Replacement coil

A quick guide to OEM replacement coils


Microchannel coils have become a mainstay in the HVAC industry for most air-cooled chillers and other air conditioning equipment. Aluminum microchannel heat exchangers (often abbreviated as MCHE or MCHX) offer a line of advantages for both manufacturers and end-users:

  • Reduced refrigerant footprint: internal volume of a microchannel condenser is about up to 60% smaller compared to a finned pack coil with copper tubes of the same capacity.
  • High corrosion resistance contributes to longer coil service life.
  • Lower required fan power draw as air pressure resistance of MCHE coils is low.
  • As a cheaper material, aluminum help keep condenser costs down.
  • Low weight.

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Chiller with microchannel condenser coils

Microchannel condenser coil replacement project

This month, Kaltra announced the completion of a service project for the replacement of condenser coils for the chilled water production plant of a Tier-III data center in Munich, Germany. More than 120 original heat exchangers reaching the end of service life have been replaced with Kaltra coils providing a long lifespan and additional corrosion protection.

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Microchannel coil

Charging microchannel coils

Microchannel coils are here to stay. Their use is rapidly spreading to a variety of HVAC applications. Microchannel heat exchangers are stronger, lighter, offer higher heat transfer compared to other types of air-to-refrigerant coils. They are smaller in size and also in internal volume, resulting in a refrigerant charge that is significantly reduced.

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Microchannel heat exchanger

Kaltra offers coil replacements for condensers and water applications

When you need OEM replacement coils for your refrigeration or cooling system, Kaltra gets you covered with microchannel heat exchangers, matching or exceeding the performance of original coils.

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Microchannel heat exchanger

Microchannel coil: fix or replace

by Lance Robinson

I vote for fix. Anytime you can fix a condenser as opposed to replacing it, is a good day for all in the repair business. Less time = more money. Customers are happier and all around better vibe. Replacement of perfectly good coil makes no sense. Instead make the fix in less than 5 minutes with a propane torch and a few simple instruments all HVAC techs have on hand.

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