TW201115666A - Testing platform and method for properties of process cooling machine - Google Patents

Abstract

The present invention relates to a testing platform and method for properties of a process cooling machine. Primarily, it may adjust the amount of load to meet variations of stimulations for actual loads, and precisely test the cooling capacity of a process cooling machine. With a testing platform of the process cooling machine, the temperatures and amounts for cooling water flowing out of or into an inlet or outlet thereof can be measured to obtain the data of cooling capacity of the process cooling machine, wherein a differential pressure device can be used to rectify flow rate and ensure the initiation of a heating device for evaporator heat capacity with sufficient flow rate in cooperation with an electricity protecting device so that the heating device can be prevented from damages of overheating or idle-running. Besides, to avoid any measurement errors of temperatures of cooling water flowing out of or into an inlet or outlet of the process cooling machine, a mixing device and an expansion water tank are particularly provided to mix the cooling water averagely to reduce uneven distribution of temperatures and also to exhaust the air inside piping to prevent piping and a pump from cavitations. Still, the testing platform of the process cooling machine may not only test precisely the capacity of the evaporator but also switch the linked piping to directly measure the capacity of a condenser of the cooling machine. Accordingly, the experimental tests can be substantially improved in speed convenience and accuracy.

Description

201115666 VI. Description of the invention: [0001] [Technical field to which the invention pertains] The present invention relates to a performance test platform for a process cooling machine and a test method thereof, and more particularly to a high cooling power consumption ratio for a high-tech industry. Process temperature characteristics, in electrical energy and constant temperature control test, to understand the performance and system characteristics of the process freezer, analyze the cooling high temperature, high heat process fluid 'to improve the process cooling system, will effectively reduce the power consumption of compression work loss 'The power saving space is considerable, not only to test the power consumption of the unit products, but also to monitor the performance efficiency of the process cooling machine, and to test the performance of the process cooling machine which is more practical and practical in the whole ship.

Platform and its testing methods, innovative juicer Vi· U0- V

[Prior Art] [0002] According to the arrival of the limit of natural resources and the carbon-limited era, the response strategies adopted by advanced countries such as Europe and the United States have become more active. Many international companies have also considered the clean production and the reduction of technology. The possibility of cross-border cooperation 'to achieve the goal of alleviating increasing pressure and reducing greenhouse gas emissions by action 焱-Green, in recent years two- ί || +1 · / '1 The development of the source of the ab source is difficult And the frequent addition of power plants also exposed the fact that some areas have insufficient electricity and energy;

Major industrial investment cases have been launched, and the Ministry of Environmental Protection has also listed electricity and carbon dioxide emissions as key projects for review. Therefore, in the foreseeable future, issues such as the efficiency of energy utilization are a top priority for enterprises. In Japan, the distribution of time and space factors is uneven, and natural resources are in short supply. In addition, the abnormal global climate changes in recent years have led to a shortage of resources and an increasing energy crisis. However, with the development of the 098,136,131 smoked large-scale development in the petroleum refining and petrochemical raw material basic industrial zones, the demand for industrial electricity is not in the name of Fang Xing, and the 曰琴琴号 A0101 4 1 / 23 pages, 0982061951-0 201115666 [0003] Increased. It is not easy to develop natural resources. How to actively and effectively save, promote and use electricity to respond is a serious issue. among them

[0004]

