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What is a fan coil unit This article covers definition working principle classification components and project cost estimation A comprehensive guide for customers in the information gathering stage
What are the types of central air conditioning systems for large shopping malls This article explains the advantages disadvantages and applications of water cooled air cooled VRF air water and all air systems including selection tips
Choosing an air-to-water heat pump is complex. This guide covers 7 key areas: brand screening, spec verification, factory audits, case studies, warranty pitfalls, pricing, and certifications. AIKE offers high-value commercial heat pump solutions.
What air conditioning works best for factories? This guide compares packaged rooftop units, air-cooled modular chillers, combined AHUs, and high-static-pressure fan coil units. Learn how to choose based on factory type, ceiling height, and heat loads. Shandong AIKE offers factory-direct HVAC solutions—customized for your industrial facility.
Beijing, April 10, 2026- The 37th International Exhibition on Refrigeration, Air Conditioning, Heating, Ventilation, and Frozen Food Processing (CRH 2026) successfully concluded at the Beijing Capital International Exhibition Center. Under the theme "Digital Intelligence Shapes HVAC, Zero Carbon Starts a New Journey," Shandong Aike Group made a strong impression at Booth B2C87, showcasing 5 series and 12 core products, and successfully achieving its goals of brand promotion, customer acquisition, and technical exchange.
Recently, our company welcomed a group of important international visitors. This visit is not only an in-depth inspection of our company’s technical strength and product quality in the field of fan coil units, but also an important opportunity for both parties to deepen cooperation and seek common development.With the careful preparation and warm reception of the company’s leaders and technical team, the Singapore customer team first went deep into our company’s production workshop for a unique on-site visit. From the strict selection of raw materials to the fine polishing of finished products, every process demonstrates our company’s unremitting pursuit of quality.At the fan coil unit manufacturing site, the customer team showed great interest in our company’s rigorous production process and high-standard quality control system. They carefully inquired about each link in the production process and spoke highly of our company’s pursuit of excellence in detail control.As a professional manufacturer of fan coil products, our company has been working hard in technological innovation and product research and development . This time, the Singapore customer team expressed great appreciation for our company’s technical advantages in energy saving, environmental protection, low noise and high efficiency.“We attach great importance to our cooperation with your company. This on-site visit makes us more convinced that your products and technologies can fully meet our high standards.” The person in charge of the Singapore customer said sincerely after the visit. They gave special recognition to the high-efficiency performance and energy-saving effect of our company’s fan coil products, believing that this will bring them significant competitive advantages in future projects.This inspection not only deepened the understanding and trust between the two parties, but also laid a solid foundation for future cooperation. During the technical exchange session, the two parties conducted in-depth discussions on the latest technological developments and market trends in the field of fan coil units and reached a number of consensuses.In the future, our company and Singaporean customers will further strengthen technical exchanges and cooperation in the field of fan coil units and jointly promote product research and development and innovation. At the same time, the two sides will also work together to expand the international market and enhance brand influence through technology sharing and market collaboration.The visit of Singaporean customers is an important step in our company’s internationalization strategy, marking a new stage in the cooperation between the two sides. Looking to the future, we will continue to uphold the concept of innovation and quality, continuously improve the technical level and product quality, and provide more efficient, energy-saving and environmentally friendly air-conditioning equipment solutions for global customers.We believe that with the joint efforts of both parties, future cooperation will be more extensive and in-depth, and we will jointly create a better tomorrow. This inspection activity is not only a successful business exchange, but also an important milestone in our company’s journey towards globalization.
On November 27, 2024, Shandong Aike Holding Group Co., Ltd. welcomed an important customer delegation from Dubai. This visit not only deepened the understanding of each other between the two parties, but also opened a new chapter for our company’s cooperation in FRP water tank products in the international market.The visiting Dubai customers showed great interest in the technical strength and high-quality products of our company’s FRP water tank products. Through the on-site inspection, the customer team fully understood the design concept, production process and quality control system of our company’s FRP water tank.Accompanied by the management, the customer team visited the company’s production workshop, laboratory and R&D center. The on-site staff showed the customers in detail the production process, key technologies and quality inspection links of FRP water tanks, especially the company’s unique advantages in material selection, product design, anti-corrosion and pressure resistance. These displays won unanimous praise from customers and further deepened the trust between the two parties.As an enterprise in the FRP water tank industry, our company has made remarkable achievements in product performance, stability and environmental protection with years of technical accumulation and R&D innovation. During the inspection, Dubai customers expressed their technical recognition of the excellent performance of our company’s FRP water tanks in terms of corrosion resistance, high temperature resistance, and earthquake resistance.After the visit, the customer representative said: “We are very happy to visit your company in person and see your advanced production technology and high-quality products, which makes us more confident in the potential of cooperation between the two sides. We are deeply impressed by the innovative design and high efficiency and durability of your FRP water tanks. I believe this will be of great benefit to our future projects.”This inspection not only strengthened the understanding of the two sides, but also laid a solid foundation for future cooperation. The two parties reached a preliminary consensus on future cooperation in the field of FRP water tanks and discussed the promotion plan in Dubai and the Middle East market.Through continuous technical exchanges and cooperation, it is expected that the two parties will work together to promote the further popularization and application of FRP water tank products in the international market. In addition, the two parties also expressed that they will strengthen cooperation in product research and development and market development to jointly promote the innovation and development of FRP water tank technology.Shandong Aike Holding Group will continue to use its technical advantages in the field of FRP water tanks to help Dubai customers build projects in the Middle East, while further expanding the company’s influence in the global market. Both parties will uphold the concept of win-win cooperation and jointly create a more brilliant future.The visit of Dubai customers marks a solid step for Shandong Aike Holding Group in the international market. Through in-depth exchanges and cooperation between the two sides, we not only demonstrated the company’s superb technology in the field of FRP water tank products, but also opened a new door for future cooperation.Looking forward to the future, Shandong Aike Holding Group will continue to uphold the development concept of “quality first, innovation-driven, service first”, and strive to provide customers with more advanced, environmentally friendly and efficient water treatment equipment and services. We look forward to working hand in hand with Dubai customers to jointly create a new chapter in the international market for FRP water tank products!As a domestic research and development, production and sales enterprise of water tanks and related ventilation, fire protection, smoke exhaust, central air conditioning and other products, Shandong Aike Holding Group Co., Ltd. has been committed to providing global customers with high-quality fire protection and living water tank solutions. In the future, Aike Holding Group will continue to promote its internationalization strategy, continuously improve its technical strength and market competitiveness, and provide global customers with better products and services.
