Service information center. LS Absorption Chiller Catalog.pdf · Head Office ... LS. LS Cable is No. 1 cable maker in Korea and its business fields are telecommunication, ... Absorption

ASME ISO 9001 ISO 14001

www.lsaircondition.com

Head Office200, Dangjung-dong, Gunpo-si, Kyounggi-do 435-712. KOREA Tel. 82-31-450-3755, 3756, 3390, 3741 Fax. 82-31-450-3077Service information center. 82-31-450-3524~5

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 1

New Dream, New StartTo become a leader in the competitive global market, LG has been divided intothree groups, electronics and chemicals for LG, energy and machineries distribu-tion for GS, Industrial electric · electronic materials for LS based on their businessspecialties.

LS' main companies, such as LS cable, LS industrial systems, LS-Nikko copper,Gaon cable, E1 and Kukdong City gas, are ranked as No.1 in their respectiveindustry. However, LS won't just sit back, satisfied with being the best in Korea. Wewill pave the way for becoming the world's best in Industrial electric · electronicsand material industry with the new CI, LS.

LS Cable is No. 1 cable maker in Korea and its business fields are telecommunication,electric power, components & materials and machinery. Also, LS Cable is creatingnew businesses particularly in component and materials industry. LS Cable makes itsbest to accomplish the vision, 'Your No.1 Creative Partner' and be one of the worldleaders with high technology and best level of service.

Your good partner LG Cable is making a fresh start as LS Cable

Jan. 1984 Lucky-Gold-Star Group Conglomerated

1983 Gold Star Heavy Industry established Gold Star acquired Tractor business with Gunpo plant from KHIC.

1977 KHIC (Korea heavy Industries & Construction Co.) started tractor business in Gunpo Plant with FIAT (current CNH) technology

1968 KHIC started HVAC business in Gunpo plant1962 Gold Star Cable Ltd. Established1958 Gold Star Electronics Ltd. established

1947 Lucky Chemical company established

Electronics(’58)& Cable(’62)

GOLD STAR

Chemical(’47)& Energy(’67)

LUCKY

LUCKY

LUCKY GOLD STAR

• Construction• Energy• Service

• Electronics• Telecommunication• Chemical

• Cable• Machinery• Industrial System

Mar. 2005 LS group spun out from LG Holdings

2002 HST Tractor developed with EATON technology

1999 LG Machinery combined with LG Cable Ltd.

1998 ITI Technical Cooperation for Tractor Reliability Technology

Jan. 1995 LG group renamed from Lucky-Gold-Star groupLG Machinery renamed from Gold Star Heavy Industry

1984 MHI (Mitsubishi Heavy Industry) Engine Technical Cooperation MAM (Mitsubishi Agricultural Machinery) Tractor Technical Cooperation

1983 Technical Cooperation with Sanyo Electric Double Effect Absorption Chiller

LUCKY GOLD STAR

LG Cable, LG Industrial Systems and LG-Nikko Copper, Gaon Cable, E1 and Kukdong City Gas are starting with a new name, Leading Solution, LS.

Components & Materials Business

Telecommunication Business

Electric PowerBusiness

Research &Development

MachineryBusiness

Human communicationconnecting minds

Main energy arterylightening the world

Macro world by micro technology

World incorporatingnature and human

Awakening and changingprime power

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LS Absorption Machine

With over 50% domestic market share, LS cable has provided heating, ventilating and air conditioning totalsolution to industrial and commercial filelds over 30 years. Now the company, specialized in absorption,centrifugal & GHP, now wants to share its leading technology with the global friends.

The LS Absorption Chillers have always been nation’s No.1 energy saving chillers, since the company hasconsidered R&D as frontier mover of all.

Features of LS Absorption Chillers

· Beneficial where cooling/heating demands are all year around by using diversified energy sources as Gas, Steam andHot water.

· Reduces operation cost in where electrical costs are high.

· Utilizing environmental safe, non chlorine mixture based refrigerant.

· Reduces green house effect by less using hydocarbon fuels as well as electricity.

Cooling water flows through the Absorber to theCondenser. The cooling water in the Condenser coolsdown the refrigerant vapor from the the Generator backinto refrigerant. The cooling water in the Absorber absorbsthe heat when the refrigerant vapor is absorbed by theabsorbent.The Generator heat the diluted solution by driving heatsource. The diluted solution releases the refrigerant vaporand becomes the concentrated solution.At the Condenser, the refrierant vapor which came fromthe Generator condensed by cooling water.The condensed refrigerant drops on the heat transfertubes of evaporator drops of the refriqerant evaporateon the tubes. The water through the heat transfer tubes ofevaporator is cooled by the latent heat of vaporized refrig-erant.The refrigerant vapor is absorbed on the heat transfertubes by absorbent from the Generator. The absorbentdiluted by refrigerant vapor goes to the Generator.


Single Effect Cycle

In case of the Single Effect Type Absorption Machine, allcondensation heat when the refrigerant vapor coming fromGenerator is cooled and condensed at the Condenser, isreleased in the cooling water.The Double Effect Type Absorption Machine is used thecondensation heat efficiency. The Generator section isdivided into a High Temperature Generator and a LowTemperature Generator. The refrigerant vapor produced bythe High Temperature generator is used to heat the LiBrsolution in the Low Temperature Generator in which thepressure(hence the boiling point) is lower.As mentioned in the Single Effect Type Machine, the refrig-erant vapor produced by the Low Temperature Generator issent to the Condenser to become liquid refrigerant. On theother hand, the refrigerant vapor produced by the HighTemperature Generator turns to water as it released heat tothe intermediate LiBr solution. This occurs inside the heattransfer tubes in the Low Temperature Generator. Therefrigerant vapor produced by both Low and High tempera-ture Generator turn to liquid refrigerant and mixed in theCondenser before returning to the Evaporator.In this step, the diluted solution is heated by driving heatsource and by the latent heat in the refrigerant vapor whichotherwise would be released into the cooling water. Thiscombination means a lower energy consumption of drivingheat source. Moreover, less heat being discarded into thecooling water translates into a small cooling water. Asshown above.

Double Effect Cycle

4 · 5

LS Absoption Chiller

Model TYPEDF : Direct FiredSH, SM, SL : Steam Fired (High, Medium, Low Pressure Range; 1~8kgf/cm2G)WM : Hot Water Fired Nominal Cooling Capacity

Shown by 10usRT unitsEx) 150usRT=015

SD FL S G-

Type SeruesS : S-TYPE W : W-TYPE

Double-Effect Direct-Fired Absorption Machine

Double-Effect Steam-Fired Absorption Machine

Single-Effect Hot-Water Fired Absorption Machine

Fuel Sources (DF type only)G : GAS(LNG)K : KeroseneD : Dual

Rank-Up(Heating)S : Standard1 Stage Rank-up : “S” 2 Stage Rank-up : “A”

0 3 2

Condenser Generator

Evaoorator Absorber

Condenser Generator

Evaoorator

Absorber

Model Naming

Absorption Cycle

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LS Absorption Machine 6 · 7

Outstanding Performance Features

1min

Stop Signal

Combustion

RefrigerantPump

CoolingWater Pump

AbsorbentPump No.1

AbsorbentPump No.2

1min4min

Shut Down

Combustion

Completedwhen the Temp. ofHigh Temp. Generatorreaches 120¡˘ C

T2

Inverter Controlled Solution pump enabled High Part-Load Efficiency with Fast Full-Loaded Operation

·Optimized flow rate of solution is decided upon coolingdemand and that to enable highly efficient energy savingoperation at all operation range.

Optimized Dilution Operation shortened Stoppage time

· LS's newly designed Microprocessor decides when toequalize concentration of solution in every part of chillerby self diagnostic calculations. Also this led to saving dilu-tion operation as well as energy saving at auxiliary equip-ments, such as water pumps by reducing idle time from15 min to 5 min.

Reinforced Safety Operation Function

· LS's unique microprocessor keeps monitoring every partof chiller so to prevent any damage could happen atabnormal operation. The machine can stop automaticallyby reinforced safety function even when the chiller opera-tion reached at abnormal state.

Reinforced User Interface DesignOver 30 years experience with successful 10000 unit delivery, LS Absorption chiller has born with focusing on userinterface and reliable convenient operations that to considered as a first step of total HVAC solution.

High Efficiency & High Energy SavingOperation

50

100

LS’s New PID Control

Conventional Control

time

Coo

ling

Cap

acity

(%)

0.15

0.10

20 40 60 80 100

0.30

0.25

0.20

Cooling Load

LNG

GAS

Con

sum

ptio

n (N

m3 /h

. RT)

ON-OFF Control

P Control


High Corrosion Resistance Designed HTG

·Due to new HTG design with smoke type tube andenlarged heat transfer surface, corrosion on partial hightemperature zone at HTG is relieved and the increasedheat flux fabricated additional efficiency factor which ledto energy saving. Also compact design allowed mini-mized number of connection joint which made machinewith higher durability and reliability.

High Performance of Purging System

·Newly designed injector typed, purging either at uppershell and lower shell, a new LS purging system, enabledless purging time and better purging performance.

Marine Hatch Type Water Box

·No need to cut or dissemble for tube cleaning or mainte-nance purposes, marine hatch typed water box allows anoperator to clean tubes in less time.

Refrigerant Re-Cycling Circuit

· A non evaporized refrigerant that is accumulated at thebottom, is once again pumped to uppershell for a storagein case of sudden cooling demand which can cause dryout in evaporator. Thanks to recycling refrigerant, a cool-ing water can be lowered as 19˚C.

· Also this circuit can supply refrigerant from refrigeranttank to evaporator when refrigerant is lacked in evapora-tor at part load and let the chiller run at low cooling watertemperature condition.

High reliability with Practical Design

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A new Quick Response PID Control

· A quick response, new LS designed PID algorithmenabled high sensitive combustion control rate that tomeet minimized reaching time of demand temperature.It also reduced the fluctuating temperature differenceso that to enable constant temperature control logic.

Anti-Crystallization Safety Operation

· A solution concentration is monitored at micro processorin all operational condition and keeps concentration levelin optimum state by controlling a combustion rate.

98765

temp.(˚C)

Set Value

Load90%

60%


Conventional Control(P Control)

Load Variation

time

User Set Menu

Language Selection Service Menu

Graph Display

Delicate Designed with PID Control based, a new Micro Processor enables LS Chilleralways at optimum operation state

Self Diagnostics / Mal function alarm feature

· If any disturbing factor predicted while normal opera-tion, a chiller tests itself and determines whether it hasto turn into safe mode operation or to stop.

<Maintenance purpose>– Chamber Cleaning: by monitoring exhaust gas

temperature, operators can predict right time of cleaninga combustion channel of HTG.

<Malfunction alarm feature>– Monitoring all sensors, of their conditions like

temperatures and pressure state so that if any abnormalsign occurs it shows abnormal reason on the display foreasy operation.

Energy saving by high efficient operation

· A maximum 10% of energy has been saved by varyingcooling water temperature range.

A Safety operation feature against cooling water temperature

· For stable operation, entering cooling water can bereset based on remote temperature range of 19~34°Cas well as responding its temperature at the microprocessor by controlling combustion rate.

Operation data storage/maintenance feature

· 20 years normal operation history data record

· 301 abnormal message history data record

· 10.6 day temperature sensing data record

Based on all stored data, more accurate operational maintenance is capable.

100

90

80

60

40

20

19 19 32 34

May

. Inp

ut

Energy Saving Area

CoolingWatertemp.

Area of High Gen TAH Avoid↔

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Operation State DisplayOperation state is displayed either in text or as graph soto enable better understanding

Printer(Option)Stored operation normal/abnormal/ alarm history datacan be printed out from mounted printer

Flow Rate Indication(Option)A flow rate of chilled/ cooling water flow rate can be indi-cated on the display. For this operation an additionaltransducer should be applied on chilled/cooling waterpipe line.

Annex System ControlPumps and cooling fan are in control with micro proces-sor for automated operation

Schedule OperationSchedule operation can be done in days or at thedesired any time

LS Remote Monitoring & Control System allow operators to check and

control LS Chiller family remotely via

Internet or direct connection

TCP/IP

Serial to LANConvterter

ProtocolConverter

RS-485 Multi-Drop

Features– Easy access to Upper System via MODBUS Protocol– Support TCP/IP– Operational data acquisition– Graphical display of monitoring & control status– Data editing and Report generation with MS EXCEL– Real-time graphical display of trend data– Various graphic display for analog data– Password protedcted

Optimized Operation

· Integrated Management– Integrated control of Chillers and

Peripheral Equipment which are connected to

LS controller

· Preventative Maintenance– Log data management

: Daily report generation of operation data,

abnormal data and etc.

