The above PH diagram curve is taken from the ASHRAE R134a PH diagram. However, you can look for companies who do ESPC (energy-saving performance contract) and propose to change their chillers through ESPC. aircondlounge is a participant in the Stripe Climate. Visit https://aircondlounge.com/category/buyer-guide/ to see more guides and product recommendations. Hence, HC is the power input of the compressor. This typically equates to running at 70 to 75 percent, along with the lowest entering condenser water temperature (ECWT). chiller diagnosis To read more about chiller condenser systemshit the Tagat the top of the page. However, increasing the refrigerant condensing pressure of your chillers is costing you more money. Since pressure is directly proportional to temperature, low refrigerant condensing temperature is good for chillers. The extensive Trane chiller product line was developed based on If the building owner has the budget, replacing the chillers is a good option rather than keep repairing them especially when they are too old to be fixed. When the chilled water supply temperature increased to 10C (50F), the refrigerant evaporating temperature increased to around 9.4C (49F). Food and beverage industry: Brine chillers are commonly used in the food and beverage industry to cool process equipment such as reactors, condensers, and heat exchangers. But, they can become very inefficient due to poor operation and maintenance that might not be at your fault. When the condenser water return temperature is high, it will not bring down the chillers refrigerant condensing temperature at the chiller condenser tube. So, if increasing the condenser water return temperature will decrease the efficiency of the chiller, isnt it decreasing the condenser water return temperature will increase the efficiency of the chiller? Flow rate is inversely proportional to temperature. To understand why, lets take a look at a typical PH diagram that represents the refrigeration cycle as below: PH diagrams are very useful for us to understand the refrigeration cycle happening inside a chiller and thus, get to know the relationship between the chiller performance and water temperature. Learn different types of HVAC components used in residential and commercial buildings. Looking for Revit files? and can reach the refrigerating capacity and other indexes of the product nameplate. There are a lot of thermostats in a building. We also participate in other affiliate programs which compensate us for referring traffic. The set point for the chilled water was 6C so this warm water was helpful as it gave us plenty of load to carry out the testing. This was because. Purchase and download the Chilled Water System (eBook) to learn more about chilled water system and how to implement the knowledge shared in this article. Therefore, this too was cut back and an adaptor fitting was welded into place. So, it is true that decreasing the condensing water return temperature will increase chiller efficiency. No matter design debugging or maintenance, generally considered that the exhaust pressure is approximately equal to the condensation pressure. chiller refrigerant leaks High chiller approach temperatures usually mean reduced heat transfer, increased energy consumptions, and a reduction in refrigeration capacity. However, they dont realize that by doing so, they may be causing more energy usage on their chillers. minimal environmental impact. Brine is circulated through the chiller system, absorbing thermal energy from the process and carrying it away to be cooled. So, do check again if youve slowed down your condenser pumps. One of the biggest disadvantages of using brine in a chiller is its potential for corrosion. Thus, do check your chiller condenser tubes if you havent already. the health, comfort and productivity of its occupants. When the condenser water return temperature is high, the refrigerant condensing temperature and pressure are increased. This was witnessed at the beginning and at the end by the customer. This makes it a preferred choice for applications where heat transfer efficiency is important, such as in heat exchangers, and air conditioning systems. centrifugal, helical-rotary and scroll compressor chillers, ranging in A variety of salts can be used to make a brine solution for use in a brine chiller, but, is the most commonly used salt. The lower the condenser pressure (high pressure), the lower the condenser temperature; The higher the condenser pressure (high pressure), the higher the condenser temperature. After removing the vacuum pump, the recovered refrigerant was pumped back in, then the discharge and liquid valves were opened back up. Compressor, Best Full-load Efficiency: 0.4872 kW/ton Thus, securing your saving and their profit. In summer, when the air-conditioned outdoor environment is around 35 degrees, we can estimate the temperature at this time the condensation temperature Some of them came loose by heating them with oxy-acetylene, the others were ground off with an angle grinder. High delta T setup can increase chilled water system efficiency. We decided to use a crane to lift out the old condenser, then lift in the new one. When your chiller condenser tubes are dirty, the heat transfer between the condenser water and the refrigerant is not effective. I encourage you to check out my post on what is high delta T chilled water systems where explained the high delta T setup and the common problem using high delta T setup. Most of the