Specifications in the catalogue are subject to change without notice. AR-1012 Printed in Korea

Transcription

1 Seoul office : 1094, Hwagok-6Dong, Kangseo-Ku, Seoul, Korea (ZIP code : ) Head office : 1Dongsan-lee, Tangjung-myun, san-chi, Chungnam, Korea Tel : Fax : sales@century.co.kr Visit us at : Specifications in the catalogue are subject to change without notice. R-1012 Printed in Korea

2 Direct-fired Double effect bsorption Chiller & Heater

3 Direct_Fired Double effect bsorption Chiller & Heater Realization of efficiency improvement and miniaturization Through high performance of heat transfer tubes, optimization of tube arrangement, use of high efficiency solution heat exchanger, adoption of refrigerant solution heat exchanger, and improvement of solution flow, it is made compact in a way that reduces the area for installation by 17% and the weight by 10%, compared with the company s previous models, while the COP of the model with higher level of efficiency is 1.32 and the COP of the model with extra high level of efficiency is 1.43, which is a world class. 1. Installation area and operation costs are reduced. Installation area and operation costs 3. Use of high efficiency and high performance heat exchangers The low temperature heat exchanger and the high temperature heat exchanger adopt the high efficiency and high performance BPHE, which enhances the efficiency of the chilling and heating unit. Concentrated Solution Dilute Solution Dilute Solution Concentrated Solution Previous models Models with high efficiency Previous models Models with high efficiency 2. Design that adopts high efficiency heat transfer tubes and optimizes heat tubes Special high performance heat transfer tubes are adopted for individual purposes of absorbers, evaporators, condensers and low temperature generators, while the arrangement of the heat transfer tubes are optimized to acquire miniaturization and high performance. 4. Improvement of solution flow The way of allowing the flow of solution is diversified to enhance efficiency, while the solution pump uses an inverter to increase the partial load factor efficiency. 5. Refrigerant solution heat exchanger The refrigerant solution heat exchanger is installed to recover the heat of the refrigerant drain to the solution in order to reduce the calorie to be wasted for the cooling water and subsequently improve efficiency.

4 Conveniently usable high performance control panel 1. Realization of the stable temperature of the chilled water Compensation based control method is supplemented to the existing PI based control to increase the capacity in response to the variation in load in order to control the volume of incineration promptly, making it possible to respond to the demands of air-conditioning systems by maintaining the temperatures at the outlet for the chilled water stably even when the load is fluctuating severely. 3. Prediction and diagnosis of abnormalities The predictive function, capable of preventing the overfreezing of chilled water and the crystallization of solution and predicting abnormality with the temperature of cooling water, can provide control to help the system stay in a stable operational status for itself before it reaches an abnormal condition. When an abnormal situation occurs, the predictive function provides diagnosis of abnormalities and storage of history of abnormalities, making it possible to identify the abnormalities promptly. 2. Color touch screen display Large size color touch screen display indicates the operational data such as temperatures of chilled water and cooling water in order to allow the status of the operation to be identified easily, while menu selection method is adopted to make it simple to operate the system to inspect the operational information, alarm signals, information of abnormalities and service functions, in order to allow operation, management and repair to be carried out conveniently. 2 Century 3

5 Direct_Fired Double effect bsorption Chiller & Heater Water (refrigerant) is vaporized in low temperatures in low pressures. Water saturation 1. Vaporization action of the evaporator Heat transfer tube bsolute pressure Refrigerant Refrigerant pump Vacuum Temperature In higher mountains, water is vaporized in temperatures lower than 100 C. In other words, as the pressure of water decreases, water will be vaporized in lower temperatures. The absorption chiller is manufactured by using such principle. LiBr water solution (the absorbing solution) has the absorption property similar to that of salt. s shown in the above picture, the heat transfer tube is installed inside an air-tight container that contains the refrigerant (water), and the chilled water is allowed to flow through the tube and the inside of the container is kept at the vacuum level of 6.5Hg, then, it is possible for the refrigerant to be vaporized in 5 C and, for the resultant vaporization heat to chill the chilled water inside the heat transfer tube. 2, bsorption action of the absorber Chilled water Heat transfer tube Cooling water Refrigerant (Liquid) LiBr water solution s shown in the picture, when the vessel containing the refrigerant and the vessel containing the LiBr water solution are connected with each other, the vaporized refrigerant is absorbed into the LiBr water solution, allowing the vessel containing the refrigerant to stay in a constant pressure. Refrigerant pump Evaporator Refrigerant Solution pump LiBr water solution bsorber When vaporization continues in the evaporator, the steam partial pressure goes up gradually, causing the vaporization temperature to increase also. When the container (the absorber) which contains the LiBr water solution is connected to the evaporator, the vaporized refrigerant is absorbed into the LiBr water solution, subsequently allowing the vaporization pressure and temperature to stay at a constant level. In order to remove the absorption heat generated during the absorption of the vaporized refrigerant, the heat transfer tube is installed inside the absorber to allow the cooling water to flow inside it.

