Our jurisdiction has a few commercial cooking establishments where the hood suppression system does not meet IFC 904.11. Is there a code requirement to update these systems?
We use 2006 IFC only so please do not comment on NFPA 101
IFC 901.4 Installation.
Fire protection systems shall be maintained in accordance with the original installation standards for that system. Required systems shall be extended, altered, or augmented as necessary to maintain and continue protection whenever the building is altered, remodeled or added to. Alterations to fire protection systems shall be done in accordance with applicable standards.
IFC [M] 609.1 General.
Commercial kitchen exhaust hoods shall comply with the requirements of the International Mechanical Code.
102.2 Existing installations.
Except as otherwise provided for in this chapter, a provision in this code shall not require the removal, alteration or abandonment of, nor prevent the continued utilization and maintenance of, a mechanical system lawfully in existence at the time of the adoption of this code.
Mechanical systems, both existing and new, and parts thereof shall be maintained in proper operating condition in accordance with the original design and in a safe and sanitary condition. Devices or safeguards which are required by this code shall be maintained in compliance with the code edition under which they were installed. The owner or the owner’s designated agent shall be responsible for maintenance of mechanical systems. To determine compliance with this provision, the code official shall have the authority to require a mechanical system to be reinspected.