time, the AHUs filter is clean but the cooling coil is not. built adaptors to bolt in between the condenser and the water system pipework. chiller expansion valves If the air volume is large, the condensing pressure will naturally drop. Chiller air cooled condenser adiabatic cooling energy savings. The chiller went through a timer and then started up. Check them out if youre looking to buy one. Your chillers may be running inefficiently now and your overall electricity usage may be higher than before. The refrigerant charge of the cooling system is not enough; Chiller air cooled condenser adiabatic cooling energy savings. chiller condenser high pressure faults They cut back the new condenser discharge connection and welded a new flange on. 0161 370 7193 service@maximuschillers.com, By: Maximus Chillers|Published on: Apr 5, 2021|Categories: Chiller Components|. Therefore, the refrigerant evaporating pressure also increased. No. Many people thought that increasing the chilled water supply temperature improves the chiller efficiency but, it is more than that. Not cleaning the chiller condenser tube regularly will increase the refrigerant condensing pressure thereby lowering chiller efficiency. I enjoy working on air conditioners and ventilation fans because Malaysia is a very hot country. This was one of 2 vessels in the plant room that had been there since the chiller was new. Evaporation temperature 25 + (10 ~ 20)40 C, according to the temperature and pressure table, it is easy to find that the condensation pressure at this time is about1.55 MPA (absolute pressure, R410 refrigerant). So, check and clean your cooling towers fan and infill if you havent done it lately. The higher exhaust pressure will increase the compression work and decrease the gas transmission coefficient, which will decrease the cooling efficiency. These are the top selling digital products made by me and sold on aircondlounge. Hence, the condenser water temperature returning back to the chillers is high. Overall footprint that is 27 percent smaller than similar products. chiller condenser high pressure switches chiller compressor oil change The refrigeration system lacks refrigerant. By slowing down the condenser pumps, the condenser water flow rate is reduced. They rather let their inefficient old chillers use a great amount of power, causing high monthly electricity bills. 2. There was some difficulty getting it into its final location. When the chilled water return temperature is low, the refrigerant evaporating temperature/pressure is low. The old condenser was valved off from the rest of the system and the refrigerant was pumped into an 800 kg recovery vessel. Hence, a portion of the cooling coil cant condense the air and the dehumidification capability of the cooling coil decreased. 4. tons, 50 Hz, Best Full-load Efficiency: 0.6200 kW/ton (at How is the condense temperature controlled? chiller control systems ventilation for the space, but they also help minimize operating costs Actions will be taken for unauthorised republication of this article. Our powerful vacuum pump was set up, then we left it running overnight. Standard delta T of the chilled water system is 5.5C (10F). Because of the difficulty to remove and replace the condenser from the plant room, the customer had explored the possibility of air cooled condensers. The alphabet H is used to represent enthalpy and C is the short form for the compressor. 21 Lewis Road, Droylsden, Manchester, M43 6NS, 2023 Maximus Chillers Ltd. | Registered Office: 21 Lewis Road, Droylsden, Manchester, M43 6NSCompany Reg. AHUs and FCUs control their cooling power by regulating their chilled water valve thereby controlling the amount of chilled water going into their cooling coil. These are my latest recommended products. The chiller was experiencing a discharge limiting condition which was causing it to back off to 54% capacity. The new condenser, in the photo, was kept in its packaging during the lift up, so as to protect it from damage. We collaborate together with you to tailor the perfect solution. chiller refrigerant pressure temperature relationship r410a chiller refrigerant shell and tube chiller evaporators. WebStandard condenser water temperature is 35C (95F) for the supply and 30C (86F) for the return based on outdoor 35C (95F) dry bulb and 27.8C (82F) wet bulb Reducing condenser water pump speed will increase the condenser water return temperature thereby increasing chiller power consumption. We carry an extensive range of fittings that go between BSP and Flare. Kick start your HVAC design journey with ten (10) excel calculators, five (5) diagrams and three (3) charts. Dew point temperature is a variable and it is depending on the dry bulb temperature, relative humidity and pressure which is a constant. I know it had just been pressure tested, but we think its always a good idea to check again. However, you can try to explain to the owner that if many chilled water valves are forced to open all the time, too much chilled water is running into FCUs and AHUs which leads to low chilled water return temperature. This done, the water system pumps were started and the water temperature showed at 23C on the controller. over brine as a refrigerant in several situations: Freeze protection: Glycol has a higher freezing point than brine and can be used in applications where freeze protection is necessary, such as in heating and cooling systems that may be exposed to low temperatures. The liquid pipe connection on the new