The high-tech industry has always been a power-intensive industry. In the long-term continuous process conditions and other aspects of improvement and power consumption reduction, peak (four) management of Hunan technology evaluation, product unit power consumption and output value unit electricity consumption The trend of repairing year by year; however, the consumption of some electrical energy resources is still concentrated on the heat removal of the process reaction. Taking the chiller of domestic semiconductor and machining as the standard example, more than 50,000 process cooling machines (including cold Zheng) are in operation in Taiwan, and the annual consumption of electricity exceeds 1.5 billion kWh. It is considerable. Process cooling technology is in demand, but due to the increase in crude oil prices in recent years, it will force Fengtong conductors, optoelectronics and other system equipment manufacturers to develop more efficient process equipment (including process cold heading equipment) to save energy costs and improve industry. Production competitiveness / iSmartlectual In particular, Taiwan's position as a semiconductor leader encompasses the world's richer crystallographic conductor manufacturing materials. 'The loss of any process will cause irreparable damage. The reliability and precision requirements of manufacturing equipment are necessary. Therefore, it is extremely important to maintain the constant temperature equipment for semiconductor manufacturing. [0005] However, the various processes on the market can achieve the process cooling and maintain the process constant temperature. Efficacy 'but found in its actual operation and implementation 'There is no standard test specification and platform in this type of process refrigeration equipment, so that there is no standard value between the manufacturers can determine its performance. 098136131 Form No. A0101 Page 5 of 23 0982061951-0 201115666 [0006] [0007] The reason is that the inventor has more than this, and has been studying the existing structure for many years in the rich design and development and practical production experience of the relevant industry. The improvement has thus invented a performance test platform and test method for the process of cold-free machine, in order to achieve better practical value. SUMMARY OF THE INVENTION The performance test platform and test method of the process cooling machine of the present invention, the first (four) is mainly by the * pipe transfer device connection process cooling machine test platform and its test method, through the pipeline connection into the flow detection device The flow detecting device is driven by electromagnetic force to cause the measuring element to generate a resonant frequency, so that when the fluid flows through the flow detecting device, the frequency of the measuring element is changed and the frictional loss caused by the distance borrowed is generated.

The flow rate of the road connection port is adjusted. · eaewweew -t- The valve is adjusted to the opening degree of the door. The simulation test practice should be based on the friction loss condition of different pipeline distances. Finally, the converted resonance frequency, the differential pressure value of the pipeline, and the density of the flow vessel are converted. With the temperature, the flow rate of the fluid can be measured, so when detecting the flow rate of the flow, the rubbing loss and the density change at different temperatures ^; > eriv [0008] The performance of the process chiller of the present invention The test platform and its test method, the second purpose of which is mainly the plate evaporator and the plate condenser in the process cooling machine, which can be connected to the process cooling test machine platform to detect the capacity of the plate evaporator, and also through the inlet and outlet flow regulating valve The control 'detects the capacity of the plate condenser, so the process cooling tester platform can detect the energy of the plate condenser and the plate evaporator. [0009] The performance test platform and test method of the process cooling machine of the present invention, the third purpose of which is mainly because the flow vessel enters the flow detection device due to the pipeline % 098136131 Form No. A0101 Page 6 / Hing 23 Page 0982061951-0 [0012] [0012] [0012] There are a few bubbles in 098136131, which causes instability and accuracy of detection, and also causes bubble cavitation pipeline and low temperature fluid pumping, so the system can be moved through the expansion tank. The purpose of air removal is to allow the air in the pipeline to be freely vented to the atmosphere; although the expansion tank can achieve the function of the exhaust', but also causes the system's pipeline pressure loss is too high, so when the exhaust process - Immediately afterwards, the expansion tank is closed and operated by the bypass line. After this procedure, the air is not removed and the pressure drop of the pipeline is not increased. The performance test platform and the test method thereof of the process cooling machine of the present invention mainly have a mixing phenomenon of hot and cold fluids during the detection process, thereby causing a problem of uneven temperature distribution, and therefore the distribution of the stirring installation degree is not Moment and rotation speed The performance test platform and test method of the process cooling machine of the present invention's fifth purpose is mainly to improve the evaporator heat heating device, and the heat can be completely solved for the heat, the device can set different fluid temperatures, And the magic _ earning 'can 4' and the evaporator heat heating device balance, by the amount of _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The sixth object of the invention is to provide an automatic PID calculation device for controlling the evaporator heat heating device, and the device can set different fluids for the heat __ The temperature can also be set to a continuous heat change' and has a dish feedback device, the plate evaporator energy can quickly reach the heat balance with the heat change, and the evaporator heat heating device consumes the form number A0101 page 7 / total On page 23, 'the effect of detecting error caused by the stirring device evenly' is obtained to obtain the heat output during stirring.