· Operational Cost Saving– Cost saving through centralized monitoring

· Auxiliary Function– Control of peripheral equipment, load control

Main Control Screen System P&ID Chiller P&ID

Enhanced user interface designed Micro processor

Communication protocol for Building Automation and Remote monitoring control

· Easily accessible to user's interface

· RS232c/RS485 communication processor installed

· BACnet, MODbus, TCP/IP Modem, Modem are available as an option

Group Unit System Control for Intelligent Buildings and huge Factories

RS-485 Multi-Drop

RS485 to RS232cConvrter

RS-485 Multi-Drop

SYSTEM CONFIGURATION

STATUSDISPLAY

(LED DISPLAY)OPERATION

TIME(LCD DISPLAY)

NO. OFRUN/STOP

(LCD DISPLAY)

READINGVALUE

(LCD DISPLAY)

SETTINGVALUE

· VOLTAGE · COOLING

· RUN · HEATING

· STOP

· CHW/HW INLET TEMP.

· CHW/HW OUTLET TEMP.

· CW INLET TEMP.

· H.GEN TEMP.

· L.GEN TEMP.

· CONDENSING TEMP.

· REMOTE SET TEMP.

· CONTROL V/V OPEN(%)

· LIBR CONCENTRATION

· INVERTER(HZ)

· PID VALUE

· RUNNING TIME

· COMBUSTION TIME

· REF. PUMP RUN TIME

· ABS PUMP #1 RUN TIME

· ABS PUMP #2 RUN TIME

· CHILLER RUN/STOP

· COMBUSTION RUN/STOP

· ABS PUMP #1 RUN/STOP

· ABS PUMP #2 RUN/STOP

· CHW/HW INLET TEMP.

· CHW/HW OUTLET TEMP.

· CW TEMP.

· P VALUE

· I VALUE

· D CALUE

· COMBUSTION SIGNAL

· PURGE CHAMBER PRESSURE

· H. GEN LEVEL LOW

· RUN MODE

· CONTROL V/V MODE

· ABS PUMP #1 TH. RELAY

· ABS PUMP #2 TH. RELAY

· CHW/HW PUMP INTERLOCK

· CW PUMP INTERLOCK

· H. GEN PRESSURE

· CHW FLOW RATE

· CW FLOW RATE

· ABS PUMP #1 M. CONTACTOR

· ABS PUMP #2 M. CONTACTOR

· PURGE PUMP M. CONTACTOR

READINGVALUE

(LCD DISPLAY)

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LS Absorption MachineLS Absorption Machine

Cycle of Double-EffectDirect-Fired

Machine

Pur

ge v

alve

Vacuum Pump

Low Temp.Heat Exchanger

RefrigerantPump

AbsorbentPump

Cooling WaterInlet

Cooling WaterOutlet

Cooling Water

RefrigerantVapur

DilutedSolution

ChilledWaterOutlet

ChilledWater

Controller

Refrigerant

ChilledWater

Inlet

High Temp.Heat Exchanger

FuelControl

Valve Blower

Damper

High TempGenerator

Exhaust GasFusible Plug

Low TempGeneratorCondenser

PB

Evaporator Abosorber

IntermediateSolution

ConcentratedSolution

LI BR+H2O

PurgeUnit

H2O

Burner

12 · 13

Note 1. 1 usRT = 3,024kcal/h 2. Standard max. pressure of water circuits : 8kg/cm2 3. Standard gas pressure : 4,000mmAq 4. Amperes are based on 3Ph/380V/50Hz 5. Power supply wire size is based on the sue of metal conduit and 40°C of ambient temperature. 6. The specifications are subject to change without prior notice.

LDF-S045S LDF-S050S LDF-S056S LDF-S063S LDF-S070S LDF-S080S LDF-S090S LDF-S100S LDF-S110S LDF-S120S LDF-S130S LDF-S140S LDF-S150S

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,5001,139 1,265 1,417 1,594 1,771 2,024 2,277 2,530 2,783 3,036 3,289 3,542 3,795

Cooling mode 12 – 7˚C (Heating mode 55.8 – 60˚C)272.2 302.4 339.0 381.0 423.0 484.0 544.0 605.0 665.0 726.0 786.0 847.0 907.05.2 5.5 4.6 6.2 8.1 4.7 6.4 8.4 6.2 7.9 9.8 8.0 9.88 8 8 8 8 10 10 10 12 12 12 14 14

32 – 37.5˚C450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,50010.3 11.2 7.1 9.4 12.1 8.4 11.1 14.3 8.8 10.9 13.4 12.3 14.610 10 10 10 10 14 14 14 16 16 16 16 16

3Ph, 220/380, 50/60Hz27.32 27.32 40.42 41.82 41.82 40.62 49.62 57.32 69.4 69.4 69.4 69.4 69.45.5 5.5 14.0 14.0 14.0 14.0 14.0 22.0 22.0 38.0 38.0 38.0 38.013.9 13.9 24.4 24.4 24.4 27.2 33.4 33.4 49.4 49.4 49.4 49.4 49.429.12 29.12 42.22 46.42 46.42 45.22 54.22 61.92 74 74 74 74 748.0 8.0 14.0 14.0 14.0 14.0 22.0 22.0 38.0 38.0 38.0 38.0 38.0 17.2 17.2 25.5 25.5 27.6 30.1 36.0 36.0 52.0 52.0 52.0 52.0 52.0

3.4(10.2) 3.4(10.2) 6.6(16.2) 6.6(16.2) 6.6(16.2) 6.6(16.2) 7.5(25.0) 7.5(25.0) 7.5(25.0) 7.5(25.0) 7.5(25.0) 7.5(25.0) 7.5(25.0)n/a n/a 2.0(6.8) 2.0(6.8) 2.0(6.8) 2.2(5.8) 2.2(5.8) 2.2(5.8) 5.5(14.5) 5.5(14.5) 5.5(14.5) 5.5(14.5) 5.5(14.5)

0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42) 1.5(4.0) 1.5(4.0) 1.5(4.0) 1.5(4.0) 1.5(4.0)0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.75(2.4) 0.75(2.4) 0.75(2.4) 0.75(2.4) 0.75(2.4)5.5(13.6) 5.5(13.6) 5.5(13.6) 7.5(15.0) 7.5(15.0) 7.5(15.0) 7.5(15.0) 11(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7)5.5(13.6) 5.5(13.6) 5.5(13.6) 7.5(15.0) 7.5(15.0) 7.5(15.0) 7.5(15.0) 11(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7) 11.0(22.7)0.55(1.8) 0.55(1.8) 0.55(1.8) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6) 1.1(4.6)

1.8 1.8 1.8 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.60.5 0.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

4,870 4,870 5,060 5,600 6,100 5,740 6,240 6,760 6,170 6,690 7,190 6,850 7,3502,570 2,570 3,080 3,080 3,080 3,400 3,400 3,400 4,180 4,180 4,180 4,590 4,5902,765 2,765 3,255 3,255 3,255 3,600 3,600 3,600 3,600 3,600 3,600 3,800 3,800 15.2 15.6 21.8 23.5 25.3 33.5 36.1 38.9 44.3 47.6 50.6 55.5 58.510.3 10.3 15.5 16.5 17.6 17.1 18.2 19.4 21.3 22.7 23.9 26.0 27.313.3 13.4 19.1 20.6 22.1 29.4 31.8 34.3 39.8 42.8 45.5 50.0 52.6

One-Section Multi-Secitional-Shipment2 2 2 2 2 2 2 2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2

122.9 136.5 153 172 191 218 245 273 300 327 355 382 40915 15 20 20 20 25 25 25 25 25 25 25 25

123.3 137 154 173 192 219 246 273 301 328 356 383 411410x310 500x350 620x400 900x400

4,500 4,500 4,600 5,200 5,700 5,200 5,700 6,200 5,700 6,200 6,700 6,200 6,200

Standard Specifications

MODEL UNIT LDF-S010S LDF-S012S LDF-S015S LDF-S018S LDF-S021S LDF-S024S LDF-S028S LDF-S032S LDF-S036S LDF-S040S

USRT 100 120 150 180 210 240 280 320 360 400M cal/h 253 304 380 455 531 607 708 810 911 1,012

˚Cm3/h 60.5 72.6 90.7 108.9 127.0 145.2 169.3 193.5 217.7 241.9mAq 6.5 6.6 8.0 8.3 7.5 7.9 5.1 5.5 5.8 6.1

B(inch) 4 4 4 4 5 5 6 6 6 6˚C

m3/h 100 120 150 180 210 240 280 320 360 400mAq 3.9 4.4 6.5 7.7 5.6 6.2 10.9 12.1 8.7 9.4

B(inch) 5 5 5 5 6 6 8 8 8 8VA 11.83 14.23 14.23 14.23 14.23 15.63 19.72 19.72 27.32 27.32

mm3 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 5.5kVA 7.3 7.3 7.7 8.6 8.6 8.6 11.9 11.9 11.9 13.9

A 12.63 16.03 16.03 16.03 16.03 17.43 21.52 21.52 29.12 29.12mm3 3.5 3.5 3.5 3.5 3.5 3.5 5.5 5.5 8.0 8.0kVA 7.7 7.7 7.7 9.7 9.7 9.7 15.1 15.1 17.2 17.2

kW(A) 2.4(6.4) 2.4(6.4) 2.4(6.4) 2.4(6.4) 2.4(6.4) 2.4(6.4) 3.4(10.2) 3.4(10.2) 3.4(10.2) 3.4(10.2)kW(A) n/a n/a n/a n/a n/a n/a n/a n/a n/a n/akW(A) 0.2(1.13) 0.2(1.13) 0.2(1.13) 0.2(1.13) 0.2(1.13) 0.2(1.13) 0.4(1.42) 0.4(1.42) 0.4(1.42) 0.4(1.42)kW(A) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6) 0.4(1.6)kW(A) 0.75(2.2) 1.5(4.6) 1.5(4.6) 1.5(4.6) 1.5(4.6) 2.2(6.0) 2.2(6.0) 2.2(6.0) 5.5(13.6) 5.5(13.6)kW(A) 0.75(2.2) 1.5(4.6) 1.5(4.6) 1.5(4.6) 1.5(4.6) 2.2(6.0) 2.2(6.0) 2.2(6.0) 5.5(13.6) 5.5(13.6)kW(A) 0.24(0.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8) 0.55(1.8)

0.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.80.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

mm 2,700 2,700 3,720 3,720 3,740 3,740 4,780 4,780 4,890 4,890mm 1,990 1,990 1,990 2,010 2,190 2,210 2,170 2,170 2,310 2,350mm 2,030 2,030 2,030 2,030 2,300 2,300 2,300 2,300 2,540 2,540ton 4.8 5.1 6.1 6.7 7.9 8.2 9.2 9.8 12.3 12.7ton 3.2 3.3 4.0 4.3 5.0 6.0 6.2 6.7 8.4 8.6ton 4.0 4.2 5.1 5.6 6.4 7.6 8.1 8.7 10.8 11.1

B(inch) 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 2Nm3/h 27.3 32.8 41.0 49.1 57.3 65.5 76.4 87.4 98.3 109.2B(inch) 15 15 15 15 15 15 15 15 15 15

kg/h 27.4 32.9 41.1 49.3 57.5 65.8 76.7 87.7 98.6 109.6mm 280x210 310x310 360x310mm 2,400 2,400 3,400 3,400 3,400 3,400 4,500 4,500 4,500 4,500

Nominal Cooling CapacityNominal Heating Capacity

TemperatureWater Flow RatePressure DropConnection SizeTemperatureWater Flow RatePressure DropConnection SizeSource

Total Electric CurrentGas Wire Size

Electric ConsumptionTotal Electric Current

Oil Wire SizeElectric Consumption

Absorbent Pump No.1Absorbent Pump No.2Refrigerant PumpPurge PumpBummer Blower(Gas)Bummer Blower(Oil)Oil Pump(Oil)

Lenght(L)Depth(W)Height(H)OperatingMax. ShippingTotal ShippingShipment

GasConnetion Size11,000kcal/Nm3(Cooling/Heating)

OilConnection sizeDiesel(Cooling/Heating)

Flue Connection SizeClearance For Tube Removal

Chilled(Hot)Water

System

CoolingWater

System

Dimension

Weight

Fuel

ElectricityPowerSupply

Cooling mode 12 – 7˚C (Heating mode 55.8 – 60˚C)

32 – 37.5˚C

3Ph, 220/380, 50/60Hz

One-Section

LDF-S Series [100~1,500USRT]

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 12



PSIG RF FLANGES.2. INSTALLATION AND SERVICE CLEARANCE AS FOLLOWS :

