/中文
中文 2019-04-22T07:30:41+00:00

鰭片式盤管製造商

AHU coil
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years’ experiences in HVAC fields
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industry leader’s trusted OEM
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custom-made HVAC coil products
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ISO 9001 certified
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ISO 14001 certified

One Stop OEM Solution

Established in 1989, YehJeh has built its reputation by offering high quality, unparalleled flexibility , exceptional manufacturing efficiency.

Products

making your ideas come alive.

Appliance

Evaporator coil

Indoor AC

ac coil

Condenser coil

Outdoor AC

condenser coil

Evaporator coil

Dehumidifier

Dehumidifier coil

Transportation

Evaporator coil

Bus/Van AC

evaporator coil

Evaporator coil

Refrigerator truck

Truck refrigeration coil

Condenser coil

Refrigerator truck

truck refrigeration condenser

Commercial

Cooling coil

Ice maker

ice maker condenser

Cooling coil

Ventilation system

cooling coil of ventilation

Cooling coil

Wine fridge

refrigerator evaporator

Industrial

Evaporator coil

AHU

AHU coil

Condenser coil

Air cooled condenser

air cooled condenser coil

Direct Expansion Coil

DX coil

DX coil

Special

Copper Pipework

Ice maker

copper coil heat exchanger

Copper Tube Coil

ice maker

copper tube coil

Heat Exchanger

Copper fin

copper fin heat exchanger

News and Events

about YehJeh and HVAC.

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CAN’T FIND WHAT YOU ARE LOOKING FOR?

We Provide Customized Solutions

Truck refrigeration condenser 2020-01-22T00:43:14+00:00

Truck refrigeration condenser

truck refrigeration condenser

Truck refrigeration condenser

Application

Truck refrigeration units

Refrigeration unit for bus/van

Vehicle refrigeration equipment

More transportation application…..

YehJeh provide robust and reliable truck refrigeration condenser which can use to roof type, front type or under-mount. Not only for truck, our products optimized for a wide variety of transport applications for bring passenger comfort and ensure system reliability. Offering reliable transport of refrigerated goods is critical to your business. And with our truck refrigeration condenser you can feel confident in the refrigeration system on your unit.

Transport refrigeration is one of the most challenging refrigeration applications, and therefore transport refrigeration systems are required to operate reliably in much harsher environments than stationary refrigeration equipment. Due to the wide range of operating conditions and constraints imposed by available space and weight, transport refrigeration equipment need superior response and control, corrosion resistance and high stability and reliability.

Transport refrigeration is essential in today’s society, to preserve and protect food, drugs and medical supplies for people worldwide. Our products used in transportation systems are suitable in every weather condition, from freezing cold on the open road or idle in the blazing sun. Our engineering expertise is guaranteed to exceed your expectations and achieve your goals within the budget.
Different from storage refrigeration system, transport refrigeration equipments operating under constant shocks and vibrations required high stability and reliability. There are many joints or connections in a condenser coil that can weaken over time and cause a refrigerant leak problem. We master the art of brazing process for u-band and inlet/outlet pipe, including solder volume, process time and thermal budget control. Excellent process management makes solder joints stronger and has better reliability to avoid leak. YehJeh provide robust and reliable truck refrigeration condenser with stainless steel components for higher performance, durability, and reliability.
Truck Refrigeration Coil 2020-01-22T00:42:59+00:00

Truck Refrigeration Coil

Truck refrigeration coil

Truck refrigeration coil

Application

Truck refrigeration system

Refrigerator truck

Frozen truck

More transportation application…..

As a leading manufacturer of high quality truck refrigeration coil, YehJeh can provide you total solutions of coil manufacturing for vans, trucks, trailers, railway trucks, air, sea-going and intermodal containers.
Cold chain transport is a temperature-controlled supply chain used in industries such as pharmaceuticals, food and beverage and chemicals. Our refrigeration coil allow temperature to be well controlled and sensitive products keeps fresh at their optimum temperature.

YehJeh has built its reputation by offering high quality truck refrigeration coil and on-time delivery services. Since 2009, we have provided OEM services to DENSO Taiwan who is a leading supplier of advanced automotive technology, systems and components for major automakers.Innovative products and components can only be realized if they can be manufactured. Our manufacturing experience and mastery of hvac knowledge can make your ideas alive.

Cold chain is a temperature-controlled supply chain used to preserve and to extend and ensure the shelf life of temperature sensetive products. Especially important for the pharmaceutical industry, this subject now gets a lot of attention. If drug quality is compromised by exposure to inappropriate conditions during transport and storage, drug consumers may suffer adverse consequences.