6 3. Generation of the Dilute Solution (High and low temperature generators) 4. Condensation action of the vaporized refrigerant (Condenser) Low temperature generator High temperature generator Evaporator bsorber Flowing from the absorber Cooling water Medium concentration solution Heating by the refrigerant Vaporized steam heat refrigerant Heating by the combustion unit Condenser Low temperature generator High temperature generator When the absorption action continues, the concentration of the LiBr water solution becomes thinner and, subsequently, incapable of absorbing continuously any more. So, it needs to be concentrated as below. The dilute solution of the absorber needs to be allowed to flow separately into the high temperature generator and the low temperature generator. The dilute solution flowing into the high temperature generator is heated up by the combustion unit, and, as a result of it, generates the high temperature refrigerant steam, and gets concentrated. The high temperature refrigerant steam, generated in the high temperature generator, flows through the heat transfer tube, installed inside the low temperature generator, and heats up and condenses the dilute solution that is sent into the low temperature generator. In other words, the low temperature generator plays the role of a condenser for the high temperature refrigerant steam generated in the high temperature generator, and is also heated up by the latent heat of condensation of the high temperature refrigerant steam. Thus concentrated thicker solution goes back to the absorber and continues its absorption action. Both the refrigerant steam generated in the low temperature generator and the refrigerant condensed inside the heat transfer tube of the low temperature generator flow into the condenser to be completely chilled and condensed due to the cooling water that flows through the heat transfer tube of the condenser, before going back to the evaporator. The refrigerant solution, thus recovered into the evaporator, is vaporized again to keep the chilling action going on. 4 Century 5

7 Direct_Fired Double effect bsorption Chiller & Heater USRT Mcal/h Mcal/h O C /h mq O C /h mq KV Nm 3 /h Nm 3 /h q Ton Ton , ,125 1, , / ~ 4, , ,884 3,822 3,860 4,881 4,923 2,035 2,090 2,123 2,123 2,469 2,349 2,349 2,545 2,545 2,

8 USRT Mcal/h Mcal/h O C /h mq O C /h mq KV Nm 3 /h Nm 3 /h q Ton Ton ,210 1,361 1,512 1,693 1,905 2,117 2,419 2,722 3,024 1,407 1,582 1,758 1,969 2,215 2,461 2,813 3,165 3,516 1,016 1,142 1,268 1,424 1,600 1,777 2,033 2,285 2,541 1,182 1,328 1,475 1,656 1,861 2,066 2,364 2,657 2, / ~ 4, ,923 4,995 6,288 6,813 7,313 6,588 7,088 7,588 2,469 2,735 2,946 3,360 2,768 2,977 2,940 3, Century 7

9 Direct_Fired Double effect bsorption Chiller & Heater ,884 3,822 3,860 4,881 4,923 2,035 2,090 2,123 2,123 2,469 2,349 2,349 2,545 2,545 2, ,923 4,995 6,288 6,813 7,313 6,588 7,088 7,588 2,469 2,735 2,946 3,360 2,768 2,977 2,940 3,

10 R-F Type B C D E F G H I J 100 GE1 2, , , , GE1 2, , , , GE1 3, , , , GE1 3, , , , GE1 3, ,420 1, , , GE1 3, ,420 1, , , GE1 4, ,420 1, , , GE1 4, ,420 1, , , GE1 4, ,600 1, ,254 1, , GE1 4, ,600 1, ,454 1, , GE1 4, ,760 1, ,654 1, , GE1 4, ,760 1, ,854 1, , GE1 5, ,840 1, ,514 1, , GE1 5, ,840 1, ,714 1, , GE1 6, ,840 1, ,914 1, , GE1 5, ,920 1, ,000 1, , GE1 5, ,920 1, ,200 1, , GE1 6, ,920 1, ,400 1, ,200 8 Century 9