1. ALL WATER PIPING CONNECTIONS ARE WELDED ANSI 150

NOTE

D*

C*

B*

A*

D

C

B

A

D

C

B

A

G

(H)

(L)(W)

LONGITUDINAL DISTANCE - 1000mmTOP - 200mmOTHERS - 500mm

R630

MICOM

R630

D*

C*

B*

A*

D

C

B

A

D

C

B

A

(G)

(H)

(W) (L)

CONTROL PANEL SIDE - 1200mmLONGITUDINAL DISTANCE - 1000mm


2. INSTALLATION AND SERVICE CLEARANCE AS FOLLOWS:PSIG RF FLANGES.

NOTE

TOP - 200mmOTHERS - 500mm

ModelLength(L) Depth(W) Height(H) A B C D G(mm)

Dimension(mm) Connection Size(inch)

LDF-S010S 2700 1990 2030 5* 4 4 5* 2400

LDF-S012S 2700 1990 2030 5* 4 4 5* 2400

LDF-S015S 3720 1990 2030 5 4* 4 5* 3400

LDF-S018S 3720 2010 2030 5 4* 4 5* 3400

LDF-S021S 3740 2190 2300 6 5* 5 6* 3400

LDF-S024S 3740 2210 2300 6 5* 5 6* 3400

LDF-S028S 4780 2170 2300 8 6 6 8* 4500

LDF-S032S 4780 2170 2300 8 6 6 8* 4500

LDF-S036S 4890 2310 2540 8 6 6 8* 4500

LDF-S040S 4890 2350 2540 8 6 6 8* 4500

LDF-S045S 4870 2570 2765 10 8 8 10* 4500

LDF-S050S 4870 2570 2765 10 8 8 10* 4500

LDF-S056S 5060 3080 3255 12* 8 8 12 4600

LDF-S063S 5600 3080 3255 12* 8 8 12 5200

LDF-S070S 6100 3080 3255 12* 8 8 12 5700

LDF-S080S 5740 3400 3600 14* 10 10 14 5200

LDF-S090S 6240 3400 3600 14* 10 10 14 5700

LDF-S100S 6760 3400 3600 14* 10 10 14 6200

A : Cooling water inlet B : Chilled water inlet C : Chilled water outlet D : Cooling water outlet G : Space for tube removal

ModelLength(L) Depth(W) Height(H) A B C D G(mm)


LDF-S110S 6170 4180 3600 16 12 12 16 5700

LDF-S120S 6690 4180 3600 16 12 12 16 6200

LDF-S130S 7190 4180 3600 16 12 12 16 6700

LDF-S140S 6850 4590 3800 16 14 14 16 6200

LDF-S150S 7350 4590 3800 16 14 14 16 6200

A : Cooling water inlet B : Chilled water inlet C : Chilled water outlet D : Cooling water outlet G : Space for tube removal

Outline (LDF-S010S~S100S) Outline (LDF-S110S~S150S)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 14


ModelDimension(mm)

A B C D E F G H I J K LLDF-S010S 170 175 1926 175 170 200 880 200 480 520 300 160LDF-S012S 170 175 1926 175 170 200 880 200 480 520 300 160LDF-S015S 170 175 2946 175 170 200 880 200 480 573 300 160LDF-S018S 170 175 2946 175 170 200 880 200 480 589 300 160LDF-S021S 185 185 2916 185 185 170 940 170 600 563 350 185LDF-S024S 185 185 2916 185 185 170 940 170 600 585 350 185LDF-S028S 185 185 3936 185 185 170 940 170 600 548 350 185LDF-S032S 185 185 3936 185 185 170 940 170 600 535 350 185LDF-S036S 210 210 3886 210 210 170 980 170 640 497 450 210LDF-S040S 210 210 3886 210 210 170 980 170 640 537 450 210LDF-S045S 210 210 3886 210 210 170 1080 170 740 557 550 210LDF-S050S 210 210 3886 210 210 170 1080 170 740 557 550 210LDF-S056S 235 235 3836 235 235 180 1280 180 920 480 960 200LDF-S063S 235 235 4378 235 235 180 1280 180 920 480 960 200LDF-S070S 235 235 4876 235 235 180 1280 180 920 480 960 200LDF-S080S 210 210 4328 210 210 130 1380 130 1120 460 1160 200LDF-S090S 210 210 4826 210 210 130 1380 130 1120 460 1160 200LDF-S100S 210 210 5350 210 210 130 1380 130 1120 460 1160 200LDF-S110S 210 210 4426 210 210 130 1500 130 1240 750 1260 200LDF-S120S 210 210 4950 210 210 130 1500 130 1240 750 1260 200LDF-S130S 210 210 5450 210 210 130 1500 130 1240 750 1260 200LDF-S140S 210 210 4950 210 210 130 1720 130 1460 800 1340 200LDF-S150S 210 210 5450 210 210 130 1720 130 1460 800 1340 200

· Material: Glass wool, Non-flammable rubber sponge Galvanized steel plate

· Insulation area includes pipings

100mm FOR WARM SURFACE50mm FOR WARM SURFACE

25mm FOR WARM SURFACE

20mm FOR COLD SURFACE

20mm FOR COLD SURFACE(Ref. pump, piping & etc)

Size(mm) Warm(m2) Cold(m2)Model 100mm 50mm 25mm 20mm

6.3 1.6 3.4 4.46.9 1.6 3.7 4.48.1 2.2 3.9 5.98.7 2.2 4.3 5.9

10.1 2.4 4.7 6.810.9 2.4 4.8 6.811.9 3.2 5.6 8.412.6 3.2 5.8 8.414.5 3.7 6.2 9.915.3 3.7 6.3 9.917.5 4.0 6.5 11.218.4 4.0 6.7 11.2

LDF-S010SLDF-S012SLDF-S015SLDF-S018SLDF-S021SLDF-S024SLDF-S028SLDF-S032SLDF-S036SLDF-S040SLDF-S045SLDF-S050S

Size(mm) Warm(m2) Cold(m2)Model 100mm 50mm 25mm 20mm

20.0 4.8 7.0 13.9

21.3 5.2 7.4 15.0

22.4 5.6 7.7 16.1

27.2 6.2 8.5 17.3

29.0 6.6 8.9 19.5

30.8 7.0 9.3 19.9

36.7 7.6 10.8 12.7

38.7 8.0 11.1 13.3

40.7 8.4 11.4 13.8

45.5 8.6 12.1 14.6

47.0 9.1 12.4 15.1

LDF-S056S

LDF-S063S

LDF-S070S

LDF-S080S

LDF-S090S

LDF-S100S

LDF-S110S

LDF-S120S

LDF-S130S

LDF-S140S

LDF-S150S

Don’t insulate fusible plug.

Removal structureCombustion

chambercover

Refrigerant PumpDon’t insulate the motor of refrigerant pump


BASE CONTACT

N

I G

HF

100(

50) 100(50)100(

50)

100(50)

C

EDBA

W (ton)X (ton)

V (ton)U (ton)

JK

P

M L

Q

O

R

S

T

AA

BB

NUT

WELD

WASHER

BASE PLATE

200~250 200~250HEIGHT HEIGHT

B-BSECTIONA-ASECTION

1. INDICATES THE POSITON OF ANCHOR BOLTS.

2. THE FOUNDATION AND THE FLOOR MUST BE SUFFICIENTLY

5. UNIT MUST BE LEVELED BEFORE STARTUP.(HORIZONTAL LEVEL MUST BE BELOW THAN 2mm/1000mm)

ANCHOR BOLTS MUST BE FIXED ON THE FOUNDATION PRIOR TONUTS AND WASHERS, SHALL BE SUPPLIED TOGETHER WITH CHILLER.

4. ONLY IF FOUNDATION ANCHORING IS REQUIRED, ANCHOR BOLTS,

STRONG TO SUPPORT THE UNIT WEIGHT.3. PROVIDE A FLOOR DRAIN NEAR CHILLER FOUNDATION.

CHILLER INSTALLATION

NOTE

6. DIMENSIONS IN ( ) FOR LDF-S080S~LDF-S150S.

ModelDimension(mm) Load(ton)

M N O P Q R S T U V W XLDF-S010S 170 160 170 425 880 170 640 170 1.6 1.6 0.7 0.9LDF-S012S 170 160 170 425 1080 170 640 170 1.7 1.7 0.8 0.9LDF-S015S 170 160 170 657 1130 225 750 225 2.1 2.1 0.9 1.0 LDF-S018S 170 160 170 657 1330 225 750 225 2.3 2.3 1.0 1.1LDF-S021S 185 185 185 668 1350 200 750 200 2.7 2.7 1.1 1.4LDF-S024S 185 185 185 669 1550 200 750 200 2.8 2.8 1.2 1.4LDF-S028S 185 185 185 1102 1850 200 750 200 3.3 3.3 1.2 1.4LDF-S032S 185 185 185 1102 2050 200 750 200 3.5 3.5 1.3 1.5LDF-S036S 210 210 210 1115 1750 185 820 185 4.4 4.4 1.7 1.8LDF-S040S 210 210 210 718 1950 185 820 185 4.5 4.5 1.8 1.9LDF-S045S 210 210 210 830 2050 185 920 185 5.4 5.4 2.1 2.3LDF-S050S 210 210 210 830 2250 185 920 185 5.5 5.5 2.2 2.4LDF-S056S 200 200 200 1165 2000 180 1320 180 8.0 8.0 2.7 3.1LDF-S063S 200 200 200 1165 2250 180 1320 180 8.6 8.6 3.0 3.3LDF-S070S 200 200 200 1165 2450 180 1320 180 9.2 9.2 3.3 3.6LDF-S080S 200 200 200 1328 2400 130 1420 130 12.4 12.4 4.1 4.6LDF-S090S 200 200 200 1328 2700 130 1420 130 13.2 13.2 4.6 5.1LDF-S100S 200 200 200 1328 3000 130 1420 130 14.1 14.1 5.2 5.5LDF-S110S 200 200 200 0.0 3100 130 1520 130 15.6 15.6 6.4 6.7LDF-S120S 200 200 200 0.0 3400 130 1520 130 16.7 16.7 6.9 7.3LDF-S130S 200 200 200 0.0 3700 130 1520 130 17.6 17.6 7.5 7.9LDF-S140S 200 200 200 0.0 3700 130 1600 130 19.3 19.3 8.3 8.6LDF-S150S 200 200 200 0.0 3900 130 1600 130 20.4 20.4 8.7 9.0

Evaporator Waterbax cover

· Material: Glass wool, Non-flammable rubber sponge Glavanized steel plate · Insulation area includes pipings

Foundation Thermal Insulation

Note. U, V, W, X(ton) : Indicates the chiller’s weight that one ‘base contact’ bears.

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 16



Control Concept

GENERATOR SYSTEM ABNORMAL

NO

YES

YES

YES

YES

Cooling

Heating

Heating

63GH

26GE

NO

SVM1.2

NO

NO

Generator InputHIGH

Exhaust Gas Temp.HIGH

Generator Temp.HIGH

Generator LevelLOW

Cooling/HeatingMode Change S/W

GeneratorABNORMAL

CombustionOFF

Burner BlowerOFF

Refrigerant PumpOFF

5 min6~15 min

88B

88R

88A

Absorbent PumpOFF

15 sec.

CompleteSTOP

CHILLED(HOT) WATER SYSTEM ABNORMAL

NO

YES

YES

YES

Cooling

Heating

63GH

69CH

NO

SVM1.2

NO

Chilled Water Temp.LOW(Cooling)

Hot Water Temp.HIGH(Heating)

Chilled(Hot) WaterCut-off S/W

OFF


Chilled(Hot) Water SystemABNORMAL

CombustionOFF

Burner BlowerOFF

Refrigerant PumpOFF

88B

88R

88A

Absorbent PumpOFF

CompleteSTOP

COMBUSTION SYSTEM ABNORMAL

RE-START AFTER ABNORMAL CONDITION

NO

YES

YES

YES

Cooling

FD-PR

PGSLPGSH

PAS

NO

SVM1.2

NO

Ignition FAILUREABNORMAL

Gas PressureABNORMAL

Air PressureLOW


CombustionOFF

CombustionABNORMAL

Burner BlowerOFF

Refrigerant PumpOFF

5 min6~15 min

88B

88R

88A

51A, R, B

Absorbent PumpOFF

RUN BUTTON

Motors ABNORMAL

Protector RE-SET

Combustion System ABNORMAL

Motor Over-Load Relay RE-SET

Abnormal Causes Check and Removal

CompleteSTOP

RE-START

5 min6~15 min

88A

Absorbent PumpOFF

CompleteSTOP

5 min6~15 min

Absorbent PumpOFF

MOTORS ABNORMAL

NO

YES

YES

YES

Cooling

Heating

51A

51R

51B

NO

SVM1.2

NO

Absorbent PumpOVER-CURRENT

Rerfrigerant PumpOVER-CURRENT

Burner BlowerOVER-CURRENT


Motor ABNORMAL

CombustionOFF

Burner BlowerOFF

Refrigerant PumpOFF

88B

43T

88R

88A88A

Absorbent PumpOFF

Cooling

SVM1.2


Motor ABNORMAL

CombustionOFF

Burner BlowerOFF

Refrigerant PumpOFF

88B

88R

CompleteSTOP

Heating

Absorbent PumpOFF

Control Concept

STOP

RUN NORMAL OPERATION

PERIPHERAL EQUIPMENT ABNORMAL

Remote RUN

Remote SignalOFF

Remote Signal

Hot Water PumpON

Chilled Water PumpON

Cooling Water PumpON

RUN S/WSTOP

RUNBUTTON

Control ValveCLOSE Signal

MotorABNORMAL

MotorABNORMAL


1 min

1 min

5 min1~5 min

1~9 min

CombustionOFF

After20 sec.