0982061951-0 201115666 [0013] [0016] [0016] 098136131 power, can not be directly detected by the instrument, so through the test platform system. Detect the secondary heat of the secondary coolant, flow and inlet and outlet temperatures, converted Since the amount of change is obtained by the evaporator energy, the energy of the plate evaporator for detecting the fluctuation characteristics can be achieved by the above method. The seventh object of the performance test platform and the test method thereof for the process cooling machine of the present invention is mainly to provide a power protection device, wherein the power protection device controls the power supply device through the flow sensing device and the temperature feedback device, the control It can prevent foreign matter from clogging or low-temperature fluid pumping failure, resulting in abnormal flow of fluid. It can be controlled by flow rate or by temperature feedback method to achieve the function of opening and closing the power supply device to prevent evaporation: S The heat and quantity of the twisting device is dangerous to burn, so the flow and temperature are controlled to achieve the protection effect of the process cooling tester platform. [Embodiment] For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, the following is a detailed description, and please refer to the drawings and drawings: First, please refer to the first block diagram of the structural block diagram of the present invention. The present invention mainly comprises a test platform system (1), a secondary refrigerant heat control system (2), a process cooling machine (3) and a tube. The road connection device (4); wherein: the test platform system (1), please refer to the second diagram of the test platform system circuit diagram of the present invention, which comprises an expansion water tank (1 1 ) and a mixing device (1) 2), a flow detecting device (1 3), an outlet temperature sensing device (14), a differential pressure device (15), a form number Α 0101, a page 8 / a total of 23 pages 201115666 an inlet and outlet flow regulating valve (1 6) and An inlet temperature sensing device (17); cooling water generated by the process cooler (3) flows into the test platform system (1) through the inlet and outlet flow regulating valve (16) to be adjusted to an appropriate flow rate into the test platform System (1) and by inlet temperature The measuring device (17) monitors the inlet water temperature of the cooling water of the process cooling machine (3) and then enters the secondary refrigerant heat control system (2) to achieve the heat balance requirement, and the inside of the tube is passed through the expansion water tank (1 1) of

The air is discharged to the atmosphere and passed through a mixing device (i 2 ) to prevent the temperature distribution of the cooling water from being unevenly distributed. Then, the flow detecting device (13) and the outlet temperature sensing device (1.4) are used to check the cold: water The flow rate and temperature are finally lost by the differential pressure assembly 5), and the other inlet and outlet flow adjustment valve (i machine (3) completes a test cycle. .// Vv^··'^ [0017] Refrigerant heat control system (2) 'Please refer to the third figure of the present invention for the secondary refrigerant heat 1 system silt circuit diagram, which includes 1 ? device (2 evaporator heat heating device (❿

2) A power protection device returns the sensing device. Office Coating ^ Z 4 ) 'The thermal control device (2 2 ) comprises an automatic PID calculation device (221) and a setting adjustment device (2 2 2), the power protection device (23) is driven by - flow rate The device (23 i) is formed by a power supply device (23 2); the cooling water flowing into the process cooler (3) flows through the temperature feedback sensing device (24) and the power protection device (23) ), and then the heat balance is given by the evaporator heat heating device (2 1 ), but when the flow rate of the cooling water is too small, the heat of the evaporator is heated (I 1) to overheat, so the transmission of electricity 098136131 Form No. A0101 Page 9 / 23 pages 0982061951-0 201115666 The flow sensing device (2 3 1) in the force protection device (2 3) senses the flow rate. If the flow rate is detected to be too small, the power supply device will be driven (2 3 2 The "open circuit" causes the evaporator heat heating device (2 1 ) to be turned off to achieve the function of protection. Furthermore, the heat control device (2 2) can be used to control the heat of the evaporator heat heating device (2 1 ), and the heat control device (22 can select an automatic pid calculation device ( 2 2 1) or a setting adjustment device. (2 2 2), the temperature feedback sensing device (24) is fed back to the automatic PID calculation device (221) so that it can automatically adjust the evaporator heat to heat with the change of the cooling water temperature (2 1 ) 戴 i i sea; f class adjustment device (22 2) 'Manually adjust the heat f of the heating device (2 1), and then adjust the evaporator heat plus _ county (2 1:) [0018 ]

The process cooling machine (3), please refer to the fourth diagram of the process cooling circuit diagram of the present invention, which comprises a 丨τ high temperature fluid circulation system (3 1 >, a refrigeration system (3 2:) fluid Circulatory system

