）	mm	3400	5500	5750	5750
B（W）	mm	1550	2500	2450	2450
C（H）	mm	1550	2300	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	1900	1900	1900
Transportation weight	kg	2800	13000	12500	13000
Operating weight	kg	2880	14000	13500	14000
Refrigerant filling volume	kg	70	800	700	800

Note:

1) Operating conditions of the unit

Evaporator: Inlet water temperature -20℃, outlet water temperature -25℃;

Condenser: Inlet water temperature 30℃, outlet water temperature 35℃;

2) Applicable voltage level: 3φ - 380V - 50Hz;

3) Unit conversion: 1 RT (American refrigeration ton) = 3.517 kW;

4) Water side pressure of the evaporator is 1.0 MPa, and the water side pressure of the condenser is 1.0 MPa;

5) Both the evaporator and the condenser are connected by flanges;

6) Fouling coefficient of the evaporator is designed at 0.018 m²·℃/kW;

Fouling coefficient of the condenser is designed at 0.044 m²·℃/kW;

7) The shape, size and weight of the unit may vary slightly due to product iterations. Please refer to the technical agreement when placing an order;

9) The coolant of the evaporator in the scheme is 55% ethylene glycol solution by volume concentration.

Performance Parameter Table for Low Temperature Screw Chiller Unit (Single unit / -30℃ / R22)

EMCS-		A040ALYT	A500ALYT	A450AHDT	A500AHDT
Refrigeration capacity	kW	31	386	333	386
Input power	Kw	22	234	203	234
Full-load efficiency COP	kW/kW	1.41	1.65	1.64	1.65
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser		Shell-tube type condenser
Water flow rate	m3/h	11	133	115	133
Water pressure drop	kPa	10	46	41	46
Inlet and outlet pipe interfaces	DN	65	150	150	150
Evaporator		Falling film evaporator
Water flow rate	m3/h	7	88	76	88
Water pressure drop	kPa	47	82	78	82
Inlet and outlet pipe interfaces	DN	65	150	150	150
oil separator		horizontal primary oil separator
Dimension
A（L）	mm	2400	3720	3720	3720
B（W）	mm	1100	2200	2300	2300
C（H）	mm	1450	2200	2300	2300
Installation size
D	mm	1820	2920	2920	2920
E	mm	900	1700	1700	1700
Transportation weight	kg	1700	7500	7700	7500
Operating weight	kg	1750	7900	8100	7900
Refrigerant filling volume	kg	45	350	300	350

Performance Parameter Table for Low Temperature Screw Chiller Unit (Dual unit / -30℃ / R22)

EMCS-		B080ALYT	B1000ALYT	B900AHDT	B1000AHDT
Refrigeration capacity	kW	62	772	666	772
Input power	Kw	44	468	406	468
Full-load efficiency COP	kW/kW	1.41	1.65	1.64	1.65
Compressor model		RC2-140BF	RC2-1530BP	RC2-1270BHV	RC2-1530BHV
Condenser
Water flow rate	m3/h	23	267	230	267
Water pressure drop	kPa	26	82	71	80
Inlet and outlet pipe interfaces	DN	80	200	200	200
Evaporator
Water flow rate	m3/h	14	176	152	176
Water pressure drop	kPa	52	98	97	103
Inlet and outlet pipe interfaces	DN	80	200	200	200
oil separator
Dimension
A（L）	mm	3400	5500	5750	5750
B（W）	mm	1550	2500	2450	2450
C（H）	mm	1550	2300	2500	2500
Installation size
D	mm	2620	3880	4820	4820
E	mm	1050	1900	1900	1900
Transportation weight	kg	2800	13000	12500	13000
Operating weight	kg	2880	14000	13500	14000
Refrigerant filling volume	kg	70	800	700	800