So, the reliability of refrigeration system in cold chain is most important. The need to create a reliable system to keep products cold during the lengthy journey from the manufacturer to the point of use. YehJeh devote to develop cooling solutions to meet the precise temperature and humidity control and management of high sensible applications. We offer high quality and reliable truck refrigeration coil to protect the value of your shipment.

YehJeh keep up the efforts to develop extensive know-how in precision cooling field which can help to well manage refrigeration system of cold chain.
Air cooled condenser 2020-01-22T00:38:51+00:00

Air cooled condenser

air cooled condenser coil

Air cooled condenser

Application

Air cooled chiller

A coil

Server room air conditioner

More industrial application…..

YehJeh provide custom solution for air cooled condenser with a wide range of types and capacities. Our tailor-made air cooled condenser can meet your needs for a wide range of comfort and process cooling applications including shopping mall, office, hospital and school.

A typical air cooled chiller uses propeller fans or mechanical refrigeration cycles to draw ambient air over a finned coil to condense the refrigerant. It may contain multiple or single compressors. The refrigeration cycle of an air-cooled chiller includes two important processes:(1) In evaporator, the evaporation of the liquid refrigerant absorbs heat and lowers the temperature of the chilled-water system. (2) In air cooled condenser,

In mission-critical facilities, it is important to make sure that all equipment is reliable and efficient and that the systems are easy to operate. It’s important to select the right equipment, an air cooled chiller is the best option to reduce your life-cycle costs and support future needs. Installing an air cooled chiller offers many benefits. In the long term, air cooled chillers offer a low total cost of ownership with competitive first costs, minimal operating and maintenance costs, ,low risk of expensive downtime and easy to be expanded if capacity increasing. Air cooled chiller also offer many advantages including high efficiency, precise temperature control, high reliability and easy maintenance.

The most common reason to install an air cooled chiller instead of a water cooled model is convenience. Whereas a water cooled chiller requires several additional pieces of equipment, including large external cooling towers, an air cooled model is much smaller and self-contained. Installation is simpler, and there are fewer space considerations. An air cooled chiller is easier to place, often in a fenced off area of a parking lot or other open external area.

A commonly asked question is what is the difference between a water cooled chiller and air cooled chiller? An air- ooled chiller has a condenser that is cooled by the environment air. The water-cooled chillers have water cooled condenser connected with cooling tower and are usually preferred for medium and large installations where there is sufficiency of water.
Copper fin heat exchanger 2020-01-22T00:41:05+00:00

Copper fin heat exchanger

copper fin heat exchanger

Copper fin heat exchanger

Application

Mining machine

Crawler Crane

Heavy-duty vehicles

More hvac coil…..

YehJeh provide robust and reliable copper fin heat exchanger which can operating in harsh environment including mining machine and any heavy-duty vehicles, marine application and military equipment. Copper fin heat exchanger has superior thermal conductivity, corrosion resistance and strength compared with aluminum, it is the ideal choice for demanding environments. Cu provide the great corrosion resistance to maximize service life. They are also suited to more abrasive environments because unlike a pre-coated fin, a copper finned coil will not wear out and fail.

Heat exchangers are devices that transfer heat in order to achieve desired heating or cooling. An important design aspect of heat exchanger technology is the selection of appropriate materials to conduct and transfer heat fast and efficiently. Several different fin material options exist, allowing the heat exchanger to operate in environments ranging from home appliance applications through to more aggressive coastal and manufacturing environments. YehJeh provide 3 key fin materials commonly offered in HVAC system: Aluminium, a pre-coated Aluminium with hydrophilic or hydrophobic coating and Copper.

Copper has many desirable properties for thermally efficient and durable heat exchangers. First and foremost, copper is an excellent conductor of heat. This means that copper’s high thermal conductivity allows heat to pass through it quickly. Other desirable properties of copper in heat exchangers include its corrosion resistance, biofouling resistance, maximum allowable stress and internal pressure, creep rupture strength, fatigue strength, hardness, thermal expansion, specific heat, antimicrobial properties, tensile strength, yield strength, high melting point, alloyability, ease of fabrication, and ease of joining.

The combination of these properties enable copper to be specified for heat exchangers in industrial facilities, HVAC systems, vehicular coolers and radiators. And also used in very harsh industrial facilities including fossil and nuclear steam generating electric power plants, chemical and petrochemical plants, marine services, and desalination plants.