Absorbent PumpOFF

CompleteSTOP

CompleteSTOP

Refrigerant PumpOFF

Burner BlowerON

Equipment Abnormal

Cooling Water PumpOFF

Chilled Water PumpOFF

Burner BlowerOFF

Absorbent pumpOFF

CompleteSTOP

NORMALOPERATION

Absorbent PumpRUN

Complete STOP

Combustion SystemABNORMAL

Combustion SystemABNORMAL

Refrigerant PumpON

NORMAL OPERATION

RUNBUTTON

L-CUT OFF H-CUT OFF

Hot Water Temp.HIGH

Cooling Water PumpInterlock OFF

Chilled Water PumpInterlock OFF

Flame DetectorNORMAL

Hot Water PumpINTERLOCK




Chilled Water PumpLOW

Chilled Water PumpINTERLOCK

Refrigerant PumpOFF Absorbent Pump

OFF

Absorbent PumpOFF

Gas Control V/VOPEN

Combustion OFF

Combustion OFF

After 20 Sec

Burner Blower OFF

Gas Control V/VOPEN

Chilled Water PumpINTERLOCK

Chilled(Hot) WaterCut-off S/W

ON

NO

RUN

Heating

Cooling

YES

YES YES

YES

YES

88B

6~15 min 5 min

88A

Burner Blower OFF

SVM1.2

88B

88R

Cooling

Heating

YES YES

YES

YES YES

YES

YES

88B

FD-PR

PR-CMG

PAS

33H

PGSLPGSH

PRCMG

Air PressureNORMAL

YES

Gas PressureNORMAL

Gas Control V/VOPEN

Ignition TransON

After 4 SecOFF

Gas Cut-Off V/VOPEN

YES

YES

30 sec

YES

YES

YES

REMOTE

Cooling Heating

51A51R51B

NO

NONO

52CO52CH

69CH

NO

NO

NO

NO

NO

52CO

52CH

NO NO

NO

NO

NO

NO

33L

Gas Control V/VCLOSE

IGNITION

NO

NO 33LO

FD-PR

Gas Cut-Off V/VOPEN

YES

TIG

NO

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.15 5:24 PM ̆ ` 18


Fuel Piping Piping Diagram

20 · 21

INTER LINING

STACKFLUE(INSULATED)DRAFTREGULATOR

DAMPER

CONDENSATEDRAIN

CONDENSATEDRAIN

FIRE PROOFMORTAR

1. Local regulations regarding exhaust of direct-fired burnersmust be adhered to. These instructions shown are typicaland are not meant to supersede local codes in any way.

2. The steel stack should be lined on the interior surface toprotect the stack from corrosion due to moisture in theexhaust gas.

3. The fiue and stack must be heat insulated and providedwith a condensate drain.

4. Do not connect the flue to an incinerator stack.5. Place the top of the stack within a sufficient distance from

the cooling towers to prevent contamination.6. Provide a barometric draft regulator or damper if fluctua-

tions or downdraft in static pressure are expected insidethe flue. Some means of controlling the flue draft may benecessary to insure that proper combustion efficiency ismaintained at all times.

7. If a common stack is to be used, exhaust must be prevent-ed from floeing into the unit(s) that are not in operation.

8. The draft pressure at the flue flange should be designedfor a maximum negative pressure of-5mmH2O.

GAS PRESSURE : 200mmAq

* The information is typical

· GAS

· OIL

GAS PRESSURE : 900~4,000mmAq

NOTE : 1. Field supply 2. Steel material

ModelA B C D E F G H K L M N P Q R S T

Dimension(mm)

LDF-S010S 15 110 110 - - - - - 330 360 38 130 - - 260 290 10LDF-S012S 15 110 110 - - - - - 330 360 38 130 - - 260 290 10LDF-S015S 15 110 110 - - - - - 330 360 38 130 - - 260 290 10LDF-S018S 15 110 110 - - - - - 330 360 38 130 - - 260 290 10LDF-S021S 15 120 120 - - - - - 360 390 38 120 120 - 360 390 12LDF-S024S 15 120 120 - - - - - 360 390 38 120 120 - 360 390 12LDF-S028S 15 120 120 - - - - - 360 390 38 120 120 - 360 390 12LDF-S032S 15 120 120 - - - - - 360 390 38 120 120 - 360 390 12LDF-S036S 15 103 103 103 - - - - 412 442 38 120 120 - 360 390 14LDF-S040S 15 103 103 103 - - - - 412 442 38 120 120 - 360 390 14LDF-S045S 15 115 115 115 - - - - 460 490 38 120 120 - 360 390 14LDF-S050S 15 115 115 115 - - - - 460 490 38 120 120 - 360 390 14LDF-S056S 15 139.5 139.5 139.5 - - - - 558 588 38 137 137 - 411 441 14LDF-S063S 15 139.5 139.5 139.5 - - - - 558 588 38 137 137 - 411 441 14LDF-S070S 15 139.5 139.5 139.5 - - - - 558 588 38 137 137 - 411 441 14LDF-S080S 15 113 113 113 113 113 - - 678 708 38 114.5 114.5 114.5 458 488 20LDF-S090S 15 113 113 113 113 113 - - 678 708 38 114.5 114.5 114.5 458 488 20LDF-S100S 15 113 113 113 113 113 - - 678 708 38 114.5 114.5 114.5 458 488 20LDF-S110S 15 119 120 120 120 120 120 120 958 988 38 112.5 112 112 449 479 24LDF-S120S 15 119 120 120 120 120 120 120 958 988 38 112.5 112 112 449 479 24LDF-S130S 15 119 120 120 120 120 120 120 958 988 38 112.5 112 112 449 479 24LDF-S140S 15 119 120 120 120 120 120 120 958 988 38 112.5 112 112 449 479 24LDF-S150S 15 119 120 120 120 120 120 120 958 988 38 112.5 112 112 449 479 24

Combustion System Diagram Flue Flange

Flue and Stack Arrangement

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 20

22 · 23

Piping Diagram

1. The range of equipment to be supplied by LS is enclosed by thetwo-dot chain line.(__ _ _ __)

2. For pipe diameter, pipe connections, etc., refer to the mechanicallayout diagram [OUTLINE].

3. The maximum operating pressure in the chilled and cooling wateris 8 kg/cm2G.

4. Concerning the temperature control of cooling water, refer toanother diagram.[CONTRAL OF COOLING WATER TEMPERATURE] (__ _ __)

5. Provide a bleeder in the cooling water line for control of coolingwater quality.


7. Install a strainer having a mesh of 10 or so.8. At the point of connection for smoke pipe or smoke stack.

1) Provide heat insulation to the smoke pipe, which should be equipped witha condensation drain.

2) Don't connect the smoke pipe to the smoke stack of an incinerator.3) When one smoke pipe on used for two of more units, a device has to be

provided to prevent the flow of exhaust into the one which is out of opera-tion.

4) If the static pressure inside the smoke pipe is subject to fluctuations, pro-vide a draft regulator.

9. To maintain a chilled water and cooling water, install a stop valvenear a inlet and outlet of each drain pipe, also observe followingan essential subjects.1) Provide a thermometer and pressure gauge at the outline and inlet of

cooling water and chilled water.2) Provide an air vent each of the chilled and cooling water lines at a higher

point than the headers for chilled water and cooling water.3) Install a drain in each of the chilled and cooling water lines at a higher

point between chiller and stop value on chilled water and cooling waterdrain pipe and drain to the drain ditch.

4) Install a chemical cleaning value on drain pipe between a chiller and inletand outlet stop value.

❋ GENERAL REMARK ON PIPE-LAYING WORK

Keep running a chilled water pump no.1,no.2 and an air conditioner continuouslyin order to protect freezing trouble during the dilution opreration.(about 15min.)

F

HC C

P T

P

P

T

T

P T

FLUE WATER SUPPLY

THERMOSTAT

COOLINGTOWER

TO DRAIN DITCH TO DRAIN DITCH

SUPPLY HEADER RETURN HEADER

WATERPUMP NO.2

CHILLED

PUMP NO.1WATER

CHILLED

AIRCONDITIONER

ABSORPTION CHILLER/HEATER

TANKEXPANSION

BY-PASS V/V

GAS

VALVE

PRESSURE

NAME

GAUGE

PUMP

FLOWMETER

TEMPERATURE

F

P

T

SYM.

CHEMICAL DRAIN V/V

STRAINER

CLEANSING V/V

SYM. NAME

GAUGE

in order to protect freezing trouble during the dilution opreration.(about 15min.)


MODEL UNIT PUW-50AU PUW-60AU PUW-70AU PUW-80AU

USRT 50 60 70 80

103/kcal/h 182 218 254 291

m3/h 30.3 36.3 42.4 48.4

mAq 3.0 3.3 2.4 2.5

A 3

m3/h 30.3 36.3 42.4 48.4

mAq 2.6 2.9 2.1 2.2

A 3

m3/h 50 60 70 80

mAq 4.4 5.2 3.9 4.2

A 4

3ø, 220V/380V, 50Hz/60Hz

kW 1.2(4.1/3.0A)

kW 0.2(1.1/1.13A)

kW 0.4(1.3A)

kW 0.37(1.0A) 0.74(2.3A)

kVA 0.3(0.9A)

A 9

mm2 3.5

kVA 5.6

mm 2,079 2.476

mm 1,490 1,699

mm 1,852

TON 3.2 3.4 3.8 4.0

TON 2.9 3.1 3.5 3.7

TON 2.9 3.1 3.5 3.7

ONE-SECTION

Nm3/h 14.5 17.4 20.3 23.2

Nm3/h 20.0 23.9 27.9 31.9

kg/h 14.0 16.9 19.7 22.4

kg/h 19.3 23.3 27.0 30.9

mm 190 x 110 270 x 150

mm 1,700 2,200

Nominal Cooling Capacity

Nominal Heating Capacity

Flow Rate

Pressure Drop

Connection Size

Flow Rate

Pressure Drop

Connection Size

Flow Rate

Pressure Drop

Connection Size

Phase/Volts/Hz

Absorbent Pump

Refrigerant Pump

Purge Pump

Burner Blower

Control Clrcuit

Total Current

Wire Size

Power

Lenght(L)

Width(W)

Height(H)

Operating

Max.Shipping

Total.Shipping

Shipment

Gas11,000kcal/Nm3(Cooling)

11,000kcal/Nm3(Heating)

Diesel10,960kcal/Nm3(Cooling)

10,960kcal/Nm3(Heating)

Flue Connection Size

Clearance For Tube Removal

ChilledWater

System

HotWater

System

CoolingWater

System

Dimension

Weight

Fuel

PowerSupply

NOTE1. 1usRT=3,024kcal/h2. Chilled water inlet/outlet temp. : 12˚C →7˚C3. Hot water inlet/outlet temp. : 54˚C →60˚C4. Cooling water inlet/outlet temp. : 32˚C →37.6˚C5. Chilled water flow rate : 0.605m3/h.RT6. Cooling water flow rate : 1m3/h.RT7. Maximum working water pressure : 5kg/cm2.G8. Standard gas pressure : 200mmAg9. Specifications subject to change without prior notice.