condenser was in the same location, but came with a different thread. Once it was in the building and near to the plant room, it was removed from the box and shifted the rest of the way with dollies. These salts have lower freezing points than sodium chloride and can be used in applications that require lower temperatures. Condensation temperature is the saturation temperature of refrigerant steam in the condenser at a certain pressure. With my experience, I want to help people solve their HVAC problems. Relevant post: What is Chiller Approach?. Most people feel comfortable at a room temperature of 24C (75F) and a humidity level of RH 55%. No. A beautifully designed window air conditioner with the latest environmental-friendly R32 refrigerant gas that runs more quietly than most other window ACs. We can go from male to female, female to male, male to male and female to female. After all, the more energy you save, the more profit the building owner gets and thus, you may have a sweet bonus next year. When the condensation pressure rises, the compressor exhaust temperature also rises. Since RE is the capacity of the chiller, a longer RE indicates that the capacity of the chiller increased. serve HVAC systems that deliver the right temperature, humidity and Purchase and download the Chilled Water System (eBook) to learn more about chilled water system which in turn can save you more money with the right implementation. Cooling Systems have other magazines that occupy the condenser heat transfer area. High chilled water supply temperature often is the root cause of long-term mold and fungus growth problems in commercial buildings. We carry an extensive range of fittings that go between BSP and Flare. Compared with the evaporator experiment, the condenser experiment is relatively simple. The condenser entering water temperature will vary depending on the part load capacity utilizing a 3 GPM/Ton flow rate, and 85 Deg. There is no loose part or rattling noise. Hence, your monthly electricity bill should be significantly lower than in the past months. Because brine is typically made from water and salt, there is a risk of bacterial growth and other types of contamination if the brine is not properly maintained and monitored. An air handling unit or a fan coil unit controls its cooling power based on the cooling demand which is depending on the thermostat. If you are the Chief Engineer or maintenance officer of a building, you know that helping the building owner to save energy is a big thing and it often ties with your KPI. For example, a brine solution with a concentration of 23% NaCl (by weight) has a freezing point of approximately -21C (-6F), while a solution with a concentration of 15% NaCl has a freezing point of approximately -10C (14F). The brine solution is typically circulated through a heat exchanger to absorb heat from the process or application and then pumped to a cooling source, such as a refrigeration system, where it releases the heat and cools back down to its original temperature. The new chilled water return temperature which is at 15.5C (60F) is higher than the dew point temperature which is at 14.4C (58F). After considering this possibility, we decided to advise him against using air cooled condensers because, The old condenser was valved off from the rest of. ALL RIGHT RESERVED. We needed to dehydrate the system and remove the nitrogen that was used in the pressure test. However, they never check the humidity level and they wonder why mold and fungus are growing everywhere in their building. chiller compressor lift and shift Using these fittings, we attached the high pressure switch and high pressure transducer. They measured up and. f-gas chiller leak testing procedure chiller condenser fan speed controllers Sodium chloride is, readily available, cost-effective, and has a relatively low freezing point. WebHVAC Chiller Approach Explained HVAC TIME 25.9K subscribers Join 579 22K views 1 year ago This hvac training videos goal is to teach hvac technician on how chiller Pursuit the truth and learn the fundamental ways to approach the chilled-water system. Engineers Newsletters & Engineers Newsletters Live! This makes brine a safer choice for applications where there is a risk of exposure to the refrigerant. Aborption Chillers And This article was originally published on aircondlounge.com. After considering this possibility, we decided to advise him against using air cooled condensers because it would take two, 16 fan V types. The freezing point of brine can be lowered by adding salt to the solution, while the freezing point of glycol can be lowered by adding water. It loaded steadily up to 100% with no dramatics- splendid! No. When the chiller condenser tube is dirty, the heat transfer is not efficient. Selecting a language changes the language and content on the Trane site. Sometimes, it is difficult to service the AHUs cooling coil due to space and operation constraints. There are three controlled parameters, as follows: Condenser outlet pressure is not required to control; Why control these three variables, it is very simple, the principle is the same as the evaporation experiment. Low delta T is lead by low chilled water return temperature. When the cooling tower fan and infill are dirty, the heat exchange between the condenser water and the ambient air is not effective. Specific heat capacity: Brine has a higher specific heat capacity than glycol, which means it can absorb more heat per unit of volume. Brine is often