3 3), and then connected to the test platform system (1) through the pipeline to replace the gold (4) for cooling water measurement; the high temperature fluid circulation system (3 1 ) comprises a high temperature fluid pump (3 1 1) and a high temperature liquid storage device (3 12) 'so that the fluid after heat exchange through the refrigeration system (32) is circulated through the high temperature fluid pump (3 1 1 ) and flows through a high temperature liquid storage device (3 1 2), Finally, the pipeline connection device (4) is connected to the test platform system (1) or the constant temperature water tank; the refrigeration system (32) is composed of a compressor (3 2 1), a plate condenser (3 2 2 ), an expansion Valve (3 2 3 ) and a plate evaporator (324) 098136131 Form No. A0101 Page 10 / 23 pages 0982061951-0 201115666 Constructed, and the compressor (3 2 1) system, will increase the gaseous refrigerant Pressurized, sent to the plate condenser (3 2 2) and then exchanged with the high temperature fluid circulation system (3 1), the condensed liquid refrigerant is cooled by the expansion valve (3 2 3 ) and then passed through the plate evaporator (3 2 4 Heat exchange, the cold energy of the plate evaporator (3 2 4) is transferred to the low temperature fluid circulation system (3 3) to cool down, most And then returning to the compressor (3 21) to complete a cycle; the cryogenic fluid circulation system (33) comprises a cryogenic fluid pump (33 1) and a cryogenic liquid storage device (33 2); and the refrigeration system (32) The plate-type evaporator (3 2 4) heat-exchanged fluid is circulated through the low-temperature flow system (3 3 1), and flows through the cryogenic liquid storage device (3 3 pan-coupling device (4) to Measuring the system (if you want to test the refrigeration system 1: (3 2) must be low ..... The temperature fluid circulation system (3 3) is connected to the test platform system (1), and then the high temperature fluid is circulated The system (31) is connected to the constant temperature water tank, and conversely, to test the plate condenser (connect the low temperature fluid circulation system (3 3) to the high temperature fluid circulation system (3Γ). [0019] And when testing For the inlet and outlet temperature values and flow values of the sputum cooler (3), please refer to the fifth diagram of the test flow circle of the present invention, which is as follows: [0020] S 5 Ο 1 : 槎 槎 cooler (3) Connect to the process cooling test machine; S 5 〇 2: Determine whether the flow is sufficient; 098136131 Form No. Α0101 11 pages/total 23 pages 0982061951-0 [0021] 201115666 [0022] S 5 Ο 3 : If the system flow is insufficient, the power supply of the evaporator heat heating device (2 1 ) will be stopped for protection, and then return to S 5 Ο 1 step until the flow supply is normal; [0023] S 5 0 4 : When the flow supply is sufficient, it is judged whether it is floating evaporator heat; [0024] S 5 0 5 : If the system is fixed evaporation In the case of the heat condition, the set temperature value is adjusted; [0025] S 5 0 6 : and the manual setting adjustment device is activated: Ref. [0026] S 5 0 7 : and determine whether to maintain the evaporator heat balance if the evaporation is not maintained The heat balance must return to S Ε 5 () 6 steps; [0027] S 5 0 8 : If the evaporator heat balance is maintained, the consumed power value can be output to know the capacity of the process cooler (3); 0028] S 5 0 9 : and if the system is a floating evaporator heat condition, the outlet temperature of the shoe cooler (3 . ) must be sensed through the outlet temperature sensing device (14);

[0029] S 5 1 0 : and setting the inlet temperature of the process cooler (3); [0030] S 5 1 1 : re-adjusting the time variation of the outlet temperature difference of the process cooler (3); [0031] S 5 1 2 : Enter the automatic force calculation evaporator heat heating device; [0032] S 5 1 3 : Sensing whether the cooler inlet temperature reaches the set value, if it does not reach the set temperature, it must return to the S 5 1 2 step; [0033] S 5 1 4 : When the inlet temperature of the cooler reaches the set temperature, the calculation steam 098206195 Bu 0 098136131 Form No. A0101 Page 12 / Total 23 Page 201115666 [0034] [0036] [0036] The generator energy 'to obtain the process cooler (3) Ability. However, the above-described embodiments or drawings are not intended to limit the structure or the manner of use of the present invention. Any suitable variations or modifications of the present invention will be apparent to those skilled in the art. From the above, the component composition and use description of the present invention show that the present invention has the following advantages compared with the prior art: 1. The present invention makes the process cooler achieve the requirements of real testing, so that The design is easy to move and detachable. This design allows the test platform system to move quickly and easily to connect to the cause test.