PUW-Series [50~80RT]

Piping Diagram


¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.15 5:25 PM ̆ ` 22


Cycle of Double-EffectSteam-Fired

Machine

Pur

ge v

alve

Vacuum Pump

Low Temp.Heat Exchanger

High Temp.Heat Exchanger

RefrigerantPump

AbsorbentPump

Cooling WaterInlet

Cooling WaterOutlet

Cooling Water

RefrigerantVapur

ChilledWaterOutlet

ChilledWater

Controller

Refrigerant

Steam

DilutedSolutionChilled

WaterInlet

Low TempGeneratorCondenser


IntermediateSolution


LI BR+H2O

H2O

SteamInlet

SteamControlValve

High TempGenerator

DrainOutlet

HeatRe-Claimer

SteamTrap

M

PurgeUnit

LSH-S045 LSH-S050 LSH-S056 LSH-S063 LSH-S070 LSH-S080 LSH-S090 LSH-S100 LSH-S110 LSH-S120 LSH-S130 LSH-S140 LSH-S150

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

1,583 1,758 1,969 2,216 2,462 2,813 3,165 3,517 3,869 4,220 4,572 4,924 5,275

272.2 302.4 338.7 381.0 423.4 483.8 544.3 604.8 665.3 725.8 786.2 846.7 907.2

5.2 5.5 4.6 6.2 8.1 4.7 6.4 8.4 6.2 7.9 9.8 8.0 9.8

8 10 12 14

450 500 560 630 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

10.3 11.2 7.1 9.4 12.1 8.4 11.1 14.3 8.8 10.9 13.4 12.3 14.6

10 12 14 16

3ø 220/380/440

13.7 26.8 25.8 34.6 46.7

3.5 8 14 22

9.0 17.7 17.0 22.8 30.7

3.4(10.2) 6.6(16.2) 7.5(25.0)

**** 2.0(6.8) 2.2(5.8) 5.5(14.5)

0.4(1.42) 1.5(4.0)

0.4(1.6) 0.75(2.4)

4,850 5,060 5,600 6,100 5,710 6,210 6,730 6,170 6,690 7,180 6,830 7,330

2,250 2,480 2,825 3,000 3,250

2,780 3,255 3,400 3,600 3,650

13.2 13.6 18.8 20.4 21.9 28.1 30.1 32.2 35.7 38.0 40.1 44.4 46.8

11.6 11.9 16.3 17.7 19.0 24.1 25.8 27.7 24.8 26.3 27.7 30.5 32.1

11.6 11.9 16.3 17.7 19.0 24.1 25.8 27.7 31.2 33.2 35.1 38.8 41.0

1,980 2,200 2,470 2,780 3,080 3,520 3,960 4,400 4,840 5,280 5,720 6,160 6,600

3 4 5 6

1 1/2 2 2 1/2 3

2 1/2 3 4

4,500 4,600 5,200 5,700 5,200 5,700 6,200 5,800 6,300 6,800 6,300 6,800

12 → 7

32 → 37.5


MODEL UNIT LSH-S010 LSH-S012 LSH-S015 LSH-S018 LSH-S021 LSH-S024 LSH-S028 LSH-S032 LSH-S036 LSH-S040

USRT 100 120 150 180 210 240 280 320 360 400

kW 352 422 528 633 739 844 985 1,125 1,266 1,407

˚C

m3/h 60.5 72.6 90.7 108.9 127.0 145.2 169.3 193.5 217.7 241.9

mAq 6.5 6.6 8.0 8.3 7.5 7.9 5.1 5.5 5.8 6.1

B(inch) 4 5 6

˚C

m3/h 100 120 150 180 210 240 280 320 360 400

mAq 3.9 4.4 6.5 7.7 5.6 6.2 10.9 12.1 8.7 9.4

B(inch) 5 6 8

3ø 220/380/440

A 9.6 9.6 13.7

mm2 3.5

kVA 6.3 6.3 9.0

kW 2.4(6.4) 2.4(6.4) 3.4(10.2)

kW *********

kW 0.2(1.13) 0.4(1.42)

kW 0.4(1.6)

mm 2,650 3,670 3,730 4,750 4,850

mm 1,775 1,880 2,110

mm 2,030 2,300 2,550

Ton 4.2 4.4 5.5 5.7 6.8 7.1 8.4 8.8 10.8 11.2

Ton 3.8 4.0 5.0 5.1 6.1 6.3 7.5 7.8 9.6 9.9

3.8 4.0 5.0 5.1 6.1 6.3 7.5 7.8 9.6 9.9

kg/h 440 528 660 792 924 1,060 1,230 1,410 1,580 1,760

B(inch) 2 2 1/2 3

B(inch) 1 1 1/2

B(inch) 1 1 1/2 2

mm 2,400 3,400 4,500


Temperature

Water Flow Rate

Pressure Drop

Connection Size

Temperature

Water Flow Rate

Pressure Drop

Connection Size

Phase/Volts/Hz

Total Current

Wire Size

Power

Absorbent Pump No.1

Absorbent Pump No.2

Refrigerant Pump

Purge Pump

Lenght(L)

Width(W)

Height(H)

Operating

Max.Shipping

Total.Shipping

Steam Flow Rate

Steam Inlet Connection Size

Drain Outlet Connection Size

Steam Control Valve

Clearance For Tube Removal

ChilledWater

System

CoolingWater

System

Dimension

Weight

Fuel

PowerSupply

12 → 7

32 → 37.5

Note "1. 1USRT=3,024ßª/h" 2. Max. working pressure : 8kg/cm2G 3. Alternate cooling water temperature range available upon request. 4. Total current is based on 380V/50Hz. 5. Specifications is subject to change without prior notice

LSH-S Type [100~1,500USRT]

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:24 PM ̆ ` 24

26 · 27LS Absorption Machine


(L)

(H)

(W)

A

B

C

D

E

F

MICOM

G

F

E

1. INDICATES THE POSITION OF ANCHOR BOLTS.

3. INSTALLATION AND SERVICE CLEARANCE ARE AS FOLLOWS:

2. ALL WATER, STEAM PIPING CONNECTOINS ARE WELDED ANSI 150 PSIGRF FLANGES. (FOR STEAM CONTROL VALVE, THE CONNECTION IS WELDED

NOTE.

DIN-PN25 FLANGE.)

OTHERS — 500mm

LONGITUDINAL DISTANCE — 1000mmCONTROL PANEL SIDE — 1200mm

TOP — 200mm

(H)

A

B

C

D

G

MICOM

(L) (W)

E

F

F

E



2. ALL WATER, STEAM PIPING CONNECTOINS ARE WELDED ANSI 150 PSIGRF FLANGES. (FOR STEAM CONTROL VALVE, THE CONNECTION IS WELD

NOTE.

DIN-PN25 FLANGE.)

OTHERS — 500mm

LONGITUDINAL DISTANCE — 1000mm CONTROL PANEL SIDE — 1200mm

TOP — 200mm




NOTE.

DIN-PN25 FLANGE.)

OTHERS — 500mm

LONGITUDINAL DISTANCE — 1000mm CONTROL PANEL SIDE — 1200mm

TOP — 200mm

ModelLength(L) Width(W) Hight(L) A B C D E F G(mm)

Dimension(mm) Nozzle Connection Size(B, inch)

LSH-S010 2650 1775 2030 5* 4* 4 5 1 2 2400LSH-S012 2650 1775 2030 5* 4* 4 5 1 2 2400LSH-S015 3670 1775 2030 5 4 4 5 1 2 3400LSH-S018 3670 1775 2030 5 4 4 5 1 2 3400LSH-S021 3730 1880 2300 6 5 5 6 1 2 1/2 3400LSH-S024 3730 1880 2300 6 5 5 6 1 2 1/2 3400LSH-S028 4750 1880 2300 8 6* 6 8 1 2 1/2 4500LSH-S032 4750 1880 2300 8 6* 6 8 1 2 1/2 4500LSH-S036 4850 2110 2550 8 6* 6 8 1 1/2 3 4500LSH-S040 4850 2110 2550 8 6* 6 8 1 1/2 3 4500LSH-S045 4850 2250 2780 10 8* 8 10 1 1/2 3 4500LSH-S050 4850 2250 2780 10 8* 8 10 1 1/2 3 4500LSH-S056 5060 2480 3255 12* 8* 8 12* 2 4 4600LSH-S063 5600 2480 3255 12* 8* 8 12* 2 4 5200LSH-S070 6100 2480 3255 12* 8* 8 12* 2 4 5700LSH-S080 5710 2825 3400 14* 10* 10 14* 2 1/2 5 5200LSH-S090 6210 2825 3400 14* 10* 10 14* 2 1/2 5 5700LSH-S100 6730 2825 3400 14* 10* 10 14* 2 1/2 5 6200

A : Cooling Water Inlet B : Chilled Water Inlet C : Chilled Water Outlet D : Cooling Water Outlet E : Drain Outlet F : Steam Inlet* The direction of inlet/outlet is opposite of the showen in the illustration above.

ModelLength(L) Width(W) Hight(L) A B C D E F G(mm)

Dimension(mm) Nozzle Connection Size(B, inch)

LSH-S110 6170 3000 3600 16 12 12 16 3 6 5800

LSH-S120 6690 3000 3600 16 12 12 16 3 6 6300

LSH-S130 7180 3000 3600 16 12 12 16 3 6 6800

LSH-S140 6830 3250 3650 16 14 14 16 3 6 6300

LSH-S150 7330 3250 3650 16 14 14 16 3 6 6800

A : Cooling Water Inlet B : Chilled Water Inlet C : Chilled Water Outlet D : Cooling Water Outlet E : Drain Outlet F : Steam Inlet




NOTE.

DIN-PN25 FLANGE.)

OTHERS — 500mm

LONGITUDINAL DISTANCE — 1000mmCONTROL PANEL SIDE — 1200mm

TOP — 200mm

Outline (LSH-S010~S100) Outline (LSH-S110~S150)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 26



CHAMBER COVEROF EVAPORATOR

REFRIGERANT PUMPDon’t insulate the motor of refrigerant pump REMOVAL PART



20mm FOR COLD SURFACE

NOTE.1. Use noncombustible insulation material

3. Total insulation area includes piping.2. Do not insulate motor of refrigerant pump.

4. The chiller is coated with a anticorrosive paint at the factory. Finish painting is typically performed in the field after insulating is complete.

Item Hot Surface(m2) Cold Surface(m2)Model 75mm 25mm 20mm

LSH-S010 5.3 3.0 4.4LSH-S012 5.3 3.4 4.4LSH-S015 7.5 3.7 5.9LSH-S018 7.5 4.2 5.9LSH-S021 8.4 4.7 6.8LSH-S024 8.4 4.8 6.8LSH-S028 11.2 5.8 8.4LSH-S032 11.2 6.0 8.4LSH-S036 12.7 6.5 9.9LSH-S040 12.7 6.7 9.9LSH-S045 13.4 6.9 11.2LSH-S050 13.4 7.2 11.2

Item Hot Surface(m2) Cold Surface(m2)Model 75mm 25mm 20mm

LSH-S056 16.1 8.8 13.9

LSH-S063 18.1 9.3 15.0

LSH-S070 19.9 9.7 16.1

LSH-S080 21.2 10.7 17.3

LSH-S090 23.3 11.2 18.5

LSH-S100 25.4 11.7 19.9

LSH-S110 27.2 13.5 12.7

LSH-S120 29.6 13.9 13.3

LSH-S130 31.9 14.3 13.8

LSH-S140 31.3 15.2 14.6

LSH-S150 33.8 15.5 15.1

"I" (ton) "J" (ton)

100

100

200

100

200

D E F

B"A"

C

G

"H"

HEIGHT200~250DRAIN DITCH

BASE CONTACT

D E

"F"

"J" (ton)

200

GG

200

A

C

100

100

B

H

"I" (ton)

LSH-S036~S150

LSH-S010~S032

ModelA B C D E F G H I J

Dimension(mm) Load(ton)

LSH-S010 210 210 420 1160 960 1360 220 1846 2.1 2.1 LSH-S012 210 210 420 1160 960 1360 220 1846 2.2 2.2 LSH-S015 210 210 420 1160 960 1360 220 2866 2.8 2.8 LSH-S018 210 210 420 1160 960 1360 220 2866 2.9 2.9 LSH-S021 235 235 470 1460 1260 1660 270 2816 3.4 3.4 LSH-S024 235 235 470 1460 1260 1660 270 2816 3.6 3.6 LSH-S028 235 235 470 1460 1260 1660 270 3836 4.2 4.2 LSH-S032 235 235 470 1460 1260 1660 270 3836 4.4 4.4 LSH-S036 470 270 1760 1560 1360 3716 120 175 5.4 5.4 LSH-S040 470 270 1760 1560 1360 3716 120 175 5.6 5.6 LSH-S045 470 270 1860 1660 1460 3716 120 175 6.6 6.6 LSH-S050 470 270 1860 1660 1460 3716 120 175 6.8 6.8 LSH-S056 470 270 2060 1860 1660 3706 130 170 9.4 9.4 LSH-S063 470 270 2060 1860 1660 4248 130 170 10.2 10.2 LSH-S070 470 270 2060 1860 1660 4746 130 170 11.0 11.0 LSH-S080 520 320 2300 2100 1900 4188 140 190 14.1 14.1 LSH-S090 520 320 2300 2100 1900 4686 140 190 15.1 15.1 LSH-S100 520 320 2300 2100 1900 5211 140 190 16.1 16.1 LSH-S110 520 320 2500 2300 2100 4286 140 190 17.9 17.9 LSH-S120 520 320 2500 2300 2100 4811 140 190 19.0 19.0 LSH-S130 520 320 2500 2300 2100 5311 140 190 20.1 20.1 LSH-S140 520 320 2700 2500 2300 4811 140 190 22.2 22.2 LSH-S150 520 320 2700 2500 2300 5311 140 190 23.4 23.4

NOTE.1. INDICATES THE POSITON OF ANCHOR BOLTS.