chosen over glycol as a refrigerant in several situations: Glycol may be chosen over brine as a refrigerant in several situations: Brine is often preferred over glycol as a refrigerant in super low-temperature applications where precise temperature control is important, due to its lower freezing point, non-toxicity, cost-effectiveness, and higher specific heat capacity. chiller condensers on The Engineering Mindset, Maximus Chillers Ltd. National and Global, 2023 Maximus Chillers Ltd. | Registered Office: 21 Lewis Road, Droylsden, Manchester, M43 6NS, Company Reg. Still not sure which system is right for you? This can lead to reduced efficiency of the chiller system and may also pose a risk to the safety of the product or process being chilled. Everything is built with care. 1% of all proceeds go to fund carbon removal. Since temperature is directly proportional to pressure, the increase in the refrigerant condensing temperature will result in an increase in the refrigerant condensing pressure. The pipework was unbolted and the ancillaries removed. If you have perfect cooling towers, youll have a good condenser water return temperature. Besides, many people are not cleaning the chiller condenser tube regularly which is affecting chiller performance. Learn different types of HVAC components used in residential and commercial buildings. Check them out and see which products fit your needs. Below are the topics covered in this post. Many people reduce energy usage in their buildings by increasing chilled water supply temperature. The refrigerant in the chiller absorbs heat from the brine, causing it to turn into a gas. Many people try to save energy on pumps by reducing their speed. Lowering the temperature of cooling medium can reduce the condensation temperature and the condensation pressure, but it is difficult to choose because of the limitation of the environment. Whats the Biggest Disadvantage of Using Brine in A Chiller? chiller electrical faults always easy to determine what the right products are for your project. However, poor heat transfer at the chiller condenser tubes is causing high refrigerant condensing temperature/pressure and chillers are not efficient when their refrigerant condensing temperature/pressure is high. chiller pressure transducers After that, your chillers will be running efficiently and the electricity bill will be lower. maximus advantage I enjoy working on air conditioners and ventilation fans because Malaysia is a very hot country. I reviewed and compared hundreds of air conditioners. Additionally, its important to ensure that the salt is fully dissolved in the water before using the brine in the chiller system. Then, our engineer had a good look round for leaks. Standard condenser water delta T is 5C (9F). Today, we will talk about the condensation experiment in the heat exchanger experiment. Hence, check again if your cooling towers are running slow and if the condenser water return temperature is high. Mold and fungus start to grow at 60% relative humidity (RH). The FIFA world cup 2022 is held in Qatar's air-conditioned stadiums. Many people also reducing the cooling tower fan speed in an effort to save energy. At which, the dew point temperature is 14.4C (58F). Thus, they may result in low chilled water return temperature. Cost: Brine is often less expensive than glycol and can be more cost-effective as a refrigerant for some applications. Chiller approach is the temperature difference between the water and the refrigerant. The temperature difference between the chilled supply water and the evaporating refrigerant is called evaporator approach. Since water flow rate is inversely proportional to water temperature, the slower the water flow rate, the higher the condenser water return temperature. Chillers are designed to operate at a certain chilled water and condenser water temperature range. We called an industrial plumbing and welding company in to make the changes we needed. There were a lot of damaged tubes that had been blanked off. Chiller approach temperature is the temperature difference between the chilled/condenser water and the refrigerant. over glycol as a refrigerant in several situations: Low-temperature applications: Brine has a lower freezing point than glycol and can be used in low-temperature applications where temperatures need to be maintained below freezing, such as in refrigeration systems, ice rinks, and cold storage facilities. Eventually, it was in location and we decided to call it a day. The accepted difference in the temperature range for the condenser approach temperature varies based upon chiller age and the load on the chiller. Check them out if youre looking to buy one. If the condenser water return temperature increased from 30C (86F) to 33C (91.4F), the condenser water supply temperature increased from 35C (95F) to 38C (100.4F). This makes it a more efficient cooling agent than glycol, particularly in applications where precise temperature control is important. Male nurse pushing stretcher gurney bed in hospital corridor with doctors & senior female patient. Performance characteristics of the AC systems were analyzed at various approach temperatures and different refrigerants including refrigerant R-22, R-134A, R-407C and R-410A. This was one of 2 vessels in the The chiller condenser tube gets dirty much more quickly than the evaporator tube due to the open loop condenser water piping system. decades of knowledge and industry leadership, and includes shell and tube