bsinghrawat003
10+ Views

AHU Coils: 6 Basic Types of Coated Coils You Must Know!

Protective coil coatings are highly beneficial in increasing the efficiency of the condensing units like air conditioners and refrigerators. For instance, hydrophilic coated coils enhance the life of the systems by offering long lasting corrosion protection to the appliances. This article will assist you to understand different types of coating techniques and their usage. Read here!

The fins on condenser and evaporator coils are manufactured using aluminium and copper which are relatively resistant to corrosion without applying any type of coating. However, due to harsh environmental conditions, every condenser and evaporator coil manufacturer in India now aims to use various types of protective coil coatings including Hydrophilic, Heresite, Technicoat, etc. Selecting and applying a proper AHU coil coating significantly helps to extend the service life of the gadgets as compared to an uncoated or unprotected AHU coil.

There are a plethora of coil coating techniques available in the market that immensely help to increase the efficiency of the condensing units. Some of them are-

Technicoat – Technicoat is an air-dried and raisin based thermoplastic material that is made using baked phenolic coating. This type of coating is designed in a way that it can be used in salt-water environments. Technicoat coating has been successfully used in water treatment plants, food processing plants, paper mills, oil and gas related plants, odd shore drilling rigs, hotels, hospitals and laboratories etc. This type of protective coating is easy to apply and requires minimal maintenance as well.

Hydrophilic – Hydrophilic is a type of coating that helps to protect the coils of the condensing units from getting corroded. Hydrophilic coated coils are rust resistant and are protective against various types of damaging environments such as coastal salt air, acid rain, and humid temperature. This type of coating improves the operating capacity of the coils and also aids in reducing excess energy consumption.

Heresite – Heresite is an over-cured modified phenolic coating and is dark brown in colour. Being extremely flexible for coating it is majorly used in safeguarding HVAC/R equipment against corrosive industrial environment, including marine/offshore applications. It is one of the most used coatings worldwide and is highly resistant to abrasion and chemicals as well.

E-coat – Electrocoating or E–coat is an environment-friendly wet paint process that is used on products such as primers or vehicles. This type of coating helps in restricting chipping of metals and greatly extends the life of the coils. It is known to be the thinnest coating that is applied using computer-controlled applications.

Thermoguard- It is a type of heat-conductive spray coating technique that is done to achieve a long lasting protection from corrosion and humid temperature. Since, both Thermogurad and hydrophilic coated coils have smooth surfaces, they help to resist adhesion from dust particles and dirt to a large extent. Both of them allow least consumption of energy. However, they do require routine maintenance.
Esgard – Esgard is a type of base coating that helps to extend the life of coils in a super corrosive environment.

Astha Khandelwal is an ardent blogger and possess immense knowledge in the field of physics. His articles and blogs about AHU coils, condensers, evaporators, HVAC & R applications are highly informational in nature!
0 Likes
1 Shares
{count, plural, =0 {Comment} one {Comment} other {{count} Comments}}
Suggested
Recent
Cards you may also be interested in
Turn El Wire Into Neon Signs - DIY
Before today I had never heard of El wire. Neon? Sure, I've heard of that since before I was born. But what is El wire and how does it work? Well, from the looks of the tutorial from A Practical Wedding, online, it's easy to do, inexpensive and anyone can do it with the right supplies! Sounds good to me! Supplies Needed: 3′ x 3′ White Acrylic for “Love like Hell Yeah” 15″ x 17″ White Acrylic for “Love” 30 ft Pink El Wire Kit (5mm) (You can find it here from GlowCity.com) 10 ft Pink El Wire Kit (5mm) Print of Your Quote Chalkboard Marker/Dry Erase Marker Loctite Super Glue Ultra Gel Control Painters Tape Gaff Tape Drill with a quarter-inch drill bit 1. Print out your word to fit the acrylic. 2. Figure out where you will need to drill holes to make your words. The obvious ones, are at the beginning and end of every word or unconnected letter. 3. Trace your word or quote on to the acrylic using a dry erase or chalkboard marker. Do a test first to make sure it comes off your plexiglass easily before you write out the whole thing! 4. Drill a hole big enough for your EL wire to fit through everywhere you marked an “x”. 5. Pull all of your EL wire through the first hole from back to front (at the beginning of the “L”) leaving just the black wire that connects it to the battery pack on the back of the sign. 6. Now just trace your word with the EL wire, bending it over itself at the curves and securing them with a couple drops of super glue gel. You’ll have to hold it in place for a minute or two until it sticks and then you can use a piece of painters tape to hold it down while it dries completely (about ten minutes). TIP: If you wipe away the writing writing as you go, it makes it easier to to remove all the writing. 7. Continue gluing your EL wire at all the curves and loops and whenever you come to one of your holes, drop the EL wire to the back of your plexiglass, then pull it through the next hole and continue. 8. When you get to the last letter, drop the EL wire through to the back of your plexi and flip it over. You can cut off the extra EL wire now—just snip it with regular scissors! 9. Wrap any extra EL wire on the back with tape. 10. Plug in the battery pack and tape it to the pack of the sign! Pretty cool idea, right?! I am going to think of some other cool things that I can use this El wire with for future projects! Click here to see other fun things I am planning for my wedding.
Like
Comment
1