3. PROVIDE A FLOOR DRAIN NEAR CHILLER FOUNDATION.

2. THE FOUNDATION AND THE FLOOR MUST BE SUFFICIENTLYSTRONG TO SUPPORT THE UNIT WEIGHT.

4. ONLY IF FOUNDATION ANCHORING IS REQUIRED, ANCHOR BOLTS, NUTS AND WASHERS, SHALL BE SUPPLIED TOGETHER WITH CHILLER.ANCHOR BOLTS MUST BE FIXED ON THE FOUNDATION PRIOR TOCHILLER INSTALLATION

(HORIZONTAL LEVEL MUST BE BELOW THAN 2mm/1000mm)5. UNIT MUST BE LEVELED BEFORE STARTUP.

Foundation Thermal Insulation

Note. I, J(ton) : Indicates the chiller’s weight that one ‘base contact’ bears.

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 28


Piping Diagram


C

F

H

R

C

P T

P T

P T

P T

MVSTEAMCONTROL V/V

CHECK V/V

TO BOILERABSORPTION CHILLER

TO DRAIN DITCH

COOLINGWATERPUMP

TO DRAIN DITCH


BY-PASS V/V

CHILLEDWATER

PUMP NO.2

WATERPUMP NO.1

CHILLED

AIR CONDITIONER

MAIN STEAM PIPING

REDUCING V/V

SAFETY V/V

WATER SUPPLY

COOLINGTOWER

THERMOSTAT

F

P

SYM.

T

CLEANSING V/V

THERMOMETER

FLOWMETER

PUMP

GAUGE

NAME SYM.

STRAINER

DRAIN V/V

NAME

PRESSURE

CHEMICAL

TRAP

VALVE

*

1. The range of equipment to be supplied by LS is enclosed by thetwo-dot chain line.( )

2. For pipe diameter, pipe connections, etc., refer to the mechanicallayout diagram.[OUTLINE]

3. The maximum operating pressure in the chilled and cooling wateris 8Kg/cm G.

4. Concerning temperature control of cooling water, refer to anotherdiagram.[CONTROL OF COOLING WATER TEMPERATURE]( )

5. Provide separate chilled and cooling water pumps for eachabsorption machine.Flow rate of chilled and cooling water should confirm to the specifi-cations.


❋ GENERAL REMARKS ON PIPE-LAYING WORK

Cooling Water (Inlet Temperature)

Cooling Water Inlet Temp.(˚C) Chilled Water Outlet Temp.(˚C)26 27 28 29 30 31 32 33 34

70

80

90

100

110

120

130

Coo

ling

Cap

acity

(%)

Chilled Water(Outlet Temperature)

5 6 7 8 9 10 11 12 13

70

80

90

100

110

120

Coo

ling

Cap

acity

(%)

Piping Diagram Performance Graph

Cooling Water

Difference Between Inlet And Outlet Of Cooling Water Temperature(˚C)

Difference Between Inlet And Outlet Of Chilled Water Temperature( t)

∇

70

80

90

100

110

3 4 5 6 7 8 9

Chilled Water

2 3 4 5 6 7 8 9 10

70

80

90

00

10

20

Coo

ling

Cap

acity

(%)

How Chilled or Cooling Water Temperature can affect Cooling Capacity

How Temperature Difference affect( t) of Chilled or Cooling Water Temperature can after Cooling Capacity∇

* Condition

– Chilled Water Temperature : (Inlet) 12˚C → (Outlet) 7˚C

– Difference Between Inlet And Outlet Of Cooling Water

Temperature ( t) = 5.5˚C

∇

* Condition

– Difference Between Chilled Water Inlet and Outlet Temp.

( t) : 5.0˚C

– Cooling Water Temperature : (Inlet) 32˚C → (Outlet) 37.5˚C

∇

– Chilled Water Temp. : (Inlet) 12˚C → (Outlet) 7˚C

– Cooling Water Inlet Temperature : 32˚C

– Chilled Water Temp. : (Inlet) 12˚C → (Outlet) 7˚C

– Difference Between Inlet And Outlet Of Cooling Water

Inlet Temperature ( t) = 5.5˚C

∇

7. Install a strainer having a mesh of 10 or so.8. Install a steam stop v/v(*) to shut off a steam line to a chiller when

the chiller is not operate.9. Provide the inlet and outlet piping for chilled and cooling water with

the stop valve so thatthe piping can be cleaned easily.1) Install thermometers and pressure gauges at locations conve-

nient for servicing in the inlet and outlet water lines.2) Install air vent valves for water lines at a position above the

absorption machine.3) Install drain valves for water lines at a position bottom the

absorption machine, and then extend them up to the ditch. 4) For chemical cleaning, install the stop valves for cleaning

between the unit and each stop valve at the inlet or outlet.

Coo

ling

Cap

acity

(%)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.15 5:26 PM ̆ ` 30

33 · 33LS Absorption Machine 32 · 33


MODEL UNIT A-100A A-120A A-150A A-180A B-210A B-240A B-280A C-320A C-360A C-400A

usRT 100 120 150 180 210 240 280 320 360 400

˚C

m3/h 60.5 72.6 90.7 109 127 145 169 194 218 242

mAq 2.2 2.5 2.9 3.4 3.1 3.3 4.9 4.7 4.6 4.9

B(inch) 4 5 6

˚C

m3/h 100 120 150 180 210 240 280 320 360 400

mAq 3.6 3.7 4.8 5.3 4.7 5.1 7.3 6.0 6.3 6.7

B(inch) 5 6 8

3ø, 220V/380V, 50Hz/60Hz

kW(A) 2.0(6.8A) 3.0(9.5A)

kW(A) 0.3(1.16A) 0.4(1.42A)

kW(A)

kVA(A)

10.1 10.3 13.0

mm2

kVA 6.6 6.8 8.6

mm 2,630 3,650 3,730 4,340 4,440

mm 1,490 1,680 1,910

mm 2,180 2,410 2,750

Ton 4.1 4.3 5.5 5.8 6.8 7.1 8.0 9.8 10.2 10.6

Ton 3.7 3.9 5.0 5.2 6.0 6.3 7.0 8.5 8.9 9.2

Ton 3.7 3.9 5.0 5.2 6.0 6.3 7.0 8.5 8.9 9.2

kg/h 800 960 1,200 1,440 1,680 1,920 2,240 2,560 2,880 3,200

B(inch) 5 6 8

B(inch) 11/2 2

mm 2,400 3,400 4,100


Inlet Outlet

Flow Rate

Pressure Drop

Connection

Inlet Outlet

Flow Rate

Pressure Drop

Connection

Source

Abso Pump

Refr Pump

Purge Pump

Control Circuit

Total Current

Wire

Power

Length(L)

Width(W)

Heigth(H)

Operating

Max.Shipping

Total Shipping

Consumption

Steam Inlet Connection

Drain Outlet Connection

Tube Removal Space

CHILLEDWATER

COOLINGWATER

DIMENSION

WEIGHT

STEAM

ELECTRICPOWER

MOTERPOWER

12 → 7

32 → 39.5

0.4(1.6A)

0.3(0.5A)

3.5

D-450A D-500A E-550V E-620V E-690V E-770V F-850V F-950V G-1050V G-1150V G-1300V G-1400V

450 500 550 620 690 770 850 950 1,050 1,150 1,300 1,400

272 302 333 375 417 466 514 575 635 696 786 847

4.6 4.6 5.5 5.8 3.3 3.5 3.5 3.6 3.9 4.0 6.6 6.6

8 10 12

32 → 39.5 32 → 40.2

450 500 498 561 624 697 769 860 950 1,041 1,177 1,267

5.9 6.2 7.2 7.6 10.8 11.3 9.9 10.3 8.3 8.8 13.8 14.2

10 12 14 16

3ø, 220V/380V, 50Hz/60Hz

3.0(9.5A) 4.5(19.5A) 5.5(20A)

0.4(1.42A) 1.5(4.0A)

0.4(1.6A) 0.75(2.5A)

13.0 13.9 16.5 26.5 27.0

3.5 8

8.6 9.2 10.9 17.4 17.8

4,440 5,810 7,040 7,250 7,360 8,600

1,910 2.100 2,500 2,800

2,970 3,230 3,600 4,200

12.1 12.6 20.0 20.8 24.1 25.3 27.8 28.6 37.2 38.0 42.4 43.2

10.5 10.8 17.3 18.1 21.0 22.2 23.4 24.2 18.2 18.6 20.0 20.4

10.5 10.8 17.3 18.1 21.0 22.2 23.4 24.2 32.2 33.0 36.4 37.2

3,600 4,000 4,400 4,960 5,520 6,160 6,800 7,600 8,400 9,200 10,400 11,200

8 10 12 14

2 1/2 3 4

4,100 5,320 6,560 7,910

12 → 7

0.3(0.5A)

Cycle of Single-EffectSteam-Fired

Machine

DrainOutlet

Pur

ge v

alve

Vacuum Pump

HeatExchanger

RefrigerantPump

AbsorbentPump

Cooling WaterInlet

Cooling WaterOutlet

Cooling Water

Steam

M

DilutedSolution

ChilledWaterOutlet

ChilledWater

Controller

Refrigerant

ChilledWater

Inlet

SteamInlet

ControlValve

Condenser



Li Br+H2O

H2O

PurgeUnit

A / V Type [100~1,400USRT]

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 32


ModelL W H A B C D E F G

Overall Dimension(mm) Nozzle Connection(A)

A-100A 2,830 1,560 2,220 125 100 100 125 125 40 2,400120A 2,830 1,560 2,220 125 100 100 125 125 40 2,400150A 3,850 1,560 2,220 125 10 100 125 125 40 3,400180A 3,850 1,560 2,220 125 10 100 125 125 40 3,400

B-210A 3,930 1,750 2,450 150 125 125 150 150 40 3,400240A 3,930 1,750 2,450 150 125 125 150 150 40 3,400280A 4,540 1,750 2,450 150 125 125 150 150 40 3,400

C-320A 4,640 1,980 2,790 200 150 150 200 200 50 4,100360A 4,640 1,980 2,790 200 150 150 200 200 50 4,100400A 4,640 1,980 2,790 200 150 150 200 200 50 4,100

D-450A 4,640 1,980 3,010 250 200 200 250 200 65 4,100500A 4,640 1,980 3,010 250 200 200 250 200 65 4,100

E-550V 6,010 2,170 3,270 300 250 250 300 250 65 4,720620V 6,010 2,170 3,270 300 250 250 300 250 65 4,720690V 7,240 2,170 3,270 300 250 250 300 250 65 5,960770V 7,240 2,170 3,270 300 250 250 300 250 65 5,960

F-850V 7,450 2,570 3,640 350 250 250 350 300 80 6,200950V 7,450 2,570 3,640 350 250 250 250 300 80 6,200

G-1050V 7,560 2,870 2,850 400 300 300 400 350 100 6,2001150V 7,560 2,870 2,850 400 300 300 400 350 100 6,2001300V 8,800 2,870 2,850 400 300 300 300 350 100 7,5301400V 8,800 2,870 2,850 400 300 300 400 350 100 7,530

A : Cooling water outlet, B : Chilled water outlet, C : Chilled water inlet, D : Cooling water inlet, E : Steam inlet, F : Drain outlet, G : Tube removal clearance* The direction of inlet/outlet is opposite of the showen in the illustration above.

