Water-Cooled Screw Chiller

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1 Water-Cooled Screw Chiller A i r C o n d i t i o n i n g S y s t e m R134a 100 to 350RT

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3 New Dream, New Start To become a leader in the competitive global market, LG has been divided into three groups, electronics and chemicals for LG, energy and machineries distribution for GS, Industrial electric electronic materials for LS based on their business specialties. LS' main companies, such as LS Mtron, LS cable, LS industrial systems, LS- Nikko copper, Gaon cable, E1 and Kukdong City gas, are ranked as No.1 in their respective industry. However, LS won't just sit back, satisfied with being the best in Korea. We will pave the way for becoming the world's best in Industrial electric electronics and material industry with the new CI, LS. Your best partner LS Cable is making a fresh start as LS Mtron LS Mtron is No.1 machinery maker in Korea and its business fields are components & materials and machinery. Also, LS Mtron is creating new businesses particularly in component and materials industry. LS Mtron makes its best to accomplish the vision, 'Your No.1 Creative Partner' and be one of the world leaders with high technology and best level of service. Research & Development Tractor Components & Materials Business Air-Conditioning System Injection Molding System

4 MAIN CHARACTERISTICS AIR CONDITIONING SYSTEM The high-performance screw chiller is designed depending on 30 years research & development experience of LS Air-Conditioning System. High-performance compressor manufactured by specialized manufacturer is adopted to ensure that the chiller is economical and durable with low vibration and low noise. The primary and secondary selection function the double-head chiller compressor evenly used and hence the service life of entire machine is prolonged. Highly integrated motherboard is adopted and hence the function is strong and reliable. Model description Advanced control algorithm is adopted to control chiller in advance and hence avoid frequent stoppage protection of chiller. We have set complete safety protection function in order to make chiller safely and reliably run. The linkage control and remote monitoring function of peripheral equipments ensure that the chiller can run safely and the operation and monitoring are convenient. The selection of excellent raw materials and fittings is the key to guaranteeing chiller quality. The product is divided into flooded screw chiller SFWW and dry screw chiller SWW. S F W W X X X S A S 3 Y S Model explanation Application : S-air-condition, L-low temperature Starting mode : S-direct start, Y-Y-, I-conversion start Power : 2-220V 50Hz, 3-380V 50Hz 4-440V 50Hz, 5-220V 60Hz 6-380V 60Hz, 7-440V 60Hz Unit type : E- conversion, N- external oil distributor S-Iinner oil distributor, M-downward film type Refrigerant : A-R134a Compressor No. : S-1set, D-2sets, T-3sets, F-4sets capacity : (RT) Evaporator : W-water cooled tube and shell type, P-plate exchanger Condenser : W-water cooled tube and shell type, P-plate exchanger evaporation mode : F-flooded Semi-closed screw chiller 320DAS-3YS This is a flooded double screw chiller which is Water-cooled,with R134a as refrigerant and made in LS Air-conditioning system (Shandong) Co., Ltd. It s nominal capacity is 320USRT 4

5 SPECIFICATION R134a (50Hz) MODEL UNITS 100SAS 110SAS 120SAS 140SAS 160SAS 180SAS 230SAN USRT Capacity Kw kcal/h Power input kw Power - 3PH-380V-50HZ Rated Current A Comp. Starting current A Number SET 1 Starting mode - Y- Cooling water Chilled water Dim. Weight Ref. Frozen oil T-Inlet /outlet C Flow m 3 /h Pressure kgf/cm Diameter DN T-Inlet/outlet C 12-7 Flow m 3 /h Pressure kgf/cm Diameter DN L mm W mm H mm Transporting ton Running ton Weight kg Type - R134a Volume L Trademark - CP-solest-220 MODEL UNITS 270SAN 310SAN 190DAS 230DAS 250DAS 280DAS 320DAS 350DAS USRT Capacity kw kcal/h Power input kw Power - 3PH-380V-50HZ Rated Current A * * * * * *2 Comp. Starting current A * * * * * *2 Number SET 1 2 Starting mode - Y- Cooling water Chilled water Dim. Weight Ref. Frozen oil T-Inlet /outlet C Flow m 3 /h Pressure kgf/cm Diameter DN T-Inlet/outlet C 12-7 Flow m 3 /h Pressure kgf/cm Diameter DN L mm W mm H mm Transporting ton Running ton Weight kg Type - R134a Volume L Trademark - CP-solest RT = 3024kcal/h = 3.517kw, 1mH 2 o = 9.8kpa 2. Fouling factor of water in condenser and evaporator is 0.086m 2 k / kw 3. Maximum pressure of chilled water and cooling water system 10kgf/cm 2 4. Specifications subject to change without prior notice L S W A T E R - C O O L E D S C R E W C H I L L E R 5