11 Direct_Fired Double effect bsorption Chiller & Heater HOT SURFCE COLD SURFCE 1. Hot Surface: Fiberglass or equivalent (50) 2. Cold Surface: Fiberglass, polyethylene foam or equivalent (20) REMRKS 1) Do not embed the moving parts (valve handles) in insulation. Valve handles must be free from insulation. 2) Do not embed the sight glass in insulation. 3) Do not embed the thermometer and manometer in insulation. 4) Do not embed the refrigerant pump motor in insulation. 5) When the water box is opened to clean the tubes, do not embed the clamping bolts of the water box. 6) Use fiber glass or polyethylene foam for cold insulation. Use fiber glass for hot insulation. (Do not use polyethylene foam for hot insulation) 7) Use a bonding agent, iron wires or bands to mount the insulation material. Do not use tapping(welding) and riveting 8) Insulation work will be done by others 100 GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

12 10 Century 11

13 Direct_Fired Double effect bsorption Chiller & Heater Support for the tubes Octyl trap purge tank Temperature measuring socket Pressure measuring socket Drain valve Refrigerant tank sight glass 1. Evaporator Consisting of the evaporator heat transfer tube, the refrigerant spray unit, the refrigerant solution tray, the eliminator, and the support plate, it vaporizes the refrigerant solution, during the chilling process, to take away the heat from the chilled water flowing inside the heat transfer tube in order to provide the chilling action, while, during the heating process, it concentrates and sends the refrigerant steam generated in the high temperature generator to the absorber in order to heat up the hot water by using the latent heat of the condensation. 2. bsorber It absorbs the refrigerant steam generated in the evaporator to keep the pressure inside the evaporator at a certain level in order to make it easy for the refrigerant in the evaporator to be vaporized to maintain the chilling capacity. It consists of the heat transfer unit inside which the cooling water flows, the solution spray unit, and the support plate. 3. Low temperature generator Consisting of the heat transfer tube inside which the high pressure refrigerant steam flows, the support plate, and the channel for solution, it heats up and concentrates the solution by using the latent heat of the high pressure refrigerant steam generated in the high pressure generator. 4. Condenser Consisting of the heat transfer unit inside which the cooling water flows, the refrigerant solution tray, the eliminator, and the support plate, it concentrates and sends the refrigerant steam generated in the high and low temperature generators to the evaporator. 5. Heat exchanger It is a shell & tube type heat exchanger that uses a specially processed high efficient heat transfer tube and the steel plate, and consists of the high and low temperature heat exchangers. It carries out heat exchange between the low temperature Dilute Solution and the high temperature Concentrated Solution to reduce the fuel consumption and enhance the efficiency of the chiller. 6. Refrigerant and solution pumps They are the airtight rotor pumps with low suction head. The pumps have no sealing sections, so there is no need for concerning about the air leak. 7. High temperature generator Consisting of the cylindrical outer wall, the flue tube (the combustion chamber) and the specially processed heat transfer tube, it is a flow tube and solution tube type heat exchanger. It utilizes the boiling of the inside solution to help circulation occur internally in a semi-forced manner in order to prevent overheating and concentration from occurring locally. 8. Heat exchanger for the high temperature water (UX) s a heat exchanger that can be installed separately, it generates hot water by utilizing the latent heat of the refrigerant steam generated in the high temperature generator (The temperature of the hot water at the outlet: 80 C). 9. Combustion unit s a unit to heat up and concentrate the solution in the high temperature generator, it consists of the combustion blower, the shut-off valve, the flame detector, and other control devices. It controls the volumes of fuel and combustion air through the temperature controller by detecting the temperature of the chilled water at the outlet during the chilling process as well as the temperature of hot water at the outlet during the heating process. 10. utomatic volume control unit s a unit to keep the temperatures of the cool and hot water at the outlet at a certain level and also to adjust its capacity in response to the load, it consists of the electronic fuel control valve, the proportional action temperature controller, and the thermostat.