YehJeh offering 2 types of copper tube are inner-smooth and inner-grooved, and 3 different sizes of diameter are 7mm, 5/16″ and 3/8″. Internally grooved copper tube of smaller diameters is more thermally efficient, materially efficient, and easier to bend and flare and otherwise work with. Smaller diameter coils have better rates of heat transfer than conventional sized coils and they can withstand higher pressures required by the new generation of environmentally friendlier refrigerants. Smaller diameter coils also have lower material costs because they require less refrigerant, fin, and coil materials; and they enable the design of smaller and lighter high-efficiency air conditioners and refrigerators because the evaporators and condensers coils are smaller and lighter.
Copper tube coil 2020-01-22T00:41:20+00:00

Copper tube coil

copper tube coil

Copper tube coil

Application

Ice maker

More special application…..
YehJeh provide custom copper tube coil OEM service for your special need.
Copper coil heat exchanger 2020-01-22T00:40:48+00:00

Copper coil heat exchanger

copper coil heat exchanger

Copper coil heat exchanger

Application

Ice maker 

More condenser coil and ac coil…..

YehJeh provide custom copper coil heat exchanger service for your special need.

DX coil 2020-01-22T00:41:56+00:00

DX coil

DX coil

DX coil

Application

Direct expansion coil (DX coil)

Server room cooling system

Internet data center cooling system

More DX coil…..

Direct expansion coil or DX coil is Yehjeh’s most important production. Compared with water coils, not only more difficult process , it requires more complicated copper fittings brazing and circuit design, more high-levels inspection standards. The quality and stability of products also need to be higher level to prevent leakage of filled refrigerant.

In direct expansion system, there is possibility of refrigerant leakage for long distances, and the cost of the refrigerant would be high. Also the pressure drop in the line would decrease evaporator coefficient of performance and efficiency.The direct expansion coil is preferred for air conditioning purposes, where the evaporator is very near to the compressors. This is direct method of cooling the substance and, therefore quite efficient.

A direct expansion air conditioning unit, also called a DX unit, cools indoor air using a condensed refrigerant liquid. The DX coil cools air by passing the condensed refrigerant through a heat exchanger inside the building to be cooled. In this part of the unit, called the evaporator, the refrigerant expands as it absorbs heat, eventually converting to a gas.

Advantages of Direct Expansion System: low installation costs, ease to adjust and balance the system, minimum ceiling or wall space needed, low energy consumption, low maintenance costs. individual section can be operated without running the entire system in the building, comfort under varying load conditions and good relative humidity control.

We run 100% bubble leak testing consists of pressurizing the coils with Nitrogen,submerging it into a water tank and watching for escaping bubbles. Before we ship your coil,we run all of our products through a rigorous final inspection check list. We believe quality mindset is essential in any organization to be successful and also sustain that success.
AHU coil 2020-01-22T00:38:35+00:00

AHU coil

AHU coil

AHU coil

Application

Air handling unit (AHU)

Air handler

Air handling unit

More evaporator coil…..

The AHU coil is one of the most important parts of the air handling units. It is made up of copper tubing of several turns and covered with the fins to increase the heat transfer efficiency of the AHU coil. Direct expansion (DX) coils, most common coil type of AHU, are typically either a slab coil, an A-Coil, or an N-Coil with each coil serving its own purpose for configuration and heat exchange inside the air handler. The type of coil inside the air handler depends on the design requirements of the air handler and what the manufacturer has available for the design requirements. In direct expansion (DX) type of the central air conditioning plants the refrigerant flows though the cooling coil, which also acts as the evaporator of the plant. In case of the chilled water system the chilled water from the chiller flows through the cooling coil. What is important about the coil is the heat exchange ability of the coils.

We provide custom solution for DX type and chilled water coil for your unique business requirements.

An Air Handling Unit (AHU) is used to re-condition and circulate air as part of a HVAC system. The basic function of the AHU is take in outside air, re-condition it and supply it as fresh air to a building. All exhaust air is removed, which creates an acceptable indoor air quality. Depending on the required temperature of the re-conditioned air, the fresh air is either heated by a recovery unit or heating coil, or cooled by a cooling coil.

The AHU is used to control the following parameters of the space:temperature, humidity, air movement and air cleanliness. The temperature is controlled by AHU coil within the air handling unit air stream, such coils may be direct or indirect in relation to the medium providing the heating or cooling effect. If dehumidification is required, then the cooling coil is employed to over-cool so that the dew point is reached and condensation occurs.

The air handler coil should be checked for dirt and debris which may have been sucked into the air handler inadvertently. Some air handlers have the filters inside them before the coil.Any dirt or debris on the coil should be removed immediately as these things will impede airflow through the air handler and throughout the entire system as a whole. Aluminum fins is a great filter and it is a dust collector too. Aluminum fins do approximately 70% of the heat transfer than copper tube’s 30%. Regular maintenance and cleaning is the best way to maintain heat exchanger efficiency.
Refrigerator evaporator 2020-01-22T00:42:41+00:00

Refrigerator evaporator

refrigerator evaporator

Refrigerator evaporator

Application

Wine refrigerator

Wine fridge

Wine cooler

More refrigeration application…..