C-320AS ~ G-1400VSA-100AS ~ B-280AS

ModelA B C D E F G H I W


A-100A 1,845 1,000 1,300 320 150 220 1,200 160 – 2.1120A 1,845 1,000 1,300 320 150 220 1,200 160 – 2.2150A 2,865 1,000 1,300 320 150 220 1,200 160 – 2.8180A 2,865 1,000 1,300 320 150 220 1,200 160 – 2.9

B-210A 2,815 1,300 1,600 370 150 270 1,500 185 – 3.4240A 2,815 1,300 1,600 370 150 270 1,500 185 – 3.6280A 3,425 1,300 1,600 370 150 270 1,500 185 – 4.0

C-320A 3,305 1,300 1,600 370 150 270 1,500 125 120 4.9360A 3,305 1,300 1,600 370 150 270 1,500 125 120 5.1400A 3,305 1,300 1,600 370 150 270 1,500 125 120 5.3

D-450A 3,305 1,500 1,800 370 150 270 1,700 125 120 6.1500A 3,305 1,500 1,800 370 150 270 1,700 125 120 6.3

E-550V 4,472 1,700 1,900 420 100 320 1,800 150 120 10.0620V 4,472 1,700 1,900 420 100 320 1,800 150 120 10.4690V 5,706 1,700 1,900 420 100 320 1,800 150 120 12.1770V 5,706 1,700 1,900 420 100 320 1,800 150 120 12.7

F-850V 5,506 2,200 2,440 500 120 400 2,340 130 240 13.9950V 5,506 2,200 2,440 500 120 400 2,340 130 240 14.3

G-1050V 5,306 2,160 2,400 640 120 540 2,300 170 300 18.61150V 5,306 2,160 2,400 640 120 540 2,300 170 300 19.01300V 6,556 2,160 2,400 640 120 540 2,300 170 300 21.21400V 6,556 2,160 2,400 640 120 540 2,300 170 300 21.6

NOTE1. Indicates the position of anchor bolts.2. All external water pipings are to be provided

with welded ANSI 150# RF flanges by the customer.3. Indicates the position of the power supply

connection to control panel. (DIAMETER 32mm)4. Indicates the position of the power supply 5. Indicates the position of the power supply 6. Indicates the position of the power supply 7. Indicates the position of the power supply

Outline Foundation

A / V Type [100~1,400USRT]

Note. W(ton) : Indicates the chiller’s weight that one ‘base contact’ bears.

Center Point for Checking Dimension

Center Point for Checking Dimension

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 34


Piping Diagram

1. __ _ _ __ WORK OUTSIDE THE AREA SURROUNDED BY THISLINE SHALL HAVE TO BE EXECUTED AT THE EXPENSE OFTHE OWNER.

2. REFER TO THE EXTERNAL DIMENSIONS DIAGRAM ANDSPECIFICATION TABLES FOR PLPE CONNECTIONS ANDDIAMERER.

3. STANDARD SUPPLY STEAM PRESS. IS 1.0~1.5 KG/CM2 G. AREDUCING VALVE WHICH BLOWING 1.9 KG/CM G SHOULDBE LOCATED NEAR THE MACHINE AS IN ABOVE DIAGRAM IFTHE SUPPLY PRESS. IS HIGHER THAN 1.5 KG/CM2 G. A PIPESHOULD BE EXTENDED FROM THIS SAFETY VALVE TORELEASE EXCESS STEAM OUTDOORS.

4. EVEN IF A REDUCING VALVE IS NOT REQUIRED, A STRAIN-ER, PRESSURE GAUGE AND DRAIN TRAP SHOULD BE PRO-VIDED FOR EACH MACHINE NEAR THE STEAM INLET.

5. THE BACK PRESSURE IN THE STEAM DRAIN LINE SHOULDBE LIMITED TO LESS THAN 2 mAq.

6. DETERMINE THE LOCATIONS OF THE CHILLED WATERPUMPS AND THE COOLING WATER PUMPS IN DUE CONSID-ERATION OF THE PUMPS HYDROSTATIC HEAD AND LIFT.

THE MACHINE SHOULD NOT BE SUBJECT TO A PRESSURELARGER THAN 8 kg/cm2 G. AT ANY WATER HEADER.

7. CONCERNING THE TEMPERATURE CONTROL OF COOLINGWATER REFER TO “CONTROL OF COOLING WATER TEM-PERATURE”.

8. PROVIDE A THERMOMETER AND PRESSURE GAUGE ATTHE OUTLET AND INLET OF COOLING WATER AND CHILLEDWATER.

9. PROVIDE AN AIR VENT IN EACH OF THE CHILLED ANDCOOLING WATER LINES AT A POINT HIGHER THAN THEHEADERS FOR CHILLED WATER AND COOLING WATER.

10. LAY PIPE FROM THE COVER OF THE EVAPORATOR ANDABSORBER TO THE DRAIN DITCH.

11. PROVIDE A BLEEDER IN THE COOLING WATER LINE FORCONTROL OF WAER QUALITY.

12. THERE SHOULD BE A SUFFICIENT CLEARANCE FORACCESS TO THE ABSORBER, EVAPRATOR AND CONDERS-ER TO FACILITATE INSPECTION AND CLEANING WORK.

13. ALL EXTERNAL WATER PIPING ARE PROVIDED WITH ANSI#150 LB RF. WELDING FLANGES BY THE CUSTOMER.


For optimized control, LS Double-Effect Absorption Machine adopts PID control. As a combination of Proportional,Integral and Differential Control, PID Control allow better load tracing and faster response. PID action allows smoothcontrol by removing Off-Set and Hunting of chilled water outlet temp. which are demerits of Proportional action. Integralaction correct Off-Set automatically and Differential Action responses quickly against external influence. Comparing totypical chillers which are controlled by Proportional Control, microprocessor-controlled LS Absorption machine enables.

1. Constant Temperature control by removeing Off-Set of Chilled Outlet temperature.Therefore, LS Absorption Machine provide excellent process cooling solution in semiconductor, chemical, and pharmaceutical facili-ties and air conditioning solution in Intelligent Building.

2. Energy Saving because of lower gas consumption which is generated by the reduction of chilled water outlet temperature Hunting.3. Higher efficiency at partial load because the flow rate of absorbent solution is controlled by digital PID and Inverter.

Test Condition1. Chilled water outlet temp. : 7°C (Constant) 2. Cooling water inlet temp. : depends on out-air temp.3. Load/Cooling water inlet temp. : 100%/32°C, 50%/27°C, 30%/25°C

Partial Load Characters (Comparing to Conventional Control)

ConventionalControlConventionalControlConventionalControl

Piping Diagram PID Control

Cooling Capacity Rate(%)

Fue

l Con

sum

ptio

n R

ate(

%)

Pow

er C

onsu

mpt

ion

Rat

e(%

)

Cooling Capacity Rate(%)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 36



38 · 39

MODEL UNIT LWM-W003 LWM-W004 LWM-W005 LWM-W007 LWM-W008 LWM-W010 LWM-W012 LWM-W014 LWM-W016 LWM-W019 LWM-W021 LWM-W024

˚C 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7

USRT 28 30 38 40 47 50 61 65 75 80 94 100 113

m3/h 17.1 18.1 22.8 24.2 28.5 30.2 37.0 39.3 45.6 48.4 57.0 60.5 68.3

mAq 2.2 2.5 2.9 3.3 5.3 6.0 6.5 7.3 6.7 7.6 5.8 6.5 5.8

B(INCH)

˚C

m3/h 37.4 39.4 49.8 52.5 62.3 65.7 81.0 85.4 99.7 105.1 124.6 131.3 149.5

mAq 2.5 2.8 3.6 44.0 6.3 7.0 2.3 2.6 2.8 3.1 4.3 4.8 5.1

B(INCH)

˚C

m3/h 8.0 8.4 10.7 11.2 13.4 14.0 17.4 18.2 21.4 22.4 26.7 28.0 32.0

mAq 1.1 1.2 1.2 1.3 2.6 2.9 0.8 0.9 0.9 1.0 2.1 2.3 2.2

B(INCH)

B(INCH)

V

A

mm2

kVA

kW(A)

kW(A)

kW(A)

kW(A)

mm

mm

mm

ton

ton

mm

13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8

120 132 140 151 160 179 190 198 210 226 240

72.6 79.7 84.7 91.1 96.8 108.2 114.9 119.6 127.0 136.7 145.2

6.5 6.0 6.8 6.4 7.2 5.9 6.6 5.8 6.5 5.9 6.7

157.6 174.4 183.9 199.4 210.2 236.8 249.6 261.7 275.8 299.1 315.2

5.7 3.6 4.0 4.1 44.6 7.3 8.1 7.8 8.7 5.7 6.3

33.6 37.4 39.2 42.7 44.8 50.7 53.2 56.1 58.8 64.1 67.2

2.4 2.2 2.4 2.4 2.6 4.4 4.8 4.3 4.7 4.4 4.8

Chilled Water Temp

Cooling Capacity

Flow rate

Pressure drop

Connection size

Water in/out temp

Flow rate

Pressure drop

Connection size

Water in/out temp

Flow rate

Pressure drop

Connection size

Connection size of control valve

Source

Total current

Wire size

Elecric consmption

Abso pump No.1

Abso pump No.2

Refer pump

Purge pump

Length(L)

Depth(W)

Height(H)

Operating weight

Shipping Weight

Tube removal space

Chilledwater

Collingwater

Motorpower

Dimension

Weight

Hotwaterciruit

Bectricity

2 1/2 3 4 5 6

1 1/2 2 1/2 3 4

1 1/2 2 2 1/2 3 4

6.7 9.4 9.7 8.9

4.4 6.2 6.4 5.9

1.2(4.1) 2.0(6.8) 2.2(6.0)

********

0.4(1.0)

2,020 2,520 2,547 3,567 3,627 4,630 4,784

1,344 1,346 1,305 1,476 1,539

1,952 1,965 2,150 2,330

2.1 2.3 2.7 4.1 4.3 5.3 5.7 6.9 7.2 8.4 8.9 10.8

1.8 1.9 2.3 3.5 3.7 4.6 4.9 5.8 6.1 7.1 7.5 9.1

2,000 2,400 3,400 4,500

0.2(1.13) 0.2(1.13) 0.4(1.42)

3ø 220/ 380/440

3.5

3 5 6 8

31 → 36.5

95 → 80

12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8

254 270 292 310 320 340 358 380 405 430 452 480 509 540 565 600

153.8 163.3 176.6 187.5 193.7 205.6 216.4 229.8 244.9 260.1 273.4 290.3 307.6 326.6 341.7 362.9

5.7 6.4 6.6 7.4 6.4 7.2 5.8 6.5 8.1 9.1 10.8 12.2 6.0 6.8 8.0 9.0

336.4 354.4 386.3 407.2 423.7 446.6 473.5 499.1 535.8 564.8 598.1 630.5 672.9 709.3 747.6 788.1

6.3 7.0 7.2 8.0 7.7 8.6 5.8 6.4 7.8 8.7 10.2 11.3 5.9 6.6 7.7 8.5

72.1 75.6 82.8 86.8 90.8 95.2 101.5 106.4 114.8 120.4 128.2 134.4 144.2 151.2 160.2 168.0

4.4 4.8 4.4 4.8 4.4 4.8 2.0 2.2 2.7 3.0 3.6 4.0 2.5 2.8 3.4 3.7

LWM-W027 LWM-W031 LWM-W034 LWM-W038 LWM-W043 LWM-W048 LWM-W054 LWM-W060 LWM-W067 LWM-W074 LWM-W081 LWM-W088 LWM-W095 LWM-W102

6 8 10 12

8.9 20.9 19.9 25.7 38.0

3.5 5.5 8.0 14.0

5.9 13.8 13.1 16.9 25.0

2.0(6.0) 3.0(11.2) 4.5(17.0)

***** 2.0(6.8) 2.2(5.8) 5.5(14.5)

0.4(1.42) 1.5(4.0)

0.4(1.0) 0.75(2.0)

4,784 4,789 4,931 5,473 5,971 5,616 6,114 6,639 6,346 6,871 7,371 7,050 7,550

1,539 1,652 2,015 2,195 2,680 2,970

2,630 2,886 3,260 3,680 3,920 4,040

11.3 13.4 14.0 19.3 20.9 22.0 27.5 29.5 31.7 35.7 38.2 40.5 45.0 47.4

9.5 11.2 11.7 16.2 17.6 18.5 22.7 24.4 26.3 30.1 32.3 34.2 37.8 39.8

4,500 4,600 5,200 5,700 5,200 5,700 6,200 5,800 6,300 6,800 6,500 7,000

3ø 220/ 380/440

8 10 12 14 16

31 → 36.5

95 → 80

12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8 12-7 13-8

631 670 697 740 763 810 829 880 895 950 961 1,020

381.6 405.2 421.5 447.6 461.4 489.9 501.2 532.2 541.1 574.6 581.0 616.9

10.6 11.9 7.9 8.9 10.1 11.4 12.5 14.1 10.2 11.5 12.7 14.3

834.9 880.0 922.1 972.0 1.009 1.064 1.097 1.156 1.184 1.248 1.271 1.340

10.0 11.1 6.2 6.9 7.7 8.6 9.5 10.6 8.8 9.8 10.4 11.6

178.9 187.6 197.6 207.2 216.3 226.8 235.0 246.4 253.7 266.0 272.4 285.6

4.5 4.9 1.3 1.4 1.6 1.8 2.0 2.2 1.7 1.9 2.0 2.2

4 5 6 8

4 5 6 8

Cycle of Single-EffectSteam-Fired

Machine Pur

ge v

alve

Vacuum Pump

HeatExchanger

RefrigerantPump

AbsorbentPump

Cooling WaterInlet

Cooling WaterOutlet

Cooling Water

Hot water

DilutedSolution

ChilledWaterOutlet

ChilledWater

Controller

Refrigerant

ChilledWater

Inlet

HotWaterInlet

HotWaterOutlet

Condenser



Li Br+H2O

H2O

PurgeUnit

LWM-W Type [30~1,020USRT]

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 38


LWM-W Type [30~1,020USRT]

MICOM

G

(W)(H

)

F

E

D

C

B

A

F

E

D

C

A

B

F*

E*

D*

C*

A*

B*

THE CONNECTION IS WELDED DIN-PN10 FLANGE.)PSIG RF FLANGES. (FOR HOT WATER CONTROL VALVE,



NOTE.

