semi-hermetic piston compressor air-cooled water chiller unit

1.semi-hermetic piston compressor 2.finned heat exchanger 3.air-cold water chiller unit 4.Mid-temperature

Features of unit

1.application of economizer

 Increase the supercooling degree of liquid refrigerant and improve unit refrigerating capacity

2.reliable functional components

 Adopting newly high efficiency heat exchange tube to make dry expansion evaporator and condenser with high heat transfer efficiency, so it can improve refrigerating capacity of the unit and reduce input power;

 Solenoid valves, oil separators, electric components etc are all world famous brand with high quality and long service life.

3.application of environmental friendly refrigerant

Various refrigerant can be used, like HFC404A, HFC134a and so on

4.various secondary refrigerant can be used

 Glycol water solution, propanediol water solution, ethanol etc, or design the evaporator as an anti-corrosive one, so that Calcium chloride water solution can be used;

5.application of high efficiency oil separator

Reduce lubricant which flow in evaporator, so it can improve the heat transfer efficiency of evaporator

6.application of injection technology

 Injecting liquid refrigerant to the compression chamber of a compressor can reduce discharge temperature efficiently

model			LSF13 Z	LSF18 Z	LSF20 Z	LSF26 Z	LSF30 Z	LSF37 Z	LSF42 Z	LSF52 Z
Nominal refrigerating capacity		kW	12.5	17.6	19.7	25.4	28.9	37	41.5	51.5
		Kcal/h ×104	1.1	1.5	1.7	2.2	2.5	3.2	3.6	4.5
		RT	3.6	5.0	5.6	7.3	8.3	10.6	12	15
Power supply			Three phase and Four wire circuit system 380V 50Hz
Nominal input power		kW	7.45	10.2	10.7	13.5	15.9	18.9	24.3	27.9
compressor	type		Semi-hermetic piston compressor
	Start-up mode		Direct start
	quantity		1
Airside heat exchanger			Fin heat exchanger
fan	type		Low noise propeller axial-flow fan
	Wind quantity	m³/h	6000×2	7000×2	8000×2	10000×2	12000×2	15000×2	11000×3	13000×3
	Rated power	kW×number of fan	0.37×2	0.55×2	0.55×2	0.75×2	0.75×2	1.1×2	1.1×3	1.3×3
evaporator	type		Dry-type shell and tube heat exchanger
	Water quantity	t/h	2.6	3.7	4.2	5.4	6.3	8.0	9.0	11
	pipe diameter		2-Rp1-1/2				2-Rp2
	Water pressure drop	kpa	40-70
	Temperature control		Chilled water temperature control
refrigerant	name		R22
	Control method		Thermal expansion valve
	Refrigerant charge	kg	4.8	6.5	7.5	9.5	11	14	15.5	19
lubricant	type		(3GS)
Overall dimension	length	mm	1700	1700	1700	1700	1700	1700	2200	2200
	Width	mm	800	800	800	800	800	800	900	900
	height	mm	1780	1780	1880	1880	1980	1980	1980	1980
Noise level		dB(A)	67	68	68	69	69	69	69	69
weight		kg	380	410	490	520	600	690	750	800

semi-hermetic piston compressor air-cooled water chiller unit