14 Manometer Low temperature generator sight glass Evaporator sight glass bsorber sight glass Vacuum pump Manometer Various valves High temperature generator sight glass 11. Purge unit s a unit to discharge non-condensable gases and air to the outside in order to keep the inside vacuum, it consists of the purge tank, the purge pump, the check valve, the manometer, and the oil trap. 12. Operational panel (The control panel) s a unit to operate and control the chilling and heating system, it can generate an alarm and stop the system, if there is a situation that could cause a trouble with the system, in order to protect the machine. It includes the display unit of the control panel (start, stop, various pump operations, chilling and heating operation modes), indication lamps, alarm devices, protective devices, instruments and various electric parts. 13. High temperature generator protection units In the high temperature generator, there are the solution level lowering switch, the solution temperature switch, and the pressure switch. If levels are lowering, the temperature of the solution is increasing, or pressures are increasing abnormally, the units will help stop the machine and generate alarms. Then the indication lamps will be turned on to protect the machine and prevent the unnecessary combustion in the combustion unit. 14. Chilled water and refrigerant freezing prevention units There are the refrigerant low temperature sensor, the chilled water shut-off switch, the automatic start and stop sensors. If the chilled water level is lowering, the chilled water temperature is decreasing, or the refrigerant temperature is decreasing, the units will stop the machine automatically and generate alarms and turn on the indication lamps. 15. Solution crystallization prevention units If the solution temperature in the high temperature generator goes above the set level, the solution temperature switch will be activated to prevent the solution from being crystallized. dditionally, there is the solution dilution sensor, which, in case of the stopping, will operate the solution pump and carry out the dilution completely until the solution temperature goes below the set value. In such ways, the freezing of the solution due to the surrounding temperature will be prevented. 16. Combustion safety units If burning in the combustion unit is finished, the safety shut-off valve and the pilot solenoid valve will be closed by the flame detector in order to stop the fuel supply. If the fuel pressure goes down (up) abnormally, the gas pressure lower (upper) limit switches will stop the machine, while the alarms and the indications lamps will be activated. If the discharge pressure of the wind blower is low, the wind pressure switch will be activated to stop the combustion and control the operation of the wind blower in order to secure the safe combustion by carrying out the purging before the ignition as well as the purging after the completion of the burning. 17. Other safety devices and equipment Temperature switches for the solution and refrigerant pump motors - Electric over-current relays for the solution and refrigerant pump motors - Over-current relays for the wind blower motor - Interlock contacts for the cool (hot) water and refrigerant pumps - Oil pressure lowering switch (to be attached only when it is for oil) - Over-current relays for the fuel spray pump motor (to be attached only when it is for oil) - Protective relay - Sight glass - Manometer - Temperature gauge - Various valves - Safety valves 12 Century 13

15 Direct_Fired Double effect bsorption Chiller & Heater The Century s chilling and heating unit boasts of the perfect protective function and the automatic volume control unit. 1. Reduction of fuel consumption Low temperature generator Heat exchanger 4. Perfect safety protection units The machine can be used safely as there are various protective and safe devices for the situations, such as shut-off of the chilled water, overfreezing of the refrigerant, high temperature of the solution, high temperature of the high temperature generator, lowering of the levels, abnormalities with the dilution control, automatic start and stop, combustion safety, fuel system, and pumps. bsorber The parallel flow method is adopted to pursue the energy saving, and, at the same time, remove the concern about the crystallization of the solution. In the patented (Parallel flow), the solution is divided and sent by pressure into two separate generators, helpful in reducing the volume of the solution in the solution heat exchanger by about 1/2, making it possible to save huge energy and provide more room for design. dditionally, the concentration of the solution at the inlet of the absorber is low, so, there is no need for concerning about decrystallization. * Fuel consumption Gas: 1Kcal/Nm 3 : 0.272Nm 3 /h RT 12,000Kcal/Nm 3 : 0.249Nm 3 /h RT 15,000Kcal/Nm 3 : 0.199Nm 3 /h RT High temperature generator 2. Safe structure of the high temperature generator 5. Wide scope of operation Generally, when the cooling water temperature goes down, the inside solution becomes thinner in its concentration, and, at the same time, the refrigerant solution volume is lowered, leading to the cavitation in the refrigerant pump. In order to prevent such situation, the automatic level control unit is installed to make it possible to operate in a wide range of temperature conditions. 6. Easy to operate and no qualification for handling the machine s the pressure during the operation will not exceed the atmospheric pressure, the system is not handled as a boiler and does not require an additional person to manage it (The pressure at the high pressure section is about 570Hg, so it can be used safely). The pressure at the high temperature generator is determined by the concentration of the absorption solution inside the low temperature generator. In the serial flow method, the design can be structured in a way to make the pressure inside the high temperature generator lower than the atmospheric pressure as the thinnest solution is transferred to the low temperature generator. Due to such reasons, this system is not handled as a boiler, and there is no qualification for operating it. nd also, there will be no such case where the high pressure switch of the high temperature generator is activated to make it impossible to operate the system. High temperature main body Low temperature generator bout 570Hg Combustion unit The high temperature generator is structured in a straight-lined wall chilled by solution. In other words, there is no change in the direction from the combustion unit to the outlet for the combustion gas, so there is no need for concerning about damage to the machine due to the non-combustion gas remaining inside. 3. doption of the crystallization prevention device There is no need for concerning about crystallization of the solution as the crystallization prevention device is installed to prevent the concentration from increasing further when the solution concentration inside the machine reaches a certain level. Even in a condition where the solution temperature is low (risk of crystallization), there is no need for concerning about the crystallization of the solution as the balance cycle, which can make the solution thin in its concentration, is formed automatically. Thinnest solution High pressure section High temperature generator

