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Evaporator Coil Replacement

Standard replacement of evaporator coil per industry standards.

This is a standard evaporator coil replacement, wherein we remove and replace the existing evaporator coil to insure proper unit repair. Often, we find leaks in coils and they are situated in areas that are simply not repairable. Even when they are repairable, that repair is at no-warranty and considered a temporary fix. When evaporator coil replacements are needed, it is often considered versus entire unit replacement due to the sheer expense.  

Definition: An evaporator coil is the part of an air conditioner or heat pump that absorbs the heat from the air in your facility. It is located inside the air handler or attached to the furnace.

Scope of Work

  1.   Perform required lockout/tag out safety protocol of NFPA70E of all high voltage electrical circuits prior to beginning work on the unit.
  2.   Recover remaining refrigerant from the coil circuit and dispose of properly per EPA standards.
  3.   Disassemble unit in order to access and remove existing coil for disposal and/or warranty return if applicable.
  4.   Furnish and install new evaporator coil and up to (2) liquid line dryers as required.
  5.   Pressure test all newly soldered connections with dry nitrogen to 250 psi to ensure all welds are leak-free.
  6.   Evacuate both refrigerant circuits to 500 microns as per industry standards.
  7.   Recharge system with refrigerant (Freon) to manufacturer’s specifications.
  8.   Basic start-up and testing of newly installed coil to ensure that it is performing with in manufacturers specifications per the unit’s nomenclature.

This article has been shared by Direct Service, Construction and Design to specifically accommodate our intended clientele.  The intent of sharing this information is to better inform the public of these general topics, expand knowledge and safety for all and provide crucial information in regard to their MEP and building systems and/or assets. It is NOT our recommendation that any article recommendations or how-to scenarios be attempted by anyone other than a qualified or competent person.