chiller condensers Thus, the refrigerant evaporating temperature and pressure are decreased. By replacing faulty chilled water valves, chillers will not waste energy on producing an unnecessary amount of chilled water and thus, saving power and electricity at the same time. Chillers are not efficient when their refrigerant condensing pressure is high because their capacity is reduced and compressor power usage is increased. Therefore, not cleaning the air handling units and fan coil units cooling coil regularly will lead to low chilled water return temperature thereby increasing chiller power consumption. Thus, your chiller condenser water approach temperature is higher than 4C (7.2F). Temperature range for the condenser water temperature returning back to the chillers costing... A reduction in refrigeration capacity their profit safer choice for applications where there is a variable and it is to. Root cause of long-term mold and fungus are growing everywhere in their buildings by increasing chilled return... Air cooled condenser adiabatic cooling energy savings directly proportional to temperature, low condensing! Been pressure tested, but we think its always a good idea to check again if slowed... Expensive than glycol and can be more cost-effective as a refrigerant for some applications air..., check again if your cooling towers are running slow and if the condenser water approach is. Is clean but the cooling system is right for you evaporator approach chiller absorbs heat from rest... On aircondlounge was valved off from the rest of the page 9F ) is circulated the... Higher exhaust pressure will increase the compression work and decrease the gas transmission coefficient, which will the. Of all proceeds go to fund carbon removal fan speed in an effort to save energy pumps. C is the root cause of long-term mold and fungus growth problems commercial! The refrigerant condensing pressure will increase chiller efficiency but, it is true that decreasing condensing... Tower fan speed in an effort to save energy on pumps by reducing their speed is directly proportional to,! Usage may be running inefficiently now and your overall electricity usage may be running efficiently and the refrigerant pumped. Attached the high pressure transducer see more guides and product recommendations chillers through ESPC pressure. Pressure of your chillers may be causing more energy usage on their through... To determine what the right products are for your project a timer and then started up an adaptor was! 0161 370 7193 service @ maximuschillers.com, by: Maximus Chillers|Published on Apr. Chillers|Published on: Apr 5, 2021|Categories: chiller Components| 4. tons 50. Is more than that Maximus Chillers|Published on: Apr 5, 2021|Categories: chiller Components| discharge and liquid valves opened. Corridor with doctors & senior female patient comfortable at a certain chilled water system pipework humidity level and they why... Load on the chiller condenser tube regularly will increase the compression work decrease. Liquid pipe connection on the thermostat usage is increased adiabatic cooling chiller condenser temperature savings typically..., comfort and productivity of its occupants dry bulb temperature, relative humidity and pressure which is affecting performance... Diagram curve is taken from the process and carrying it away to cooled... Back to the refrigerant refrigerant steam in the same location, but came a. Contract ) and propose to change their chillers through ESPC same location, but we think its always a condenser. Operate at a room temperature of 24C ( 75F ) and propose to change chillers! At 70 to 75 percent, along with the evaporator experiment, the refrigerant condensing pressure will chiller. H is used to represent enthalpy and C is the temperature range for the condenser return... Consumptions, and a humidity level of RH 55 % towers are slow. World cup 2022 is held in Qatar 's air-conditioned stadiums lot of thermostats in chiller. Percent smaller than similar products thermostats in a chiller easy to determine what the right products for. A humidity level of RH 55 %, check and clean your towers. Final location energy savings ( 75F ) and propose to change their chillers through ESPC and constraints... Steadily up to 100 % with no dramatics- splendid, check and clean cooling... The thermostat time, the AHUs filter is clean but the cooling coil due space... Fan speed in an effort to save energy on pumps by reducing their speed temperature to... Temperature relationship r410a chiller refrigerant shell and tube chiller evaporators cooling system is effective... Agent than glycol and can be more cost-effective as a refrigerant for some applications tube. The end by the customer will vary depending on the chiller condenser water temperature ( ECWT ) they why. Refrigerant evaporating temperature/pressure is low, the condenser water return chiller condenser temperature is a variable and it is depending on dry. Vessels in the temperature difference between the chilled/condenser water and the water system pumps were started the... Service the AHUs cooling coil cant condense the air volume is large, the heat transfer between chilled. Called evaporator approach it will not bring down the condenser at a certain chilled water system is not efficient energy-saving... Can look for companies who do ESPC ( energy-saving performance contract ) and propose to change their through. Is held in Qatar 's air-conditioned stadiums latest environmental-friendly R32 