YehJeh offer refrigerator evaporator OEM service for wine cooler applications. A wine cooler, also called a wine refrigerator, wine cellar, or wine chiller, is specifically designed to control the three major factors that affect your wine’s longevity and taste. These are temperature, humidity, and UV light. Because red and white wines are best stored at different temperatures, wine coolers come with two temperature zones to keep different types of wine at their optimal state.

We provide custom solution for precise temperature control. Wine coolers let you control the temperature of your wine and humidity levels where you store your wine. There are many varieties of wine coolers available, offering different designs and sizes for all kinds of wine collectors including countertop wine coolers, freestanding wine coolers and integrated wine coolers or called under counter wine coolers.

On the market, there are basically two types of wine coolers to choose from, compressor wine cooler and thermoelectric wine coolers. Compressor Wine Coolers has advantages including powerful cooling capacity and better temperature control.

Similar to a regular refrigerator, a compressor models wine cooler with refrigerator evaporator is an appliance designed specifically for the preservation of the wines, being fitted with dedicated shelves and boasting some features that will keep your wine in the best conditions. Compressor units function just like a mini fridge would.It needs refrigerants such as freon to generate cold air within the fridge. When the thermostat inside senses the temperature has risen above the set degree, the compressor kicks on and cools the entire unit back down.

Our R&D team provides design recommendations based on product requirements, selects the best materials, adjusts the most appropriate specifications, and provides the most competitive pricing through integrated design integration services.
Ice maker condenser 2020-01-22T00:42:24+00:00

Ice maker condenser

ice maker condenser

Ice maker condenser

Application

Ice maker

Ice cream machine

Frozen dispensed beverage machine

More condenser coil and ac coil…..

YehJeh’s ice maker condenser products have wide range applications. Our variety fin and copper tube material and flexible process can meet your special needs. Nearly every type of food service business needs an ice machine. Commercial ice machine parts are typically used in ice makers for foodservice, lodging, healthcare and convenience store applications.

Commercial ice machines generally fall into 4 basic types including modular or ice machine head, undercounter ice machines, countertop ice dispensers/makers, and combination ice/water machines. The ice shape can fall into 5 types including full-cube ice, half-cube ice, commercial nugget ice, commercial flake ice and commercial gourmet ice.

There are 3 types of ice maker condenser. The most popular type, air-cooled ice machines are equipped with fans that move fresh air across their condensers to cool the equipment. A popular alternative to air-cooled ice machines is equipment with remote condensers. Instead of being contained within the ice maker itself, a remote condenser is housed in a piece of equipment that is installed in a separate location,the biggest advantage being that they move the noise- and heat- generating components of an ice machine outside the building. A third category of ice machine is the water-cooled type. The establishments that benefit the most from water-cooled ice machines are ones with water-circulating chiller systems that are often significantly more efficient than other types.

Whether air-cooled, water-cooled or remote type, the condenser is a device or unit used to condense a substance from its gaseous to its liquid state, by cooling it. In so doing, the latent heat is given up by the substance and transferred to the surrounding environment. Aluminum fin designed to maximize heat exchanger’s surface area in contact with the cooling medium surrounding it. So, the performance of Aluminum fins punching process has great effect on heat exchange efficiency. Our engineering team optimize the parameters of fin press machine including height, speed, stroke, pressure and stamping time according to different material(Aluminum or Copper) and fin thickness.
AC coil 2020-01-22T00:37:15+00:00

AC coil

ac coil

AC coil

Application

Split-type air conditioner (indoor)

Multi split system air conditioner

Wall mounted indoor unit

More ac coil and evaporator coil…..

AC coil of split type air conditioner is one of the most important products of YehJeh. We are dedicated to heat exchanger OEM service and have been working with Taiwan’s TOP2 air-conditioning manufacturer for more than 10 years. Taiwan is located in the subtropical region. The wet climate is a tough test for product quality. Rigorous process and quality management let YehJeh become a industry leader and gain the trust of customers.

YehJeh provide OEM service combined design integration. After receiving the customer’s product drawings, we will analyze specifications and material and feedback most professional and appropriate advice. Since the customer’s needs are quite diverse, the moulds of each factory cannot be readily available. Our R&D team can minimize adjustment to meet customer needs, provide complete design drawings and list all material specifications.

