Section 410IAC33-4-5. HVAC

   (a) Schools shall establish and maintain a written procedure for routine maintenance of HVAC systems. This procedure shall include, but is not limited to, the following items:

(1) A schedule for inspecting the HVAC system, including an annual inspection.

(2) Ensuring that all supply and return air pathways in the ventilation system are unobstructed and perform as required.

(3) A schedule for cleaning the HVAC coils annually at a minimum.

(4) A schedule for inspecting and changing filters.

This procedure shall be available for the state inspector's review.

  (b) Schools shall establish and maintain written maintenance logs covering cleaning and filter changes of the HVAC systems for a minimum of three (3) years. These logs shall be available for the state inspector's review.

  (c) For new construction or renovation of the HVAC system, all air supplies and air returns shall be ducted. Open return plenums above ceilings are not allowed. (Indiana State Department of Health; 410 IAC 33-4-5; filed Apr 13, 2011, 11:18 a.m.: 20110511-IR-410090682FRA)