6 SPECIFICATION R134a (60Hz) COMP. COOLING WATER CHILLED WATER DIM. WEIGHT MODEL UNITS 110SAS 130SAS 145SAS 165SAS 190SAS 200SAS CAPACITY USRT kw kcal/h POWER INPUT kw Power - 3PH-380V-60Hz Rated Current A Starting current A Number SET 1 Starting mode - Y-D T-Inlet /outlet C Flow m 3 /h Pressure kgf/cm Diameter DN T-Inlet/outlet C 12-7 Flow m3/h Pressure kgf/cm Diameter DN L mm W mm H mm Transporting ton Running ton REF. Trademark - R134a FROZEN OIL Volume L Trademark - CP-solest-220 Comp. Cooling water Chilled water Dim. Weight MODEL UNITS 220DAS 260DAS 290DAS 330DAS 380DAS 410DAS Capacity USRT Kw kcal/h Power input kw 80.1*2 93.7* * * * *2 Power - 3PH-380V-60Hz Rated Current A 134.7* * * * * *2 Starting current A 314.3* * * * * *2 Number SET 2 Starting mode - Y-D T-Inlet /outlet C Flow m 3 /h Pressure kgf/cm Diameter DN T-Inlet/outlet C 12-7 Flow m 3 /h Pressure kgf/cm Diameter DN L mm W mm H mm Transporting ton Running ton Ref. Trademark - R134a Frozen oil Volume L Trademark - CP-solest RT = 3024kcal/h = 3.517kw, 1mH 2 o = 9.8kpa 2. Fouling factor of water in condenser and evaporator is 0.086m 2 k / kw 3. Maximum pressure of chilled water and cooling water system 10kgf/cm 2 4. Specifications subject to change without prior notice 6

7 INSTALLATION AND DIMENSION Chiller room requirements The design and location of central air conditioner room is a comprehensive work, which must be closely coordinated with architecture, structure, water supply and drainage, building electricity and other professional work. 1. The air conditioner room should be located as near as possible to the cooling load center. For High-rise buildings with basement available for use, it should be located in the basement; for super high-rise building, it may be located at middle floor (technical equipment floor) in accordance with system division; for air conditioning modification or addition works, it may also be reconstructed outside air conditioning building or located at the roof or other place of air conditioning building, while it must be guaranteed that the building structures have enough bearing capability. 2. The equipments in the air conditioner room should be arranged closely to save covered building area. The equipment arrangement and pipe connection should accord with technological flow requirement and be easy to install, maintain and repair. 3. When the tube shell and the heat exchanger of chiller are arranged, the possibility to clean and replace tube nest should be considered. Generally, a space with length equal to chiller length will be left on one end of chiller. If there is no enough space, one end of chiller in the length direction may be directly faced to window with proper height for lighting or to gate with proper height. 4. The air-conditioner room should be made of Grade II refractory materials or incombustible materials with good sound insulation property. The room should have two exits as far as possible from each other, of which at least one should directly face to outside. Also, the direction of opening should be towards the outdoor. 5. please refer to Air conditioner Room Guaranteed Space for room height. 7. When the central air conditioner room is located in the basement, it Space between equipments in machinery room should be equipped with mechanical ventilating equipment and the least air displacement of such equipment should not less than 36.5G2/3(m3/H), where: G is the total cooling capacity of chiller. In order to reduce air displacement under non-emergency conditions, it is recommended to use multi-speed blower. The inlet and conduit of exhausting blower should be near to chiller with proper protection. 8. The central air conditioner room inside should be equipped with water discharging facilities and toilets and if available, with telephone. Also, emergency lighting should be taken into consideration. 9. The inflammable and explosive materials are not allowed to be stored in the air conditioner room except refrigerant existing in the chiller. Space between equipments in machinery room ITEMS SPACE (M) Width of main channel and operation channel >1.5 Distance between jut of chiller and switch-house >1.5 Distance between jet of chiller >1.0 Distance between chiller and wall >0.8 Width of subordination channel >0.8 Distance between side jut of the chiller >1.5 Distance between sides of absorption chill and wall > The host air conditioner in the central air conditioner room should be separated from pump room and control room and the repairing room and storage room should be arranged in accordance with practical conditions. If there are fuel absorption chiller or fuel central water heater in the air conditioner room, the idlest method is to obtain fuel from special oil depot through oil pipeline. If the fuel tank is placed in the room, then the floor arrangement should strictly follow relative fire codes and the house should be equipped with necessary fire-fighting equipments. L S W A T E R - C O O L E D S C R E W C H I L L E R 7

8 INSTALLATION AND DIMENSION Installation and size Installation requirements The installation space should be considered when the chiller are installed in order that LS service personnel are convenient to dismantle and hoist compressors and other parts. The minimum space can be determined in accordance with the table below. For multiple chiller, the space between two chiller should be not less than 120% that of single chiller. If the room space is too small, please contact LS for consultation and solution. During installation, special attention should be paid to : 1. The water pump should be installed on the side of inlet of cooled water/cooling water, if it needs to install on the outlet side, please contact LS. 2. The two sides of water pump should be installed with flexible connection to insulate pipe vibration. For water pump, the speed 2900RPM should be not chosen to the extent possible in case of resonance. TYPE MODEL A B C D E R134a (50Hz) R134a (60Hz) SFWW100SAS~SFWW120SAS SFWW140SAS~SFWW310SAN SFWW190DAS~SFWW350DAS SFWW110SAS~SFWW130SAS SFWW140SAS~SFWW360SAS SFWW220DAS~SFWW410DAS