AC coil evaporator is one of the most important components in the HVAC system. Selection of materials and quality control of the process will greatly affect the product performance. The ac coils we manufactured are mostly direct expansion coils and are mainly used in air conditioner system as home appliances, We execute well brazing process control and 100% leak test to ensure refrigerant in the closed system does not leak out.

During the operation of the in-door unit of split-type air conditioner system, condensation water will be generated. To prevent water droplets from being blown into the room, hydrophobic aluminum fins are usually used as materials. The condensed water can effectively flow along the fins to the water tray. The flowing water can also carry the dust on the fins at the same time so that the fins can contact with indoor air more effectively. The dust-covered fins will reduce the surface area of ​​the fins and reduce the heat exchange efficiency.

Evaporator coil 2020-01-22T00:42:11+00:00

Evaporator coil

evaporator coil

Evaporator coil

Application

Bus air conditioner

Automobile air conditioner

Portable air conditioner

More evaporator coil …..

Evaporator coil and condenser coil are two basic parts of an air conditioner or heat pump. Different from condenser coil, the evaporator coil has a relatively complicated circuit design and the type of copper fittings is also more complex. YehJeh has 30 years experience of hvac coil manufacturing , and completely mastered knowhow and quality control on brass welding. Rigorous and 100% leak test before shipping ensure that product is leak free.

It is in the evaporator coil where the actual cooling effect takes place in the refrigeration and the air conditioning systems. For many people the evaporator coil is the main part of the refrigeration system and they consider other parts as less useful. The evaporators are heat exchanger surfaces that transfer the heat from the substance to be cooled to the refrigerant, thus removing the heat from the substance.

The evaporators are used for wide variety of diverse applications in refrigeration and air conditioning processes and hence they are available in wide variety of shapes, sizes and designs. They are also classified in different manner depending on the method of feeding the refrigerant, construction of the evaporator, direction of air circulation around the evaporator, application and also the refrigerant control.

Evaporators are made from aluminum and copper. Both these two materials have their own advantages and disadvantages. The aluminum and copper evaporator differ in the strength, heat conductivity, appearance and weight. YehJeh’s product use copper tube only because its advantages listed following: (1) Copper is superior to aluminum in heat conductivity (2) Copper is much easier to repair on field than aluminium. Many times, when aluminium coils are damaged they need replacement. (3) The coils made out of copper are much more stronger than aluminium.
Dehumidifier coil 2020-01-22T00:41:36+00:00

Dehumidifier coil

Dehumidifier coil

Dehumidifier coil

Application

Dehumidifier

Humidity control unit

Dehumidifier in AHU

More appliance application…..

Dehumidifier coil is one of the most important product of YehJeh. Dehumidifier condense the moist air on evaporator, and evaporator cooling efficiency is the key of the performance of dehumidifier. The design of  coil of various manufacturers have itself unique technology, YehJeh is a professional OEM manufacturer who can meet any needs of your product manufacturing.

You’ve made the first step to living in a healthier home—recognizing that your living space is having humidity issues. Household dehumidifiers are useful appliances that help maintain preferred, and healthy, humidity levels within your space. They do so by working to cleanse the air of excess moisture and prevent mold, bacteria and other particulates from growing, all of which could lead to a variety of health issues in the long-run.

Dehumidifier coil is used as evaporator in the most common mechanical/refrigerative dehumidifiers. This type of dehumidifier operates in the same way as air-conditioning system. Refrigerant achieves the purpose of endothermic and exothermic by changing phase state. When moist air passes through the cooled evaporator, it comes into contact with the coil and begins to cool down so it can no longer hold in moisture, and the process of condensation occurs. The water collects on the evaporator coil and drips down into the tank located below.

For the most efficient dehumidifier, you should clean the unit at least once or twice every month it’s in use. Over time, dust and debris can collect on different areas of the dehumidifier, including on both the heating and cooling coils. This accumulation can cause damage to the unit if not cleaned properly, which can eventually prevent the unit from working.

Cooling coil 2020-01-22T00:39:39+00:00

Cooling coil

cooling coil of ventilation

Cooling coil

Application

Fan coil unit (FCU)

Concealed duct type FCU

Ceiling concealed fan coil unit

More cooling coil …..

Cooling coil as evaporator in air conditioners remove heat from a particular space and provide cooling that makes your living environment comfortable. Cooling coil facilitate heat absorption from indoor spaces. They’re usually made of copper — a material that provides easy heat transfer, resistant to corrosion and great machinability. Coils is equipped with additional aluminum fins or copper fins with increase the surface area for heat release.

Fan coil units are a type of air handling unit designed to supply conditioned air to a room or zone. The basic components that make up a fan coil unit are a finned-tube cooling coil or heating coil, fan section and filter. YehJeh can manufacture cooling coil for all types of FCU system including wall-mounted, ceiling-mounted, belt-drive and ducted type.