[0037] Inconvenience and mobility. Zhan 2. The test platform system of the invention adopts an automatic PID calculation device or a manual adjustment device, and the sentence accurately adjusts the evaporator heat heating device and can vary with different negative φ [0038] 3. The invention can pass the gas in the expansion tank pipeline, The mixing device solves the problem of uneven temperature distribution, so the temperature and flow values can be more accurately obtained. [0039] 4. In order to solve the problem that the pipeline connected by the test process cooler is too long, the differential pressure device is installed in the test platform system to correct the pressure loss of the pipeline; or the flow caused by the foreign matter being blocked by the system. Insufficient problem, the pressure difference device can also be combined with the power protection device to control the opening or closing of the evaporator heat heating device, thereby preventing the risk of the evaporator heat heating device being burned. 098136131

Form No. A0101 Page 13 of 23 n 201115666 [0040] 5. The invention can quickly replace the high temperature fluid circulation system or the low temperature fluid circulation system through the pipeline connecting device, thereby obtaining the plate condenser and the plate evaporator of the process cooling machine. Ability, [004]] 6. The automatic PID calculation device of the invention can automatically control the size of the evaporator heat heating device, and accurately adjusts the evaporator heat heating device through the temperature feedback sensing device, which can be used for the change In the state of the state, you can adjust the amount of heating. [0044] In summary, the embodiments of the present invention can achieve the intended use effect, and the specific structure disclosed therein is only seen in the same kind of production. China has not been disclosed in the pre-application law: and the requirements of the United States legally filed an invention, 彝|^% for review, and granted a patent, it is really sensible. 2; 4 _ [Simple diagram of the diagram] The first diagram: the schematic block of the invention is shown in the circle. The second diagram: the test of the invention: flat

The third figure: the second table of the present invention, cold air heat, Dong Hao control system circuit diagram

Fourth Diagram: Process Cooler Circuit of the Invention [0047] Fifth Diagram: Test Flowchart of the Invention [Main Component Symbol Description] [0048] (1) Test Platform System (11) Expansion Water Tank (12) Mixing device (13) Flow detecting device (14) Outlet temperature sensing device (15) Differential pressure device (16) Inlet and outlet flow regulating valve form No. A0101 Page 14 of 23 098136131 0982061951-0 201115666 [0049] (17 ) Inlet temperature sensing device - (2) Secondary refrigerant heat control system (21) Evaporator heat heating device (22) Thermal control device (2 2 1 ) Automatic PID calculation device (222) Setting adjustment device (23) Power protection Device (231) flow sensing device (232) power supply device (24) temperature feedback sensing device (3) process cooling machine (31) still temperature fluid circulation system (3 1 1) still temperature fluid fruit pump (3 1 2) High temperature liquid storage device (3 2) Refrigeration system (3 2 1) Compressor (3 2 2) Plate condenser (3 2 3 ) Expansion valve (3:2 4.) Plate evaporator (33) Cryogenic fluid circulation System (3 31) Cryogenic fluid pumping (3 3 2) cryogenic liquid storage device (4) Pipe connection Device

098136131 Form No. A0101 Page 15 of 23 0982061951-0

Claims (1)