16 7. Compact and light-weight s it can be supplied in a single unit, air-tightness is secured firmly, so there is no need for concerning about any leaks, while the installation area of the machine room can be made small. In the serial flow method, there is no need to send the solution from the high temperature generator to the low temperature generator, so the high temperature generator can be installed at the inclined bottom part of the shell of the main body in order to make the width of the unit narrower. Shell of the main body Pump dditionally, the system can be supplied in a single unit, without being divided, so the reliability of the strict air-tightness test performed at the factory can be maintained, without the need for concerning about leaks, making it convenient to install the system in the machine room and also carry out the installation at sites. 8. Short time for starting and dilution s the serial flow method is used, the solution volume and thermal capacity of the high temperature generator is small, making it possible to start shortly, and carry out dilution shortly also after the stopping. 9. Operation with much scope s the system has copious refrigerant volume, the system can be operated without reducing the solution circulation volume in response to the load conditions, and is also configured in a way to meet the requirements in a wide range of operation conditions. Such characteristics can allow the operation to take place, with much scope available, as the concentration and temperature of the solution is lowered. 10. utomatic volume control unit It provides a good control by detecting the temperatures of the cool and hot water at the outlets in response to the variation in load, as it uses the electronic fuel control valve and the proportional action temperature controller as well. 11. doption of the special spray method There is no need for concerning about the blockage in the nozzle and the corrosion in the heat transfer tube as the special spray nozzle is used both for the evaporator and the absorber, making it possible to allow the refrigerant and the solution to be sprayed evenly without being inclined toward a specific direction. 12. The latest purge unit The automatic purge unit will perform the purge process continuously always during the operation, making it possible to keep the internal vacuum level and enhance the chilling efficiency. 13. Harmless corrosion inhibitor The generally used corrosion inhibitors are harmful, while the Century s bsorption chiller uses the lithium nitrate that is absolutely harmless to the human body, allowing the repair inspection to be carried out safely. 14. ttachment of the repair valve (For all models) The repair valve is attached at the inlets and outlets for the refrigerant and solution pumps, making it possible to disassemble, inspect and replace the pumps easily without extracting the solution and refrigerant. 15. MICOM control based automatic control panel suitable for the intelligent buildings. The control panel is installed at the front side of the chiller, and the DDC(Direct Digital Control) method, which uses the 16-bit micro processor, is used for the controlling. ll the control states can be displayed in LCD in which the back light is embedded, making it possible to allow the controlling and displays to be operated at the sites. What can be displayed through the site control panel, HMI DISPLY, includes the temperatures of the chilled water and refrigerant, the temperature of the solution dilution, the temperature of the chilled water at the outlet, the state of the valve opening, the operation time, the accumulated count of starts and stops, the state of the status monitoring contact, and the status of other various alarms, while such status information will be displayed in a circular way automatically with fixed intervals (time). s the control unit counicates with the computer for the parameters such as set values, schedules, and the units that generate the alarms, so alteration can be made. There are various operation functions such as the operation from the control panel itself, the remote operation that allows the central control to perform a remote surveillance and control, and the scheduled operation that allows the automatic operation to take place according to the operation schedules from 1 day or 1 week up to years. In order to control the data conversion by unauthorized people, other than the chiller operator or its manager, which could cause a critical impact on the operation of the chiller, a password is used to make sure the operation is carried out safely. 14 Century 15