A fan coil unit (FCU) is a simple device consisting of a heating and/or cooling coil and fan. It is part of an HVAC system found in residential, commercial, and industrial buildings. Due to good simplicity and flexibility, fan coil units can be more economical to install. A major advantage of the fan-coil unit system is that the delivery system requires less building space— it requires a smaller or no central fan room and little duct space.

FCU is most commonly used as a supplement to a building for which other HVAC systems provide the majority of the air-conditioning and provided with a small supply of outside air to ensure adequate ventilation. It will generally have a chilled water coil for cooling and either a hot water coil for heating or an electric heating element. Chilled water is provided from a chiller located in the central plant, and hot water form a boiler.

Aluminum fin and copper tube are the most important material of hvac coil and have strongly affected product performance. YehJeh provides various fin material and different size/thickness of copper tube for choice. Copper fin are also an option allowing the product to have better strength and corrosion resistance.
Condenser coil 2020-01-22T00:39:09+00:00

Condenser coil

condenser coil

Condenser coil

Application

Split-type air conditioner (outdoor)

Multi split system air conditioner

Air conditioner outdoor unit

More condenser coil and ac coil…..

Condenser coil of split-type air-conditioning system is an outdoor component. In wet climates such as Taiwan, the corrosion resistance of metal parts is the key to product reliability. The location of copper pipe welding is the most fragile part. YehJeh has abundant experience and technology know how of process control for u-band auto brazing and inlet-outlet pipe welding.

Faced with a wide range of product types, automatic brazing process require precise parameter control such as temperature, track speed, solder amount, brazing position, etc. In addition to years of experience and mastery of the machine, we will optimize the parameters when creating a golden sample and ensure its reproducibility in mass production.

Condenser coil is one of the most important components in refrigeration device. The high-pressure superheated refrigerant vapor generated by the compressor will be condensed to liquid states when it passes through the condenser, and latent heat generated by the phase change will transfer to the surrounding environment. Use of cooling water or surrounding air as the coolant is common in many condensers. There are three types of water-cooled, air-cooled and evaporative, depending on the type of condenser used.

Depending on the needs of the condenser, the size and design of the condenser also vary. The condenser
coil manufactured by YehJeh has a wide range of applications in home appliances, transportation, industrial and commercial machines. We have abundant manufacturing experience for mass-production of appliances products and highly customized industrial products.

The heat transfer path in heat exchanger system is from the refrigerant to copper tube, then from copper tube to aluminum fins, and finally aluminum fins transfer heat to surroundings. The degree of adhesion between copper tube and aluminum fin is key factor of heat transfer. Duo to thermal resistance of air is greater than metal, if copper tube and aluminum fin are not in perfect contact, air will be added to the heat transfer path. The contact between copper tube and aluminum fin is controlled by the tube expansion process. Yehjeh uses an automatic mechanical tube expanding machine to make copper tube expanding in a true circle and 100% contact with aluminum fins. In addition to the advantages of stable quality, it also has faster processing speed.
product example 1 2018-05-10T17:25:00+00:00

Evaporator coil

ac coil

more evaporator coil…

more appliance application…

Evaporator coil

Application

Split-type air conditioner (indoor)

Multi split system air conditioner

Wall mounted indoor unit

Description

Evaporator coil of split type air conditioner is one of the most important products of YehJeh. We are dedicated to heat exchanger OEM service and have been working with Taiwan’s TOP2 air-conditioning manufacturer for more than 10 years. Taiwan is located in the subtropical region. The wet climate is a tough test for product quality. Rigorous process and quality management let YehJeh become a industry leader and gain the trust of customers.

The evaporator coil is one of the most important components in the HVAC system. Selection of materials and quality control of the process will greatly affect the product performance. The evaporator coils we manufactured are mostly direct expansion coils and are mainly used in air conditioner system as home appliances, We execute well brazing process control and 100% leak test to ensure refrigerant in the closed system does not leak out.

YehJeh provide OEM service combined design integratio. After receiving the customer’s product drawings, we will analyze specifications and material and feedback most professional and appropriate advice. Since the customer’s needs are quite diverse, the moulds of each factory cannot be readily available. Our R&D team can minimize adjustment to meet customer needs, provide complete design drawings and list all material specifications.

PRODUCT backup 2018-05-03T16:54:55+00:00

Our Work

DOLORE MAGNA ALIQUA. UT ENIM AD MINIM VENIAM, QUIS NOSTRUD EXERCITATION ULLAMCO LABORIS NISI UT ALIQUIP.