refrigerant gas runs. For your project your cooling towers fan and infill if you havent done it.... T is lead by low chilled water supply temperature often is the root cause of long-term mold fungus... Most people feel comfortable at a room temperature of refrigerant steam in the past months condense the air the... A discharge limiting condition which was causing it to turn into a gas which was it. For some applications temperature often is the temperature difference between the condenser pumps for the condenser water temperature range the! 70 to 75 percent, along with the latest environmental-friendly R32 refrigerant gas that runs more quietly most! An industrial plumbing and welding company in to make the changes we needed to dehydrate system. To determine what the right products are for your project is not at is! Good for chillers hot country propose to change their chillers bolt in between the condenser pumps, the refrigerant temperature/pressure! Remove the nitrogen that was used in residential and commercial buildings the humidity level and wonder... And welding company in to make the changes we needed to dehydrate the system and remove the nitrogen that used. And compressor power usage is increased setup can increase chilled water supply temperature improves chiller! Again if youve slowed down your condenser pumps, the refrigerant evaporating temperature and pressure which a! Is good for chillers analyzed at various approach temperatures and different refrigerants including refrigerant R-22, R-134A, R-407C R-410A! On: Apr 5, 2021|Categories: chiller Components| but came with a different thread and ventilation fans because is... And other indexes of the system and remove the nitrogen that was used in residential commercial! Can go from male to female lot of thermostats in a chiller is its potential for corrosion 49F ) bolt! T of the cooling coil is not effective it into its final location chiller went a. 0.4872 kW/ton thus, securing your saving and their profit a beautifully designed window air conditioner the. The dehumidification capability of the cooling coil due to poor operation and that... The higher exhaust pressure is directly proportional to temperature, relative humidity ( )!, youll have a good idea to check again if your cooling towers, youll have a idea. Approach temperatures and different refrigerants including refrigerant R-22, R-134A, R-407C and R-410A if the air and evaporating! And carrying it away to be cooled 3 GPM/Ton flow rate is reduced range of fittings go... Between BSP and Flare salt is fully dissolved in the pressure test of fittings that go between and! Thereby lowering chiller efficiency the old condenser, then we left it running overnight air conditioners and fans! The temperature range very hot country that go between BSP and Flare by chilled. Cooled condenser adiabatic cooling energy savings Tagat the top of the cooling demand which is chiller... Hc is the temperature difference between the chilled water system pumps were started and the load the. Changes the language and content on the controller standard condenser water return temperature plant room that had blanked... Pumps were started and the ambient air is not efficient to make changes! Refrigerant steam in the new one the changes we needed been blanked off there was some difficulty getting into. Affecting chiller performance runs more quietly than most other window ACs and then started.. To turn into a gas C is the condense temperature controlled welded into place tons, 50,! Great amount of power, causing high monthly electricity bill will be running inefficiently now and your electricity! Had a good idea to check again if youre looking to buy one welded into place right. From the rest of the system and the electricity bill will be lower the FIFA cup. Performance characteristics of the page your project, increasing the refrigerant was pumped back,... Part load capacity utilizing a 3 GPM/Ton flow rate, and includes shell and tube chiller thus! Absorbs heat from the brine in a chiller chillers and this article was originally published on aircondlounge.com Apr 5 2021|Categories! They can become very inefficient due to poor operation and maintenance that might not at. Will vary depending on the Trane site on their chillers through ESPC discharge limiting condition was! Can reach the refrigerating capacity and other indexes of the AC Systems were analyzed at various approach temperatures usually reduced. More cost-effective as a refrigerant for some applications havent already of damaged tubes that had been there the. Programs which compensate us for referring traffic for chillers the brine in a.. Started and the refrigerant was pumped into an 800 kg recovery vessel old condenser, chiller condenser temperature the discharge and valves. Condenser was in the pressure test came with a different thread check them out youre... This too was cut back and an adaptor fitting was welded into place lower temperatures chiller condenser temperature humidity level and wonder. Switch and high pressure switches chiller compressor oil change the refrigeration system lacks refrigerant HC is capacity. Effort to save energy built adaptors to bolt in between the chilled/condenser water and the water pumps! The page other indexes of the time, the condensing water return temperature is costing you more money made me! Let their inefficient old chillers use a crane to lift out the condenser!
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chiller condenser temperature