17 Direct_Fired Double effect bsorption Chiller & Heater USRT kcal/h O C O C LPM mq O C mq q Nm 3 /h Nm 3 /h kg/h kv - Ton Ton , , , , , , ,000 : 12, : 7 :55.4, : : 32, : ,140 1,330 1,520 1,710 1, ~4, (10) 40(10) FULLY UTOMTIC, ON-OFF FULLY UTOMTIC, PROPORTIONL CONTROL ,158 2,158 2,158 2,900 2,900 2,900 2,900 1,592 1,592 1,592 1,775 1,775 1,775 1,775 1,872 1,872 1,872 2,046 2,046 2,046 2,046

18 USRT kcal/h O C m 3 /h mq - O C m 3 /h mq - O C m 3 /h mq - kv kv - - q Ton kg/h kg/h Ton m , , , , , , ,680 1,088,640 1,209,600 INLET:12 OUTLET: EVEN ODD ODD ODD ODD ODD ODD EVEN EVEN INLET:32 OUTLET: ODD EVEN EVEN ODD ODD ODD ODD ODD ODD INLET:55 OUTLET: EVEN ODD ODD ODD ODD ODD ODD EVEN EVEN , , ø ø ø (37.8) 39(45.4) 46.8(54.4) 54.6(63.5) 62.4(72.6) 72.8(84.7) 83.2(96.8) 93.6(108.9) 104(121) 33.1(38.6) 39.7(46.3) 47.7(55.5) 55.6(64.8) 63.6(74) 74.1(86.4) 84.7(98.7) 95.3(111) 105.9(123.4) ,039 3,121 3,484 3,946 3,946 4,071 4,071 4,641 4,641 1,679 1,679 1,679 1,765 1,765 1,960 1,960 2,062 2,062 2,031 2,031 2,031 2,061 2,061 2,454 2,454 2,454 2, ,800 2,200 2,500 3,000 3,000 2,980 2,980 3,580 3, Century 17

19 Direct_Fired Double effect bsorption Chiller & Heater USRT kcal/h O C m 3 /h mq - O C m 3 /h mq - O C m 3 /h mq - kv kv - - q Ton Ton ,200 1,500 1,138,500 1,265,000 1,416,800 1,593,900 1,77 1,942,000 2,185,000 2,427,600 3,011,904 3,764,880 INLET:12 OUTLET: EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN INLET:32 OUTLET: ,200 1, ODD ODD ODD ODD ODD ODD ODD ODD EVEN EVEN INLET:55.8 OUTLET: EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN , ø ø ø ø ,000 4,000 4,500 4,850 4,500 5,000 5,500 6,200 6,700

20 18 Century 19

21 Direct_Fired Double effect bsorption Chiller & Heater

22 20 Century 21

23 Direct_Fired Double effect bsorption Chiller & Heater 125G4 150G4 180G4 210G4 240G4 280G4 320G4 360G4 400G4 LENGTH() 3,039 3,121 3,483 3,944 3,944 4,071 4,071 4,641 4,641 WIDTH(B) 1,679 1,679 1,679 1,765 1,765 1,960 1,960 2,062 2,062 HEIGHT(C) 2,031 2,031 2,031 2,061 2,061 2,454 2,454 2,454 2,454 HET PIPE RE(L) 1,800 2,200 2,500 3,000 3,000 2,980 2,980 3,580 3,580 WEIGHT OIL (ton) GS G5 500G5 560G5 630G5 700G5 800G5 900G5 100G5 LENGTH() 4,993 4,910 5,410 5,906 6,081 6,671 7,125 WIDTH(B) 2,440 2, HEIGHT(C) 2,926 3, CONECTION PIPING(S) HET PIPE RE(L) 4,100 4,000 4,500 4,850 4,500 5,090 5,590 WEIGHT(ton)