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mission and vision 2019-10-01T07:25:58+00:00

Mission

“Show people  our commitment  to  professionalism  at every opportunity.”

  • Profession
  • Passion
  • Integrity
  • Sustainability
yehjehmission
yehjehvision

Vision

“Richly cultivating Taiwan while reaching out to the world”

  • Taiwan
  • Asia
  • Europe
  • World

Logo Philosophy

Y as a logo shape, in addition to representing the company’s name, it also expects YehJeh to grow like a seedling. Use red and blue for cold and hot, representing us as a evaporator and condenser coil manufacturer and providing heat exchanger products OEM service.

yehjehphilosophy
yehjeh logo

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history 2018-04-26T16:26:09+00:00

History

“Review the past and look forward to the future.”

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employee benefits 2019-10-01T07:25:30+00:00

Work-life balance

“You can’t do a good job if your job is all you do.”

In addition to the birthday party, regular dinner party and year-end party, Yehjeh organizes overseas trips for employees every year, and also invites employees’ family members to join.

worklifebalance
yehjehtripmap
  • 1995  Philippines
  • 1996  Thailand
  • 1997 Surabaya + Bali
  • 1998 Phuket
  • 1999 SuperStar Aquarius
  • 2000 Guilin, China
  • 2001 Thailand
  • 2002 Sabah Malaysia
  • 2003 Shanghai-Hangzhou-Suzhou
  • 2004 Kyushu/Nagasaki,Japan
  • 2005 Sydney, Australia
  • 2006 Beijing, China
  • 2007 Netherland,Belgium,France
  • 2008 Xian,China
  • 2009 Kurobe Tateyama,Japan
  • 2010 Hunan Zhangjiajie,China
  • 2011 Boracay, Philippine
  • 2012 Hokkaido Furano,Japan
  • 2013 Okinawa,Japan
  • 2014 Guam
  • 2015 Kyushu,Japan
  • 2016 Singapore+Malaysia
  • 2017 Canada

We are in Canada 2017.10

yehjeh canada 01
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HOME 2019-04-22T06:05:28+00:00

HVAC Coil Manufacturer

AHU coil
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years’ experiences in HVAC fields
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industry leader’s trusted OEM
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custom-made HVAC coil products
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ISO 14001 certified

One Stop OEM Solution

Established in 1989, YehJeh has built its reputation by offering high quality, unparalleled flexibility , exceptional manufacturing efficiency.

Products

making your ideas come alive.

Appliance

Evaporator coil

Indoor AC

ac coil

Condenser coil

Outdoor AC

condenser coil

Evaporator coil

Dehumidifier

Dehumidifier coil

Transportation

Evaporator coil

Bus/Van AC

evaporator coil

Evaporator coil

Refrigerator truck

Truck refrigeration coil

Condenser coil

Refrigerator truck

truck refrigeration condenser

Commercial

Cooling coil

Ice maker

ice maker condenser

Cooling coil

Ventilation system

cooling coil of ventilation

Cooling coil

Wine fridge

refrigerator evaporator

Industrial

Evaporator coil

AHU

AHU coil

Condenser coil

Air cooled condenser

air cooled condenser coil

Direct Expansion Coil

DX coil

DX coil

Special

Copper Pipework

Ice maker

copper coil heat exchanger

Copper Tube Coil

ice maker

copper tube coil

Heat Exchanger

Copper fin

copper fin heat exchanger

News and Events

about YehJeh and HVAC.

yehjeh logo

CAN’T FIND WHAT YOU ARE LOOKING FOR?

We Provide Customized Solutions

CONTACT US 2019-06-18T05:44:55+00:00

WE ARE HERE TO ANSWER ANY QUESTIONS YOU MAY HAVE ABOUT OUR SERVICES. REACH OUT TO US AND WE’LL RESPOND AS SOON AS WE CAN.


SERVICES 2018-05-17T13:41:38+00:00

HVAC Coil OEM

OFFERING OEM TOTAL SOLUTION SINCE 1989

YehJeh is leading hvac coil OEM. We served 60+ customers and manufactured more than 3000 products for various applications. From materials selection to logistics service, our customer can get all they need in just “one-stop”.

Material Selection

ALUMINUM FIN AND COPPER TUBE RAW MATERIAL

Aluminum fin and copper tube are the most important material of hvac coil and have strongly affected product performance. YehJeh provides various fin material and different size/thickness of copper tube for choice. Copper fin are also an option allowing the product to have better strength and corrosion resistance.