From the literal meaning, we can know that there must be differences in the materials of galvanized steel water tanks and stainless steel water tanks, but most people don’t know much about the two, and they don’t know where the difference is. So, today I will introduce to you the differences between galvanized steel water tanks and stainless steel water tanks.The difference between galvanized steel water tanks and stainless steel water tanks1. Difference in materialsGalvanized steel water tank: It uses galvanized steel plate as raw material, immerses the thin steel plate in the molten zinc pool, and adheres a thin layer of zinc on the surface. It is mostly produced by continuous galvanizing process, and the whole roll of steel plate is continuously immersed in the galvanizing tank to form a galvanized plate. There are also a variety of materials to choose from, such as: electro-galvanized steel plate, alloyed galvanized steel plate, composite galvanized steel plate, and single-sided and double-sided galvanized steel plate.Stainless steel water tank: It is made of stainless steel plate. Common stainless steel plates include 201 stainless steel and 304 stainless steel. Among them, 304 stainless steel is a water tank plate that can store domestic water. It meets the standards for food use, has stable physical and chemical properties, and is resistant to most acidic substances and alkali solutions.2. Difference in service lifeBecause the galvanized layer of the galvanized steel plate water tank will be constantly worn during long-term use, and due to the erosion of moisture, acid and alkali in the environment, its service life is generally about 5-10 years. The service life of a stainless steel water tank can be more than 50 years because it is not affected by corrosion and rust.3. Difference in corrosion performanceThe material of the stainless steel water tank makes it have excellent corrosion resistance, is not easily corroded by acids, alkalis, salts and other substances, and can adapt to various harsh environmental conditions. Although the galvanized layer of the galvanized steel plate water tank can play a certain anti-corrosion role, its anti-corrosion performance may be affected in some harsh environments, such as high temperature, high humidity, acidic soil, etc.4. Difference in safety performanceStainless steel water tanks are made of food-grade stainless steel materials, which will not produce harmful substances. At the same time, they have good strength and sealing performance, and will not leak or deform. Galvanized steel water tanks may rust due to zinc wear during use, affecting their safety performance.5. Difference in priceDue to the high material and processing costs of stainless steel, the price of stainless steel water tanks is generally higher than that of galvanized steel water tanks.6. Difference in hygieneGalvanized steel water tank: After the zinc on the surface of the galvanized steel plate is oxidized, a dense zinc oxide film will be generated to isolate air and water vapor to prevent corrosion and rust, but it is not recommended to store domestic water. The corrosion resistance is general and does not meet the standards for food use.Stainless steel water tank: Made of food-grade 304 stainless steel, the dense oxide layer on the surface can resist the erosion of chlorine molecules in the air and water, has good corrosion resistance, and has no secondary pollution to the water quality. The water quality will not cause harm to the human body if it is stored for a long time, and the water quality can be kept clean for a long time, with a higher hygiene coefficient.7. Differences in installationGalvanized steel plate water tank: assembled with bolts, and sealing strips are used during assembly to reduce the occurrence of corrosion, rust, water seepage and other problems caused by improper welding at the weld.Stainless steel water tank: There are two installation methods: assembled and combined. It can be assembled by welding or bolts. There are various installation methods, fast installation speed, no restrictions on the site, high flexibility, and the volume of the water tank can be increased or decreased at will.8. Differences in application fieldsGalvanized steel plate water tank: Galvanized water tanks have the characteristics of high temperature resistance, impact resistance, corrosion resistance, high strength, and not easy to deform. They can store hot water in bathing centers and hot springs, as well as temporary water storage tanks for building water supply storage, construction, industry, fire protection, geological surveys, etc.Stainless steel water tank: 304 stainless steel plate can store drinking water, reduce the water supply pressure of urban pipe networks, and the problem of insufficient water supply in water plants. It is used more frequently in high-rise residential buildings, schools, etc. In industry, due to the corrosion resistance of stainless steel plates, it can be used to store chemical solutions.The above is the difference between galvanized steel water tank and stainless steel water tank. I hope it will be helpful to you!
