Central air conditioning chiller unit

Central air conditioning chiller units are mainly used in central air conditioning systems in large shopping malls, hospitals, factory workshops, office buildings, hotels, and other places. The ambient temperature is regulated by the cold water provided by the chiller units, and fan coil units and air conditioning terminals are required for use. In general, users tend to choose water-cooled air conditioning chillers, although there are also some users who prefer air-cooled ones. In comparison, water-cooled air conditioning chillers require auxiliary equipment for more stable cooling, while air-cooled air conditioning chillers do not require auxiliary equipment and are easy to install, but have requirements for the installation environment.

Central air conditioning chiller units are mainly used in central air conditioning systems in large shopping malls, hospitals, factory workshops, office buildings, hotels, and other places. The ambient temperature is regulated by the cold water provided by the chiller units, and fan coil units and air conditioning terminals are required for use. In general, users tend to choose water-cooled air conditioning chillers, although there are also some users who prefer air-cooled ones. In comparison, water-cooled air conditioning chillers require auxiliary equipment for more stable cooling, while air-cooled air conditioning chillers do not require auxiliary equipment and are easy to install, but have requirements for the installation environment.

Configuration characteristics of water-cooled central air conditioning chiller unit

1. Compressor

Selected original imported famous brand semi enclosed screw and semi enclosed reciprocating compressors such as BITZER (Germany), HANBELL (Taiwan Hanzhong), RefComp (Italy Lefcon), etc. It has the advantages of smooth and reliable operation, high efficiency with low faults, good performance, low vibration and noise, energy saving, easy maintenance, and long service life. According to customer needs and the size of the cooling capacity, single or multiple machine combinations can be used. The compressor can automatically alternate operation according to load changes, with automatic energy regulation (25% -50% -75% -100%), balancing the operating hours of each compressor, greatly extending the service life of the chiller unit.

2. Evaporator

The evaporator copper tube adopts an internally and externally threaded reinforced tube. The surface of the copper tube has threads, the outer surface of the copper tube is smooth, and the cooling effect is good. The evaporator cylinder is insulated with a 25mm thick PE insulation board, which does not condense and reduces the loss of cooling capacity.

3. Condenser

The condenser adopts copper pipes imported from abroad and processed into trapezoidal low rib pipes to enhance heat transfer capacity. The surface of the copper pipes is smooth, which reduces water pressure and is easy to clean and maintain.

4. Protective device

The protection system devices include: compressor delay start protector, overload protector, high and low pressure protector, temperature control switch, antifreeze switch, fuse plug, electronic time protection safety valve, compressor overheat protector, compressor frequent start protector, and abnormal indicator light to ensure the normal operation of the unit.

5. Control system

The company has developed a highly intelligent PLC and PC level computer control system, which can be used for remote monitoring and control. It has multiple functions such as automatic loading and unloading, timed power on and off, and recording of fault causes; Easy to operate, connect the host to the power supply. Low failure rate, high safety factor, simple installation, system control can be adjusted in real time, intuitive and reliable.

6. Freezing accessories

All frozen accessories are selected from top global brands such as SPORLAN (Poland, USA), ALCO (Alco, USA), DANFOSS (Danfoss, Denmark), etc., with excellent performance, safety and environmental protection.

Water cooled screw chiller with single compressor technical parameters
Model No. of Simpson			SPS-120CS	SPS-160CS	SPS-220CS	SPS-290CS	SPS-310CS	SPS-370CS	SPS-445CS	SPS-460CS	SPS-51OCS	SPS-600CS
Use power supply			3Φ-380V-50Hz
Rated Cooling Capacity		KW	120.4	164.2	215.3	285.8	313.7	369.7	444.3	462.2	509.4	606.1
		Kcal/h	103500	141200	185100	245700	269700	317900	367500	397800	438000	5212OO
Power Consumption Input		KW	30.3	39	55.2	63.6	75.4	85.8	96.1	105.1	116.4	130.6
Operating current of the unit		A	50.9	63.8	87.5	108.1	122.2	138.6	158	179.7	185.3	219.6
Chilled water flow		m³/h	20.7	28.2	37	49.1	53.9	63.6	73.5	79.6	87.6	1O4.2
Cooling water flow		m³/h	24.9	33.7	43.9	58.4	64	74.9	86.6	93.8	103.5	122.7
compressor Compressor	Type of form	-	Semi sealed screw type
	Quantity Qty	PCS	1
	Starting mode		Y-△
	Capacity control	%	0,33,66100 or 0,25,50100
	Power Supply	KW	30	37.6	52.3	66.1	71.3	85.2	98.4	105.1	116.4	130.6
Refrigerant Oil Refrigerant oil Evaporator	Type Model	-	HBR-A01
	Capacity Capacity	L	7	7	7	8	12	16	16	16	18	23
refrigerant Refrigerant	Type Model	-	R-22
	Control mode	-	Thermal Expansion Valve
	Capacity Capacity	Kg	18	25	32	42	46	55	62	68	75	90
evaporator Evaporator	Type of form	-	Shell&tube type
	Pipe diameter	mm	DN80		DN100					DN125		DN150
Condenser	Type of form	-	Shell&tube type
	Pipe diameter	mm	DN80		DN100					DN125		DN150
Safety Device			High bottom pressure switch, antifreeze protection, thrombolytic/safety valve, overload protection device, coil overheat protector, temperature automatic protection switch, etc High & low pressure protection, Dual anti-icing protection, Safety valve, Overload protection, Coil overheat protector, Temperature automatic protection switch,etc.
External dimensions Dimension	Long (L)	mm	2250	2300	2500	2500	2600	2800	2800	3200	3300
	Width (W)	mm	800	800	800	800	850	850	850	900	900	900
	High (H)	mm	1450	1450	1550	1550	1700	1700	1800	1800	1800	1900
Weight of the crew		Kg	1050	1200	1360	1600	1750	1850	2000	2100	2500	2900