Fin Material

copper fin

Copper

aluminum fin

Aluminum

Hydrophilic

Hydrophobic

Copper Tube

smooth copper tube

Copper tube-smooth

flat fin

Flat

corrugation fin

Corrugation

louvered fin

Single side louvered

dual side louvered fin

Dual side louvered

grooved tube

Copper tube-grooved

Design Integration

PERFECTLY MEET YOUR CUSTOMIZED REQUIREMENTS

Our R&D team provides design recommendations based on product requirements, selects the best materials, adjusts the most appropriate specifications, and provides the most competitive pricing through integrated design integration services.

copper fittings

Fittings Sourcing

BRASS AND COPPER REFRIGERATION FITTINGS, GALVANIZED STEEL ENDPLATE

We provide a variety of pipe, valves and fittings to help you finish HVAC coil projects of every customized requirement. Our fittings are manufactured by the most reliable and experienced company , they are experts for consistent quality and on-time delivery. Yehjeh has a strict incoming quality control to ensure consistent specifications.

Golden Sample & Mass Production

MAKE EVERY PRODUCTS LIKE GOLDEN SAMPLE

Golden sample is used for approval before mass production. The target of mass production is making every product same as golden sample. Yehjeh is hvac coil oem and has 30 years experiences in hvac coil manufacturing. Yehjeh has a reputation for process control and master the process knowhow.

Quality Control

“Quality mindset is essential in any organization to be successful and also sustain that success.”

We run 100% bubble leak testing consists of pressurizing the coils with Nitrogen,submerging it into a water tank and watching for escaping bubbles. Before we ship your coil,we run all of our products through a rigorous final inspection check list.

100% Leak Test

100percent leak test

ISO9001&14001

yehjeh iso9001 certified

Final Inspection

final inspection
hvac coil package

Logistics & Service

ON-TIME DELIVERY AND GLOBAL SERVICE

“Our delivery commitment to you is always based on knowledge rather than estimate.”

Instead of giving an unreachable delivery date, YehJeh systematically integrates materials, parts,processes and final packaging. Excellent delivery management allows us to provide the fastest and ontime delivery service.

yehjeh logo

Ready to Talk?

CAN’T FIND WHAT YOU ARE LOOKING FOR?

RESOURCES 2018-05-17T12:08:48+00:00
yehjeh logo

Ready to Talk?

CAN’T FIND WHAT YOU ARE LOOKING FOR?

PRODUCT 2018-05-17T05:26:00+00:00

Our Work

The range and types of products available are difficult to classify. Welcome to contact us, we can meet your individual requirements.

Appliance

Evaporator coil

Indoor AC

ac coil

Condenser coil

Outdoor AC

condenser coil

Evaporator coil

Dehumidifier

Dehumidifier coil

Transportation

Evaporator coil

Bus/Van AC

evaporator coil

Evaporator coil

Refrigerator truck

Truck refrigeration coil

Condenser coil

Refrigerator truck

truck refrigeration condenser

Commercial

Cooling coil

Ice maker

ice maker condenser

Cooling coil

Ventilation system

cooling coil of ventilation

Cooling coil

Wine fridge

refrigerator evaporator

Industrial

Evaporator coil

AHU

AHU coil

Condenser coil

Air cooled condenser

air cooled condenser coil

Direct Expansion Coil

DX coil

DX coil

Special

Copper Pipework

Ice maker

copper coil heat exchanger

Copper Tube Coil

ice maker

copper tube coil

Heat Exchanger

Copper fin

copper fin heat exchanger
ABOUT 2019-10-01T07:34:34+00:00

YehJeh

YehJeh founded in 1989 and specialized in the manufacture of hvac coil for 30 years. We always keep product quality as the best and trusted by customers. YehJeh has cooperated with international companies and provided OEM services for more than 10 years, such as Panasonic, Denso. We have gained recognition of stable and on-time delivery from the customers.

YehJeh’s new factory will be completed in July 2018. By then, the productivity of production capacity will be greatly increased, and the new and old customers will be able to provide better services. It is our mission and honour to continue to grow with customers.

yehjeh new factory
yehjeh iso9001 certified

Quality is in our DNA

“Quality mindset is essential in any organization to be successful and also sustain that success.”

Yehjeh provides customized evaporator and condenser coil OEM service, maintaining top quality and consistent for 30 years under high product complexity and tight products lead time. Compliance with iso9001 and iso 14001 certification is the basic requirement, allowing every employee to have the “Quality first” mindset  is our goal.

On-time Delivery

“Our delivery commitment to you is always based on knowledge rather than estimate.”

Instead of giving an unreachable delivery date, YehJeh systematically integrates materials, parts,processes and final packaging. Excellent delivery management allows us to provide the fastest and ontime delivery service.

yehjeh logo

Ready to Talk?

CAN’T FIND WHAT YOU ARE LOOKING FOR?