CONTROL PANEL SIDE - 1200mm LONGITUDINAL DISTANCE - 1000mm

TOP - 200mm OTHERS - 500mm

4. WATER PIPING DIRECTIONS ARE DIFFER FROM EACH MODEL.


ModelLength(L) Depth(W) Height(H) A B C D E F G(mm)


LWM-W003 2020 1394 1952 3 2 1/2* 2 1/2* 1 1/2* 3 1 1/2* 2000LMW-W004 2020 1396 1965 3 2 1/2* 2 1/2* 1 1/2* 3 1 1/2* 2000LWM-W005 2520 1396 1965 3 2 1/2* 2 1/2* 2 1/2* 3 2 1/2* 2400LWM-W007 2547 1355 2150 5 3 3 2 1/2* 5 2 1/2* 2400LWM-W008 2547 1355 2150 5 3 3 2 1/2* 5 2 1/2* 2400LWM-W010 3567 1355 2150 5* 4 4 3 5 3 3400LWM-W012 3567 1355 2150 5* 4 4 3 5 3 3400LWM-W014 3627 1526 2330 6* 4 4 3 6 3 3400LWM-W016 3627 1526 2330 6* 4 4 3 6 3 3400LWM-W019 4630 1526 2330 8* 5* 5 4 8 4 4500LWM-W021 4630 1526 2330 8* 5* 5 4 8 4 4500LWM-W024 4784 1575 2630 8* 6* 6 4 8 4 4500LWM-W027 4784 1575 2630 8* 6* 6 4 8 4 4500LWM-W031 4789 1702 2886 10* 6* 6 5 10 5 4500LWM-W034 4789 1702 2886 10* 6* 6 5 10 5 4500LWM-W038 4930 2015 3190 12* 8* 8 6* 12 6 4600LWM-W043 5473 2015 3190 12* 8* 8 6* 12 6 5200LWM-W048 5971 2015 3190 12* 8* 8 6* 12 6 5700LWM-W054 5616 2195 3640 14* 8* 8 8* 14 8 5200LWM-W060 6114 2195 3640 14* 8* 8 8* 14 8 5700LWM-W067 6639 2195 3640 14* 8* 8 8* 14 8 6200LWM-W074 6346 2680 3840 16 10 10* 8* 16 8* 5800LWM-W081 6871 2680 3840 16 10 10* 8* 16 8* 6300LWM-W088 7371 2680 3840 16 10 10* 8* 16 8* 6800LWM-W095 7070 2890 4040 16 12 12* 8* 16 8* 6300LWM-W102 7570 2910 4040 16 12 12* 8* 16 8* 6800

A : Cooling water inlet B : Chilled water inlet C : Chilled water outlet D : Hot water inlet E : Cooling water outlet F : Hot water outlet G : Space for tube removal* The direction of inlet/outlet is opposite of the showen in the illustration above.

NOTE.1. INDICATES THE POSITON OF ANCHOR BOLTS.2. THE FOUNDATION AND THE FLOOR MUST BE SUFFICIENTLY STRONG TO SUPPORT THE UNIT WEIGHT.3. PROVIDE A FLOOR DRAIN NEAR CHILLER FOUNDATION.4. ONLY IF FOUNDATION ANCHORING IS REQUIRED, ANCHOR BOLTS, NUTS AND WASHERS, SHALL BE SUPPLIED TOGETHER WITH CHILLER. ANCHOR BOLTS MUST BE FIXED ON THE FOUNDATION PRIOR TO CHILLER INSTALLATION.5. UNIT MUST BE LEVELED BEFORE STARTUP. (HORIZONTAL LEVEL MUST BE BELOW THAN 2mm / 1000mm)

W (ton) W (ton)

BASE CONTACT

W (ton) W (ton)

ModelA B C D E F G H W


LWM-W003 1,471 900 1,120 195 110 95 1,020 97.5 1.10LWM-W004 1,471 900 1,120 195 110 95 1,020 97.5 1.15LWM-W005 1,971 900 1,120 195 110 95 1,020 97.5 1.35LWM-W007 1,926 820 1,120 245 150 145 1,020 125 2.05LWM-W008 1,926 820 1,120 245 150 145 1,020 125 2.15LWM-W010 2,946 820 1,120 245 150 145 1,020 125 2.65LWM-W012 2,946 820 1,120 245 150 145 1,020 125 2.85LWM-W014 2,816 980 1,280 370 150 270 1,180 185 3.45LWM-W016 2,816 980 1,280 370 150 270 1,180 185 3.60LWM-W019 3,836 980 1,280 370 150 270 1,180 185 4.20LWM-W021 3,836 980 1,280 370 150 270 1,180 185 4.45LWM-W024 3,716 1,040 1,340 370 120 270 1,240 125 5,40LWM-W027 3,716 1,040 1,340 370 120 270 1,240 125 5.65LWM-W031 3,716 1,160 1,460 370 120 270 1,360 125 6.70LWM-W034 3,716 1,160 1,460 370 120 270 1,360 125 7.00LWM-W038 3,706 1,600 1,900 370 130 270 1,800 120 9.65LWM-W043 4,248 1,600 1,900 370 130 270 1,800 120 10.45LWM-W048 4,746 1,600 1,900 370 130 270 1,800 120 11.00LWM-W054 4,188 1,800 2,100 420 140 320 2,000 140 13.75LWM-W060 4,686 1,800 2,100 420 140 320 2,000 140 14.75LWM-W067 5,211 1,800 2,100 420 140 320 2,000 140 15.85LWM-W074 4,286 2,100 2,400 420 140 320 2,300 140 17.85LWM-W081 4,811 2,100 2,400 420 140 320 2,300 140 19.10LWM-W088 5,311 2,100 2,400 420 140 320 2,300 140 20.25LWM-W095 4,811 2,300 2,600 420 140 320 2,500 140 25.00

Outline Foundation

Note. W(ton) : Indicates the chiller’s weight that one ‘base contact’ bears.

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 40


Piping Diagram

1. The range of equipment tobe supplied by LG is enclosed by thetwo-dot chain line.(__ _ _ __)

2. For pipe diameter , pipe connections, etc. refer to the mechanicallayout diagram. [OUTLINE]

3. The maximum operating pressure in the chilled, cooling and hotwater is 8Kg/cm2 G. (For LWM-W003-W005 5Kg/cm2 G is standard.)

4. Cincerning temperature control of cooling water, refer to anotherdiagram.[CONTROL OF COOLING WATER TEMPERATURE] (__ _ _ __)

5. Provide separate chilled, cooling and hot water pumps for eachabsorption machine.Flow rate of chilled, cooling and hot water should confirm to thespecifications.

6. Provide a bleeder in the cooling and hot water line for control ofcooling water quality.

7. Install a strainer having a mesh of or so.8. Provide the inlet and outlet piping for chilled, cooling and hot water

with the stop walve so that the piping can be cleaned easily.1) install thermometers and pressure guages at locations convernient for

servicing in the inlet and outlet water lines.

2) Install air vent valves for water lines at a position above the absorption

machine.

3) install drain valves for water lines at a Position bottom the absorption

machine, and then ectend them up to the ditch.

4) For chemical cleaning, install the stop valves for cleaning between the

unit and each stop walve at the inlet or outlet.



VALVE

PRESSURE

NAME

GAUGE

PUMP

FLOWMETER

TEMPERATURE

F

P

T

SYM.

CHEMICAL DRAIN V/V

STRAINER

CLEANSING V/V

SYM. NAME

GAUGE

ABSORPTION CHILLER

HOT WATER

F

C C

BYPASS V/V

TP

P T

P T

P T

P T

TP

CONDITIONERAIR

H

CHILLEDWATER

PUMP NO.1CHILLEDWATER

PUMP NO.2


TO DRAIN DITCH TO DRAIN DITCH

THERMOSTAT

WATER SUPPLY

COOLING TOWER

HOT WATER PUMP

THREE WAYVALVE

HOT WATER INLETHOT WATER OUTLET

The cooling water of an open-type recycling coolingtower lowers temperature of the cooling water usingvaporized latent-heat and is reused. In this case, thewater is evaporated and dissolved salts,Hardness materials, sulfate ion, etc. in the water willincrease. Namely, condensation phenomena of suchmaterials occurs in the water, and water quality will grad-

ually be degraded. As the water and air always come incontact with each other in the cooling tower, sulfurous acidgas, dust, sand, etc. in the atmos-phere will mix into the water, further degrading the waterquality. in the cooling water system, problems with waterare caused by these factors. Typical problems are corrosion, scales and slimes.

Standard Value of water Quality

ITEMSCooling Water

One-pass or Circulating

Make-up water

Circulating water Make-up Corrosion Scale

Chilled Water Tendency

pH(25˚C) 6.5~8.0 6.5~8.0 6.5~8.0 6.5~8.0 O OElectrial cinductivity (25˚C µs/cm) Max.800 Max.200 Max.500 Max.200 O OAlkalinity (ppm) Max.100 Max.50 Max.100 Max.50 OTotal hardness (ppm) Max.200 Max.50 Max.100 Max.50 OChlorine ion (ppm) Max.200 Max.50 Max.100 Max.50 OSulfuric acid ion (ppm) Max.200 Max.50 Max.100 Max.50 OTotal ion (ppm) Max.1.0 Max.0.3 Max.1.0 Max.0.3 OSulfur ion (ppm) No trace No trace No trace No trace OAmmonium ion (ppm) Max.1.0 Max.1.0 Max.0.5 Max.0.2 OSilica (ppm) Max.50 Max.30 Max.50 Max.30 OFree carbonic acid (ppm) ******* ***** Max.1.0 Max.1.0 O

Control of Cooling Water

Ensure that the cooling water temperature does not fall more than10˚C below the design temperature. For example, if the coolingwater inlet temperature is 32˚C, ensure that the cooling watertemperature does not fall below 22˚C. During starting, however,a lower temperature is permissible until the machine reaches therated capacity.

1. Be sure to start and stop the fan by means of the cooling water thermostat.2. Cooling water thermostat setting value (When the cooling water inlet temp. is 32˚C) 22˚C and below ... off, 25˚C and above ... on

PIPING DIAGRAM Quality Control of Cooling Water

Control of Cooling Water Temperature

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 42

Interface Connection Diagran


RUN & STOP FLOW DIAGRAMOF AUXILIARY EQUIPMENT

RUN & STOP FLOW DIAGRAMOF AUXILIARY EQUIPMENT

Direct-Fired Type Steam-Fired & Hot-Water Fired Type

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 44

46 · 47

Schematic Diagram


Direct-Fired Type (LDF-S010S~S150S)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 46

48· 49

Schematic Diagram


Steam-Fired Type (LSH-S010~S150)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 48

50 · 51

Schematic Diagram


Hot-Water Fired Type (LWM-W003~W102)

¨ … ‰̃‡̂ ¿– ˆ ` 2005.11.9 2:25 PM ̆ ` 50

Documents

Service information center. LS Absorption Chiller Catalog.pdf · Head Office ... LS. LS Cable is No. 1 cable maker in Korea and its business fields are telecommunication, ... Absorption