Evaporator Coils Part 1: Multi-Circuit Coil Types

There’s more to a evaporator coil than most realize. Install, pipe, or stage them incorrectly and you will run into a number of problems.

You’re probably saying to yourself “Self, who cares?”

You do.

Installing, piping, or staging the coil incorrectly can result in

  1. Poor humidity control
  2. Compressor failures
  3. Condensate blow-off
  4. Oil logging
  5. Nasty rashes in unspeakable places

(I made number 5 up to get your attention…)

In this series of posts we will make you the Zen Master of evaporator coils.

We’re going to cover coil types, proper installation, proper staging, and diagnostics.

Multi-circuited evaporator coils come in three flavors:

Face-Split,  Row-Split,  Tube-Split.

Rather than explain the differences, we’re going to show you.

The red line in each picture represents how the coil circuits are split for each coil style.

Face split cuts the coil into a top and bottom circuit.

Face Split

Row split cuts the coil into front and back circuits

Tube Split

Tube split cuts the coil into left and right circuits.

Row Split

 

 

 

 

 

 

 

 

 

 

 

 

 

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Patrick is Zen HVAC’s diagnostic and training guy.

Patrick started in the trade the day he left technical school and never looked back.

He’s served in various technical and training roles in the HVAC industry but specializes in system troubleshooting and diagnostics, retro commissioning, and technical training.

His moto: If I can understand it, anybody can.

Patrick uses the Zen common sense approach to teach

Patrick’s Likes- His Wife, kids and dog. Old pickup trucks. Hiking. The industrial Revolution.

Patrick’s Dislikes- Taking work too seriously. Anything unintuitive. Emoticons :(

Patrick’s Favorite famous person- Theodore Roosevelt “I am only an average man, But I work harder at it than the average man”

Famous Patrick Quote- “Well, that was stupid of me”

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