The recent flooding created by the storms in the Central and Eastern part of the US, once again brings attention to the safety hazards involved with flood damaged HVAC equipment.
Submerged HVAC equipment typically is damaged beyond what would be considered cost effective repair. Fully submerged equipment requires replacement of all open exposed electrical controls and motors. Likewise, gas piping, controls and burner systems require a combination of component part replacement and cleaning to assure proper, safe operation. In addition, submerged air handling or duct systems are subjected to the potential biological hazards caused by contaminated floodwater.
Johnson Controls Unitary Products Technical Services, strongly recommends complete equipment change-out coupled with a thorough duct system replacement or cleaning is likely the action required to restore safe, reliable HVAC system operation.
Johnson Controls UPG Technical Services strongly recommends that all flood damaged HVAC systems remain off line until properly inspected and dispositioned by a skilled HVAC professional. It should also be noted that part replacement due to flood damage is not covered by the Standard Limited Product Warranty.
If any questions should arise, please contact your lcoal Branch Technical Services for additional information or guidance.