201115666 VII. Patent application scope: 1. A performance test platform for a process cooling machine, which mainly connects a process cooling machine to a test platform system, the test platform system comprises an expansion water tank, a mixing device, a flow detecting device, and a An outlet temperature sensing device, a differential pressure device, an inlet and outlet flow regulating valve and an inlet temperature sensing device; the cooling water generated by the process cooling machine flows into the test platform system through the inlet and outlet flow regulating valve to be adjusted to an appropriate flow rate The platform system is tested, and the inlet temperature sensing device monitors the inlet water temperature of the cooling water of the process cooling machine, and the air in the tube is discharged to the atmosphere through the expansion water tank, and is mixed by the mixing device to prevent uneven temperature distribution of the cooling water. Then, the flow detection device and the outlet temperature sensing device detect the cooling water flow 舆 overflow, and finally the difference between the pressure drop by the difference::: m pressure device is measured by the male inlet and outlet flow regulating valve. The process chiller completes a test cycle. 2. The performance test platform for a process chiller according to claim 1, wherein the process chiller comprises a high temperature fluid circulation system, a refrigeration system and a low temperature fluid circulation system, and is connected through the pipeline connection device. The test platform system performs cooling water measurement; the high temperature fluid circulation system comprises a high temperature fluid pump and a high temperature liquid storage device, so that the fluid after heat exchange through the refrigeration system passes through the high temperature fluid pumping cycle and flows through the a high temperature liquid storage device, which is finally connected to the pipeline connection device to the test platform system; the refrigeration system is constructed by a compressor, a plate condenser, an expansion valve and a plate evaporator, and the compressor system is in a gaseous state The refrigerant is pressurized, sent to the plate condenser and then exchanged heat with the high temperature fluid circulation system. The condensed liquid refrigerant is depressurized through the expansion valve, and then exchanged heat through the plate evaporator. The cold energy of the plate evaporator is transferred to the low temperature fluid circulation. System cooling, finally 098136131 Form number Α0101 Page 16 / Total 23 page 0982061951-0 201115666 Back again The shrinking machine completes a cycle process; the cryogenic fluid circulation system comprises a cryogenic fluid pump and a cryogenic liquid storage device; and the fluid exchanged by the plate evaporator of the refrigeration system passes through the cryogenic fluid pumping cycle and flows through The cryogenic liquid storage device is finally connected to the pipeline connection device to the test platform system. 3. The performance test platform of the process chiller according to claim 1, wherein the test platform system is capable of entering the secondary refrigerant heat after the inlet temperature sensing device monitors the inlet water temperature of the cooling water of the process chiller. Controlling the system to achieve heat balance requirements; the secondary refrigerant heat control system includes an evaporator heat heating device, a power protection device, and a temperature feedback sensing device, the power protection device is configured by a flow sensing device a power supply device; the cooling water flowing into the process cooler flows through the temperature feedback sensing device and the power protection device, and then the heat is balanced by the evaporator heat heating device, and the flow rate is sensed through the power protection device The device senses the flow, and if the flow is sensed to be too small, the power supply device is driven to open, so that the evaporator is heated and closed: ^ is turned off. 4. The light system as described in item 3 of the patent application scope: the performance test platform of the cold ipil • . . . ' ψι m» , wherein the secondary refrigerant heat control system has a heat control device to The heat control device is used to control the heat of the evaporator heat heating device, and the heat control device can use the automatic PID calculation device to return the temperature feedback sensing device to the automatic PID calculation device so that it can change with the temperature of the cooling water. To automatically adjust the heat of the evaporator heat heater. 5. The performance test platform for a process chiller according to claim 3, wherein the secondary refrigerant heat control system is provided with a heat control device for controlling heat of the evaporator heat heating device by using a heat control device, The heat control device can use the setting adjustment device to manually adjust the heat of the required evaporator heat heating device through the setting adjustment device 098136131, Form No. A0101, page 17 / 23 pages 0982061951-0 201115666. 6. A method for testing the performance test platform of a process chiller, which is: S 5 0 1 : connecting the process chiller to the process cooling test machine; S 5 0 2 : determining whether the flow is sufficient; S 5 0 3 : If the system flow is insufficient, the power supply of the evaporator heat heating device will be stopped for protection, and then return to the S 5 0 1 step until the flow supply is normal; S 5 0 4 : When the flow supply is sufficient, it will be judged Whether it is floating evaporator heat; S 5 0 5 : If the system is a fixed evaporator heat condition, adjust the set temperature value; S 5 0 6 : and start the manual setting 霣 device; S 5 0 7 : And determine whether to maintain the evaporator heat balance, if the evaporator heat balance is not maintained, it must return to the S 5 0 6 step; S 5 0 8: and if the evaporator heat balance is maintained, the consumed power value can be output to know the process Cooling capacity; S 5 0 9 : If the system is a floating evaporator heat condition, then φ must sense the outlet temperature of the process cooler through the outlet temperature sensing device; S 5 1 0 : and set the process cooler It Port temperature; S 5 1 1 : Re-adjust the time change of the process cooler temperature difference; S 5 1 2: Enter the automatic force calculation evaporator heat heating device; S 5 1 3 : Sensing whether the cooler inlet temperature reaches the set value, If it does not reach the set temperature, it must return to S 5 1 2 step; S 5 1 4: When the inlet temperature of the cooler reaches the set temperature, the evaporator energy is calculated to obtain the capacity of the process cooler. 098136131 Form No. A0101 Page 18 of 23 0982061951-0