9 DIMENSION OF FLOODED TYPE SCREW CHILLER R134a(50Hz) - Single compressor series MODEL L W H E A B C D SFWW100SAS SFWW110SAS~120SAS SFWW140SAS~180SAS L S W A T E R - C O O L E D S C R E W C H I L L E R 9

10 DIMENSION OF FLOODED TYPE SCREW CHILLER R134a(50Hz) - Dual compressor series Model L W H E A B C D SFWW190DAS~SFWW230DAS SFWW250DAS~SFWW280DAS SFWW320DAS~SFWW350DAS

11 DIMENSION OF FLOODED TYPE SCREW CHILLER R134a(50Hz) - Single compressor series MODEL L W H E A B C D SFWW230SAN SFWW270SAN~SFWW310SAN L S W A T E R - C O O L E D S C R E W C H I L L E R 11

12 DIMENSION OF FLOODED TYPE SCREW CHILLER R134a(50Hz) - Single compressor series MODEL L W H E A B C D SFWW110SAS SFWW130SAS~145SAS SFWW165SAS~190SAS SFWW200SAS

13 DIMENSION OF FLOODED TYPE SCREW CHILLER R134a(50Hz) - Dual compressor series MODEL L W H E A B C D SFWW220DAS~SFWW260DAS SFWW290DAS~330DAS SFWW380DAS~410DAS L S W A T E R - C O O L E D S C R E W C H I L L E R 13

14 FOUNDATION R134a - Flooded screw chiller Notes: 1. Floor installation is the standard installation mode of chiller. For floor installation, the rubber shock pad along with the chiller should be installed. 2. For floor installation, please refer to building codes for floor requirements and fixation methods of foundation bolt. 3. Spring damper should be installed when the chiller floor is installed, which should be noted in the contract to purchase during purchase of chiller. 4. It should be guaranteed that the horizontal tolerance in the direction of the whole length and width of chiller should be less tan 3mm. 5. After the chiller is leveled, the respective space of each spring damper should be not less than 6mm. TYPE MODEL A B C D R134a (50Hz) R134a (60Hz) SFWW100SAS SFWW110SAS ~SFWW120SAS SFWW140SAS ~SFWW180SAS SFWW230SAN SFWW270SAN~310SAN SFWW190DAS ~SFWW230DAS SFWW250DAS ~SFWW280DAS SFWW320DAS ~SFWW350DAS SFWW110SAS ~SFWW145SAS SFWW165SAS ~SFWW190SAS SFWW200SAS SFWW220DAS ~SFWW260DAS SFWW290DAS ~SFWW330DAS SFWW380DAS ~SFWW410DAS

15 PIPELINE AND ACCESSORY FACILITIES Pipeline and accessory facilities Construction cautions 1. For parts outside broken line, the customers will independently prepare materials and carry out construction. 2. The water system pressure of evaporator and condenser of water chiller should be not more than 10kgf/cm2 and if so, the chiller is special type. 3. All chiller should be equipped with special water pump and cooling water pump to the extent possible. 4. The pipeline of cooled water and cooling water should be equipped with 10-mesh filter. 5. In order for convenient management and maintenance of chiller, the following devices should be installed besides stop valves which are installed on respective pipeline of inlet/outlet of cooler water and cooling water: (1) Install thermometer and pressure gauge near the inlet/outlet of cooler water and cooling water (2) Install exhaust valve on respective pipeline of cooler water and cooling water 6. The start and stop of peripheral equipments must be controlled by control system of water chiller to guarantee interlock protection. 7. The power line inducted into starting cabinet of each compressor and connecting wire of peripheral equipments will be supplied by users and please ask for electric diagram of water chiller from the Company during design and construction Electric wiring COM CO 52C The wire between the starting cabinet and the major motor, the starting cabinet and control cabinet, the staring cabinet and electric actuating elements, the control cabinet and such sensors as pressure, temperature, etc have been connected when the chiller leave factory; the parts within the broken line in the field wiring diagram above will be supplied by the users. T T COM2 SW1 Notes : 1. The interlock contact of this part will be supplied by the users and it has no voltage (dry contact) and the maximum impedance is The contact of this part is used for starting/stopping peripheral equipments, which is lower than 250VAC 0.1A VAC 0.1A The contact of this part is used for indicating progressive running status, which is lower than 250VAC 0.1A. 4. The signal of this part will be supplied by the users. L S W A T E R - C O O L E D S C R E W C H I L L E R 15

16 Overseas Sales Office in Korea Air conditioning Overseas Business Dept. 6F Sungji Building, , Gwanyang-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Korea Tel ~3538 Fax : Factory in China , Yu-Huangling Industrial Area,Xiazhuang, Chengyang District, Qingdao, China Tel Fax Distributed by Specifications subject to change without prior notice. ACOS / Printed in Korea

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