Chilled Water Coil

Quality new chilled water coils that fit and perform to tight specifications, whether for original equipment or replacement.

Chilled water coil

Chilled Water Coil Information

Chilled water coils are heat exchangers, typically consisting of between 3–12 rows of tubes. Most chilled water coils have air entering the system at a temperature ranging from 75° F to 95° F, while chilled water enters the coil at a temperature around 45° F, from an onsite chilled water source, an offsite utility or another source of chilled water. As warm air passes across the coil and contacts the cold surface, heat transfers from the water flowing through the tubes to the air entering the coil.

Chilled water coils are suitable for use in a wide variety of HVAC systems, including air cooling and dehumidifying. We provide chilled water coils to meet your exact specifications. Our coils come with a variety of tube, fin and material options, often at a fraction of the cost of a new coil from the original equipment manufacturer (OEM).

Here are just a few of the chilled water coils brands we can replace, along with common installations. Even if your brand or installation isn’t listed below, we’re still your go-to supplier. If you need custom coils, you can use with our selection software or talk to one of our HVAC coil experts. Give us a call at 855-Coil-Now!

Top Brands

  • Trane
  • Carrier
  • McQuay
  • Heatcraft
  • Colmac


  • Air Handlers

Air Handling Unit

  • Chiller Rooms

Chilled Water Coils in Chiller Room

  • Insulated Cases

Insulated Chilled Water Coil

  • Etc.

If you have something not listed here, chances are we can still replace it. Just give us a call!

Chilled Water Coil Design

Chilled water coils are typically used to cool or remove moisture from air streams. The air to be cooled moves through the fins, and either water or an ethylene or propylene glycol solution move through the tubes.

Some typical applications for chilled water coils:

  • Comfort Cooling
  • Dehumidification
  • Process Cooling
  • Heat Reclaim

Chilled Water Coils come in a variety of shapes and sizes, but there are some properties that are common in most chilled water coils:

  • Rows

    Typically, chilled water applications have a small temperature difference between the air and water (20-50 degrees F). That means there has to be more heat transfer surface area, which can be accomplished by adding rows. For this reason we expect chilled water coils to be between 4-12 rows deep.

  • Tube Diameter

    5/8 inch tube diameter is the most common selection for chilled water coils. Since chilled water coils typically have many passes, pressure drop can get extreme with smaller tube diameters. 5/8 inch tubes also offer many wall thickness options, which can increase the coil's lifespan before tube erosion becomes a problem.

  • Connections

    Connections for chilled water coils are typically MPT (Male Pipe Thread) and made from schedule 40 steel. Smaller coils may use copper sweat connections. Grooved connection types are becoming increasingly popular, and are available on special request

Chilled Water Coil Specifications


Constructed from UNS 12200 seamless copper while conforming with ASTM B75, ASTM B88 and ASTM B251d

  • 5/8" diameter
    • 0.020", 0.025", 0.035", or 0.049" wall
  • 1/2" diameter
    • 0.017", 0.025", or 0.032" wall


All fins feature continuous die formed construction

  • 5/8" x 1.500" x 1.299" pattern
    • Waffle, flat corrugation, sine,
    • H1100 aluminum, C12200 copper, stainless
    • 0.0060", 0.0075", or 0.0100" thickness
    • 4-14 fins per inch
  • 1/2" x 1.250" x 1.083" pattern
    • Waffle or flat corrugation
    • H1100 aluminum or C12200 copper
    • 0.0060", 0.0075", or 0.0100" thickness
    • 4-14 fins per inch
  • 3/8" x 1.00" x 0.866" pattern
    • Waffle, flat corrugation, sine, louver
    • H1100 aluminum or C12200 copper
    • 0.0060", 0.0075", or 0.0100" thickness
    • 4-22 fins per inch


Constructed from UNS 12200 seamless copper while conforming with ASTM B75, ASTM B88 and ASTM B251d

Optional vents and drains for manual venting and drainage

Headers range from 0.75" nominal diameter (0.875" outside diameter) to 5" nominal diameter (5.125" outside diameter)


  • MPT (Male Pipe Thread)
    • Copper (Type "L")
    • Steel (Schedule 40)
    • Red Brass
  • FPT (Female Pipe Thread)
    • Copper (Type "L")
  • Sweat
    • Copper (Type "L")
  • Victaulic
    • Steel (Schedule 40)


  • 18,16,14,12,10 gauge
    • Galvanized Steel (G90)
    • Stainless Steel (304)
    • Stainless Steel (316)
    • Aluminum (H11)

Chilled Water Coil Performance

Coil performance varies greatly from application to application. Flow rates and temperatures for both fin and tube sides will greatly influence the performance characteristics for any given coil.

We have state of the art software that we can use to quote performance. For a detailed performance run tailored to your situation, please email with as many of the following details as you have available:

  • Coil model number
  • Duct size
  • Air Flow Rate in CFM (cubic feet per minute)
  • Entering Air Dry Bulb Temperature in °F
  • Entering Air Wet Bulb Temperature in °F (cooling coils only)
  • Fluid flow rate in GPM (gallons per minute, for water coils only)
  • Entering fluid temperature in °F
  • Desired capacity in MBH or tons
  • Desired leaving air temperature in °F

Related Applications:

Replacement Coil