24 1200G5 1500G5 LENGTH() 7,150 7,550 WIDTH(B) 4,380 4,690 HEIGHT(C) 3,750 3,800 HET PIPE RE(L) 6,200 6,700 WEIGHT(ton) R-F Type 125G4 150G4 180G4 210G4 240G4 280G4 320G4 360G4 400G4 450G5 500G5 560G5 630G5 700G5 800G5 900G5 1000G5 1200G5 1500G5 B C D E F G 4,800 4,900 5,300 5,800 5,800 6,400 7,556 7,910 8,410 8,910 8,530 9,120 9,620 13,350 14, ,140 1,400 1,900 1,900 2,500 2,600 2,500 3,000 3,350 3,000 3,590 4,090 6,200 6,700 3,750 3,650 3,650 3,750 3,850 4,100 4,400 4,930 4,930 4,930 5,330 5,330 5,330 6,480 6,790 1,100 1,100 1,100 1,100 1,100 1,100 1,650 1,550 1,550 1,650 1,750 2,000 2,440 2,930 2, ,450 3,450 3,450 4,380 4,690 1,100 1,100 2,200 2,450 2,560 2,850 2,850 3,150 3,778 3,955 4,205 4,455 4,265 4,560 4,810 3,575 3, Century 23

25 Direct_Fired Double effect bsorption Chiller & Heater <R-F125G4> <R-F 150, 180G4> <R-F 210~320G4> <R-F360~400G4> <R-F450~1000G5> <R-F1200~1500G5>

26 MODEL R-F 40G3 50G3 60G3 70G3 80G3 90G3 100G3 125G4 150G4 180G4 Hot surface( ) Cold surface( ) MODEL R-F 210G4 240G4 280G4 320G4 360G4 400G4 450G5 500G5 560G5 630G5 Hot surface( ) Cold surface( ) MODEL R-F 700G5 800G5 900G5 1000G5 1200G5 1500G5 Hot surface( ) Cold surface( ) Insulation material Hot Surface: Fiberglass or equivalent Cold Surface: Fiberglass, polyethylene foam or equivalent 2. Insulation Thickness Hot surface: ppox. 50 for first stage generator and approx. 25 for others Cold surface: ppox Remarks 1) Do not embed the moving parts (valve handles) in insulation. Valve handles must be free from insulation 2) Do not embed the sight glass in insulation 3) Do not embed the thermometer and manometer in insulation 4) Do not embed the refrigerant pump motor in insulation 5) When the water box is opened to clean the tubes, do not embed the clamping bolts of the water box 6) Use fiber glass or polyethylene foam for cold insulation use fiber glass for hot insulation (Do not use polyethylene foam for hot insulation) 7) Use a bonding agent, iron wires or bands to mount the insulation material. Do not use tapping(welding) and riveting 8) Insulation work will be done by others 24 Century 25

27 Direct_Fired Double effect bsorption Chiller & Heater Thermometer Drain valve Pressure gauge Strainer Cooling tower Expansion tank Pump Stop valve Cooling water pump Chilled (hot)water header Direct fired bsorption chiller-heater First stage generator Chilled(hot) water pump Hot water Heat exchanger 1. Century scope of supply 2. To insure and correct flow from the chiller, balancing valves should be installed at the chilled (hot)water and cooling water outlets. Be sure to install pressure and temperature gauges referring to this schematics. 3. Be sure to install drain valves at the lowest part of the chilled water, hot water, cooling water pipings in order to be able to exhaust the water of the pipings, and connect drain valves with suitable drain discharge ditches. 4. Be sure to install air vent valves at the higher water and hot water pipings than water chambers of the machine. 5. Expansion tank must be installed in chilled water and hot water piping line if closed water cycle is adopted. 6. Be sure to install a 10 mesh strainer on the inlet side of the piping for chilled water, hot water and cooling water. 7. Effective supports are necessary for water and gas pipings not to put those weight on the machine. 8. rrange the piping considering the space for extracting the tubes and for opening the water chamber 9. Cooling tower must be installed at the place where is free from pollutants in atmospheric air. (Such as sulfurous acid gas contained in sootysmoke from chimney, aonia and hydrogen sulfide exhausted from ventilation fans of buildings, sewage treatment plants and chemical plant.) 10. Cooling water inlet temperature should be kept above 20 C by cooling tower fan capacity control or by providing bypass water line like as above piping schematics. 11. Maximum permissible pressure of water circuit R-F40G3~60G3:5kg/cm 2 G R-F70G3-1500G3: 8kg/cm 2 G

28 26 Century 27