Fan coil unit is a common air conditioning equipment, mainly composed of fan coil unit body, controller, water pump, water pipeline, electrical control cabinet and other parts. The working principle of fan coil unit is to use water as the medium and use the heat carrying capacity of water to transfer cold and heat to achieve the purpose of indoor air temperature control.The fan coil unit is mainly composed of a fan, a heat exchange coil and a casing. It can be divided into standard and high static pressure types according to the external static pressure of the fan coil unit, and can be divided into two rows and three rows according to the number of rows of heat exchange coils. The heat exchange coil generally uses copper tubes with aluminum fins. The outer diameter of the copper tube is 10-16mm, the fin thickness is about 0.15-0.2mm, and the spacing is 2.0-3.0mm. The fan generally uses a double-inlet forward-curved blade centrifugal fan. The motor uses a capacitive 4-pole single-phase motor, three-speed speed, and the casing and condensate tray are insulated.With the help of fan coil units, indoor air is continuously circulated, so that it is cooled or heated through the coil to maintain the required temperature and relative humidity of the room. The cold water or hot water used by the coil is supplied by the centralized cold source and heat source. At the same time, the fresh air processed by the fresh air air conditioning room is sent to each air-conditioned room through a special fresh air duct to meet the hygiene requirements of the air-conditioned room.Compared with the centralized system, the fan coil air conditioning system has no large air duct, only water pipes and smaller fresh air ducts. It has the advantages of easy layout and installation, small building space occupation, and good individual adjustment. It is widely used in comfort air conditioning with low temperature and humidity accuracy requirements, large number of rooms, small rooms, and needs to be individually controlled.Fan coil control mostly adopts local control scheme, which is divided into simple control and temperature control:Simple control of fan coil: Use three-speed switch to directly manually control the three-speed conversion and start and stop of the fan.Fan coil temperature control: Use thermostat to automatically control the opening and closing of electric two/three-way valve, three-speed conversion of fan, or directly control the three-speed conversion and start and stop of fan according to the comparison and calculation of set temperature and actual detection temperature, so as to achieve constant temperature by controlling the water flow or air volume of the system.The working process of fan coil unit can be briefly described as follows: when the indoor temperature is higher than the set temperature, the controller will start the water pump, allowing water to flow through heat sources such as chillers or heat pumps to absorb cold and heat, and then the water will flow into the fan coil unit body, and transfer cold and heat to the indoor air through heat exchange plates or heat exchange tubes, lowering or raising the indoor temperature to the set temperature. When the indoor temperature reaches the set temperature, the controller will turn off the water pump and stop the fan coil.The working and control principle of the fan coil is to achieve precise control of indoor temperature and air volume and improve comfort through the linkage of water and air circuits and intelligent adjustment of controllers and sensors.Selection of fan coil units:Step 1: Clarify the type, specifications, air outlet position and other requirements of the selected unit1. When selecting a fan coil unit refrigeration unit, the design preheating load is matched with the unit's sensible heat load. In most cases, the coil has sufficient latent heat capacity to meet the design requirements. If outdoor air is used, the load and calculation formula are adjusted accordingly: water temperature rise (℃) = air temperature rise (℃ db).2. Heating: Usually, the unit selected for cooling has sufficient heating capacity, and the heat return is selected according to the same water flow rate, that is, the inlet water temperature is used to meet the required indoor heating load, indoor heating load , inlet air temperature (℃).3. Cooling: Indoor preheating cooling load , indoor total heat cooling load , inlet air temperature (℃db/℃wb), inlet water temperature (℃), air volume.Step 2 of fan coil unit selection: Determine parameters such as unit specifications, water volume, required water temperature and pressure drop.1. Make it clear whether the fan motor bearing uses an oil-containing or oil-free shaft pump. If an oil-free shaft pump is used, it should be refueled regularly during use according to regulations.2. Make it clear whether the water pipe of the selected unit is left or right (related to the pipeline layout, etc.).3. In winter, hot water is used, and the water temperature generally does not exceed 60℃, which can reduce scaling and reduce the alternating effect of cold and hot, which weakens the expansion force of the expansion tube and affects heat transfer.4. Pay attention to the insulation measures of the outlet water to avoid condensation during summer use and damage to indoor buildings.5. Set an air release valve at the highest point of the unit coil.The selection of fan coil units is relatively simple, and the price of fan coil units is not expensive, and maintenance is also relatively convenient, but choosing a suitable fan coil unit will undoubtedly add icing on the cake for the operation of the central air-conditioning system and make home life like a fish in water.
As part of the central air conditioning system, the fan coil unit is responsible for regulating the indoor temperature and humidity, but various faults may occur during use. This article introduces some common faults of the fan coil and their troubleshooting methods in detail to help users quickly solve the problem and ensure the normal operation of the air conditioning system.
